gdb/defs.h

   1 /* Basic, host-specific, and target-specific definitions for GDB.
   2    Copyright (C) 1986, 89, 91, 92, 93, 94, 95, 1996, 1998
   3    Free Software Foundation, Inc.
   4
   5 This file is part of GDB.
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2 of the License, or
  10 (at your option) any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program; if not, write to the Free Software
  19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  20
  21 #ifndef DEFS_H
  22 #define DEFS_H
  23
  24 #include "config.h"             /* Generated by configure */
  25 #include <stdio.h>
  26 #include <errno.h>              /* System call error return status */
  27
  28 #ifdef HAVE_STDDEF_H
  29 #  include <stddef.h>
  30 #else
  31 #  include <sys/types.h>   /* for size_t */
  32 #endif
  33
  34 /* Just in case they're not defined in stdio.h. */
  35
  36 #ifndef SEEK_SET
  37 #define SEEK_SET 0
  38 #endif
  39 #ifndef SEEK_CUR
  40 #define SEEK_CUR 1
  41 #endif
  42
  43 /* First include ansidecl.h so we can use the various macro definitions
  44    here and in all subsequent file inclusions.  */
  45
  46 #include "ansidecl.h"
  47
  48 #ifdef ANSI_PROTOTYPES
  49 #include <stdarg.h>
  50 #else
  51 #include <varargs.h>
  52 #endif
  53
  54 #include "libiberty.h"
  55
  56 /* libiberty.h can't declare this one, but evidently we can.  */
  57 extern char *strsignal PARAMS ((int));
  58
  59 #include "progress.h"
  60
  61 #ifdef USE_MMALLOC
  62 #include "mmalloc.h"
  63 #endif
  64
  65 /* For BFD64 and bfd_vma.  */
  66 #include "bfd.h"
  67
  68 /* An address in the program being debugged.  Host byte order.  Rather
  69    than duplicate all the logic in BFD which figures out what type
  70    this is (long, long long, etc.) and whether it needs to be 64
  71    bits (the host/target interactions are subtle), we just use
  72    bfd_vma.  */
  73
  74 typedef bfd_vma CORE_ADDR;
  75
  76 #ifndef min
  77 #define min(a, b) ((a) < (b) ? (a) : (b))
  78 #endif
  79 #ifndef max
  80 #define max(a, b) ((a) > (b) ? (a) : (b))
  81 #endif
  82
  83 /* Gdb does *lots* of string compares.  Use macros to speed them up by
  84    avoiding function calls if the first characters are not the same. */
  85
  86 #define STRCMP(a,b) (*(a) == *(b) ? strcmp ((a), (b)) : (int)*(a) - (int)*(b))
  87 #define STREQ(a,b) (*(a) == *(b) ? !strcmp ((a), (b)) : 0)
  88 #define STREQN(a,b,c) (*(a) == *(b) ? !strncmp ((a), (b), (c)) : 0)
  89
  90 /* The character GNU C++ uses to build identifiers that must be unique from
  91    the program's identifiers (such as $this and $$vptr).  */
  92 #define CPLUS_MARKER '$'        /* May be overridden to '.' for SysV */
  93
  94 /* Check if a character is one of the commonly used C++ marker characters.  */
  95 extern int is_cplus_marker PARAMS ((int));
  96
  97 extern int quit_flag;
  98 extern int immediate_quit;
  99 extern int sevenbit_strings;
 100
 101 extern void quit PARAMS ((void));
 102
 103 #ifdef QUIT
 104 /* do twice to force compiler warning */
 105 #define QUIT_FIXME "FIXME"
 106 #define QUIT_FIXME "ignoring redefinition of QUIT"
 107 #else
 108 #define QUIT { \
 109   if (quit_flag) quit (); \
 110   if (interactive_hook) interactive_hook (); \
 111   PROGRESS (1); \
 112 }
 113 #endif
 114
 115 /* Command classes are top-level categories into which commands are broken
 116    down for "help" purposes.
 117    Notes on classes: class_alias is for alias commands which are not
 118    abbreviations of the original command.  class-pseudo is for commands
 119    which are not really commands nor help topics ("stop").  */
 120
 121 enum command_class
 122 {
 123   /* Special args to help_list */
 124   all_classes = -2, all_commands = -1,
 125   /* Classes of commands */
 126   no_class = -1, class_run = 0, class_vars, class_stack,
 127   class_files, class_support, class_info, class_breakpoint, class_trace,
 128   class_alias, class_obscure, class_user, class_maintenance,
 129   class_pseudo
 130 };
 131
 132 /* Languages represented in the symbol table and elsewhere.
 133    This should probably be in language.h, but since enum's can't
 134    be forward declared to satisfy opaque references before their
 135    actual definition, needs to be here. */
 136
 137 enum language
 138 {
 139    language_unknown,            /* Language not known */
 140    language_auto,               /* Placeholder for automatic setting */
 141    language_c,                  /* C */
 142    language_cplus,              /* C++ */
 143    /* start-sanitize-java */
 144    language_java,               /* Java */
 145    /* end-sanitize-java */
 146    language_chill,              /* Chill */
 147    language_fortran,            /* Fortran */
 148    language_m2,                 /* Modula-2 */
 149    language_asm,                /* Assembly language */
 150    language_scm                 /* Scheme / Guile */
 151 };
 152
 153 /* the cleanup list records things that have to be undone
 154    if an error happens (descriptors to be closed, memory to be freed, etc.)
 155    Each link in the chain records a function to call and an
 156    argument to give it.
