gdb/f-lang.c

   1 /* Fortran language support routines for GDB, the GNU debugger.
   2
   3    Copyright (C) 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003,
   4    2004, 2005, 2007 Free Software Foundation, Inc.
   5
   6    Contributed by Motorola.  Adapted from the C parser by Farooq Butt
   7    (fmbutt@engage.sps.mot.com).
   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 2 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, write to the Free Software
  23    Foundation, Inc., 51 Franklin Street, Fifth Floor,
  24    Boston, MA 02110-1301, USA.  */
  25
  26 #include "defs.h"
  27 #include "gdb_string.h"
  28 #include "symtab.h"
  29 #include "gdbtypes.h"
  30 #include "expression.h"
  31 #include "parser-defs.h"
  32 #include "language.h"
  33 #include "f-lang.h"
  34 #include "valprint.h"
  35 #include "value.h"
  36
  37 /* The built-in types of F77.  FIXME: integer*4 is missing, plain
  38    logical is missing (builtin_type_logical is logical*4).  */
  39
  40 struct type *builtin_type_f_character;
  41 struct type *builtin_type_f_logical;
  42 struct type *builtin_type_f_logical_s1;
  43 struct type *builtin_type_f_logical_s2;
  44 struct type *builtin_type_f_integer;
  45 struct type *builtin_type_f_integer_s2;
  46 struct type *builtin_type_f_real;
  47 struct type *builtin_type_f_real_s8;
  48 struct type *builtin_type_f_real_s16;
  49 struct type *builtin_type_f_complex_s8;
  50 struct type *builtin_type_f_complex_s16;
  51 struct type *builtin_type_f_complex_s32;
  52 struct type *builtin_type_f_void;
  53
  54 /* Following is dubious stuff that had been in the xcoff reader. */
  55
  56 struct saved_fcn
  57   {
  58     long line_offset;           /* Line offset for function */
  59     struct saved_fcn *next;
  60   };
  61
  62
  63 struct saved_bf_symnum
  64   {
  65     long symnum_fcn;            /* Symnum of function (i.e. .function directive) */
  66     long symnum_bf;             /* Symnum of .bf for this function */
  67     struct saved_bf_symnum *next;
  68   };
  69
  70 typedef struct saved_fcn SAVED_FUNCTION, *SAVED_FUNCTION_PTR;
  71 typedef struct saved_bf_symnum SAVED_BF, *SAVED_BF_PTR;
  72
  73 /* Local functions */
  74
  75 extern void _initialize_f_language (void);
  76 #if 0
  77 static void clear_function_list (void);
  78 static long get_bf_for_fcn (long);
  79 static void clear_bf_list (void);
  80 static void patch_all_commons_by_name (char *, CORE_ADDR, int);
  81 static SAVED_F77_COMMON_PTR find_first_common_named (char *);
  82 static void add_common_entry (struct symbol *);
  83 static void add_common_block (char *, CORE_ADDR, int, char *);
  84 static SAVED_FUNCTION *allocate_saved_function_node (void);
  85 static SAVED_BF_PTR allocate_saved_bf_node (void);
  86 static COMMON_ENTRY_PTR allocate_common_entry_node (void);
  87 static SAVED_F77_COMMON_PTR allocate_saved_f77_common_node (void);
  88 static void patch_common_entries (SAVED_F77_COMMON_PTR, CORE_ADDR, int);
  89 #endif
  90
  91 static struct type *f_create_fundamental_type (struct objfile *, int);
  92 static void f_printchar (int c, struct ui_file * stream);
  93 static void f_emit_char (int c, struct ui_file * stream, int quoter);
  94
  95 /* Print the character C on STREAM as part of the contents of a literal
  96    string whose delimiter is QUOTER.  Note that that format for printing
  97    characters and strings is language specific.
