gdb/mi/mi-cmd-stack.c

   1 /* MI Command Set - stack commands.
   2    Copyright (C) 2000-2018 Free Software Foundation, Inc.
   3    Contributed by Cygnus Solutions (a Red Hat company).
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #include "defs.h"
  21 #include "target.h"
  22 #include "frame.h"
  23 #include "value.h"
  24 #include "mi-cmds.h"
  25 #include "ui-out.h"
  26 #include "symtab.h"
  27 #include "block.h"
  28 #include "stack.h"
  29 #include "dictionary.h"
  30 #include "language.h"
  31 #include "valprint.h"
  32 #include "utils.h"
  33 #include "mi-getopt.h"
  34 #include "extension.h"
  35 #include <ctype.h>
  36 #include "mi-parse.h"
  37 #include "common/gdb_optional.h"
  38
  39 enum what_to_list { locals, arguments, all };
  40
  41 static void list_args_or_locals (enum what_to_list what,
  42                                  enum print_values values,
  43                                  struct frame_info *fi,
  44                                  int skip_unavailable);
  45
  46 /* True if we want to allow Python-based frame filters.  */
  47 static int frame_filters = 0;
  48
  49 void
  50 mi_cmd_enable_frame_filters (const char *command, char **argv, int argc)
  51 {
  52   if (argc != 0)
  53     error (_("-enable-frame-filters: no arguments allowed"));
  54   frame_filters = 1;
  55 }
  56
  57 /* Like apply_ext_lang_frame_filter, but take a print_values */
  58
  59 static enum ext_lang_bt_status
  60 mi_apply_ext_lang_frame_filter (struct frame_info *frame,
  61                                 frame_filter_flags flags,
  62                                 enum print_values print_values,
  63                                 struct ui_out *out,
  64                                 int frame_low, int frame_high)
  65 {
  66   /* ext_lang_frame_args's MI options are compatible with MI print
  67      values.  */
  68   return apply_ext_lang_frame_filter (frame, flags,
  69                                       (enum ext_lang_frame_args) print_values,
  70                                       out,
  71                                       frame_low, frame_high);
  72 }
  73
  74 /* Print a list of the stack frames.  Args can be none, in which case
  75    we want to print the whole backtrace, or a pair of numbers
  76    specifying the frame numbers at which to start and stop the
  77    display.  If the two numbers are equal, a single frame will be
  78    displayed.  */
  79
  80 void
  81 mi_cmd_stack_list_frames (const char *command, char **argv, int argc)
  82 {
  83   int frame_low;
  84   int frame_high;
  85   int i;
  86   struct frame_info *fi;
  87   enum ext_lang_bt_status result = EXT_LANG_BT_ERROR;
  88   int raw_arg = 0;
  89   int oind = 0;
  90   enum opt
  91     {
  92       NO_FRAME_FILTERS
  93     };
  94   static const struct mi_opt opts[] =
  95     {
  96       {"-no-frame-filters", NO_FRAME_FILTERS, 0},
  97       { 0, 0, 0 }
  98     };
  99
 100   /* Parse arguments.  In this instance we are just looking for
 101      --no-frame-filters.  */
 102   while (1)
 103     {
 104       char *oarg;
 105       int opt = mi_getopt ("-stack-list-frames", argc, argv,
 106                            opts, &oind, &oarg);
 107       if (opt < 0)
 108         break;
 109       switch ((enum opt) opt)
 110         {
 111         case NO_FRAME_FILTERS:
 112           raw_arg = oind;
 113           break;
 114         }
 115     }
 116
 117   /* After the last option is parsed, there should either be low -
 118      high range, or no further arguments.  */
 119   if ((argc - oind != 0) && (argc - oind != 2))
 120     error (_("-stack-list-frames: Usage: [--no-frame-filters] [FRAME_LOW FRAME_HIGH]"));
 121
 122   /* If there is a range, set it.  */
 123   if (argc - oind == 2)
 124     {
 125       frame_low = atoi (argv[0 + oind]);
 126       frame_high = atoi (argv[1 + oind]);
 127     }
 128   else
 129     {
