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 3 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  23
  24 #include "defs.h"
  25 #include "gdb_string.h"
  26 #include "symtab.h"
  27 #include "gdbtypes.h"
  28 #include "expression.h"
  29 #include "parser-defs.h"
  30 #include "language.h"
  31 #include "f-lang.h"
  32 #include "valprint.h"
  33 #include "value.h"
  34
  35
  36 /* Following is dubious stuff that had been in the xcoff reader. */
  37
  38 struct saved_fcn
  39   {
  40     long line_offset;           /* Line offset for function */
  41     struct saved_fcn *next;
  42   };
  43
  44
  45 struct saved_bf_symnum
  46   {
  47     long symnum_fcn;            /* Symnum of function (i.e. .function directive) */
  48     long symnum_bf;             /* Symnum of .bf for this function */
  49     struct saved_bf_symnum *next;
  50   };
  51
  52 typedef struct saved_fcn SAVED_FUNCTION, *SAVED_FUNCTION_PTR;
  53 typedef struct saved_bf_symnum SAVED_BF, *SAVED_BF_PTR;
  54
  55 /* Local functions */
  56
  57 extern void _initialize_f_language (void);
  58 #if 0
  59 static void clear_function_list (void);
  60 static long get_bf_for_fcn (long);
  61 static void clear_bf_list (void);
  62 static void patch_all_commons_by_name (char *, CORE_ADDR, int);
  63 static SAVED_F77_COMMON_PTR find_first_common_named (char *);
  64 static void add_common_entry (struct symbol *);
  65 static void add_common_block (char *, CORE_ADDR, int, char *);
  66 static SAVED_FUNCTION *allocate_saved_function_node (void);
  67 static SAVED_BF_PTR allocate_saved_bf_node (void);
  68 static COMMON_ENTRY_PTR allocate_common_entry_node (void);
  69 static SAVED_F77_COMMON_PTR allocate_saved_f77_common_node (void);
  70 static void patch_common_entries (SAVED_F77_COMMON_PTR, CORE_ADDR, int);
  71 #endif
  72
  73 static struct type *f_create_fundamental_type (struct objfile *, int);
  74 static void f_printchar (int c, struct ui_file * stream);
  75 static void f_emit_char (int c, struct ui_file * stream, int quoter);
  76
  77 /* Print the character C on STREAM as part of the contents of a literal
  78    string whose delimiter is QUOTER.  Note that that format for printing
  79    characters and strings is language specific.
  80    FIXME:  This is a copy of the same function from c-exp.y.  It should
  81    be replaced with a true F77 version.  */
  82
  83 static void
  84 f_emit_char (int c, struct ui_file *stream, int quoter)
  85 {
  86   c &= 0xFF;                    /* Avoid sign bit follies */
  87
  88   if (PRINT_LITERAL_FORM (c))
  89     {
  90       if (c == '\\' || c == quoter)
  91         fputs_filtered ("\\", stream);
  92       fprintf_filtered (stream, "%c", c);
  93     }
  94   else
  95     {
  96       switch (c)
  97         {
  98         case '\n':
  99           fputs_filtered ("\\n", stream);
 100           break;
 101         case '\b':
 102           fputs_filtered ("\\b", stream);
 103           break;
 104         case '\t':
 105           fputs_filtered ("\\t", stream);
 106           break;
 107         case '\f':
 108           fputs_filtered ("\\f", stream);
 109           break;
 110         case '\r':
 111           fputs_filtered ("\\r", stream);
 112           break;
 113         case '\033':
 114           fputs_filtered ("\\e", stream);
 115           break;
 116         case '\007':
 117           fputs_filtered ("\\a", stream);
 118           break;
 119         default:
 120           fprintf_filtered (stream, "\\%.3o", (unsigned int) c);
 121           break;
 122         }
 123     }
 124 }
 125
 126 /* FIXME:  This is a copy of the same function from c-exp.y.  It should
 127    be replaced with a true F77version. */
 128
 129 static void
 130 f_printchar (int c, struct ui_file *stream)
 131 {
 132   fputs_filtered ("'", stream);
 133   LA_EMIT_CHAR (c, stream, '\'');
 134   fputs_filtered ("'", stream);
 135 }
 136
 137 /* Print the character string STRING, printing at most LENGTH characters.
 138    Printing stops early if the number hits print_max; repeat counts
 139    are printed as appropriate.  Print ellipses at the end if we
 140    had to stop before printing LENGTH characters, or if FORCE_ELLIPSES.