  98    FIXME:  This is a copy of the same function from c-exp.y.  It should
  99    be replaced with a true F77 version.  */
 100
 101 static void
 102 f_emit_char (int c, struct ui_file *stream, int quoter)
 103 {
 104   c &= 0xFF;                    /* Avoid sign bit follies */
 105
 106   if (PRINT_LITERAL_FORM (c))
 107     {
 108       if (c == '\\' || c == quoter)
 109         fputs_filtered ("\\", stream);
 110       fprintf_filtered (stream, "%c", c);
 111     }
 112   else
 113     {
 114       switch (c)
 115         {
 116         case '\n':
 117           fputs_filtered ("\\n", stream);
 118           break;
 119         case '\b':
 120           fputs_filtered ("\\b", stream);
 121           break;
 122         case '\t':
 123           fputs_filtered ("\\t", stream);
 124           break;
 125         case '\f':
 126           fputs_filtered ("\\f", stream);
 127           break;
 128         case '\r':
 129           fputs_filtered ("\\r", stream);
 130           break;
 131         case '\033':
 132           fputs_filtered ("\\e", stream);
 133           break;
 134         case '\007':
 135           fputs_filtered ("\\a", stream);
 136           break;
 137         default:
 138           fprintf_filtered (stream, "\\%.3o", (unsigned int) c);
 139           break;
 140         }
 141     }
 142 }
 143
 144 /* FIXME:  This is a copy of the same function from c-exp.y.  It should
 145    be replaced with a true F77version. */
 146
 147 static void
 148 f_printchar (int c, struct ui_file *stream)
 149 {
 150   fputs_filtered ("'", stream);
 151   LA_EMIT_CHAR (c, stream, '\'');
 152   fputs_filtered ("'", stream);
 153 }
 154
 155 /* Print the character string STRING, printing at most LENGTH characters.
 156    Printing stops early if the number hits print_max; repeat counts
 157    are printed as appropriate.  Print ellipses at the end if we
 158    had to stop before printing LENGTH characters, or if FORCE_ELLIPSES.
 159    FIXME:  This is a copy of the same function from c-exp.y.  It should
 160    be replaced with a true F77 version. */
 161
 162 static void
 163 f_printstr (struct ui_file *stream, const gdb_byte *string,
 164             unsigned int length, int width, int force_ellipses)
 165 {
 166   unsigned int i;
 167   unsigned int things_printed = 0;
 168   int in_quotes = 0;
 169   int need_comma = 0;
 170
 171   if (length == 0)
 172     {
 173       fputs_filtered ("''", gdb_stdout);
 174       return;
 175     }
 176
 177   for (i = 0; i < length && things_printed < print_max; ++i)
 178     {
 179       /* Position of the character we are examining
 180          to see whether it is repeated.  */
 181       unsigned int rep1;
 182       /* Number of repetitions we have detected so far.  */
 183       unsigned int reps;
 184
 185       QUIT;
 186
 187       if (need_comma)
 188         {
 189           fputs_filtered (", ", stream);
 190           need_comma = 0;
 191         }
 192
 193       rep1 = i + 1;
 194       reps = 1;
 195       while (rep1 < length && string[rep1] == string[i])
 196         {
 197           ++rep1;
 198           ++reps;
 199         }
 200
 201       if (reps > repeat_count_threshold)
 202         {
 203           if (in_quotes)
 204             {
 205               if (inspect_it)
 206                 fputs_filtered ("\\', ", stream);
 207               else
 208                 fputs_filtered ("', ", stream);
 209               in_quotes = 0;
 210             }
 211           f_printchar (string[i], stream);
 212           fprintf_filtered (stream, " <repeats %u times>", reps);
 213           i = rep1 - 1;
 214           things_printed += repeat_count_threshold;
 215           need_comma = 1;
 216         }
 217       else
 218         {
 219           if (!in_quotes)
 220             {
 221               if (inspect_it)
 222                 fputs_filtered ("\\'", stream);
 223               else
 224                 fputs_filtered ("'", stream);
 225               in_quotes = 1;
 226             }
 227           LA_EMIT_CHAR (string[i], stream, '"');
 228           ++things_printed;
 229         }
 230     }
 231
 232   /* Terminate the quotes if necessary.  */
 233   if (in_quotes)
 234     {
 235       if (inspect_it)
 236         fputs_filtered ("\\'", stream);
 237       else
 238         fputs_filtered ("'", stream);
 239     }
 240
 241   if (force_ellipses || i < length)
 242     fputs_filtered ("...", stream);
 243 }
 244
 245 /* FIXME:  This is a copy of c_create_fundamental_type(), before
 246    all the non-C types were stripped from it.  Needs to be fixed
 247    by an experienced F77 programmer. */
 248
 249 static struct type *
 250 f_create_fundamental_type (struct objfile *objfile, int typeid)
 251 {
 252   struct type *type = NULL;
 253
 254   switch (typeid)
 255     {
 256     case FT_VOID:
