gdb/defs.h

   1 /* Basic, host-specific, and target-specific definitions for GDB.
   2    Copyright (C) 1986, 1989, 1991 Free Software Foundation, Inc.
   3
   4 This file is part of GDB.
   5
   6 This program is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2 of the License, or
   9 (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20 #if !defined (DEFS_H)
  21 #define DEFS_H 1
  22
  23 #include <stdio.h>
  24
  25 /* First include ansidecl.h so we can use the various macro definitions
  26    in all subsequent file inclusions.  FIXME:  This inclusion can now
  27    be removed from all files that include defs.h */
  28
  29 #include "ansidecl.h"
  30
  31 /* We could use the EXFUN macro in ansidecl.h to handle prototypes, but
  32    the name is misleading the the result is ugly.  So just define a simple
  33    macro to handle the parameter lists. */
  34
  35 #ifdef __STDC__
  36 #define PARAMS(paramlist) paramlist
  37 #else
  38 #define PARAMS(paramlist) ()
  39 #endif
  40
  41 /* An address in the program being debugged.  Host byte order.  */
  42 typedef unsigned int CORE_ADDR;
  43
  44 #define min(a, b) ((a) < (b) ? (a) : (b))
  45 #define max(a, b) ((a) > (b) ? (a) : (b))
  46
  47 /* The character C++ uses to build identifiers that must be unique from
  48    the program's identifiers (such as $this and $$vptr).  */
  49 #define CPLUS_MARKER '$'        /* May be overridden to '.' for SysV */
  50
  51 #include <errno.h>              /* System call error return status */
  52
  53 extern int quit_flag;
  54 extern int immediate_quit;
  55
  56 extern void
  57 quit PARAMS ((void));
  58
  59 #define QUIT { if (quit_flag) quit (); }
  60
  61 /* Notes on classes: class_alias is for alias commands which are not
  62    abbreviations of the original command.  */
  63
  64 enum command_class
  65 {
  66   /* Special args to help_list */
  67   all_classes = -2, all_commands = -1,
  68   /* Classes of commands */
  69   no_class = -1, class_run = 0, class_vars, class_stack,
  70   class_files, class_support, class_info, class_breakpoint,
  71   class_alias, class_obscure, class_user
  72 };
  73
  74 /* the cleanup list records things that have to be undone
  75    if an error happens (descriptors to be closed, memory to be freed, etc.)
  76    Each link in the chain records a function to call and an
  77    argument to give it.
  78
  79    Use make_cleanup to add an element to the cleanup chain.
  80    Use do_cleanups to do all cleanup actions back to a given
  81    point in the chain.  Use discard_cleanups to remove cleanups
  82    from the chain back to a given point, not doing them.  */
  83
  84 struct cleanup
  85 {
  86   struct cleanup *next;
  87   void (*function) PARAMS ((PTR));
  88   PTR arg;
  89 };
  90
  91 /* From blockframe.c */
  92
  93 extern int
  94 inside_entry_func PARAMS ((CORE_ADDR));
  95
  96 extern int
  97 inside_entry_file PARAMS ((CORE_ADDR addr));
  98
  99 extern int
 100 inside_main_func PARAMS ((CORE_ADDR pc));
 101
 102 /* From cplus-dem.c */
 103
 104 extern char *
 105 cplus_demangle PARAMS ((const char *, int));
 106
 107 extern char *
 108 cplus_mangle_opname PARAMS ((char *, int));
 109
 110 /* From libmmalloc.a (memory mapped malloc library) */
 111
 112 extern PTR
 113 mmalloc_attach PARAMS ((int, PTR));
 114
 115 extern PTR
 116 mmalloc_detach PARAMS ((PTR));
 117
 118 extern PTR
 119 mmalloc PARAMS ((PTR, long));
 120
 121 extern PTR
 122 mrealloc PARAMS ((PTR, PTR, long));
 123
 124 extern void
 125 mfree PARAMS ((PTR, PTR));
 126
 127 extern int
 128 mmalloc_setkey PARAMS ((PTR, int, PTR));
 129
 130 extern PTR
 131 mmalloc_getkey PARAMS ((PTR, int));
 132
 133 /* From utils.c */
 134
 135 extern char *
 136 demangle_and_match PARAMS ((const char *, const char *, int));
 137
 138 extern int
 139 strcmp_iw PARAMS ((const char *, const char *));
 140
 141 extern char *
 142 safe_strerror PARAMS ((int));
 143
 144 extern char *
 145 safe_strsignal PARAMS ((int));
 146
 147 extern void
 148 init_malloc PARAMS ((PTR));
 149
 150 extern void
 151 request_quit PARAMS ((int));
 152
 153 extern void
 154 do_cleanups PARAMS ((struct cleanup *));
 155
 156 extern void
 157 discard_cleanups PARAMS ((struct cleanup *));
 158
 159 /* The bare make_cleanup function is one of those rare beasts that
 160    takes almost any type of function as the first arg and anything that
 161    will fit in a "void *" as the second arg.
