gdb/defs.h

   1 /* Basic, host-specific, and target-specific definitions for GDB.
   2    Copyright (C) 1986, 89, 91, 92, 93, 94, 95, 96, 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 #include <limits.h>
  28
  29 #ifdef HAVE_STDDEF_H
  30 #  include <stddef.h>
  31 #else
  32 #  include <sys/types.h>   /* for size_t */
  33 #endif
  34
  35 /* Just in case they're not defined in stdio.h. */
  36
  37 #ifndef SEEK_SET
  38 #define SEEK_SET 0
  39 #endif
  40 #ifndef SEEK_CUR
  41 #define SEEK_CUR 1
  42 #endif
  43
  44 /* First include ansidecl.h so we can use the various macro definitions
  45    here and in all subsequent file inclusions.  */
  46
  47 #include "ansidecl.h"
  48
  49 #ifdef ANSI_PROTOTYPES
  50 #include <stdarg.h>
  51 #else
  52 #include <varargs.h>
  53 #endif
  54
  55 #include "libiberty.h"
  56
  57 /* libiberty.h can't declare this one, but evidently we can.  */
  58 extern char *strsignal PARAMS ((int));
  59
  60 #include "progress.h"
  61
  62 #ifdef USE_MMALLOC
  63 #include "mmalloc.h"
  64 #endif
  65
  66 /* For BFD64 and bfd_vma.  */
  67 #include "bfd.h"
  68
  69 /* An address in the program being debugged.  Host byte order.  Rather
  70    than duplicate all the logic in BFD which figures out what type
  71    this is (long, long long, etc.) and whether it needs to be 64
  72    bits (the host/target interactions are subtle), we just use
  73    bfd_vma.  */
  74
  75 typedef bfd_vma CORE_ADDR;
  76
  77 extern int core_addr_lessthan PARAMS ((CORE_ADDR lhs, CORE_ADDR rhs));
  78 extern int core_addr_greaterthan PARAMS ((CORE_ADDR lhs, CORE_ADDR rhs));
  79
  80
  81 #ifndef min
  82 #define min(a, b) ((a) < (b) ? (a) : (b))
  83 #endif
  84 #ifndef max
  85 #define max(a, b) ((a) > (b) ? (a) : (b))
  86 #endif
  87
  88 /* Gdb does *lots* of string compares.  Use macros to speed them up by
  89    avoiding function calls if the first characters are not the same. */
  90
  91 #define STRCMP(a,b) (*(a) == *(b) ? strcmp ((a), (b)) : (int)*(a) - (int)*(b))
  92 #define STREQ(a,b) (*(a) == *(b) ? !strcmp ((a), (b)) : 0)
  93 #define STREQN(a,b,c) (*(a) == *(b) ? !strncmp ((a), (b), (c)) : 0)
  94
  95 /* The character GNU C++ uses to build identifiers that must be unique from
  96    the program's identifiers (such as $this and $$vptr).  */
  97 #define CPLUS_MARKER '$'        /* May be overridden to '.' for SysV */
  98
  99 /* Check if a character is one of the commonly used C++ marker characters.  */
 100 extern int is_cplus_marker PARAMS ((int));
 101
 102 /* use tui interface if non-zero */
 103 extern int tui_version;
 104
 105 #if defined(TUI)
 106 /* all invocations of TUIDO should have two sets of parens */
 107 #define TUIDO(x)        tuiDo x
 108 #else
 109 #define TUIDO(x)
 110 #endif
 111
 112 /* enable xdb commands if set */
 113 extern int xdb_commands;
 114
 115 /* enable dbx commands if set */
 116 extern int dbx_commands;
 117
 118 extern int quit_flag;
 119 extern int immediate_quit;
 120 extern int sevenbit_strings;
 121
 122 extern void quit PARAMS ((void));
 123
 124 #ifdef QUIT
 125 /* do twice to force compiler warning */
 126 #define QUIT_FIXME "FIXME"
 127 #define QUIT_FIXME "ignoring redefinition of QUIT"
 128 #else
 129 #define QUIT { \
 130   if (quit_flag) quit (); \
 131   if (interactive_hook) interactive_hook (); \
 132   PROGRESS (1); \
 133 }
 134 #endif
 135
 136 /* Command classes are top-level categories into which commands are broken
 137    down for "help" purposes.
 138    Notes on classes: class_alias is for alias commands which are not
 139    abbreviations of the original command.  class-pseudo is for commands
 140    which are not really commands nor help topics ("stop").  */
 141
 142 enum command_class
 143 {
 144   /* Special args to help_list */
 145   all_classes = -2, all_commands = -1,
 146   /* Classes of commands */
 147   no_class = -1, class_run = 0, class_vars, class_stack,
 148   class_files, class_support, class_info, class_breakpoint, class_trace,
 149   class_alias, class_obscure, class_user, class_maintenance,
 150   class_pseudo, class_tui, class_xdb
 151 };
 152
 153 /* Languages represented in the symbol table and elsewhere.
 154    This should probably be in language.h, but since enum's can't
 155    be forward declared to satisfy opaque references before their
 156    actual definition, needs to be here. */
 157
 158 enum language
 159 {
 160    language_unknown,            /* Language not known */
 161    language_auto,               /* Placeholder for automatic setting */
 162    language_c,                  /* C */
 163    language_cplus,              /* C++ */
 164    language_java,               /* Java */
 165    language_chill,              /* Chill */
 166    language_fortran,            /* Fortran */
 167    language_m2,                 /* Modula-2 */
 168    language_asm,                /* Assembly language */
 169    language_scm                 /* Scheme / Guile */
 170 };
 171
 172 enum precision_type
 173 {
 174   single_precision,
 175   double_precision,
 176   unspecified_precision
 177 };
 178
 179 /* the cleanup list records things that have to be undone
 180    if an error happens (descriptors to be closed, memory to be freed, etc.)
