gdb/f-valprint.c

   1 /* Support for printing Fortran values for GDB, the GNU debugger.
   2
   3    Copyright (C) 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2003, 2005, 2006,
   4    2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
   5
   6    Contributed by Motorola.  Adapted from the C definitions by Farooq Butt
   7    (fmbutt@engage.sps.mot.com), additionally worked over by Stan Shebs.
   8
   9    This file is part of GDB.
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 3 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  23
  24 #include "defs.h"
  25 #include "gdb_string.h"
  26 #include "symtab.h"
  27 #include "gdbtypes.h"
  28 #include "expression.h"
  29 #include "value.h"
  30 #include "valprint.h"
  31 #include "language.h"
  32 #include "f-lang.h"
  33 #include "frame.h"
  34 #include "gdbcore.h"
  35 #include "command.h"
  36 #include "block.h"
  37
  38 #if 0
  39 static int there_is_a_visible_common_named (char *);
  40 #endif
  41
  42 extern void _initialize_f_valprint (void);
  43 static void info_common_command (char *, int);
  44 static void list_all_visible_commons (char *);
  45 static void f77_create_arrayprint_offset_tbl (struct type *,
  46                                               struct ui_file *);
  47 static void f77_get_dynamic_length_of_aggregate (struct type *);
  48
  49 int f77_array_offset_tbl[MAX_FORTRAN_DIMS + 1][2];
  50
  51 /* Array which holds offsets to be applied to get a row's elements
  52    for a given array.  Array also holds the size of each subarray.  */
  53
  54 /* The following macro gives us the size of the nth dimension, Where
  55    n is 1 based.  */
  56
  57 #define F77_DIM_SIZE(n) (f77_array_offset_tbl[n][1])
  58
  59 /* The following gives us the offset for row n where n is 1-based.  */
  60
  61 #define F77_DIM_OFFSET(n) (f77_array_offset_tbl[n][0])
  62
  63 int
  64 f77_get_lowerbound (struct type *type)
  65 {
  66   if (TYPE_ARRAY_LOWER_BOUND_IS_UNDEFINED (type))
  67     error (_("Lower bound may not be '*' in F77"));
  68
  69   return TYPE_ARRAY_LOWER_BOUND_VALUE (type);
  70 }
  71
  72 int
  73 f77_get_upperbound (struct type *type)
  74 {
  75   if (TYPE_ARRAY_UPPER_BOUND_IS_UNDEFINED (type))
  76     {
  77       /* We have an assumed size array on our hands.  Assume that
  78          upper_bound == lower_bound so that we show at least 1 element.
  79          If the user wants to see more elements, let him manually ask for 'em
  80          and we'll subscript the array and show him.  */
  81
  82       return f77_get_lowerbound (type);
  83     }
  84
  85   return TYPE_ARRAY_UPPER_BOUND_VALUE (type);
  86 }
  87
  88 /* Obtain F77 adjustable array dimensions.  */
  89
  90 static void
  91 f77_get_dynamic_length_of_aggregate (struct type *type)
  92 {
  93   int upper_bound = -1;
  94   int lower_bound = 1;
  95
  96   /* Recursively go all the way down into a possibly multi-dimensional
  97      F77 array and get the bounds.  For simple arrays, this is pretty
  98      easy but when the bounds are dynamic, we must be very careful
  99      to add up all the lengths correctly.  Not doing this right
 100      will lead to horrendous-looking arrays in parameter lists.
