1 # Copyright 1998-2024 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 3 of the License, or
6 # (at your option) any later version.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program. If not, see <http://www.gnu.org/licenses/>.
16 # written by Elena Zannoni (ezannoni@cygnus.com)
17 # Rewritten by Michael Chastain <mec.gnu@mindspring.com>
19 # This file is part of the gdb testsuite
21 # Tests for overloaded member functions.
27 require allow_cplus_tests
31 if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug c++}]} {
35 # Set it up at a breakpoint so we can play with the variable values.
37 if {![runto 'marker1']} {
41 # Prevent symbol on address 0x0 being printed.
42 gdb_test_no_output "set print symbol off"
44 gdb_test "up" ".*main.*" "up from marker1"
46 # Print the monster class type.
47 # See virtfunc.exp for a discussion of ptype.
49 # This is hairy to begin with. It is even more hairy because of the
50 # XX_* alternate patterns to catch the KFAIL and XFAIL cases.
52 set re_class "((struct|class) foo \{${ws}public:|struct foo \{)"
53 set re_fields "int ifoo;${ws}const char ?\\* ?ccpfoo;"
54 set XX_fields "int ifoo;${ws}char ?\\* ?ccpfoo;"
55 set re_ctor "foo\\(int\\);${ws}foo\\(int, (char const|const char) ?\\*\\);${ws}foo\\(foo ?&\\);"
56 set re_dtor "~foo\\((void|)\\);"
57 set XX_dtor "~foo\\(int\\);"
58 set re_methods "void foofunc\\(int\\);"
59 set re_methods "${re_methods}${ws}void foofunc\\(int, signed char ?\\*\\);"
60 set re_methods "${re_methods}${ws}int overload1arg\\((void|)\\);"
61 set re_methods "${re_methods}${ws}int overload1arg\\(char\\);"
62 set re_methods "${re_methods}${ws}int overload1arg\\(signed char\\);"
63 set re_methods "${re_methods}${ws}int overload1arg\\(unsigned char\\);"
64 set re_methods "${re_methods}${ws}int overload1arg\\(short( int)?\\);"
65 set re_methods "${re_methods}${ws}int overload1arg\\((unsigned short|short unsigned)( int)?\\);"
66 set re_methods "${re_methods}${ws}int overload1arg\\(int\\);"
67 set re_methods "${re_methods}${ws}int overload1arg\\(unsigned int\\);"
68 set re_methods "${re_methods}${ws}int overload1arg\\(long( int)?\\);"
69 set re_methods "${re_methods}${ws}int overload1arg\\((unsigned long|long unsigned)( int)?\\);"
70 set re_methods "${re_methods}${ws}int overload1arg\\(float\\);"
71 set re_methods "${re_methods}${ws}int overload1arg\\(double\\);"
72 set re_methods "${re_methods}${ws}int overload1arg\\(int \\*\\);"
73 set re_methods "${re_methods}${ws}int overload1arg\\(void \\*\\);"
74 set re_methods "${re_methods}${ws}int overloadfnarg\\((void|)\\);"
75 set re_methods "${re_methods}${ws}int overloadfnarg\\(int\\);"
76 set re_methods "${re_methods}${ws}int overloadfnarg\\(int, int ?\\(\\*\\) ?\\(int\\)\\);"
77 set re_methods "${re_methods}${ws}int overloadargs\\(int\\);"
78 set re_methods "${re_methods}${ws}int overloadargs\\(int, int\\);"
79 set re_methods "${re_methods}${ws}int overloadargs\\(int, int, int\\);"
80 set re_methods "${re_methods}${ws}int overloadargs\\(int, int, int, int\\);"
81 set re_methods "${re_methods}${ws}int overloadargs\\(int, int, int, int, int\\);"
82 set re_methods "${re_methods}${ws}int overloadargs\\(int, int, int, int, int, int\\);"
83 set re_methods "${re_methods}${ws}int overloadargs\\(int, int, int, int, int, int, int\\);"
84 set re_methods "${re_methods}${ws}int overloadargs\\(int, int, int, int, int, int, int, int\\);"
85 set re_methods "${re_methods}${ws}int overloadargs\\(int, int, int, int, int, int, int, int, int\\);"
86 set re_methods "${re_methods}${ws}int overloadargs\\(int, int, int, int, int, int, int, int, int, int\\);"
87 set re_methods "${re_methods}${ws}int overloadargs\\(int, int, int, int, int, int, int, int, int, int, int\\);"
88 set re_synth "foo & operator=\\(foo const ?&\\);"
90 gdb_test "print foo_instance1" "\\$\[0-9\]+ = \{ifoo = 111, ccpfoo = 0x0\}"
92 set lines [gdb_get_lines "ptype foo_instance1"]
93 set test "ptype foo_instance1 output"
94 if { [regexp "^type = $re_class${ws}$XX_fields${ws}$re_synth${ws}$re_dtor${ws}$re_ctor${ws}$re_methods$nl\}\r\n$" $lines] } {
95 # gcc 2.95.3 -gstabs+, no "const" on "const char *"
96 # TODO: gdb.base/constvar.exp has XFAILed this kind of problem for a
97 # long time, but an XFAIL really needs an external bug report.
