gdb/f-lang.c

   1 /* Fortran language support routines for GDB, the GNU debugger.
   2
   3    Copyright (C) 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003,
   4    2004, 2005, 2007 Free Software Foundation, Inc.
   5
   6    Contributed by Motorola.  Adapted from the C parser by Farooq Butt
   7    (fmbutt@engage.sps.mot.com).
   8
   9    This file is part of GDB.
  10
  11    This program is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 2 of the License, or
  14    (at your option) any later version.
  15
  16    This program is distributed in the hope that it will be useful,
  17    but WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19    GNU General Public License for more details.
  20
  21    You should have received a copy of the GNU General Public License
  22    along with this program; if not, write to the Free Software
  23    Foundation, Inc., 51 Franklin Street, Fifth Floor,
  24    Boston, MA 02110-1301, USA.  */
  25
  26 #include "defs.h"
  27 #include "gdb_string.h"
  28 #include "symtab.h"
  29 #include "gdbtypes.h"
  30 #include "expression.h"
  31 #include "parser-defs.h"
  32 #include "language.h"
  33 #include "f-lang.h"
  34 #include "valprint.h"
  35 #include "value.h"
  36
  37 /* The built-in types of F77.  FIXME: integer*4 is missing, plain
  38    logical is missing (builtin_type_logical is logical*4).  */
  39
  40 struct type *builtin_type_f_character;
  41 struct type *builtin_type_f_logical;
  42 struct type *builtin_type_f_logical_s1;
  43 struct type *builtin_type_f_logical_s2;
  44 struct type *builtin_type_f_integer;
  45 struct type *builtin_type_f_integer_s2;
  46 struct type *builtin_type_f_real;
  47 struct type *builtin_type_f_real_s8;
  48 struct type *builtin_type_f_real_s16;
  49 struct type *builtin_type_f_complex_s8;
  50 struct type *builtin_type_f_complex_s16;
  51 struct type *builtin_type_f_complex_s32;
  52 struct type *builtin_type_f_void;
  53
  54 /* Following is dubious stuff that had been in the xcoff reader. */
  55
  56 struct saved_fcn
  57   {
  58     long line_offset;           /* Line offset for function */
  59     struct saved_fcn *next;
  60   };
  61
  62
  63 struct saved_bf_symnum
  64   {
  65     long symnum_fcn;            /* Symnum of function (i.e. .function directive) */
  66     long symnum_bf;             /* Symnum of .bf for this function */
  67     struct saved_bf_symnum *next;
  68   };
  69
  70 typedef struct saved_fcn SAVED_FUNCTION, *SAVED_FUNCTION_PTR;
  71 typedef struct saved_bf_symnum SAVED_BF, *SAVED_BF_PTR;
  72
  73 /* Local functions */
  74
  75 extern void _initialize_f_language (void);
  76 #if 0
  77 static void clear_function_list (void);
  78 static long get_bf_for_fcn (long);
  79 static void clear_bf_list (void);
  80 static void patch_all_commons_by_name (char *, CORE_ADDR, int);
  81 static SAVED_F77_COMMON_PTR find_first_common_named (char *);
  82 static void add_common_entry (struct symbol *);
  83 static void add_common_block (char *, CORE_ADDR, int, char *);
  84 static SAVED_FUNCTION *allocate_saved_function_node (void);
  85 static SAVED_BF_PTR allocate_saved_bf_node (void);
  86 static COMMON_ENTRY_PTR allocate_common_entry_node (void);
  87 static SAVED_F77_COMMON_PTR allocate_saved_f77_common_node (void);
  88 static void patch_common_entries (SAVED_F77_COMMON_PTR, CORE_ADDR, int);
  89 #endif
  90
  91 static struct type *f_create_fundamental_type (struct objfile *, int);
  92 static void f_printchar (int c, struct ui_file * stream);
  93 static void f_emit_char (int c, struct ui_file * stream, int quoter);
  94
  95 /* Print the character C on STREAM as part of the contents of a literal
  96    string whose delimiter is QUOTER.  Note that that format for printing
  97    characters and strings is language specific.
