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
  38 /* Following is dubious stuff that had been in the xcoff reader. */
  39
  40 struct saved_fcn
  41   {
  42     long line_offset;           /* Line offset for function */
  43     struct saved_fcn *next;
  44   };
  45
  46
  47 struct saved_bf_symnum
  48   {
  49     long symnum_fcn;            /* Symnum of function (i.e. .function directive) */
  50     long symnum_bf;             /* Symnum of .bf for this function */
  51     struct saved_bf_symnum *next;
  52   };
  53
  54 typedef struct saved_fcn SAVED_FUNCTION, *SAVED_FUNCTION_PTR;
  55 typedef struct saved_bf_symnum SAVED_BF, *SAVED_BF_PTR;
  56
  57 /* Local functions */
  58
  59 extern void _initialize_f_language (void);
  60 #if 0
  61 static void clear_function_list (void);
  62 static long get_bf_for_fcn (long);
  63 static void clear_bf_list (void);
  64 static void patch_all_commons_by_name (char *, CORE_ADDR, int);
  65 static SAVED_F77_COMMON_PTR find_first_common_named (char *);
  66 static void add_common_entry (struct symbol *);
  67 static void add_common_block (char *, CORE_ADDR, int, char *);
  68 static SAVED_FUNCTION *allocate_saved_function_node (void);
  69 static SAVED_BF_PTR allocate_saved_bf_node (void);
  70 static COMMON_ENTRY_PTR allocate_common_entry_node (void);
  71 static SAVED_F77_COMMON_PTR allocate_saved_f77_common_node (void);
  72 static void patch_common_entries (SAVED_F77_COMMON_PTR, CORE_ADDR, int);
  73 #endif
  74
  75 static struct type *f_create_fundamental_type (struct objfile *, int);
  76 static void f_printchar (int c, struct ui_file * stream);
  77 static void f_emit_char (int c, struct ui_file * stream, int quoter);
  78
  79 /* Print the character C on STREAM as part of the contents of a literal
  80    string whose delimiter is QUOTER.  Note that that format for printing
  81    characters and strings is language specific.
  82    FIXME:  This is a copy of the same function from c-exp.y.  It should
  83    be replaced with a true F77 version.  */
  84
  85 static void
  86 f_emit_char (int c, struct ui_file *stream, int quoter)
  87 {
  88   c &= 0xFF;                    /* Avoid sign bit follies */
  89
  90   if (PRINT_LITERAL_FORM (c))
  91     {
  92       if (c == '\\' || c == quoter)
  93         fputs_filtered ("\\", stream);
  94       fprintf_filtered (stream, "%c", c);
  95     }
  96   else
  97     {
  98       switch (c)
  99         {
 100         case '\n':
 101           fputs_filtered ("\\n", stream);
 102           break;
 103         case '\b':
 104           fputs_filtered ("\\b", stream);
 105           break;
 106         case '\t':
 107           fputs_filtered ("\\t", stream);
 108           break;
 109         case '\f':
 110           fputs_filtered ("\\f", stream);
 111           break;
 112         case '\r':
 113           fputs_filtered ("\\r", stream);
 114           break;
 115         case '\033':
 116           fputs_filtered ("\\e", stream);
 117           break;
 118         case '\007':
 119           fputs_filtered ("\\a", stream);
 120           break;
 121         default:
 122           fprintf_filtered (stream, "\\%.3o", (unsigned int) c);
 123           break;
 124         }
 125     }
 126 }
 127
 128 /* FIXME:  This is a copy of the same function from c-exp.y.  It should
 129    be replaced with a true F77version. */
 130
 131 static void
 132 f_printchar (int c, struct ui_file *stream)
 133 {
 134   fputs_filtered ("'", stream);
 135   LA_EMIT_CHAR (c, stream, '\'');
 136   fputs_filtered ("'", stream);
 137 }
 138
 139 /* Print the character string STRING, printing at most LENGTH characters.
 140    Printing stops early if the number hits print_max; repeat counts
 141    are printed as appropriate.  Print ellipses at the end if we
 142    had to stop before printing LENGTH characters, or if FORCE_ELLIPSES.
