gdb/testsuite/gdb.mi/mi2-var-cmd.exp

   1 # Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2004, 2007, 2008, 2009
   2 # Free Software Foundation, Inc.
   3 #
   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 3 of the License, or
   7 # (at your option) any later version.
   8 #
   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.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 # Test essential Machine interface (MI) operations
  18 #
  19 # Verify that, using the MI, we can create, update, delete variables.
  20 #
  21
  22
  23 load_lib mi-support.exp
  24 set MIFLAGS "-i=mi2"
  25
  26 gdb_exit
  27 if [mi_gdb_start] {
  28     continue
  29 }
  30
  31 set testfile "var-cmd"
  32 set srcfile ${testfile}.c
  33 set binfile ${objdir}/${subdir}/mi2-var-cmd
  34 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DFAKEARGV}] != "" } {
  35     untested mi2-var-cmd.exp
  36     return -1
  37 }
  38
  39 mi_delete_breakpoints
  40 mi_gdb_reinitialize_dir $srcdir/$subdir
  41 mi_gdb_load ${binfile}
  42
  43
  44 #####                   #####
  45 #                           #
  46 #  Variable Creation tests  #
  47 #                           #
  48 #####                   #####
  49
  50 # Test:  c_variable-1.1
  51 # Desc:  Create global variable
  52
  53 mi_create_varobj "global_simple" "global_simple" "create global variable"
  54
  55 # Test: c_variable-1.2
  56 # Desc: Create non-existent variable
  57
  58 mi_gdb_test "112-var-create bogus_unknown_variable * bogus_unknown_variable" \
  59         "112\\^error,msg=\"mi_cmd_var_create: unable to create variable object\"" \
  60         "create non-existent variable"
  61
  62 # Test: c_variable-1.3
  63 # Desc: Create out of scope variable
  64
  65 mi_gdb_test "113-var-create argc * argc" \
  66         "113\\^error,msg=\"mi_cmd_var_create: unable to create variable object\"" \
  67         "create out of scope variable"
  68
  69 mi_runto do_locals_tests
  70
  71 set line_dlt_first_real [gdb_get_line_number "linteger = 1234;"]
  72
  73 mi_continue_to_line $line_dlt_first_real "step to real start of do_locals_test"
  74
  75
  76 # Test: c_variable-1.4
  77 # Desc: create local variables
  78
  79 mi_create_varobj_checked linteger linteger int "create local variable linteger"
  80
  81 mi_create_varobj_checked lpinteger lpinteger {int \*} "create local variable lpinteger"
  82
  83 mi_create_varobj_checked lcharacter lcharacter\[0\] char "create local variable lcharacter"
  84
  85 mi_create_varobj_checked lpcharacter lpcharacter {char \*} "create local variable lpcharacter"
  86
  87 mi_create_varobj_checked llong llong "long int" "create local variable llong"
  88
  89 mi_create_varobj_checked lplong lplong {long int \*} "create local variable lplong"
  90
  91 mi_create_varobj_checked lfloat lfloat float "create local variable lfloat"
  92
  93 mi_create_varobj_checked lpfloat lpfloat {float \*} "create local variable lpfloat"
  94
  95 mi_create_varobj_checked ldouble ldouble double "create local variable ldouble"
  96
  97 mi_create_varobj_checked lpdouble lpdouble {double \*} "create local variable lpdouble"
  98
  99 mi_create_varobj_checked lsimple lsimple "struct _simple_struct" "create local variable lsimple"
 100
 101 mi_create_varobj_checked lpsimple lpsimple {struct _simple_struct \*} "create local variable lpsimple"
 102
 103 mi_create_varobj_checked func func {void \(\*\)\((void|)\)} "create local variable func"
 104
 105 # Test: c_variable-1.5
 106 # Desc: create lsimple.character
 107 mi_create_varobj_checked lsimple.character lsimple.character "char" \
 108         "create lsimple.character"
 109
 110 # Test: c_variable-1.6
 111 # Desc: create lpsimple->integer
 112 mi_create_varobj_checked lsimple->integer lsimple->integer "int" \
 113         "create lsimple->integer"
 114
 115 # Test: c_variable-1.7
 116 # Desc: crate lsimple.integer
 117 mi_create_varobj_checked lsimple.integer lsimple.integer "int" \
 118         "create lsimple.integer"
 119
 120
 121 # Test: c_variable-1.9
 122 # Desc: create type name
 123 #    Type names (like int, long, etc..) are all proper expressions to gdb.