  98    FIXME:  This is a copy of the same function from c-exp.y.  It should
  99    be replaced with a true F77 version.  */
 100
 101 static void
 102 f_emit_char (int c, struct ui_file *stream, int quoter)
 103 {
 104   c &= 0xFF;                    /* Avoid sign bit follies */
 105
 106   if (PRINT_LITERAL_FORM (c))
 107     {
 108       if (c == '\\' || c == quoter)
 109         fputs_filtered ("\\", stream);
 110       fprintf_filtered (stream, "%c", c);
 111     }
 112   else
 113     {
 114       switch (c)
 115         {
 116         case '\n':
 117           fputs_filtered ("\\n", stream);
 118           break;
 119         case '\b':
 120           fputs_filtered ("\\b", stream);
 121           break;
 122         case '\t':
 123           fputs_filtered ("\\t", stream);
 124           break;
 125         case '\f':
 126           fputs_filtered ("\\f", stream);
 127           break;
 128         case '\r':
 129           fputs_filtered ("\\r", stream);
 130           break;
 131         case '\033':
 132           fputs_filtered ("\\e", stream);
 133           break;
 134         case '\007':
 135           fputs_filtered ("\\a", stream);
 136           break;
 137         default:
 138           fprintf_filtered (stream, "\\%.3o", (unsigned int) c);
 139           break;
 140         }
 141     }
 142 }
 143
 144 /* FIXME:  This is a copy of the same function from c-exp.y.  It should
 145    be replaced with a true F77version. */
 146
 147 static void
 148 f_printchar (int c, struct ui_file *stream)
 149 {
 150   fputs_filtered ("'", stream);
 151   LA_EMIT_CHAR (c, stream, '\'');
 152   fputs_filtered ("'", stream);
 153 }
 154
 155 /* Print the character string STRING, printing at most LENGTH characters.
 156    Printing stops early if the number hits print_max; repeat counts
 157    are printed as appropriate.  Print ellipses at the end if we
 158    had to stop before printing LENGTH characters, or if FORCE_ELLIPSES.
 159    FIXME:  This is a copy of the same function from c-exp.y.  It should
 160    be replaced with a true F77 version. */
 161
 162 static void
 163 f_printstr (struct ui_file *stream, const gdb_byte *string,
 164             unsigned int length, int width, int force_ellipses)
 165 {
 166   unsigned int i;
 167   unsigned int things_printed = 0;
 168   int in_quotes = 0;
 169   int need_comma = 0;
 170
 171   if (length == 0)
 172     {
 173       fputs_filtered ("''", gdb_stdout);
 174       return;
 175     }
 176
 177   for (i = 0; i < length && things_printed < print_max; ++i)
 178     {
 179       /* Position of the character we are examining
 180          to see whether it is repeated.  */
 181       unsigned int rep1;
 182       /* Number of repetitions we have detected so far.  */
 183       unsigned int reps;
 184
 185       QUIT;
 186
 187       if (need_comma)
 188         {
 189           fputs_filtered (", ", stream);
 190           need_comma = 0;
 191         }
 192
 193       rep1 = i + 1;
 194       reps = 1;
 195       while (rep1 < length && string[rep1] == string[i])
 196         {
 197           ++rep1;
 198           ++reps;
 199         }
 200
 201       if (reps > repeat_count_threshold)
 202         {
 203           if (in_quotes)
 204             {
 205               if (inspect_it)
 206                 fputs_filtered ("\\', ", stream);
 207               else
 208                 fputs_filtered ("', ", stream);
 209               in_quotes = 0;
 210             }
 211           f_printchar (string[i], stream);
 212           fprintf_filtered (stream, " <repeats %u times>", reps);
 213           i = rep1 - 1;
 214           things_printed += repeat_count_threshold;
 215           need_comma = 1;
 216         }
 217       else
 218         {
 219           if (!in_quotes)
 220             {
 221               if (inspect_it)
 222                 fputs_filtered ("\\'", stream);
 223               else
 224                 fputs_filtered ("'", stream);
 225               in_quotes = 1;
 226             }
 227           LA_EMIT_CHAR (string[i], stream, '"');
 228           ++things_printed;
 229         }
 230     }
 231
 232   /* Terminate the quotes if necessary.  */
 233   if (in_quotes)
 234     {
 235       if (inspect_it)
 236         fputs_filtered ("\\'", stream);
 237       else
 238         fputs_filtered ("'", stream);
 239     }
 240
 241   if (force_ellipses || i < length)
 242     fputs_filtered ("...", stream);
 243 }
 244
 245 /* FIXME:  This is a copy of c_create_fundamental_type(), before
 246    all the non-C types were stripped from it.  Needs to be fixed
 247    by an experienced F77 programmer. */
 248
 249 static struct type *
 250 f_create_fundamental_type (struct objfile *objfile, int typeid)
 251 {
 252   struct type *type = NULL;
 253
 254   switch (typeid)
 255     {
 256     case FT_VOID:
 257       type = init_type (TYPE_CODE_VOID,
 258                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 259                         0, "VOID", objfile);
 260       break;