 141    FIXME:  This is a copy of the same function from c-exp.y.  It should
 142    be replaced with a true F77 version. */
 143
 144 static void
 145 f_printstr (struct ui_file *stream, const gdb_byte *string,
 146             unsigned int length, int width, int force_ellipses)
 147 {
 148   unsigned int i;
 149   unsigned int things_printed = 0;
 150   int in_quotes = 0;
 151   int need_comma = 0;
 152
 153   if (length == 0)
 154     {
 155       fputs_filtered ("''", gdb_stdout);
 156       return;
 157     }
 158
 159   for (i = 0; i < length && things_printed < print_max; ++i)
 160     {
 161       /* Position of the character we are examining
 162          to see whether it is repeated.  */
 163       unsigned int rep1;
 164       /* Number of repetitions we have detected so far.  */
 165       unsigned int reps;
 166
 167       QUIT;
 168
 169       if (need_comma)
 170         {
 171           fputs_filtered (", ", stream);
 172           need_comma = 0;
 173         }
 174
 175       rep1 = i + 1;
 176       reps = 1;
 177       while (rep1 < length && string[rep1] == string[i])
 178         {
 179           ++rep1;
 180           ++reps;
 181         }
 182
 183       if (reps > repeat_count_threshold)
 184         {
 185           if (in_quotes)
 186             {
 187               if (inspect_it)
 188                 fputs_filtered ("\\', ", stream);
 189               else
 190                 fputs_filtered ("', ", stream);
 191               in_quotes = 0;
 192             }
 193           f_printchar (string[i], stream);
 194           fprintf_filtered (stream, " <repeats %u times>", reps);
 195           i = rep1 - 1;
 196           things_printed += repeat_count_threshold;
 197           need_comma = 1;
 198         }
 199       else
 200         {
 201           if (!in_quotes)
 202             {
 203               if (inspect_it)
 204                 fputs_filtered ("\\'", stream);
 205               else
 206                 fputs_filtered ("'", stream);
 207               in_quotes = 1;
 208             }
 209           LA_EMIT_CHAR (string[i], stream, '"');
 210           ++things_printed;
 211         }
 212     }
 213
 214   /* Terminate the quotes if necessary.  */
 215   if (in_quotes)
 216     {
 217       if (inspect_it)
 218         fputs_filtered ("\\'", stream);
 219       else
 220         fputs_filtered ("'", stream);
 221     }
 222
 223   if (force_ellipses || i < length)
 224     fputs_filtered ("...", stream);
 225 }
 226
 227 /* FIXME:  This is a copy of c_create_fundamental_type(), before
 228    all the non-C types were stripped from it.  Needs to be fixed
 229    by an experienced F77 programmer. */
 230
 231 static struct type *
 232 f_create_fundamental_type (struct objfile *objfile, int typeid)
 233 {
 234   struct type *type = NULL;
 235
 236   switch (typeid)
 237     {
 238     case FT_VOID:
 239       type = init_type (TYPE_CODE_VOID,
 240                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 241                         0, "VOID", objfile);
 242       break;
 243     case FT_BOOLEAN:
 244       type = init_type (TYPE_CODE_BOOL,
 245                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 246                         TYPE_FLAG_UNSIGNED, "boolean", objfile);
 247       break;
 248     case FT_STRING:
 249       type = init_type (TYPE_CODE_STRING,
 250                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 251                         0, "string", objfile);
 252       break;
 253     case FT_CHAR:
 254       type = init_type (TYPE_CODE_INT,
 255                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 256                         0, "character", objfile);
 257       break;
 258     case FT_SIGNED_CHAR:
 259       type = init_type (TYPE_CODE_INT,
 260                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 261                         0, "integer*1", objfile);
 262       break;
 263     case FT_UNSIGNED_CHAR:
 264       type = init_type (TYPE_CODE_BOOL,
 265                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 266                         TYPE_FLAG_UNSIGNED, "logical*1", objfile);
 267       break;
 268     case FT_SHORT:
 269       type = init_type (TYPE_CODE_INT,
 270                         gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
 271                         0, "integer*2", objfile);
 272       break;
 273     case FT_SIGNED_SHORT:
 274       type = init_type (TYPE_CODE_INT,
 275                         gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