 130       /* Called with no arguments, it means we want the whole
 131          backtrace.  */
 132       frame_low = -1;
 133       frame_high = -1;
 134     }
 135
 136   /* Let's position fi on the frame at which to start the
 137      display. Could be the innermost frame if the whole stack needs
 138      displaying, or if frame_low is 0.  */
 139   for (i = 0, fi = get_current_frame ();
 140        fi && i < frame_low;
 141        i++, fi = get_prev_frame (fi));
 142
 143   if (fi == NULL)
 144     error (_("-stack-list-frames: Not enough frames in stack."));
 145
 146   ui_out_emit_list list_emitter (current_uiout, "stack");
 147
 148   if (! raw_arg && frame_filters)
 149     {
 150       frame_filter_flags flags = PRINT_LEVEL | PRINT_FRAME_INFO;
 151       int py_frame_low = frame_low;
 152
 153       /* We cannot pass -1 to frame_low, as that would signify a
 154       relative backtrace from the tail of the stack.  So, in the case
 155       of frame_low == -1, assign and increment it.  */
 156       if (py_frame_low == -1)
 157         py_frame_low++;
 158
 159       result = apply_ext_lang_frame_filter (get_current_frame (), flags,
 160                                             NO_VALUES,  current_uiout,
 161                                             py_frame_low, frame_high);
 162     }
 163
 164   /* Run the inbuilt backtrace if there are no filters registered, or
 165      if "--no-frame-filters" has been specified from the command.  */
 166   if (! frame_filters || raw_arg  || result == EXT_LANG_BT_NO_FILTERS)
 167     {
 168       /* Now let's print the frames up to frame_high, or until there are
 169          frames in the stack.  */
 170       for (;
 171            fi && (i <= frame_high || frame_high == -1);
 172            i++, fi = get_prev_frame (fi))
 173         {
 174           QUIT;
 175           /* Print the location and the address always, even for level 0.
 176              If args is 0, don't print the arguments.  */
 177           print_frame_info (fi, 1, LOC_AND_ADDRESS, 0 /* args */, 0);
 178         }
 179     }
 180 }
 181
 182 void
 183 mi_cmd_stack_info_depth (const char *command, char **argv, int argc)
 184 {
 185   int frame_high;
 186   int i;
 187   struct frame_info *fi;
 188
 189   if (argc > 1)
 190     error (_("-stack-info-depth: Usage: [MAX_DEPTH]"));
 191
 192   if (argc == 1)
 193     frame_high = atoi (argv[0]);
 194   else
 195     /* Called with no arguments, it means we want the real depth of
 196        the stack.  */
 197     frame_high = -1;
 198
 199   for (i = 0, fi = get_current_frame ();
 200        fi && (i < frame_high || frame_high == -1);
 201        i++, fi = get_prev_frame (fi))
 202     QUIT;
 203
 204   current_uiout->field_int ("depth", i);
 205 }
 206
 207 /* Print a list of the locals for the current frame.  With argument of
 208    0, print only the names, with argument of 1 print also the
 209    values.  */
 210
 211 void
 212 mi_cmd_stack_list_locals (const char *command, char **argv, int argc)
 213 {
 214   struct frame_info *frame;
 215   int raw_arg = 0;
 216   enum ext_lang_bt_status result = EXT_LANG_BT_ERROR;
 217   enum print_values print_value;
 218   int oind = 0;
 219   int skip_unavailable = 0;
 220
 221   if (argc > 1)
 222     {
 223       enum opt
 224       {
 225         NO_FRAME_FILTERS,
 226         SKIP_UNAVAILABLE,
 227       };
 228       static const struct mi_opt opts[] =
 229         {
 230           {"-no-frame-filters", NO_FRAME_FILTERS, 0},
 231           {"-skip-unavailable", SKIP_UNAVAILABLE, 0},
 232           { 0, 0, 0 }
 233         };
 234
 235       while (1)
 236         {
 237           char *oarg;
 238           /* Don't parse 'print-values' as an option.  */
 239           int opt = mi_getopt ("-stack-list-locals", argc - 1, argv,
 240                                opts, &oind, &oarg);
 241
 242           if (opt < 0)
 243             break;
 244           switch ((enum opt) opt)