 261     case FT_BOOLEAN:
 262       type = init_type (TYPE_CODE_BOOL,
 263                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 264                         TYPE_FLAG_UNSIGNED, "boolean", objfile);
 265       break;
 266     case FT_STRING:
 267       type = init_type (TYPE_CODE_STRING,
 268                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 269                         0, "string", objfile);
 270       break;
 271     case FT_CHAR:
 272       type = init_type (TYPE_CODE_INT,
 273                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 274                         0, "character", objfile);
 275       break;
 276     case FT_SIGNED_CHAR:
 277       type = init_type (TYPE_CODE_INT,
 278                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 279                         0, "integer*1", objfile);
 280       break;
 281     case FT_UNSIGNED_CHAR:
 282       type = init_type (TYPE_CODE_BOOL,
 283                         TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 284                         TYPE_FLAG_UNSIGNED, "logical*1", objfile);
 285       break;
 286     case FT_SHORT:
 287       type = init_type (TYPE_CODE_INT,
 288                         gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
 289                         0, "integer*2", objfile);
 290       break;
 291     case FT_SIGNED_SHORT:
 292       type = init_type (TYPE_CODE_INT,
 293                         gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
 294                         0, "short", objfile);   /* FIXME-fnf */
 295       break;
 296     case FT_UNSIGNED_SHORT:
 297       type = init_type (TYPE_CODE_BOOL,
 298                         gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
 299                         TYPE_FLAG_UNSIGNED, "logical*2", objfile);
 300       break;
 301     case FT_INTEGER:
 302       type = init_type (TYPE_CODE_INT,
 303                         gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 304                         0, "integer*4", objfile);
 305       break;
 306     case FT_SIGNED_INTEGER:
 307       type = init_type (TYPE_CODE_INT,
 308                         gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 309                         0, "integer", objfile);         /* FIXME -fnf */
 310       break;
 311     case FT_UNSIGNED_INTEGER:
 312       type = init_type (TYPE_CODE_BOOL,
 313                         gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 314                         TYPE_FLAG_UNSIGNED, "logical*4", objfile);
 315       break;
 316     case FT_FIXED_DECIMAL:
 317       type = init_type (TYPE_CODE_INT,
 318                         gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 319                         0, "fixed decimal", objfile);
 320       break;
 321     case FT_LONG:
 322       type = init_type (TYPE_CODE_INT,
 323                         gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
 324                         0, "long", objfile);
 325       break;
 326     case FT_SIGNED_LONG:
 327       type = init_type (TYPE_CODE_INT,
 328                         gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
 329                         0, "long", objfile);    /* FIXME -fnf */
 330       break;
 331     case FT_UNSIGNED_LONG:
 332       type = init_type (TYPE_CODE_INT,
 333                         gdbarch_long_bit (current_gdbarch) / TARGET_CHAR_BIT,
 334                         TYPE_FLAG_UNSIGNED, "unsigned long", objfile);
 335       break;
 336     case FT_LONG_LONG:
 337       type = init_type (TYPE_CODE_INT,
 338                         gdbarch_long_long_bit (current_gdbarch)
 339                          / TARGET_CHAR_BIT,
 340                         0, "long long", objfile);
 341       break;
 342     case FT_SIGNED_LONG_LONG:
 343       type = init_type (TYPE_CODE_INT,
 344                         gdbarch_long_long_bit (current_gdbarch)
 345                          / TARGET_CHAR_BIT,
 346                         0, "signed long long", objfile);
 347       break;
 348     case FT_UNSIGNED_LONG_LONG:
 349       type = init_type (TYPE_CODE_INT,
 350                         gdbarch_long_long_bit (current_gdbarch)
 351                          / TARGET_CHAR_BIT,
 352                         TYPE_FLAG_UNSIGNED, "unsigned long long", objfile);
 353       break;
 354     case FT_FLOAT:
 355       type = init_type (TYPE_CODE_FLT,
 356                         gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
 357                         0, "real", objfile);
 358       break;
 359     case FT_DBL_PREC_FLOAT:
 360       type = init_type (TYPE_CODE_FLT,
 361                         gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 362                         0, "real*8", objfile);
 363       break;
 364     case FT_FLOAT_DECIMAL:
 365       type = init_type (TYPE_CODE_FLT,
 366                         gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 367                         0, "floating decimal", objfile);