 101
 102      This function also works for strings which behave very
 103      similarly to arrays.  */
 104
 105   if (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_ARRAY
 106       || TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_STRING)
 107     f77_get_dynamic_length_of_aggregate (TYPE_TARGET_TYPE (type));
 108
 109   /* Recursion ends here, start setting up lengths.  */
 110   lower_bound = f77_get_lowerbound (type);
 111   upper_bound = f77_get_upperbound (type);
 112
 113   /* Patch in a valid length value.  */
 114
 115   TYPE_LENGTH (type) =
 116     (upper_bound - lower_bound + 1)
 117     * TYPE_LENGTH (check_typedef (TYPE_TARGET_TYPE (type)));
 118 }
 119
 120 /* Function that sets up the array offset,size table for the array
 121    type "type".  */
 122
 123 static void
 124 f77_create_arrayprint_offset_tbl (struct type *type, struct ui_file *stream)
 125 {
 126   struct type *tmp_type;
 127   int eltlen;
 128   int ndimen = 1;
 129   int upper, lower;
 130
 131   tmp_type = type;
 132
 133   while ((TYPE_CODE (tmp_type) == TYPE_CODE_ARRAY))
 134     {
 135       upper = f77_get_upperbound (tmp_type);
 136       lower = f77_get_lowerbound (tmp_type);
 137
 138       F77_DIM_SIZE (ndimen) = upper - lower + 1;
 139
 140       tmp_type = TYPE_TARGET_TYPE (tmp_type);
 141       ndimen++;
 142     }
 143
 144   /* Now we multiply eltlen by all the offsets, so that later we
 145      can print out array elements correctly.  Up till now we
 146      know an offset to apply to get the item but we also
 147      have to know how much to add to get to the next item.  */
 148
 149   ndimen--;
 150   eltlen = TYPE_LENGTH (tmp_type);
 151   F77_DIM_OFFSET (ndimen) = eltlen;
 152   while (--ndimen > 0)
 153     {
 154       eltlen *= F77_DIM_SIZE (ndimen + 1);
 155       F77_DIM_OFFSET (ndimen) = eltlen;
 156     }
 157 }
 158
 159
 160
 161 /* Actual function which prints out F77 arrays, Valaddr == address in
 162    the superior.  Address == the address in the inferior.  */
 163
 164 static void
 165 f77_print_array_1 (int nss, int ndimensions, struct type *type,
 166                    const gdb_byte *valaddr,
 167                    int embedded_offset, CORE_ADDR address,
 168                    struct ui_file *stream, int recurse,
 169                    const struct value *val,
 170                    const struct value_print_options *options,
 171                    int *elts)
 172 {
 173   int i;
 174
 175   if (nss != ndimensions)
 176     {
 177       for (i = 0;
 178            (i < F77_DIM_SIZE (nss) && (*elts) < options->print_max);
 179            i++)
 180         {
 181           fprintf_filtered (stream, "( ");
 182           f77_print_array_1 (nss + 1, ndimensions, TYPE_TARGET_TYPE (type),
 183                              valaddr,
 184                              embedded_offset + i * F77_DIM_OFFSET (nss),
 185                              address,
 186                              stream, recurse, val, options, elts);
 187           fprintf_filtered (stream, ") ");
 188         }
 189       if (*elts >= options->print_max && i < F77_DIM_SIZE (nss))
 190         fprintf_filtered (stream, "...");
 191     }
 192   else
 193     {
 194       for (i = 0; i < F77_DIM_SIZE (nss) && (*elts) < options->print_max;
 195            i++, (*elts)++)
 196         {
 197           val_print (TYPE_TARGET_TYPE (type),
 198                      valaddr,
 199                      embedded_offset + i * F77_DIM_OFFSET (ndimensions),
 200                      address, stream, recurse,
 201                      val, options, current_language);
 202
 203           if (i != (F77_DIM_SIZE (nss) - 1))
 204             fprintf_filtered (stream, ", ");
 205
 206           if ((*elts == options->print_max - 1)
 207               && (i != (F77_DIM_SIZE (nss) - 1)))
 208             fprintf_filtered (stream, "...");
 209         }
 210     }
 211 }
 212
 213 /* This function gets called to print an F77 array, we set up some
 214    stuff and then immediately call f77_print_array_1().  */
 215
 216 static void
 217 f77_print_array (struct type *type, const gdb_byte *valaddr,
 218                  int embedded_offset,
 219                  CORE_ADDR address, struct ui_file *stream,
 220                  int recurse,
 221                  const struct value *val,
 222                  const struct value_print_options *options)