 143    FIXME:  This is a copy of the same function from c-exp.y.  It should
 144    be replaced with a true F77 version. */
 145
 146 static void
 147 f_printstr (struct ui_file *stream, const gdb_byte *string,
 148             unsigned int length, int width, int force_ellipses)
 149 {
 150   unsigned int i;
 151   unsigned int things_printed = 0;
 152   int in_quotes = 0;
 153   int need_comma = 0;
 154
 155   if (length == 0)
 156     {
 157       fputs_filtered ("''", gdb_stdout);
 158       return;
 159     }
 160
 161   for (i = 0; i < length && things_printed < print_max; ++i)
 162     {
 163       /* Position of the character we are examining
 164          to see whether it is repeated.  */
 165       unsigned int rep1;
 166       /* Number of repetitions we have detected so far.  */
 167       unsigned int reps;
 168
 169       QUIT;
 170
 171       if (need_comma)
 172         {
 173           fputs_filtered (", ", stream);
 174           need_comma = 0;
 175         }
 176
 177       rep1 = i + 1;
 178       reps = 1;
 179       while (rep1 < length && string[rep1] == string[i])
 180         {
 181           ++rep1;
 182           ++reps;
 183         }
 184
 185       if (reps > repeat_count_threshold)
 186         {
 187           if (in_quotes)
 188             {
 189               if (inspect_it)
 190                 fputs_filtered ("\\', ", stream);
 191               else
 192                 fputs_filtered ("', ", stream);
 193               in_quotes = 0;
 194             }
 195           f_printchar (string[i], stream);
 196           fprintf_filtered (stream, " <repeats %u times>", reps);
 197           i = rep1 - 1;
 198           things_printed += repeat_count_threshold;
 199           need_comma = 1;
 200         }
 201       else
 202         {
 203           if (!in_quotes)
 204             {
 205               if (inspect_it)
 206                 fputs_filtered ("\\'", stream);
 207               else
 208                 fputs_filtered ("'", stream);
 209               in_quotes = 1;
 210             }
 211           LA_EMIT_CHAR (string[i], stream, '"');
 212           ++things_printed;
 213         }
 214     }
 215
 216   /* Terminate the quotes if necessary.  */
 217   if (in_quotes)
 218     {
 219       if (inspect_it)
 220         fputs_filtered ("\\'", stream);
 221       else
 222         fputs_filtered ("'", stream);
 223     }
 224
 225   if (force_ellipses || i < length)
 226     fputs_filtered ("...", stream);
 227 }
 228
 229 /* FIXME:  This is a copy of c_create_fundamental_type(), before
 230    all the non-C types were stripped from it.  Needs to be fixed
 231    by an experienced F77 programmer. */
 232
 233 static struct type *
 234 f_create_fundamental_type (struct objfile *objfile, int typeid)
 235 {
 236   struct type *type = NULL;
 237
 238   switch (typeid)
 239     {
 240     case FT_VOID:
 241       type = init_type (TYPE_CODE_VOID,
 242                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 243                         0, "VOID", objfile);
 244       break;
 245     case FT_BOOLEAN:
 246       type = init_type (TYPE_CODE_BOOL,
 247                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 248                         TYPE_FLAG_UNSIGNED, "boolean", objfile);
 249       break;
 250     case FT_STRING:
 251       type = init_type (TYPE_CODE_STRING,
 252                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 253                         0, "string", objfile);
 254       break;
 255     case FT_CHAR:
 256       type = init_type (TYPE_CODE_INT,
 257                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 258                         0, "character", objfile);
 259       break;
 260     case FT_SIGNED_CHAR:
 261       type = init_type (TYPE_CODE_INT,
 262                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 263                         0, "integer*1", objfile);
 264       break;
 265     case FT_UNSIGNED_CHAR:
 266       type = init_type (TYPE_CODE_BOOL,
 267                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 268                         TYPE_FLAG_UNSIGNED, "logical*1", objfile);
 269       break;
 270     case FT_SHORT:
 271       type = init_type (TYPE_CODE_INT,
 272                         gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
 273                         0, "integer*2", objfile);
 274       break;
 275     case FT_SIGNED_SHORT:
 276       type = init_type (TYPE_CODE_INT,
 277                         gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
