gdb/testsuite/gdb.cp/overload.exp

   1 # Copyright 1998-2022 Free Software Foundation, Inc.
   2
   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.
   7 #
   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.
  12 #
  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/>.
  15
  16 # written by Elena Zannoni (ezannoni@cygnus.com)
  17 # Rewritten by Michael Chastain <mec.gnu@mindspring.com>
  18
  19 # This file is part of the gdb testsuite
  20
  21 # Tests for overloaded member functions.
  22
  23 set ws "\[\r\n\t \]+"
  24 set nl "\[\r\n\]+"
  25
  26
  27 if { [skip_cplus_tests] } { continue }
  28
  29 standard_testfile .cc
  30
  31 if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug c++}]} {
  32     return -1
  33 }
  34
  35 # Set it up at a breakpoint so we can play with the variable values.
  36
  37 if ![runto 'marker1'] then {
  38     perror "couldn't run to marker1"
  39     continue
  40 }
  41
  42 # Prevent symbol on address 0x0 being printed.
  43 gdb_test_no_output "set print symbol off"
  44
  45 gdb_test "up" ".*main.*" "up from marker1"
  46
  47 # Print the monster class type.
  48 # See virtfunc.exp for a discussion of ptype.
  49 #
  50 # This is hairy to begin with.  It is even more hairy because of the
  51 # XX_* alternate patterns to catch the KFAIL and XFAIL cases.
  52
  53 set re_class    "((struct|class) foo \{${ws}public:|struct foo \{)"
  54 set re_fields   "int ifoo;${ws}const char ?\\* ?ccpfoo;"
  55 set XX_fields   "int ifoo;${ws}char ?\\* ?ccpfoo;"
  56 set re_ctor     "foo\\(int\\);${ws}foo\\(int, (char const|const char) ?\\*\\);${ws}foo\\(foo ?&\\);"
  57 set re_dtor     "~foo\\((void|)\\);"
  58 set XX_dtor     "~foo\\(int\\);"
  59 set re_methods                    "void foofunc\\(int\\);"
  60 set re_methods  "${re_methods}${ws}void foofunc\\(int, signed char ?\\*\\);"
  61 set re_methods  "${re_methods}${ws}int overload1arg\\((void|)\\);"
  62 set re_methods  "${re_methods}${ws}int overload1arg\\(char\\);"
  63 set re_methods  "${re_methods}${ws}int overload1arg\\(signed char\\);"
  64 set re_methods  "${re_methods}${ws}int overload1arg\\(unsigned char\\);"
  65 set re_methods  "${re_methods}${ws}int overload1arg\\(short( int)?\\);"
  66 set re_methods  "${re_methods}${ws}int overload1arg\\((unsigned short|short unsigned)( int)?\\);"
  67 set re_methods  "${re_methods}${ws}int overload1arg\\(int\\);"
  68 set re_methods  "${re_methods}${ws}int overload1arg\\(unsigned int\\);"
  69 set re_methods  "${re_methods}${ws}int overload1arg\\(long( int)?\\);"
  70 set re_methods  "${re_methods}${ws}int overload1arg\\((unsigned long|long unsigned)( int)?\\);"
  71 set re_methods  "${re_methods}${ws}int overload1arg\\(float\\);"
  72 set re_methods  "${re_methods}${ws}int overload1arg\\(double\\);"
  73 set re_methods  "${re_methods}${ws}int overload1arg\\(int \\*\\);"
  74 set re_methods  "${re_methods}${ws}int overload1arg\\(void \\*\\);"
  75 set re_methods  "${re_methods}${ws}int overloadfnarg\\((void|)\\);"
  76 set re_methods  "${re_methods}${ws}int overloadfnarg\\(int\\);"
  77 set re_methods  "${re_methods}${ws}int overloadfnarg\\(int, int ?\\(\\*\\) ?\\(int\\)\\);"
  78 set re_methods  "${re_methods}${ws}int overloadargs\\(int\\);"
