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

   1 # Copyright 2014-2021 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
  28 if { ![istarget x86_64-*-* ] || ![is_lp64_target] } {
  29     verbose "Skipping x86_64 LOC_CONST test."
  30     set srcfile3 ""
  31 }
  32
  33 set srcfilesoptions [list ${srcfile} ${options}]
  34 if { $srcfile3 != "" } {
  35     lappend srcfilesoptions $srcfile3 {}
  36 }
  37 set srcfile4options "nodebug c++"
  38 lappend srcfilesoptions $srcfile4 $srcfile4options
  39 if { [eval build_executable_from_specs ${testfile}.exp $testfile {$options} ${srcfilesoptions}] } {
  40     return -1
  41 }
  42
  43 clean_restart ${testfile}
  44
  45 #
  46 # FIXME: Right now, for C++ we just duplicate the C tests, but force
  47 # the language to  C++
  48 #
  49 gdb_test_no_output "set language c++" \
  50     "Set language to C++"
  51
  52 if ![runto_main] {
  53     return -1
  54 }
  55
  56 if {[skip_compile_feature_tests]} {
  57     untested "compile command not supported (could not find libcc1 shared library?)"
  58     return -1
  59 }
  60
  61 #
  62 # Test delimiter for code, and arguments.
  63 #
  64
  65
  66 gdb_test_no_output "compile code globalvar = SOME_MACRO;" \
  67     "set variable from macro"
  68 gdb_test "p globalvar" " = 23" "expect 23"
  69
  70 gdb_test_no_output "compile code globalvar = ARG_MACRO(0, 0);" \
  71     "set variable from function-like macro"
  72 gdb_test "p globalvar" " = -1" "expect -1"
  73
  74 gdb_test_no_output "compile code globalvar = 42;" "set variable"
  75 gdb_test "p globalvar" " = 42" "expect 42"
  76
  77 gdb_test_no_output "compile code globalvar *= 2;" "modify variable"
  78 gdb_test "p globalvar" " = 84" "expect 84"
  79
  80 gdb_test_no_output "compile file -r ${srcdir}/${subdir}/${testfile}-mod.c" \
  81     "use external source file"
  82 gdb_test "p globalvar" " = 7" "expect 7"
  83
  84 gdb_test_no_output "compile code func_static (2);" "call static function"
  85 gdb_test "p globalvar" " = 9" "expect 9"
  86 gdb_test_no_output "compile code func_global (1);" "call global function"
  87 gdb_test "p globalvar" " = 8" "expect 8"
  88
  89 gdb_test_no_output \
  90     "compile code globalvar = (sizeof (ulonger) == sizeof (long))" \
  91     "compute size of ulonger"
  92 gdb_test "p globalvar" " = 1" "check size of ulonger"
  93 gdb_test_no_output \
  94     "compile code globalvar = (sizeof (longer) == sizeof (long))" \
  95     "compute size of longer"
  96 gdb_test "p globalvar" " = 1" "check size of longer"
  97 gdb_test_no_output "compile code globalvar = MINUS_1"
  98 gdb_test "p globalvar" " = -1" "check MINUS_1"
  99
 100 gdb_test_no_output "compile code globalvar = static_local"
 101 gdb_test "p globalvar" " = 77000" "check static_local"
 102
 103 gdb_test_no_output \
 104     "compile code static int staticvar = 5; intptr = &staticvar" \
 105     "do not keep jit in memory"
 106 gdb_test "p *intptr" "Cannot access memory at address 0x\[0-9a-f\]+" \
 107     "expect 5"
 108
 109 gdb_test "compile code func_doesnotexist ();" "error: \'func_doesnotexist\' was not declared in this scope.*"
 110
 111 gdb_test "compile code *(volatile int *) 0 = 0;" \
 112     "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.*" \
 113     "compile code segfault first"
 114 gdb_test "bt" \
 115     "\r\n#0  \[^\r\n\]* in _gdb_expr \[^\r\n\]*\r\n#1  <function called from gdb>\r\n.*"
 116
 117 set test "p/x \$pc"
 118 set infcall_pc 0
 119 gdb_test_multiple $test $test {
 120     -re " = (0x\[0-9a-f\]+)\r\n$gdb_prompt $" {
 121         set infcall_pc $expect_out(1,string)
 122         pass $test
 123     }
 124 }
 125
 126 gdb_test "info sym $infcall_pc" "\r\n_gdb_expr.*" "info sym found"
 127 gdb_test "return" "\r\n#0  main .*" "return" \
 128          "Make _gdb_expr\\(__gdb_regs\\*\\) return now\\? \\(y or n\\) " "y"
 129 gdb_test "info sym $infcall_pc" "\r\nNo symbol matches .*" "info sym not found"
 130
 131 gdb_test_no_output "set unwindonsignal on"
 132 gdb_test "compile code *(volatile int *) 0 = 0;" \
 133     "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.*" \
 134     "compile code segfault second"
 135
 136 gdb_breakpoint [gdb_get_line_number "break-here"]
 137 gdb_continue_to_breakpoint "break-here" ".* break-here .*"
 138
 139 # C++ Specific tests.