 278                         0, "short", objfile);   /* FIXME-fnf */
 279       break;
 280     case FT_UNSIGNED_SHORT:
 281       type = init_type (TYPE_CODE_BOOL,
 282                         gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
 283                         TYPE_FLAG_UNSIGNED, "logical*2", objfile);
 284       break;
 285     case FT_INTEGER:
 286       type = init_type (TYPE_CODE_INT,
 287                         gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 288                         0, "integer*4", objfile);
 289       break;
 290     case FT_SIGNED_INTEGER:
 291       type = init_type (TYPE_CODE_INT,
 292                         gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 293                         0, "integer", objfile);         /* FIXME -fnf */
 294       break;
 295     case FT_UNSIGNED_INTEGER:
 296       type = init_type (TYPE_CODE_BOOL,
 297                         gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 298                         TYPE_FLAG_UNSIGNED, "logical*4", objfile);
 299       break;
 300     case FT_FIXED_DECIMAL:
 301       type = init_type (TYPE_CODE_INT,
 302                         gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 303                         0, "fixed decimal", objfile);
 304       break;
 305     case FT_LONG:
 306       type = init_type (TYPE_CODE_INT,
 307                         gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
 308                         0, "long", objfile);
 309       break;
 310     case FT_SIGNED_LONG:
 311       type = init_type (TYPE_CODE_INT,
 312                         gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
 313                         0, "long", objfile);    /* FIXME -fnf */
 314       break;
 315     case FT_UNSIGNED_LONG:
 316       type = init_type (TYPE_CODE_INT,
 317                         gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
 318                         TYPE_FLAG_UNSIGNED, "unsigned long", objfile);
 319       break;
 320     case FT_LONG_LONG:
 321       type = init_type (TYPE_CODE_INT,
 322                         gdbarch_long_long_bit (current_gdbarch)
 323                          / TARGET_CHAR_BIT,
 324                         0, "long long", objfile);
 325       break;
 326     case FT_SIGNED_LONG_LONG:
 327       type = init_type (TYPE_CODE_INT,
 328                         gdbarch_long_long_bit (current_gdbarch)
 329                          / TARGET_CHAR_BIT,
 330                         0, "signed long long", objfile);
 331       break;
 332     case FT_UNSIGNED_LONG_LONG:
 333       type = init_type (TYPE_CODE_INT,
 334                         gdbarch_long_long_bit (current_gdbarch)
 335                          / TARGET_CHAR_BIT,
 336                         TYPE_FLAG_UNSIGNED, "unsigned long long", objfile);
 337       break;
 338     case FT_FLOAT:
 339       type = init_type (TYPE_CODE_FLT,
 340                         gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
 341                         0, "real", objfile);
 342       break;
 343     case FT_DBL_PREC_FLOAT:
 344       type = init_type (TYPE_CODE_FLT,
 345                         gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 346                         0, "real*8", objfile);
 347       break;
 348     case FT_FLOAT_DECIMAL:
 349       type = init_type (TYPE_CODE_FLT,
 350                         gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 351                         0, "floating decimal", objfile);
 352       break;
 353     case FT_EXT_PREC_FLOAT:
 354       type = init_type (TYPE_CODE_FLT,
 355                         gdbarch_long_double_bit (current_gdbarch)
 356                           / TARGET_CHAR_BIT,
 357                         0, "real*16", objfile);
 358       break;
 359     case FT_COMPLEX:
 360       type = init_type (TYPE_CODE_COMPLEX,
 361                         2 * gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
 362                         0, "complex*8", objfile);
 363       TYPE_TARGET_TYPE (type) = builtin_type_f_real;
 364       break;
 365     case FT_DBL_PREC_COMPLEX:
 366       type = init_type (TYPE_CODE_COMPLEX,
 367                         2 * gdbarch_double_bit (current_gdbarch)
 368                           / TARGET_CHAR_BIT,
 369                         0, "complex*16", objfile);
 370       TYPE_TARGET_TYPE (type) = builtin_type_f_real_s8;
 371       break;
 372     case FT_EXT_PREC_COMPLEX:
 373       type = init_type (TYPE_CODE_COMPLEX,
 374                         2 * gdbarch_long_double_bit (current_gdbarch)