98 # -- chastain 2003-12-31
100 # fail "ptype foo_instance1"
101 # TODO: this should be a KFAIL.
102 pass "$test (shorter match)"
103 } elseif { [regexp "^type = $re_class${ws}$re_fields${ws}$re_synth${ws}$re_dtor${ws}$re_ctor${ws}$re_methods$nl\}\r\n$" $lines] } {
104 # gcc 2.95.3 -gstabs+ if "const char *" ever gets fixed
106 } elseif { [regexp "^type = $re_class${ws}$re_fields${ws}$re_ctor${ws}$XX_dtor${ws}$re_methods$nl\}\r\n$" $lines] } {
107 # gcc 3.3.2 -gdwarf-2, "~foo(int)"
109 # kfail "gdb/1113" "ptype foo_instance1"
110 pass "$test (shorter match)"
111 } elseif { [regexp "^type = $re_class${ws}$re_fields${ws}$re_ctor${ws}$re_dtor${ws}$re_methods$nl\}\r\n$" $lines] } {
112 # gcc 3.3.2 -gdwarf-2, if the dtor bug gets fixed
113 # gcc HEAD -gdwarf-2 (abi-2)
114 # TODO: just pass this
115 pass "$test (shorter match)"
116 } elseif { [regexp "^type = $re_class${ws}$re_fields${ws}$re_synth${ws}$re_ctor${ws}$re_dtor${ws}$re_methods$nl\}\r\n$" $lines] } {
118 # TODO: enough with the "shorter match"
119 pass "$test (shorter match)"
120 } elseif { [regexp "^type = $re_class${ws}$re_fields${ws}$re_ctor${ws}$re_dtor${ws}$re_methods${ws}$re_synth$nl\}\r\n$" $lines] } {
121 # gcc HEAD -gstabs+ (abi-2)
122 pass "$test (shorter match)"
127 # Print variables and method calls.
128 # This is a walk in the park.
130 gdb_test "print foo_instance2" "\\$\[0-9\]+ = \{ifoo = 222, ccpfoo = $hex \"A\"\}"
131 gdb_test "print foo_instance3" "\\$\[0-9\]+ = \{ifoo = 222, ccpfoo = $hex \"A\"\}"
133 gdb_test "print foo_instance1.overloadargs(1)" "\\$\[0-9\]+ = 1" \
134 "print call overloaded func 1 arg"
136 # Regression test for overloading with function pointer type.
137 gdb_test "print foo_instance1.overloadfnarg(23, intintfunc)" " = 23"
139 # If GDB fails to restore the selected frame properly after the
140 # inferior function call above (see GDB PR 1155 for an explanation of
141 # why this might happen), all the subsequent tests will fail. We
142 # should detect and report that failure, but let the marker call
143 # finish so that the rest of the tests can run undisturbed.