 257       type = init_type (TYPE_CODE_VOID,
 258                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 259                         0, "VOID", objfile);
 260       break;
 261     case FT_BOOLEAN:
 262       type = init_type (TYPE_CODE_BOOL,
 263                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 264                         TYPE_FLAG_UNSIGNED, "boolean", objfile);
 265       break;
 266     case FT_STRING:
 267       type = init_type (TYPE_CODE_STRING,
 268                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 269                         0, "string", objfile);
 270       break;
 271     case FT_CHAR:
 272       type = init_type (TYPE_CODE_INT,
 273                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 274                         0, "character", objfile);
 275       break;
 276     case FT_SIGNED_CHAR:
 277       type = init_type (TYPE_CODE_INT,
 278                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 279                         0, "integer*1", objfile);
 280       break;
 281     case FT_UNSIGNED_CHAR:
 282       type = init_type (TYPE_CODE_BOOL,
 283                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 284                         TYPE_FLAG_UNSIGNED, "logical*1", objfile);
 285       break;
 286     case FT_SHORT:
 287       type = init_type (TYPE_CODE_INT,
 288                         gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
 289                         0, "integer*2", objfile);
 290       break;
 291     case FT_SIGNED_SHORT:
 292       type = init_type (TYPE_CODE_INT,
 293                         gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
 294                         0, "short", objfile);   /* FIXME-fnf */
 295       break;
 296     case FT_UNSIGNED_SHORT:
 297       type = init_type (TYPE_CODE_BOOL,
 298                         gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
 299                         TYPE_FLAG_UNSIGNED, "logical*2", objfile);
 300       break;
 301     case FT_INTEGER:
 302       type = init_type (TYPE_CODE_INT,
 303                         gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 304                         0, "integer*4", objfile);
 305       break;
 306     case FT_SIGNED_INTEGER:
 307       type = init_type (TYPE_CODE_INT,
 308                         gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 309                         0, "integer", objfile);         /* FIXME -fnf */
 310       break;
 311     case FT_UNSIGNED_INTEGER:
 312       type = init_type (TYPE_CODE_BOOL,
 313                         gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 314                         TYPE_FLAG_UNSIGNED, "logical*4", objfile);
 315       break;
 316     case FT_FIXED_DECIMAL:
 317       type = init_type (TYPE_CODE_INT,
 318                         gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 319                         0, "fixed decimal", objfile);
 320       break;
 321     case FT_LONG:
 322       type = init_type (TYPE_CODE_INT,
 323                         gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
 324                         0, "long", objfile);
 325       break;
 326     case FT_SIGNED_LONG:
 327       type = init_type (TYPE_CODE_INT,
 328                         gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
 329                         0, "long", objfile);    /* FIXME -fnf */
 330       break;
 331     case FT_UNSIGNED_LONG:
 332       type = init_type (TYPE_CODE_INT,
 333                         gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
 334                         TYPE_FLAG_UNSIGNED, "unsigned long", objfile);
 335       break;
 336     case FT_LONG_LONG:
 337       type = init_type (TYPE_CODE_INT,
 338                         gdbarch_long_long_bit (current_gdbarch)
 339                          / TARGET_CHAR_BIT,
 340                         0, "long long", objfile);
 341       break;
 342     case FT_SIGNED_LONG_LONG:
 343       type = init_type (TYPE_CODE_INT,
 344                         gdbarch_long_long_bit (current_gdbarch)
 345                          / TARGET_CHAR_BIT,
 346                         0, "signed long long", objfile);
 347       break;
 348     case FT_UNSIGNED_LONG_LONG:
 349       type = init_type (TYPE_CODE_INT,
 350                         gdbarch_long_long_bit (current_gdbarch)
 351                          / TARGET_CHAR_BIT,
 352                         TYPE_FLAG_UNSIGNED, "unsigned long long", objfile);
 353       break;
 354     case FT_FLOAT:
 355       type = init_type (TYPE_CODE_FLT,
 356                         gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
 357                         0, "real", objfile);
 358       break;
 359     case FT_DBL_PREC_FLOAT:
 360       type = init_type (TYPE_CODE_FLT,