 181    Each link in the chain records a function to call and an
 182    argument to give it.
 183
 184    Use make_cleanup to add an element to the cleanup chain.
 185    Use do_cleanups to do all cleanup actions back to a given
 186    point in the chain.  Use discard_cleanups to remove cleanups
 187    from the chain back to a given point, not doing them.  */
 188
 189 struct cleanup
 190 {
 191   struct cleanup *next;
 192   void (*function) PARAMS ((PTR));
 193   PTR arg;
 194 };
 195
 196
 197 /* The ability to declare that a function never returns is useful, but
 198    not really required to compile GDB successfully, so the NORETURN and
 199    ATTR_NORETURN macros normally expand into nothing.  */
 200
 201 /* If compiling with older versions of GCC, a function may be declared
 202    "volatile" to indicate that it does not return.  */
 203
 204 #ifndef NORETURN
 205 # if defined(__GNUC__) \
 206      && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
 207 #  define NORETURN volatile
 208 # else
 209 #  define NORETURN /* nothing */
 210 # endif
 211 #endif
 212
 213 /* GCC 2.5 and later versions define a function attribute "noreturn",
 214    which is the preferred way to declare that a function never returns.
 215    However GCC 2.7 appears to be the first version in which this fully
 216    works everywhere we use it. */
 217
 218 #ifndef ATTR_NORETURN
 219 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 7
 220 #  define ATTR_NORETURN __attribute__ ((noreturn))
 221 # else
 222 #  define ATTR_NORETURN /* nothing */
 223 # endif
 224 #endif
 225
 226 #ifndef ATTR_FORMAT
 227 # if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 4 && defined (__ANSI_PROTOTYPES)
 228 #  define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
 229 # else
 230 #  define ATTR_FORMAT(type, x, y) /* nothing */
 231 # endif
 232 #endif
 233
 234 /* Needed for various prototypes */
 235
 236 #ifdef __STDC__
 237 struct symtab;
 238 struct breakpoint;
 239 #endif
 240
 241 /* From blockframe.c */
 242
 243 extern int inside_entry_func PARAMS ((CORE_ADDR));
 244
 245 extern int inside_entry_file PARAMS ((CORE_ADDR addr));
 246
 247 extern int inside_main_func PARAMS ((CORE_ADDR pc));
 248
 249 /* From ch-lang.c, for the moment. (FIXME) */
 250
 251 extern char *chill_demangle PARAMS ((const char *));
 252
 253 /* From utils.c */
 254
 255 extern void initialize_utils PARAMS ((void));
 256
 257 extern void notice_quit PARAMS ((void));
 258
 259 extern int strcmp_iw PARAMS ((const char *, const char *));
 260
 261 extern int subset_compare PARAMS ((char *, char *));
 262
 263 extern char *safe_strerror PARAMS ((int));
 264
 265 extern char *safe_strsignal PARAMS ((int));
 266
 267 extern void init_malloc PARAMS ((void *));
 268
 269 extern void request_quit PARAMS ((int));
 270
 271 extern void do_cleanups PARAMS ((struct cleanup *));
 272 extern void do_final_cleanups PARAMS ((struct cleanup *));
 273 extern void do_my_cleanups PARAMS ((struct cleanup **, struct cleanup *));
 274 extern void do_run_cleanups PARAMS ((struct cleanup *));
 275
 276 extern void discard_cleanups PARAMS ((struct cleanup *));
 277 extern void discard_final_cleanups PARAMS ((struct cleanup *));
 278 extern void discard_my_cleanups PARAMS ((struct cleanup **, struct cleanup *));
 279
 280 typedef void (*make_cleanup_func) PARAMS ((void *));
 281
 282 extern struct cleanup *make_cleanup PARAMS ((make_cleanup_func, void *));
 283
 284 extern struct cleanup *make_cleanup_freeargv PARAMS ((char **));
 285
 286 extern struct cleanup *make_final_cleanup PARAMS ((make_cleanup_func, void *));
 287
 288 extern struct cleanup *make_my_cleanup PARAMS ((struct cleanup **,
 289                                                 make_cleanup_func, void *));
 290
 291 extern struct cleanup *make_run_cleanup PARAMS ((make_cleanup_func, void *));
 292
 293 extern struct cleanup *save_cleanups PARAMS ((void));
 294 extern struct cleanup *save_final_cleanups PARAMS ((void));
 295 extern struct cleanup *save_my_cleanups PARAMS ((struct cleanup **));
 296
 297 extern void restore_cleanups PARAMS ((struct cleanup *));
 298 extern void restore_final_cleanups PARAMS ((struct cleanup *));
 299 extern void restore_my_cleanups PARAMS ((struct cleanup **, struct cleanup *));
 300
 301 extern void free_current_contents PARAMS ((char **));
 302
 303 extern void null_cleanup PARAMS ((PTR));
 304
 305 extern int myread PARAMS ((int, char *, int));
 306
 307 extern int query PARAMS((char *, ...))
