gdb/testsuite/gdb.compile/compile-cplus.exp

   1 # Copyright 2014-2020 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 load_lib compile-support.exp
  17
  18 standard_testfile .c compile-shlib.c compile-constvar.S compile-nodebug.c
  19
  20 get_compiler_info
  21 set options {}
  22 if { [test_compiler_info gcc*] || [test_compiler_info clang*] } {
  23     lappend options additional_flags=-g3
  24     lappend options additional_flags=-std=gnu++11
  25     lappend options c++
  26 }
  27 if [test_compiler_info clang*] {
  28     # Treating C input as C++ is deprecated in Clang, so
  29     # the build will fail without disabling -Wdeprecated.
  30     lappend options additional_flags=-Wno-deprecated
  31 }
  32
  33 if { ![istarget x86_64-*-* ] || ![is_lp64_target] } {
  34     verbose "Skipping x86_64 LOC_CONST test."
  35     set srcfile3 ""
  36 }
  37
  38 set srcfilesoptions [list ${srcfile} ${options}]
  39 if { $srcfile3 != "" } {
  40     lappend srcfilesoptions $srcfile3 ${options}
  41 }
  42 set srcfile4options "nodebug c++"
  43 if [test_compiler_info clang*] {
  44     # Treating C input as C++ is deprecated in Clang, so
  45     # the build will fail without disabling -Wdeprecated.
  46     set srcfile4options "$srcfile4options additional_flags=-Wno-deprecated"
  47 }
  48 lappend srcfilesoptions $srcfile4 $srcfile4options
  49 if { [eval build_executable_from_specs ${testfile}.exp $testfile {$options} ${srcfilesoptions}] } {
  50     return -1
  51 }
  52
  53 clean_restart ${testfile}
  54
  55 #
  56 # FIXME: Right now, for C++ we just duplicate the C tests, but force
  57 # the language to  C++
  58 #
  59 gdb_test_no_output "set language c++" \
  60     "Set language to C++"
  61
  62 if ![runto_main] {
  63     return -1
  64 }
  65
  66 if {[skip_compile_feature_tests]} {
  67     untested "compile command not supported (could not find libcc1 shared library?)"
  68     return -1
  69 }
  70
  71 #
  72 # Test delimiter for code, and arguments.
  73 #
  74
  75
  76 gdb_test_no_output "compile code globalvar = SOME_MACRO;" \
  77     "set variable from macro"
  78 gdb_test "p globalvar" " = 23" "expect 23"
  79
  80 gdb_test_no_output "compile code globalvar = ARG_MACRO(0, 0);" \
  81     "set variable from function-like macro"
  82 gdb_test "p globalvar" " = -1" "expect -1"
  83
  84 gdb_test_no_output "compile code globalvar = 42;" "set variable"
  85 gdb_test "p globalvar" " = 42" "expect 42"
  86
  87 gdb_test_no_output "compile code globalvar *= 2;" "modify variable"
  88 gdb_test "p globalvar" " = 84" "expect 84"
  89
  90 gdb_test_no_output "compile file -r ${srcdir}/${subdir}/${testfile}-mod.c" \
  91     "use external source file"
  92 gdb_test "p globalvar" " = 7" "expect 7"
  93
  94 gdb_test_no_output "compile code func_static (2);" "call static function"
  95 gdb_test "p globalvar" " = 9" "expect 9"
  96 gdb_test_no_output "compile code func_global (1);" "call global function"
  97 gdb_test "p globalvar" " = 8" "expect 8"
  98
  99 gdb_test_no_output \
 100     "compile code globalvar = (sizeof (ulonger) == sizeof (long))" \
 101     "compute size of ulonger"
 102 gdb_test "p globalvar" " = 1" "check size of ulonger"
 103 gdb_test_no_output \
 104     "compile code globalvar = (sizeof (longer) == sizeof (long))" \
 105     "compute size of longer"
 106 gdb_test "p globalvar" " = 1" "check size of longer"
 107 gdb_test_no_output "compile code globalvar = MINUS_1"
 108 gdb_test "p globalvar" " = -1" "check MINUS_1"
 109
 110 gdb_test_no_output "compile code globalvar = static_local"
 111 gdb_test "p globalvar" " = 77000" "check static_local"
 112
 113 gdb_test_no_output \
 114     "compile code static int staticvar = 5; intptr = &staticvar" \
 115     "do not keep jit in memory"
 116 gdb_test "p *intptr" "Cannot access memory at address 0x\[0-9a-f\]+" \
 117     "expect 5"
 118
 119 gdb_test "compile code func_doesnotexist ();" "error: \'func_doesnotexist\' was not declared in this scope.*"