 368       break;
 369     case FT_EXT_PREC_FLOAT:
 370       type = init_type (TYPE_CODE_FLT,
 371                         gdbarch_long_double_bit (current_gdbarch)
 372                           / TARGET_CHAR_BIT,
 373                         0, "real*16", objfile);
 374       break;
 375     case FT_COMPLEX:
 376       type = init_type (TYPE_CODE_COMPLEX,
 377                         2 * gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
 378                         0, "complex*8", objfile);
 379       TYPE_TARGET_TYPE (type) = builtin_type_f_real;
 380       break;
 381     case FT_DBL_PREC_COMPLEX:
 382       type = init_type (TYPE_CODE_COMPLEX,
 383                         2 * gdbarch_double_bit (current_gdbarch)
 384                           / TARGET_CHAR_BIT,
 385                         0, "complex*16", objfile);
 386       TYPE_TARGET_TYPE (type) = builtin_type_f_real_s8;
 387       break;
 388     case FT_EXT_PREC_COMPLEX:
 389       type = init_type (TYPE_CODE_COMPLEX,
 390                         2 * gdbarch_long_double_bit (current_gdbarch)
 391                           / TARGET_CHAR_BIT,
 392                         0, "complex*32", objfile);
 393       TYPE_TARGET_TYPE (type) = builtin_type_f_real_s16;
 394       break;
 395     default:
 396       /* FIXME:  For now, if we are asked to produce a type not in this
 397          language, create the equivalent of a C integer type with the
 398          name "<?type?>".  When all the dust settles from the type
 399          reconstruction work, this should probably become an error. */
 400       type = init_type (TYPE_CODE_INT,
 401                         gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 402                         0, "<?type?>", objfile);
 403       warning (_("internal error: no F77 fundamental type %d"), typeid);
 404       break;
 405     }
 406   return (type);
 407 }
 408 \f
 409
 410 /* Table of operators and their precedences for printing expressions.  */
 411
 412 static const struct op_print f_op_print_tab[] =
 413 {
 414   {"+", BINOP_ADD, PREC_ADD, 0},
 415   {"+", UNOP_PLUS, PREC_PREFIX, 0},
 416   {"-", BINOP_SUB, PREC_ADD, 0},
 417   {"-", UNOP_NEG, PREC_PREFIX, 0},
 418   {"*", BINOP_MUL, PREC_MUL, 0},
 419   {"/", BINOP_DIV, PREC_MUL, 0},
 420   {"DIV", BINOP_INTDIV, PREC_MUL, 0},
 421   {"MOD", BINOP_REM, PREC_MUL, 0},
 422   {"=", BINOP_ASSIGN, PREC_ASSIGN, 1},
 423   {".OR.", BINOP_LOGICAL_OR, PREC_LOGICAL_OR, 0},
 424   {".AND.", BINOP_LOGICAL_AND, PREC_LOGICAL_AND, 0},
 425   {".NOT.", UNOP_LOGICAL_NOT, PREC_PREFIX, 0},
 426   {".EQ.", BINOP_EQUAL, PREC_EQUAL, 0},
 427   {".NE.", BINOP_NOTEQUAL, PREC_EQUAL, 0},
 428   {".LE.", BINOP_LEQ, PREC_ORDER, 0},
 429   {".GE.", BINOP_GEQ, PREC_ORDER, 0},
 430   {".GT.", BINOP_GTR, PREC_ORDER, 0},
 431   {".LT.", BINOP_LESS, PREC_ORDER, 0},
 432   {"**", UNOP_IND, PREC_PREFIX, 0},
 433   {"@", BINOP_REPEAT, PREC_REPEAT, 0},
 434   {NULL, 0, 0, 0}
 435 };
 436 \f
 437 enum f_primitive_types {
 438   f_primitive_type_character,
 439   f_primitive_type_logical,
 440   f_primitive_type_logical_s1,
 441   f_primitive_type_logical_s2,
 442   f_primitive_type_integer,
 443   f_primitive_type_integer_s2,
 444   f_primitive_type_real,
 445   f_primitive_type_real_s8,
 446   f_primitive_type_real_s16,
 447   f_primitive_type_complex_s8,
 448   f_primitive_type_complex_s16,
 449   f_primitive_type_void,
 450   nr_f_primitive_types
 451 };
 452
 453 static void
 454 f_language_arch_info (struct gdbarch *gdbarch,
 455                       struct language_arch_info *lai)
 456 {
 457   lai->string_char_type = builtin_type_f_character;
 458   lai->primitive_type_vector
 459     = GDBARCH_OBSTACK_CALLOC (gdbarch, nr_f_primitive_types + 1,
 460                               struct type *);
 461
 462   lai->primitive_type_vector [f_primitive_type_character]
 463     = builtin_type_f_character;
 464   lai->primitive_type_vector [f_primitive_type_logical]
 465     = builtin_type_f_logical;
 466   lai->primitive_type_vector [f_primitive_type_logical_s1]
 467     = builtin_type_f_logical_s1;
 468   lai->primitive_type_vector [f_primitive_type_logical_s2]
 469     = builtin_type_f_logical_s2;
 470   lai->primitive_type_vector [f_primitive_type_real]
 471     = builtin_type_f_real;
 472   lai->primitive_type_vector [f_primitive_type_real_s8]
 473     = builtin_type_f_real_s8;
 474   lai->primitive_type_vector [f_primitive_type_real_s16]
 475     = builtin_type_f_real_s16;
 476   lai->primitive_type_vector [f_primitive_type_complex_s8]
 477     = builtin_type_f_complex_s8;
 478   lai->primitive_type_vector [f_primitive_type_complex_s16]
 479     = builtin_type_f_complex_s16;
 480   lai->primitive_type_vector [f_primitive_type_void]
 481     = builtin_type_f_void;
 482 }
 483
 484 /* This is declared in c-lang.h but it is silly to import that file for what
 485    is already just a hack. */
 486 extern int c_value_print (struct value *, struct ui_file *, int,
 487                           enum val_prettyprint);