 308      ATTR_FORMAT(printf, 1, 2);
 309
 310 #if !defined (USE_MMALLOC)
 311 extern PTR mmalloc PARAMS ((PTR, size_t));
 312 extern PTR mrealloc PARAMS ((PTR, PTR, size_t));
 313 extern void mfree PARAMS ((PTR, PTR));
 314 #endif
 315
 316 extern void init_page_info PARAMS ((void));
 317
 318 /* From demangle.c */
 319
 320 extern void set_demangling_style PARAMS ((char *));
 321
 322 /* From tm.h */
 323
 324 struct type;
 325 typedef int (use_struct_convention_fn) PARAMS ((int gcc_p, struct type *value_type));
 326 extern use_struct_convention_fn generic_use_struct_convention;
 327
 328 typedef unsigned char *(breakpoint_from_pc_fn) PARAMS ((CORE_ADDR *pcptr, int *lenptr));
 329
 330
 331 \f
 332 /* Annotation stuff.  */
 333
 334 extern int annotation_level; /* in stack.c */
 335 \f
 336 extern void begin_line PARAMS ((void));
 337
 338 extern void wrap_here PARAMS ((char *));
 339
 340 extern void reinitialize_more_filter PARAMS ((void));
 341
 342 /* new */
 343 enum streamtype
 344 {
 345   afile,
 346   astring
 347 };
 348
 349 /* new */
 350 struct tui_stream
 351 {
 352   int *ts_magic;
 353   enum streamtype ts_streamtype;
 354   FILE *ts_filestream;
 355   char *ts_strbuf;
 356   int ts_buflen;
 357 };
 358
 359 struct gdb_file;
 360 typedef struct gdb_file GDB_FILE; /* deprecated */
 361
 362 extern GDB_FILE *gdb_stdout;
 363 extern GDB_FILE *gdb_stderr;
 364
 365 #if defined(TUI)
 366 #include "tui.h"
 367 #include "tuiCommand.h"
 368 #include "tuiData.h"
 369 #include "tuiIO.h"
 370 #include "tuiLayout.h"
 371 #include "tuiWin.h"
 372 #endif
 373
 374 /* Create a new gdb_file with the specified methods. */
 375
 376 typedef void (gdb_file_flush_ftype) PARAMS ((struct gdb_file *stream));
 377 extern void set_gdb_file_flush PARAMS ((struct gdb_file *stream, gdb_file_flush_ftype *flush));
 378
 379 typedef void (gdb_file_fputs_ftype) PARAMS ((const char *, struct gdb_file *stream));
 380 extern void set_gdb_file_fputs PARAMS ((struct gdb_file *stream, gdb_file_fputs_ftype *fputs));
 381
 382 typedef int (gdb_file_isatty_ftype) PARAMS ((struct gdb_file *stream));
 383 extern void set_gdb_file_isatty PARAMS ((struct gdb_file *stream, gdb_file_isatty_ftype *isatty));
 384
 385 typedef void (gdb_file_delete_ftype) PARAMS ((struct gdb_file *stream));
 386 extern void set_gdb_file_data PARAMS ((struct gdb_file *stream, void *data, gdb_file_delete_ftype *delete));
 387
 388 extern struct gdb_file *gdb_file_new PARAMS ((void));
 389
 390 extern void gdb_file_delete PARAMS ((struct gdb_file *stream));
 391
 392 extern void *gdb_file_data PARAMS ((struct gdb_file *file));
 393
 394 /* Open the specified FILE as a gdb_file. */
 395 extern struct gdb_file *stdio_fileopen PARAMS ((FILE *));
 396 /* #if defined (TUI) */
 397 extern struct gdb_file *tui_fileopen PARAMS ((FILE *));
 398 /* #endif */
 399
 400 /* deprecated - use gdb_file_delete */
 401 extern void gdb_fclose PARAMS ((GDB_FILE **));
 402
 403 extern void gdb_flush PARAMS ((GDB_FILE *));
 404
 405 extern GDB_FILE *gdb_fopen PARAMS ((char * name, char * mode));
 406
 407 extern void fputs_filtered PARAMS ((const char *, GDB_FILE *));
 408
 409 extern void fputs_unfiltered PARAMS ((const char *, GDB_FILE *));
 410
 411 extern int fputc_filtered PARAMS ((int c, GDB_FILE *));
 412
 413 extern int fputc_unfiltered PARAMS ((int c, GDB_FILE *));
 414
 415 extern int putchar_unfiltered PARAMS ((int c));
 416
 417 extern void puts_filtered PARAMS ((const char *));
 418
 419 extern void puts_unfiltered PARAMS ((const char *));
 420
 421 extern void puts_debug PARAMS ((char *prefix, char *string, char *suffix));
 422
 423 extern void vprintf_filtered PARAMS ((const char *, va_list))
 424      ATTR_FORMAT(printf, 1, 0);
 425
 426 extern void vfprintf_filtered PARAMS ((GDB_FILE *, const char *, va_list))
 427      ATTR_FORMAT(printf, 2, 0);
 428
 429 extern void fprintf_filtered PARAMS ((GDB_FILE *, const char *, ...))
 430      ATTR_FORMAT(printf, 2, 3);
 431
 432 extern void fprintfi_filtered PARAMS ((int, GDB_FILE *, const char *, ...))
 433      ATTR_FORMAT(printf, 3, 4);
 434
 435 extern void printf_filtered PARAMS ((const char *, ...))
 436      ATTR_FORMAT(printf, 1, 2);
 437
 438 extern void printfi_filtered PARAMS ((int, const char *, ...))
 439      ATTR_FORMAT(printf, 2, 3);
 440
 441 extern void vprintf_unfiltered PARAMS ((const char *, va_list))
 442      ATTR_FORMAT(printf, 1, 0);
 443
 444 extern void vfprintf_unfiltered PARAMS ((GDB_FILE *, const char *, va_list))
 445      ATTR_FORMAT(printf, 2, 0);
 446
 447 extern void fprintf_unfiltered PARAMS ((GDB_FILE *, const char *, ...))
 448      ATTR_FORMAT(printf, 2, 3);
 449
 450 extern void printf_unfiltered PARAMS ((const char *, ...))
