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                         TARGET_SHORT_BIT / TARGET_CHAR_BIT,
 289                         0, "integer*2", objfile);
 290       break;
 291     case FT_SIGNED_SHORT:
 292       type = init_type (TYPE_CODE_INT,
 293                         TARGET_SHORT_BIT / TARGET_CHAR_BIT,
 294                         0, "short", objfile);   /* FIXME-fnf */
 295       break;
 296     case FT_UNSIGNED_SHORT:
 297       type = init_type (TYPE_CODE_BOOL,
 298                         TARGET_SHORT_BIT / TARGET_CHAR_BIT,
 299                         TYPE_FLAG_UNSIGNED, "logical*2", objfile);
 300       break;
 301     case FT_INTEGER:
 302       type = init_type (TYPE_CODE_INT,
 303                         TARGET_INT_BIT / TARGET_CHAR_BIT,
 304                         0, "integer*4", objfile);
 305       break;
 306     case FT_SIGNED_INTEGER:
 307       type = init_type (TYPE_CODE_INT,
 308                         TARGET_INT_BIT / TARGET_CHAR_BIT,
 309                         0, "integer", objfile);         /* FIXME -fnf */
 310       break;
 311     case FT_UNSIGNED_INTEGER:
 312       type = init_type (TYPE_CODE_BOOL,
 313                         TARGET_INT_BIT / 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                         TARGET_INT_BIT / TARGET_CHAR_BIT,
 319                         0, "fixed decimal", objfile);
 320       break;
 321     case FT_LONG:
 322       type = init_type (TYPE_CODE_INT,
 323                         TARGET_LONG_BIT / TARGET_CHAR_BIT,
 324                         0, "long", objfile);
 325       break;
 326     case FT_SIGNED_LONG:
 327       type = init_type (TYPE_CODE_INT,
 328                         TARGET_LONG_BIT / TARGET_CHAR_BIT,
 329                         0, "long", objfile);    /* FIXME -fnf */
 330       break;
 331     case FT_UNSIGNED_LONG:
 332       type = init_type (TYPE_CODE_INT,
 333                         TARGET_LONG_BIT / 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                         TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
 339                         0, "long long", objfile);
 340       break;
 341     case FT_SIGNED_LONG_LONG:
 342       type = init_type (TYPE_CODE_INT,
 343                         TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
 344                         0, "signed long long", objfile);
 345       break;
 346     case FT_UNSIGNED_LONG_LONG:
 347       type = init_type (TYPE_CODE_INT,
 348                         TARGET_LONG_LONG_BIT / TARGET_CHAR_BIT,
 349                         TYPE_FLAG_UNSIGNED, "unsigned long long", objfile);
 350       break;
 351     case FT_FLOAT:
 352       type = init_type (TYPE_CODE_FLT,
 353                         TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
 354                         0, "real", objfile);
 355       break;
 356     case FT_DBL_PREC_FLOAT:
 357       type = init_type (TYPE_CODE_FLT,
 358                         TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
 359                         0, "real*8", objfile);
 360       break;
 361     case FT_FLOAT_DECIMAL:
 362       type = init_type (TYPE_CODE_FLT,
 363                         TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
 364                         0, "floating decimal", objfile);
 365       break;
 366     case FT_EXT_PREC_FLOAT:
 367       type = init_type (TYPE_CODE_FLT,
 368                         TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
 369                         0, "real*16", objfile);
 370       break;
 371     case FT_COMPLEX:
 372       type = init_type (TYPE_CODE_COMPLEX,
 373                         2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
 374                         0, "complex*8", objfile);
 375       TYPE_TARGET_TYPE (type) = builtin_type_f_real;
 376       break;
 377     case FT_DBL_PREC_COMPLEX:
 378       type = init_type (TYPE_CODE_COMPLEX,
 379                         2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
 380                         0, "complex*16", objfile);
 381       TYPE_TARGET_TYPE (type) = builtin_type_f_real_s8;
 382       break;
 383     case FT_EXT_PREC_COMPLEX:
 384       type = init_type (TYPE_CODE_COMPLEX,
 385                         2 * TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
