gdb/mi/mi-cmd-var.c

   1 /* MI Command Set - varobj commands.
   2
   3    Copyright (C) 2000, 2002, 2004, 2005, 2007, 2008, 2009
   4    Free Software Foundation, Inc.
   5
   6    Contributed by Cygnus Solutions (a Red Hat company).
   7
   8    This file is part of GDB.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 3 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  22
  23 #include "defs.h"
  24 #include "mi-cmds.h"
  25 #include "ui-out.h"
  26 #include "mi-out.h"
  27 #include "varobj.h"
  28 #include "value.h"
  29 #include <ctype.h>
  30 #include "gdb_string.h"
  31 #include "mi-getopt.h"
  32 #include "gdbthread.h"
  33
  34 const char mi_no_values[] = "--no-values";
  35 const char mi_simple_values[] = "--simple-values";
  36 const char mi_all_values[] = "--all-values";
  37
  38 extern int varobjdebug;         /* defined in varobj.c.  */
  39
  40 static void varobj_update_one (struct varobj *var,
  41                               enum print_values print_values,
  42                               int explicit);
  43
  44 static int mi_print_value_p (struct type *type, enum print_values print_values);
  45
  46 /* Print variable object VAR.  The PRINT_VALUES parameter controls
  47    if the value should be printed.  The PRINT_EXPRESSION parameter
  48    controls if the expression should be printed.  */
  49 static void
  50 print_varobj (struct varobj *var, enum print_values print_values,
  51               int print_expression)
  52 {
  53   struct type *gdb_type;
  54   char *type;
  55   int thread_id;
  56
  57   ui_out_field_string (uiout, "name", varobj_get_objname (var));
  58   if (print_expression)
  59     ui_out_field_string (uiout, "exp", varobj_get_expression (var));
  60   ui_out_field_int (uiout, "numchild", varobj_get_num_children (var));
  61
  62   if (mi_print_value_p (varobj_get_gdb_type (var), print_values))
  63     ui_out_field_string (uiout, "value", varobj_get_value (var));
  64
  65   type = varobj_get_type (var);
  66   if (type != NULL)
  67     {
  68       ui_out_field_string (uiout, "type", type);
  69       xfree (type);
  70     }
  71
  72   thread_id = varobj_get_thread_id (var);
  73   if (thread_id > 0)
  74     ui_out_field_int (uiout, "thread-id", thread_id);
  75
  76   if (varobj_get_frozen (var))
  77     ui_out_field_int (uiout, "frozen", 1);
  78 }
  79
  80 /* VAROBJ operations */
  81
  82 void
  83 mi_cmd_var_create (char *command, char **argv, int argc)
  84 {
  85   CORE_ADDR frameaddr = 0;
  86   struct varobj *var;
  87   char *name;
  88   char *frame;
  89   char *expr;
  90   struct cleanup *old_cleanups;
  91   enum varobj_type var_type;
  92
  93   if (argc != 3)
  94     {
  95       /* mi_error_message = xstrprintf ("mi_cmd_var_create: Usage:
  96          ...."); return MI_CMD_ERROR; */
  97       error (_("mi_cmd_var_create: Usage: NAME FRAME EXPRESSION."));
  98     }
  99
 100   name = xstrdup (argv[0]);
 101   /* Add cleanup for name. Must be free_current_contents as
 102      name can be reallocated */
 103   old_cleanups = make_cleanup (free_current_contents, &name);
 104
 105   frame = xstrdup (argv[1]);
 106   make_cleanup (xfree, frame);
 107
 108   expr = xstrdup (argv[2]);
 109   make_cleanup (xfree, expr);
 110
 111   if (strcmp (name, "-") == 0)
 112     {
 113       xfree (name);
 114       name = varobj_gen_name ();
 115     }
 116   else if (!isalpha (*name))
 117     error (_("mi_cmd_var_create: name of object must begin with a letter"));
 118
 119   if (strcmp (frame, "*") == 0)
 120     var_type = USE_CURRENT_FRAME;
 121   else if (strcmp (frame, "@") == 0)
 122     var_type = USE_SELECTED_FRAME;
 123   else
 124     {
 125       var_type = USE_SPECIFIED_FRAME;
 126       frameaddr = string_to_core_addr (frame);
 127     }