 162
 163    Should be, once all calls and called-functions are cleaned up:
 164 extern struct cleanup *
 165 make_cleanup PARAMS ((void (*function) (PTR), PTR));
 166
 167    Until then, lint and/or various type-checking compiler options will
 168    complain about make_cleanup calls.  It'd be wrong to just cast things,
 169    since the type actually passed when the function is called would be
 170    wrong.  */
 171
 172 extern struct cleanup *
 173 make_cleanup ();
 174
 175 extern struct cleanup *
 176 save_cleanups PARAMS ((void));
 177
 178 extern void
 179 restore_cleanups PARAMS ((struct cleanup *));
 180
 181 extern void
 182 free_current_contents PARAMS ((char **));
 183
 184 extern void
 185 null_cleanup PARAMS ((char **));
 186
 187 extern int
 188 myread PARAMS ((int, char *, int));
 189
 190 extern int
 191 query ();
 192
 193 extern void
 194 wrap_here PARAMS ((char *));
 195
 196 extern void
 197 reinitialize_more_filter PARAMS ((void));
 198
 199 extern int
 200 print_insn PARAMS ((CORE_ADDR, FILE *));
 201
 202 extern void
 203 fputs_filtered PARAMS ((const char *, FILE *));
 204
 205 extern void
 206 puts_filtered PARAMS ((char *));
 207
 208 extern void
 209 fprintf_filtered ();
 210
 211 extern void
 212 printf_filtered ();
 213
 214 extern void
 215 print_spaces PARAMS ((int, FILE *));
 216
 217 extern void
 218 print_spaces_filtered PARAMS ((int, FILE *));
 219
 220 extern char *
 221 n_spaces PARAMS ((int));
 222
 223 extern void
 224 printchar PARAMS ((int, FILE *, int));
 225
 226 extern void
 227 fprint_symbol PARAMS ((FILE *, char *));
 228
 229 extern void
 230 fputs_demangled PARAMS ((char *, FILE *, int));
 231
 232 extern void
 233 perror_with_name PARAMS ((char *));
 234
 235 extern void
 236 print_sys_errmsg PARAMS ((char *, int));
 237
 238 /* From regex.c */
 239
 240 extern char *
 241 re_comp PARAMS ((char *));
 242
 243 /* From symfile.c */
 244
 245 extern void
 246 symbol_file_command PARAMS ((char *, int));
 247
 248 /* From main.c */
 249
 250 extern char *
 251 skip_quoted PARAMS ((char *));
 252
 253 extern char *
 254 gdb_readline PARAMS ((char *));
 255
 256 extern char *
 257 command_line_input PARAMS ((char *, int));
 258
 259 extern void
 260 print_prompt PARAMS ((void));
 261
 262 extern int
 263 batch_mode PARAMS ((void));
 264
 265 extern int
 266 input_from_terminal_p PARAMS ((void));
 267
 268 extern int
 269 catch_errors PARAMS ((int (*) (char *), char *, char *));
 270
 271 /* From printcmd.c */
 272
 273 extern void
 274 set_next_address PARAMS ((CORE_ADDR));
 275
 276 extern void
 277 print_address_symbolic PARAMS ((CORE_ADDR, FILE *, int, char *));
 278
 279 extern void
 280 print_address PARAMS ((CORE_ADDR, FILE *));
 281
 282 /* From source.c */
 283
 284 extern int
 285 openp PARAMS ((char *, int, char *, int, int, char **));
 286
 287 extern void
 288 mod_path PARAMS ((char *, char **));
 289
 290 extern void
 291 directory_command PARAMS ((char *, int));
 292
 293 extern void
 294 init_source_path PARAMS ((void));
 295
 296 /* From findvar.c */
 297
 298 extern int
 299 read_relative_register_raw_bytes PARAMS ((int, char *));
 300
 301 /* From readline (but not in any readline .h files).  */
 302
 303 extern char *
 304 tilde_expand PARAMS ((char *));
 305
 306 /* Structure for saved commands lines
 307    (for breakpoints, defined commands, etc).  */
 308
 309 struct command_line
 310 {
 311   struct command_line *next;
 312   char *line;
 313 };
 314
 315 extern struct command_line *
 316 read_command_lines PARAMS ((void));
 317
 318 extern void
 319 free_command_lines PARAMS ((struct command_line **));
 320