  79 set re_methods  "${re_methods}${ws}int overloadargs\\(int, int\\);"
  80 set re_methods  "${re_methods}${ws}int overloadargs\\(int, int, int\\);"
  81 set re_methods  "${re_methods}${ws}int overloadargs\\(int, int, int, int\\);"
  82 set re_methods  "${re_methods}${ws}int overloadargs\\(int, int, int, int, int\\);"
  83 set re_methods  "${re_methods}${ws}int overloadargs\\(int, int, int, int, int, int\\);"
  84 set re_methods  "${re_methods}${ws}int overloadargs\\(int, int, int, int, int, int, int\\);"
  85 set re_methods  "${re_methods}${ws}int overloadargs\\(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\\);"
  87 set re_methods  "${re_methods}${ws}int overloadargs\\(int, int, int, int, int, int, int, int, int, int\\);"
  88 set re_methods  "${re_methods}${ws}int overloadargs\\(int, int, int, int, int, int, int, int, int, int, int\\);"
  89 set re_synth    "foo & operator=\\(foo const ?&\\);"
  90
  91 gdb_test "print foo_instance1" "\\$\[0-9\]+ = \{ifoo = 111, ccpfoo = 0x0\}"
  92
  93 gdb_test_multiple "ptype foo_instance1" "ptype foo_instance1" {
  94     -re "type = $re_class${ws}$XX_fields${ws}$re_synth${ws}$re_dtor${ws}$re_ctor${ws}$re_methods$nl\}$nl$gdb_prompt $" {
  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
  99         # setup_xfail "*-*-*"
 100         # fail "ptype foo_instance1"
 101         # TODO: this should be a KFAIL.
 102         pass "ptype foo_instance1 (shorter match)"
 103     }
 104     -re "type = $re_class${ws}$re_fields${ws}$re_synth${ws}$re_dtor${ws}$re_ctor${ws}$re_methods$nl\}$nl$gdb_prompt $" {
 105         # gcc 2.95.3 -gstabs+ if "const char *" ever gets fixed
 106         pass "ptype foo_instance1"
 107     }
 108     -re "type = $re_class${ws}$re_fields${ws}$re_ctor${ws}$XX_dtor${ws}$re_methods$nl\}$nl$gdb_prompt $" {
 109         # gcc 3.3.2 -gdwarf-2, "~foo(int)"
 110         # TODO: kfail this
 111         # kfail "gdb/1113" "ptype foo_instance1"
 112         pass "ptype foo_instance1 (shorter match)"
 113     }
 114     -re "type = $re_class${ws}$re_fields${ws}$re_ctor${ws}$re_dtor${ws}$re_methods$nl\}$nl$gdb_prompt $" {
 115         # gcc 3.3.2 -gdwarf-2, if the dtor bug gets fixed
 116         # gcc HEAD -gdwarf-2 (abi-2)
 117         # TODO: just pass this
 118         pass "ptype foo_instance1 (shorter match)"
 119     }
 120     -re "type = $re_class${ws}$re_fields${ws}$re_synth${ws}$re_ctor${ws}$re_dtor${ws}$re_methods$nl\}$nl$gdb_prompt $" {
 121         # gcc 3.3.2 -gstabs+
 122         # TODO: enough with the "shorter match"
 123         pass "ptype foo_instance1 (shorter match)"
 124     }
 125     -re "type = $re_class${ws}$re_fields${ws}$re_ctor${ws}$re_dtor${ws}$re_methods${ws}$re_synth$nl\}$nl$gdb_prompt $" {
 126         # gcc HEAD -gstabs+ (abi-2)
 127         pass "ptype foo_instance1 (shorter match)"
 128     }
 129 }
 130
 131 # Print variables and method calls.
 132 # This is a walk in the park.
 133
 134 gdb_test "print foo_instance2" "\\$\[0-9\]+ = \{ifoo = 222, ccpfoo = $hex \"A\"\}"
 135 gdb_test "print foo_instance3" "\\$\[0-9\]+ = \{ifoo = 222, ccpfoo = $hex \"A\"\}"
 136
 137 gdb_test "print foo_instance1.overloadargs(1)" "\\$\[0-9\]+ = 1" \
 138     "print call overloaded func 1 arg"
 139
 140 # Regression test for overloading with function pointer type.
