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   range_check_on,
 478   type_check_on,
 479   case_sensitive_off,
 480   array_column_major,
 481   &exp_descriptor_standard,
 482   f_parse,                      /* parser */
 483   f_error,                      /* parser error function */
 484   null_post_parser,
 485   f_printchar,                  /* Print character constant */
 486   f_printstr,                   /* function to print string constant */
 487   f_emit_char,                  /* Function to print a single character */
 488   f_create_fundamental_type,    /* Create fundamental type in this language */
 489   f_print_type,                 /* Print a type using appropriate syntax */
 490   f_val_print,                  /* Print a value using appropriate syntax */
 491   c_value_print,                /* FIXME */
 492   NULL,                         /* Language specific skip_trampoline */
 493   value_of_this,                /* value_of_this */
 494   basic_lookup_symbol_nonlocal, /* lookup_symbol_nonlocal */
 495   basic_lookup_transparent_type,/* lookup_transparent_type */
 496   NULL,                         /* Language specific symbol demangler */
 497   NULL,                         /* Language specific class_name_from_physname */
 498   f_op_print_tab,               /* expression operators for printing */
 499   0,                            /* arrays are first-class (not c-style) */
 500   1,                            /* String lower bound */
 501   default_word_break_characters,
 502   f_language_arch_info,
 503   default_print_array_index,
 504   default_pass_by_reference,
 505   LANG_MAGIC
 506 };
 507
 508 static void *
 509 build_fortran_types (struct gdbarch *gdbarch)
 510 {
 511   struct builtin_f_type *builtin_f_type
 512     = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_f_type);
 513
 514   builtin_f_type->builtin_void =
 515     init_type (TYPE_CODE_VOID, 1,
 516                0,
 517                "VOID", (struct objfile *) NULL);
 518
 519   builtin_f_type->builtin_character =
 520     init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 521                0,
 522                "character", (struct objfile *) NULL);
 523
 524   builtin_f_type->builtin_logical_s1 =
 525     init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT,
 526                TYPE_FLAG_UNSIGNED,
 527                "logical*1", (struct objfile *) NULL);
 528
 529   builtin_f_type->builtin_integer_s2 =
 530     init_type (TYPE_CODE_INT,
 531                gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT,
 532                0, "integer*2", (struct objfile *) NULL);
 533
 534   builtin_f_type->builtin_logical_s2 =
 535     init_type (TYPE_CODE_BOOL,
 536                gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT,
 537                TYPE_FLAG_UNSIGNED, "logical*2", (struct objfile *) NULL);
 538
 539   builtin_f_type->builtin_integer =
 540     init_type (TYPE_CODE_INT,
 541                gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT,
 542                0, "integer", (struct objfile *) NULL);
 543
 544   builtin_f_type->builtin_logical =
 545     init_type (TYPE_CODE_BOOL,
 546                gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT,
 547                TYPE_FLAG_UNSIGNED, "logical*4", (struct objfile *) NULL);
 548
 549   builtin_f_type->builtin_real =
 550     init_type (TYPE_CODE_FLT,
 551                gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT,
 552                0,
 553                "real", (struct objfile *) NULL);
 554
 555   builtin_f_type->builtin_real_s8 =
 556     init_type (TYPE_CODE_FLT,
 557                gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT,
 558                0,
 559                "real*8", (struct objfile *) NULL);
 560
 561   builtin_f_type->builtin_real_s16 =
 562     init_type (TYPE_CODE_FLT,
 563                gdbarch_long_double_bit (gdbarch) / TARGET_CHAR_BIT,
 564                0,
 565                "real*16", (struct objfile *) NULL);
 566
 567   builtin_f_type->builtin_complex_s8 =
 568     init_type (TYPE_CODE_COMPLEX,
 569                2 * gdbarch_float_bit (gdbarch) / TARGET_CHAR_BIT,
 570                0,
 571                "complex*8", (struct objfile *) NULL);
 572   TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s8)
 573     = builtin_f_type->builtin_real;
 574
 575   builtin_f_type->builtin_complex_s16 =
 576     init_type (TYPE_CODE_COMPLEX,
 577                2 * gdbarch_double_bit (gdbarch) / TARGET_CHAR_BIT,
 578                0,
 579                "complex*16", (struct objfile *) NULL);
 580   TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s16)
 581     = builtin_f_type->builtin_real_s8;
 582
 583   /* We have a new size == 4 double floats for the