 245             {
 246             case NO_FRAME_FILTERS:
 247               raw_arg = oind;
 248             case SKIP_UNAVAILABLE:
 249               skip_unavailable = 1;
 250               break;
 251             }
 252         }
 253     }
 254
 255   /* After the last option is parsed, there should be only
 256      'print-values'.  */
 257   if (argc - oind != 1)
 258     error (_("-stack-list-locals: Usage: [--no-frame-filters] "
 259              "[--skip-unavailable] PRINT_VALUES"));
 260
 261   frame = get_selected_frame (NULL);
 262   print_value = mi_parse_print_values (argv[oind]);
 263
 264    if (! raw_arg && frame_filters)
 265      {
 266        frame_filter_flags flags = PRINT_LEVEL | PRINT_LOCALS;
 267
 268        result = mi_apply_ext_lang_frame_filter (frame, flags, print_value,
 269                                                 current_uiout, 0, 0);
 270      }
 271
 272    /* Run the inbuilt backtrace if there are no filters registered, or
 273       if "--no-frame-filters" has been specified from the command.  */
 274    if (! frame_filters || raw_arg  || result == EXT_LANG_BT_NO_FILTERS)
 275      {
 276        list_args_or_locals (locals, print_value, frame,
 277                             skip_unavailable);
 278      }
 279 }
 280
 281 /* Print a list of the arguments for the current frame.  With argument
 282    of 0, print only the names, with argument of 1 print also the
 283    values.  */
 284
 285 void
 286 mi_cmd_stack_list_args (const char *command, char **argv, int argc)
 287 {
 288   int frame_low;
 289   int frame_high;
 290   int i;
 291   struct frame_info *fi;
 292   enum print_values print_values;
 293   struct ui_out *uiout = current_uiout;
 294   int raw_arg = 0;
 295   int oind = 0;
 296   int skip_unavailable = 0;
 297   enum ext_lang_bt_status result = EXT_LANG_BT_ERROR;
 298   enum opt
 299   {
 300     NO_FRAME_FILTERS,
 301     SKIP_UNAVAILABLE,
 302   };
 303   static const struct mi_opt opts[] =
 304     {
 305       {"-no-frame-filters", NO_FRAME_FILTERS, 0},
 306       {"-skip-unavailable", SKIP_UNAVAILABLE, 0},
 307       { 0, 0, 0 }
 308     };
 309
 310   while (1)
 311     {
 312       char *oarg;
 313       int opt = mi_getopt_allow_unknown ("-stack-list-args", argc, argv,
 314                                          opts, &oind, &oarg);
 315
 316       if (opt < 0)
 317         break;
 318       switch ((enum opt) opt)
 319         {
 320         case NO_FRAME_FILTERS:
 321           raw_arg = oind;
 322           break;
 323         case SKIP_UNAVAILABLE:
 324           skip_unavailable = 1;
 325           break;
 326         }
 327     }
 328
 329   if (argc - oind != 1 && argc - oind != 3)
 330     error (_("-stack-list-arguments: Usage: "   \
 331              "[--no-frame-filters] [--skip-unavailable] "
 332              "PRINT_VALUES [FRAME_LOW FRAME_HIGH]"));
 333
 334   if (argc - oind == 3)
 335     {
 336       frame_low = atoi (argv[1 + oind]);
 337       frame_high = atoi (argv[2 + oind]);
 338     }
 339   else
 340     {
 341       /* Called with no arguments, it means we want args for the whole
 342          backtrace.  */
 343       frame_low = -1;
 344       frame_high = -1;
 345     }
 346
 347   print_values = mi_parse_print_values (argv[oind]);
 348
 349   /* Let's position fi on the frame at which to start the
 350      display. Could be the innermost frame if the whole stack needs
 351      displaying, or if frame_low is 0.  */
 352   for (i = 0, fi = get_current_frame ();
 353        fi && i < frame_low;
 354        i++, fi = get_prev_frame (fi));
 355
 356   if (fi == NULL)
 357     error (_("-stack-list-arguments: Not enough frames in stack."));
 358
 359   ui_out_emit_list list_emitter (uiout, "stack-args");
 360
 361   if (! raw_arg && frame_filters)
 362     {
 363       frame_filter_flags flags = PRINT_LEVEL | PRINT_ARGS;
 364       int py_frame_low = frame_low;
 365