 386                         0, "complex*32", objfile);
 387       TYPE_TARGET_TYPE (type) = builtin_type_f_real_s16;
 388       break;
 389     default:
 390       /* FIXME:  For now, if we are asked to produce a type not in this
 391          language, create the equivalent of a C integer type with the
 392          name "<?type?>".  When all the dust settles from the type
 393          reconstruction work, this should probably become an error. */
 394       type = init_type (TYPE_CODE_INT,
 395                         TARGET_INT_BIT / TARGET_CHAR_BIT,
 396                         0, "<?type?>", objfile);
 397       warning (_("internal error: no F77 fundamental type %d"), typeid);
 398       break;
 399     }
 400   return (type);
 401 }
 402 \f
 403
 404 /* Table of operators and their precedences for printing expressions.  */
 405
 406 static const struct op_print f_op_print_tab[] =
 407 {
 408   {"+", BINOP_ADD, PREC_ADD, 0},
 409   {"+", UNOP_PLUS, PREC_PREFIX, 0},
 410   {"-", BINOP_SUB, PREC_ADD, 0},
 411   {"-", UNOP_NEG, PREC_PREFIX, 0},
 412   {"*", BINOP_MUL, PREC_MUL, 0},
 413   {"/", BINOP_DIV, PREC_MUL, 0},
 414   {"DIV", BINOP_INTDIV, PREC_MUL, 0},
 415   {"MOD", BINOP_REM, PREC_MUL, 0},
 416   {"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
 417   {".OR.", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
 418   {".AND.", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
 419   {".NOT.", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
 420   {".EQ.", BINOP_EQUAL, PREC_EQUAL, 0},
 421   {".NE.", BINOP_NOTEQUAL, PREC_EQUAL, 0},
 422   {".LE.", BINOP_LEQ, PREC_ORDER, 0},
 423   {".GE.", BINOP_GEQ, PREC_ORDER, 0},
 424   {".GT.", BINOP_GTR, PREC_ORDER, 0},
 425   {".LT.", BINOP_LESS, PREC_ORDER, 0},
 426   {"**", UNOP_IND, PREC_PREFIX, 0},
 427   {"@", BINOP_REPEAT, PREC_REPEAT, 0},
 428   {NULL, 0, 0, 0}
 429 };
 430 \f
 431 struct type **const (f_builtin_types[]) =
 432 {
 433   &builtin_type_f_character,
 434     &builtin_type_f_logical,
 435     &builtin_type_f_logical_s1,
 436     &builtin_type_f_logical_s2,
 437     &builtin_type_f_integer,
 438     &builtin_type_f_integer_s2,
 439     &builtin_type_f_real,
 440     &builtin_type_f_real_s8,
 441     &builtin_type_f_real_s16,
 442     &builtin_type_f_complex_s8,
 443     &builtin_type_f_complex_s16,
 444 #if 0
 445     &builtin_type_f_complex_s32,
 446 #endif
 447     &builtin_type_f_void,
 448     0
 449 };
 450
 451 /* This is declared in c-lang.h but it is silly to import that file for what
 452    is already just a hack. */
 453 extern int c_value_print (struct value *, struct ui_file *, int,
 454                           enum val_prettyprint);
 455
 456 const struct language_defn f_language_defn =
 457 {
 458   "fortran",
 459   language_fortran,
 460   f_builtin_types,
 461   range_check_on,
 462   type_check_on,
 463   case_sensitive_off,
 464   array_column_major,
 465   &exp_descriptor_standard,
 466   f_parse,                      /* parser */
 467   f_error,                      /* parser error function */
 468   null_post_parser,
 469   f_printchar,                  /* Print character constant */
 470   f_printstr,                   /* function to print string constant */
 471   f_emit_char,                  /* Function to print a single character */
 472   f_create_fundamental_type,    /* Create fundamental type in this language */
 473   f_print_type,                 /* Print a type using appropriate syntax */
 474   f_val_print,                  /* Print a value using appropriate syntax */
 475   c_value_print,                /* FIXME */
 476   NULL,                         /* Language specific skip_trampoline */
 477   value_of_this,                /* value_of_this */
 478   basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
 479   basic_lookup_transparent_type,/* lookup_transparent_type */
 480   NULL,                         /* Language specific symbol demangler */
 481   NULL,                         /* Language specific class_name_from_physname */
 482   f_op_print_tab,               /* expression operators for printing */
 483   0,                            /* arrays are first-class (not c-style) */
 484   1,                            /* String lower bound */