 584      complex*32 data type */
 585
 586   builtin_f_type->builtin_complex_s32 =
 587     init_type (TYPE_CODE_COMPLEX,
 588                2 * gdbarch_long_double_bit (gdbarch) / TARGET_CHAR_BIT,
 589                0,
 590                "complex*32", (struct objfile *) NULL);
 591   TYPE_TARGET_TYPE (builtin_f_type->builtin_complex_s32)
 592     = builtin_f_type->builtin_real_s16;
 593
 594   return builtin_f_type;
 595 }
 596
 597 static struct gdbarch_data *f_type_data;
 598
 599 const struct builtin_f_type *
 600 builtin_f_type (struct gdbarch *gdbarch)
 601 {
 602   return gdbarch_data (gdbarch, f_type_data);
 603 }
 604
 605 void
 606 _initialize_f_language (void)
 607 {
 608   f_type_data = gdbarch_data_register_post_init (build_fortran_types);
 609
 610   add_language (&f_language_defn);
 611 }
 612
 613 #if 0
 614 static SAVED_BF_PTR
 615 allocate_saved_bf_node (void)
 616 {
 617   SAVED_BF_PTR new;
 618
 619   new = (SAVED_BF_PTR) xmalloc (sizeof (SAVED_BF));
 620   return (new);
 621 }
 622
 623 static SAVED_FUNCTION *
 624 allocate_saved_function_node (void)
 625 {
 626   SAVED_FUNCTION *new;
 627
 628   new = (SAVED_FUNCTION *) xmalloc (sizeof (SAVED_FUNCTION));
 629   return (new);
 630 }
 631
 632 static SAVED_F77_COMMON_PTR
 633 allocate_saved_f77_common_node (void)
 634 {
 635   SAVED_F77_COMMON_PTR new;
 636
 637   new = (SAVED_F77_COMMON_PTR) xmalloc (sizeof (SAVED_F77_COMMON));
 638   return (new);
 639 }
 640
 641 static COMMON_ENTRY_PTR
 642 allocate_common_entry_node (void)
 643 {
 644   COMMON_ENTRY_PTR new;
 645
 646   new = (COMMON_ENTRY_PTR) xmalloc (sizeof (COMMON_ENTRY));
 647   return (new);
 648 }
 649 #endif
 650
 651 SAVED_F77_COMMON_PTR head_common_list = NULL;   /* Ptr to 1st saved COMMON  */
 652 SAVED_F77_COMMON_PTR tail_common_list = NULL;   /* Ptr to last saved COMMON  */
 653 SAVED_F77_COMMON_PTR current_common = NULL;     /* Ptr to current COMMON */
 654
 655 #if 0
 656 static SAVED_BF_PTR saved_bf_list = NULL;       /* Ptr to (.bf,function)
 657                                                    list */
 658 static SAVED_BF_PTR saved_bf_list_end = NULL;   /* Ptr to above list's end */
 659 static SAVED_BF_PTR current_head_bf_list = NULL;        /* Current head of above list
 660                                                          */
 661
 662 static SAVED_BF_PTR tmp_bf_ptr; /* Generic temporary for use
 663                                    in macros */
 664
 665 /* The following function simply enters a given common block onto
 666    the global common block chain */
 667
 668 static void
 669 add_common_block (char *name, CORE_ADDR offset, int secnum, char *func_stab)
 670 {
 671   SAVED_F77_COMMON_PTR tmp;
 672   char *c, *local_copy_func_stab;
 673
 674   /* If the COMMON block we are trying to add has a blank
 675      name (i.e. "#BLNK_COM") then we set it to __BLANK
 676      because the darn "#" character makes GDB's input
 677      parser have fits. */
 678
 679
 680   if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0
 681       || strcmp (name, BLANK_COMMON_NAME_MF77) == 0)
 682     {
 683
 684       xfree (name);
 685       name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
 686       strcpy (name, BLANK_COMMON_NAME_LOCAL);
 687     }
 688
 689   tmp = allocate_saved_f77_common_node ();
 690
 691   local_copy_func_stab = xmalloc (strlen (func_stab) + 1);
 692   strcpy (local_copy_func_stab, func_stab);
 693
 694   tmp->name = xmalloc (strlen (name) + 1);
 695
 696   /* local_copy_func_stab is a stabstring, let us first extract the
 697      function name from the stab by NULLing out the ':' character. */
 698
 699
 700   c = NULL;
 701   c = strchr (local_copy_func_stab, ':');
 702
 703   if (c)
 704     *c = '\0';
 705   else
 706     error (_("Malformed function STAB found in add_common_block()"));
 707
 708
 709   tmp->owning_function = xmalloc (strlen (local_copy_func_stab) + 1);
 710
 711   strcpy (tmp->owning_function, local_copy_func_stab);
 712
 713   strcpy (tmp->name, name);
 714   tmp->offset = offset;
 715   tmp->next = NULL;
 716   tmp->entries = NULL;
 717   tmp->secnum = secnum;
 718
 719   current_common = tmp;
 720
 721   if (head_common_list == NULL)
 722     {
 723       head_common_list = tail_common_list = tmp;
 724     }
 725   else
 726     {
 727       tail_common_list->next = tmp;
 728       tail_common_list = tmp;
 729     }
 730 }
 731 #endif
 732
 733 /* The following function simply enters a given common entry onto
 734    the "current_common" block that has been saved away. */
 735
 736 #if 0
 737 static void
 738 add_common_entry (struct symbol *entry_sym_ptr)
 739 {
 740   COMMON_ENTRY_PTR tmp;
 741
 742
 743
 744   /* The order of this list is important, since
 745      we expect the entries to appear in decl.
