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               break;
 249             case SKIP_UNAVAILABLE:
 250               skip_unavailable = 1;
 251               break;
 252             }
 253         }
 254     }
 255
 256   /* After the last option is parsed, there should be only
 257      'print-values'.  */
 258   if (argc - oind != 1)
 259     error (_("-stack-list-locals: Usage: [--no-frame-filters] "
 260              "[--skip-unavailable] PRINT_VALUES"));
 261
 262   frame = get_selected_frame (NULL);
 263   print_value = mi_parse_print_values (argv[oind]);
 264
 265    if (! raw_arg && frame_filters)
 266      {
 267        frame_filter_flags flags = PRINT_LEVEL | PRINT_LOCALS;
 268
 269        result = mi_apply_ext_lang_frame_filter (frame, flags, print_value,
 270                                                 current_uiout, 0, 0);
 271      }
 272
 273    /* Run the inbuilt backtrace if there are no filters registered, or
 274       if "--no-frame-filters" has been specified from the command.  */
 275    if (! frame_filters || raw_arg  || result == EXT_LANG_BT_NO_FILTERS)
 276      {
 277        list_args_or_locals (locals, print_value, frame,
 278                             skip_unavailable);
 279      }
 280 }
 281
 282 /* Print a list of the arguments for the current frame.  With argument
 283    of 0, print only the names, with argument of 1 print also the
 284    values.  */
 285
 286 void
 287 mi_cmd_stack_list_args (const char *command, char **argv, int argc)
 288 {
 289   int frame_low;
 290   int frame_high;
 291   int i;
 292   struct frame_info *fi;
 293   enum print_values print_values;
 294   struct ui_out *uiout = current_uiout;
 295   int raw_arg = 0;
 296   int oind = 0;
 297   int skip_unavailable = 0;
 298   enum ext_lang_bt_status result = EXT_LANG_BT_ERROR;
 299   enum opt
 300   {
 301     NO_FRAME_FILTERS,
 302     SKIP_UNAVAILABLE,
 303   };
 304   static const struct mi_opt opts[] =
 305     {
 306       {"-no-frame-filters", NO_FRAME_FILTERS, 0},
 307       {"-skip-unavailable", SKIP_UNAVAILABLE, 0},
 308       { 0, 0, 0 }
 309     };
 310
 311   while (1)
 312     {
 313       char *oarg;
 314       int opt = mi_getopt_allow_unknown ("-stack-list-args", argc, argv,
 315                                          opts, &oind, &oarg);
 316
 317       if (opt < 0)
 318         break;
 319       switch ((enum opt) opt)
 320         {
 321         case NO_FRAME_FILTERS:
 322           raw_arg = oind;
 323           break;
 324         case SKIP_UNAVAILABLE:
 325           skip_unavailable = 1;
 326           break;
 327         }
 328     }
 329
 330   if (argc - oind != 1 && argc - oind != 3)
 331     error (_("-stack-list-arguments: Usage: "   \
 332              "[--no-frame-filters] [--skip-unavailable] "
 333              "PRINT_VALUES [FRAME_LOW FRAME_HIGH]"));
 334
 335   if (argc - oind == 3)
 336     {
 337       frame_low = atoi (argv[1 + oind]);
 338       frame_high = atoi (argv[2 + oind]);
 339     }
 340   else
 341     {
 342       /* Called with no arguments, it means we want args for the whole
 343          backtrace.  */
 344       frame_low = -1;
 345       frame_high = -1;
 346     }
 347
 348   print_values = mi_parse_print_values (argv[oind]);
 349
 350   /* Let's position fi on the frame at which to start the
 351      display. Could be the innermost frame if the whole stack needs
 352      displaying, or if frame_low is 0.  */
 353   for (i = 0, fi = get_current_frame ();
 354        fi && i < frame_low;
 355        i++, fi = get_prev_frame (fi));
 356
 357   if (fi == NULL)
 358     error (_("-stack-list-arguments: Not enough frames in stack."));
 359
 360   ui_out_emit_list list_emitter (uiout, "stack-args");
 361
 362   if (! raw_arg && frame_filters)
 363     {
 364       frame_filter_flags flags = PRINT_LEVEL | PRINT_ARGS;
 365       int py_frame_low = frame_low;
 366
