gdb/defs.h

   1 /* *INDENT-OFF* */ /* ATTR_FORMAT confuses indent, avoid running it for now */
   2 /* Basic, host-specific, and target-specific definitions for GDB.
   3    Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
   4    1997, 1998, 1999, 2000, 2001
   5    Free Software Foundation, Inc.
   6
   7    This file is part of GDB.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 59 Temple Place - Suite 330,
  22    Boston, MA 02111-1307, USA.  */
  23
  24 #ifndef DEFS_H
  25 #define DEFS_H
  26
  27 #include "config.h"             /* Generated by configure */
  28 #include <stdio.h>
  29 #include <errno.h>              /* System call error return status */
  30 #include <limits.h>
  31
  32 #ifdef HAVE_STDDEF_H
  33 #include <stddef.h>
  34 #else
  35 #include <sys/types.h>          /* for size_t */
  36 #endif
  37
  38 #ifdef HAVE_UNISTD_H
  39 #include <unistd.h>
  40 #endif
  41
  42 /* Just in case they're not defined in stdio.h. */
  43
  44 #ifndef SEEK_SET
  45 #define SEEK_SET 0
  46 #endif
  47 #ifndef SEEK_CUR
  48 #define SEEK_CUR 1
  49 #endif
  50
  51 /* First include ansidecl.h so we can use the various macro definitions
  52    here and in all subsequent file inclusions.  */
  53
  54 #include "ansidecl.h"
  55
  56 #include <stdarg.h>             /* for va_list */
  57
  58 #include "libiberty.h"
  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
  70 /* The target is partially multi-arched.  Both "tm.h" and the
  71    multi-arch vector provide definitions.  "tm.h" normally overrides
  72    the multi-arch vector (but there are a few exceptions).  */
  73
  74 #define GDB_MULTI_ARCH_PARTIAL 1
  75
  76 /* The target is partially multi-arched. Both the multi-arch vector
  77    and "tm.h" provide definitions. "tm.h" cannot override a definition
  78    provided by the multi-arch vector.  It is detected as a compilation
  79    error.
  80
  81    This setting is only useful during a multi-arch conversion. */
  82
  83 #define GDB_MULTI_ARCH_TM 2
  84
  85 /* The target is pure multi-arch.  The MULTI-ARCH vector provides all
  86    definitions.  "tm.h" is linked to an empty file. */
  87
  88 #define GDB_MULTI_ARCH_PURE 3
  89
  90
  91
  92 /* An address in the program being debugged.  Host byte order.  Rather
  93    than duplicate all the logic in BFD which figures out what type
  94    this is (long, long long, etc.) and whether it needs to be 64
  95    bits (the host/target interactions are subtle), we just use
  96    bfd_vma.  */
  97
  98 typedef bfd_vma CORE_ADDR;
  99
 100 /* This is to make sure that LONGEST is at least as big as CORE_ADDR.  */
 101
 102 #ifndef LONGEST
 103
 104 #ifdef BFD64
 105
 106 #define LONGEST BFD_HOST_64_BIT
 107 #define ULONGEST BFD_HOST_U_64_BIT
 108
 109 #else /* No BFD64 */
 110
 111 #ifdef CC_HAS_LONG_LONG
 112 #define LONGEST long long
 113 #define ULONGEST unsigned long long
 114 #else
 115 #ifdef BFD_HOST_64_BIT
 116 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
 117    (e.g. i386-windows) so try it.  */
 118 #define LONGEST BFD_HOST_64_BIT
 119 #define ULONGEST BFD_HOST_U_64_BIT
 120 #else
 121 #define LONGEST long
 122 #define ULONGEST unsigned long
 123 #endif
 124 #endif
 125
 126 #endif /* No BFD64 */
 127
 128 #endif /* ! LONGEST */
 129
 130 #ifndef min
 131 #define min(a, b) ((a) < (b) ? (a) : (b))
 132 #endif
 133 #ifndef max
 134 #define max(a, b) ((a) > (b) ? (a) : (b))
 135 #endif
 136
 137 /* Macros to do string compares.