 141 gdb_test "print foo_instance1.overloadfnarg(23, intintfunc)" " = 23"
 142
 143 # If GDB fails to restore the selected frame properly after the
 144 # inferior function call above (see GDB PR 1155 for an explanation of
 145 # why this might happen), all the subsequent tests will fail.  We
 146 # should detect and report that failure, but let the marker call
 147 # finish so that the rest of the tests can run undisturbed.
 148
 149 gdb_test_multiple "frame" "re-selected 'main' frame after inferior call" {
 150     -re "#0  marker1.*$gdb_prompt $" {
 151         setup_kfail "gdb/1155" s390-*-linux-gnu
 152         fail "re-selected 'main' frame after inferior call"
 153         gdb_test "finish" ".*main.*at .*overload.cc:.*// marker1-returns-here.*" \
 154             "finish call to marker1"
 155     }
 156     -re "#1  ($hex in )?main.*$gdb_prompt $" {
 157         pass "re-selected 'main' frame after inferior call"
 158     }
 159 }
 160
 161 gdb_test "print foo_instance1.overloadargs(1, 2)" \
 162     "\\$\[0-9\]+ = 2" \
 163     "print call overloaded func 2 args"
 164
 165 gdb_test "print foo_instance1.overloadargs(1, 2, 3)" \
 166     "\\$\[0-9\]+ = 3" \
 167     "print call overloaded func 3 args"
 168
 169 gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4)" \
 170     "\\$\[0-9\]+ = 4" \
 171     "print call overloaded func 4 args"
 172
 173 gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4, 5)" \
 174     "\\$\[0-9\]+ = 5" \
 175     "print call overloaded func 5 args"
 176
 177 gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4, 5, 6)" \
 178     "\\$\[0-9\]+ = 6" \
 179     "print call overloaded func 6 args"
 180
 181 gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4, 5, 6, 7)" \
 182     "\\$\[0-9\]+ = 7" \
 183     "print call overloaded func 7 args"
 184
 185 gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4, 5, 6, 7, 8)" \
 186     "\\$\[0-9\]+ = 8" \
 187     "print call overloaded func 8 args"
 188
 189 gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4, 5, 6, 7, 8, 9)" \
 190     "\\$\[0-9\]+ = 9" \
 191     "print call overloaded func 9 args"
 192
 193 gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)" \
 194     "\\$\[0-9\]+ = 10" \
 195     "print call overloaded func 10 args"
 196
 197 gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11)" \
 198     "\\$\[0-9\]+ = 11" \
 199     "print call overloaded func 11 args"
 200
 201 gdb_test "print foo_instance1.overload1arg()" \
 202     "\\$\[0-9\]+ = 1" \
 203     "print call overloaded func void arg"
 204
 205 gdb_test "print foo_instance1.overload1arg((char)arg2)" \
 206     "\\$\[0-9\]+ = 2" \
 207     "print call overloaded func char arg"
 208
 209 gdb_test "print foo_instance1.overload1arg((signed char)arg3)" \
 210     "\\$\[0-9\]+ = 3" \
 211     "print call overloaded func signed char arg"
 212
 213 gdb_test "print foo_instance1.overload1arg((unsigned char)arg4)" \
 214     "\\$\[0-9\]+ = 4" \
 215     "print call overloaded func unsigned char arg"
 216
 217 gdb_test "print foo_instance1.overload1arg((short)arg5)" \
 218     "\\$\[0-9\]+ = 5" \
 219     "print call overloaded func short arg"
 220
 221 gdb_test "print foo_instance1.overload1arg((unsigned short)arg6)" \