 367       /* We cannot pass -1 to frame_low, as that would signify a
 368       relative backtrace from the tail of the stack.  So, in the case
 369       of frame_low == -1, assign and increment it.  */
 370       if (py_frame_low == -1)
 371         py_frame_low++;
 372
 373       result = mi_apply_ext_lang_frame_filter (get_current_frame (), flags,
 374                                                print_values, current_uiout,
 375                                                py_frame_low, frame_high);
 376     }
 377
 378      /* Run the inbuilt backtrace if there are no filters registered, or
 379       if "--no-frame-filters" has been specified from the command.  */
 380    if (! frame_filters || raw_arg  || result == EXT_LANG_BT_NO_FILTERS)
 381      {
 382       /* Now let's print the frames up to frame_high, or until there are
 383          frames in the stack.  */
 384       for (;
 385            fi && (i <= frame_high || frame_high == -1);
 386            i++, fi = get_prev_frame (fi))
 387         {
 388           QUIT;
 389           ui_out_emit_tuple tuple_emitter (uiout, "frame");
 390           uiout->field_int ("level", i);
 391           list_args_or_locals (arguments, print_values, fi, skip_unavailable);
 392         }
 393     }
 394 }
 395
 396 /* Print a list of the local variables (including arguments) for the
 397    current frame.  ARGC must be 1 and ARGV[0] specify if only the names,
 398    or both names and values of the variables must be printed.  See
 399    parse_print_value for possible values.  */
 400
 401 void
 402 mi_cmd_stack_list_variables (const char *command, char **argv, int argc)
 403 {
 404   struct frame_info *frame;
 405   int raw_arg = 0;
 406   enum ext_lang_bt_status result = EXT_LANG_BT_ERROR;
 407   enum print_values print_value;
 408   int oind = 0;
 409   int skip_unavailable = 0;
 410
 411   if (argc > 1)
 412     {
 413       enum opt
 414       {
 415         NO_FRAME_FILTERS,
 416         SKIP_UNAVAILABLE,
 417       };
 418       static const struct mi_opt opts[] =
 419         {
 420           {"-no-frame-filters", NO_FRAME_FILTERS, 0},
 421           {"-skip-unavailable", SKIP_UNAVAILABLE, 0},
 422           { 0, 0, 0 }
 423         };
 424
 425       while (1)
 426         {
 427           char *oarg;
 428           /* Don't parse 'print-values' as an option.  */
 429           int opt = mi_getopt ("-stack-list-variables", argc - 1,
 430                                argv, opts, &oind, &oarg);
 431           if (opt < 0)
 432             break;
 433           switch ((enum opt) opt)
 434             {
 435             case NO_FRAME_FILTERS:
 436               raw_arg = oind;
 437               break;
 438             case SKIP_UNAVAILABLE:
 439               skip_unavailable = 1;
 440               break;
 441             }
 442         }
 443     }
 444
 445   /* After the last option is parsed, there should be only
 446      'print-values'.  */
 447   if (argc - oind != 1)
 448     error (_("-stack-list-variables: Usage: [--no-frame-filters] " \
 449              "[--skip-unavailable] PRINT_VALUES"));
 450
 451    frame = get_selected_frame (NULL);
 452    print_value = mi_parse_print_values (argv[oind]);
 453
 454    if (! raw_arg && frame_filters)
 455      {
 456        frame_filter_flags flags = PRINT_LEVEL | PRINT_ARGS | PRINT_LOCALS;
 457
 458        result = mi_apply_ext_lang_frame_filter (frame, flags,
 459                                                 print_value,
 460                                                 current_uiout, 0, 0);
 461      }
 462
 463    /* Run the inbuilt backtrace if there are no filters registered, or
 464       if "--no-frame-filters" has been specified from the command.  */
 465    if (! frame_filters || raw_arg  || result == EXT_LANG_BT_NO_FILTERS)
 466      {
 467        list_args_or_locals (all, print_value, frame,
 468                             skip_unavailable);