 485   &builtin_type_f_character,    /* Type of string elements */
 486   default_word_break_characters,
 487   NULL, /* FIXME: la_language_arch_info.  */
 488   default_print_array_index,
 489   LANG_MAGIC
 490 };
 491
 492 static void
 493 build_fortran_types (void)
 494 {
 495   builtin_type_f_void =
 496     init_type (TYPE_CODE_VOID, 1,
 497                0,
 498                "VOID", (struct objfile *) NULL);
 499
 500   builtin_type_f_character =
 501     init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 502                0,
 503                "character", (struct objfile *) NULL);
 504
 505   builtin_type_f_logical_s1 =
 506     init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 507                TYPE_FLAG_UNSIGNED,
 508                "logical*1", (struct objfile *) NULL);
 509
 510   builtin_type_f_integer_s2 =
 511     init_type (TYPE_CODE_INT, TARGET_SHORT_BIT / TARGET_CHAR_BIT,
 512                0,
 513                "integer*2", (struct objfile *) NULL);
 514
 515   builtin_type_f_logical_s2 =
 516     init_type (TYPE_CODE_BOOL, TARGET_SHORT_BIT / TARGET_CHAR_BIT,
 517                TYPE_FLAG_UNSIGNED,
 518                "logical*2", (struct objfile *) NULL);
 519
 520   builtin_type_f_integer =
 521     init_type (TYPE_CODE_INT, TARGET_INT_BIT / TARGET_CHAR_BIT,
 522                0,
 523                "integer", (struct objfile *) NULL);
 524
 525   builtin_type_f_logical =
 526     init_type (TYPE_CODE_BOOL, TARGET_INT_BIT / TARGET_CHAR_BIT,
 527                TYPE_FLAG_UNSIGNED,
 528                "logical*4", (struct objfile *) NULL);
 529
 530   builtin_type_f_real =
 531     init_type (TYPE_CODE_FLT, TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
 532                0,
 533                "real", (struct objfile *) NULL);
 534
 535   builtin_type_f_real_s8 =
 536     init_type (TYPE_CODE_FLT, TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
 537                0,
 538                "real*8", (struct objfile *) NULL);
 539
 540   builtin_type_f_real_s16 =
 541     init_type (TYPE_CODE_FLT, TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
 542                0,
 543                "real*16", (struct objfile *) NULL);
 544
 545   builtin_type_f_complex_s8 =
 546     init_type (TYPE_CODE_COMPLEX, 2 * TARGET_FLOAT_BIT / TARGET_CHAR_BIT,
 547                0,
 548                "complex*8", (struct objfile *) NULL);
 549   TYPE_TARGET_TYPE (builtin_type_f_complex_s8) = builtin_type_f_real;
 550
 551   builtin_type_f_complex_s16 =
 552     init_type (TYPE_CODE_COMPLEX, 2 * TARGET_DOUBLE_BIT / TARGET_CHAR_BIT,
 553                0,
 554                "complex*16", (struct objfile *) NULL);
 555   TYPE_TARGET_TYPE (builtin_type_f_complex_s16) = builtin_type_f_real_s8;
 556
 557   /* We have a new size == 4 double floats for the
 558      complex*32 data type */
 559
 560   builtin_type_f_complex_s32 =
 561     init_type (TYPE_CODE_COMPLEX, 2 * TARGET_LONG_DOUBLE_BIT / TARGET_CHAR_BIT,
 562                0,
 563                "complex*32", (struct objfile *) NULL);
 564   TYPE_TARGET_TYPE (builtin_type_f_complex_s32) = builtin_type_f_real_s16;
 565 }
 566
 567 void
 568 _initialize_f_language (void)
 569 {
 570   build_fortran_types ();
 571
 572   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_character);
 573   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_logical);
 574   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_logical_s1);
 575   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_logical_s2);
 576   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_integer);
 577   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_integer_s2);
 578   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_real);
 579   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_real_s8);
 580   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_real_s16);
 581   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_complex_s8);
 582   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_complex_s16);
 583   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_complex_s32);
 584   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_void);
 585   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_string);