145 gdb_test_multiple "frame" "re-selected 'main' frame after inferior call" {
146 -re "#0 marker1.*$gdb_prompt $" {
147 setup_kfail "gdb/1155" s390-*-linux-gnu
148 fail "re-selected 'main' frame after inferior call"
149 gdb_test "finish" ".*main.*at .*overload.cc:.*// marker1-returns-here.*" \
150 "finish call to marker1"
152 -re "#1 ($hex in )?main.*$gdb_prompt $" {
153 pass "re-selected 'main' frame after inferior call"
157 gdb_test "print foo_instance1.overloadargs(1, 2)" \
159 "print call overloaded func 2 args"
161 gdb_test "print foo_instance1.overloadargs(1, 2, 3)" \
163 "print call overloaded func 3 args"
165 gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4)" \
167 "print call overloaded func 4 args"
169 gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4, 5)" \
171 "print call overloaded func 5 args"
173 gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4, 5, 6)" \
175 "print call overloaded func 6 args"
177 gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4, 5, 6, 7)" \
179 "print call overloaded func 7 args"
181 gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4, 5, 6, 7, 8)" \
183 "print call overloaded func 8 args"
185 gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4, 5, 6, 7, 8, 9)" \
187 "print call overloaded func 9 args"
189 gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)" \
191 "print call overloaded func 10 args"
193 gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11)" \
195 "print call overloaded func 11 args"
197 gdb_test "print foo_instance1.overload1arg()" \
199 "print call overloaded func void arg"
201 gdb_test "print foo_instance1.overload1arg((char)arg2)" \
203 "print call overloaded func char arg"
205 gdb_test "print foo_instance1.overload1arg((signed char)arg3)" \
207 "print call overloaded func signed char arg"
209 gdb_test "print foo_instance1.overload1arg((unsigned char)arg4)" \
211 "print call overloaded func unsigned char arg"
213 gdb_test "print foo_instance1.overload1arg((short)arg5)" \
215 "print call overloaded func short arg"
217 gdb_test "print foo_instance1.overload1arg((unsigned short)arg6)" \
219 "print call overloaded func unsigned short arg"
221 gdb_test "print foo_instance1.overload1arg((int)arg7)" \
223 "print call overloaded func int arg"
225 gdb_test "print foo_instance1.overload1arg((unsigned int)arg8)" \
227 "print call overloaded func unsigned int arg"
229 gdb_test "print foo_instance1.overload1arg((long)arg9)" \
231 "print call overloaded func long arg"
233 gdb_test "print foo_instance1.overload1arg((unsigned long)arg10)" \
235 "print call overloaded func unsigned long arg"
237 gdb_test "print foo_instance1.overload1arg((float)arg11)" \
239 "print call overloaded func float arg"
241 gdb_test "print foo_instance1.overload1arg((double)arg12)" \
243 "print call overloaded func double arg"
245 gdb_test "print foo_instance1.overload1arg(&arg13)" \
247 "print call overloaded func int\\* arg"
249 gdb_test "print foo_instance1.overload1arg(&arg14)" \
251 "print call overloaded func char\\* arg"
253 gdb_test "print bar(a)" "= 11"
254 gdb_test "print bar(b)" "= 22"
255 gdb_test "print bar(c)" "= 22"
256 gdb_test "print bar(d)" "= 22"
258 # PR c++/28901 - gdb thought this was ambiguous.
259 gdb_test "print bar2(e, b)" " = 33"
263 # List overloaded functions.
265 gdb_test_no_output "set listsize 1" ""
267 # Build source listing pattern based on an inclusive line range.
269 proc line_range_pattern { range_start range_end } {
272 for {set i $range_start} {$i <= $range_end} {incr i} {
273 append pattern "\r\n$i\[ \t\]\[^\r\n\]*"
276 verbose -log "pattern $pattern"
280 # The void case is tricky because some compilers say "(void)"
281 # and some compilers say "()".
283 gdb_test_multiple "info func overloadfnarg" "list overloaded function with no args" {
284 -re ".*overloadfnarg\\(void\\).*$gdb_prompt $" {
286 gdb_test "list foo::overloadfnarg(void)"\
287 ".*int foo::overloadfnarg.*\\(void\\).*" \
288 "list overloaded function with no args"
290 -re ".*overloadfnarg\\(\\).*$gdb_prompt $" {
292 gdb_test "list foo::overloadfnarg()"\
293 ".*int foo::overloadfnarg.*\\(void\\).*" \
294 "list overloaded function with no args"
298 gdb_test "list foo::overloadfnarg(int)" \
299 "int foo::overloadfnarg.*\\(int arg\\).*" \
300 "list overloaded function with int arg"
302 gdb_test "list foo::overloadfnarg(int, int (*)(int))" \
303 "int foo::overloadfnarg.*\\(int arg, int \\(\\*foo\\) \\(int\\)\\).*" \
304 "list overloaded function with function ptr args"
306 gdb_test "list \"foo::overloadfnarg(int, int (*)(int))\"" \
307 "int foo::overloadfnarg.*\\(int arg, int \\(\\*foo\\) \\(int\\)\\).*" \
308 "list overloaded function with function ptr args - quotes around argument"
310 # Test list with filename.