 321 /* String containing the current directory (what getwd would return).  */
 322
 323 extern char *current_directory;
 324
 325 /* Default radixes for input and output.  Only some values supported.  */
 326 extern unsigned input_radix;
 327 extern unsigned output_radix;
 328
 329 /* Baud rate specified for communication with serial target systems.  */
 330 extern char *baud_rate;
 331
 332 /* Languages represented in the symbol table and elsewhere. */
 333
 334 enum language
 335 {
 336    language_unknown,            /* Language not known */
 337    language_auto,               /* Placeholder for automatic setting */
 338    language_c,                  /* C */
 339    language_cplus,              /* C++ */
 340    language_m2                  /* Modula-2 */
 341 };
 342
 343 /* Return a format string for printf that will print a number in the local
 344    (language-specific) hexadecimal format.  Result is static and is
 345    overwritten by the next call.  local_hex_format_custom takes printf
 346    options like "08" or "l" (to produce e.g. %08x or %lx).  */
 347
 348 #define local_hex_format() (current_language->la_hex_format)
 349
 350 extern char *
 351 local_hex_format_custom PARAMS ((char *));      /* language.c */
 352
 353 /* Return a string that contains a number formatted in the local
 354    (language-specific) hexadecimal format.  Result is static and is
 355    overwritten by the next call.  local_hex_string_custom takes printf
 356    options like "08" or "l".  */
 357
 358 extern char *
 359 local_hex_string PARAMS ((int));                /* language.c */
 360
 361 extern char *
 362 local_hex_string_custom PARAMS ((int, char *)); /* language.c */
 363
 364 \f
 365 /* Host machine definition.  This will be a symlink to one of the
 366    xm-*.h files, built by the `configure' script.  */
 367
 368 #include "xm.h"
 369
 370 /* If the xm.h file did not define the mode string used to open the
 371    files, assume that binary files are opened the same way as text
 372    files */
 373 #ifndef FOPEN_RB
 374 #include "fopen-same.h"
 375 #endif
 376
 377 /*
 378  * Allow things in gdb to be declared "const".  If compiling ANSI, it
 379  * just works.  If compiling with gcc but non-ansi, redefine to __const__.
 380  * If non-ansi, non-gcc, then eliminate "const" entirely, making those
 381  * objects be read-write rather than read-only.
 382  */
 383
 384 #ifndef const
 385 #ifndef __STDC__
 386 # ifdef __GNUC__
 387 #  define const __const__
 388 # else
 389 #  define const /*nothing*/
 390 # endif /* GNUC */
 391 #endif /* STDC */
 392 #endif /* const */
 393
 394 #ifndef volatile
 395 #ifndef __STDC__
 396 # ifdef __GNUC__
 397 #  define volatile __volatile__
 398 # else
 399 #  define volatile /*nothing*/
 400 # endif /* GNUC */
 401 #endif /* STDC */
 402 #endif /* volatile */
 403
 404 /* Some compilers (many AT&T SVR4 compilers for instance), do not accept
 405    declarations of functions that never return (exit for instance) as
 406    "volatile void".  For such compilers "NORETURN" can be defined away
 407    to keep them happy */
 408
 409 #ifndef NORETURN
 410 # define NORETURN volatile
 411 #endif
 412
 413 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).  */
 414
 415 #if !defined (UINT_MAX)
 416 #define UINT_MAX 0xffffffff
 417 #endif
 418
 419 #if !defined (LONG_MAX)
 420 #define LONG_MAX 0x7fffffff
 421 #endif
 422
 423 #if !defined (INT_MAX)
 424 #define INT_MAX 0x7fffffff
 425 #endif
 426
 427 #if !defined (INT_MIN)
 428 /* Two's complement, 32 bit.  */
 429 #define INT_MIN -0x80000000
 430 #endif
 431
 432 /* Number of bits in a char or unsigned char for the target machine.