 157
 158    Use make_cleanup to add an element to the cleanup chain.
 159    Use do_cleanups to do all cleanup actions back to a given
 160    point in the chain.  Use discard_cleanups to remove cleanups
 161    from the chain back to a given point, not doing them.  */
 162
 163 struct cleanup
 164 {
 165   struct cleanup *next;
 166   void (*function) PARAMS ((PTR));
 167   PTR arg;
 168 };
 169
 170
 171 /* The ability to declare that a function never returns is useful, but
 172    not really required to compile GDB successfully, so the NORETURN and
 173    ATTR_NORETURN macros normally expand into nothing.  */
 174
 175 /* If compiling with older versions of GCC, a function may be declared
 176    "volatile" to indicate that it does not return.  */
 177
 178 #ifndef NORETURN
 179 # if defined(__GNUC__) \
 180      && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
 181 #  define NORETURN volatile
 182 # else
 183 #  define NORETURN /* nothing */
 184 # endif
 185 #endif
 186
 187 /* GCC 2.5 and later versions define a function attribute "noreturn",
 188    which is the preferred way to declare that a function never returns.
 189    However GCC 2.7 appears to be the first version in which this fully
 190    works everywhere we use it. */
 191
 192 #ifndef ATTR_NORETURN
 193 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 7
 194 #  define ATTR_NORETURN __attribute__ ((noreturn))
 195 # else
 196 #  define ATTR_NORETURN /* nothing */
 197 # endif
 198 #endif
 199
 200 #ifndef ATTR_FORMAT
 201 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 4 && defined (__ANSI_PROTOTYPES)
 202 #  define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
 203 # else
 204 #  define ATTR_FORMAT(type, x, y) /* nothing */
 205 # endif
 206 #endif
 207
 208 /* Needed for various prototypes */
 209
 210 #ifdef __STDC__
 211 struct symtab;
 212 struct breakpoint;
 213 #endif
 214
 215 /* From blockframe.c */
 216
 217 extern int inside_entry_func PARAMS ((CORE_ADDR));
 218
 219 extern int inside_entry_file PARAMS ((CORE_ADDR addr));
 220
 221 extern int inside_main_func PARAMS ((CORE_ADDR pc));
 222
 223 extern void _initialize_blockframe PARAMS ((void));
 224
 225 /* From ch-lang.c, for the moment. (FIXME) */
 226
 227 extern char *chill_demangle PARAMS ((const char *));
 228
 229 /* From utils.c */
 230
 231 extern void notice_quit PARAMS ((void));
 232
 233 extern int strcmp_iw PARAMS ((const char *, const char *));
 234
 235 extern char *safe_strerror PARAMS ((int));
 236
 237 extern char *safe_strsignal PARAMS ((int));
 238
 239 extern void init_malloc PARAMS ((void *));
 240
 241 extern void request_quit PARAMS ((int));
 242
 243 extern void do_cleanups PARAMS ((struct cleanup *));
 244 extern void do_final_cleanups PARAMS ((struct cleanup *));
 245 extern void do_my_cleanups PARAMS ((struct cleanup **, struct cleanup *));
 246
 247 extern void discard_cleanups PARAMS ((struct cleanup *));
 248 extern void discard_final_cleanups PARAMS ((struct cleanup *));
 249 extern void discard_my_cleanups PARAMS ((struct cleanup **, struct cleanup *));
 250
 251 typedef void (*make_cleanup_func) (void *);
 252
 253 extern struct cleanup *
 254 make_cleanup PARAMS ((make_cleanup_func, void *));
 255
 256 extern struct cleanup *
 257 make_final_cleanup PARAMS ((void (*function) (void *), void *));
 258
 259 extern struct cleanup *
 260 make_my_cleanup PARAMS ((struct cleanup **, void (*function) (void *), void *));
 261
 262 extern struct cleanup *
 263 make_run_cleanup PARAMS ((void (*function) (void *), void *));
 264
 265 extern struct cleanup *save_cleanups PARAMS ((void));
 266 extern struct cleanup *save_final_cleanups PARAMS ((void));
 267 extern struct cleanup *save_my_cleanups PARAMS ((struct cleanup **));
 268
 269 extern void restore_cleanups PARAMS ((struct cleanup *));
 270 extern void restore_final_cleanups PARAMS ((struct cleanup *));
 271 extern void restore_my_cleanups PARAMS ((struct cleanup **, struct cleanup *));
 272
 273 extern void free_current_contents PARAMS ((char **));
 274
 275 extern void null_cleanup PARAMS ((PTR));
 276
 277 extern int myread PARAMS ((int, char *, int));
 278
 279 extern int query PARAMS((char *, ...))