 128
 129   if (varobjdebug)
 130     fprintf_unfiltered (gdb_stdlog,
 131                     "Name=\"%s\", Frame=\"%s\" (0x%s), Expression=\"%s\"\n",
 132                         name, frame, paddr (frameaddr), expr);
 133
 134   var = varobj_create (name, expr, frameaddr, var_type);
 135
 136   if (var == NULL)
 137     error (_("mi_cmd_var_create: unable to create variable object"));
 138
 139   print_varobj (var, PRINT_ALL_VALUES, 0 /* don't print expression */);
 140
 141   do_cleanups (old_cleanups);
 142 }
 143
 144 void
 145 mi_cmd_var_delete (char *command, char **argv, int argc)
 146 {
 147   char *name;
 148   struct varobj *var;
 149   int numdel;
 150   int children_only_p = 0;
 151   struct cleanup *old_cleanups;
 152
 153   if (argc < 1 || argc > 2)
 154     error (_("mi_cmd_var_delete: Usage: [-c] EXPRESSION."));
 155
 156   name = xstrdup (argv[0]);
 157   /* Add cleanup for name. Must be free_current_contents as
 158      name can be reallocated */
 159   old_cleanups = make_cleanup (free_current_contents, &name);
 160
 161   /* If we have one single argument it cannot be '-c' or any string
 162      starting with '-'. */
 163   if (argc == 1)
 164     {
 165       if (strcmp (name, "-c") == 0)
 166         error (_("mi_cmd_var_delete: Missing required argument after '-c': variable object name"));
 167       if (*name == '-')
 168         error (_("mi_cmd_var_delete: Illegal variable object name"));
 169     }
 170
 171   /* If we have 2 arguments they must be '-c' followed by a string
 172      which would be the variable name. */
 173   if (argc == 2)
 174     {
 175       if (strcmp (name, "-c") != 0)
 176         error (_("mi_cmd_var_delete: Invalid option."));
 177       children_only_p = 1;
 178       do_cleanups (old_cleanups);
 179       name = xstrdup (argv[1]);
 180       make_cleanup (free_current_contents, &name);
 181     }
 182
 183   /* If we didn't error out, now NAME contains the name of the
 184      variable. */
 185
 186   var = varobj_get_handle (name);
 187
 188   numdel = varobj_delete (var, NULL, children_only_p);
 189
 190   ui_out_field_int (uiout, "ndeleted", numdel);
 191
 192   do_cleanups (old_cleanups);
 193 }
 194
 195 /* Parse a string argument into a format value.  */
 196
 197 static enum varobj_display_formats
 198 mi_parse_format (const char *arg)
 199 {
 200   if (arg != NULL)
 201     {
 202       int len;
 203
 204       len = strlen (arg);
 205
 206       if (strncmp (arg, "natural", len) == 0)
 207         return FORMAT_NATURAL;
 208       else if (strncmp (arg, "binary", len) == 0)
 209         return FORMAT_BINARY;
 210       else if (strncmp (arg, "decimal", len) == 0)
 211         return FORMAT_DECIMAL;
 212       else if (strncmp (arg, "hexadecimal", len) == 0)
 213         return FORMAT_HEXADECIMAL;
 214       else if (strncmp (arg, "octal", len) == 0)
 215         return FORMAT_OCTAL;
 216     }
 217
 218   error (_("Must specify the format as: \"natural\", \"binary\", \"decimal\", \"hexadecimal\", or \"octal\""));
 219 }
 220
 221 void
 222 mi_cmd_var_set_format (char *command, char **argv, int argc)
 223 {
 224   enum varobj_display_formats format;
 225   struct varobj *var;
 226
 227   if (argc != 2)
 228     error (_("mi_cmd_var_set_format: Usage: NAME FORMAT."));
 229
 230   /* Get varobj handle, if a valid var obj name was specified */
 231   var = varobj_get_handle (argv[0]);
 232
 233   format = mi_parse_format (argv[1]);
 234
 235   /* Set the format of VAR to given format */
 236   varobj_set_display_format (var, format);
 237
 238   /* Report the new current format */
 239   ui_out_field_string (uiout, "format", varobj_format_string[(int) format]);
 240
 241   /* Report the value in the new format */
 242   ui_out_field_string (uiout, "value", varobj_get_value (var));