 120
 121 gdb_test "compile code *(volatile int *) 0 = 0;" \
 122     "The program being debugged was signaled while in a function called from GDB\\.\r\nGDB remains in the frame where the signal was received\\.\r\n.*" \
 123     "compile code segfault first"
 124 gdb_test "bt" \
 125     "\r\n#0  \[^\r\n\]* in _gdb_expr \[^\r\n\]*\r\n#1  <function called from gdb>\r\n.*"
 126
 127 set test "p/x \$pc"
 128 set infcall_pc 0
 129 gdb_test_multiple $test $test {
 130     -re " = (0x\[0-9a-f\]+)\r\n$gdb_prompt $" {
 131         set infcall_pc $expect_out(1,string)
 132         pass $test
 133     }
 134 }
 135
 136 gdb_test "info sym $infcall_pc" "\r\n_gdb_expr.*" "info sym found"
 137 gdb_test "return" "\r\n#0  main .*" "return" \
 138          "Make _gdb_expr\\(__gdb_regs\\*\\) return now\\? \\(y or n\\) " "y"
 139 gdb_test "info sym $infcall_pc" "\r\nNo symbol matches .*" "info sym not found"
 140
 141 gdb_test_no_output "set unwindonsignal on"
 142 gdb_test "compile code *(volatile int *) 0 = 0;" \
 143     "The program being debugged was signaled while in a function called from GDB\\.\r\nGDB has restored the context to what it was before the call\\.\r\n.*" \
 144     "compile code segfault second"
 145
 146 gdb_breakpoint [gdb_get_line_number "break-here"]
 147 gdb_continue_to_breakpoint "break-here" ".* break-here .*"
 148
 149 # C++ Specific tests.
 150 ## Public methods and members
 151
 152 gdb_test "print foovar.public_var" "42" \
 153     "Test compile code foovar.public_var = 42 setting."
 154 gdb_test_no_output "compile code foovar.public_var = 43;" \
 155     "set foobar.public_var to 43"
 156 gdb_test "print foovar.public_var" "43" \
 157     "Test compile code foovar.public_var = 43 setting."
 158 gdb_test "print foovar.public_method ()" "43" \
 159     "Test compile code foovar.public_method  = 43 setting."
 160
 161 ## Private methods and members
 162 gdb_test_no_output "compile code foovar.set_private_var (84);" \
 163     "Call class function to set private_var"
 164 gdb_test "print foovar.private_var" "84" \
 165     "Test compile code foovar.set_private_var = 84 setting."
 166 gdb_test_no_output "compile code foovar.private_var = 85"  \
 167     "Directly set a private member in GDB compile5"
 168 gdb_test "print foovar.private_var" "85" \
 169     "Test compile code foovar.set_private_var = 85 setting."
 170
 171 ## Simple inheritance
 172 CompileExpression::new "var"
 173 CompileExpression::test "class Baz: public Foo {public: int z = 12;}; Baz bazvar; bazvar.z = 24; var = bazvar.z" 24 -explicit
 174 ## Multiple inheritance
 175 CompileExpression::test "class MI: public Base, public Base2 {int pure_virt () {return 42;}}; MI MIVar; var = MIVar.pure_virt();" 42 -explicit
 176 CompileExpression::test "class MI: public Base, public Base2 {int pure_virt () {return Base::return_value() + 42;}}; MI MIVar; var =  MIVar.pure_virt();" 43 -explicit
 177 CompileExpression::test "class Base3 {public: int z = 99;}; class MI: public Base, public Base3 {int pure_virt () {return Base3::z + 42;}}; MI MIVar; var = MIVar.pure_virt();" 141 -explicit
 178
 179 gdb_test "p localvar" " = 50" "expect localvar 50"
 180
 181 gdb_test_no_output "compile code localvar = 12;" "set localvar"
 182 gdb_test "p localvar" " = 12" "expect 12"
 183
 184 gdb_test_no_output "compile code localvar *= 2;" "modify localvar"
 185 gdb_test "p localvar" " = 24" "expect 24"
 186
 187 gdb_test_no_output "compile code localvar = shadowed" \
 188     "test shadowing"
 189 gdb_test "p localvar" " = 52" "expect 52"
 190
 191 gdb_test_no_output "compile code localvar = externed"
 192 gdb_test "p localvar" " = 7" "test extern in inner scope"
 193
 194 gdb_test_no_output "compile code vla\[2\] = 7"
 195 gdb_test "p vla\[2\]" " = 7"
 196 gdb_test_no_output \
 197     "compile code localvar = (sizeof (vla) == bound * sizeof (vla\[0\]))"
 198 gdb_test "p localvar" " = 1"
 199
 200 #
 201 # Test setting fields and also many different types.