 124 #    make sure variable code does not allow users to create variables, though.
 125 mi_gdb_test "-var-create int * int" \
 126         "&\"Attempt to use a type name as an expression.\\\\n\".*\\^error,msg=\"mi_cmd_var_create: unable to create variable object\"" \
 127         "create int"
 128
 129 # The number 0 must be an invalid frame address and linteger a local variable.
 130 mi_gdb_test "-var-create invalidframe 0 linteger" \
 131         "\\^error,msg=\"Failed to find the specified frame\"" \
 132         "create variable with invalid FRAME-ADDR"
 133
 134
 135 #####             #####
 136 #                     #
 137 # Value changed tests #
 138 #                     #
 139 #####             #####
 140
 141 # Test: c_variable-2.1
 142 # Desc: check whether values changed at do_block_tests
 143 mi_gdb_test "-var-update *" \
 144         "\\^done,changelist=\\\[\\\]" \
 145         "update all vars"
 146
 147 # Step over "linteger = 1234;"
 148 set line_dlt_linteger [gdb_get_line_number "lpinteger = &linteger;"]
 149 mi_step_to "do_locals_tests" "" "var-cmd.c" $line_dlt_linteger "step at do_locals_test"
 150
 151 # Test: c_variable-2.2
 152 # Desc: check whether only linteger changed values
 153 mi_gdb_test "-var-update *" \
 154         "\\^done,changelist=\\\[\{name=\"linteger\",in_scope=\"true\",type_changed=\"false\"\}\\\]" \
 155         "update all vars: linteger changed"
 156
 157 # Step over "lpinteger = &linteger;"
 158 mi_step_to "do_locals_tests" "" "var-cmd.c" [expr $line_dlt_linteger + 1] "step at do_locals_tests (2)"
 159
 160 # Test: c_variable-2.3
 161 # Desc: check whether only lpinteger changed
 162 mi_gdb_test "-var-update *" \
 163         "\\^done,changelist=\\\[\{name=\"lpinteger\",in_scope=\"true\",type_changed=\"false\"\}\\\]" \
 164         "update all vars: lpinteger changed"
 165
 166 # Step over "lcharacter = 'a';"
 167 mi_step_to "do_locals_tests" "" "var-cmd.c" [expr $line_dlt_linteger + 2] "step at do_locals_tests (3)"
 168
 169 # Test: c_variable-2.4
 170 # Desc: check whether only lcharacter changed
 171 mi_gdb_test "-var-update *" \
 172         "\\^done,changelist=\\\[\{name=\"lcharacter\",in_scope=\"true\",type_changed=\"false\"\}\\\]" \
 173         "update all vars: lcharacter changed"
 174
 175 # Step over "lpcharacter = &lcharacter;"
 176 mi_step_to "do_locals_tests" "" "var-cmd.c" [expr $line_dlt_linteger + 3] "step at do_locals_tests (4)"
 177
 178 # Test: c_variable-2.5
 179 # Desc: check whether only lpcharacter changed
 180 mi_gdb_test "-var-update *" \
 181         "\\^done,changelist=\\\[\{name=\"lpcharacter\",in_scope=\"true\",type_changed=\"false\"\}\\\]" \
 182         "update all vars: lpcharacter changed"
 183
 184
 185 # Step over:
 186 #  llong = 2121L;
 187 #  lplong = &llong;
 188 #  lfloat = 2.1;
 189 #  lpfloat = &lfloat;
 190 #  ldouble = 2.718281828459045;
 191 #  lpdouble = &ldouble;
 192 #  lsimple.integer = 1234;
 193 #  lsimple.unsigned_integer = 255;
 194 #  lsimple.character = 'a';
 195
 196 mi_execute_to "exec-step 9" "end-stepping-range" "do_locals_tests" "" \
 197         "var-cmd.c" [expr $line_dlt_linteger + 12] "" "step at do_locals_tests (5)"
 198
 199 # Test: c_variable-2.6
 200 # Desc: check whether llong, lplong, lfloat, lpfloat, ldouble, lpdouble, lsimple.integer,
 201 #       lsimple.unsigned_character lsimple.integer lsimple.character changed
 202 mi_gdb_test "-var-update *" \