 243 }
 244
 245 void
 246 mi_cmd_var_set_visualizer (char *command, char **argv, int argc)
 247 {
 248   struct varobj *var;
 249
 250   if (argc != 2)
 251     error ("Usage: NAME VISUALIZER_FUNCTION.");
 252
 253   var = varobj_get_handle (argv[0]);
 254
 255   if (var == NULL)
 256     error ("Variable object not found");
 257
 258   varobj_set_visualizer (var, argv[1]);
 259 }
 260
 261 void
 262 mi_cmd_var_set_frozen (char *command, char **argv, int argc)
 263 {
 264   struct varobj *var;
 265   int frozen;
 266
 267   if (argc != 2)
 268     error (_("-var-set-format: Usage: NAME FROZEN_FLAG."));
 269
 270   var = varobj_get_handle (argv[0]);
 271
 272   if (strcmp (argv[1], "0") == 0)
 273     frozen = 0;
 274   else if (strcmp (argv[1], "1") == 0)
 275     frozen = 1;
 276   else
 277     error (_("Invalid flag value"));
 278
 279   varobj_set_frozen (var, frozen);
 280
 281   /* We don't automatically return the new value, or what varobjs got new
 282      values during unfreezing.  If this information is required, client
 283      should call -var-update explicitly.  */
 284 }
 285
 286
 287 void
 288 mi_cmd_var_show_format (char *command, char **argv, int argc)
 289 {
 290   enum varobj_display_formats format;
 291   struct varobj *var;
 292
 293   if (argc != 1)
 294     error (_("mi_cmd_var_show_format: Usage: NAME."));
 295
 296   /* Get varobj handle, if a valid var obj name was specified */
 297   var = varobj_get_handle (argv[0]);
 298
 299   format = varobj_get_display_format (var);
 300
 301   /* Report the current format */
 302   ui_out_field_string (uiout, "format", varobj_format_string[(int) format]);
 303 }
 304
 305 void
 306 mi_cmd_var_info_num_children (char *command, char **argv, int argc)
 307 {
 308   struct varobj *var;
 309
 310   if (argc != 1)
 311     error (_("mi_cmd_var_info_num_children: Usage: NAME."));
 312
 313   /* Get varobj handle, if a valid var obj name was specified */
 314   var = varobj_get_handle (argv[0]);
 315
 316   ui_out_field_int (uiout, "numchild", varobj_get_num_children (var));
 317 }
 318
 319 /* Parse a string argument into a print_values value.  */
 320
 321 static enum print_values
 322 mi_parse_values_option (const char *arg)
 323 {
 324   if (strcmp (arg, "0") == 0
 325       || strcmp (arg, mi_no_values) == 0)
 326     return PRINT_NO_VALUES;
 327   else if (strcmp (arg, "1") == 0
 328            || strcmp (arg, mi_all_values) == 0)
 329     return PRINT_ALL_VALUES;
 330   else if (strcmp (arg, "2") == 0
 331            || strcmp (arg, mi_simple_values) == 0)
 332     return PRINT_SIMPLE_VALUES;
 333   else
 334     error (_("Unknown value for PRINT_VALUES\n\
 335 Must be: 0 or \"%s\", 1 or \"%s\", 2 or \"%s\""),
 336            mi_no_values, mi_simple_values, mi_all_values);
 337 }
 338
 339 /* Return 1 if given the argument PRINT_VALUES we should display
 340    a value of type TYPE.  */
 341
 342 static int
 343 mi_print_value_p (struct type *type, enum print_values print_values)
 344 {
 345
 346   if (print_values == PRINT_NO_VALUES)
 347     return 0;
 348
 349   if (print_values == PRINT_ALL_VALUES)
 350     return 1;
 351
 352   if (type == NULL)
 353     return 1;
 354   else
 355     {
 356       type = check_typedef (type);
 357
 358       /* For PRINT_SIMPLE_VALUES, only print the value if it has a type
 359          and that type is not a compound type.  */
 360       return (TYPE_CODE (type) != TYPE_CODE_ARRAY
 361               && TYPE_CODE (type) != TYPE_CODE_STRUCT
 362               && TYPE_CODE (type) != TYPE_CODE_UNION);
 363     }
 364 }
 365
 366 void
 367 mi_cmd_var_list_children (char *command, char **argv, int argc)
 368 {
 369   struct varobj *var;
 370   VEC(varobj_p) *children;
 371   struct varobj *child;