 375                           / TARGET_CHAR_BIT,
 376                         0, "complex*32", objfile);
 377       TYPE_TARGET_TYPE (type) = builtin_type_f_real_s16;
 378       break;
 379     default:
 380       /* FIXME:  For now, if we are asked to produce a type not in this
 381          language, create the equivalent of a C integer type with the
 382          name "<?type?>".  When all the dust settles from the type
 383          reconstruction work, this should probably become an error. */
 384       type = init_type (TYPE_CODE_INT,
 385                         gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 386                         0, "<?type?>", objfile);
 387       warning (_("internal error: no F77 fundamental type %d"), typeid);
 388       break;
 389     }
 390   return (type);
 391 }
 392 \f
 393
 394 /* Table of operators and their precedences for printing expressions.  */
 395
 396 static const struct op_print f_op_print_tab[] =
 397 {
 398   {"+", BINOP_ADD, PREC_ADD, 0},
 399   {"+", UNOP_PLUS, PREC_PREFIX, 0},
 400   {"-", BINOP_SUB, PREC_ADD, 0},
 401   {"-", UNOP_NEG, PREC_PREFIX, 0},
 402   {"*", BINOP_MUL, PREC_MUL, 0},
 403   {"/", BINOP_DIV, PREC_MUL, 0},
 404   {"DIV", BINOP_INTDIV, PREC_MUL, 0},
 405   {"MOD", BINOP_REM, PREC_MUL, 0},
 406   {"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
 407   {".OR.", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
 408   {".AND.", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
 409   {".NOT.", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
 410   {".EQ.", BINOP_EQUAL, PREC_EQUAL, 0},
 411   {".NE.", BINOP_NOTEQUAL, PREC_EQUAL, 0},
 412   {".LE.", BINOP_LEQ, PREC_ORDER, 0},
 413   {".GE.", BINOP_GEQ, PREC_ORDER, 0},
 414   {".GT.", BINOP_GTR, PREC_ORDER, 0},
 415   {".LT.", BINOP_LESS, PREC_ORDER, 0},
 416   {"**", UNOP_IND, PREC_PREFIX, 0},
 417   {"@", BINOP_REPEAT, PREC_REPEAT, 0},
 418   {NULL, 0, 0, 0}
 419 };
 420 \f
 421 enum f_primitive_types {
 422   f_primitive_type_character,
 423   f_primitive_type_logical,
 424   f_primitive_type_logical_s1,
 425   f_primitive_type_logical_s2,
 426   f_primitive_type_integer,
 427   f_primitive_type_integer_s2,
 428   f_primitive_type_real,
 429   f_primitive_type_real_s8,
 430   f_primitive_type_real_s16,
 431   f_primitive_type_complex_s8,
 432   f_primitive_type_complex_s16,
 433   f_primitive_type_void,
 434   nr_f_primitive_types
 435 };
 436
 437 static void
 438 f_language_arch_info (struct gdbarch *gdbarch,
 439                       struct language_arch_info *lai)
 440 {
 441   const struct builtin_f_type *builtin = builtin_f_type (gdbarch);
 442
 443   lai->string_char_type = builtin->builtin_character;
 444   lai->primitive_type_vector
 445     = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_f_primitive_types + 1,
 446                               struct type *);
 447
 448   lai->primitive_type_vector [f_primitive_type_character]
 449     = builtin->builtin_character;
 450   lai->primitive_type_vector [f_primitive_type_logical]
 451     = builtin->builtin_logical;
 452   lai->primitive_type_vector [f_primitive_type_logical_s1]
 453     = builtin->builtin_logical_s1;
 454   lai->primitive_type_vector [f_primitive_type_logical_s2]
 455     = builtin->builtin_logical_s2;
 456   lai->primitive_type_vector [f_primitive_type_real]
 457     = builtin->builtin_real;
 458   lai->primitive_type_vector [f_primitive_type_real_s8]
 459     = builtin->builtin_real_s8;
 460   lai->primitive_type_vector [f_primitive_type_real_s16]
 461     = builtin->builtin_real_s16;
 462   lai->primitive_type_vector [f_primitive_type_complex_s8]
 463     = builtin->builtin_complex_s8;
 464   lai->primitive_type_vector [f_primitive_type_complex_s16]
 465     = builtin->builtin_complex_s16;
 466   lai->primitive_type_vector [f_primitive_type_void]
 467     = builtin->builtin_void;
 468 }
 469
 470 /* This is declared in c-lang.h but it is silly to import that file for what
 471    is already just a hack. */
 472 extern int c_value_print (struct value *, struct ui_file *, int,
 473                           enum val_prettyprint);
 474
 475 const struct language_defn f_language_defn =
 476 {
 477   "fortran",
 478   language_fortran,
 479   NULL,
 480   range_check_on,
 481   type_check_on,
 482   case_sensitive_off,
 483   array_column_major,
 484   &exp_descriptor_standard,
 485   f_parse,                      /* parser */
 486   f_error,                      /* parser error function */
 487   null_post_parser,
 488   f_printchar,                  /* Print character constant */