 280      ATTR_FORMAT(printf, 1, 2);
 281
 282 #if !defined (USE_MMALLOC)
 283 extern PTR mmalloc PARAMS ((PTR, size_t));
 284 extern PTR mrealloc PARAMS ((PTR, PTR, size_t));
 285 extern void mfree PARAMS ((PTR, PTR));
 286 #endif
 287
 288 /* From demangle.c */
 289
 290 extern void set_demangling_style PARAMS ((char *));
 291
 292 \f
 293 /* Annotation stuff.  */
 294
 295 extern int annotation_level; /* in stack.c */
 296 \f
 297 extern void begin_line PARAMS ((void));
 298
 299 extern void wrap_here PARAMS ((char *));
 300
 301 extern void reinitialize_more_filter PARAMS ((void));
 302
 303 typedef FILE GDB_FILE;
 304 #define gdb_stdout stdout
 305 #define gdb_stderr stderr
 306
 307 extern void gdb_flush PARAMS ((GDB_FILE *));
 308
 309 extern GDB_FILE *gdb_fopen PARAMS ((char * name, char * mode));
 310
 311 extern void fputs_filtered PARAMS ((const char *, GDB_FILE *));
 312
 313 extern void fputs_unfiltered PARAMS ((const char *, GDB_FILE *));
 314
 315 extern int fputc_filtered PARAMS ((int c, GDB_FILE *));
 316
 317 extern int fputc_unfiltered PARAMS ((int c, GDB_FILE *));
 318
 319 extern int putchar_unfiltered PARAMS ((int c));
 320
 321 extern void puts_filtered PARAMS ((const char *));
 322
 323 extern void puts_unfiltered PARAMS ((const char *));
 324
 325 extern void puts_debug PARAMS ((char *prefix, char *string, char *suffix));
 326
 327 extern void vprintf_filtered PARAMS ((const char *, va_list))
 328      ATTR_FORMAT(printf, 1, 0);
 329
 330 extern void vfprintf_filtered PARAMS ((FILE *, const char *, va_list))
 331      ATTR_FORMAT(printf, 2, 0);
 332
 333 extern void fprintf_filtered PARAMS ((FILE *, const char *, ...))
 334      ATTR_FORMAT(printf, 2, 3);
 335
 336 extern void fprintfi_filtered PARAMS ((int, FILE *, const char *, ...))
 337      ATTR_FORMAT(printf, 3, 4);
 338
 339 extern void printf_filtered PARAMS ((const char *, ...))
 340      ATTR_FORMAT(printf, 1, 2);
 341
 342 extern void printfi_filtered PARAMS ((int, const char *, ...))
 343      ATTR_FORMAT(printf, 2, 3);
 344
 345 extern void vprintf_unfiltered PARAMS ((const char *, va_list))
 346      ATTR_FORMAT(printf, 1, 0);
 347
 348 extern void vfprintf_unfiltered PARAMS ((FILE *, const char *, va_list))
 349      ATTR_FORMAT(printf, 2, 0);
 350
 351 extern void fprintf_unfiltered PARAMS ((FILE *, const char *, ...))
 352      ATTR_FORMAT(printf, 2, 3);
 353
 354 extern void printf_unfiltered PARAMS ((const char *, ...))
 355      ATTR_FORMAT(printf, 1, 2);
 356
 357 extern void print_spaces PARAMS ((int, GDB_FILE *));
 358
 359 extern void print_spaces_filtered PARAMS ((int, GDB_FILE *));
 360
 361 extern char *n_spaces PARAMS ((int));
 362
 363 extern void gdb_printchar PARAMS ((int, GDB_FILE *, int));
 364
 365 extern void gdb_print_address PARAMS ((void *, GDB_FILE *));
 366
 367 typedef bfd_vma t_addr;
 368 typedef bfd_vma t_reg;
 369 extern char* paddr PARAMS ((t_addr addr));
 370
 371 extern char* preg PARAMS ((t_reg reg));
 372
 373 extern char* paddr_nz PARAMS ((t_addr addr));
 374
 375 extern char* preg_nz PARAMS ((t_reg reg));
 376
 377 extern void fprintf_symbol_filtered PARAMS ((GDB_FILE *, char *,
 378                                              enum language, int));
 379
 380 extern NORETURN void perror_with_name PARAMS ((char *)) ATTR_NORETURN;
 381
 382 extern void print_sys_errmsg PARAMS ((char *, int));
 383
 384 extern void _initialize_stack PARAMS ((void));
 385
 386 /* From regex.c or libc.  BSD 4.4 declares this with the argument type as
 387    "const char *" in unistd.h, so we can't declare the argument
 388    as "char *".  */
 389
 390 extern char *re_comp PARAMS ((const char *));
 391
 392 /* From symfile.c */
 393
 394 extern void symbol_file_command PARAMS ((char *, int));
 395
 396 /* From top.c */
 397
 398 extern char *skip_quoted PARAMS ((char *));
 399
 400 extern char *gdb_readline PARAMS ((char *));
 401
 402 extern char *command_line_input PARAMS ((char *, int, char *));
 403
 404 extern void print_prompt PARAMS ((void));
 405
 406 extern int input_from_terminal_p PARAMS ((void));
 407
 408 extern int info_verbose;
 409
 410 /* From printcmd.c */
 411
 412 extern void set_next_address PARAMS ((CORE_ADDR));
 413
 414 extern void print_address_symbolic PARAMS ((CORE_ADDR, GDB_FILE *, int,
 415                                             char *));
 416
 417 extern void print_address_numeric PARAMS ((CORE_ADDR, int, GDB_FILE *));
 418
 419 extern void print_address PARAMS ((CORE_ADDR, GDB_FILE *));
 420
 421 extern void _initialize_printcmd PARAMS ((void));
 422
 423 /* From source.c */
 424
 425 extern int openp PARAMS ((char *, int, char *, int, int, char **));
 426
 427 extern void mod_path PARAMS ((char *, char **));
 428
 429 extern void directory_command PARAMS ((char *, int));
 430
 431 extern void init_source_path PARAMS ((void));
 432
 433 extern char *symtab_to_filename PARAMS ((struct symtab *));
 434
 435 /* From findvar.c */