 451      ATTR_FORMAT(printf, 1, 2);
 452
 453 extern int gdb_file_isatty PARAMS ((GDB_FILE *));
 454
 455 /* #if defined (TUI) */
 456 extern GDB_FILE *gdb_file_init_astring PARAMS ((int));
 457 /* #endif */
 458
 459 extern void gdb_file_deallocate PARAMS ((GDB_FILE **));
 460
 461 /* #if defined (TUI) */
 462 extern char *gdb_file_get_strbuf PARAMS ((GDB_FILE *));
 463 /* #endif */
 464
 465 /* #if defined (TUI) */
 466 extern void gdb_file_adjust_strbuf PARAMS ((int, GDB_FILE *));
 467 /* #endif */
 468
 469 extern void print_spaces PARAMS ((int, GDB_FILE *));
 470
 471 extern void print_spaces_filtered PARAMS ((int, GDB_FILE *));
 472
 473 extern char *n_spaces PARAMS ((int));
 474
 475 extern void gdb_printchar PARAMS ((int, GDB_FILE *, int));
 476
 477 extern void gdb_print_address PARAMS ((void *, GDB_FILE *));
 478
 479 typedef bfd_vma t_addr;
 480 typedef bfd_vma t_reg;
 481 extern char* paddr PARAMS ((t_addr addr));
 482
 483 extern char* preg PARAMS ((t_reg reg));
 484
 485 extern char* paddr_nz PARAMS ((t_addr addr));
 486
 487 extern char* preg_nz PARAMS ((t_reg reg));
 488
 489 extern void fprintf_symbol_filtered PARAMS ((GDB_FILE *, char *,
 490                                              enum language, int));
 491
 492 extern NORETURN void perror_with_name PARAMS ((char *)) ATTR_NORETURN;
 493
 494 extern void print_sys_errmsg PARAMS ((char *, int));
 495
 496 /* From regex.c or libc.  BSD 4.4 declares this with the argument type as
 497    "const char *" in unistd.h, so we can't declare the argument
 498    as "char *".  */
 499
 500 extern char *re_comp PARAMS ((const char *));
 501
 502 /* From symfile.c */
 503
 504 extern void symbol_file_command PARAMS ((char *, int));
 505
 506 /* From top.c */
 507
 508 extern char *skip_quoted PARAMS ((char *));
 509
 510 extern char *gdb_readline PARAMS ((char *));
 511
 512 extern char *command_line_input PARAMS ((char *, int, char *));
 513
 514 extern void print_prompt PARAMS ((void));
 515
 516 extern int input_from_terminal_p PARAMS ((void));
 517
 518 extern int info_verbose;
 519
 520 /* From printcmd.c */
 521
 522 extern void set_next_address PARAMS ((CORE_ADDR));
 523
 524 extern void print_address_symbolic PARAMS ((CORE_ADDR, GDB_FILE *, int,
 525                                             char *));
 526
 527 extern void print_address_numeric PARAMS ((CORE_ADDR, int, GDB_FILE *));
 528
 529 extern void print_address PARAMS ((CORE_ADDR, GDB_FILE *));
 530
 531 /* From source.c */
 532
 533 extern int openp PARAMS ((char *, int, char *, int, int, char **));
 534
 535 extern int source_full_path_of PARAMS ((char *, char **));
 536
 537 extern void mod_path PARAMS ((char *, char **));
 538
 539 extern void directory_command PARAMS ((char *, int));
 540
 541 extern void init_source_path PARAMS ((void));
 542
 543 extern char *symtab_to_filename PARAMS ((struct symtab *));
 544
 545 /* From findvar.c */
 546
 547 extern int read_relative_register_raw_bytes PARAMS ((int, char *));
 548
 549 #if __STDC__
 550 enum lval_type;
 551 struct frame_info;
 552 #endif
 553 void default_get_saved_register PARAMS ((char *raw_buffer, int *optimized,
 554                                          CORE_ADDR *addrp,
 555                                          struct frame_info *frame, int regnum,
 556                                          enum lval_type *lval));
 557
 558 /* From readline (but not in any readline .h files).  */
 559
 560 extern char *tilde_expand PARAMS ((char *));
 561
 562 /* Control types for commands */
 563
 564 enum misc_command_type
 565 {
 566   ok_command,
 567   end_command,
 568   else_command,
 569   nop_command
 570 };
 571
 572 enum command_control_type
 573 {
 574   simple_control,
 575   break_control,
 576   continue_control,
 577   while_control,
 578   if_control,
 579   invalid_control
 580 };
 581
 582 /* Structure for saved commands lines
 583    (for breakpoints, defined commands, etc).  */
 584
 585 struct command_line
 586 {
 587   struct command_line *next;
 588   char *line;
 589   enum command_control_type control_type;
 590   int body_count;
 591   struct command_line **body_list;
 592 };
 593
 594 extern struct command_line *read_command_lines PARAMS ((char *, int));
 595
 596 extern void free_command_lines PARAMS ((struct command_line **));
 597
 598 /* String containing the current directory (what getwd would return).  */
 599
 600 extern char *current_directory;
 601
 602 /* Default radixes for input and output.  Only some values supported.  */
 603 extern unsigned input_radix;
 604 extern unsigned output_radix;
 605
 606 /* Possibilities for prettyprint parameters to routines which print
 607    things.  Like enum language, this should be in value.h, but needs
 608    to be here for the same reason.  FIXME:  If we can eliminate this
 609    as an arg to LA_VAL_PRINT, then we can probably move it back to
 610    value.h. */
 611
 612 enum val_prettyprint
 613 {
 614   Val_no_prettyprint = 0,
 615   Val_prettyprint,
 616   /* Use the default setting which the user has specified.  */
 617   Val_pretty_default
 618 };
 619
 620 \f
 621 /* Host machine definition.  This will be a symlink to one of the
 622    xm-*.h files, built by the `configure' script.  */
 623
 624 #include "xm.h"
 625
 626 /* Native machine support.  This will be a symlink to one of the
 627    nm-*.h files, built by the `configure' script.  */
 628
 629 #include "nm.h"
 630
 631 /* Target machine definition.  This will be a symlink to one of the
 632    tm-*.h files, built by the `configure' script.  */
 633
 634 #include "tm.h"
 635
 636 /* If the xm.h file did not define the mode string used to open the
 637    files, assume that binary files are opened the same way as text
 638    files */
 639 #ifndef FOPEN_RB
 640 #include "fopen-same.h"
 641 #endif
 642
 643 /* Microsoft C can't deal with const pointers */
 644
 645 #ifdef _MSC_VER
 646 #define CONST_PTR
 647 #else
 648 #define CONST_PTR const
 649 #endif
 650
 651 /*
 652  * Allow things in gdb to be declared "volatile".  If compiling ANSI, it
 653  * just works.  If compiling with gcc but non-ansi, redefine to __volatile__.