 488
 489 const struct language_defn f_language_defn =
 490 {
 491   "fortran",
 492   language_fortran,
 493   NULL,
 494   range_check_on,
 495   type_check_on,
 496   case_sensitive_off,
 497   array_column_major,
 498   &exp_descriptor_standard,
 499   f_parse,                      /* parser */
 500   f_error,                      /* parser error function */
 501   null_post_parser,
 502   f_printchar,                  /* Print character constant */
 503   f_printstr,                   /* function to print string constant */
 504   f_emit_char,                  /* Function to print a single character */
 505   f_create_fundamental_type,    /* Create fundamental type in this language */
 506   f_print_type,                 /* Print a type using appropriate syntax */
 507   f_val_print,                  /* Print a value using appropriate syntax */
 508   c_value_print,                /* FIXME */
 509   NULL,                         /* Language specific skip_trampoline */
 510   value_of_this,                /* value_of_this */
 511   basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
 512   basic_lookup_transparent_type,/* lookup_transparent_type */
 513   NULL,                         /* Language specific symbol demangler */
 514   NULL,                         /* Language specific class_name_from_physname */
 515   f_op_print_tab,               /* expression operators for printing */
 516   0,                            /* arrays are first-class (not c-style) */
 517   1,                            /* String lower bound */
 518   NULL,
 519   default_word_break_characters,
 520   f_language_arch_info,
 521   default_print_array_index,
 522   LANG_MAGIC
 523 };
 524
 525 static void
 526 build_fortran_types (void)
 527 {
 528   builtin_type_f_void =
 529     init_type (TYPE_CODE_VOID, 1,
 530                0,
 531                "VOID", (struct objfile *) NULL);
 532
 533   builtin_type_f_character =
 534     init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 535                0,
 536                "character", (struct objfile *) NULL);
 537
 538   builtin_type_f_logical_s1 =
 539     init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 540                TYPE_FLAG_UNSIGNED,
 541                "logical*1", (struct objfile *) NULL);
 542
 543   builtin_type_f_integer_s2 =
 544     init_type (TYPE_CODE_INT,
 545                gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
 546                0, "integer*2", (struct objfile *) NULL);
 547
 548   builtin_type_f_logical_s2 =
 549     init_type (TYPE_CODE_BOOL,
 550                gdbarch_short_bit (current_gdbarch) / TARGET_CHAR_BIT,
 551                TYPE_FLAG_UNSIGNED, "logical*2", (struct objfile *) NULL);
 552
 553   builtin_type_f_integer =
 554     init_type (TYPE_CODE_INT,
 555                gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 556                0, "integer", (struct objfile *) NULL);
 557
 558   builtin_type_f_logical =
 559     init_type (TYPE_CODE_BOOL,
 560                gdbarch_int_bit (current_gdbarch) / TARGET_CHAR_BIT,
 561                TYPE_FLAG_UNSIGNED, "logical*4", (struct objfile *) NULL);
 562
 563   builtin_type_f_real =
 564     init_type (TYPE_CODE_FLT,
 565                gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
 566                0,
 567                "real", (struct objfile *) NULL);
 568
 569   builtin_type_f_real_s8 =
 570     init_type (TYPE_CODE_FLT,
 571                gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 572                0,
 573                "real*8", (struct objfile *) NULL);
 574
 575   builtin_type_f_real_s16 =
 576     init_type (TYPE_CODE_FLT,
 577                gdbarch_long_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 578                0,
 579                "real*16", (struct objfile *) NULL);
 580
 581   builtin_type_f_complex_s8 =
 582     init_type (TYPE_CODE_COMPLEX,
 583                2 * gdbarch_float_bit (current_gdbarch) / TARGET_CHAR_BIT,
 584                0,
 585                "complex*8", (struct objfile *) NULL);
 586   TYPE_TARGET_TYPE (builtin_type_f_complex_s8) = builtin_type_f_real;
 587
 588   builtin_type_f_complex_s16 =
 589     init_type (TYPE_CODE_COMPLEX,
 590                2 * gdbarch_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 591                0,
 592                "complex*16", (struct objfile *) NULL);
 593   TYPE_TARGET_TYPE (builtin_type_f_complex_s16) = builtin_type_f_real_s8;
 594
 595   /* We have a new size == 4 double floats for the
 596      complex*32 data type */
 597
 598   builtin_type_f_complex_s32 =
 599     init_type (TYPE_CODE_COMPLEX,
 600                2 * gdbarch_long_double_bit (current_gdbarch) / TARGET_CHAR_BIT,
 601                0,
 602                "complex*32", (struct objfile *) NULL);
 603   TYPE_TARGET_TYPE (builtin_type_f_complex_s32) = builtin_type_f_real_s16;
 604 }
 605
 606 void
 607 _initialize_f_language (void)
 608 {
 609   build_fortran_types ();
 610