 138
 139    NOTE: cagney/2000-03-14:
 140
 141    While old code can continue to refer to these macros, new code is
 142    probably better off using strcmp() directly vis: ``strcmp() == 0''
 143    and ``strcmp() != 0''.
 144
 145    This is because modern compilers can directly inline strcmp()
 146    making the original justification for these macros - avoid function
 147    call overhead by pre-testing the first characters
 148    (``*X==*Y?...:0'') - redundant.
 149
 150    ``Even if [...] testing the first character does have a modest
 151    performance improvement, I'd rather that whenever a performance
 152    issue is found that we spend the effort on algorithmic
 153    optimizations than micro-optimizing.'' J.T. */
 154
 155 #define STREQ(a,b) (*(a) == *(b) ? !strcmp ((a), (b)) : 0)
 156 #define STREQN(a,b,c) (*(a) == *(b) ? !strncmp ((a), (b), (c)) : 0)
 157
 158 /* The character GNU C++ uses to build identifiers that must be unique from
 159    the program's identifiers (such as $this and $$vptr).  */
 160 #define CPLUS_MARKER '$'        /* May be overridden to '.' for SysV */
 161
 162 /* Check if a character is one of the commonly used C++ marker characters.  */
 163 extern int is_cplus_marker (int);
 164
 165 /* use tui interface if non-zero */
 166 extern int tui_version;
 167
 168 /* enable xdb commands if set */
 169 extern int xdb_commands;
 170
 171 /* enable dbx commands if set */
 172 extern int dbx_commands;
 173
 174 extern int quit_flag;
 175 extern int immediate_quit;
 176 extern int sevenbit_strings;
 177
 178 extern void quit (void);
 179
 180 /* FIXME: cagney/2000-03-13: It has been suggested that the peformance
 181    benefits of having a ``QUIT'' macro rather than a function are
 182    marginal.  If the overhead of a QUIT function call is proving
 183    significant then its calling frequency should probably be reduced
 184    [kingdon].  A profile analyzing the current situtation is
 185    needed. */
 186
 187 #ifdef QUIT
 188 /* do twice to force compiler warning */
 189 #define QUIT_FIXME "FIXME"
 190 #define QUIT_FIXME "ignoring redefinition of QUIT"
 191 #else
 192 #define QUIT { \
 193   if (quit_flag) quit (); \
 194   if (interactive_hook) interactive_hook (); \
 195   PROGRESS (1); \
 196 }
 197 #endif
 198
 199 /* Languages represented in the symbol table and elsewhere.
 200    This should probably be in language.h, but since enum's can't
 201    be forward declared to satisfy opaque references before their
 202    actual definition, needs to be here. */
 203
 204 enum language
 205   {
 206     language_unknown,           /* Language not known */
 207     language_auto,              /* Placeholder for automatic setting */
 208     language_c,                 /* C */
 209     language_cplus,             /* C++ */
 210     language_java,              /* Java */
 211     language_chill,             /* Chill */
 212     language_fortran,           /* Fortran */
 213     language_m2,                /* Modula-2 */
 214     language_asm,               /* Assembly language */
 215     language_scm,               /* Scheme / Guile */
 216     language_pascal             /* Pascal */
 217   };
 218
 219 enum precision_type
 220   {
 221     single_precision,
 222     double_precision,
 223     unspecified_precision
 224   };
 225
 226 /* The numbering of these signals is chosen to match traditional unix
 227    signals (insofar as various unices use the same numbers, anyway).
 228    It is also the numbering of the GDB remote protocol.  Other remote
 229    protocols, if they use a different numbering, should make sure to
 230    translate appropriately.
 231
 232    Since these numbers have actually made it out into other software
 233    (stubs, etc.), you mustn't disturb the assigned numbering.  If you
 234    need to add new signals here, add them to the end of the explicitly
 235    numbered signals.