 223 {
 224   int ndimensions;
 225   int elts = 0;
 226
 227   ndimensions = calc_f77_array_dims (type);
 228
 229   if (ndimensions > MAX_FORTRAN_DIMS || ndimensions < 0)
 230     error (_("\
 231 Type node corrupt! F77 arrays cannot have %d subscripts (%d Max)"),
 232            ndimensions, MAX_FORTRAN_DIMS);
 233
 234   /* Since F77 arrays are stored column-major, we set up an
 235      offset table to get at the various row's elements.  The
 236      offset table contains entries for both offset and subarray size.  */
 237
 238   f77_create_arrayprint_offset_tbl (type, stream);
 239
 240   f77_print_array_1 (1, ndimensions, type, valaddr, embedded_offset,
 241                      address, stream, recurse, val, options, &elts);
 242 }
 243 \f
 244
 245 /* See val_print for a description of the various parameters of this
 246    function; they are identical.  The semantics of the return value is
 247    also identical to val_print.  */
 248
 249 int
 250 f_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset,
 251              CORE_ADDR address, struct ui_file *stream, int recurse,
 252              const struct value *original_value,
 253              const struct value_print_options *options)
 254 {
 255   struct gdbarch *gdbarch = get_type_arch (type);
 256   enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
 257   unsigned int i = 0;   /* Number of characters printed.  */
 258   struct type *elttype;
 259   LONGEST val;
 260   CORE_ADDR addr;
 261   int index;
 262
 263   CHECK_TYPEDEF (type);
 264   switch (TYPE_CODE (type))
 265     {
 266     case TYPE_CODE_STRING:
 267       f77_get_dynamic_length_of_aggregate (type);
 268       LA_PRINT_STRING (stream, builtin_type (gdbarch)->builtin_char,
 269                        valaddr + embedded_offset,
 270                        TYPE_LENGTH (type), NULL, 0, options);
 271       break;
 272
 273     case TYPE_CODE_ARRAY:
 274       fprintf_filtered (stream, "(");
 275       f77_print_array (type, valaddr, embedded_offset,
 276                        address, stream, recurse, original_value, options);
 277       fprintf_filtered (stream, ")");
 278       break;
 279
 280     case TYPE_CODE_PTR:
 281       if (options->format && options->format != 's')
 282         {
 283           val_print_scalar_formatted (type, valaddr, embedded_offset,
 284                                       original_value, options, 0, stream);
 285           break;
 286         }
 287       else
 288         {
 289           addr = unpack_pointer (type, valaddr + embedded_offset);
 290           elttype = check_typedef (TYPE_TARGET_TYPE (type));
 291
 292           if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
 293             {
 294               /* Try to print what function it points to.  */
 295               print_address_demangle (gdbarch, addr, stream, demangle);
 296               /* Return value is irrelevant except for string pointers.  */
 297               return 0;
 298             }
 299
 300           if (options->addressprint && options->format != 's')
 301             fputs_filtered (paddress (gdbarch, addr), stream);
 302
 303           /* For a pointer to char or unsigned char, also print the string
 304              pointed to, unless pointer is null.  */
 305           if (TYPE_LENGTH (elttype) == 1
 306               && TYPE_CODE (elttype) == TYPE_CODE_INT
 307               && (options->format == 0 || options->format == 's')
 308               && addr != 0)
 309             i = val_print_string (TYPE_TARGET_TYPE (type), NULL, addr, -1,
 310                                   stream, options);
 311
 312           /* Return number of characters printed, including the terminating
 313              '\0' if we reached the end.  val_print_string takes care including
 314              the terminating '\0' if necessary.  */
 315           return i;
 316         }
 317       break;
 318
 319     case TYPE_CODE_REF:
 320       elttype = check_typedef (TYPE_TARGET_TYPE (type));
 321       if (options->addressprint)
 322         {
 323           CORE_ADDR addr
 324             = extract_typed_address (valaddr + embedded_offset, type);
 325
 326           fprintf_filtered (stream, "@");
 327           fputs_filtered (paddress (gdbarch, addr), stream);
 328           if (options->deref_ref)
 329             fputs_filtered (": ", stream);
 330         }