 611   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_character);
 612   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_logical);
 613   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_logical_s1);
 614   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_logical_s2);
 615   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_integer);
 616   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_integer_s2);
 617   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_real);
 618   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_real_s8);
 619   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_real_s16);
 620   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_complex_s8);
 621   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_complex_s16);
 622   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_complex_s32);
 623   DEPRECATED_REGISTER_GDBARCH_SWAP (builtin_type_f_void);
 624   deprecated_register_gdbarch_swap (NULL, 0, build_fortran_types);
 625
 626   add_language (&f_language_defn);
 627 }
 628
 629 #if 0
 630 static SAVED_BF_PTR
 631 allocate_saved_bf_node (void)
 632 {
 633   SAVED_BF_PTR new;
 634
 635   new = (SAVED_BF_PTR) xmalloc (sizeof (SAVED_BF));
 636   return (new);
 637 }
 638
 639 static SAVED_FUNCTION *
 640 allocate_saved_function_node (void)
 641 {
 642   SAVED_FUNCTION *new;
 643
 644   new = (SAVED_FUNCTION *) xmalloc (sizeof (SAVED_FUNCTION));
 645   return (new);
 646 }
 647
 648 static SAVED_F77_COMMON_PTR
 649 allocate_saved_f77_common_node (void)
 650 {
 651   SAVED_F77_COMMON_PTR new;
 652
 653   new = (SAVED_F77_COMMON_PTR) xmalloc (sizeof (SAVED_F77_COMMON));
 654   return (new);
 655 }
 656
 657 static COMMON_ENTRY_PTR
 658 allocate_common_entry_node (void)
 659 {
 660   COMMON_ENTRY_PTR new;
 661
 662   new = (COMMON_ENTRY_PTR) xmalloc (sizeof (COMMON_ENTRY));
 663   return (new);
 664 }
 665 #endif
 666
 667 SAVED_F77_COMMON_PTR head_common_list = NULL;   /* Ptr to 1st saved COMMON  */
 668 SAVED_F77_COMMON_PTR tail_common_list = NULL;   /* Ptr to last saved COMMON  */
 669 SAVED_F77_COMMON_PTR current_common = NULL;     /* Ptr to current COMMON */
 670
 671 #if 0
 672 static SAVED_BF_PTR saved_bf_list = NULL;       /* Ptr to (.bf,function)
 673                                                    list */
 674 static SAVED_BF_PTR saved_bf_list_end = NULL;   /* Ptr to above list's end */
 675 static SAVED_BF_PTR current_head_bf_list = NULL;        /* Current head of above list
 676                                                          */
 677
 678 static SAVED_BF_PTR tmp_bf_ptr; /* Generic temporary for use
 679                                    in macros */
 680
 681 /* The following function simply enters a given common block onto
 682    the global common block chain */
 683
 684 static void
 685 add_common_block (char *name, CORE_ADDR offset, int secnum, char *func_stab)
 686 {
 687   SAVED_F77_COMMON_PTR tmp;
 688   char *c, *local_copy_func_stab;
 689
 690   /* If the COMMON block we are trying to add has a blank
 691      name (i.e. "#BLNK_COM") then we set it to __BLANK
 692      because the darn "#" character makes GDB's input
 693      parser have fits. */
 694
 695
 696   if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0
 697       || strcmp (name, BLANK_COMMON_NAME_MF77) == 0)
 698     {
 699
 700       xfree (name);
 701       name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
 702       strcpy (name, BLANK_COMMON_NAME_LOCAL);
 703     }
 704
 705   tmp = allocate_saved_f77_common_node ();
 706
 707   local_copy_func_stab = xmalloc (strlen (func_stab) + 1);
 708   strcpy (local_copy_func_stab, func_stab);
 709
 710   tmp->name = xmalloc (strlen (name) + 1);
 711
 712   /* local_copy_func_stab is a stabstring, let us first extract the
 713      function name from the stab by NULLing out the ':' character. */
 714
 715
 716   c = NULL;
 717   c = strchr (local_copy_func_stab, ':');
 718
 719   if (c)
 720     *c = '\0';
 721   else
 722     error (_("Malformed function STAB found in add_common_block()"));
 723
 724
 725   tmp->owning_function = xmalloc (strlen (local_copy_func_stab) + 1);
 726
 727   strcpy (tmp->owning_function, local_copy_func_stab);
 728
 729   strcpy (tmp->name, name);
 730   tmp->offset = offset;
 731   tmp->next = NULL;
 732   tmp->entries = NULL;
 733   tmp->secnum = secnum;
 734
 735   current_common = tmp;
 736
 737   if (head_common_list == NULL)
 738     {
 739       head_common_list = tail_common_list = tmp;
 740     }
 741   else
 742     {
 743       tail_common_list->next = tmp;
 744       tail_common_list = tmp;
 745     }
 746 }
 747 #endif
 748
 749 /* The following function simply enters a given common entry onto
 750    the "current_common" block that has been saved away. */
 751
 752 #if 0
 753 static void
 754 add_common_entry (struct symbol *entry_sym_ptr)
 755 {
 756   COMMON_ENTRY_PTR tmp;
 757
 758
 759
 760   /* The order of this list is important, since
 761      we expect the entries to appear in decl.