 276                         0, "short", objfile);   /* FIXME-fnf */
 277       break;
 278     case FT_UNSIGNED_SHORT:
 279       type = init_type (TYPE_CODE_BOOL,
 280                         gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
 281                         TYPE_FLAG_UNSIGNED, "logical*2", objfile);
 282       break;
 283     case FT_INTEGER:
 284       type = init_type (TYPE_CODE_INT,
 285                         gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 286                         0, "integer*4", objfile);
 287       break;
 288     case FT_SIGNED_INTEGER:
 289       type = init_type (TYPE_CODE_INT,
 290                         gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 291                         0, "integer", objfile);         /* FIXME -fnf */
 292       break;
 293     case FT_UNSIGNED_INTEGER:
 294       type = init_type (TYPE_CODE_BOOL,
 295                         gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 296                         TYPE_FLAG_UNSIGNED, "logical*4", objfile);
 297       break;
 298     case FT_FIXED_DECIMAL:
 299       type = init_type (TYPE_CODE_INT,
 300                         gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 301                         0, "fixed decimal", objfile);
 302       break;
 303     case FT_LONG:
 304       type = init_type (TYPE_CODE_INT,
 305                         gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
 306                         0, "long", objfile);
 307       break;
 308     case FT_SIGNED_LONG:
 309       type = init_type (TYPE_CODE_INT,
 310                         gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
 311                         0, "long", objfile);    /* FIXME -fnf */
 312       break;
 313     case FT_UNSIGNED_LONG:
 314       type = init_type (TYPE_CODE_INT,
 315                         gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
 316                         TYPE_FLAG_UNSIGNED, "unsigned long", objfile);
 317       break;
 318     case FT_LONG_LONG:
 319       type = init_type (TYPE_CODE_INT,
 320                         gdbarch_long_long_bit (current_gdbarch)
 321                          / TARGET_CHAR_BIT,
 322                         0, "long long", objfile);
 323       break;
 324     case FT_SIGNED_LONG_LONG:
 325       type = init_type (TYPE_CODE_INT,
 326                         gdbarch_long_long_bit (current_gdbarch)
 327                          / TARGET_CHAR_BIT,
 328                         0, "signed long long", objfile);
 329       break;
 330     case FT_UNSIGNED_LONG_LONG:
 331       type = init_type (TYPE_CODE_INT,
 332                         gdbarch_long_long_bit (current_gdbarch)
 333                          / TARGET_CHAR_BIT,
 334                         TYPE_FLAG_UNSIGNED, "unsigned long long", objfile);
 335       break;
 336     case FT_FLOAT:
 337       type = init_type (TYPE_CODE_FLT,
 338                         gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
 339                         0, "real", objfile);
 340       break;
 341     case FT_DBL_PREC_FLOAT:
 342       type = init_type (TYPE_CODE_FLT,
 343                         gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 344                         0, "real*8", objfile);
 345       break;
 346     case FT_FLOAT_DECIMAL:
 347       type = init_type (TYPE_CODE_FLT,
 348                         gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 349                         0, "floating decimal", objfile);
 350       break;
 351     case FT_EXT_PREC_FLOAT:
 352       type = init_type (TYPE_CODE_FLT,
 353                         gdbarch_long_double_bit (current_gdbarch)
 354                           / TARGET_CHAR_BIT,
 355                         0, "real*16", objfile);
 356       break;
 357     case FT_COMPLEX:
 358       type = init_type (TYPE_CODE_COMPLEX,
 359                         2 * gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
 360                         0, "complex*8", objfile);
 361       TYPE_TARGET_TYPE (type) = builtin_type_f_real;
 362       break;
 363     case FT_DBL_PREC_COMPLEX:
 364       type = init_type (TYPE_CODE_COMPLEX,
 365                         2 * gdbarch_double_bit (current_gdbarch)
 366                           / TARGET_CHAR_BIT,
 367                         0, "complex*16", objfile);
 368       TYPE_TARGET_TYPE (type) = builtin_type_f_real_s8;
 369       break;
 370     case FT_EXT_PREC_COMPLEX:
 371       type = init_type (TYPE_CODE_COMPLEX,
 372                         2 * gdbarch_long_double_bit (current_gdbarch)
 373                           / TARGET_CHAR_BIT,