 331       /* De-reference the reference.  */
 332       if (options->deref_ref)
 333         {
 334           if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
 335             {
 336               struct value *deref_val =
 337                 value_at
 338                 (TYPE_TARGET_TYPE (type),
 339                  unpack_pointer (type, valaddr + embedded_offset));
 340
 341               common_val_print (deref_val, stream, recurse,
 342                                 options, current_language);
 343             }
 344           else
 345             fputs_filtered ("???", stream);
 346         }
 347       break;
 348
 349     case TYPE_CODE_FUNC:
 350       if (options->format)
 351         {
 352           val_print_scalar_formatted (type, valaddr, embedded_offset,
 353                                       original_value, options, 0, stream);
 354           break;
 355         }
 356       /* FIXME, we should consider, at least for ANSI C language, eliminating
 357          the distinction made between FUNCs and POINTERs to FUNCs.  */
 358       fprintf_filtered (stream, "{");
 359       type_print (type, "", stream, -1);
 360       fprintf_filtered (stream, "} ");
 361       /* Try to print what function it points to, and its address.  */
 362       print_address_demangle (gdbarch, address, stream, demangle);
 363       break;
 364
 365     case TYPE_CODE_INT:
 366       if (options->format || options->output_format)
 367         {
 368           struct value_print_options opts = *options;
 369
 370           opts.format = (options->format ? options->format
 371                          : options->output_format);
 372           val_print_scalar_formatted (type, valaddr, embedded_offset,
 373                                       original_value, options, 0, stream);
 374         }
 375       else
 376         {
 377           val_print_type_code_int (type, valaddr + embedded_offset, stream);
 378           /* C and C++ has no single byte int type, char is used instead.
 379              Since we don't know whether the value is really intended to
 380              be used as an integer or a character, print the character
 381              equivalent as well.  */
 382           if (TYPE_LENGTH (type) == 1)
 383             {
 384               LONGEST c;
 385
 386               fputs_filtered (" ", stream);
 387               c = unpack_long (type, valaddr + embedded_offset);
 388               LA_PRINT_CHAR ((unsigned char) c, type, stream);
 389             }
 390         }
 391       break;
 392
 393     case TYPE_CODE_FLAGS:
 394       if (options->format)
 395         val_print_scalar_formatted (type, valaddr, embedded_offset,
 396                                     original_value, options, 0, stream);
 397       else
 398         val_print_type_code_flags (type, valaddr + embedded_offset, stream);
 399       break;
 400
 401     case TYPE_CODE_FLT:
 402       if (options->format)
 403         val_print_scalar_formatted (type, valaddr, embedded_offset,
 404                                     original_value, options, 0, stream);
 405       else
 406         print_floating (valaddr + embedded_offset, type, stream);
 407       break;
 408
 409     case TYPE_CODE_VOID:
 410       fprintf_filtered (stream, "VOID");
 411       break;
 412
 413     case TYPE_CODE_ERROR:
 414       fprintf_filtered (stream, "%s", TYPE_ERROR_NAME (type));
 415       break;
 416
 417     case TYPE_CODE_RANGE:
 418       /* FIXME, we should not ever have to print one of these yet.  */
 419       fprintf_filtered (stream, "<range type>");
 420       break;
 421
 422     case TYPE_CODE_BOOL:
 423       if (options->format || options->output_format)
 424         {
 425           struct value_print_options opts = *options;
 426
 427           opts.format = (options->format ? options->format
 428                          : options->output_format);
 429           val_print_scalar_formatted (type, valaddr, embedded_offset,
 430                                       original_value, &opts, 0, stream);
 431         }
 432       else
 433         {
 434           val = extract_unsigned_integer (valaddr + embedded_offset,
 435                                           TYPE_LENGTH (type), byte_order);
 436           if (val == 0)
 437             fprintf_filtered (stream, ".FALSE.");
 438           else if (val == 1)
 439             fprintf_filtered (stream, ".TRUE.");