 489   f_printstr,                   /* function to print string constant */
 490   f_emit_char,                  /* Function to print a single character */
 491   f_create_fundamental_type,    /* Create fundamental type in this language */
 492   f_print_type,                 /* Print a type using appropriate syntax */
 493   f_val_print,                  /* Print a value using appropriate syntax */
 494   c_value_print,                /* FIXME */
 495   NULL,                         /* Language specific skip_trampoline */
 496   value_of_this,                /* value_of_this */
 497   basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
 498   basic_lookup_transparent_type,/* lookup_transparent_type */
 499   NULL,                         /* Language specific symbol demangler */
 500   NULL,                         /* Language specific class_name_from_physname */
 501   f_op_print_tab,               /* expression operators for printing */
 502   0,                            /* arrays are first-class (not c-style) */
 503   1,                            /* String lower bound */
 504   NULL,
 505   default_word_break_characters,
 506   f_language_arch_info,
 507   default_print_array_index,
 508   LANG_MAGIC
 509 };
 510
 511 static void *
 512 build_fortran_types (struct gdbarch *gdbarch)
 513 {
 514   struct builtin_f_type *builtin_f_type
 515     = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_f_type);
 516
 517   builtin_f_type->builtin_void =
 518     init_type (TYPE_CODE_VOID, 1,
 519                0,
 520                "VOID", (struct objfile *) NULL);
 521
 522   builtin_f_type->builtin_character =
 523     init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 524                0,
 525                "character", (struct objfile *) NULL);
 526
 527   builtin_f_type->builtin_logical_s1 =
 528     init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 529                TYPE_FLAG_UNSIGNED,
 530                "logical*1", (struct objfile *) NULL);
 531
 532   builtin_f_type->builtin_integer_s2 =
 533     init_type (TYPE_CODE_INT,
 534                gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
 535                0, "integer*2", (struct objfile *) NULL);
 536
 537   builtin_f_type->builtin_logical_s2 =
 538     init_type (TYPE_CODE_BOOL,
 539                gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
 540                TYPE_FLAG_UNSIGNED, "logical*2", (struct objfile *) NULL);
 541
 542   builtin_f_type->builtin_integer =
 543     init_type (TYPE_CODE_INT,
 544                gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 545                0, "integer", (struct objfile *) NULL);
 546
 547   builtin_f_type->builtin_logical =
 548     init_type (TYPE_CODE_BOOL,
 549                gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 550                TYPE_FLAG_UNSIGNED, "logical*4", (struct objfile *) NULL);
 551
 552   builtin_f_type->builtin_real =
 553     init_type (TYPE_CODE_FLT,
 554                gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
 555                0,
 556                "real", (struct objfile *) NULL);
 557
 558   builtin_f_type->builtin_real_s8 =
 559     init_type (TYPE_CODE_FLT,
 560                gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 561                0,
 562                "real*8", (struct objfile *) NULL);
 563
 564   builtin_f_type->builtin_real_s16 =
 565     init_type (TYPE_CODE_FLT,
 566                gdbarch_long_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 567                0,
 568                "real*16", (struct objfile *) NULL);
 569
 570   builtin_f_type->builtin_complex_s8 =
 571     init_type (TYPE_CODE_COMPLEX,
 572                2 * gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
 573                0,
 574                "complex*8", (struct objfile *) NULL);
 575   TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s8)
 576     = builtin_f_type->builtin_real;
 577
 578   builtin_f_type->builtin_complex_s16 =
 579     init_type (TYPE_CODE_COMPLEX,
 580                2 * gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 581                0,
 582                "complex*16", (struct objfile *) NULL);
 583   TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s16)
 584     = builtin_f_type->builtin_real_s8;
 585
 586   /* We have a new size == 4 double floats for the
 587      complex*32 data type */
 588
 589   builtin_f_type->builtin_complex_s32 =
 590     init_type (TYPE_CODE_COMPLEX,
 591                2 * gdbarch_long_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 592                0,