 436
 437 extern int read_relative_register_raw_bytes PARAMS ((int, char *));
 438
 439 /* From readline (but not in any readline .h files).  */
 440
 441 extern char *tilde_expand PARAMS ((char *));
 442
 443 /* Control types for commands */
 444
 445 enum misc_command_type
 446 {
 447   ok_command,
 448   end_command,
 449   else_command,
 450   nop_command
 451 };
 452
 453 enum command_control_type
 454 {
 455   simple_control,
 456   break_control,
 457   continue_control,
 458   while_control,
 459   if_control,
 460   invalid_control
 461 };
 462
 463 /* Structure for saved commands lines
 464    (for breakpoints, defined commands, etc).  */
 465
 466 struct command_line
 467 {
 468   struct command_line *next;
 469   char *line;
 470   enum command_control_type control_type;
 471   int body_count;
 472   struct command_line **body_list;
 473 };
 474
 475 extern struct command_line *read_command_lines PARAMS ((char *, int));
 476
 477 extern void free_command_lines PARAMS ((struct command_line **));
 478
 479 /* String containing the current directory (what getwd would return).  */
 480
 481 extern char *current_directory;
 482
 483 /* Default radixes for input and output.  Only some values supported.  */
 484 extern unsigned input_radix;
 485 extern unsigned output_radix;
 486
 487 /* Possibilities for prettyprint parameters to routines which print
 488    things.  Like enum language, this should be in value.h, but needs
 489    to be here for the same reason.  FIXME:  If we can eliminate this
 490    as an arg to LA_VAL_PRINT, then we can probably move it back to
 491    value.h. */
 492
 493 enum val_prettyprint
 494 {
 495   Val_no_prettyprint = 0,
 496   Val_prettyprint,
 497   /* Use the default setting which the user has specified.  */
 498   Val_pretty_default
 499 };
 500
 501 \f
 502 /* Host machine definition.  This will be a symlink to one of the
 503    xm-*.h files, built by the `configure' script.  */
 504
 505 #include "xm.h"
 506
 507 /* Native machine support.  This will be a symlink to one of the
 508    nm-*.h files, built by the `configure' script.  */
 509
 510 #include "nm.h"
 511
 512 /* Target machine definition.  This will be a symlink to one of the
 513    tm-*.h files, built by the `configure' script.  */
 514
 515 #include "tm.h"
 516
 517 /* If the xm.h file did not define the mode string used to open the
 518    files, assume that binary files are opened the same way as text
 519    files */
 520 #ifndef FOPEN_RB
 521 #include "fopen-same.h"
 522 #endif
 523
 524 /* Microsoft C can't deal with const pointers */
 525
 526 #ifdef _MSC_VER
 527 #define CONST_PTR
 528 #else
 529 #define CONST_PTR const
 530 #endif
 531
 532 /*
 533  * Allow things in gdb to be declared "volatile".  If compiling ANSI, it
 534  * just works.  If compiling with gcc but non-ansi, redefine to __volatile__.
 535  * If non-ansi, non-gcc, then eliminate "volatile" entirely, making those
 536  * objects be read-write rather than read-only.
 537  */
 538
 539 #ifndef volatile
 540 #ifndef __STDC__
 541 # ifdef __GNUC__
 542 #  define volatile __volatile__
 543 # else
 544 #  define volatile /*nothing*/
 545 # endif /* GNUC */
 546 #endif /* STDC */
 547 #endif /* volatile */
 548
 549 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
 550    FIXME: Assumes 2's complement arithmetic */
 551
 552 #if !defined (UINT_MAX)
 553 #define UINT_MAX ((unsigned int)(~0))           /* 0xFFFFFFFF for 32-bits */
 554 #endif
 555
 556 #if !defined (INT_MAX)
 557 #define INT_MAX ((int)(UINT_MAX >> 1))          /* 0x7FFFFFFF for 32-bits */
 558 #endif
 559
 560 #if !defined (INT_MIN)
 561 #define INT_MIN ((int)((int) ~0 ^ INT_MAX))     /* 0x80000000 for 32-bits */
 562 #endif
 563
 564 #if !defined (ULONG_MAX)
 565 #define ULONG_MAX ((unsigned long)(~0L))        /* 0xFFFFFFFF for 32-bits */
 566 #endif
 567
 568 #if !defined (LONG_MAX)
 569 #define LONG_MAX ((long)(ULONG_MAX >> 1))       /* 0x7FFFFFFF for 32-bits */
 570 #endif
 571
 572 #ifndef LONGEST
 573
 574 #ifdef BFD64
 575
 576 /* This is to make sure that LONGEST is at least as big as CORE_ADDR.  */
 577
 578 #define LONGEST BFD_HOST_64_BIT
 579 #define ULONGEST BFD_HOST_U_64_BIT
 580
 581 #else /* No BFD64 */
 582
 583 #  ifdef CC_HAS_LONG_LONG
 584 #    define LONGEST long long
 585 #    define ULONGEST unsigned long long
 586 #  else
 587 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
 588    (e.g. i386-windows) so try it.  */
 589 #    ifdef BFD_HOST_64_BIT
 590 #      define LONGEST BFD_HOST_64_BIT
 591 #      define ULONGEST BFD_HOST_U_64_BIT
 592 #    else
 593 #      define LONGEST long
 594 #      define ULONGEST unsigned long
 595 #    endif
 596 #  endif
 597
 598 #endif /* No BFD64 */
 599
 600 #endif /* ! LONGEST */
 601
 602 /* Convert a LONGEST to an int.  This is used in contexts (e.g. number of
 603    arguments to a function, number in a value history, register number, etc.)