 469      }
 470 }
 471
 472 /* Print single local or argument.  ARG must be already read in.  For
 473    WHAT and VALUES see list_args_or_locals.
 474
 475    Errors are printed as if they would be the parameter value.  Use
 476    zeroed ARG iff it should not be printed according to VALUES.  If
 477    SKIP_UNAVAILABLE is true, only print ARG if it is available.  */
 478
 479 static void
 480 list_arg_or_local (const struct frame_arg *arg, enum what_to_list what,
 481                    enum print_values values, int skip_unavailable)
 482 {
 483   struct ui_out *uiout = current_uiout;
 484
 485   gdb_assert (!arg->val || !arg->error);
 486   gdb_assert ((values == PRINT_NO_VALUES && arg->val == NULL
 487                && arg->error == NULL)
 488               || values == PRINT_SIMPLE_VALUES
 489               || (values == PRINT_ALL_VALUES
 490                   && (arg->val != NULL || arg->error != NULL)));
 491   gdb_assert (arg->entry_kind == print_entry_values_no
 492               || (arg->entry_kind == print_entry_values_only
 493                   && (arg->val || arg->error)));
 494
 495   if (skip_unavailable && arg->val != NULL
 496       && (value_entirely_unavailable (arg->val)
 497           /* A scalar object that does not have all bits available is
 498              also considered unavailable, because all bits contribute
 499              to its representation.  */
 500           || (val_print_scalar_type_p (value_type (arg->val))
 501               && !value_bytes_available (arg->val,
 502                                          value_embedded_offset (arg->val),
 503                                          TYPE_LENGTH (value_type (arg->val))))))
 504     return;
 505
 506   gdb::optional<ui_out_emit_tuple> tuple_emitter;
 507   if (values != PRINT_NO_VALUES || what == all)
 508     tuple_emitter.emplace (uiout, nullptr);
 509
 510   string_file stb;
 511
 512   stb.puts (SYMBOL_PRINT_NAME (arg->sym));
 513   if (arg->entry_kind == print_entry_values_only)
 514     stb.puts ("@entry");
 515   uiout->field_stream ("name", stb);
 516
 517   if (what == all && SYMBOL_IS_ARGUMENT (arg->sym))
 518     uiout->field_int ("arg", 1);
 519
 520   if (values == PRINT_SIMPLE_VALUES)
 521     {
 522       check_typedef (arg->sym->type);
 523       type_print (arg->sym->type, "", &stb, -1);
 524       uiout->field_stream ("type", stb);
 525     }
 526
 527   if (arg->val || arg->error)
 528     {
 529       const char *error_message = NULL;
 530
 531       if (arg->error)
 532         error_message = arg->error;
 533       else
 534         {
 535           TRY
 536             {
 537               struct value_print_options opts;
 538
 539               get_no_prettyformat_print_options (&opts);
 540               opts.deref_ref = 1;
 541               common_val_print (arg->val, &stb, 0, &opts,
 542                                 language_def (SYMBOL_LANGUAGE (arg->sym)));
 543             }
 544           CATCH (except, RETURN_MASK_ERROR)
 545             {
 546               error_message = except.message;
 547             }
 548           END_CATCH
 549         }
 550       if (error_message != NULL)
 551         stb.printf (_("<error reading variable: %s>"), error_message);
 552       uiout->field_stream ("value", stb);
 553     }
 554 }
 555
 556 /* Print a list of the objects for the frame FI in a certain form,
 557    which is determined by VALUES.  The objects can be locals,
 558    arguments or both, which is determined by WHAT.  If SKIP_UNAVAILABLE
 559    is true, only print the arguments or local variables whose values
 560    are available.  */
 561
 562 static void
 563 list_args_or_locals (enum what_to_list what, enum print_values values,
 564                      struct frame_info *fi, int skip_unavailable)
 565 {
 566   const struct block *block;
 567   struct symbol *sym;
 568   struct block_iterator iter;
 569   struct type *type;
 570   const char *name_of_result;
 571   struct ui_out *uiout = current_uiout;
 572
 573   block = get_frame_block (fi, 0);
 574
 575   switch (what)
 576     {
 577     case locals:
 578       name_of_result = "locals";
 579       break;
 580     case arguments:
 581       name_of_result = "args";
 582       break;
 583     case all:
 584       name_of_result = "variables";
 585       break;
 586     default:
 587       internal_error (__FILE__, __LINE__,