 593                "complex*32", (struct objfile *) NULL);
 594   TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s32)
 595     = builtin_f_type->builtin_real_s16;
 596
 597   return builtin_f_type;
 598 }
 599
 600 static struct gdbarch_data *f_type_data;
 601
 602 const struct builtin_f_type *
 603 builtin_f_type (struct gdbarch *gdbarch)
 604 {
 605   return gdbarch_data (gdbarch, f_type_data);
 606 }
 607
 608 void
 609 _initialize_f_language (void)
 610 {
 611   f_type_data = gdbarch_data_register_post_init (build_fortran_types);
 612
 613   add_language (&f_language_defn);
 614 }
 615
 616 #if 0
 617 static SAVED_BF_PTR
 618 allocate_saved_bf_node (void)
 619 {
 620   SAVED_BF_PTR new;
 621
 622   new = (SAVED_BF_PTR) xmalloc (sizeof (SAVED_BF));
 623   return (new);
 624 }
 625
 626 static SAVED_FUNCTION *
 627 allocate_saved_function_node (void)
 628 {
 629   SAVED_FUNCTION *new;
 630
 631   new = (SAVED_FUNCTION *) xmalloc (sizeof (SAVED_FUNCTION));
 632   return (new);
 633 }
 634
 635 static SAVED_F77_COMMON_PTR
 636 allocate_saved_f77_common_node (void)
 637 {
 638   SAVED_F77_COMMON_PTR new;
 639
 640   new = (SAVED_F77_COMMON_PTR) xmalloc (sizeof (SAVED_F77_COMMON));
 641   return (new);
 642 }
 643
 644 static COMMON_ENTRY_PTR
 645 allocate_common_entry_node (void)
 646 {
 647   COMMON_ENTRY_PTR new;
 648
 649   new = (COMMON_ENTRY_PTR) xmalloc (sizeof (COMMON_ENTRY));
 650   return (new);
 651 }
 652 #endif
 653
 654 SAVED_F77_COMMON_PTR head_common_list = NULL;   /* Ptr to 1st saved COMMON  */
 655 SAVED_F77_COMMON_PTR tail_common_list = NULL;   /* Ptr to last saved COMMON  */
 656 SAVED_F77_COMMON_PTR current_common = NULL;     /* Ptr to current COMMON */
 657
 658 #if 0
 659 static SAVED_BF_PTR saved_bf_list = NULL;       /* Ptr to (.bf,function)
 660                                                    list */
 661 static SAVED_BF_PTR saved_bf_list_end = NULL;   /* Ptr to above list's end */
 662 static SAVED_BF_PTR current_head_bf_list = NULL;        /* Current head of above list
 663                                                          */
 664
 665 static SAVED_BF_PTR tmp_bf_ptr; /* Generic temporary for use
 666                                    in macros */
 667
 668 /* The following function simply enters a given common block onto
 669    the global common block chain */
 670
 671 static void
 672 add_common_block (char *name, CORE_ADDR offset, int secnum, char *func_stab)
 673 {
 674   SAVED_F77_COMMON_PTR tmp;
 675   char *c, *local_copy_func_stab;
 676
 677   /* If the COMMON block we are trying to add has a blank
 678      name (i.e. "#BLNK_COM") then we set it to __BLANK
 679      because the darn "#" character makes GDB's input
 680      parser have fits. */
 681
 682
 683   if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0
 684       || strcmp (name, BLANK_COMMON_NAME_MF77) == 0)
 685     {
 686
 687       xfree (name);
 688       name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
 689       strcpy (name, BLANK_COMMON_NAME_LOCAL);
 690     }
 691
 692   tmp = allocate_saved_f77_common_node ();
 693
 694   local_copy_func_stab = xmalloc (strlen (func_stab) + 1);
 695   strcpy (local_copy_func_stab, func_stab);
 696
 697   tmp->name = xmalloc (strlen (name) + 1);
 698
 699   /* local_copy_func_stab is a stabstring, let us first extract the
 700      function name from the stab by NULLing out the ':' character. */
 701
 702
 703   c = NULL;
 704   c = strchr (local_copy_func_stab, ':');
 705
 706   if (c)
 707     *c = '\0';
 708   else
 709     error (_("Malformed function STAB found in add_common_block()"));
 710
 711
 712   tmp->owning_function = xmalloc (strlen (local_copy_func_stab) + 1);
 713
 714   strcpy (tmp->owning_function, local_copy_func_stab);
 715
 716   strcpy (tmp->name, name);
 717   tmp->offset = offset;
 718   tmp->next = NULL;
 719   tmp->entries = NULL;
 720   tmp->secnum = secnum;
 721
 722   current_common = tmp;
 723
 724   if (head_common_list == NULL)
 725     {
 726       head_common_list = tail_common_list = tmp;
 727     }
 728   else
 729     {
 730       tail_common_list->next = tmp;
 731       tail_common_list = tmp;
 732     }
 733 }
 734 #endif
 735
 736 /* The following function simply enters a given common entry onto
 737    the "current_common" block that has been saved away. */
 738
 739 #if 0
 740 static void
 741 add_common_entry (struct symbol *entry_sym_ptr)
 742 {
 743   COMMON_ENTRY_PTR tmp;
 744
 745
 746
 747   /* The order of this list is important, since
 748      we expect the entries to appear in decl.