 374                         0, "complex*32", objfile);
 375       TYPE_TARGET_TYPE (type) = builtin_type_f_real_s16;
 376       break;
 377     default:
 378       /* FIXME:  For now, if we are asked to produce a type not in this
 379          language, create the equivalent of a C integer type with the
 380          name "<?type?>".  When all the dust settles from the type
 381          reconstruction work, this should probably become an error. */
 382       type = init_type (TYPE_CODE_INT,
 383                         gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 384                         0, "<?type?>", objfile);
 385       warning (_("internal error: no F77 fundamental type %d"), typeid);
 386       break;
 387     }
 388   return (type);
 389 }
 390 \f
 391
 392 /* Table of operators and their precedences for printing expressions.  */
 393
 394 static const struct op_print f_op_print_tab[] =
 395 {
 396   {"+", BINOP_ADD, PREC_ADD, 0},
 397   {"+", UNOP_PLUS, PREC_PREFIX, 0},
 398   {"-", BINOP_SUB, PREC_ADD, 0},
 399   {"-", UNOP_NEG, PREC_PREFIX, 0},
 400   {"*", BINOP_MUL, PREC_MUL, 0},
 401   {"/", BINOP_DIV, PREC_MUL, 0},
 402   {"DIV", BINOP_INTDIV, PREC_MUL, 0},
 403   {"MOD", BINOP_REM, PREC_MUL, 0},
 404   {"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
 405   {".OR.", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
 406   {".AND.", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
 407   {".NOT.", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
 408   {".EQ.", BINOP_EQUAL, PREC_EQUAL, 0},
 409   {".NE.", BINOP_NOTEQUAL, PREC_EQUAL, 0},
 410   {".LE.", BINOP_LEQ, PREC_ORDER, 0},
 411   {".GE.", BINOP_GEQ, PREC_ORDER, 0},
 412   {".GT.", BINOP_GTR, PREC_ORDER, 0},
 413   {".LT.", BINOP_LESS, PREC_ORDER, 0},
 414   {"**", UNOP_IND, PREC_PREFIX, 0},
 415   {"@", BINOP_REPEAT, PREC_REPEAT, 0},
 416   {NULL, 0, 0, 0}
 417 };
 418 \f
 419 enum f_primitive_types {
 420   f_primitive_type_character,
 421   f_primitive_type_logical,
 422   f_primitive_type_logical_s1,
 423   f_primitive_type_logical_s2,
 424   f_primitive_type_integer,
 425   f_primitive_type_integer_s2,
 426   f_primitive_type_real,
 427   f_primitive_type_real_s8,
 428   f_primitive_type_real_s16,
 429   f_primitive_type_complex_s8,
 430   f_primitive_type_complex_s16,
 431   f_primitive_type_void,
 432   nr_f_primitive_types
 433 };
 434
 435 static void
 436 f_language_arch_info (struct gdbarch *gdbarch,
 437                       struct language_arch_info *lai)
 438 {
 439   const struct builtin_f_type *builtin = builtin_f_type (gdbarch);
 440
 441   lai->string_char_type = builtin->builtin_character;
 442   lai->primitive_type_vector
 443     = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_f_primitive_types + 1,
 444                               struct type *);
 445
 446   lai->primitive_type_vector [f_primitive_type_character]
 447     = builtin->builtin_character;
 448   lai->primitive_type_vector [f_primitive_type_logical]
 449     = builtin->builtin_logical;
 450   lai->primitive_type_vector [f_primitive_type_logical_s1]
 451     = builtin->builtin_logical_s1;
 452   lai->primitive_type_vector [f_primitive_type_logical_s2]
 453     = builtin->builtin_logical_s2;
 454   lai->primitive_type_vector [f_primitive_type_real]
 455     = builtin->builtin_real;
 456   lai->primitive_type_vector [f_primitive_type_real_s8]
 457     = builtin->builtin_real_s8;
 458   lai->primitive_type_vector [f_primitive_type_real_s16]
 459     = builtin->builtin_real_s16;
 460   lai->primitive_type_vector [f_primitive_type_complex_s8]
 461     = builtin->builtin_complex_s8;
 462   lai->primitive_type_vector [f_primitive_type_complex_s16]
 463     = builtin->builtin_complex_s16;
 464   lai->primitive_type_vector [f_primitive_type_void]
 465     = builtin->builtin_void;
 466 }
 467
 468 /* This is declared in c-lang.h but it is silly to import that file for what
 469    is already just a hack. */
 470 extern int c_value_print (struct value *, struct ui_file *, int,
 471                           enum val_prettyprint);
 472
 473 const struct language_defn f_language_defn =
 474 {
 475   "fortran",
 476   language_fortran,
 477   NULL,
 478   range_check_on,
 479   type_check_on,
 480   case_sensitive_off,
 481   array_column_major,
 482   &exp_descriptor_standard,
 483   f_parse,                      /* parser */
 484   f_error,                      /* parser error function */
 485   null_post_parser,
 486   f_printchar,                  /* Print character constant */
 487   f_printstr,                   /* function to print string constant */