 366       /* We cannot pass -1 to frame_low, as that would signify a
 367       relative backtrace from the tail of the stack.  So, in the case
 368       of frame_low == -1, assign and increment it.  */
 369       if (py_frame_low == -1)
 370         py_frame_low++;
 371
 372       result = mi_apply_ext_lang_frame_filter (get_current_frame (), flags,
 373                                                print_values, current_uiout,
 374                                                py_frame_low, frame_high);
 375     }
 376
 377      /* Run the inbuilt backtrace if there are no filters registered, or
 378       if "--no-frame-filters" has been specified from the command.  */
 379    if (! frame_filters || raw_arg  || result == EXT_LANG_BT_NO_FILTERS)
 380      {
 381       /* Now let's print the frames up to frame_high, or until there are
 382          frames in the stack.  */
 383       for (;
 384            fi && (i <= frame_high || frame_high == -1);
 385            i++, fi = get_prev_frame (fi))
 386         {
 387           QUIT;
 388           ui_out_emit_tuple tuple_emitter (uiout, "frame");
 389           uiout->field_int ("level", i);
 390           list_args_or_locals (arguments, print_values, fi, skip_unavailable);
 391         }
 392     }
 393 }
 394
 395 /* Print a list of the local variables (including arguments) for the
 396    current frame.  ARGC must be 1 and ARGV[0] specify if only the names,
 397    or both names and values of the variables must be printed.  See
 398    parse_print_value for possible values.  */
 399
 400 void
 401 mi_cmd_stack_list_variables (const char *command, char **argv, int argc)
 402 {
 403   struct frame_info *frame;
 404   int raw_arg = 0;
 405   enum ext_lang_bt_status result = EXT_LANG_BT_ERROR;
 406   enum print_values print_value;
 407   int oind = 0;
 408   int skip_unavailable = 0;
 409
 410   if (argc > 1)
 411     {
 412       enum opt
 413       {
 414         NO_FRAME_FILTERS,
 415         SKIP_UNAVAILABLE,
 416       };
 417       static const struct mi_opt opts[] =
 418         {
 419           {"-no-frame-filters", NO_FRAME_FILTERS, 0},
 420           {"-skip-unavailable", SKIP_UNAVAILABLE, 0},
 421           { 0, 0, 0 }
 422         };
 423
 424       while (1)
 425         {
 426           char *oarg;
 427           /* Don't parse 'print-values' as an option.  */
 428           int opt = mi_getopt ("-stack-list-variables", argc - 1,
 429                                argv, opts, &oind, &oarg);
 430           if (opt < 0)
 431             break;
 432           switch ((enum opt) opt)
 433             {
 434             case NO_FRAME_FILTERS:
 435               raw_arg = oind;
 436               break;
 437             case SKIP_UNAVAILABLE:
 438               skip_unavailable = 1;
 439               break;
 440             }
 441         }
 442     }
 443
 444   /* After the last option is parsed, there should be only
 445      'print-values'.  */
 446   if (argc - oind != 1)
 447     error (_("-stack-list-variables: Usage: [--no-frame-filters] " \
 448              "[--skip-unavailable] PRINT_VALUES"));
 449
 450    frame = get_selected_frame (NULL);
 451    print_value = mi_parse_print_values (argv[oind]);
 452
 453    if (! raw_arg && frame_filters)
 454      {
 455        frame_filter_flags flags = PRINT_LEVEL | PRINT_ARGS | PRINT_LOCALS;
 456
 457        result = mi_apply_ext_lang_frame_filter (frame, flags,
 458                                                 print_value,
 459                                                 current_uiout, 0, 0);
 460      }
 461
 462    /* Run the inbuilt backtrace if there are no filters registered, or
 463       if "--no-frame-filters" has been specified from the command.  */
 464    if (! frame_filters || raw_arg  || result == EXT_LANG_BT_NO_FILTERS)
 465      {
 466        list_args_or_locals (all, print_value, frame,
 467                             skip_unavailable);