 361                         gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 362                         0, "real*8", objfile);
 363       break;
 364     case FT_FLOAT_DECIMAL:
 365       type = init_type (TYPE_CODE_FLT,
 366                         gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 367                         0, "floating decimal", objfile);
 368       break;
 369     case FT_EXT_PREC_FLOAT:
 370       type = init_type (TYPE_CODE_FLT,
 371                         gdbarch_long_double_bit (current_gdbarch)
 372                           / TARGET_CHAR_BIT,
 373                         0, "real*16", objfile);
 374       break;
 375     case FT_COMPLEX:
 376       type = init_type (TYPE_CODE_COMPLEX,
 377                         2 * gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
 378                         0, "complex*8", objfile);
 379       TYPE_TARGET_TYPE (type) = builtin_type_f_real;
 380       break;
 381     case FT_DBL_PREC_COMPLEX:
 382       type = init_type (TYPE_CODE_COMPLEX,
 383                         2 * gdbarch_double_bit (current_gdbarch)
 384                           / TARGET_CHAR_BIT,
 385                         0, "complex*16", objfile);
 386       TYPE_TARGET_TYPE (type) = builtin_type_f_real_s8;
 387       break;
 388     case FT_EXT_PREC_COMPLEX:
 389       type = init_type (TYPE_CODE_COMPLEX,
 390                         2 * gdbarch_long_double_bit (current_gdbarch)
 391                           / TARGET_CHAR_BIT,
 392                         0, "complex*32", objfile);
 393       TYPE_TARGET_TYPE (type) = builtin_type_f_real_s16;
 394       break;
 395     default:
 396       /* FIXME:  For now, if we are asked to produce a type not in this
 397          language, create the equivalent of a C integer type with the
 398          name "<?type?>".  When all the dust settles from the type
 399          reconstruction work, this should probably become an error. */
 400       type = init_type (TYPE_CODE_INT,
 401                         gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 402                         0, "<?type?>", objfile);
 403       warning (_("internal error: no F77 fundamental type %d"), typeid);
 404       break;
 405     }
 406   return (type);
 407 }
 408 \f
 409
 410 /* Table of operators and their precedences for printing expressions.  */
 411
 412 static const struct op_print f_op_print_tab[] =
 413 {
 414   {"+", BINOP_ADD, PREC_ADD, 0},
 415   {"+", UNOP_PLUS, PREC_PREFIX, 0},
 416   {"-", BINOP_SUB, PREC_ADD, 0},
 417   {"-", UNOP_NEG, PREC_PREFIX, 0},
 418   {"*", BINOP_MUL, PREC_MUL, 0},
 419   {"/", BINOP_DIV, PREC_MUL, 0},
 420   {"DIV", BINOP_INTDIV, PREC_MUL, 0},
 421   {"MOD", BINOP_REM, PREC_MUL, 0},
 422   {"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
 423   {".OR.", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
 424   {".AND.", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
 425   {".NOT.", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
 426   {".EQ.", BINOP_EQUAL, PREC_EQUAL, 0},
 427   {".NE.", BINOP_NOTEQUAL, PREC_EQUAL, 0},
 428   {".LE.", BINOP_LEQ, PREC_ORDER, 0},
 429   {".GE.", BINOP_GEQ, PREC_ORDER, 0},
 430   {".GT.", BINOP_GTR, PREC_ORDER, 0},
 431   {".LT.", BINOP_LESS, PREC_ORDER, 0},
 432   {"**", UNOP_IND, PREC_PREFIX, 0},
 433   {"@", BINOP_REPEAT, PREC_REPEAT, 0},
 434   {NULL, 0, 0, 0}
 435 };
 436 \f
 437 struct type **const (f_builtin_types[]) =
 438 {
 439   &builtin_type_f_character,
 440     &builtin_type_f_logical,
 441     &builtin_type_f_logical_s1,
 442     &builtin_type_f_logical_s2,
 443     &builtin_type_f_integer,
 444     &builtin_type_f_integer_s2,
 445     &builtin_type_f_real,
 446     &builtin_type_f_real_s8,
 447     &builtin_type_f_real_s16,
 448     &builtin_type_f_complex_s8,
 449     &builtin_type_f_complex_s16,
 450 #if 0
 451     &builtin_type_f_complex_s32,
 452 #endif
 453     &builtin_type_f_void,
 454     0
 455 };
 456
 457 /* This is declared in c-lang.h but it is silly to import that file for what
 458    is already just a hack. */
 459 extern int c_value_print (struct value *, struct ui_file *, int,
 460                           enum val_prettyprint);
 461
 462 const struct language_defn f_language_defn =
 463 {
 464   "fortran",
 465   language_fortran,
 466   f_builtin_types,
 467   range_check_on,
 468   type_check_on,
 469   case_sensitive_off,
 470   array_column_major,
 471   &exp_descriptor_standard,
 472   f_parse,                      /* parser */
 473   f_error,                      /* parser error function */
 474   null_post_parser,
 475   f_printchar,                  /* Print character constant */
 476   f_printstr,                   /* function to print string constant */
 477   f_emit_char,                  /* Function to print a single character */
 478   f_create_fundamental_type,    /* Create fundamental type in this language */