 746      order when we later issue "info common" calls */
 747
 748   tmp = allocate_common_entry_node ();
 749
 750   tmp->next = NULL;
 751   tmp->symbol = entry_sym_ptr;
 752
 753   if (current_common == NULL)
 754     error (_("Attempt to add COMMON entry with no block open!"));
 755   else
 756     {
 757       if (current_common->entries == NULL)
 758         {
 759           current_common->entries = tmp;
 760           current_common->end_of_entries = tmp;
 761         }
 762       else
 763         {
 764           current_common->end_of_entries->next = tmp;
 765           current_common->end_of_entries = tmp;
 766         }
 767     }
 768 }
 769 #endif
 770
 771 /* This routine finds the first encountred COMMON block named "name" */
 772
 773 #if 0
 774 static SAVED_F77_COMMON_PTR
 775 find_first_common_named (char *name)
 776 {
 777
 778   SAVED_F77_COMMON_PTR tmp;
 779
 780   tmp = head_common_list;
 781
 782   while (tmp != NULL)
 783     {
 784       if (strcmp (tmp->name, name) == 0)
 785         return (tmp);
 786       else
 787         tmp = tmp->next;
 788     }
 789   return (NULL);
 790 }
 791 #endif
 792
 793 /* This routine finds the first encountred COMMON block named "name"
 794    that belongs to function funcname */
 795
 796 SAVED_F77_COMMON_PTR
 797 find_common_for_function (char *name, char *funcname)
 798 {
 799
 800   SAVED_F77_COMMON_PTR tmp;
 801
 802   tmp = head_common_list;
 803
 804   while (tmp != NULL)
 805     {
 806       if (DEPRECATED_STREQ (tmp->name, name)
 807           && DEPRECATED_STREQ (tmp->owning_function, funcname))
 808         return (tmp);
 809       else
 810         tmp = tmp->next;
 811     }
 812   return (NULL);
 813 }
 814
 815
 816 #if 0
 817
 818 /* The following function is called to patch up the offsets
 819    for the statics contained in the COMMON block named
 820    "name."  */
 821
 822 static void
 823 patch_common_entries (SAVED_F77_COMMON_PTR blk, CORE_ADDR offset, int secnum)
 824 {
 825   COMMON_ENTRY_PTR entry;
 826
 827   blk->offset = offset;         /* Keep this around for future use. */
 828
 829   entry = blk->entries;
 830
 831   while (entry != NULL)
 832     {
 833       SYMBOL_VALUE (entry->symbol) += offset;
 834       SYMBOL_SECTION (entry->symbol) = secnum;
 835
 836       entry = entry->next;
 837     }
 838   blk->secnum = secnum;
 839 }
 840
 841 /* Patch all commons named "name" that need patching.Since COMMON
 842    blocks occur with relative infrequency, we simply do a linear scan on
 843    the name.  Eventually, the best way to do this will be a
 844    hashed-lookup.  Secnum is the section number for the .bss section
 845    (which is where common data lives). */
 846
 847 static void
 848 patch_all_commons_by_name (char *name, CORE_ADDR offset, int secnum)
 849 {
 850
 851   SAVED_F77_COMMON_PTR tmp;
 852
 853   /* For blank common blocks, change the canonical reprsentation
 854      of a blank name */
 855
 856   if (strcmp (name, BLANK_COMMON_NAME_ORIGINAL) == 0
 857       || strcmp (name, BLANK_COMMON_NAME_MF77) == 0)
 858     {
 859       xfree (name);
 860       name = alloca (strlen (BLANK_COMMON_NAME_LOCAL) + 1);
 861       strcpy (name, BLANK_COMMON_NAME_LOCAL);
 862     }
 863
 864   tmp = head_common_list;
 865
 866   while (tmp != NULL)
 867     {
 868       if (COMMON_NEEDS_PATCHING (tmp))
 869         if (strcmp (tmp->name, name) == 0)
 870           patch_common_entries (tmp, offset, secnum);
 871
 872       tmp = tmp->next;
 873     }
 874 }
 875 #endif
 876
 877 /* This macro adds the symbol-number for the start of the function
 878    (the symbol number of the .bf) referenced by symnum_fcn to a