 372   struct cleanup *cleanup_children;
 373   int numchild;
 374   enum print_values print_values;
 375   int ix;
 376   char *display_hint;
 377
 378   if (argc != 1 && argc != 2)
 379     error (_("mi_cmd_var_list_children: Usage: [PRINT_VALUES] NAME"));
 380
 381   /* Get varobj handle, if a valid var obj name was specified */
 382   if (argc == 1)
 383     var = varobj_get_handle (argv[0]);
 384   else
 385     var = varobj_get_handle (argv[1]);
 386
 387   children = varobj_list_children (var);
 388   ui_out_field_int (uiout, "numchild", VEC_length (varobj_p, children));
 389   if (argc == 2)
 390     print_values = mi_parse_values_option (argv[0]);
 391   else
 392     print_values = PRINT_NO_VALUES;
 393
 394   display_hint = varobj_get_display_hint (var);
 395   if (display_hint)
 396     {
 397       ui_out_field_string (uiout, "displayhint", display_hint);
 398       xfree (display_hint);
 399     }
 400
 401   if (VEC_length (varobj_p, children) == 0)
 402     return;
 403
 404   if (mi_version (uiout) == 1)
 405     cleanup_children = make_cleanup_ui_out_tuple_begin_end (uiout, "children");
 406   else
 407     cleanup_children = make_cleanup_ui_out_list_begin_end (uiout, "children");
 408   for (ix = 0; VEC_iterate (varobj_p, children, ix, child); ++ix)
 409     {
 410       struct cleanup *cleanup_child;
 411       cleanup_child = make_cleanup_ui_out_tuple_begin_end (uiout, "child");
 412       print_varobj (child, print_values, 1 /* print expression */);
 413       do_cleanups (cleanup_child);
 414     }
 415   do_cleanups (cleanup_children);
 416 }
 417
 418 void
 419 mi_cmd_var_info_type (char *command, char **argv, int argc)
 420 {
 421   struct varobj *var;
 422
 423   if (argc != 1)
 424     error (_("mi_cmd_var_info_type: Usage: NAME."));
 425
 426   /* Get varobj handle, if a valid var obj name was specified */
 427   var = varobj_get_handle (argv[0]);
 428
 429   ui_out_field_string (uiout, "type", varobj_get_type (var));
 430 }
 431
 432 void
 433 mi_cmd_var_info_path_expression (char *command, char **argv, int argc)
 434 {
 435   struct varobj *var;
 436   char *path_expr;
 437
 438   if (argc != 1)
 439     error (_("Usage: NAME."));
 440
 441   /* Get varobj handle, if a valid var obj name was specified.  */
 442   var = varobj_get_handle (argv[0]);
 443
 444   path_expr = varobj_get_path_expr (var);
 445
 446   ui_out_field_string (uiout, "path_expr", path_expr);
 447 }
 448
 449 void
 450 mi_cmd_var_info_expression (char *command, char **argv, int argc)
 451 {
 452   enum varobj_languages lang;
 453   struct varobj *var;
 454
 455   if (argc != 1)
 456     error (_("mi_cmd_var_info_expression: Usage: NAME."));
 457
 458   /* Get varobj handle, if a valid var obj name was specified */
 459   var = varobj_get_handle (argv[0]);
 460
 461   lang = varobj_get_language (var);
 462
 463   ui_out_field_string (uiout, "lang", varobj_language_string[(int) lang]);
 464   ui_out_field_string (uiout, "exp", varobj_get_expression (var));
 465 }
 466
 467 void
 468 mi_cmd_var_show_attributes (char *command, char **argv, int argc)
 469 {
 470   int attr;
 471   char *attstr;
 472   struct varobj *var;
 473
 474   if (argc != 1)
 475     error (_("mi_cmd_var_show_attributes: Usage: NAME."));
 476
 477   /* Get varobj handle, if a valid var obj name was specified */
 478   var = varobj_get_handle (argv[0]);
 479
 480   attr = varobj_get_attributes (var);
 481   /* FIXME: define masks for attributes */
 482   if (attr & 0x00000001)
 483     attstr = "editable";
 484   else
 485     attstr = "noneditable";
 486
 487   ui_out_field_string (uiout, "attr", attstr);
 488 }
 489
 490 void
 491 mi_cmd_var_evaluate_expression (char *command, char **argv, int argc)
 492 {
 493   struct varobj *var;
 494
 495   enum varobj_display_formats format;