 203         "\\^done,changelist=\\\[\{name=\"lsimple.integer\",in_scope=\"true\",type_changed=\"false\"\},\{name=\"lsimple->integer\",in_scope=\"true\",type_changed=\"false\"\},\{name=\"lsimple.character\",in_scope=\"true\",type_changed=\"false\"\},\{name=\"lpdouble\",in_scope=\"true\",type_changed=\"false\"\},\{name=\"ldouble\",in_scope=\"true\",type_changed=\"false\"\},\{name=\"lpfloat\",in_scope=\"true\",type_changed=\"false\"\},\{name=\"lfloat\",in_scope=\"true\",type_changed=\"false\"\},\{name=\"lplong\",in_scope=\"true\",type_changed=\"false\"\},\{name=\"llong\",in_scope=\"true\",type_changed=\"false\"\}\\\]" \
 204         "update all vars: many changed"
 205
 206 # Step over:
 207 #  lsimple.signed_character = 21;
 208 #  lsimple.char_ptr = &lcharacter;
 209 #  lpsimple = &lsimple;
 210 #  func = nothing;
 211
 212 set line_dlt_4321 [gdb_get_line_number "linteger = 4321;"]
 213
 214 mi_execute_to "exec-step 4" "end-stepping-range" "do_locals_tests" "" \
 215         "var-cmd.c" $line_dlt_4321 "" "step at do_locals_tests (6)"
 216
 217 # Test: c_variable-2.7
 218 # Desc: check whether (lsimple.signed_character, lsimple.char_ptr) lpsimple, func changed
 219 mi_gdb_test "-var-update *" \
 220         "\\^done,changelist=\\\[\{name=\"func\",in_scope=\"true\",type_changed=\"false\"\},\{name=\"lpsimple\",in_scope=\"true\",type_changed=\"false\"\}\\\]" \
 221         "update all vars: func and lpsimple changed"
 222
 223 # Step over
 224 #  linteger = 4321;
 225 #  lcharacter = 'b';
 226 #  llong = 1212L;
 227 #  lfloat = 1.2;
 228 #  ldouble = 5.498548281828172;
 229 #  lsimple.integer = 255;
 230 #  lsimple.unsigned_integer = 4321;
 231 #  lsimple.character = 'b';
 232
 233 mi_execute_to "exec-step 8" "end-stepping-range" "do_locals_tests" "" \
 234         "var-cmd.c" [expr $line_dlt_4321 + 8] "" "step at do_locals_tests (7)"
 235
 236 # Test: c_variable-2.8
 237 # Desc: check whether linteger, lcharacter, llong, lfoat, ldouble, lsimple.integer,
 238 #       lpsimple.integer lsimple.character changed
 239 # Note: this test also checks that lpsimple->integer and lsimple.integer have
 240 #       changed (they are the same)
 241 mi_gdb_test "-var-update *" \
 242         "\\^done,changelist=\\\[\{name=\"lsimple.integer\",in_scope=\"true\",type_changed=\"false\"\},\{name=\"lsimple->integer\",in_scope=\"true\",type_changed=\"false\"\},\{name=\"lsimple.character\",in_scope=\"true\",type_changed=\"false\"\},\{name=\"ldouble\",in_scope=\"true\",type_changed=\"false\"\},\{name=\"lfloat\",in_scope=\"true\",type_changed=\"false\"\},\{name=\"llong\",in_scope=\"true\",type_changed=\"false\"\},\{name=\"lpcharacter\",in_scope=\"true\",type_changed=\"false\"\},\{name=\"lcharacter\",in_scope=\"true\",type_changed=\"false\"\},\{name=\"linteger\",in_scope=\"true\",type_changed=\"false\"\}\\\]" \
 243         "update all vars: lsimple and others changed"
 244
 245
 246 ###
 247 #
 248 # Test assignment to variables. More tests on assignment are in other files.
 249 #
 250 ###
 251 mi_gdb_test "-var-assign global_simple 0" \
 252         "\\^error,msg=\"mi_cmd_var_assign: Variable object is not editable\"" \
 253         "assign to global_simple"
 254
 255 mi_gdb_test "-var-assign linteger 3333" \
 256         "\\^done,value=\"3333\"" \
 257         "assign to linteger"
 258
 259 # Allow lpcharacter to update, optionally.  Because it points to a
 260 # char variable instead of a zero-terminated string, if linteger is
 261 # directly after it in memory the printed characters may appear to
 262 # change.