 488   f_emit_char,                  /* Function to print a single character */
 489   f_create_fundamental_type,    /* Create fundamental type in this language */
 490   f_print_type,                 /* Print a type using appropriate syntax */
 491   f_val_print,                  /* Print a value using appropriate syntax */
 492   c_value_print,                /* FIXME */
 493   NULL,                         /* Language specific skip_trampoline */
 494   value_of_this,                /* value_of_this */
 495   basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
 496   basic_lookup_transparent_type,/* lookup_transparent_type */
 497   NULL,                         /* Language specific symbol demangler */
 498   NULL,                         /* Language specific class_name_from_physname */
 499   f_op_print_tab,               /* expression operators for printing */
 500   0,                            /* arrays are first-class (not c-style) */
 501   1,                            /* String lower bound */
 502   NULL,
 503   default_word_break_characters,
 504   f_language_arch_info,
 505   default_print_array_index,
 506   default_pass_by_reference,
 507   LANG_MAGIC
 508 };
 509
 510 static void *
 511 build_fortran_types (struct gdbarch *gdbarch)
 512 {
 513   struct builtin_f_type *builtin_f_type
 514     = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_f_type);
 515
 516   builtin_f_type->builtin_void =
 517     init_type (TYPE_CODE_VOID, 1,
 518                0,
 519                "VOID", (struct objfile *) NULL);
 520
 521   builtin_f_type->builtin_character =
 522     init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 523                0,
 524                "character", (struct objfile *) NULL);
 525
 526   builtin_f_type->builtin_logical_s1 =
 527     init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 528                TYPE_FLAG_UNSIGNED,
 529                "logical*1", (struct objfile *) NULL);
 530
 531   builtin_f_type->builtin_integer_s2 =
 532     init_type (TYPE_CODE_INT,
 533                gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
 534                0, "integer*2", (struct objfile *) NULL);
 535
 536   builtin_f_type->builtin_logical_s2 =
 537     init_type (TYPE_CODE_BOOL,
 538                gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
 539                TYPE_FLAG_UNSIGNED, "logical*2", (struct objfile *) NULL);
 540
 541   builtin_f_type->builtin_integer =
 542     init_type (TYPE_CODE_INT,
 543                gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 544                0, "integer", (struct objfile *) NULL);
 545
 546   builtin_f_type->builtin_logical =
 547     init_type (TYPE_CODE_BOOL,
 548                gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 549                TYPE_FLAG_UNSIGNED, "logical*4", (struct objfile *) NULL);
 550
 551   builtin_f_type->builtin_real =
 552     init_type (TYPE_CODE_FLT,
 553                gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
 554                0,
 555                "real", (struct objfile *) NULL);
 556
 557   builtin_f_type->builtin_real_s8 =
 558     init_type (TYPE_CODE_FLT,
 559                gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 560                0,
 561                "real*8", (struct objfile *) NULL);
 562
 563   builtin_f_type->builtin_real_s16 =
 564     init_type (TYPE_CODE_FLT,
 565                gdbarch_long_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 566                0,
 567                "real*16", (struct objfile *) NULL);
 568
 569   builtin_f_type->builtin_complex_s8 =
 570     init_type (TYPE_CODE_COMPLEX,
 571                2 * gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
 572                0,
 573                "complex*8", (struct objfile *) NULL);
 574   TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s8)
 575     = builtin_f_type->builtin_real;
 576
 577   builtin_f_type->builtin_complex_s16 =
 578     init_type (TYPE_CODE_COMPLEX,
 579                2 * gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 580                0,
 581                "complex*16", (struct objfile *) NULL);
 582   TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s16)
 583     = builtin_f_type->builtin_real_s8;
 584
 585   /* We have a new size == 4 double floats for the
 586      complex*32 data type */
 587
 588   builtin_f_type->builtin_complex_s32 =
 589     init_type (TYPE_CODE_COMPLEX,
 590                2 * gdbarch_long_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 591                0,