 202 #
 203
 204 gdb_test_no_output "compile code struct_object.selffield = (struct_type*)&struct_object"
 205 gdb_test "print struct_object.selffield == &struct_object" " = true"
 206
 207 gdb_test_no_output "compile code struct_object.charfield = 1"
 208 gdb_test "print struct_object.charfield" " = 1 '\\\\001'"
 209 gdb_test_no_output "compile code struct_object.ucharfield = 1"
 210 gdb_test "print struct_object.ucharfield" " = 1 '\\\\001'"
 211
 212 foreach {field value} {
 213     shortfield -5
 214     ushortfield 5
 215     intfield -7
 216     uintfield 7
 217     bitfield 2
 218     longfield -9
 219     ulongfield 9
 220     enumfield ONE
 221     floatfield 1
 222     doublefield 2
 223 } {
 224     gdb_test_no_output "compile code struct_object.$field = $value"
 225     gdb_test "print struct_object.$field" " = $value"
 226 }
 227
 228 gdb_test_no_output "compile code struct_object.arrayfield\[2\] = 7"
 229 gdb_test "print struct_object.arrayfield" \
 230     " = \\{0, 0, 7, 0, 0\\}"
 231
 232 gdb_test_no_output "compile code struct_object.complexfield = 7 + 5i"
 233 gdb_test "print struct_object.complexfield" " = 7 \\+ 5i"
 234
 235 gdb_test_no_output "compile code struct_object.boolfield = 1"
 236 gdb_test "print struct_object.boolfield" " = true"
 237
 238 gdb_test_no_output "compile code struct_object.vectorfield\[2\] = 7"
 239 gdb_test "print struct_object.vectorfield" \
 240     " = \\{0, 0, 7, 0\\}"
 241
 242 gdb_test_no_output "compile code union_object.typedeffield = 7"
 243 gdb_test "print union_object.typedeffield" " = 7"
 244 gdb_test "print union_object.intfield" " = 7"
 245
 246
 247 # LOC_UNRESOLVED tests.
 248
 249 gdb_test "print unresolved" " = 20"
 250 gdb_test "compile code globalvar = unresolved;"
 251 gdb_test "print globalvar" " = 20" "print unresolved value"
 252
 253 # Test shadowing with global and static variables.
 254
 255 gdb_test_no_output "compile code globalshadow += 1;"
 256 gdb_test "print globalshadow" " = 101"
 257 gdb_test_no_output "compile code extern int globalshadow; globalshadow += 5;"
 258 gdb_test "print 'compile-cplus.c'::globalshadow" " = 15"
 259 gdb_test "print globalshadow" " = 101" "print globalshadow second time"
 260 gdb_test_no_output "compile code staticshadow += 2;"
 261 gdb_test "print staticshadow" " = 202"
 262 # "extern int staticshadow;" cannot access static variable.
 263
 264 # Raw code cannot refer to locals.
 265 # As it references global variable we need the #pragma.
 266 # For #pragma we need multiline input.