 263 set lpchar_update "\{name=\"lpcharacter\",in_scope=\"true\",type_changed=\"false\"\},"
 264 mi_gdb_test "-var-update *" \
 265         "\\^done,changelist=\\\[($lpchar_update)?\{name=\"linteger\",in_scope=\"true\",type_changed=\"false\"\}\\\]" \
 266         "update all vars: linteger changed after assign"
 267
 268 mi_gdb_test "-var-assign linteger 3333" \
 269         "\\^done,value=\"3333\"" \
 270         "assign to linteger again, same value"
 271
 272 mi_gdb_test "-var-update *" \
 273         "\\^done,changelist=\\\[\\\]" \
 274         "update all vars: linteger not changed after same assign"
 275
 276 mi_gdb_test "-var-evaluate-expression linteger" \
 277         "\\^done,value=\"3333\"" \
 278         "eval linteger"
 279
 280 mi_gdb_test "-var-assign lpinteger \"&linteger + 3\"" \
 281         "\\^done,value=\"$hex\"" \
 282         "assign to lpinteger"
 283
 284 mi_gdb_test "-var-update *" \
 285         "\\^done,changelist=\\\[\{name=\"lpinteger\",in_scope=\"true\",type_changed=\"false\"\}\\\]" \
 286         "update all vars: lpinteger changed after assign"
 287
 288 mi_gdb_test "-var-update *" \
 289         "\\^done,changelist=\\\[\\\]" \
 290         "update all vars: no changes on second update"
 291
 292 mi_gdb_test "-var-evaluate-expression lpinteger" \
 293         "\\^done,value=\"$hex\"" \
 294         "eval lpinteger"
 295
 296 # reset the values to the original ones so that the rest of the file doesn't suffer.
 297
 298 mi_gdb_test "-var-assign linteger 4321" \
 299         "\\^done,value=\"4321\"" \
 300         "assign to linteger"
 301
 302 mi_gdb_test "-var-assign lpinteger &linteger" \
 303         "\\^done,value=\"$hex\"" \
 304         "assign to lpinteger"
 305
 306 mi_gdb_test "-var-assign lcharacter 'z'" \
 307         "\\^done,value=\"122 'z'\"" \
 308         "assign to lcharacter"
 309
 310 mi_gdb_test "-var-evaluate-expression lcharacter" \
 311         "\\^done,value=\"122 'z'\"" \
 312         "eval lcharacter"
 313
 314 mi_gdb_test "-var-assign llong 1313L" \
 315         "\\^done,value=\"1313\"" \
 316         "assign to llong"
 317 mi_gdb_test "-var-evaluate-expression llong" \
 318         "\\^done,value=\"1313\"" \
 319         "eval llong"
 320 mi_gdb_test "-var-assign llong 1212L" \
 321         "\\^done,value=\"1212\"" \
 322         "assign to llong"
 323
 324 mi_gdb_test "-var-assign lplong &llong+4" \
 325         "\\^done,value=\"$hex\"" \
 326         "assign to lplong"
 327 mi_gdb_test "-var-evaluate-expression lplong" \
 328         "\\^done,value=\"$hex\"" \
 329         "eval lplong"
 330 mi_gdb_test "-var-assign lplong &llong" \
 331         "\\^done,value=\"$hex\"" \
 332         "assign to lplong"
 333
 334 mi_gdb_test "-var-assign lfloat 3.4567" \
 335         "\\^done,value=\"3.45.*\"" \
 336         "assign to lfloat"
 337 mi_gdb_test "-var-evaluate-expression lfloat" \
 338         "\\^done,value=\"3.45.*\"" \
 339         "eval lfloat"
 340 mi_gdb_test "-var-assign lfloat 1.2345" \
 341         "\\^done,value=\"1.23.*\"" \
 342         "assign to lfloat"
 343
 344 mi_gdb_test "-var-assign lpfloat &lfloat+4" \
 345         "\\^done,value=\"$hex\"" \
 346         "assign to lpfloat"
 347
 348 mi_gdb_test "-var-assign ldouble 5.333318284590435" \
 349         "\\^done,value=\"5.333318284590435\"" \
 350         "assign to ldouble"
 351
 352 mi_gdb_test "-var-assign func do_block_tests" \