 433    Just like CHAR_BIT in <limits.h> but describes the target machine.  */
 434 #if !defined (TARGET_CHAR_BIT)
 435 #define TARGET_CHAR_BIT 8
 436 #endif
 437
 438 /* Number of bits in a short or unsigned short for the target machine. */
 439 #if !defined (TARGET_SHORT_BIT)
 440 #define TARGET_SHORT_BIT (sizeof (short) * TARGET_CHAR_BIT)
 441 #endif
 442
 443 /* Number of bits in an int or unsigned int for the target machine. */
 444 #if !defined (TARGET_INT_BIT)
 445 #define TARGET_INT_BIT (sizeof (int) * TARGET_CHAR_BIT)
 446 #endif
 447
 448 /* Number of bits in a long or unsigned long for the target machine. */
 449 #if !defined (TARGET_LONG_BIT)
 450 #define TARGET_LONG_BIT (sizeof (long) * TARGET_CHAR_BIT)
 451 #endif
 452
 453 /* Number of bits in a long long or unsigned long long for the target machine. */
 454 #if !defined (TARGET_LONG_LONG_BIT)
 455 #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
 456 #endif
 457
 458 /* Number of bits in a float for the target machine. */
 459 #if !defined (TARGET_FLOAT_BIT)
 460 #define TARGET_FLOAT_BIT (sizeof (float) * TARGET_CHAR_BIT)
 461 #endif
 462
 463 /* Number of bits in a double for the target machine. */
 464 #if !defined (TARGET_DOUBLE_BIT)
 465 #define TARGET_DOUBLE_BIT (sizeof (double) * TARGET_CHAR_BIT)
 466 #endif
 467
 468 /* Number of bits in a long double for the target machine. */
 469 #if !defined (TARGET_LONG_DOUBLE_BIT)
 470 #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
 471 #endif
 472
 473 /* Number of bits in a "complex" for the target machine. */
 474 #if !defined (TARGET_COMPLEX_BIT)
 475 #define TARGET_COMPLEX_BIT (2 * TARGET_FLOAT_BIT)
 476 #endif
 477
 478 /* Number of bits in a "double complex" for the target machine. */
 479 #if !defined (TARGET_DOUBLE_COMPLEX_BIT)
 480 #define TARGET_DOUBLE_COMPLEX_BIT (2 * TARGET_DOUBLE_BIT)
 481 #endif
 482
 483 /* Number of bits in a pointer for the target machine */
 484 #if !defined (TARGET_PTR_BIT)
 485 #define TARGET_PTR_BIT TARGET_INT_BIT
 486 #endif
 487
 488 /* Convert a LONGEST to an int.  This is used in contexts (e.g. number
 489    of arguments to a function, number in a value history, register
 490    number, etc.) where the value must not be larger than can fit
 491    in an int.  */
 492 #if !defined (longest_to_int)
 493 #if defined (LONG_LONG)
 494 #define longest_to_int(x) (((x) > INT_MAX || (x) < INT_MIN) \
 495                            ? error ("Value out of range.") : (int) (x))
 496 #else /* No LONG_LONG.  */
 497 /* Assume sizeof (int) == sizeof (long).  */
 498 #define longest_to_int(x) ((int) (x))
 499 #endif /* No LONG_LONG.  */
 500 #endif /* No longest_to_int.  */
 501
 502 /* This should not be a typedef, because "unsigned LONGEST" needs
 503    to work. LONG_LONG is defined if the host has "long long".  */
 504
 505 #ifndef LONGEST
 506 # ifdef LONG_LONG
 507 #  define LONGEST long long
 508 # else
 509 #  define LONGEST long
 510 # endif
 511 #endif
 512
 513 /* Assorted functions we can declare, now that const and volatile are
 514    defined.  */
 515
 516 extern char *
 517 savestring PARAMS ((const char *, int));
 518
 519 extern char *
 520 msavestring PARAMS ((void *, const char *, int));
 521
 522 extern char *
 523 strsave PARAMS ((const char *));
 524
 525 extern char *
 526 mstrsave PARAMS ((void *, const char *));
 527
 528 extern char *
 529 concat PARAMS ((char *, ...));
 530
 531 extern PTR
 532 xmalloc PARAMS ((long));
 533
 534 extern PTR
 535 xrealloc PARAMS ((PTR, long));
 536
 537 extern PTR
 538 xmmalloc PARAMS ((PTR, long));
 539
 540 extern PTR
 541 xmrealloc PARAMS ((PTR, PTR, long));
 542
 543 extern PTR
 544 mmalloc PARAMS ((PTR, long));
 545
 546 extern PTR
 547 mrealloc PARAMS ((PTR, PTR, long));
 548
 549 extern void
 550 mfree PARAMS ((PTR, PTR));
 551
 552 extern int
 553 mmcheck PARAMS ((PTR, void (*) (void)));
 554
 555 extern int
 556 mmtrace PARAMS ((void));
 557
 558 extern int
 559 parse_escape PARAMS ((char **));
 560
 561 extern char *reg_names[];
 562
 563 extern NORETURN void                    /* Does not return to the caller.  */