 749      order when we later issue "info common" calls */
 750
 751   tmp = allocate_common_entry_node ();
 752
 753   tmp->next = NULL;
 754   tmp->symbol = entry_sym_ptr;
 755
 756   if (current_common == NULL)
 757     error (_("Attempt to add COMMON entry with no block open!"));
 758   else
 759     {
 760       if (current_common->entries == NULL)
 761         {
 762           current_common->entries = tmp;
 763           current_common->end_of_entries = tmp;
 764         }
 765       else
 766         {
 767           current_common->end_of_entries->next = tmp;
 768           current_common->end_of_entries = tmp;
 769         }
 770     }
 771 }
 772 #endif
 773
 774 /* This routine finds the first encountred COMMON block named "name" */
 775
 776 #if 0
 777 static SAVED_F77_COMMON_PTR
 778 find_first_common_named (char *name)
 779 {
 780
 781   SAVED_F77_COMMON_PTR tmp;
 782
 783   tmp = head_common_list;
 784
 785   while (tmp != NULL)
 786     {
 787       if (strcmp (tmp->name, name) == 0)
 788         return (tmp);
 789       else
 790         tmp = tmp->next;
 791     }
 792   return (NULL);
 793 }
 794 #endif
 795
 796 /* This routine finds the first encountred COMMON block named "name"
 797    that belongs to function funcname */
 798
 799 SAVED_F77_COMMON_PTR
 800 find_common_for_function (char *name, char *funcname)
 801 {
 802
 803   SAVED_F77_COMMON_PTR tmp;
 804
 805   tmp = head_common_list;
 806
 807   while (tmp != NULL)
 808     {
 809       if (DEPRECATED_STREQ (tmp->name, name)
 810           && DEPRECATED_STREQ (tmp->owning_function, funcname))
 811         return (tmp);
 812       else
 813         tmp = tmp->next;
 814     }
 815   return (NULL);
 816 }
 817
 818
 819 #if 0
 820
 821 /* The following function is called to patch up the offsets
 822    for the statics contained in the COMMON block named
 823    "name."  */
 824
 825 static void
 826 patch_common_entries (SAVED_F77_COMMON_PTR blk, CORE_ADDR offset, int secnum)
 827 {
 828   COMMON_ENTRY_PTR entry;
 829
 830   blk->offset = offset;         /* Keep this around for future use. */
 831
 832   entry = blk->entries;
 833
 834   while (entry != NULL)
 835     {
 836       SYMBOL_VALUE (entry->symbol) += offset;
 837       SYMBOL_SECTION (entry->symbol) = secnum;
 838
 839       entry = entry->next;
 840     }
 841   blk->secnum = secnum;
 842 }
 843
 844 /* Patch all commons named "name" that need patching.Since COMMON
 845    blocks occur with relative infrequency, we simply do a linear scan on
 846    the name.  Eventually, the best way to do this will be a
 847    hashed-lookup.  Secnum is the section number for the .bss section
 848    (which is where common data lives). */
 849
 850 static void
 851 patch_all_commons_by_name (char *name, CORE_ADDR offset, int secnum)
 852 {
 853
 854   SAVED_F77_COMMON_PTR tmp;
 855
 856   /* For blank common blocks, change the canonical reprsentation
 857      of a blank name */
 858
 859   if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0
 860       || strcmp (name, BLANK_COMMON_NAME_MF77) == 0)
 861     {
 862       xfree (name);
 863       name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
 864       strcpy (name, BLANK_COMMON_NAME_LOCAL);
 865     }
 866
 867   tmp = head_common_list;
 868
 869   while (tmp != NULL)
 870     {
 871       if (COMMON_NEEDS_PATCHING (tmp))
 872         if (strcmp (tmp->name, name) == 0)
 873           patch_common_entries (tmp, offset, secnum);
 874
 875       tmp = tmp->next;
 876     }
 877 }
 878 #endif
 879
 880 /* This macro adds the symbol-number for the start of the function
 881    (the symbol number of the .bf) referenced by symnum_fcn to a