 762      order when we later issue "info common" calls */
 763
 764   tmp = allocate_common_entry_node ();
 765
 766   tmp->next = NULL;
 767   tmp->symbol = entry_sym_ptr;
 768
 769   if (current_common == NULL)
 770     error (_("Attempt to add COMMON entry with no block open!"));
 771   else
 772     {
 773       if (current_common->entries == NULL)
 774         {
 775           current_common->entries = tmp;
 776           current_common->end_of_entries = tmp;
 777         }
 778       else
 779         {
 780           current_common->end_of_entries->next = tmp;
 781           current_common->end_of_entries = tmp;
 782         }
 783     }
 784 }
 785 #endif
 786
 787 /* This routine finds the first encountred COMMON block named "name" */
 788
 789 #if 0
 790 static SAVED_F77_COMMON_PTR
 791 find_first_common_named (char *name)
 792 {
 793
 794   SAVED_F77_COMMON_PTR tmp;
 795
 796   tmp = head_common_list;
 797
 798   while (tmp != NULL)
 799     {
 800       if (strcmp (tmp->name, name) == 0)
 801         return (tmp);
 802       else
 803         tmp = tmp->next;
 804     }
 805   return (NULL);
 806 }
 807 #endif
 808
 809 /* This routine finds the first encountred COMMON block named "name"
 810    that belongs to function funcname */
 811
 812 SAVED_F77_COMMON_PTR
 813 find_common_for_function (char *name, char *funcname)
 814 {
 815
 816   SAVED_F77_COMMON_PTR tmp;
 817
 818   tmp = head_common_list;
 819
 820   while (tmp != NULL)
 821     {
 822       if (DEPRECATED_STREQ (tmp->name, name)
 823           && DEPRECATED_STREQ (tmp->owning_function, funcname))
 824         return (tmp);
 825       else
 826         tmp = tmp->next;
 827     }
 828   return (NULL);
 829 }
 830
 831
 832 #if 0
 833
 834 /* The following function is called to patch up the offsets
 835    for the statics contained in the COMMON block named
 836    "name."  */
 837
 838 static void
 839 patch_common_entries (SAVED_F77_COMMON_PTR blk, CORE_ADDR offset, int secnum)
 840 {
 841   COMMON_ENTRY_PTR entry;
 842
 843   blk->offset = offset;         /* Keep this around for future use. */
 844
 845   entry = blk->entries;
 846
 847   while (entry != NULL)
 848     {
 849       SYMBOL_VALUE (entry->symbol) += offset;
 850       SYMBOL_SECTION (entry->symbol) = secnum;
 851
 852       entry = entry->next;
 853     }
 854   blk->secnum = secnum;
 855 }
 856
 857 /* Patch all commons named "name" that need patching.Since COMMON
 858    blocks occur with relative infrequency, we simply do a linear scan on
 859    the name.  Eventually, the best way to do this will be a
 860    hashed-lookup.  Secnum is the section number for the .bss section
 861    (which is where common data lives). */
 862
 863 static void
 864 patch_all_commons_by_name (char *name, CORE_ADDR offset, int secnum)
 865 {
 866
 867   SAVED_F77_COMMON_PTR tmp;
 868
 869   /* For blank common blocks, change the canonical reprsentation
 870      of a blank name */
 871
 872   if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0
 873       || strcmp (name, BLANK_COMMON_NAME_MF77) == 0)
 874     {
 875       xfree (name);
 876       name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
 877       strcpy (name, BLANK_COMMON_NAME_LOCAL);
 878     }
 879
 880   tmp = head_common_list;
 881
 882   while (tmp != NULL)
 883     {
 884       if (COMMON_NEEDS_PATCHING (tmp))
 885         if (strcmp (tmp->name, name) == 0)
 886           patch_common_entries (tmp, offset, secnum);
 887
 888       tmp = tmp->next;
 889     }
 890 }
 891 #endif
 892
 893 /* This macro adds the symbol-number for the start of the function
 894    (the symbol number of the .bf) referenced by symnum_fcn to a