 236
 237    This is based strongly on Unix/POSIX signals for several reasons:
 238    (1) This set of signals represents a widely-accepted attempt to
 239    represent events of this sort in a portable fashion, (2) we want a
 240    signal to make it from wait to child_wait to the user intact, (3) many
 241    remote protocols use a similar encoding.  However, it is
 242    recognized that this set of signals has limitations (such as not
 243    distinguishing between various kinds of SIGSEGV, or not
 244    distinguishing hitting a breakpoint from finishing a single step).
 245    So in the future we may get around this either by adding additional
 246    signals for breakpoint, single-step, etc., or by adding signal
 247    codes; the latter seems more in the spirit of what BSD, System V,
 248    etc. are doing to address these issues.  */
 249
 250 /* For an explanation of what each signal means, see
 251    target_signal_to_string.  */
 252
 253 enum target_signal
 254   {
 255     /* Used some places (e.g. stop_signal) to record the concept that
 256        there is no signal.  */
 257     TARGET_SIGNAL_0 = 0,
 258     TARGET_SIGNAL_FIRST = 0,
 259     TARGET_SIGNAL_HUP = 1,
 260     TARGET_SIGNAL_INT = 2,
 261     TARGET_SIGNAL_QUIT = 3,
 262     TARGET_SIGNAL_ILL = 4,
 263     TARGET_SIGNAL_TRAP = 5,
 264     TARGET_SIGNAL_ABRT = 6,
 265     TARGET_SIGNAL_EMT = 7,
 266     TARGET_SIGNAL_FPE = 8,
 267     TARGET_SIGNAL_KILL = 9,
 268     TARGET_SIGNAL_BUS = 10,
 269     TARGET_SIGNAL_SEGV = 11,
 270     TARGET_SIGNAL_SYS = 12,
 271     TARGET_SIGNAL_PIPE = 13,
 272     TARGET_SIGNAL_ALRM = 14,
 273     TARGET_SIGNAL_TERM = 15,
 274     TARGET_SIGNAL_URG = 16,
 275     TARGET_SIGNAL_STOP = 17,
 276     TARGET_SIGNAL_TSTP = 18,
 277     TARGET_SIGNAL_CONT = 19,
 278     TARGET_SIGNAL_CHLD = 20,
 279     TARGET_SIGNAL_TTIN = 21,
 280     TARGET_SIGNAL_TTOU = 22,
 281     TARGET_SIGNAL_IO = 23,
 282     TARGET_SIGNAL_XCPU = 24,
 283     TARGET_SIGNAL_XFSZ = 25,
 284     TARGET_SIGNAL_VTALRM = 26,
 285     TARGET_SIGNAL_PROF = 27,
 286     TARGET_SIGNAL_WINCH = 28,
 287     TARGET_SIGNAL_LOST = 29,
 288     TARGET_SIGNAL_USR1 = 30,
 289     TARGET_SIGNAL_USR2 = 31,
 290     TARGET_SIGNAL_PWR = 32,
 291     /* Similar to SIGIO.  Perhaps they should have the same number.  */
 292     TARGET_SIGNAL_POLL = 33,
 293     TARGET_SIGNAL_WIND = 34,
 294     TARGET_SIGNAL_PHONE = 35,
 295     TARGET_SIGNAL_WAITING = 36,
 296     TARGET_SIGNAL_LWP = 37,
 297     TARGET_SIGNAL_DANGER = 38,
 298     TARGET_SIGNAL_GRANT = 39,
 299     TARGET_SIGNAL_RETRACT = 40,