 468      }
 469 }
 470
 471 /* Print single local or argument.  ARG must be already read in.  For
 472    WHAT and VALUES see list_args_or_locals.
 473
 474    Errors are printed as if they would be the parameter value.  Use
 475    zeroed ARG iff it should not be printed according to VALUES.  If
 476    SKIP_UNAVAILABLE is true, only print ARG if it is available.  */
 477
 478 static void
 479 list_arg_or_local (const struct frame_arg *arg, enum what_to_list what,
 480                    enum print_values values, int skip_unavailable)
 481 {
 482   struct ui_out *uiout = current_uiout;
 483
 484   gdb_assert (!arg->val || !arg->error);
 485   gdb_assert ((values == PRINT_NO_VALUES && arg->val == NULL
 486                && arg->error == NULL)
 487               || values == PRINT_SIMPLE_VALUES
 488               || (values == PRINT_ALL_VALUES
 489                   && (arg->val != NULL || arg->error != NULL)));
 490   gdb_assert (arg->entry_kind == print_entry_values_no
 491               || (arg->entry_kind == print_entry_values_only
 492                   && (arg->val || arg->error)));
 493
 494   if (skip_unavailable && arg->val != NULL
 495       && (value_entirely_unavailable (arg->val)
 496           /* A scalar object that does not have all bits available is
 497              also considered unavailable, because all bits contribute
 498              to its representation.  */
 499           || (val_print_scalar_type_p (value_type (arg->val))
 500               && !value_bytes_available (arg->val,
 501                                          value_embedded_offset (arg->val),
 502                                          TYPE_LENGTH (value_type (arg->val))))))
 503     return;
 504
 505   gdb::optional<ui_out_emit_tuple> tuple_emitter;
 506   if (values != PRINT_NO_VALUES || what == all)
 507     tuple_emitter.emplace (uiout, nullptr);
 508
 509   string_file stb;
 510
 511   stb.puts (SYMBOL_PRINT_NAME (arg->sym));
 512   if (arg->entry_kind == print_entry_values_only)
 513     stb.puts ("@entry");
 514   uiout->field_stream ("name", stb);
 515
 516   if (what == all && SYMBOL_IS_ARGUMENT (arg->sym))
 517     uiout->field_int ("arg", 1);
 518
 519   if (values == PRINT_SIMPLE_VALUES)
 520     {
 521       check_typedef (arg->sym->type);
 522       type_print (arg->sym->type, "", &stb, -1);
 523       uiout->field_stream ("type", stb);
 524     }
 525
 526   if (arg->val || arg->error)
 527     {
 528       const char *error_message = NULL;
 529
 530       if (arg->error)
 531         error_message = arg->error;
 532       else
 533         {
 534           TRY
 535             {
 536               struct value_print_options opts;
 537
 538               get_no_prettyformat_print_options (&opts);
 539               opts.deref_ref = 1;
 540               common_val_print (arg->val, &stb, 0, &opts,
 541                                 language_def (SYMBOL_LANGUAGE (arg->sym)));
 542             }
 543           CATCH (except, RETURN_MASK_ERROR)
 544             {
 545               error_message = except.message;
 546             }
 547           END_CATCH
 548         }
 549       if (error_message != NULL)
 550         stb.printf (_("<error reading variable: %s>"), error_message);
 551       uiout->field_stream ("value", stb);
 552     }
 553 }
 554
 555 /* Print a list of the objects for the frame FI in a certain form,
 556    which is determined by VALUES.  The objects can be locals,
 557    arguments or both, which is determined by WHAT.  If SKIP_UNAVAILABLE
 558    is true, only print the arguments or local variables whose values
 559    are available.  */
 560
 561 static void
 562 list_args_or_locals (enum what_to_list what, enum print_values values,
 563                      struct frame_info *fi, int skip_unavailable)
 564 {
 565   const struct block *block;
 566   struct symbol *sym;
 567   struct block_iterator iter;
 568   struct type *type;
 569   const char *name_of_result;
 570   struct ui_out *uiout = current_uiout;
 571
 572   block = get_frame_block (fi, 0);
 573
 574   switch (what)
 575     {
 576     case locals:
 577       name_of_result = "locals";
 578       break;
 579     case arguments:
 580       name_of_result = "args";
 581       break;
 582     case all:
 583       name_of_result = "variables";
 584       break;
 585     default:
 586       internal_error (__FILE__, __LINE__,