 496   int formatFound;
 497   int optind;
 498   char *optarg;
 499
 500   enum opt
 501     {
 502       OP_FORMAT
 503     };
 504   static struct mi_opt opts[] =
 505   {
 506     {"f", OP_FORMAT, 1},
 507     { 0, 0, 0 }
 508   };
 509
 510   /* Parse arguments */
 511   format = FORMAT_NATURAL;
 512   formatFound = 0;
 513   optind = 0;
 514   while (1)
 515     {
 516       int opt = mi_getopt ("-var-evaluate-expression", argc, argv, opts, &optind, &optarg);
 517       if (opt < 0)
 518         break;
 519       switch ((enum opt) opt)
 520       {
 521         case OP_FORMAT:
 522           if (formatFound)
 523             error (_("Cannot specify format more than once"));
 524
 525           format = mi_parse_format (optarg);
 526           formatFound = 1;
 527           break;
 528       }
 529     }
 530
 531   if (optind >= argc)
 532     error (_("Usage: [-f FORMAT] NAME"));
 533
 534   if (optind < argc - 1)
 535     error (_("Garbage at end of command"));
 536
 537      /* Get varobj handle, if a valid var obj name was specified */
 538   var = varobj_get_handle (argv[optind]);
 539
 540   if (formatFound)
 541     ui_out_field_string (uiout, "value", varobj_get_formatted_value (var, format));
 542   else
 543     ui_out_field_string (uiout, "value", varobj_get_value (var));
 544 }
 545
 546 void
 547 mi_cmd_var_assign (char *command, char **argv, int argc)
 548 {
 549   struct varobj *var;
 550   char *expression;
 551
 552   if (argc != 2)
 553     error (_("mi_cmd_var_assign: Usage: NAME EXPRESSION."));
 554
 555   /* Get varobj handle, if a valid var obj name was specified */
 556   var = varobj_get_handle (argv[0]);
 557
 558   if (!varobj_editable_p (var))
 559     error (_("mi_cmd_var_assign: Variable object is not editable"));
 560
 561   expression = xstrdup (argv[1]);
 562
 563   if (!varobj_set_value (var, expression))
 564     error (_("mi_cmd_var_assign: Could not assign expression to variable object"));
 565
 566   ui_out_field_string (uiout, "value", varobj_get_value (var));
 567 }
 568
 569 void
 570 mi_cmd_var_update (char *command, char **argv, int argc)
 571 {
 572   struct varobj *var;
 573   struct varobj **rootlist;
 574   struct varobj **cr;
 575   struct cleanup *cleanup;
 576   char *name;
 577   int nv;
 578   enum print_values print_values;
 579
 580   if (argc != 1 && argc != 2)
 581     error (_("mi_cmd_var_update: Usage: [PRINT_VALUES] NAME."));
 582
 583   if (argc == 1)
 584     name = argv[0];
 585   else
 586     name = (argv[1]);
 587
 588   if (argc == 2)
 589     print_values = mi_parse_values_option (argv[0]);
 590   else
 591     print_values = PRINT_NO_VALUES;
 592
 593   /* Check if the parameter is a "*" which means that we want
 594      to update all variables */
 595
 596   if ((*name == '*' || *name == '@') && (*(name + 1) == '\0'))
 597     {
 598       nv = varobj_list (&rootlist);
 599       cleanup = make_cleanup (xfree, rootlist);
 600       if (mi_version (uiout) <= 1)
 601         make_cleanup_ui_out_tuple_begin_end (uiout, "changelist");
 602       else
 603         make_cleanup_ui_out_list_begin_end (uiout, "changelist");
 604       if (nv <= 0)
 605         {
 606           do_cleanups (cleanup);
 607           return;
 608         }
 609       cr = rootlist;
 610       while (*cr != NULL)
 611         {
 612           int thread_id = varobj_get_thread_id (*cr);
 613           int thread_stopped = 0;
 614           if (thread_id == -1 && is_stopped (inferior_ptid))
 615             thread_stopped = 1;
 616           else
 617             {
 618               struct thread_info *tp = find_thread_id (thread_id);
 619               if (tp)
 620                 thread_stopped = is_stopped (tp->ptid);
 621               else
 622                 thread_stopped = 1;