 300     TARGET_SIGNAL_MSG = 41,
 301     TARGET_SIGNAL_SOUND = 42,
 302     TARGET_SIGNAL_SAK = 43,
 303     TARGET_SIGNAL_PRIO = 44,
 304     TARGET_SIGNAL_REALTIME_33 = 45,
 305     TARGET_SIGNAL_REALTIME_34 = 46,
 306     TARGET_SIGNAL_REALTIME_35 = 47,
 307     TARGET_SIGNAL_REALTIME_36 = 48,
 308     TARGET_SIGNAL_REALTIME_37 = 49,
 309     TARGET_SIGNAL_REALTIME_38 = 50,
 310     TARGET_SIGNAL_REALTIME_39 = 51,
 311     TARGET_SIGNAL_REALTIME_40 = 52,
 312     TARGET_SIGNAL_REALTIME_41 = 53,
 313     TARGET_SIGNAL_REALTIME_42 = 54,
 314     TARGET_SIGNAL_REALTIME_43 = 55,
 315     TARGET_SIGNAL_REALTIME_44 = 56,
 316     TARGET_SIGNAL_REALTIME_45 = 57,
 317     TARGET_SIGNAL_REALTIME_46 = 58,
 318     TARGET_SIGNAL_REALTIME_47 = 59,
 319     TARGET_SIGNAL_REALTIME_48 = 60,
 320     TARGET_SIGNAL_REALTIME_49 = 61,
 321     TARGET_SIGNAL_REALTIME_50 = 62,
 322     TARGET_SIGNAL_REALTIME_51 = 63,
 323     TARGET_SIGNAL_REALTIME_52 = 64,
 324     TARGET_SIGNAL_REALTIME_53 = 65,
 325     TARGET_SIGNAL_REALTIME_54 = 66,
 326     TARGET_SIGNAL_REALTIME_55 = 67,
 327     TARGET_SIGNAL_REALTIME_56 = 68,
 328     TARGET_SIGNAL_REALTIME_57 = 69,
 329     TARGET_SIGNAL_REALTIME_58 = 70,
 330     TARGET_SIGNAL_REALTIME_59 = 71,
 331     TARGET_SIGNAL_REALTIME_60 = 72,
 332     TARGET_SIGNAL_REALTIME_61 = 73,
 333     TARGET_SIGNAL_REALTIME_62 = 74,
 334     TARGET_SIGNAL_REALTIME_63 = 75,
 335
 336     /* Used internally by Solaris threads.  See signal(5) on Solaris.  */
 337     TARGET_SIGNAL_CANCEL = 76,
 338
 339     /* Yes, this pains me, too.  But LynxOS didn't have SIG32, and now
 340        Linux does, and we can't disturb the numbering, since it's part
 341        of the remote protocol.  Note that in some GDB's
 342        TARGET_SIGNAL_REALTIME_32 is number 76.  */
 343     TARGET_SIGNAL_REALTIME_32,
 344     /* Yet another pain, IRIX 6 has SIG64. */
 345     TARGET_SIGNAL_REALTIME_64,
 346     /* Yet another pain, Linux/MIPS might go up to 128. */
 347     TARGET_SIGNAL_REALTIME_65,
 348     TARGET_SIGNAL_REALTIME_66,
 349     TARGET_SIGNAL_REALTIME_67,
 350     TARGET_SIGNAL_REALTIME_68,
 351     TARGET_SIGNAL_REALTIME_69,
 352     TARGET_SIGNAL_REALTIME_70,
 353     TARGET_SIGNAL_REALTIME_71,
 354     TARGET_SIGNAL_REALTIME_72,
 355     TARGET_SIGNAL_REALTIME_73,
 356     TARGET_SIGNAL_REALTIME_74,
 357     TARGET_SIGNAL_REALTIME_75,
 358     TARGET_SIGNAL_REALTIME_76,
 359     TARGET_SIGNAL_REALTIME_77,
 360     TARGET_SIGNAL_REALTIME_78,
 361     TARGET_SIGNAL_REALTIME_79,
 362     TARGET_SIGNAL_REALTIME_80,
 363     TARGET_SIGNAL_REALTIME_81,