 604    where the value must not be larger than can fit in an int.  */
 605
 606 extern int longest_to_int PARAMS ((LONGEST));
 607
 608 /* Assorted functions we can declare, now that const and volatile are
 609    defined.  */
 610
 611 extern char *savestring PARAMS ((const char *, int));
 612
 613 extern char *msavestring PARAMS ((void *, const char *, int));
 614
 615 extern char *strsave PARAMS ((const char *));
 616
 617 extern char *mstrsave PARAMS ((void *, const char *));
 618
 619 #ifdef _MSC_VER /* FIXME; was long, but this causes compile errors in msvc if already defined */
 620 extern PTR xmmalloc PARAMS ((PTR, size_t));
 621
 622 extern PTR xmrealloc PARAMS ((PTR, PTR, size_t));
 623 #else
 624 extern PTR xmmalloc PARAMS ((PTR, long));
 625
 626 extern PTR xmrealloc PARAMS ((PTR, PTR, long));
 627 #endif
 628
 629 extern int parse_escape PARAMS ((char **));
 630
 631 extern char *reg_names[];
 632
 633 /* Message to be printed before the error message, when an error occurs.  */
 634
 635 extern char *error_pre_print;
 636
 637 /* Message to be printed before the error message, when an error occurs.  */
 638
 639 extern char *quit_pre_print;
 640
 641 /* Message to be printed before the warning message, when a warning occurs.  */
 642
 643 extern char *warning_pre_print;
 644
 645 extern NORETURN void error PARAMS((const char *, ...)) ATTR_NORETURN;
 646
 647 extern void error_begin PARAMS ((void));
 648
 649 extern NORETURN void fatal PARAMS((char *, ...)) ATTR_NORETURN;
 650
 651 extern NORETURN void nomem PARAMS ((long)) ATTR_NORETURN;
 652
 653 /* Reasons for calling return_to_top_level.  */
 654 enum return_reason {
 655   /* User interrupt.  */
 656   RETURN_QUIT,
 657
 658   /* Any other error.  */
 659   RETURN_ERROR
 660 };
 661
 662 #define RETURN_MASK_QUIT (1 << (int)RETURN_QUIT)
 663 #define RETURN_MASK_ERROR (1 << (int)RETURN_ERROR)
 664 #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
 665 typedef int return_mask;
 666
 667 extern NORETURN void
 668 return_to_top_level PARAMS ((enum return_reason)) ATTR_NORETURN;
 669
 670 extern int
 671 catch_errors PARAMS ((int (*) (char *), void *, char *, return_mask));
 672
 673 extern void warning_begin PARAMS ((void));
 674
 675 extern void warning PARAMS ((const char *, ...))
 676      ATTR_FORMAT(printf, 1, 2);
 677
 678 /* Global functions from other, non-gdb GNU thingies.
 679    Libiberty thingies are no longer declared here.  We include libiberty.h
 680    above, instead.  */
 681
 682 #ifndef GETENV_PROVIDED
 683 extern char *getenv PARAMS ((const char *));
 684 #endif
 685
 686 /* From other system libraries */
 687
 688 #ifdef HAVE_STDDEF_H
 689 #include <stddef.h>
 690 #endif
 691
 692 #ifdef HAVE_STDLIB_H
 693 #if defined(_MSC_VER) && !defined(__cplusplus)
 694 /* msvc defines these in stdlib.h for c code */
 695 #undef min
 696 #undef max
 697 #endif
 698 #include <stdlib.h>
 699 #endif
 700 #ifndef min
 701 #define min(a, b) ((a) < (b) ? (a) : (b))
 702 #endif
 703 #ifndef max
 704 #define max(a, b) ((a) > (b) ? (a) : (b))
 705 #endif
 706
 707
 708 /* We take the address of fclose later, but some stdio's forget
 709    to declare this.  We can't always declare it since there's
 710    no way to declare the parameters without upsetting some compiler
 711    somewhere. */
 712
 713 #ifndef FCLOSE_PROVIDED
 714 extern int fclose PARAMS ((FILE *));
 715 #endif
 716
 717 #ifndef atof
 718 extern double atof PARAMS ((const char *));     /* X3.159-1989  4.10.1.1 */
 719 #endif
 720
 721 #ifndef MALLOC_INCOMPATIBLE
 722
 723 #ifdef NEED_DECLARATION_MALLOC
 724 extern PTR malloc ();
 725 #endif
 726
 727 #ifdef NEED_DECLARATION_REALLOC
 728 extern PTR realloc ();
 729 #endif
 730
 731 #ifdef NEED_DECLARATION_FREE
 732 extern void free ();
 733 #endif
 734
 735 #endif /* MALLOC_INCOMPATIBLE */
 736
 737 /* Various possibilities for alloca.  */
 738 #ifndef alloca
 739 # ifdef __GNUC__
 740 #  define alloca __builtin_alloca
 741 # else /* Not GNU C */
 742 #  ifdef HAVE_ALLOCA_H
 743 #   include <alloca.h>
 744 #  else
 745 #   ifdef _AIX
 746  #pragma alloca
 747 #   else
 748
 749 /* We need to be careful not to declare this in a way which conflicts with
 750    bison.  Bison never declares it as char *, but under various circumstances
 751    (like __hpux) we need to use void *.  */
 752 #    if defined (__STDC__) || defined (__hpux)
 753    extern void *alloca ();
 754 #    else /* Don't use void *.  */