 222     "\\$\[0-9\]+ = 6" \
 223     "print call overloaded func unsigned short arg"
 224
 225 gdb_test "print foo_instance1.overload1arg((int)arg7)" \
 226     "\\$\[0-9\]+ = 7" \
 227     "print call overloaded func int arg"
 228
 229 gdb_test "print foo_instance1.overload1arg((unsigned int)arg8)" \
 230     "\\$\[0-9\]+ = 8" \
 231     "print call overloaded func unsigned int arg"
 232
 233 gdb_test "print foo_instance1.overload1arg((long)arg9)" \
 234     "\\$\[0-9\]+ = 9" \
 235     "print call overloaded func long arg"
 236
 237 gdb_test "print foo_instance1.overload1arg((unsigned long)arg10)" \
 238     "\\$\[0-9\]+ = 10" \
 239     "print call overloaded func unsigned long arg"
 240
 241 gdb_test "print foo_instance1.overload1arg((float)arg11)" \
 242     "\\$\[0-9\]+ = 11" \
 243     "print call overloaded func float arg"
 244
 245 gdb_test "print foo_instance1.overload1arg((double)arg12)" \
 246     "\\$\[0-9\]+ = 12" \
 247     "print call overloaded func double arg"
 248
 249 gdb_test "print foo_instance1.overload1arg(&arg13)" \
 250     "\\$\[0-9\]+ = 13" \
 251     "print call overloaded func int\\* arg"
 252
 253 gdb_test "print foo_instance1.overload1arg(&arg14)" \
 254     "\\$\[0-9\]+ = 14" \
 255     "print call overloaded func char\\* arg"
 256
 257 gdb_test "print bar(a)" "= 11"
 258 gdb_test "print bar(b)" "= 22"
 259 gdb_test "print bar(c)" "= 22"
 260 gdb_test "print bar(d)" "= 22"
 261
 262 # ---
 263
 264 # List overloaded functions.
 265
 266 gdb_test_no_output "set listsize 1" ""
 267
 268 # Build source listing pattern based on an inclusive line range.
 269
 270 proc line_range_pattern { range_start range_end } {
 271     global line_re
 272
 273     for {set i $range_start} {$i <= $range_end} {incr i} {
 274         append pattern "\r\n$i\[ \t\]\[^\r\n\]*"
 275     }
 276
 277     verbose -log "pattern $pattern"
 278     return $pattern
 279 }
 280
 281 # The void case is tricky because some compilers say "(void)"
 282 # and some compilers say "()".
 283
 284 gdb_test_multiple "info func overloadfnarg" "list overloaded function with no args" {
 285     -re ".*overloadfnarg\\(void\\).*$gdb_prompt $" {
 286         # gcc 2
 287         gdb_test "list foo::overloadfnarg(void)"\
 288                 ".*int foo::overloadfnarg.*\\(void\\).*" \
 289                 "list overloaded function with no args"
 290     }
 291     -re ".*overloadfnarg\\(\\).*$gdb_prompt $" {
 292         # gcc 3
 293         gdb_test "list foo::overloadfnarg()"\
 294                 ".*int foo::overloadfnarg.*\\(void\\).*" \
 295                 "list overloaded function with no args"
 296     }
 297 }
 298
 299 gdb_test "list foo::overloadfnarg(int)" \
 300     "int foo::overloadfnarg.*\\(int arg\\).*" \
 301    "list overloaded function with int arg"
 302
 303 gdb_test "list foo::overloadfnarg(int, int (*)(int))" \
 304    "int foo::overloadfnarg.*\\(int arg, int \\(\\*foo\\) \\(int\\)\\).*" \
 305    "list overloaded function with function ptr args"
 306
 307 gdb_test "list \"foo::overloadfnarg(int, int (*)(int))\"" \
 308    "int foo::overloadfnarg.*\\(int arg, int \\(\\*foo\\) \\(int\\)\\).*" \
 309    "list overloaded function with function ptr args - quotes around argument"
 310
 311 # Test list with filename.