 895    list.  This list, in reality should be a FIFO queue but since
 896    #line pragmas sometimes cause line ranges to get messed up
 897    we simply create a linear list.  This list can then be searched
 898    first by a queueing algorithm and upon failure fall back to
 899    a linear scan. */
 900
 901 #if 0
 902 #define ADD_BF_SYMNUM(bf_sym,fcn_sym) \
 903   \
 904   if (saved_bf_list == NULL) \
 905 { \
 906     tmp_bf_ptr = allocate_saved_bf_node(); \
 907       \
 908         tmp_bf_ptr->symnum_bf = (bf_sym); \
 909           tmp_bf_ptr->symnum_fcn = (fcn_sym);  \
 910             tmp_bf_ptr->next = NULL; \
 911               \
 912                 current_head_bf_list = saved_bf_list = tmp_bf_ptr; \
 913                   saved_bf_list_end = tmp_bf_ptr; \
 914                   } \
 915 else \
 916 {  \
 917      tmp_bf_ptr = allocate_saved_bf_node(); \
 918        \
 919          tmp_bf_ptr->symnum_bf = (bf_sym);  \
 920            tmp_bf_ptr->symnum_fcn = (fcn_sym);  \
 921              tmp_bf_ptr->next = NULL;  \
 922                \
 923                  saved_bf_list_end->next = tmp_bf_ptr;  \
 924                    saved_bf_list_end = tmp_bf_ptr; \
 925                    }
 926 #endif
 927
 928 /* This function frees the entire (.bf,function) list */
 929
 930 #if 0
 931 static void
 932 clear_bf_list (void)
 933 {
 934
 935   SAVED_BF_PTR tmp = saved_bf_list;
 936   SAVED_BF_PTR next = NULL;
 937
 938   while (tmp != NULL)
 939     {
 940       next = tmp->next;
 941       xfree (tmp);
 942       tmp = next;
 943     }
 944   saved_bf_list = NULL;
 945 }
 946 #endif
 947
 948 int global_remote_debug;
 949
 950 #if 0
 951
 952 static long
 953 get_bf_for_fcn (long the_function)
 954 {
 955   SAVED_BF_PTR tmp;
 956   int nprobes = 0;
 957
 958   /* First use a simple queuing algorithm (i.e. look and see if the
 959      item at the head of the queue is the one you want)  */
 960
 961   if (saved_bf_list == NULL)
 962     internal_error (__FILE__, __LINE__,
 963                     _("cannot get .bf node off empty list"));
 964
 965   if (current_head_bf_list != NULL)
 966     if (current_head_bf_list->symnum_fcn == the_function)
 967       {
 968         if (global_remote_debug)
 969           fprintf_unfiltered (gdb_stderr, "*");
 970
 971         tmp = current_head_bf_list;
 972         current_head_bf_list = current_head_bf_list->next;
 973         return (tmp->symnum_bf);
 974       }
 975
 976   /* If the above did not work (probably because #line directives were
 977      used in the sourcefile and they messed up our internal tables) we now do
 978      the ugly linear scan */
 979
 980   if (global_remote_debug)
 981     fprintf_unfiltered (gdb_stderr, "\ndefaulting to linear scan\n");
 982
 983   nprobes = 0;
 984   tmp = saved_bf_list;
 985   while (tmp != NULL)
 986     {
 987       nprobes++;
 988       if (tmp->symnum_fcn == the_function)
 989         {
 990           if (global_remote_debug)
 991             fprintf_unfiltered (gdb_stderr, "Found in %d probes\n", nprobes);
 992           current_head_bf_list = tmp->next;
 993           return (tmp->symnum_bf);
 994         }
 995       tmp = tmp->next;
 996     }
 997
 998   return (-1);
 999 }
1000
1001 static SAVED_FUNCTION_PTR saved_function_list = NULL;
1002 static SAVED_FUNCTION_PTR saved_function_list_end = NULL;
1003
1004 static void
1005 clear_function_list (void)
1006 {
1007   SAVED_FUNCTION_PTR tmp = saved_function_list;
1008   SAVED_FUNCTION_PTR next = NULL;
1009
1010   while (tmp != NULL)
1011     {
1012       next = tmp->next;
1013       xfree (tmp);
1014       tmp = next;
1015     }
1016
1017   saved_function_list = NULL;
1018 }
1019 #endif