 440           else
 441             /* Not a legitimate logical type, print as an integer.  */
 442             {
 443               /* Bash the type code temporarily.  */
 444               TYPE_CODE (type) = TYPE_CODE_INT;
 445               val_print (type, valaddr, embedded_offset,
 446                          address, stream, recurse,
 447                          original_value, options, current_language);
 448               /* Restore the type code so later uses work as intended.  */
 449               TYPE_CODE (type) = TYPE_CODE_BOOL;
 450             }
 451         }
 452       break;
 453
 454     case TYPE_CODE_COMPLEX:
 455       type = TYPE_TARGET_TYPE (type);
 456       fputs_filtered ("(", stream);
 457       print_floating (valaddr + embedded_offset, type, stream);
 458       fputs_filtered (",", stream);
 459       print_floating (valaddr + embedded_offset + TYPE_LENGTH (type),
 460                       type, stream);
 461       fputs_filtered (")", stream);
 462       break;
 463
 464     case TYPE_CODE_UNDEF:
 465       /* This happens (without TYPE_FLAG_STUB set) on systems which don't use
 466          dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar"
 467          and no complete type for struct foo in that file.  */
 468       fprintf_filtered (stream, "<incomplete type>");
 469       break;
 470
 471     case TYPE_CODE_STRUCT:
 472     case TYPE_CODE_UNION:
 473       /* Starting from the Fortran 90 standard, Fortran supports derived
 474          types.  */
 475       fprintf_filtered (stream, "( ");
 476       for (index = 0; index < TYPE_NFIELDS (type); index++)
 477         {
 478           int offset = TYPE_FIELD_BITPOS (type, index) / 8;
 479
 480           val_print (TYPE_FIELD_TYPE (type, index), valaddr,
 481                      embedded_offset + offset,
 482                      address, stream, recurse + 1,
 483                      original_value, options, current_language);
 484           if (index != TYPE_NFIELDS (type) - 1)
 485             fputs_filtered (", ", stream);
 486         }
 487       fprintf_filtered (stream, " )");
 488       break;
 489
 490     default:
 491       error (_("Invalid F77 type code %d in symbol table."), TYPE_CODE (type));
 492     }
 493   gdb_flush (stream);
 494   return 0;
 495 }
 496
 497 static void
 498 list_all_visible_commons (char *funname)
 499 {
 500   SAVED_F77_COMMON_PTR tmp;
 501
 502   tmp = head_common_list;
 503
 504   printf_filtered (_("All COMMON blocks visible at this level:\n\n"));
 505
 506   while (tmp != NULL)
 507     {
 508       if (strcmp (tmp->owning_function, funname) == 0)
 509         printf_filtered ("%s\n", tmp->name);
 510
 511       tmp = tmp->next;
 512     }
 513 }
 514
 515 /* This function is used to print out the values in a given COMMON
 516    block.  It will always use the most local common block of the
 517    given name.  */
 518
 519 static void
 520 info_common_command (char *comname, int from_tty)
 521 {
 522   SAVED_F77_COMMON_PTR the_common;
 523   COMMON_ENTRY_PTR entry;
 524   struct frame_info *fi;
 525   char *funname = 0;
 526   struct symbol *func;
 527
 528   /* We have been told to display the contents of F77 COMMON
 529      block supposedly visible in this function.  Let us
 530      first make sure that it is visible and if so, let
 531      us display its contents.  */
 532
 533   fi = get_selected_frame (_("No frame selected"));
 534
 535   /* The following is generally ripped off from stack.c's routine
 536      print_frame_info().  */
 537
 538   func = find_pc_function (get_frame_pc (fi));
 539   if (func)
 540     {
 541       /* In certain pathological cases, the symtabs give the wrong
 542          function (when we are in the first function in a file which
 543          is compiled without debugging symbols, the previous function
 544          is compiled with debugging symbols, and the "foo.o" symbol
 545          that is supposed to tell us where the file with debugging symbols
 546          ends has been truncated by ar because it is longer than 15
 547          characters).
 548
 549          So look in the minimal symbol tables as well, and if it comes
 550          up with a larger address for the function use that instead.
 551          I don't think this can ever cause any problems; there shouldn't
 552          be any minimal symbols in the middle of a function.