 654  * If non-ansi, non-gcc, then eliminate "volatile" entirely, making those
 655  * objects be read-write rather than read-only.
 656  */
 657
 658 #ifndef volatile
 659 #ifndef __STDC__
 660 # ifdef __GNUC__
 661 #  define volatile __volatile__
 662 # else
 663 #  define volatile /*nothing*/
 664 # endif /* GNUC */
 665 #endif /* STDC */
 666 #endif /* volatile */
 667
 668 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
 669    FIXME: Assumes 2's complement arithmetic */
 670
 671 #if !defined (UINT_MAX)
 672 #define UINT_MAX ((unsigned int)(~0))           /* 0xFFFFFFFF for 32-bits */
 673 #endif
 674
 675 #if !defined (INT_MAX)
 676 #define INT_MAX ((int)(UINT_MAX >> 1))          /* 0x7FFFFFFF for 32-bits */
 677 #endif
 678
 679 #if !defined (INT_MIN)
 680 #define INT_MIN ((int)((int) ~0 ^ INT_MAX))     /* 0x80000000 for 32-bits */
 681 #endif
 682
 683 #if !defined (ULONG_MAX)
 684 #define ULONG_MAX ((unsigned long)(~0L))        /* 0xFFFFFFFF for 32-bits */
 685 #endif
 686
 687 #if !defined (LONG_MAX)
 688 #define LONG_MAX ((long)(ULONG_MAX >> 1))       /* 0x7FFFFFFF for 32-bits */
 689 #endif
 690
 691 #ifndef LONGEST
 692
 693 #ifdef BFD64
 694
 695 /* This is to make sure that LONGEST is at least as big as CORE_ADDR.  */
 696
 697 #define LONGEST BFD_HOST_64_BIT
 698 #define ULONGEST BFD_HOST_U_64_BIT
 699
 700 #else /* No BFD64 */
 701
 702 #  ifdef CC_HAS_LONG_LONG
 703 #    define LONGEST long long
 704 #    define ULONGEST unsigned long long
 705 #  else
 706 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
 707    (e.g. i386-windows) so try it.  */
 708 #    ifdef BFD_HOST_64_BIT
 709 #      define LONGEST BFD_HOST_64_BIT
 710 #      define ULONGEST BFD_HOST_U_64_BIT
 711 #    else
 712 #      define LONGEST long
 713 #      define ULONGEST unsigned long
 714 #    endif
 715 #  endif
 716
 717 #endif /* No BFD64 */
 718
 719 #endif /* ! LONGEST */
 720
 721 /* Convert a LONGEST to an int.  This is used in contexts (e.g. number of
 722    arguments to a function, number in a value history, register number, etc.)
 723    where the value must not be larger than can fit in an int.  */
 724
 725 extern int longest_to_int PARAMS ((LONGEST));
 726
 727 /* Assorted functions we can declare, now that const and volatile are
 728    defined.  */
 729
 730 extern char *savestring PARAMS ((const char *, int));
 731
 732 extern char *msavestring PARAMS ((void *, const char *, int));
 733
 734 extern char *strsave PARAMS ((const char *));
 735
 736 extern char *mstrsave PARAMS ((void *, const char *));
 737
 738 #ifdef _MSC_VER /* FIXME; was long, but this causes compile errors in msvc if already defined */
 739 extern PTR xmmalloc PARAMS ((PTR, size_t));
 740
 741 extern PTR xmrealloc PARAMS ((PTR, PTR, size_t));
 742 #else
 743 extern PTR xmmalloc PARAMS ((PTR, long));
 744
 745 extern PTR xmrealloc PARAMS ((PTR, PTR, long));
 746 #endif
 747
 748 extern int parse_escape PARAMS ((char **));
 749
 750 /* compat - handle old targets that just define REGISTER_NAMES */
 751 #ifndef REGISTER_NAME
 752 extern char *gdb_register_names[];
 753 #define REGISTER_NAME(i) gdb_register_names[i]
 754 #endif
 755
 756 /* Message to be printed before the error message, when an error occurs.  */
 757
 758 extern char *error_pre_print;
 759
 760 /* Message to be printed before the error message, when an error occurs.  */
 761
 762 extern char *quit_pre_print;
 763
 764 /* Message to be printed before the warning message, when a warning occurs.  */
 765
 766 extern char *warning_pre_print;
 767
 768 extern NORETURN void error PARAMS((const char *, ...)) ATTR_NORETURN;
 769
 770 extern void error_begin PARAMS ((void));
 771
 772 extern NORETURN void fatal PARAMS((char *, ...)) ATTR_NORETURN;
 773
 774 extern NORETURN void nomem PARAMS ((long)) ATTR_NORETURN;
 775
 776 /* Reasons for calling return_to_top_level.  */
 777 enum return_reason {
 778   /* User interrupt.  */
 779   RETURN_QUIT,
 780
 781   /* Any other error.  */
 782   RETURN_ERROR
 783 };
 784
 785 #define RETURN_MASK_QUIT (1 << (int)RETURN_QUIT)
 786 #define RETURN_MASK_ERROR (1 << (int)RETURN_ERROR)
 787 #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
 788 typedef int return_mask;
 789
 790 extern NORETURN void
 791 return_to_top_level PARAMS ((enum return_reason)) ATTR_NORETURN;
 792
 793 typedef int (catch_errors_ftype) PARAMS ((PTR));
 794 extern int catch_errors PARAMS ((catch_errors_ftype *, PTR, char *, return_mask));
 795
 796 extern void warning_begin PARAMS ((void));
 797
 798 extern void warning PARAMS ((const char *, ...))