 353         "\\^done,value=\"$hex <do_block_tests>\"" \
 354         "assign to func"
 355
 356 mi_gdb_test "-var-assign lsimple.character 'd'" \
 357         "\\^done,value=\"100 'd'\"" \
 358         "assign to lsimple.character"
 359
 360 mi_gdb_test "-var-assign  lsimple->integer 222" \
 361         "\\^done,value=\"222\"" \
 362         "assign to lsimple->integer"
 363
 364 mi_gdb_test "-var-assign lsimple.integer 333" \
 365         "\\^done,value=\"333\"" \
 366         "assign to lsimple.integer"
 367
 368 ######
 369 # End of assign tests
 370 #####
 371
 372 set line_subroutine1_body [gdb_get_line_number "global_simple.integer = i + 3;"]
 373
 374 mi_continue_to "subroutine1"
 375
 376 # Test: c_variable-2.10
 377 # Desc: create variable for locals i,l in subroutine1
 378 mi_create_varobj_checked i i int "create i"
 379
 380 mi_create_varobj_checked l l {long int \*} "create l"
 381
 382 # Test: c_variable-2.11
 383 # Desc: create do_locals_tests local in subroutine1
 384 mi_gdb_test "-var-create linteger * linteger" \
 385         "\\^error,msg=\"mi_cmd_var_create: unable to create variable object\"" \
 386         "create linteger"
 387
 388 mi_step_to "subroutine1" "\{name=\"i\",value=\".*\"\},\{name=\"l\",value=\".*\"\}" \
 389         "var-cmd.c" [expr $line_subroutine1_body + 1] "step at subroutine1"
 390
 391 # Test: c_variable-2.12
 392 # Desc: change global_simple.integer
 393 # Note: This also tests whether we are reporting changes in structs properly.
 394 #       gdb normally would say that global_simple has changed, but we
 395 #       special case that, since it is not what a human expects to
 396 #       see.
 397
 398 setup_xfail *-*-*
 399 mi_gdb_test "-var-update *" \
 400         "\\^done,changelist=\{FIXME: WHAT IS CORRECT HERE\}" \
 401         "update all vars: changed FIXME"
 402 clear_xfail *-*-*
 403
 404 mi_step_to "subroutine1" "\{name=\"i\",value=\".*\"\},\{name=\"l\",value=\".*\"\}" \
 405         "var-cmd.c" [expr $line_subroutine1_body + 2] "step at subroutine1 (2)"
 406
 407 # Test: c_variable-2.13
 408 # Desc: change subroutine1 local i
 409 mi_gdb_test "-var-update *" \
 410         "\\^done,changelist=\\\[\{name=\"i\",in_scope=\"true\",type_changed=\"false\"\}\\\]" \
 411         "update all vars: i changed"
 412
 413 mi_step_to "subroutine1" "\{name=\"i\",value=\".*\"\},\{name=\"l\",value=\".*\"\}" \
 414         "var-cmd.c" [expr $line_subroutine1_body + 3] "step at subroutine1 (3)"
 415
 416 # Test: c_variable-2.14
 417 # Desc: change do_locals_tests local llong
 418 mi_gdb_test "-var-update *" \
 419         "\\^done,changelist=\\\[\{name=\"llong\",in_scope=\"true\",type_changed=\"false\"\}\\\]" \
 420         "update all vars: llong changed"
 421
 422 set line_dlt_call_subroutine1 [gdb_get_line_number "subroutine1 (linteger, &llong);"]
 423 mi_next_to "do_locals_tests" "" "var-cmd.c" \
 424   [expr $line_dlt_call_subroutine1 + 1] "next out of subroutine1"
 425
 426 # Test: c_variable-2.15
 427 # Desc: check for out of scope subroutine1 locals
 428 mi_gdb_test "-var-update *" \
 429         "\\^done,changelist=\\\[\{name=\"l\",in_scope=\"false\"\,type_changed=\"false\"},\{name=\"i\",in_scope=\"false\",type_changed=\"false\"\}\\\]" \
 430         "update all vars: all now out of scope"
 431
 432 # Done with locals/globals tests. Erase all variables
 433 #delete_all_variables