 623             }
 624           if (thread_stopped)
 625             if (*name == '*' || varobj_floating_p (*cr))
 626               varobj_update_one (*cr, print_values, 0 /* implicit */);
 627           cr++;
 628         }
 629       do_cleanups (cleanup);
 630     }
 631   else
 632     {
 633       /* Get varobj handle, if a valid var obj name was specified */
 634       var = varobj_get_handle (name);
 635
 636       if (mi_version (uiout) <= 1)
 637         cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, "changelist");
 638       else
 639         cleanup = make_cleanup_ui_out_list_begin_end (uiout, "changelist");
 640       varobj_update_one (var, print_values, 1 /* explicit */);
 641       do_cleanups (cleanup);
 642     }
 643 }
 644
 645 /* Helper for mi_cmd_var_update().  */
 646
 647 static void
 648 varobj_update_one (struct varobj *var, enum print_values print_values,
 649                    int explicit)
 650 {
 651   struct varobj **cc;
 652   struct cleanup *cleanup = NULL;
 653   VEC (varobj_update_result) *changes;
 654   varobj_update_result *r;
 655   int i;
 656
 657   changes = varobj_update (&var, explicit);
 658
 659   for (i = 0; VEC_iterate (varobj_update_result, changes, i, r); ++i)
 660     {
 661       char *display_hint;
 662
 663       if (mi_version (uiout) > 1)
 664         cleanup = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
 665       ui_out_field_string (uiout, "name", varobj_get_objname (r->varobj));
 666
 667       switch (r->status)
 668         {
 669         case VAROBJ_IN_SCOPE:
 670           if (mi_print_value_p (varobj_get_gdb_type (r->varobj), print_values))
 671             ui_out_field_string (uiout, "value", varobj_get_value (r->varobj));
 672           ui_out_field_string (uiout, "in_scope", "true");
 673           break;
 674         case VAROBJ_NOT_IN_SCOPE:
 675           ui_out_field_string (uiout, "in_scope", "false");
 676           break;
 677         case VAROBJ_INVALID:
 678           ui_out_field_string (uiout, "in_scope", "invalid");
 679           break;
 680         }
 681
 682       if (r->status != VAROBJ_INVALID)
 683         {
 684           if (r->type_changed)
 685             ui_out_field_string (uiout, "type_changed", "true");
 686           else
 687             ui_out_field_string (uiout, "type_changed", "false");
 688         }
 689
 690       if (r->type_changed)
 691         {
 692           ui_out_field_string (uiout, "new_type", varobj_get_type (r->varobj));
 693           ui_out_field_int (uiout, "new_num_children",
 694                             varobj_get_num_children (r->varobj));
 695         }
 696
 697       display_hint = varobj_get_display_hint (var);
 698       if (display_hint)
 699         {
 700           ui_out_field_string (uiout, "displayhint", display_hint);
 701           xfree (display_hint);
 702         }
 703
 704       if (r->children_changed)
 705         {
 706           int ix;
 707           struct varobj *child;
 708           struct cleanup *cleanup =
 709             make_cleanup_ui_out_list_begin_end (uiout, "children");
 710
 711           VEC (varobj_p)* children = varobj_list_children (r->varobj);
 712
 713           for (ix = 0; VEC_iterate (varobj_p, children, ix, child); ++ix)
 714             {
 715               struct cleanup *cleanup_child;
 716               cleanup_child = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
 717               print_varobj (child, print_values, 1 /* print expression */);
 718               do_cleanups (cleanup_child);
 719             }
 720
 721           do_cleanups (cleanup);
 722         }
 723
 724       if (mi_version (uiout) > 1)
 725         do_cleanups (cleanup);
 726     }
 727   VEC_free (varobj_update_result, changes);
 728 }