 799      ATTR_FORMAT(printf, 1, 2);
 800
 801 /* Global functions from other, non-gdb GNU thingies.
 802    Libiberty thingies are no longer declared here.  We include libiberty.h
 803    above, instead.  */
 804
 805 #ifndef GETENV_PROVIDED
 806 extern char *getenv PARAMS ((const char *));
 807 #endif
 808
 809 /* From other system libraries */
 810
 811 #ifdef HAVE_STDDEF_H
 812 #include <stddef.h>
 813 #endif
 814
 815 #ifdef HAVE_STDLIB_H
 816 #if defined(_MSC_VER) && !defined(__cplusplus)
 817 /* msvc defines these in stdlib.h for c code */
 818 #undef min
 819 #undef max
 820 #endif
 821 #include <stdlib.h>
 822 #endif
 823 #ifndef min
 824 #define min(a, b) ((a) < (b) ? (a) : (b))
 825 #endif
 826 #ifndef max
 827 #define max(a, b) ((a) > (b) ? (a) : (b))
 828 #endif
 829
 830
 831 /* We take the address of fclose later, but some stdio's forget
 832    to declare this.  We can't always declare it since there's
 833    no way to declare the parameters without upsetting some compiler
 834    somewhere. */
 835
 836 #ifndef FCLOSE_PROVIDED
 837 extern int fclose PARAMS ((FILE *));
 838 #endif
 839
 840 #ifndef atof
 841 extern double atof PARAMS ((const char *));     /* X3.159-1989  4.10.1.1 */
 842 #endif
 843
 844 #ifndef MALLOC_INCOMPATIBLE
 845
 846 #ifdef NEED_DECLARATION_MALLOC
 847 extern PTR malloc ();
 848 #endif
 849
 850 #ifdef NEED_DECLARATION_REALLOC
 851 extern PTR realloc ();
 852 #endif
 853
 854 #ifdef NEED_DECLARATION_FREE
 855 extern void free ();
 856 #endif
 857
 858 #endif /* MALLOC_INCOMPATIBLE */
 859
 860 /* Various possibilities for alloca.  */
 861 #ifndef alloca
 862 # ifdef __GNUC__
 863 #  define alloca __builtin_alloca
 864 # else /* Not GNU C */
 865 #  ifdef HAVE_ALLOCA_H
 866 #   include <alloca.h>
 867 #  else
 868 #   ifdef _AIX
 869  #pragma alloca
 870 #   else
 871
 872 /* We need to be careful not to declare this in a way which conflicts with
 873    bison.  Bison never declares it as char *, but under various circumstances
 874    (like __hpux) we need to use void *.  */
 875 #    if defined (__STDC__) || defined (__hpux)
 876    extern void *alloca ();
 877 #    else /* Don't use void *.  */
 878    extern char *alloca ();
 879 #    endif /* Don't use void *.  */
 880 #   endif /* Not _AIX */
 881 #  endif /* Not HAVE_ALLOCA_H */
 882 # endif /* Not GNU C */
 883 #endif /* alloca not defined */
 884
 885 /* HOST_BYTE_ORDER must be defined to one of these.  */
 886
 887 #ifdef HAVE_ENDIAN_H
 888 #include <endian.h>
 889 #endif
 890
 891 #if !defined (BIG_ENDIAN)
 892 #define BIG_ENDIAN 4321
 893 #endif
 894
 895 #if !defined (LITTLE_ENDIAN)
 896 #define LITTLE_ENDIAN 1234
 897 #endif
 898
 899 /* Dynamic target-system-dependent parameters for GDB. */
 900 #include "gdbarch.h"
 901
 902 /* Static target-system-dependent parameters for GDB. */
 903
 904 /* Number of bits in a char or unsigned char for the target machine.