 434 mi_gdb_test "-var-delete global_simple" \
 435         "\\^done,ndeleted=\"1\"" \
 436         "delete var"
 437
 438 mi_gdb_test "-var-delete linteger" \
 439         "\\^done,ndeleted=\"1\"" \
 440         "delete var linteger"
 441
 442 mi_gdb_test "-var-delete lpinteger" \
 443         "\\^done,ndeleted=\"1\"" \
 444         "delete var lpinteger"
 445
 446 mi_gdb_test "-var-delete lcharacter" \
 447         "\\^done,ndeleted=\"1\"" \
 448         "delete var lcharacter"
 449
 450 mi_gdb_test "-var-delete lpcharacter" \
 451         "\\^done,ndeleted=\"1\"" \
 452         "delete var lpcharacter"
 453
 454 mi_gdb_test "-var-delete llong" \
 455         "\\^done,ndeleted=\"1\"" \
 456         "delete var llong"
 457
 458 mi_gdb_test "-var-delete lplong" \
 459         "\\^done,ndeleted=\"1\"" \
 460         "delete var lplong"
 461
 462 mi_gdb_test "-var-delete lfloat" \
 463         "\\^done,ndeleted=\"1\"" \
 464         "delete var lfloat"
 465
 466 mi_gdb_test "-var-delete lpfloat" \
 467         "\\^done,ndeleted=\"1\"" \
 468         "delete var lpfloat"
 469
 470 mi_gdb_test "-var-delete ldouble" \
 471         "\\^done,ndeleted=\"1\"" \
 472         "delete var ldouble"
 473
 474 mi_gdb_test "-var-delete lpdouble" \
 475         "\\^done,ndeleted=\"1\"" \
 476         "delete var lpdouble"
 477
 478 mi_gdb_test "-var-delete lsimple" \
 479         "\\^done,ndeleted=\"1\"" \
 480         "delete var lsimple"
 481
 482 mi_gdb_test "-var-delete lpsimple" \
 483         "\\^done,ndeleted=\"1\"" \
 484         "delete var lpsimple"
 485
 486 mi_gdb_test "-var-delete func" \
 487         "\\^done,ndeleted=\"1\"" \
 488         "delete var func"
 489
 490 mi_gdb_test "-var-delete lsimple.character" \
 491         "\\^done,ndeleted=\"1\"" \
 492         "delete var lsimple.character"
 493
 494 mi_gdb_test "-var-delete  lsimple->integer" \
 495         "\\^done,ndeleted=\"1\"" \
 496         "delete var  lsimple->integer"
 497
 498 mi_gdb_test "-var-delete lsimple.integer" \
 499         "\\^done,ndeleted=\"1\"" \
 500         "delete var lsimple.integer"
 501
 502 mi_gdb_test "-var-delete i" \
 503         "\\^done,ndeleted=\"1\"" \
 504         "delete var i"
 505
 506 mi_gdb_test "-var-delete l" \
 507         "\\^done,ndeleted=\"1\"" \
 508         "delete var l"
 509
 510 # Test whether we can follow the name of a variable through multiple
 511 # stack frames.
 512 mi_continue_to do_special_tests
 513
 514 mi_gdb_test "-var-create selected_a @ a" \
 515   {\^done,name="selected_a",numchild="0",value=".*",type="int".*} \
 516   "create selected_a"
 517
 518 mi_continue_to incr_a
 519
 520 mi_gdb_test "-var-update selected_a" \
 521         "\\^done,changelist=\\\[\{name=\"selected_a\",in_scope=\"true\",type_changed=\"true\",new_type=\"char\",new_num_children=\"0\"\}\\\]" \
 522         "update selected_a in incr_a"
 523
 524 mi_next "step a line in incr_a"
 525 mi_next "return from incr_a to do_special_tests"
 526
 527 mi_gdb_test "-var-update selected_a" \
 528         "\\^done,changelist=\\\[\{name=\"selected_a\",in_scope=\"true\",type_changed=\"true\",new_type=\"int\",new_num_children=\"0\"\}\\\]" \
 529         "update selected_a in do_special_tests"
 530
 531 mi_gdb_test "-file-exec-and-symbols ${binfile}" "\\^done" \
 532             "floating varobj invalidation"
 533
 534
 535 mi_gdb_exit
 536 return 0