 140 ## Public methods and members
 141
 142 gdb_test "print foovar.public_var" "42" \
 143     "Test compile code foovar.public_var = 42 setting."
 144 gdb_test_no_output "compile code foovar.public_var = 43;" \
 145     "set foobar.public_var to 43"
 146 gdb_test "print foovar.public_var" "43" \
 147     "Test compile code foovar.public_var = 43 setting."
 148 gdb_test "print foovar.public_method ()" "43" \
 149     "Test compile code foovar.public_method  = 43 setting."
 150
 151 ## Private methods and members
 152 gdb_test_no_output "compile code foovar.set_private_var (84);" \
 153     "Call class function to set private_var"
 154 gdb_test "print foovar.private_var" "84" \
 155     "Test compile code foovar.set_private_var = 84 setting."
 156 gdb_test_no_output "compile code foovar.private_var = 85"  \
 157     "Directly set a private member in GDB compile5"
 158 gdb_test "print foovar.private_var" "85" \
 159     "Test compile code foovar.set_private_var = 85 setting."
 160
 161 ## Simple inheritance
 162 CompileExpression::new "var"
 163 CompileExpression::test "class Baz: public Foo {public: int z = 12;}; Baz bazvar; bazvar.z = 24; var = bazvar.z" 24 -explicit
 164 ## Multiple inheritance
 165 CompileExpression::test "class MI: public Base, public Base2 {int pure_virt () {return 42;}}; MI MIVar; var = MIVar.pure_virt();" 42 -explicit
 166 CompileExpression::test "class MI: public Base, public Base2 {int pure_virt () {return Base::return_value() + 42;}}; MI MIVar; var =  MIVar.pure_virt();" 43 -explicit
 167 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
 168
 169 gdb_test "p localvar" " = 50" "expect localvar 50"
 170
 171 gdb_test_no_output "compile code localvar = 12;" "set localvar"
 172 gdb_test "p localvar" " = 12" "expect 12"
 173
 174 gdb_test_no_output "compile code localvar *= 2;" "modify localvar"
 175 gdb_test "p localvar" " = 24" "expect 24"
 176
 177 gdb_test_no_output "compile code localvar = shadowed" \
 178     "test shadowing"
 179 gdb_test "p localvar" " = 52" "expect 52"
 180
 181 gdb_test_no_output "compile code localvar = externed"
 182 gdb_test "p localvar" " = 7" "test extern in inner scope"
 183
 184 gdb_test_no_output "compile code vla\[2\] = 7"
 185 gdb_test "p vla\[2\]" " = 7"
 186 gdb_test_no_output \
 187     "compile code localvar = (sizeof (vla) == bound * sizeof (vla\[0\]))"
 188 gdb_test "p localvar" " = 1"
 189
 190 #
 191 # Test setting fields and also many different types.
 192 #
 193
 194 gdb_test_no_output "compile code struct_object.selffield = (struct_type*)&struct_object"
 195 gdb_test "print struct_object.selffield == &struct_object" " = true"
 196
 197 gdb_test_no_output "compile code struct_object.charfield = 1"
 198 gdb_test "print struct_object.charfield" " = 1 '\\\\001'"
 199 gdb_test_no_output "compile code struct_object.ucharfield = 1"
 200 gdb_test "print struct_object.ucharfield" " = 1 '\\\\001'"
 201
 202 foreach {field value} {
 203     shortfield -5
 204     ushortfield 5
 205     intfield -7
 206     uintfield 7
 207     bitfield 2
 208     longfield -9
 209     ulongfield 9
 210     enumfield ONE
 211     floatfield 1
 212     doublefield 2
 213 } {
 214     gdb_test_no_output "compile code struct_object.$field = $value"
 215     gdb_test "print struct_object.$field" " = $value"
 216 }
 217
 218 gdb_test_no_output "compile code struct_object.arrayfield\[2\] = 7"
 219 gdb_test "print struct_object.arrayfield" \
 220     " = \\{0, 0, 7, 0, 0\\}"
 221
 222 gdb_test_no_output "compile code struct_object.complexfield = 7 + 5i"
 223 gdb_test "print struct_object.complexfield" " = 7 \\+ 5i"
 224
 225 gdb_test_no_output "compile code struct_object.boolfield = 1"
 226 gdb_test "print struct_object.boolfield" " = true"
 227
 228 gdb_test_no_output "compile code struct_object.vectorfield\[2\] = 7"
 229 gdb_test "print struct_object.vectorfield" \
 230     " = \\{0, 0, 7, 0\\}"
 231
 232 gdb_test_no_output "compile code union_object.typedeffield = 7"
 233 gdb_test "print union_object.typedeffield" " = 7"
 234 gdb_test "print union_object.intfield" " = 7"
 235
 236
 237 # LOC_UNRESOLVED tests.
 238
 239 gdb_test "print unresolved" " = 20"
 240 gdb_test "compile code globalvar = unresolved;"
 241 gdb_test "print globalvar" " = 20" "print unresolved value"
 242
 243 # Test shadowing with global and static variables.