 882    list.  This list, in reality should be a FIFO queue but since
 883    #line pragmas sometimes cause line ranges to get messed up
 884    we simply create a linear list.  This list can then be searched
 885    first by a queueing algorithm and upon failure fall back to
 886    a linear scan. */
 887
 888 #if 0
 889 #define ADD_BF_SYMNUM(bf_sym,fcn_sym) \
 890   \
 891   if (saved_bf_list == NULL) \
 892 { \
 893     tmp_bf_ptr = allocate_saved_bf_node(); \
 894       \
 895         tmp_bf_ptr->symnum_bf = (bf_sym); \
 896           tmp_bf_ptr->symnum_fcn = (fcn_sym);  \
 897             tmp_bf_ptr->next = NULL; \
 898               \
 899                 current_head_bf_list = saved_bf_list = tmp_bf_ptr; \
 900                   saved_bf_list_end = tmp_bf_ptr; \
 901                   } \
 902 else \
 903 {  \
 904      tmp_bf_ptr = allocate_saved_bf_node(); \
 905        \
 906          tmp_bf_ptr->symnum_bf = (bf_sym);  \
 907            tmp_bf_ptr->symnum_fcn = (fcn_sym);  \
 908              tmp_bf_ptr->next = NULL;  \
 909                \
 910                  saved_bf_list_end->next = tmp_bf_ptr;  \
 911                    saved_bf_list_end = tmp_bf_ptr; \
 912                    }
 913 #endif
 914
 915 /* This function frees the entire (.bf,function) list */
 916
 917 #if 0
 918 static void
 919 clear_bf_list (void)
 920 {
 921
 922   SAVED_BF_PTR tmp = saved_bf_list;
 923   SAVED_BF_PTR next = NULL;
 924
 925   while (tmp != NULL)
 926     {
 927       next = tmp->next;
 928       xfree (tmp);
 929       tmp = next;
 930     }
 931   saved_bf_list = NULL;
 932 }
 933 #endif
 934
 935 int global_remote_debug;
 936
 937 #if 0
 938
 939 static long
 940 get_bf_for_fcn (long the_function)
 941 {
 942   SAVED_BF_PTR tmp;
 943   int nprobes = 0;
 944
 945   /* First use a simple queuing algorithm (i.e. look and see if the
 946      item at the head of the queue is the one you want)  */
 947
 948   if (saved_bf_list == NULL)
 949     internal_error (__FILE__, __LINE__,
 950                     _("cannot get .bf node off empty list"));
 951
 952   if (current_head_bf_list != NULL)
 953     if (current_head_bf_list->symnum_fcn == the_function)
 954       {
 955         if (global_remote_debug)
 956           fprintf_unfiltered (gdb_stderr, "*");
 957
 958         tmp = current_head_bf_list;
 959         current_head_bf_list = current_head_bf_list->next;
 960         return (tmp->symnum_bf);
 961       }
 962
 963   /* If the above did not work (probably because #line directives were
 964      used in the sourcefile and they messed up our internal tables) we now do
 965      the ugly linear scan */
 966
 967   if (global_remote_debug)
 968     fprintf_unfiltered (gdb_stderr, "\ndefaulting to linear scan\n");
 969
 970   nprobes = 0;
 971   tmp = saved_bf_list;
 972   while (tmp != NULL)
 973     {
 974       nprobes++;
 975       if (tmp->symnum_fcn == the_function)
 976         {
 977           if (global_remote_debug)
 978             fprintf_unfiltered (gdb_stderr, "Found in %d probes\n", nprobes);
 979           current_head_bf_list = tmp->next;
 980           return (tmp->symnum_bf);
 981         }
 982       tmp = tmp->next;
 983     }
 984
 985   return (-1);
 986 }
 987
 988 static SAVED_FUNCTION_PTR saved_function_list = NULL;
 989 static SAVED_FUNCTION_PTR saved_function_list_end = NULL;
 990
 991 static void
 992 clear_function_list (void)
 993 {
 994   SAVED_FUNCTION_PTR tmp = saved_function_list;
 995   SAVED_FUNCTION_PTR next = NULL;
 996
 997   while (tmp != NULL)
 998     {
 999       next = tmp->next;
1000       xfree (tmp);
1001       tmp = next;
1002     }
1003
1004   saved_function_list = NULL;
1005 }
1006 #endif