 755    extern char *alloca ();
 756 #    endif /* Don't use void *.  */
 757 #   endif /* Not _AIX */
 758 #  endif /* Not HAVE_ALLOCA_H */
 759 # endif /* Not GNU C */
 760 #endif /* alloca not defined */
 761
 762 /* HOST_BYTE_ORDER must be defined to one of these.  */
 763
 764 #ifdef HAVE_ENDIAN_H
 765 #include <endian.h>
 766 #endif
 767
 768 #if !defined (BIG_ENDIAN)
 769 #define BIG_ENDIAN 4321
 770 #endif
 771
 772 #if !defined (LITTLE_ENDIAN)
 773 #define LITTLE_ENDIAN 1234
 774 #endif
 775
 776 /* Target-system-dependent parameters for GDB. */
 777
 778 #ifdef TARGET_BYTE_ORDER_SELECTABLE
 779 /* The target endianness is selectable at runtime.  Define
 780    TARGET_BYTE_ORDER to be a variable.  The user can use the `set
 781    endian' command to change it.  */
 782 #undef TARGET_BYTE_ORDER
 783 #define TARGET_BYTE_ORDER target_byte_order
 784 extern int target_byte_order;
 785 /* Nonzero when target_byte_order auto-detected */
 786 extern int target_byte_order_auto;
 787 #endif
 788
 789 extern void set_endian_from_file PARAMS ((bfd *));
 790
 791 /* The target architecture can be set at run-time. */
 792 extern int target_architecture_auto;
 793 extern const bfd_arch_info_type *target_architecture;
 794 extern void set_architecture_from_file PARAMS ((bfd *));
 795 /* Notify target of a change to the selected architecture. Zero return
 796    status indicates that the target did not like the change. */
 797 extern int (*target_architecture_hook) PARAMS ((const bfd_arch_info_type *ap));
 798 extern void set_architecture_from_arch_mach PARAMS ((enum bfd_architecture arch, unsigned long mach));
 799
 800 /* Number of bits in a char or unsigned char for the target machine.
 801    Just like CHAR_BIT in <limits.h> but describes the target machine.  */
 802 #if !defined (TARGET_CHAR_BIT)
 803 #define TARGET_CHAR_BIT 8
 804 #endif
 805
 806 /* Number of bits in a short or unsigned short for the target machine. */
 807 #if !defined (TARGET_SHORT_BIT)
 808 #define TARGET_SHORT_BIT (2 * TARGET_CHAR_BIT)
 809 #endif
 810
 811 /* Number of bits in an int or unsigned int for the target machine. */
 812 #if !defined (TARGET_INT_BIT)
 813 #define TARGET_INT_BIT (4 * TARGET_CHAR_BIT)
 814 #endif
 815
 816 /* Number of bits in a long or unsigned long for the target machine. */
 817 #if !defined (TARGET_LONG_BIT)
 818 #define TARGET_LONG_BIT (4 * TARGET_CHAR_BIT)
 819 #endif
 820
 821 /* Number of bits in a long long or unsigned long long for the target machine. */
 822 #if !defined (TARGET_LONG_LONG_BIT)
 823 #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
 824 #endif
 825
 826 /* Number of bits in a float for the target machine. */
 827 #if !defined (TARGET_FLOAT_BIT)
 828 #define TARGET_FLOAT_BIT (4 * TARGET_CHAR_BIT)
 829 #endif
 830
 831 /* Number of bits in a double for the target machine. */
 832 #if !defined (TARGET_DOUBLE_BIT)
 833 #define TARGET_DOUBLE_BIT (8 * TARGET_CHAR_BIT)
 834 #endif
 835
 836 /* Number of bits in a long double for the target machine.  */
 837 #if !defined (TARGET_LONG_DOUBLE_BIT)
 838 #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
 839 #endif
 840
 841 /* Number of bits in a pointer for the target machine */
 842 #if !defined (TARGET_PTR_BIT)
 843 #define TARGET_PTR_BIT TARGET_INT_BIT
 844 #endif
 845
 846 /* If we picked up a copy of CHAR_BIT from a configuration file
 847    (which may get it by including <limits.h>) then use it to set
 848    the number of bits in a host char.  If not, use the same size
 849    as the target. */
 850
 851 #if defined (CHAR_BIT)
 852 #define HOST_CHAR_BIT CHAR_BIT
 853 #else
 854 #define HOST_CHAR_BIT TARGET_CHAR_BIT
 855 #endif
 856
 857 /* The bit byte-order has to do just with numbering of bits in
 858    debugging symbols and such.  Conceptually, it's quite separate
 859    from byte/word byte order.  */
 860
 861 #if !defined (BITS_BIG_ENDIAN)
 862 #ifndef TARGET_BYTE_ORDER_SELECTABLE
 863
 864 #if TARGET_BYTE_ORDER == BIG_ENDIAN
 865 #define BITS_BIG_ENDIAN 1
 866 #endif /* Big endian.  */
 867
 868 #if TARGET_BYTE_ORDER == LITTLE_ENDIAN
 869 #define BITS_BIG_ENDIAN 0
 870 #endif /* Little endian.  */
 871
 872 #else /* defined (TARGET_BYTE_ORDER_SELECTABLE) */
 873
 874 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BIG_ENDIAN)
 875
 876 #endif /* defined (TARGET_BYTE_ORDER_SELECTABLE) */
 877 #endif /* BITS_BIG_ENDIAN not defined.  */
 878
 879 /* In findvar.c.  */
 880