 588                       "unexpected what_to_list: %d", (int) what);
 589     }
 590
 591   ui_out_emit_list list_emitter (uiout, name_of_result);
 592
 593   while (block != 0)
 594     {
 595       ALL_BLOCK_SYMBOLS (block, iter, sym)
 596         {
 597           int print_me = 0;
 598
 599           switch (SYMBOL_CLASS (sym))
 600             {
 601             default:
 602             case LOC_UNDEF:     /* catches errors        */
 603             case LOC_CONST:     /* constant              */
 604             case LOC_TYPEDEF:   /* local typedef         */
 605             case LOC_LABEL:     /* local label           */
 606             case LOC_BLOCK:     /* local function        */
 607             case LOC_CONST_BYTES:       /* loc. byte seq.        */
 608             case LOC_UNRESOLVED:        /* unresolved static     */
 609             case LOC_OPTIMIZED_OUT:     /* optimized out         */
 610               print_me = 0;
 611               break;
 612
 613             case LOC_ARG:       /* argument              */
 614             case LOC_REF_ARG:   /* reference arg         */
 615             case LOC_REGPARM_ADDR:      /* indirect register arg */
 616             case LOC_LOCAL:     /* stack local           */
 617             case LOC_STATIC:    /* static                */
 618             case LOC_REGISTER:  /* register              */
 619             case LOC_COMPUTED:  /* computed location     */
 620               if (what == all)
 621                 print_me = 1;
 622               else if (what == locals)
 623                 print_me = !SYMBOL_IS_ARGUMENT (sym);
 624               else
 625                 print_me = SYMBOL_IS_ARGUMENT (sym);
 626               break;
 627             }
 628           if (print_me)
 629             {
 630               struct symbol *sym2;
 631               struct frame_arg arg, entryarg;
 632
 633               if (SYMBOL_IS_ARGUMENT (sym))
 634                 sym2 = lookup_symbol (SYMBOL_LINKAGE_NAME (sym),
 635                                       block, VAR_DOMAIN,
 636                                       NULL).symbol;
 637               else
 638                 sym2 = sym;
 639               gdb_assert (sym2 != NULL);
 640
 641               memset (&arg, 0, sizeof (arg));
 642               arg.sym = sym2;
 643               arg.entry_kind = print_entry_values_no;
 644               memset (&entryarg, 0, sizeof (entryarg));
 645               entryarg.sym = sym2;
 646               entryarg.entry_kind = print_entry_values_no;
 647
 648               switch (values)
 649                 {
 650                 case PRINT_SIMPLE_VALUES:
 651                   type = check_typedef (sym2->type);
 652                   if (TYPE_CODE (type) != TYPE_CODE_ARRAY
 653                       && TYPE_CODE (type) != TYPE_CODE_STRUCT
 654                       && TYPE_CODE (type) != TYPE_CODE_UNION)
 655                     {
 656                 case PRINT_ALL_VALUES:
 657                   if (SYMBOL_IS_ARGUMENT (sym))
 658                     read_frame_arg (sym2, fi, &arg, &entryarg);
 659                   else
 660                     read_frame_local (sym2, fi, &arg);
 661                     }
 662                   break;
 663                 }
 664
 665               if (arg.entry_kind != print_entry_values_only)
 666                 list_arg_or_local (&arg, what, values, skip_unavailable);
 667               if (entryarg.entry_kind != print_entry_values_no)
 668                 list_arg_or_local (&entryarg, what, values, skip_unavailable);
 669               xfree (arg.error);
 670               xfree (entryarg.error);
 671             }
 672         }
 673
 674       if (BLOCK_FUNCTION (block))
 675         break;
 676       else
 677         block = BLOCK_SUPERBLOCK (block);
 678     }
 679 }
 680
 681 void
 682 mi_cmd_stack_select_frame (const char *command, char **argv, int argc)
 683 {
 684   if (argc == 0 || argc > 1)
 685     error (_("-stack-select-frame: Usage: FRAME_SPEC"));
 686
 687   select_frame_command (argv[0], 1 /* not used */ );
 688 }
 689
 690 void
 691 mi_cmd_stack_info_frame (const char *command, char **argv, int argc)
 692 {
 693   if (argc > 0)
 694     error (_("-stack-info-frame: No arguments allowed"));
 695
 696   print_frame_info (get_selected_frame (NULL), 1, LOC_AND_ADDRESS, 0, 1);
 697 }