 586   deprecated_register_gdbarch_swap (NULL, 0, build_fortran_types);
 587
 588   builtin_type_string =
 589     init_type (TYPE_CODE_STRING, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 590                0,
 591                "character string", (struct objfile *) NULL);
 592
 593   add_language (&f_language_defn);
 594 }
 595
 596 #if 0
 597 static SAVED_BF_PTR
 598 allocate_saved_bf_node (void)
 599 {
 600   SAVED_BF_PTR new;
 601
 602   new = (SAVED_BF_PTR) xmalloc (sizeof (SAVED_BF));
 603   return (new);
 604 }
 605
 606 static SAVED_FUNCTION *
 607 allocate_saved_function_node (void)
 608 {
 609   SAVED_FUNCTION *new;
 610
 611   new = (SAVED_FUNCTION *) xmalloc (sizeof (SAVED_FUNCTION));
 612   return (new);
 613 }
 614
 615 static SAVED_F77_COMMON_PTR
 616 allocate_saved_f77_common_node (void)
 617 {
 618   SAVED_F77_COMMON_PTR new;
 619
 620   new = (SAVED_F77_COMMON_PTR) xmalloc (sizeof (SAVED_F77_COMMON));
 621   return (new);
 622 }
 623
 624 static COMMON_ENTRY_PTR
 625 allocate_common_entry_node (void)
 626 {
 627   COMMON_ENTRY_PTR new;
 628
 629   new = (COMMON_ENTRY_PTR) xmalloc (sizeof (COMMON_ENTRY));
 630   return (new);
 631 }
 632 #endif
 633
 634 SAVED_F77_COMMON_PTR head_common_list = NULL;   /* Ptr to 1st saved COMMON  */
 635 SAVED_F77_COMMON_PTR tail_common_list = NULL;   /* Ptr to last saved COMMON  */
 636 SAVED_F77_COMMON_PTR current_common = NULL;     /* Ptr to current COMMON */
 637
 638 #if 0
 639 static SAVED_BF_PTR saved_bf_list = NULL;       /* Ptr to (.bf,function)
 640                                                    list */
 641 static SAVED_BF_PTR saved_bf_list_end = NULL;   /* Ptr to above list's end */
 642 static SAVED_BF_PTR current_head_bf_list = NULL;        /* Current head of above list
 643                                                          */
 644
 645 static SAVED_BF_PTR tmp_bf_ptr; /* Generic temporary for use
 646                                    in macros */
 647
 648 /* The following function simply enters a given common block onto
 649    the global common block chain */
 650
 651 static void
 652 add_common_block (char *name, CORE_ADDR offset, int secnum, char *func_stab)
 653 {
 654   SAVED_F77_COMMON_PTR tmp;
 655   char *c, *local_copy_func_stab;
 656
 657   /* If the COMMON block we are trying to add has a blank
 658      name (i.e. "#BLNK_COM") then we set it to __BLANK
 659      because the darn "#" character makes GDB's input
 660      parser have fits. */
 661
 662
 663   if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0
 664       || strcmp (name, BLANK_COMMON_NAME_MF77) == 0)
 665     {
 666
 667       xfree (name);
 668       name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
 669       strcpy (name, BLANK_COMMON_NAME_LOCAL);
 670     }
 671
 672   tmp = allocate_saved_f77_common_node ();
 673
 674   local_copy_func_stab = xmalloc (strlen (func_stab) + 1);
 675   strcpy (local_copy_func_stab, func_stab);
 676
 677   tmp->name = xmalloc (strlen (name) + 1);
 678
 679   /* local_copy_func_stab is a stabstring, let us first extract the
 680      function name from the stab by NULLing out the ':' character. */
 681
 682
 683   c = NULL;
 684   c = strchr (local_copy_func_stab, ':');
 685
 686   if (c)
 687     *c = '\0';
 688   else
 689     error (_("Malformed function STAB found in add_common_block()"));
 690
 691
 692   tmp->owning_function = xmalloc (strlen (local_copy_func_stab) + 1);
 693
 694   strcpy (tmp->owning_function, local_copy_func_stab);
 695
 696   strcpy (tmp->name, name);
 697   tmp->offset = offset;
 698   tmp->next = NULL;
 699   tmp->entries = NULL;
 700   tmp->secnum = secnum;
 701
 702   current_common = tmp;
 703
 704   if (head_common_list == NULL)
 705     {
 706       head_common_list = tail_common_list = tmp;
 707     }
 708   else
 709     {
 710       tail_common_list->next = tmp;
 711       tail_common_list = tmp;
 712     }
 713 }
 714 #endif
 715
 716 /* The following function simply enters a given common entry onto
 717    the "current_common" block that has been saved away. */
 718
 719 #if 0
 720 static void
 721 add_common_entry (struct symbol *entry_sym_ptr)
 722 {
 723   COMMON_ENTRY_PTR tmp;
 724
 725
 726
 727   /* The order of this list is important, since
 728      we expect the entries to appear in decl.