 587                       "unexpected what_to_list: %d", (int) what);
 588     }
 589
 590   ui_out_emit_list list_emitter (uiout, name_of_result);
 591
 592   while (block != 0)
 593     {
 594       ALL_BLOCK_SYMBOLS (block, iter, sym)
 595         {
 596           int print_me = 0;
 597
 598           switch (SYMBOL_CLASS (sym))
 599             {
 600             default:
 601             case LOC_UNDEF:     /* catches errors        */
 602             case LOC_CONST:     /* constant              */
 603             case LOC_TYPEDEF:   /* local typedef         */
 604             case LOC_LABEL:     /* local label           */
 605             case LOC_BLOCK:     /* local function        */
 606             case LOC_CONST_BYTES:       /* loc. byte seq.        */
 607             case LOC_UNRESOLVED:        /* unresolved static     */
 608             case LOC_OPTIMIZED_OUT:     /* optimized out         */
 609               print_me = 0;
 610               break;
 611
 612             case LOC_ARG:       /* argument              */
 613             case LOC_REF_ARG:   /* reference arg         */
 614             case LOC_REGPARM_ADDR:      /* indirect register arg */
 615             case LOC_LOCAL:     /* stack local           */
 616             case LOC_STATIC:    /* static                */
 617             case LOC_REGISTER:  /* register              */
 618             case LOC_COMPUTED:  /* computed location     */
 619               if (what == all)
 620                 print_me = 1;
 621               else if (what == locals)
 622                 print_me = !SYMBOL_IS_ARGUMENT (sym);
 623               else
 624                 print_me = SYMBOL_IS_ARGUMENT (sym);
 625               break;
 626             }
 627           if (print_me)
 628             {
 629               struct symbol *sym2;
 630               struct frame_arg arg, entryarg;
 631
 632               if (SYMBOL_IS_ARGUMENT (sym))
 633                 sym2 = lookup_symbol (SYMBOL_LINKAGE_NAME (sym),
 634                                       block, VAR_DOMAIN,
 635                                       NULL).symbol;
 636               else
 637                 sym2 = sym;
 638               gdb_assert (sym2 != NULL);
 639
 640               memset (&arg, 0, sizeof (arg));
 641               arg.sym = sym2;
 642               arg.entry_kind = print_entry_values_no;
 643               memset (&entryarg, 0, sizeof (entryarg));
 644               entryarg.sym = sym2;
 645               entryarg.entry_kind = print_entry_values_no;
 646
 647               switch (values)
 648                 {
 649                 case PRINT_SIMPLE_VALUES:
 650                   type = check_typedef (sym2->type);
 651                   if (TYPE_CODE (type) != TYPE_CODE_ARRAY
 652                       && TYPE_CODE (type) != TYPE_CODE_STRUCT
 653                       && TYPE_CODE (type) != TYPE_CODE_UNION)
 654                     {
 655                 case PRINT_ALL_VALUES:
 656                   if (SYMBOL_IS_ARGUMENT (sym))
 657                     read_frame_arg (sym2, fi, &arg, &entryarg);
 658                   else
 659                     read_frame_local (sym2, fi, &arg);
 660                     }
 661                   break;
 662                 }
 663
 664               if (arg.entry_kind != print_entry_values_only)
 665                 list_arg_or_local (&arg, what, values, skip_unavailable);
 666               if (entryarg.entry_kind != print_entry_values_no)
 667                 list_arg_or_local (&entryarg, what, values, skip_unavailable);
 668               xfree (arg.error);
 669               xfree (entryarg.error);
 670             }
 671         }
 672
 673       if (BLOCK_FUNCTION (block))
 674         break;
 675       else
 676         block = BLOCK_SUPERBLOCK (block);
 677     }
 678 }
 679
 680 void
 681 mi_cmd_stack_select_frame (const char *command, char **argv, int argc)
 682 {
 683   if (argc == 0 || argc > 1)
 684     error (_("-stack-select-frame: Usage: FRAME_SPEC"));
 685
 686   select_frame_command (argv[0], 1 /* not used */ );
 687 }
 688
 689 void
 690 mi_cmd_stack_info_frame (const char *command, char **argv, int argc)
 691 {
 692   if (argc > 0)
 693     error (_("-stack-info-frame: No arguments allowed"));
 694
 695   print_frame_info (get_selected_frame (NULL), 1, LOC_AND_ADDRESS, 0, 1);
 696 }