 592                "complex*32", (struct objfile *) NULL);
 593   TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s32)
 594     = builtin_f_type->builtin_real_s16;
 595
 596   return builtin_f_type;
 597 }
 598
 599 static struct gdbarch_data *f_type_data;
 600
 601 const struct builtin_f_type *
 602 builtin_f_type (struct gdbarch *gdbarch)
 603 {
 604   return gdbarch_data (gdbarch, f_type_data);
 605 }
 606
 607 void
 608 _initialize_f_language (void)
 609 {
 610   f_type_data = gdbarch_data_register_post_init (build_fortran_types);
 611
 612   add_language (&f_language_defn);
 613 }
 614
 615 #if 0
 616 static SAVED_BF_PTR
 617 allocate_saved_bf_node (void)
 618 {
 619   SAVED_BF_PTR new;
 620
 621   new = (SAVED_BF_PTR) xmalloc (sizeof (SAVED_BF));
 622   return (new);
 623 }
 624
 625 static SAVED_FUNCTION *
 626 allocate_saved_function_node (void)
 627 {
 628   SAVED_FUNCTION *new;
 629
 630   new = (SAVED_FUNCTION *) xmalloc (sizeof (SAVED_FUNCTION));
 631   return (new);
 632 }
 633
 634 static SAVED_F77_COMMON_PTR
 635 allocate_saved_f77_common_node (void)
 636 {
 637   SAVED_F77_COMMON_PTR new;
 638
 639   new = (SAVED_F77_COMMON_PTR) xmalloc (sizeof (SAVED_F77_COMMON));
 640   return (new);
 641 }
 642
 643 static COMMON_ENTRY_PTR
 644 allocate_common_entry_node (void)
 645 {
 646   COMMON_ENTRY_PTR new;
 647
 648   new = (COMMON_ENTRY_PTR) xmalloc (sizeof (COMMON_ENTRY));
 649   return (new);
 650 }
 651 #endif
 652
 653 SAVED_F77_COMMON_PTR head_common_list = NULL;   /* Ptr to 1st saved COMMON  */
 654 SAVED_F77_COMMON_PTR tail_common_list = NULL;   /* Ptr to last saved COMMON  */
 655 SAVED_F77_COMMON_PTR current_common = NULL;     /* Ptr to current COMMON */
 656
 657 #if 0
 658 static SAVED_BF_PTR saved_bf_list = NULL;       /* Ptr to (.bf,function)
 659                                                    list */
 660 static SAVED_BF_PTR saved_bf_list_end = NULL;   /* Ptr to above list's end */
 661 static SAVED_BF_PTR current_head_bf_list = NULL;        /* Current head of above list
 662                                                          */
 663
 664 static SAVED_BF_PTR tmp_bf_ptr; /* Generic temporary for use
 665                                    in macros */
 666
 667 /* The following function simply enters a given common block onto
 668    the global common block chain */
 669
 670 static void
 671 add_common_block (char *name, CORE_ADDR offset, int secnum, char *func_stab)
 672 {
 673   SAVED_F77_COMMON_PTR tmp;
 674   char *c, *local_copy_func_stab;
 675
 676   /* If the COMMON block we are trying to add has a blank
 677      name (i.e. "#BLNK_COM") then we set it to __BLANK
 678      because the darn "#" character makes GDB's input
 679      parser have fits. */
 680
 681
 682   if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0
 683       || strcmp (name, BLANK_COMMON_NAME_MF77) == 0)
 684     {
 685
 686       xfree (name);
 687       name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
 688       strcpy (name, BLANK_COMMON_NAME_LOCAL);
 689     }
 690
 691   tmp = allocate_saved_f77_common_node ();
 692
 693   local_copy_func_stab = xmalloc (strlen (func_stab) + 1);
 694   strcpy (local_copy_func_stab, func_stab);
 695
 696   tmp->name = xmalloc (strlen (name) + 1);
 697
 698   /* local_copy_func_stab is a stabstring, let us first extract the
 699      function name from the stab by NULLing out the ':' character. */
 700
 701
 702   c = NULL;
 703   c = strchr (local_copy_func_stab, ':');
 704
 705   if (c)
 706     *c = '\0';
 707   else
 708     error (_("Malformed function STAB found in add_common_block()"));
 709
 710
 711   tmp->owning_function = xmalloc (strlen (local_copy_func_stab) + 1);
 712
 713   strcpy (tmp->owning_function, local_copy_func_stab);
 714
 715   strcpy (tmp->name, name);
 716   tmp->offset = offset;
 717   tmp->next = NULL;
 718   tmp->entries = NULL;
 719   tmp->secnum = secnum;
 720
 721   current_common = tmp;
 722
 723   if (head_common_list == NULL)
 724     {
 725       head_common_list = tail_common_list = tmp;
 726     }
 727   else
 728     {
 729       tail_common_list->next = tmp;
 730       tail_common_list = tmp;
 731     }
 732 }
 733 #endif
 734
 735 /* The following function simply enters a given common entry onto
 736    the "current_common" block that has been saved away. */
 737
 738 #if 0
 739 static void
 740 add_common_entry (struct symbol *entry_sym_ptr)
 741 {
 742   COMMON_ENTRY_PTR tmp;
 743
 744
 745
 746   /* The order of this list is important, since
 747      we expect the entries to appear in decl.