 479   f_print_type,                 /* Print a type using appropriate syntax */
 480   f_val_print,                  /* Print a value using appropriate syntax */
 481   c_value_print,                /* FIXME */
 482   NULL,                         /* Language specific skip_trampoline */
 483   value_of_this,                /* value_of_this */
 484   basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
 485   basic_lookup_transparent_type,/* lookup_transparent_type */
 486   NULL,                         /* Language specific symbol demangler */
 487   NULL,                         /* Language specific class_name_from_physname */
 488   f_op_print_tab,               /* expression operators for printing */
 489   0,                            /* arrays are first-class (not c-style) */
 490   1,                            /* String lower bound */
 491   &builtin_type_f_character,    /* Type of string elements */
 492   default_word_break_characters,
 493   NULL, /* FIXME: la_language_arch_info.  */
 494   default_print_array_index,
 495   LANG_MAGIC
 496 };
 497
 498 static void
 499 build_fortran_types (void)
 500 {
 501   builtin_type_f_void =
 502     init_type (TYPE_CODE_VOID, 1,
 503                0,
 504                "VOID", (struct objfile *) NULL);
 505
 506   builtin_type_f_character =
 507     init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 508                0,
 509                "character", (struct objfile *) NULL);
 510
 511   builtin_type_f_logical_s1 =
 512     init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 513                TYPE_FLAG_UNSIGNED,
 514                "logical*1", (struct objfile *) NULL);
 515
 516   builtin_type_f_integer_s2 =
 517     init_type (TYPE_CODE_INT,
 518                gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
 519                0, "integer*2", (struct objfile *) NULL);
 520
 521   builtin_type_f_logical_s2 =
 522     init_type (TYPE_CODE_BOOL,
 523                gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
 524                TYPE_FLAG_UNSIGNED, "logical*2", (struct objfile *) NULL);
 525
 526   builtin_type_f_integer =
 527     init_type (TYPE_CODE_INT,
 528                gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 529                0, "integer", (struct objfile *) NULL);
 530
 531   builtin_type_f_logical =
 532     init_type (TYPE_CODE_BOOL,
 533                gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 534                TYPE_FLAG_UNSIGNED, "logical*4", (struct objfile *) NULL);
 535
 536   builtin_type_f_real =
 537     init_type (TYPE_CODE_FLT,
 538                gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
 539                0,
 540                "real", (struct objfile *) NULL);
 541
 542   builtin_type_f_real_s8 =
 543     init_type (TYPE_CODE_FLT,
 544                gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 545                0,
 546                "real*8", (struct objfile *) NULL);
 547
 548   builtin_type_f_real_s16 =
 549     init_type (TYPE_CODE_FLT,
 550                gdbarch_long_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 551                0,
 552                "real*16", (struct objfile *) NULL);
 553
 554   builtin_type_f_complex_s8 =
 555     init_type (TYPE_CODE_COMPLEX,
 556                2 * gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
 557                0,
 558                "complex*8", (struct objfile *) NULL);
 559   TYPE_TARGET_TYPE (builtin_type_f_complex_s8) = builtin_type_f_real;
 560
 561   builtin_type_f_complex_s16 =
 562     init_type (TYPE_CODE_COMPLEX,
 563                2 * gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 564                0,
 565                "complex*16", (struct objfile *) NULL);
 566   TYPE_TARGET_TYPE (builtin_type_f_complex_s16) = builtin_type_f_real_s8;
 567
 568   /* We have a new size == 4 double floats for the
 569      complex*32 data type */
 570
 571   builtin_type_f_complex_s32 =
 572     init_type (TYPE_CODE_COMPLEX,
 573                2 * gdbarch_long_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 574                0,
 575                "complex*32", (struct objfile *) NULL);
 576   TYPE_TARGET_TYPE (builtin_type_f_complex_s32) = builtin_type_f_real_s16;
 577 }
 578
 579 void
 580 _initialize_f_language (void)
 581 {
 582   build_fortran_types ();
 583
 584   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_character);
 585   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_logical);
 586   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_logical_s1);
 587   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_logical_s2);
 588   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_integer);
 589   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_integer_s2);