 564 error ();
 565
 566 extern NORETURN void                    /* Does not return to the caller.  */
 567 fatal ();
 568
 569 extern NORETURN void                    /* Not specified as volatile in ... */
 570 exit PARAMS ((int));                    /* 4.10.4.3 */
 571
 572 extern NORETURN void                    /* Does not return to the caller.  */
 573 nomem PARAMS ((long));
 574
 575 extern NORETURN void                    /* Does not return to the caller.  */
 576 return_to_top_level PARAMS ((void));
 577
 578 extern void
 579 warning_setup PARAMS ((void));
 580
 581 extern void
 582 warning ();
 583
 584 /* Global functions from other, non-gdb GNU thingies (libiberty for
 585    instance) */
 586
 587 extern char *
 588 basename PARAMS ((char *));
 589
 590 extern char *
 591 getenv PARAMS ((CONST char *));
 592
 593 extern char **
 594 buildargv PARAMS ((char *));
 595
 596 extern void
 597 freeargv PARAMS ((char **));
 598
 599 extern char *
 600 strerrno PARAMS ((int));
 601
 602 extern char *
 603 strsigno PARAMS ((int));
 604
 605 extern int
 606 errno_max PARAMS ((void));
 607
 608 extern int
 609 signo_max PARAMS ((void));
 610
 611 extern int
 612 strtoerrno PARAMS ((char *));
 613
 614 extern int
 615 strtosigno PARAMS ((char *));
 616
 617 extern char *
 618 strsignal PARAMS ((int));
 619
 620 /* From other system libraries */
 621
 622 #ifndef PSIGNAL_IN_SIGNAL_H
 623 extern void
 624 psignal PARAMS ((unsigned, char *));
 625 #endif
 626
 627 /* For now, we can't include <stdlib.h> because it conflicts with
 628    "../include/getopt.h".  (FIXME)
 629
 630    However, if a function is defined in the ANSI C standard and a prototype
 631    for that function is defined and visible in any header file in an ANSI
 632    conforming environment, then that prototype must match the definition in
 633    the ANSI standard.  So we can just duplicate them here without conflict,
 634    since they must be the same in all conforming ANSI environments.  If
 635    these cause problems, then the environment is not ANSI conformant. */
 636
 637 #ifdef __STDC__
 638 #include <stddef.h>
 639 #endif
 640
 641 extern int
 642 fclose PARAMS ((FILE *stream));                         /* 4.9.5.1 */
 643
 644 extern void
 645 perror PARAMS ((const char *));                         /* 4.9.10.4 */
 646
 647 extern double
 648 atof PARAMS ((const char *nptr));                       /* 4.10.1.1 */
 649
 650 #ifndef MALLOC_INCOMPATIBLE
 651
 652 extern PTR
 653 malloc PARAMS ((size_t size));                          /* 4.10.3.3 */
 654
 655 extern PTR
 656 realloc PARAMS ((void *ptr, size_t size));              /* 4.10.3.4 */
 657
 658 extern void
 659 free PARAMS ((void *));                                 /* 4.10.3.2 */
 660
 661 #endif  /* MALLOC_INCOMPATIBLE */
 662
 663 extern void
 664 qsort PARAMS ((void *base, size_t nmemb,                /* 4.10.5.2 */
 665                size_t size,
 666                int (*comp)(const void *, const void *)));
 667
 668 extern char *
 669 strchr PARAMS ((const char *, int));                    /* 4.11.5.2 */
 670
 671 extern char *
 672 strrchr PARAMS ((const char *, int));                   /* 4.11.5.5 */
 673
 674 extern char *
 675 strstr PARAMS ((const char *, const char *));           /* 4.11.5.7 */
 676
 677 extern char *
 678 strtok PARAMS ((char *, const char *));                 /* 4.11.5.8 */
 679
 680 extern char *
 681 strerror PARAMS ((int));                                /* 4.11.6.2 */
 682
 683 /* Various possibilities for alloca.  */
 684 #ifndef alloca
 685 # ifdef __GNUC__
 686 #  define alloca __builtin_alloca
 687 # else
 688 #  ifdef sparc
 689 #   include <alloca.h>
 690 #  endif
 691    extern char *alloca ();
 692 # endif
 693 #endif
 694
 695 /* TARGET_BYTE_ORDER and HOST_BYTE_ORDER should be defined to one of these.  */
 696
 697 #if !defined (BIG_ENDIAN)
 698 #define BIG_ENDIAN 4321
 699 #endif
 700
 701 #if !defined (LITTLE_ENDIAN)
 702 #define LITTLE_ENDIAN 1234
 703 #endif
 704
 705 /* Target-system-dependent parameters for GDB.