 748      order when we later issue "info common" calls */
 749
 750   tmp = allocate_common_entry_node ();
 751
 752   tmp->next = NULL;
 753   tmp->symbol = entry_sym_ptr;
 754
 755   if (current_common == NULL)
 756     error (_("Attempt to add COMMON entry with no block open!"));
 757   else
 758     {
 759       if (current_common->entries == NULL)
 760         {
 761           current_common->entries = tmp;
 762           current_common->end_of_entries = tmp;
 763         }
 764       else
 765         {
 766           current_common->end_of_entries->next = tmp;
 767           current_common->end_of_entries = tmp;
 768         }
 769     }
 770 }
 771 #endif
 772
 773 /* This routine finds the first encountred COMMON block named "name" */
 774
 775 #if 0
 776 static SAVED_F77_COMMON_PTR
 777 find_first_common_named (char *name)
 778 {
 779
 780   SAVED_F77_COMMON_PTR tmp;
 781
 782   tmp = head_common_list;
 783
 784   while (tmp != NULL)
 785     {
 786       if (strcmp (tmp->name, name) == 0)
 787         return (tmp);
 788       else
 789         tmp = tmp->next;
 790     }
 791   return (NULL);
 792 }
 793 #endif
 794
 795 /* This routine finds the first encountred COMMON block named "name"
 796    that belongs to function funcname */
 797
 798 SAVED_F77_COMMON_PTR
 799 find_common_for_function (char *name, char *funcname)
 800 {
 801
 802   SAVED_F77_COMMON_PTR tmp;
 803
 804   tmp = head_common_list;
 805
 806   while (tmp != NULL)
 807     {
 808       if (DEPRECATED_STREQ (tmp->name, name)
 809           && DEPRECATED_STREQ (tmp->owning_function, funcname))
 810         return (tmp);
 811       else
 812         tmp = tmp->next;
 813     }
 814   return (NULL);
 815 }
 816
 817
 818 #if 0
 819
 820 /* The following function is called to patch up the offsets
 821    for the statics contained in the COMMON block named
 822    "name."  */
 823
 824 static void
 825 patch_common_entries (SAVED_F77_COMMON_PTR blk, CORE_ADDR offset, int secnum)
 826 {
 827   COMMON_ENTRY_PTR entry;
 828
 829   blk->offset = offset;         /* Keep this around for future use. */
 830
 831   entry = blk->entries;
 832
 833   while (entry != NULL)
 834     {
 835       SYMBOL_VALUE (entry->symbol) += offset;
 836       SYMBOL_SECTION (entry->symbol) = secnum;
 837
 838       entry = entry->next;
 839     }
 840   blk->secnum = secnum;
 841 }
 842
 843 /* Patch all commons named "name" that need patching.Since COMMON
 844    blocks occur with relative infrequency, we simply do a linear scan on
 845    the name.  Eventually, the best way to do this will be a
 846    hashed-lookup.  Secnum is the section number for the .bss section
 847    (which is where common data lives). */
 848
 849 static void
 850 patch_all_commons_by_name (char *name, CORE_ADDR offset, int secnum)
 851 {
 852
 853   SAVED_F77_COMMON_PTR tmp;
 854
 855   /* For blank common blocks, change the canonical reprsentation
 856      of a blank name */
 857
 858   if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0
 859       || strcmp (name, BLANK_COMMON_NAME_MF77) == 0)
 860     {
 861       xfree (name);
 862       name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
 863       strcpy (name, BLANK_COMMON_NAME_LOCAL);
 864     }
 865
 866   tmp = head_common_list;
 867
 868   while (tmp != NULL)
 869     {
 870       if (COMMON_NEEDS_PATCHING (tmp))
 871         if (strcmp (tmp->name, name) == 0)
 872           patch_common_entries (tmp, offset, secnum);
 873
 874       tmp = tmp->next;
 875     }
 876 }
 877 #endif
 878
 879 /* This macro adds the symbol-number for the start of the function
 880    (the symbol number of the .bf) referenced by symnum_fcn to a