 905    Just like CHAR_BIT in <limits.h> but describes the target machine.  */
 906 #if !defined (TARGET_CHAR_BIT)
 907 #define TARGET_CHAR_BIT 8
 908 #endif
 909
 910 /* Number of bits in a short or unsigned short for the target machine. */
 911 #if !defined (TARGET_SHORT_BIT)
 912 #define TARGET_SHORT_BIT (2 * TARGET_CHAR_BIT)
 913 #endif
 914
 915 /* Number of bits in an int or unsigned int for the target machine. */
 916 #if !defined (TARGET_INT_BIT)
 917 #define TARGET_INT_BIT (4 * TARGET_CHAR_BIT)
 918 #endif
 919
 920 /* Number of bits in a long or unsigned long for the target machine. */
 921 #if !defined (TARGET_LONG_BIT)
 922 #define TARGET_LONG_BIT (4 * TARGET_CHAR_BIT)
 923 #endif
 924
 925 /* Number of bits in a long long or unsigned long long for the target machine. */
 926 #if !defined (TARGET_LONG_LONG_BIT)
 927 #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
 928 #endif
 929
 930 /* Number of bits in a float for the target machine. */
 931 #if !defined (TARGET_FLOAT_BIT)
 932 #define TARGET_FLOAT_BIT (4 * TARGET_CHAR_BIT)
 933 #endif
 934
 935 /* Number of bits in a double for the target machine. */
 936 #if !defined (TARGET_DOUBLE_BIT)
 937 #define TARGET_DOUBLE_BIT (8 * TARGET_CHAR_BIT)
 938 #endif
 939
 940 /* Number of bits in a long double for the target machine.  */
 941 #if !defined (TARGET_LONG_DOUBLE_BIT)
 942 #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
 943 #endif
 944
 945 /* Number of bits in a pointer for the target machine */
 946 #if !defined (TARGET_PTR_BIT)
 947 #define TARGET_PTR_BIT TARGET_INT_BIT
 948 #endif
 949
 950 /* If we picked up a copy of CHAR_BIT from a configuration file
 951    (which may get it by including <limits.h>) then use it to set
 952    the number of bits in a host char.  If not, use the same size
 953    as the target. */
 954
 955 #if defined (CHAR_BIT)
 956 #define HOST_CHAR_BIT CHAR_BIT
 957 #else
 958 #define HOST_CHAR_BIT TARGET_CHAR_BIT
 959 #endif
 960
 961 /* The bit byte-order has to do just with numbering of bits in
 962    debugging symbols and such.  Conceptually, it's quite separate
 963    from byte/word byte order.  */
 964
 965 #if !defined (BITS_BIG_ENDIAN)
 966 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BIG_ENDIAN)
 967 #endif
 968
 969 /* In findvar.c.  */
 970
 971 extern LONGEST extract_signed_integer PARAMS ((void *, int));
 972
 973 extern ULONGEST extract_unsigned_integer PARAMS ((void *, int));
 974
 975 extern int extract_long_unsigned_integer PARAMS ((void *, int, LONGEST *));
 976
 977 extern CORE_ADDR extract_address PARAMS ((void *, int));
 978
 979 extern void store_signed_integer PARAMS ((PTR, int, LONGEST));
 980
 981 extern void store_unsigned_integer PARAMS ((PTR, int, ULONGEST));
 982
 983 extern void store_address PARAMS ((PTR, int, LONGEST));
 984
 985 /* Setup definitions for host and target floating point formats.  We need to
 986    consider the format for `float', `double', and `long double' for both target
 987    and host.  We need to do this so that we know what kind of conversions need
 988    to be done when converting target numbers to and from the hosts DOUBLEST
 989    data type.  */
 990
 991 /* This is used to indicate that we don't know the format of the floating point
 992    number.  Typically, this is useful for native ports, where the actual format
 993    is irrelevant, since no conversions will be taking place.  */
 994
 995 extern const struct floatformat floatformat_unknown;
 996
 997 #if HOST_BYTE_ORDER == BIG_ENDIAN
 998 #  ifndef HOST_FLOAT_FORMAT
 999 #    define HOST_FLOAT_FORMAT &floatformat_ieee_single_big
1000 #  endif
1001 #  ifndef HOST_DOUBLE_FORMAT
1002 #    define HOST_DOUBLE_FORMAT &floatformat_ieee_double_big
1003 #  endif
1004 #else                           /* LITTLE_ENDIAN */
1005 #  ifndef HOST_FLOAT_FORMAT
1006 #    define HOST_FLOAT_FORMAT &floatformat_ieee_single_little
1007 #  endif
1008 #  ifndef HOST_DOUBLE_FORMAT
1009 #    define HOST_DOUBLE_FORMAT &floatformat_ieee_double_little
1010 #  endif
1011 #endif
1012
1013 #ifndef HOST_LONG_DOUBLE_FORMAT
1014 #define HOST_LONG_DOUBLE_FORMAT &floatformat_unknown
1015 #endif
1016
1017 #ifndef TARGET_FLOAT_FORMAT
1018 #define TARGET_FLOAT_FORMAT (TARGET_BYTE_ORDER == BIG_ENDIAN \
1019                              ? &floatformat_ieee_single_big \
1020                              : &floatformat_ieee_single_little)
1021 #endif
1022 #ifndef TARGET_DOUBLE_FORMAT
1023 #define TARGET_DOUBLE_FORMAT (TARGET_BYTE_ORDER == BIG_ENDIAN \
1024                               ? &floatformat_ieee_double_big \
1025                               : &floatformat_ieee_double_little)
1026 #endif
1027
1028 #ifndef TARGET_LONG_DOUBLE_FORMAT
1029 #  define TARGET_LONG_DOUBLE_FORMAT &floatformat_unknown
1030 #endif
1031
1032 /* Use `long double' if the host compiler supports it.  (Note that this is not
1033    necessarily any longer than `double'.  On SunOS/gcc, it's the same as
1034    double.)  This is necessary because GDB internally converts all floating
1035    point values to the widest type supported by the host.
1036
1037    There are problems however, when the target `long double' is longer than the
1038    host's `long double'.  In general, we'll probably reduce the precision of
1039    any such values and print a warning.  */
1040
1041 #ifdef HAVE_LONG_DOUBLE
1042 typedef long double DOUBLEST;
1043 #else
1044 typedef double DOUBLEST;
1045 #endif
1046
1047 extern void floatformat_to_doublest PARAMS ((const struct floatformat *,
1048                                              char *, DOUBLEST *));
1049 extern void floatformat_from_doublest PARAMS ((const struct floatformat *,
1050                                                DOUBLEST *, char *));
1051 extern DOUBLEST extract_floating PARAMS ((void *, int));
1052
1053 extern void store_floating PARAMS ((void *, int, DOUBLEST));
1054 \f
1055 /* On some machines there are bits in addresses which are not really
1056    part of the address, but are used by the kernel, the hardware, etc.