 706
 707    The standard thing is to include defs.h.  However, files that are
 708    specific to a particular target can define TM_FILE_OVERRIDE before
 709    including defs.h, then can include any particular tm-file they desire.  */
 710
 711 /* Target machine definition.  This will be a symlink to one of the
 712    tm-*.h files, built by the `configure' script.  */
 713
 714 #ifndef TM_FILE_OVERRIDE
 715 #include "tm.h"
 716 #endif
 717
 718 /* The bit byte-order has to do just with numbering of bits in
 719    debugging symbols and such.  Conceptually, it's quite separate
 720    from byte/word byte order.  */
 721
 722 #if !defined (BITS_BIG_ENDIAN)
 723 #if TARGET_BYTE_ORDER == BIG_ENDIAN
 724 #define BITS_BIG_ENDIAN 1
 725 #endif /* Big endian.  */
 726
 727 #if TARGET_BYTE_ORDER == LITTLE_ENDIAN
 728 #define BITS_BIG_ENDIAN 0
 729 #endif /* Little endian.  */
 730 #endif /* BITS_BIG_ENDIAN not defined.  */
 731
 732 /* Swap LEN bytes at BUFFER between target and host byte-order.  */
 733 #if TARGET_BYTE_ORDER == HOST_BYTE_ORDER
 734 #define SWAP_TARGET_AND_HOST(buffer,len)
 735 #else /* Target and host byte order differ.  */
 736 #define SWAP_TARGET_AND_HOST(buffer,len) \
 737   {                                                                      \
 738     char tmp;                                                            \
 739     char *p = (char *)(buffer);                                          \
 740     char *q = ((char *)(buffer)) + len - 1;                              \
 741     for (; p < q; p++, q--)                                              \
 742       {                                                                  \
 743         tmp = *q;                                                        \
 744         *q = *p;                                                         \
 745         *p = tmp;                                                        \
 746       }                                                                  \
 747   }
 748 #endif /* Target and host byte order differ.  */
 749
 750 /* On some machines there are bits in addresses which are not really
 751    part of the address, but are used by the kernel, the hardware, etc.
 752    for special purposes.  ADDR_BITS_REMOVE takes out any such bits
 753    so we get a "real" address such as one would find in a symbol
 754    table.  ADDR_BITS_SET sets those bits the way the system wants
 755    them.  */
 756 #if !defined (ADDR_BITS_REMOVE)
 757 #define ADDR_BITS_REMOVE(addr) (addr)
 758 #define ADDR_BITS_SET(addr) (addr)
 759 #endif /* No ADDR_BITS_REMOVE.  */
 760
 761 /* From valops.c */
 762
 763 extern CORE_ADDR
 764 push_bytes PARAMS ((CORE_ADDR, char *, int));
 765
 766 /* In some modules, we don't have a definition of REGISTER_TYPE yet, so we
 767    must avoid prototyping this function for now.  FIXME.  Should be:
 768 extern CORE_ADDR
 769 push_word PARAMS ((CORE_ADDR, REGISTER_TYPE));
 770  */
 771 extern CORE_ADDR
 772 push_word ();
 773
 774 #endif /* !defined (DEFS_H) */