 590   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_real);
 591   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_real_s8);
 592   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_real_s16);
 593   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_complex_s8);
 594   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_complex_s16);
 595   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_complex_s32);
 596   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_void);
 597   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_string);
 598   deprecated_register_gdbarch_swap (NULL, 0, build_fortran_types);
 599
 600   builtin_type_string =
 601     init_type (TYPE_CODE_STRING, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 602                0,
 603                "character string", (struct objfile *) NULL);
 604
 605   add_language (&f_language_defn);
 606 }
 607
 608 #if 0
 609 static SAVED_BF_PTR
 610 allocate_saved_bf_node (void)
 611 {
 612   SAVED_BF_PTR new;
 613
 614   new = (SAVED_BF_PTR) xmalloc (sizeof (SAVED_BF));
 615   return (new);
 616 }
 617
 618 static SAVED_FUNCTION *
 619 allocate_saved_function_node (void)
 620 {
 621   SAVED_FUNCTION *new;
 622
 623   new = (SAVED_FUNCTION *) xmalloc (sizeof (SAVED_FUNCTION));
 624   return (new);
 625 }
 626
 627 static SAVED_F77_COMMON_PTR
 628 allocate_saved_f77_common_node (void)
 629 {
 630   SAVED_F77_COMMON_PTR new;
 631
 632   new = (SAVED_F77_COMMON_PTR) xmalloc (sizeof (SAVED_F77_COMMON));
 633   return (new);
 634 }
 635
 636 static COMMON_ENTRY_PTR
 637 allocate_common_entry_node (void)
 638 {
 639   COMMON_ENTRY_PTR new;
 640
 641   new = (COMMON_ENTRY_PTR) xmalloc (sizeof (COMMON_ENTRY));
 642   return (new);
 643 }
 644 #endif
 645
 646 SAVED_F77_COMMON_PTR head_common_list = NULL;   /* Ptr to 1st saved COMMON  */
 647 SAVED_F77_COMMON_PTR tail_common_list = NULL;   /* Ptr to last saved COMMON  */
 648 SAVED_F77_COMMON_PTR current_common = NULL;     /* Ptr to current COMMON */
 649
 650 #if 0
 651 static SAVED_BF_PTR saved_bf_list = NULL;       /* Ptr to (.bf,function)
 652                                                    list */
 653 static SAVED_BF_PTR saved_bf_list_end = NULL;   /* Ptr to above list's end */
 654 static SAVED_BF_PTR current_head_bf_list = NULL;        /* Current head of above list
 655                                                          */
 656
 657 static SAVED_BF_PTR tmp_bf_ptr; /* Generic temporary for use
 658                                    in macros */
 659
 660 /* The following function simply enters a given common block onto
 661    the global common block chain */
 662
 663 static void
 664 add_common_block (char *name, CORE_ADDR offset, int secnum, char *func_stab)
 665 {
 666   SAVED_F77_COMMON_PTR tmp;
 667   char *c, *local_copy_func_stab;
 668
 669   /* If the COMMON block we are trying to add has a blank
 670      name (i.e. "#BLNK_COM") then we set it to __BLANK
 671      because the darn "#" character makes GDB's input
 672      parser have fits. */
 673
 674
 675   if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0
 676       || strcmp (name, BLANK_COMMON_NAME_MF77) == 0)
 677     {
 678
 679       xfree (name);
 680       name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
 681       strcpy (name, BLANK_COMMON_NAME_LOCAL);
 682     }
 683
 684   tmp = allocate_saved_f77_common_node ();
 685
 686   local_copy_func_stab = xmalloc (strlen (func_stab) + 1);
 687   strcpy (local_copy_func_stab, func_stab);
 688
 689   tmp->name = xmalloc (strlen (name) + 1);
 690
 691   /* local_copy_func_stab is a stabstring, let us first extract the
 692      function name from the stab by NULLing out the ':' character. */
 693
 694
 695   c = NULL;
 696   c = strchr (local_copy_func_stab, ':');
 697
 698   if (c)
 699     *c = '\0';
 700   else
 701     error (_("Malformed function STAB found in add_common_block()"));
 702
 703
 704   tmp->owning_function = xmalloc (strlen (local_copy_func_stab) + 1);
 705
 706   strcpy (tmp->owning_function, local_copy_func_stab);
 707
 708   strcpy (tmp->name, name);
 709   tmp->offset = offset;
 710   tmp->next = NULL;
 711   tmp->entries = NULL;
 712   tmp->secnum = secnum;
 713
 714   current_common = tmp;
 715
 716   if (head_common_list == NULL)
 717     {
 718       head_common_list = tail_common_list = tmp;
 719     }
 720   else
 721     {
 722       tail_common_list->next = tmp;
 723       tail_common_list = tmp;
 724     }
 725 }
 726 #endif
 727
 728 /* The following function simply enters a given common entry onto
 729    the "current_common" block that has been saved away. */
 730
 731 #if 0
 732 static void
 733 add_common_entry (struct symbol *entry_sym_ptr)
 734 {
 735   COMMON_ENTRY_PTR tmp;
 736
 737
 738
 739   /* The order of this list is important, since
 740      we expect the entries to appear in decl.