 553          FIXME:  (Not necessarily true.  What about text labels?)  */
 554
 555       struct minimal_symbol *msymbol =
 556         lookup_minimal_symbol_by_pc (get_frame_pc (fi));
 557
 558       if (msymbol != NULL
 559           && (SYMBOL_VALUE_ADDRESS (msymbol)
 560               > BLOCK_START (SYMBOL_BLOCK_VALUE (func))))
 561         funname = SYMBOL_LINKAGE_NAME (msymbol);
 562       else
 563         funname = SYMBOL_LINKAGE_NAME (func);
 564     }
 565   else
 566     {
 567       struct minimal_symbol *msymbol =
 568         lookup_minimal_symbol_by_pc (get_frame_pc (fi));
 569
 570       if (msymbol != NULL)
 571         funname = SYMBOL_LINKAGE_NAME (msymbol);
 572       else /* Got no 'funname', code below will fail.  */
 573         error (_("No function found for frame."));
 574     }
 575
 576   /* If comname is NULL, we assume the user wishes to see the
 577      which COMMON blocks are visible here and then return.  */
 578
 579   if (comname == 0)
 580     {
 581       list_all_visible_commons (funname);
 582       return;
 583     }
 584
 585   the_common = find_common_for_function (comname, funname);
 586
 587   if (the_common)
 588     {
 589       if (strcmp (comname, BLANK_COMMON_NAME_LOCAL) == 0)
 590         printf_filtered (_("Contents of blank COMMON block:\n"));
 591       else
 592         printf_filtered (_("Contents of F77 COMMON block '%s':\n"), comname);
 593
 594       printf_filtered ("\n");
 595       entry = the_common->entries;
 596
 597       while (entry != NULL)
 598         {
 599           print_variable_and_value (NULL, entry->symbol, fi, gdb_stdout, 0);
 600           entry = entry->next;
 601         }
 602     }
 603   else
 604     printf_filtered (_("Cannot locate the common block %s in function '%s'\n"),
 605                      comname, funname);
 606 }
 607
 608 /* This function is used to determine whether there is a
 609    F77 common block visible at the current scope called 'comname'.  */
 610
 611 #if 0
 612 static int
 613 there_is_a_visible_common_named (char *comname)
 614 {
 615   SAVED_F77_COMMON_PTR the_common;
 616   struct frame_info *fi;
 617   char *funname = 0;
 618   struct symbol *func;
 619
 620   if (comname == NULL)
 621     error (_("Cannot deal with NULL common name!"));
 622
 623   fi = get_selected_frame (_("No frame selected"));
 624
 625   /* The following is generally ripped off from stack.c's routine
 626      print_frame_info().  */
 627
 628   func = find_pc_function (fi->pc);
 629   if (func)
 630     {
 631       /* In certain pathological cases, the symtabs give the wrong
 632          function (when we are in the first function in a file which
 633          is compiled without debugging symbols, the previous function
 634          is compiled with debugging symbols, and the "foo.o" symbol
 635          that is supposed to tell us where the file with debugging symbols
 636          ends has been truncated by ar because it is longer than 15
 637          characters).
 638
 639          So look in the minimal symbol tables as well, and if it comes
 640          up with a larger address for the function use that instead.
 641          I don't think this can ever cause any problems; there shouldn't
 642          be any minimal symbols in the middle of a function.
 643          FIXME:  (Not necessarily true.  What about text labels?)  */
 644
 645       struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (fi->pc);
 646
 647       if (msymbol != NULL
 648           && (SYMBOL_VALUE_ADDRESS (msymbol)
 649               > BLOCK_START (SYMBOL_BLOCK_VALUE (func))))
 650         funname = SYMBOL_LINKAGE_NAME (msymbol);
 651       else
 652         funname = SYMBOL_LINKAGE_NAME (func);
 653     }
 654   else
 655     {
 656       struct minimal_symbol *msymbol =
 657         lookup_minimal_symbol_by_pc (fi->pc);
 658
 659       if (msymbol != NULL)
 660         funname = SYMBOL_LINKAGE_NAME (msymbol);
 661     }
 662
 663   the_common = find_common_for_function (comname, funname);
 664
 665   return (the_common ? 1 : 0);
 666 }
 667 #endif
 668
 669 void
 670 _initialize_f_valprint (void)
 671 {
 672   add_info ("common", info_common_command,
 673             _("Print out the values contained in a Fortran COMMON block."));
 674   if (xdb_commands)
 675     add_com ("lc", class_info, info_common_command,
 676              _("Print out the values contained in a Fortran COMMON block."));
 677 }