 881    list.  This list, in reality should be a FIFO queue but since
 882    #line pragmas sometimes cause line ranges to get messed up
 883    we simply create a linear list.  This list can then be searched
 884    first by a queueing algorithm and upon failure fall back to
 885    a linear scan. */
 886
 887 #if 0
 888 #define ADD_BF_SYMNUM(bf_sym,fcn_sym) \
 889   \
 890   if (saved_bf_list == NULL) \
 891 { \
 892     tmp_bf_ptr = allocate_saved_bf_node(); \
 893       \
 894         tmp_bf_ptr->symnum_bf = (bf_sym); \
 895           tmp_bf_ptr->symnum_fcn = (fcn_sym);  \
 896             tmp_bf_ptr->next = NULL; \
 897               \
 898                 current_head_bf_list = saved_bf_list = tmp_bf_ptr; \
 899                   saved_bf_list_end = tmp_bf_ptr; \
 900                   } \
 901 else \
 902 {  \
 903      tmp_bf_ptr = allocate_saved_bf_node(); \
 904        \
 905          tmp_bf_ptr->symnum_bf = (bf_sym);  \
 906            tmp_bf_ptr->symnum_fcn = (fcn_sym);  \
 907              tmp_bf_ptr->next = NULL;  \
 908                \
 909                  saved_bf_list_end->next = tmp_bf_ptr;  \
 910                    saved_bf_list_end = tmp_bf_ptr; \
 911                    }
 912 #endif
 913
 914 /* This function frees the entire (.bf,function) list */
 915
 916 #if 0
 917 static void
 918 clear_bf_list (void)
 919 {
 920
 921   SAVED_BF_PTR tmp = saved_bf_list;
 922   SAVED_BF_PTR next = NULL;
 923
 924   while (tmp != NULL)
 925     {
 926       next = tmp->next;
 927       xfree (tmp);
 928       tmp = next;
 929     }
 930   saved_bf_list = NULL;
 931 }
 932 #endif
 933
 934 int global_remote_debug;
 935
 936 #if 0
 937
 938 static long
 939 get_bf_for_fcn (long the_function)
 940 {
 941   SAVED_BF_PTR tmp;
 942   int nprobes = 0;
 943
 944   /* First use a simple queuing algorithm (i.e. look and see if the
 945      item at the head of the queue is the one you want)  */
 946
 947   if (saved_bf_list == NULL)
 948     internal_error (__FILE__, __LINE__,
 949                     _("cannot get .bf node off empty list"));
 950
 951   if (current_head_bf_list != NULL)
 952     if (current_head_bf_list->symnum_fcn == the_function)
 953       {
 954         if (global_remote_debug)
 955           fprintf_unfiltered (gdb_stderr, "*");
 956
 957         tmp = current_head_bf_list;
 958         current_head_bf_list = current_head_bf_list->next;
 959         return (tmp->symnum_bf);
 960       }
 961
 962   /* If the above did not work (probably because #line directives were
 963      used in the sourcefile and they messed up our internal tables) we now do
 964      the ugly linear scan */
 965
 966   if (global_remote_debug)
 967     fprintf_unfiltered (gdb_stderr, "\ndefaulting to linear scan\n");
 968
 969   nprobes = 0;
 970   tmp = saved_bf_list;
 971   while (tmp != NULL)
 972     {
 973       nprobes++;
 974       if (tmp->symnum_fcn == the_function)
 975         {
 976           if (global_remote_debug)
 977             fprintf_unfiltered (gdb_stderr, "Found in %d probes\n", nprobes);
 978           current_head_bf_list = tmp->next;
 979           return (tmp->symnum_bf);
 980         }
 981       tmp = tmp->next;
 982     }
 983
 984   return (-1);
 985 }
 986
 987 static SAVED_FUNCTION_PTR saved_function_list = NULL;
 988 static SAVED_FUNCTION_PTR saved_function_list_end = NULL;
 989
 990 static void
 991 clear_function_list (void)
 992 {
 993   SAVED_FUNCTION_PTR tmp = saved_function_list;
 994   SAVED_FUNCTION_PTR next = NULL;
 995
 996   while (tmp != NULL)
 997     {
 998       next = tmp->next;
 999       xfree (tmp);
1000       tmp = next;
1001     }
1002
1003   saved_function_list = NULL;
1004 }
1005 #endif