 244
 245 gdb_test_no_output "compile code globalshadow += 1;"
 246 gdb_test "print globalshadow" " = 101"
 247 gdb_test_no_output "compile code extern int globalshadow; globalshadow += 5;"
 248 gdb_test "print 'compile-cplus.c'::globalshadow" " = 15"
 249 gdb_test "print globalshadow" " = 101" "print globalshadow second time"
 250 gdb_test_no_output "compile code staticshadow += 2;"
 251 gdb_test "print staticshadow" " = 202"
 252 # "extern int staticshadow;" cannot access static variable.
 253
 254 # Raw code cannot refer to locals.
 255 # As it references global variable we need the #pragma.
 256 # For #pragma we need multiline input.
 257 gdb_test_multiple "compile code -r" "compile code -r multiline 1" { -re "\r\n>$" {} }
 258 gdb_test_multiple "void _gdb_expr(void) {" "compile code -r multiline 2" { -re "\r\n>$" {} }
 259 gdb_test_multiple "#pragma GCC push_user_expression" "compile code -r multiline 3" { -re "\r\n>$" {} }
 260 gdb_test_multiple "  globalshadow = 77000;" "compile code -r multiline 4" { -re "\r\n>$" {} }
 261 gdb_test_multiple "#pragma GCC pop_user_expression" "compile code -r multiline 5" { -re "\r\n>$" {} }
 262 gdb_test_multiple "}" "compile code -r multiline 6" { -re "\r\n>$" {} }
 263 gdb_test_no_output "end" "compile code -r multiline 7"
 264 gdb_test "print 'compile-cplus.c'::globalshadow" " = 77000" \
 265     "check globalshadow with -r"
 266
 267 # Test GOT vs. resolving jit function pointers.
 268
 269 gdb_test_no_output "compile -raw -- extern \"C\" void abort(); int func(){return 21;} void _gdb_expr(){int (*funcp)()=func; if (funcp()!=21) abort();}" \
 270     "pointer to jit function"
 271
 272 #
 273 # Test the case where the registers structure would not normally have
 274 # any fields.
 275 #
 276
 277 gdb_breakpoint [gdb_get_line_number "no_args_or_locals breakpoint"]
 278 gdb_continue_to_breakpoint "no_args_or_locals"
 279
 280 gdb_test_no_output "compile code globalvar = 77;" "set variable to 77"
 281 gdb_test "p globalvar" " = 77" "expect 77"
 282
 283
 284 # Test reference to minimal_symbol, not (full) symbol.
 285
 286 setup_kfail compile/23585 *-*-*
 287 gdb_test_no_output "compile code globalvar = func_nodebug (75);" \
 288     "call func_nodebug"
 289
 290 setup_kfail compile/23585 *-*-*
 291 gdb_test "p globalvar" " = -75" "expect -75"
 292
 293 setup_kfail compile/23585 *-*-*
 294 gdb_test_no_output \
 295   "compile code int (*funcp) (int) = (int(*)(int))func_nodebug; globalvar = funcp (76);" \
 296   "call func_nodebug indirectly"
 297 setup_kfail compile/23585 *-*-*
 298 gdb_test "p globalvar" " = -76" "expect -76"
 299
 300
 301 # Test compiled module memory protection.
 302
 303 gdb_test_no_output "set debug compile on"
 304 gdb_test "compile code static const int readonly = 1; *(int *) &readonly = 2;" \
 305     "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.*"
 306 gdb_test_no_output "set debug compile off"
 307
 308
 309 #
 310 # Some simple coverage tests.
 311 #
 312
 313 gdb_test "show debug compile" "Compile debugging is .*"
 314 gdb_test "show compile-args" \
 315     "Compile command command-line arguments are .*"
 316 gdb_test "compile code -z" "Unknown argument.*"
 317
 318 gdb_test "set lang rust" \
 319     "Warning: the current language does not match this frame."
 320 gdb_test "compile code globalvar" "No compiler support for language rust\."
 321 gdb_test_no_output "set lang auto"
 322
 323 gdb_test_no_output "compile code union union_type newdecl_u"
 324 gdb_test_no_output "compile code struct struct_type newdecl_s"
 325 gdb_test_no_output "compile code inttypedef newdecl_i"
 326
 327 gdb_test "compile file" \
 328     "You must provide a filename for this command.*" \
 329     "Test compile file without a filename"
 330 gdb_test "compile file -r" \
 331     "You must provide a filename with the raw option set.*" \
 332     "Test compile file and raw option without a filename"
 333 gdb_test "compile file -z" \
 334     "Unknown argument.*" \
 335     "Test compile file with unknown argument"
 336
 337
 338 # LOC_CONST tests.
 339
 340 if { $srcfile3 != "" } {
 341     gdb_test "p constvar" " = 3"
 342     gdb_test "info addr constvar" {Symbol "constvar" is constant\.}
 343
 344     gdb_test_no_output "compile code globalvar = constvar;"
 345     gdb_test "print globalvar" " = 3" "print constvar value"
 346 } else {
 347     untested "print constvar value"
 348 }