 267 gdb_test_multiple "compile code -r" "compile code -r multiline 1" { -re "\r\n>$" {} }
 268 gdb_test_multiple "void _gdb_expr(void) {" "compile code -r multiline 2" { -re "\r\n>$" {} }
 269 gdb_test_multiple "#pragma GCC push_user_expression" "compile code -r multiline 3" { -re "\r\n>$" {} }
 270 gdb_test_multiple "  globalshadow = 77000;" "compile code -r multiline 4" { -re "\r\n>$" {} }
 271 gdb_test_multiple "#pragma GCC pop_user_expression" "compile code -r multiline 5" { -re "\r\n>$" {} }
 272 gdb_test_multiple "}" "compile code -r multiline 6" { -re "\r\n>$" {} }
 273 gdb_test_no_output "end" "compile code -r multiline 7"
 274 gdb_test "print 'compile-cplus.c'::globalshadow" " = 77000" \
 275     "check globalshadow with -r"
 276
 277 # Test GOT vs. resolving jit function pointers.
 278
 279 gdb_test_no_output "compile -raw -- extern \"C\" void abort(); int func(){return 21;} void _gdb_expr(){int (*funcp)()=func; if (funcp()!=21) abort();}" \
 280     "pointer to jit function"
 281
 282 #
 283 # Test the case where the registers structure would not normally have
 284 # any fields.
 285 #
 286
 287 gdb_breakpoint [gdb_get_line_number "no_args_or_locals breakpoint"]
 288 gdb_continue_to_breakpoint "no_args_or_locals"
 289
 290 gdb_test_no_output "compile code globalvar = 77;" "set variable to 77"
 291 gdb_test "p globalvar" " = 77" "expect 77"
 292
 293
 294 # Test reference to minimal_symbol, not (full) symbol.
 295
 296 setup_kfail compile/23585 *-*-*
 297 gdb_test_no_output "compile code globalvar = func_nodebug (75);" \
 298     "call func_nodebug"
 299
 300 setup_kfail compile/23585 *-*-*
 301 gdb_test "p globalvar" " = -75" "expect -75"
 302
 303 setup_kfail compile/23585 *-*-*
 304 gdb_test_no_output \
 305   "compile code int (*funcp) (int) = (int(*)(int))func_nodebug; globalvar = funcp (76);" \
 306   "call func_nodebug indirectly"
 307 setup_kfail compile/23585 *-*-*
 308 gdb_test "p globalvar" " = -76" "expect -76"
 309
 310
 311 # Test compiled module memory protection.
 312
 313 gdb_test_no_output "set debug compile on"
 314 gdb_test "compile code static const int readonly = 1; *(int *) &readonly = 2;" \
 315     "The program being debugged was signaled while in a function called from GDB\\.\r\nGDB has restored the context to what it was before the call\\.\r\n.*"
 316 gdb_test_no_output "set debug compile off"
 317
 318
 319 #
 320 # Some simple coverage tests.
 321 #
 322
 323 gdb_test "show debug compile" "Compile debugging is .*"
 324 gdb_test "show compile-args" \
 325     "Compile command command-line arguments are .*"
 326 gdb_test "compile code -z" "Unknown argument.*"
 327
 328 gdb_test "set lang rust" \
 329     "Warning: the current language does not match this frame."
 330 gdb_test "compile code globalvar" "No compiler support for language rust\."
 331 gdb_test_no_output "set lang auto"
 332
 333 gdb_test_no_output "compile code union union_type newdecl_u"
 334 gdb_test_no_output "compile code struct struct_type newdecl_s"
 335 gdb_test_no_output "compile code inttypedef newdecl_i"
 336
 337 gdb_test "compile file" \
 338     "You must provide a filename for this command.*" \
 339     "Test compile file without a filename"
 340 gdb_test "compile file -r" \
 341     "You must provide a filename with the raw option set.*" \
 342     "Test compile file and raw option without a filename"
 343 gdb_test "compile file -z" \
 344     "Unknown argument.*" \
 345     "Test compile file with unknown argument"
 346
 347
 348 # LOC_CONST tests.
 349
 350 if { $srcfile3 != "" } {
 351     gdb_test "p constvar" " = 3"
 352     gdb_test "info addr constvar" {Symbol "constvar" is constant\.}
 353
 354     gdb_test_no_output "compile code globalvar = constvar;"
 355     gdb_test "print globalvar" " = 3" "print constvar value"
 356 } else {
 357     untested "print constvar value"
 358 }