 364     TARGET_SIGNAL_REALTIME_82,
 365     TARGET_SIGNAL_REALTIME_83,
 366     TARGET_SIGNAL_REALTIME_84,
 367     TARGET_SIGNAL_REALTIME_85,
 368     TARGET_SIGNAL_REALTIME_86,
 369     TARGET_SIGNAL_REALTIME_87,
 370     TARGET_SIGNAL_REALTIME_88,
 371     TARGET_SIGNAL_REALTIME_89,
 372     TARGET_SIGNAL_REALTIME_90,
 373     TARGET_SIGNAL_REALTIME_91,
 374     TARGET_SIGNAL_REALTIME_92,
 375     TARGET_SIGNAL_REALTIME_93,
 376     TARGET_SIGNAL_REALTIME_94,
 377     TARGET_SIGNAL_REALTIME_95,
 378     TARGET_SIGNAL_REALTIME_96,
 379     TARGET_SIGNAL_REALTIME_97,
 380     TARGET_SIGNAL_REALTIME_98,
 381     TARGET_SIGNAL_REALTIME_99,
 382     TARGET_SIGNAL_REALTIME_100,
 383     TARGET_SIGNAL_REALTIME_101,
 384     TARGET_SIGNAL_REALTIME_102,
 385     TARGET_SIGNAL_REALTIME_103,
 386     TARGET_SIGNAL_REALTIME_104,
 387     TARGET_SIGNAL_REALTIME_105,
 388     TARGET_SIGNAL_REALTIME_106,
 389     TARGET_SIGNAL_REALTIME_107,
 390     TARGET_SIGNAL_REALTIME_108,
 391     TARGET_SIGNAL_REALTIME_109,
 392     TARGET_SIGNAL_REALTIME_110,
 393     TARGET_SIGNAL_REALTIME_111,
 394     TARGET_SIGNAL_REALTIME_112,
 395     TARGET_SIGNAL_REALTIME_113,
 396     TARGET_SIGNAL_REALTIME_114,
 397     TARGET_SIGNAL_REALTIME_115,
 398     TARGET_SIGNAL_REALTIME_116,
 399     TARGET_SIGNAL_REALTIME_117,
 400     TARGET_SIGNAL_REALTIME_118,
 401     TARGET_SIGNAL_REALTIME_119,
 402     TARGET_SIGNAL_REALTIME_120,
 403     TARGET_SIGNAL_REALTIME_121,
 404     TARGET_SIGNAL_REALTIME_122,
 405     TARGET_SIGNAL_REALTIME_123,
 406     TARGET_SIGNAL_REALTIME_124,
 407     TARGET_SIGNAL_REALTIME_125,
 408     TARGET_SIGNAL_REALTIME_126,
 409     TARGET_SIGNAL_REALTIME_127,
 410
 411 #if defined(MACH) || defined(__MACH__)
 412     /* Mach exceptions */
 413     TARGET_EXC_BAD_ACCESS,
 414     TARGET_EXC_BAD_INSTRUCTION,
 415     TARGET_EXC_ARITHMETIC,
 416     TARGET_EXC_EMULATION,
 417     TARGET_EXC_SOFTWARE,
 418     TARGET_EXC_BREAKPOINT,
 419 #endif
 420     TARGET_SIGNAL_INFO,
 421
 422     /* Some signal we don't know about.  */
 423     TARGET_SIGNAL_UNKNOWN,
 424
 425     /* Use whatever signal we use when one is not specifically specified
 426        (for passing to proceed and so on).  */
 427     TARGET_SIGNAL_DEFAULT,
 428
 429     /* Last and unused enum value, for sizing arrays, etc.  */
 430     TARGET_SIGNAL_LAST
 431   };
 432
 433 /* the cleanup list records things that have to be undone
 434    if an error happens (descriptors to be closed, memory to be freed, etc.)
 435    Each link in the chain records a function to call and an
 436    argument to give it.