 729      order when we later issue "info common" calls */
 730
 731   tmp = allocate_common_entry_node ();
 732
 733   tmp->next = NULL;
 734   tmp->symbol = entry_sym_ptr;
 735
 736   if (current_common == NULL)
 737     error (_("Attempt to add COMMON entry with no block open!"));
 738   else
 739     {
 740       if (current_common->entries == NULL)
 741         {
 742           current_common->entries = tmp;
 743           current_common->end_of_entries = tmp;
 744         }
 745       else
 746         {
 747           current_common->end_of_entries->next = tmp;
 748           current_common->end_of_entries = tmp;
 749         }
 750     }
 751 }
 752 #endif
 753
 754 /* This routine finds the first encountred COMMON block named "name" */
 755
 756 #if 0
 757 static SAVED_F77_COMMON_PTR
 758 find_first_common_named (char *name)
 759 {
 760
 761   SAVED_F77_COMMON_PTR tmp;
 762
 763   tmp = head_common_list;
 764
 765   while (tmp != NULL)
 766     {
 767       if (strcmp (tmp->name, name) == 0)
 768         return (tmp);
 769       else
 770         tmp = tmp->next;
 771     }
 772   return (NULL);
 773 }
 774 #endif
 775
 776 /* This routine finds the first encountred COMMON block named "name"
 777    that belongs to function funcname */
 778
 779 SAVED_F77_COMMON_PTR
 780 find_common_for_function (char *name, char *funcname)
 781 {
 782
 783   SAVED_F77_COMMON_PTR tmp;
 784
 785   tmp = head_common_list;
 786
 787   while (tmp != NULL)
 788     {
 789       if (DEPRECATED_STREQ (tmp->name, name)
 790           && DEPRECATED_STREQ (tmp->owning_function, funcname))
 791         return (tmp);
 792       else
 793         tmp = tmp->next;
 794     }
 795   return (NULL);
 796 }
 797
 798
 799 #if 0
 800
 801 /* The following function is called to patch up the offsets
 802    for the statics contained in the COMMON block named
 803    "name."  */
 804
 805 static void
 806 patch_common_entries (SAVED_F77_COMMON_PTR blk, CORE_ADDR offset, int secnum)
 807 {
 808   COMMON_ENTRY_PTR entry;
 809
 810   blk->offset = offset;         /* Keep this around for future use. */
 811
 812   entry = blk->entries;
 813
 814   while (entry != NULL)
 815     {
 816       SYMBOL_VALUE (entry->symbol) += offset;
 817       SYMBOL_SECTION (entry->symbol) = secnum;
 818
 819       entry = entry->next;
 820     }
 821   blk->secnum = secnum;
 822 }
 823
 824 /* Patch all commons named "name" that need patching.Since COMMON
 825    blocks occur with relative infrequency, we simply do a linear scan on
 826    the name.  Eventually, the best way to do this will be a
 827    hashed-lookup.  Secnum is the section number for the .bss section
 828    (which is where common data lives). */
 829
 830 static void
 831 patch_all_commons_by_name (char *name, CORE_ADDR offset, int secnum)
 832 {
 833
 834   SAVED_F77_COMMON_PTR tmp;
 835
 836   /* For blank common blocks, change the canonical reprsentation
 837      of a blank name */
 838
 839   if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0
 840       || strcmp (name, BLANK_COMMON_NAME_MF77) == 0)
 841     {
 842       xfree (name);
 843       name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
 844       strcpy (name, BLANK_COMMON_NAME_LOCAL);
 845     }
 846
 847   tmp = head_common_list;
 848
 849   while (tmp != NULL)
 850     {
 851       if (COMMON_NEEDS_PATCHING (tmp))
 852         if (strcmp (tmp->name, name) == 0)
 853           patch_common_entries (tmp, offset, secnum);
 854
 855       tmp = tmp->next;
 856     }
 857 }
 858 #endif
 859
 860 /* This macro adds the symbol-number for the start of the function
 861    (the symbol number of the .bf) referenced by symnum_fcn to a