312 gdb_test "list ${srcfile}:intToChar" "int intToChar.*"
313 gdb_test "list ${srcfile}:intToChar(char)" "int intToChar.*"
314 gdb_test "list ${srcfile}:'intToChar(char)'" "int intToChar.*"
315 gdb_test "list '${srcfile}:intToChar(char)'" "int intToChar.*"
316 gdb_test "list '${srcfile}':intToChar(char)" "int intToChar.*"
317 gdb_test "list '${srcfile}':'intToChar(char)'" "int intToChar.*"
319 # And with filename and namespace.
321 gdb_test "list ${srcfile}:foo::overloadfnarg(int)" "int foo::overloadfnarg.*}"
322 gdb_test "list ${srcfile}:'foo::overloadfnarg(int)'" "int foo::overloadfnarg.*}"
324 # Now some tests to see how overloading and namespaces interact.
326 gdb_test "print overloadNamespace(1)" ".\[0-9\]* = 1"
327 gdb_test "print overloadNamespace('a')" ".\[0-9\]* = 1"
328 gdb_test "print overloadNamespace(dummyInstance)" ".\[0-9\]* = 2"
331 gdb_test "print K::staticoverload ()" " = 1"
332 gdb_test "print K::staticoverload (2)" " = 2"
333 gdb_test "print K::staticoverload (2, 3)" " = 5"
335 # Namespace-qualified functions.
336 gdb_test "print N::nsoverload ()" " = 1"
337 gdb_test "print N::nsoverload (2)" " = 2"
338 gdb_test "print N::nsoverload (2, 3)" " = 5"
340 # Test "list function" when there are multiple "function" overloads.
342 with_test_prefix "list all overloads" {
343 # Bump up listsize again, to make sure the number of lines to
344 # display before/after each location is computed correctly.
345 gdb_test_no_output "set listsize 10"
347 set line_bar_A [gdb_get_line_number "int bar (A)"]
348 set line_bar_B [gdb_get_line_number "int bar (B)"]
349 set lines1 [line_range_pattern [expr $line_bar_A - 5] [expr $line_bar_A + 4]]
350 set lines2 [line_range_pattern [expr $line_bar_B - 5] [expr $line_bar_B + 4]]
353 set h1_re "file: \"${any}overload.cc\", line number: $line_bar_A, symbol: \"bar\\(A\\)\""
354 set h2_re "file: \"${any}overload.cc\", line number: $line_bar_B, symbol: \"bar\\(B\\)\""
355 gdb_test "list bar" "${h1_re}${lines1}\r\n${h2_re}${lines2}"
358 if {![runto 'XXX::marker2']} {
362 gdb_test "print overloadNamespace(1)" ".\[0-9\]* = 3" "print overloadNamespace(1) in XXX"
363 gdb_test "print overloadNamespace('a')" ".\[0-9\]* = 3" "print overloadNamespace('a') in XXX"
364 gdb_test "print overloadNamespace(dummyInstance)" ".\[0-9\]* = 2" "print overloadNamespace(dummyInstance) in XXX"
366 # One last mysterious test.
367 # I wonder what this is for?
369 gdb_test "print intToChar(1)" "\\$\[0-9\]+ = 297"
371 # Test expression evaluation with overloaded methods
372 gdb_test "print foo::overload1arg" \
373 "non-unique member `overload1arg' requires type instantiation"
375 gdb_test "print foo::overload1arg(char***)" \
376 "no member function matches that type instantiation"
378 gdb_test "print foo::overload1arg(void)" \
379 "\\$$decimal = {int \\(foo \\*( const|)\\)} $hex <foo::overload1arg\\(\\)>"
381 foreach t [list char "signed char" "unsigned char" "short" \
382 "unsigned short" int "unsigned int" long "unsigned long" \
384 gdb_test "print foo::overload1arg($t)" \
385 "\\$$decimal = {int \\(foo \\*( const|), $t\\)} $hex <foo::overload1arg\\($t\\)>"