 741      order when we later issue "info common" calls */
 742
 743   tmp = allocate_common_entry_node ();
 744
 745   tmp->next = NULL;
 746   tmp->symbol = entry_sym_ptr;
 747
 748   if (current_common == NULL)
 749     error (_("Attempt to add COMMON entry with no block open!"));
 750   else
 751     {
 752       if (current_common->entries == NULL)
 753         {
 754           current_common->entries = tmp;
 755           current_common->end_of_entries = tmp;
 756         }
 757       else
 758         {
 759           current_common->end_of_entries->next = tmp;
 760           current_common->end_of_entries = tmp;
 761         }
 762     }
 763 }
 764 #endif
 765
 766 /* This routine finds the first encountred COMMON block named "name" */
 767
 768 #if 0
 769 static SAVED_F77_COMMON_PTR
 770 find_first_common_named (char *name)
 771 {
 772
 773   SAVED_F77_COMMON_PTR tmp;
 774
 775   tmp = head_common_list;
 776
 777   while (tmp != NULL)
 778     {
 779       if (strcmp (tmp->name, name) == 0)
 780         return (tmp);
 781       else
 782         tmp = tmp->next;
 783     }
 784   return (NULL);
 785 }
 786 #endif
 787
 788 /* This routine finds the first encountred COMMON block named "name"
 789    that belongs to function funcname */
 790
 791 SAVED_F77_COMMON_PTR
 792 find_common_for_function (char *name, char *funcname)
 793 {
 794
 795   SAVED_F77_COMMON_PTR tmp;
 796
 797   tmp = head_common_list;
 798
 799   while (tmp != NULL)
 800     {
 801       if (DEPRECATED_STREQ (tmp->name, name)
 802           && DEPRECATED_STREQ (tmp->owning_function, funcname))
 803         return (tmp);
 804       else
 805         tmp = tmp->next;
 806     }
 807   return (NULL);
 808 }
 809
 810
 811 #if 0
 812
 813 /* The following function is called to patch up the offsets
 814    for the statics contained in the COMMON block named
 815    "name."  */
 816
 817 static void
 818 patch_common_entries (SAVED_F77_COMMON_PTR blk, CORE_ADDR offset, int secnum)
 819 {
 820   COMMON_ENTRY_PTR entry;
 821
 822   blk->offset = offset;         /* Keep this around for future use. */
 823
 824   entry = blk->entries;
 825
 826   while (entry != NULL)
 827     {
 828       SYMBOL_VALUE (entry->symbol) += offset;
 829       SYMBOL_SECTION (entry->symbol) = secnum;
 830
 831       entry = entry->next;
 832     }
 833   blk->secnum = secnum;
 834 }
 835
 836 /* Patch all commons named "name" that need patching.Since COMMON
 837    blocks occur with relative infrequency, we simply do a linear scan on
 838    the name.  Eventually, the best way to do this will be a
 839    hashed-lookup.  Secnum is the section number for the .bss section
 840    (which is where common data lives). */
 841
 842 static void
 843 patch_all_commons_by_name (char *name, CORE_ADDR offset, int secnum)
 844 {
 845
 846   SAVED_F77_COMMON_PTR tmp;
 847
 848   /* For blank common blocks, change the canonical reprsentation
 849      of a blank name */
 850
 851   if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0
 852       || strcmp (name, BLANK_COMMON_NAME_MF77) == 0)
 853     {
 854       xfree (name);
 855       name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
 856       strcpy (name, BLANK_COMMON_NAME_LOCAL);
 857     }
 858
 859   tmp = head_common_list;
 860
 861   while (tmp != NULL)
 862     {
 863       if (COMMON_NEEDS_PATCHING (tmp))
 864         if (strcmp (tmp->name, name) == 0)
 865           patch_common_entries (tmp, offset, secnum);
 866
 867       tmp = tmp->next;
 868     }
 869 }
 870 #endif
 871
 872 /* This macro adds the symbol-number for the start of the function
 873    (the symbol number of the .bf) referenced by symnum_fcn to a