 312
 313 gdb_test "list ${srcfile}:intToChar" "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 '${srcfile}':intToChar(char)" "int intToChar.*"
 318 gdb_test "list '${srcfile}':'intToChar(char)'" "int intToChar.*"
 319
 320 # And with filename and namespace.
 321
 322 gdb_test "list ${srcfile}:foo::overloadfnarg(int)" "int foo::overloadfnarg.*}"
 323 gdb_test "list ${srcfile}:'foo::overloadfnarg(int)'" "int foo::overloadfnarg.*}"
 324
 325 # Now some tests to see how overloading and namespaces interact.
 326
 327 gdb_test "print overloadNamespace(1)" ".\[0-9\]* = 1"
 328 gdb_test "print overloadNamespace('a')" ".\[0-9\]* = 1"
 329 gdb_test "print overloadNamespace(dummyInstance)" ".\[0-9\]* = 2"
 330
 331 # Static methods.
 332 gdb_test "print K::staticoverload ()" " = 1"
 333 gdb_test "print K::staticoverload (2)" " = 2"
 334 gdb_test "print K::staticoverload (2, 3)" " = 5"
 335
 336 # Namespace-qualified functions.
 337 gdb_test "print N::nsoverload ()" " = 1"
 338 gdb_test "print N::nsoverload (2)" " = 2"
 339 gdb_test "print N::nsoverload (2, 3)" " = 5"
 340
 341 # Test "list function" when there are multiple "function" overloads.
 342
 343 with_test_prefix "list all overloads" {
 344     # Bump up listsize again, to make sure the number of lines to
 345     # display before/after each location is computed correctly.
 346     gdb_test_no_output "set listsize 10"
 347
 348     set line_bar_A [gdb_get_line_number "int bar (A)"]
 349     set line_bar_B [gdb_get_line_number "int bar (B)"]
 350     set lines1 [line_range_pattern [expr $line_bar_A - 5] [expr $line_bar_A + 4]]
 351     set lines2 [line_range_pattern [expr $line_bar_B - 5] [expr $line_bar_B + 4]]
 352
 353     set any "\[^\r\n\]*"
 354     set h1_re "file: \"${any}overload.cc\", line number: $line_bar_A, symbol: \"bar\\(A\\)\""
 355     set h2_re "file: \"${any}overload.cc\", line number: $line_bar_B, symbol: \"bar\\(B\\)\""
 356     gdb_test "list bar" "${h1_re}${lines1}\r\n${h2_re}${lines2}"
 357 }
 358
 359 if ![runto 'XXX::marker2'] then {
 360     perror "couldn't run to XXX::marker2"
 361     continue
 362 }
 363
 364 gdb_test "print overloadNamespace(1)" ".\[0-9\]* = 3" "print overloadNamespace(1) in XXX"
 365 gdb_test "print overloadNamespace('a')" ".\[0-9\]* = 3" "print overloadNamespace('a') in XXX"
 366 gdb_test "print overloadNamespace(dummyInstance)" ".\[0-9\]* = 2" "print overloadNamespace(dummyInstance) in XXX"
 367
 368 # One last mysterious test.
 369 # I wonder what this is for?
 370
 371 gdb_test "print intToChar(1)" "\\$\[0-9\]+ = 297"
 372
 373 # Test expression evaluation with overloaded methods
 374 gdb_test "print foo::overload1arg" \
 375     "non-unique member `overload1arg' requires type instantiation"
 376
 377 gdb_test "print foo::overload1arg(char***)" \
 378     "no member function matches that type instantiation"
 379
 380 gdb_test "print foo::overload1arg(void)" \
 381     "\\$$decimal = {int \\(foo \\*( const|)\\)} $hex <foo::overload1arg\\(\\)>"
 382
 383 foreach t [list char "signed char" "unsigned char" "short" \
 384                "unsigned short" int "unsigned int" long "unsigned long" \
 385                float double] {
 386     gdb_test "print foo::overload1arg($t)" \
 387         "\\$$decimal = {int \\(foo \\*( const|), $t\\)} $hex <foo::overload1arg\\($t\\)>"
 388 }