 881 extern LONGEST extract_signed_integer PARAMS ((void *, int));
 882
 883 extern ULONGEST extract_unsigned_integer PARAMS ((void *, int));
 884
 885 extern int extract_long_unsigned_integer PARAMS ((void *, int, LONGEST *));
 886
 887 extern CORE_ADDR extract_address PARAMS ((void *, int));
 888
 889 extern void store_signed_integer PARAMS ((void *, int, LONGEST));
 890
 891 extern void store_unsigned_integer PARAMS ((void *, int, ULONGEST));
 892
 893 extern void store_address PARAMS ((void *, int, CORE_ADDR));
 894
 895 /* Setup definitions for host and target floating point formats.  We need to
 896    consider the format for `float', `double', and `long double' for both target
 897    and host.  We need to do this so that we know what kind of conversions need
 898    to be done when converting target numbers to and from the hosts DOUBLEST
 899    data type.  */
 900
 901 /* This is used to indicate that we don't know the format of the floating point
 902    number.  Typically, this is useful for native ports, where the actual format
 903    is irrelevant, since no conversions will be taking place.  */
 904
 905 extern const struct floatformat floatformat_unknown;
 906
 907 #if HOST_BYTE_ORDER == BIG_ENDIAN
 908 #  ifndef HOST_FLOAT_FORMAT
 909 #    define HOST_FLOAT_FORMAT &floatformat_ieee_single_big
 910 #  endif
 911 #  ifndef HOST_DOUBLE_FORMAT
 912 #    define HOST_DOUBLE_FORMAT &floatformat_ieee_double_big
 913 #  endif
 914 #else                           /* LITTLE_ENDIAN */
 915 #  ifndef HOST_FLOAT_FORMAT
 916 #    define HOST_FLOAT_FORMAT &floatformat_ieee_single_little
 917 #  endif
 918 #  ifndef HOST_DOUBLE_FORMAT
 919 #    define HOST_DOUBLE_FORMAT &floatformat_ieee_double_little
 920 #  endif
 921 #endif
 922
 923 #ifndef HOST_LONG_DOUBLE_FORMAT
 924 #define HOST_LONG_DOUBLE_FORMAT &floatformat_unknown
 925 #endif
 926
 927 #ifndef TARGET_BYTE_ORDER_SELECTABLE
 928 #  if TARGET_BYTE_ORDER == BIG_ENDIAN
 929 #    ifndef TARGET_FLOAT_FORMAT
 930 #      define TARGET_FLOAT_FORMAT &floatformat_ieee_single_big
 931 #    endif
 932 #    ifndef TARGET_DOUBLE_FORMAT
 933 #      define TARGET_DOUBLE_FORMAT &floatformat_ieee_double_big
 934 #    endif
 935 #  else /* LITTLE_ENDIAN */
 936 #    ifndef TARGET_FLOAT_FORMAT
 937 #      define TARGET_FLOAT_FORMAT &floatformat_ieee_single_little
 938 #    endif
 939 #    ifndef TARGET_DOUBLE_FORMAT
 940 #      define TARGET_DOUBLE_FORMAT &floatformat_ieee_double_little
 941 #    endif
 942 #  endif
 943 #else                           /* TARGET_BYTE_ORDER_SELECTABLE */
 944 #  ifndef TARGET_FLOAT_FORMAT
 945 #    define TARGET_FLOAT_FORMAT (target_byte_order == BIG_ENDIAN \
 946                                  ? &floatformat_ieee_single_big \
 947                                  : &floatformat_ieee_single_little)
 948 #  endif
 949 #  ifndef TARGET_DOUBLE_FORMAT
 950 #    define TARGET_DOUBLE_FORMAT (target_byte_order == BIG_ENDIAN \
 951                                   ? &floatformat_ieee_double_big \
 952                                   : &floatformat_ieee_double_little)
 953 #  endif
 954 #endif
 955
 956 #ifndef TARGET_LONG_DOUBLE_FORMAT
 957 #  define TARGET_LONG_DOUBLE_FORMAT &floatformat_unknown
 958 #endif
 959
 960 /* Use `long double' if the host compiler supports it.  (Note that this is not
 961    necessarily any longer than `double'.  On SunOS/gcc, it's the same as
 962    double.)  This is necessary because GDB internally converts all floating
 963    point values to the widest type supported by the host.
 964
 965    There are problems however, when the target `long double' is longer than the
 966    host's `long double'.  In general, we'll probably reduce the precision of
 967    any such values and print a warning.  */
 968
 969 #ifdef HAVE_LONG_DOUBLE
 970 typedef long double DOUBLEST;
 971 #else
 972 typedef double DOUBLEST;
 973 #endif
 974
 975 extern void floatformat_to_doublest PARAMS ((const struct floatformat *,
 976                                              char *, DOUBLEST *));
 977 extern void floatformat_from_doublest PARAMS ((const struct floatformat *,
 978                                                DOUBLEST *, char *));
 979 extern DOUBLEST extract_floating PARAMS ((void *, int));
 980
 981 extern void store_floating PARAMS ((void *, int, DOUBLEST));
 982 \f
 983 /* On some machines there are bits in addresses which are not really
 984    part of the address, but are used by the kernel, the hardware, etc.