 874    list.  This list, in reality should be a FIFO queue but since
 875    #line pragmas sometimes cause line ranges to get messed up
 876    we simply create a linear list.  This list can then be searched
 877    first by a queueing algorithm and upon failure fall back to
 878    a linear scan. */
 879
 880 #if 0
 881 #define ADD_BF_SYMNUM(bf_sym,fcn_sym) \
 882   \
 883   if (saved_bf_list == NULL) \
 884 { \
 885     tmp_bf_ptr = allocate_saved_bf_node(); \
 886       \
 887         tmp_bf_ptr->symnum_bf = (bf_sym); \
 888           tmp_bf_ptr->symnum_fcn = (fcn_sym);  \
 889             tmp_bf_ptr->next = NULL; \
 890               \
 891                 current_head_bf_list = saved_bf_list = tmp_bf_ptr; \
 892                   saved_bf_list_end = tmp_bf_ptr; \
 893                   } \
 894 else \
 895 {  \
 896      tmp_bf_ptr = allocate_saved_bf_node(); \
 897        \
 898          tmp_bf_ptr->symnum_bf = (bf_sym);  \
 899            tmp_bf_ptr->symnum_fcn = (fcn_sym);  \
 900              tmp_bf_ptr->next = NULL;  \
 901                \
 902                  saved_bf_list_end->next = tmp_bf_ptr;  \
 903                    saved_bf_list_end = tmp_bf_ptr; \
 904                    }
 905 #endif
 906
 907 /* This function frees the entire (.bf,function) list */
 908
 909 #if 0
 910 static void
 911 clear_bf_list (void)
 912 {
 913
 914   SAVED_BF_PTR tmp = saved_bf_list;
 915   SAVED_BF_PTR next = NULL;
 916
 917   while (tmp != NULL)
 918     {
 919       next = tmp->next;
 920       xfree (tmp);
 921       tmp = next;
 922     }
 923   saved_bf_list = NULL;
 924 }
 925 #endif
 926
 927 int global_remote_debug;
 928
 929 #if 0
 930
 931 static long
 932 get_bf_for_fcn (long the_function)
 933 {
 934   SAVED_BF_PTR tmp;
 935   int nprobes = 0;
 936
 937   /* First use a simple queuing algorithm (i.e. look and see if the
 938      item at the head of the queue is the one you want)  */
 939
 940   if (saved_bf_list == NULL)
 941     internal_error (__FILE__, __LINE__,
 942                     _("cannot get .bf node off empty list"));
 943
 944   if (current_head_bf_list != NULL)
 945     if (current_head_bf_list->symnum_fcn == the_function)
 946       {
 947         if (global_remote_debug)
 948           fprintf_unfiltered (gdb_stderr, "*");
 949
 950         tmp = current_head_bf_list;
 951         current_head_bf_list = current_head_bf_list->next;
 952         return (tmp->symnum_bf);
 953       }
 954
 955   /* If the above did not work (probably because #line directives were
 956      used in the sourcefile and they messed up our internal tables) we now do
 957      the ugly linear scan */
 958
 959   if (global_remote_debug)
 960     fprintf_unfiltered (gdb_stderr, "\ndefaulting to linear scan\n");
 961
 962   nprobes = 0;
 963   tmp = saved_bf_list;
 964   while (tmp != NULL)
 965     {
 966       nprobes++;
 967       if (tmp->symnum_fcn == the_function)
 968         {
 969           if (global_remote_debug)
 970             fprintf_unfiltered (gdb_stderr, "Found in %d probes\n", nprobes);
 971           current_head_bf_list = tmp->next;
 972           return (tmp->symnum_bf);
 973         }
 974       tmp = tmp->next;
 975     }
 976
 977   return (-1);
 978 }
 979
 980 static SAVED_FUNCTION_PTR saved_function_list = NULL;
 981 static SAVED_FUNCTION_PTR saved_function_list_end = NULL;
 982
 983 static void
 984 clear_function_list (void)
 985 {
 986   SAVED_FUNCTION_PTR tmp = saved_function_list;
 987   SAVED_FUNCTION_PTR next = NULL;
 988
 989   while (tmp != NULL)
 990     {
 991       next = tmp->next;
 992       xfree (tmp);
 993       tmp = next;
 994     }
 995
 996   saved_function_list = NULL;
 997 }
 998 #endif