 879    list.  This list, in reality should be a FIFO queue but since
 880    #line pragmas sometimes cause line ranges to get messed up
 881    we simply create a linear list.  This list can then be searched
 882    first by a queueing algorithm and upon failure fall back to
 883    a linear scan. */
 884
 885 #if 0
 886 #define ADD_BF_SYMNUM(bf_sym,fcn_sym) \
 887   \
 888   if (saved_bf_list == NULL) \
 889 { \
 890     tmp_bf_ptr = allocate_saved_bf_node(); \
 891       \
 892         tmp_bf_ptr->symnum_bf = (bf_sym); \
 893           tmp_bf_ptr->symnum_fcn = (fcn_sym);  \
 894             tmp_bf_ptr->next = NULL; \
 895               \
 896                 current_head_bf_list = saved_bf_list = tmp_bf_ptr; \
 897                   saved_bf_list_end = tmp_bf_ptr; \
 898                   } \
 899 else \
 900 {  \
 901      tmp_bf_ptr = allocate_saved_bf_node(); \
 902        \
 903          tmp_bf_ptr->symnum_bf = (bf_sym);  \
 904            tmp_bf_ptr->symnum_fcn = (fcn_sym);  \
 905              tmp_bf_ptr->next = NULL;  \
 906                \
 907                  saved_bf_list_end->next = tmp_bf_ptr;  \
 908                    saved_bf_list_end = tmp_bf_ptr; \
 909                    }
 910 #endif
 911
 912 /* This function frees the entire (.bf,function) list */
 913
 914 #if 0
 915 static void
 916 clear_bf_list (void)
 917 {
 918
 919   SAVED_BF_PTR tmp = saved_bf_list;
 920   SAVED_BF_PTR next = NULL;
 921
 922   while (tmp != NULL)
 923     {
 924       next = tmp->next;
 925       xfree (tmp);
 926       tmp = next;
 927     }
 928   saved_bf_list = NULL;
 929 }
 930 #endif
 931
 932 int global_remote_debug;
 933
 934 #if 0
 935
 936 static long
 937 get_bf_for_fcn (long the_function)
 938 {
 939   SAVED_BF_PTR tmp;
 940   int nprobes = 0;
 941
 942   /* First use a simple queuing algorithm (i.e. look and see if the
 943      item at the head of the queue is the one you want)  */
 944
 945   if (saved_bf_list == NULL)
 946     internal_error (__FILE__, __LINE__,
 947                     _("cannot get .bf node off empty list"));
 948
 949   if (current_head_bf_list != NULL)
 950     if (current_head_bf_list->symnum_fcn == the_function)
 951       {
 952         if (global_remote_debug)
 953           fprintf_unfiltered (gdb_stderr, "*");
 954
 955         tmp = current_head_bf_list;
 956         current_head_bf_list = current_head_bf_list->next;
 957         return (tmp->symnum_bf);
 958       }
 959
 960   /* If the above did not work (probably because #line directives were
 961      used in the sourcefile and they messed up our internal tables) we now do
 962      the ugly linear scan */
 963
 964   if (global_remote_debug)
 965     fprintf_unfiltered (gdb_stderr, "\ndefaulting to linear scan\n");
 966
 967   nprobes = 0;
 968   tmp = saved_bf_list;
 969   while (tmp != NULL)
 970     {
 971       nprobes++;
 972       if (tmp->symnum_fcn == the_function)
 973         {
 974           if (global_remote_debug)
 975             fprintf_unfiltered (gdb_stderr, "Found in %d probes\n", nprobes);
 976           current_head_bf_list = tmp->next;
 977           return (tmp->symnum_bf);
 978         }
 979       tmp = tmp->next;
 980     }
 981
 982   return (-1);
 983 }
 984
 985 static SAVED_FUNCTION_PTR saved_function_list = NULL;
 986 static SAVED_FUNCTION_PTR saved_function_list_end = NULL;
 987
 988 static void
 989 clear_function_list (void)
 990 {
 991   SAVED_FUNCTION_PTR tmp = saved_function_list;
 992   SAVED_FUNCTION_PTR next = NULL;
 993
 994   while (tmp != NULL)
 995     {
 996       next = tmp->next;
 997       xfree (tmp);
 998       tmp = next;
 999     }
1000
1001   saved_function_list = NULL;
1002 }
1003 #endif