 862    list.  This list, in reality should be a FIFO queue but since
 863    #line pragmas sometimes cause line ranges to get messed up
 864    we simply create a linear list.  This list can then be searched
 865    first by a queueing algorithm and upon failure fall back to
 866    a linear scan. */
 867
 868 #if 0
 869 #define ADD_BF_SYMNUM(bf_sym,fcn_sym) \
 870   \
 871   if (saved_bf_list == NULL) \
 872 { \
 873     tmp_bf_ptr = allocate_saved_bf_node(); \
 874       \
 875         tmp_bf_ptr->symnum_bf = (bf_sym); \
 876           tmp_bf_ptr->symnum_fcn = (fcn_sym);  \
 877             tmp_bf_ptr->next = NULL; \
 878               \
 879                 current_head_bf_list = saved_bf_list = tmp_bf_ptr; \
 880                   saved_bf_list_end = tmp_bf_ptr; \
 881                   } \
 882 else \
 883 {  \
 884      tmp_bf_ptr = allocate_saved_bf_node(); \
 885        \
 886          tmp_bf_ptr->symnum_bf = (bf_sym);  \
 887            tmp_bf_ptr->symnum_fcn = (fcn_sym);  \
 888              tmp_bf_ptr->next = NULL;  \
 889                \
 890                  saved_bf_list_end->next = tmp_bf_ptr;  \
 891                    saved_bf_list_end = tmp_bf_ptr; \
 892                    }
 893 #endif
 894
 895 /* This function frees the entire (.bf,function) list */
 896
 897 #if 0
 898 static void
 899 clear_bf_list (void)
 900 {
 901
 902   SAVED_BF_PTR tmp = saved_bf_list;
 903   SAVED_BF_PTR next = NULL;
 904
 905   while (tmp != NULL)
 906     {
 907       next = tmp->next;
 908       xfree (tmp);
 909       tmp = next;
 910     }
 911   saved_bf_list = NULL;
 912 }
 913 #endif
 914
 915 int global_remote_debug;
 916
 917 #if 0
 918
 919 static long
 920 get_bf_for_fcn (long the_function)
 921 {
 922   SAVED_BF_PTR tmp;
 923   int nprobes = 0;
 924
 925   /* First use a simple queuing algorithm (i.e. look and see if the
 926      item at the head of the queue is the one you want)  */
 927
 928   if (saved_bf_list == NULL)
 929     internal_error (__FILE__, __LINE__,
 930                     _("cannot get .bf node off empty list"));
 931
 932   if (current_head_bf_list != NULL)
 933     if (current_head_bf_list->symnum_fcn == the_function)
 934       {
 935         if (global_remote_debug)
 936           fprintf_unfiltered (gdb_stderr, "*");
 937
 938         tmp = current_head_bf_list;
 939         current_head_bf_list = current_head_bf_list->next;
 940         return (tmp->symnum_bf);
 941       }
 942
 943   /* If the above did not work (probably because #line directives were
 944      used in the sourcefile and they messed up our internal tables) we now do
 945      the ugly linear scan */
 946
 947   if (global_remote_debug)
 948     fprintf_unfiltered (gdb_stderr, "\ndefaulting to linear scan\n");
 949
 950   nprobes = 0;
 951   tmp = saved_bf_list;
 952   while (tmp != NULL)
 953     {
 954       nprobes++;
 955       if (tmp->symnum_fcn == the_function)
 956         {
 957           if (global_remote_debug)
 958             fprintf_unfiltered (gdb_stderr, "Found in %d probes\n", nprobes);
 959           current_head_bf_list = tmp->next;
 960           return (tmp->symnum_bf);
 961         }
 962       tmp = tmp->next;
 963     }
 964
 965   return (-1);
 966 }
 967
 968 static SAVED_FUNCTION_PTR saved_function_list = NULL;
 969 static SAVED_FUNCTION_PTR saved_function_list_end = NULL;
 970
 971 static void
 972 clear_function_list (void)
 973 {
 974   SAVED_FUNCTION_PTR tmp = saved_function_list;
 975   SAVED_FUNCTION_PTR next = NULL;
 976
 977   while (tmp != NULL)
 978     {
 979       next = tmp->next;
 980       xfree (tmp);
 981       tmp = next;
 982     }
 983
 984   saved_function_list = NULL;
 985 }
 986 #endif