 985    for special purposes.  ADDR_BITS_REMOVE takes out any such bits
 986    so we get a "real" address such as one would find in a symbol
 987    table.  This is used only for addresses of instructions, and even then
 988    I'm not sure it's used in all contexts.  It exists to deal with there
 989    being a few stray bits in the PC which would mislead us, not as some sort
 990    of generic thing to handle alignment or segmentation (it's possible it
 991    should be in TARGET_READ_PC instead).  */
 992 #if !defined (ADDR_BITS_REMOVE)
 993 #define ADDR_BITS_REMOVE(addr) (addr)
 994 #endif /* No ADDR_BITS_REMOVE.  */
 995
 996 /* From valops.c */
 997
 998 extern CORE_ADDR push_bytes PARAMS ((CORE_ADDR, char *, int));
 999
1000 extern CORE_ADDR push_word PARAMS ((CORE_ADDR, ULONGEST));
1001
1002 /* Some parts of gdb might be considered optional, in the sense that they
1003    are not essential for being able to build a working, usable debugger
1004    for a specific environment.  For example, the maintenance commands
1005    are there for the benefit of gdb maintainers.  As another example,
1006    some environments really don't need gdb's that are able to read N
1007    different object file formats.  In order to make it possible (but
1008    not necessarily recommended) to build "stripped down" versions of
1009    gdb, the following defines control selective compilation of those
1010    parts of gdb which can be safely left out when necessary.  Note that
1011    the default is to include everything. */
1012
1013 #ifndef MAINTENANCE_CMDS
1014 #define MAINTENANCE_CMDS 1
1015 #endif
1016
1017 #ifdef MAINTENANCE_CMDS
1018 extern int watchdog;
1019 #endif
1020
1021 #include "dis-asm.h"            /* Get defs for disassemble_info */
1022
1023 extern int dis_asm_read_memory PARAMS ((bfd_vma memaddr, bfd_byte *myaddr,
1024                                         int len, disassemble_info *info));
1025
1026 extern void dis_asm_memory_error PARAMS ((int status, bfd_vma memaddr,
1027                                           disassemble_info *info));
1028
1029 extern void dis_asm_print_address PARAMS ((bfd_vma addr,
1030                                            disassemble_info *info));
1031
1032 extern int (*tm_print_insn) PARAMS ((bfd_vma, disassemble_info*));
1033 extern disassemble_info tm_print_insn_info;
1034
1035 /* Hooks for alternate command interfaces.  */
1036
1037 #ifdef __STDC__
1038 struct target_waitstatus;
1039 struct cmd_list_element;
1040 #endif
1041
1042 extern void (*init_ui_hook) PARAMS ((char *argv0));
1043 extern void (*command_loop_hook) PARAMS ((void));
1044 extern void (*fputs_unfiltered_hook) PARAMS ((const char *linebuffer,
1045                                               FILE *stream));
1046 extern void (*print_frame_info_listing_hook) PARAMS ((struct symtab *s,
1047                                                       int line, int stopline,
1048                                                       int noerror));
1049 extern int  (*query_hook) PARAMS ((const char *, va_list));
1050 extern void (*warning_hook) PARAMS ((const char *, va_list));
1051 extern void (*flush_hook) PARAMS ((FILE *stream));
1052 extern void (*create_breakpoint_hook) PARAMS ((struct breakpoint *b));
1053 extern void (*delete_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
1054 extern void (*modify_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
1055 extern void (*target_output_hook) PARAMS ((char *));
1056 extern void (*interactive_hook) PARAMS ((void));
1057 extern void (*registers_changed_hook) PARAMS ((void));
1058 extern void (*readline_begin_hook) PARAMS ((char *, ...));
1059 extern char * (*readline_hook) PARAMS ((char *));
1060 extern void (*readline_end_hook) PARAMS ((void));
1061 extern void (*pc_changed_hook) PARAMS ((void));
1062 extern void (*context_hook) PARAMS ((int));
1063 extern int (*target_wait_hook) PARAMS ((int pid,
1064                                         struct target_waitstatus *status));
1065
1066 extern void (*call_command_hook) PARAMS ((struct cmd_list_element *c,
1067                                           char *cmd, int from_tty));
1068
1069 extern NORETURN void (*error_hook) PARAMS ((void)) ATTR_NORETURN;
1070
1071
1072
1073 /* Inhibit window interface if non-zero. */
1074
1075 extern int use_windows;
1076
1077 /* Symbolic definitions of filename-related things.  */
1078 /* FIXME, this doesn't work very well if host and executable
1079    filesystems conventions are different.  */
1080
1081 #ifndef DIRNAME_SEPARATOR
1082 #define DIRNAME_SEPARATOR ':'
1083 #endif
1084
1085 #ifndef SLASH_P
1086 #if defined(__GO32__)||defined(_WIN32)
1087 #define SLASH_P(X) ((X)=='\\')
1088 #else
1089 #define SLASH_P(X) ((X)=='/')
1090 #endif
1091 #endif
1092
1093 #ifndef SLASH_CHAR
1094 #if defined(__GO32__)||defined(_WIN32)
1095 #define SLASH_CHAR '\\'
1096 #else
1097 #define SLASH_CHAR '/'
1098 #endif
1099 #endif
1100
1101 #ifndef SLASH_STRING
1102 #if defined(__GO32__)||defined(_WIN32)
1103 #define SLASH_STRING "\\"
1104 #else
1105 #define SLASH_STRING "/"
1106 #endif
1107 #endif
1108
1109 #ifndef ROOTED_P
1110 #define ROOTED_P(X) (SLASH_P((X)[0]))
1111 #endif
1112
1113 /* On some systems, PIDGET is defined to extract the inferior pid from
1114    an internal pid that has the thread id and pid in seperate bit
1115    fields.  If not defined, then just use the entire internal pid as
1116    the actual pid. */
1117
1118 #ifndef PIDGET
1119 #define PIDGET(pid) (pid)
1120 #endif
1121
1122 #endif /* #ifndef DEFS_H */