1057    for special purposes.  ADDR_BITS_REMOVE takes out any such bits
1058    so we get a "real" address such as one would find in a symbol
1059    table.  This is used only for addresses of instructions, and even then
1060    I'm not sure it's used in all contexts.  It exists to deal with there
1061    being a few stray bits in the PC which would mislead us, not as some sort
1062    of generic thing to handle alignment or segmentation (it's possible it
1063    should be in TARGET_READ_PC instead). */
1064 #if !defined (ADDR_BITS_REMOVE)
1065 #define ADDR_BITS_REMOVE(addr) (addr)
1066 #endif /* No ADDR_BITS_REMOVE.  */
1067
1068 /* From valops.c */
1069
1070 extern CORE_ADDR push_bytes PARAMS ((CORE_ADDR, char *, int));
1071
1072 extern CORE_ADDR push_word PARAMS ((CORE_ADDR, ULONGEST));
1073
1074 extern int watchdog;
1075
1076 /* Hooks for alternate command interfaces.  */
1077
1078 #ifdef __STDC__
1079 struct target_waitstatus;
1080 struct cmd_list_element;
1081 #endif
1082
1083 extern void (*async_hook) PARAMS ((void));
1084 extern void (*init_ui_hook) PARAMS ((char *argv0));
1085 extern void (*command_loop_hook) PARAMS ((void));
1086 extern void (*fputs_unfiltered_hook) PARAMS ((const char *linebuffer,
1087                                               GDB_FILE *stream));
1088 extern void (*print_frame_info_listing_hook) PARAMS ((struct symtab *s,
1089                                                       int line, int stopline,
1090                                                       int noerror));
1091 extern struct frame_info *parse_frame_specification PARAMS ((char *frame_exp));
1092 extern int  (*query_hook) PARAMS ((const char *, va_list));
1093 extern void (*warning_hook) PARAMS ((const char *, va_list));
1094 extern void (*flush_hook) PARAMS ((GDB_FILE *stream));
1095 extern void (*create_breakpoint_hook) PARAMS ((struct breakpoint *b));
1096 extern void (*delete_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
1097 extern void (*modify_breakpoint_hook) PARAMS ((struct breakpoint *bpt));
1098 extern void (*target_output_hook) PARAMS ((char *));
1099 extern void (*interactive_hook) PARAMS ((void));
1100 extern void (*registers_changed_hook) PARAMS ((void));
1101 extern void (*readline_begin_hook) PARAMS ((char *, ...));
1102 extern char * (*readline_hook) PARAMS ((char *));
1103 extern void (*readline_end_hook) PARAMS ((void));
1104 extern void (*register_changed_hook) PARAMS ((int regno));
1105 extern void (*memory_changed_hook) PARAMS ((CORE_ADDR addr, int len));
1106 extern void (*context_hook) PARAMS ((int));
1107 extern int (*target_wait_hook) PARAMS ((int pid,
1108                                         struct target_waitstatus *status));
1109
1110 extern void (*call_command_hook) PARAMS ((struct cmd_list_element *c,
1111                                           char *cmd, int from_tty));
1112
1113 extern NORETURN void (*error_hook) PARAMS ((void)) ATTR_NORETURN;
1114
1115 extern void (*error_begin_hook) PARAMS ((void));
1116
1117
1118 /* Inhibit window interface if non-zero. */
1119
1120 extern int use_windows;
1121
1122 /* Symbolic definitions of filename-related things.  */
1123 /* FIXME, this doesn't work very well if host and executable
1124    filesystems conventions are different.  */
1125
1126 #ifndef DIRNAME_SEPARATOR
1127 #define DIRNAME_SEPARATOR ':'
1128 #endif
1129
1130 #ifndef SLASH_P
1131 #if defined(__GO32__)||defined(_WIN32)
1132 #define SLASH_P(X) ((X)=='\\')
1133 #else
1134 #define SLASH_P(X) ((X)=='/')
1135 #endif
1136 #endif
1137
1138 #ifndef SLASH_CHAR
1139 #if defined(__GO32__)||defined(_WIN32)
1140 #define SLASH_CHAR '\\'
1141 #else
1142 #define SLASH_CHAR '/'
1143 #endif
1144 #endif
1145
1146 #ifndef SLASH_STRING
1147 #if defined(__GO32__)||defined(_WIN32)
1148 #define SLASH_STRING "\\"
1149 #else
1150 #define SLASH_STRING "/"
1151 #endif
1152 #endif
1153
1154 #ifndef ROOTED_P
1155 #define ROOTED_P(X) (SLASH_P((X)[0]))
1156 #endif
1157
1158 /* On some systems, PIDGET is defined to extract the inferior pid from
1159    an internal pid that has the thread id and pid in seperate bit
1160    fields.  If not defined, then just use the entire internal pid as
1161    the actual pid. */
1162
1163 #ifndef PIDGET
1164 #define PIDGET(pid) (pid)
1165 #endif
1166
1167 /* If under Cygwin, provide backwards compatibility with older
1168    Cygwin compilers that don't define the current cpp define. */
1169 #ifdef __CYGWIN32__
1170 #ifndef __CYGWIN__
1171 #define __CYGWIN__
1172 #endif
1173 #endif
1174
1175 #endif /* #ifndef DEFS_H */