 437
 438    Use make_cleanup to add an element to the cleanup chain.
 439    Use do_cleanups to do all cleanup actions back to a given
 440    point in the chain.  Use discard_cleanups to remove cleanups
 441    from the chain back to a given point, not doing them.  */
 442
 443 struct cleanup
 444   {
 445     struct cleanup *next;
 446     void (*function) (PTR);
 447     PTR arg;
 448   };
 449
 450
 451 /* The ability to declare that a function never returns is useful, but
 452    not really required to compile GDB successfully, so the NORETURN and
 453    ATTR_NORETURN macros normally expand into nothing.  */
 454
 455 /* If compiling with older versions of GCC, a function may be declared
 456    "volatile" to indicate that it does not return.  */
 457
 458 #ifndef NORETURN
 459 #if defined(__GNUC__) \
 460      && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
 461 #define NORETURN volatile
 462 #else
 463 #define NORETURN                /* nothing */
 464 #endif
 465 #endif
 466
 467 /* GCC 2.5 and later versions define a function attribute "noreturn",
 468    which is the preferred way to declare that a function never returns.
 469    However GCC 2.7 appears to be the first version in which this fully
 470    works everywhere we use it. */
 471
 472 #ifndef ATTR_NORETURN
 473 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
 474 #define ATTR_NORETURN __attribute__ ((noreturn))
 475 #else
 476 #define ATTR_NORETURN           /* nothing */
 477 #endif
 478 #endif
 479
 480 #ifndef ATTR_FORMAT
 481 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 4))
 482 #define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
 483 #else
 484 #define ATTR_FORMAT(type, x, y) /* nothing */
 485 #endif
 486 #endif
 487
 488 /* Needed for various prototypes */
 489
 490 struct symtab;
 491 struct breakpoint;
 492
 493 /* From blockframe.c */
 494
 495 extern int inside_entry_func (CORE_ADDR);
 496
 497 extern int inside_entry_file (CORE_ADDR addr);
 498
 499 extern int inside_main_func (CORE_ADDR pc);
 500
 501 /* From ch-lang.c, for the moment. (FIXME) */
 502
 503 extern char *chill_demangle (const char *);
 504
 505 /* From utils.c */
 506
 507 extern void initialize_utils (void);
 508
 509 extern void notice_quit (void);
 510
 511 extern int strcmp_iw (const char *, const char *);
 512
 513 extern int subset_compare (char *, char *);
 514
 515 extern char *safe_strerror (int);
 516
 517 extern void init_malloc (void *);
 518
 519 extern void request_quit (int);
 520
 521 extern void do_cleanups (struct cleanup *);
 522 extern void do_final_cleanups (struct cleanup *);
 523 extern void do_my_cleanups (struct cleanup **, struct cleanup *);
 524 extern void do_run_cleanups (struct cleanup *);
 525 extern void do_exec_cleanups (struct cleanup *);
 526 extern void do_exec_error_cleanups (struct cleanup *);
 527
 528 extern void discard_cleanups (struct cleanup *);
 529 extern void discard_final_cleanups (struct cleanup *);
 530 extern void discard_exec_error_cleanups (struct cleanup *);
 531 extern void discard_my_cleanups (struct cleanup **, struct cleanup *);
 532
 533 /* NOTE: cagney/2000-03-04: This typedef is strictly for the
 534    make_cleanup function declarations below. Do not use this typedef
 535    as a cast when passing functions into the make_cleanup() code.
 536    Instead either use a bounce function or add a wrapper function.
 537    Calling a f(char*) function with f(void*) is non-portable. */
 538 typedef void (make_cleanup_ftype) (void *);
 539
 540 extern struct cleanup *make_cleanup (make_cleanup_ftype *, void *);
 541
 542 extern struct cleanup *make_cleanup_freeargv (char **);
 543
 544 struct ui_file;
 545 extern struct cleanup *make_cleanup_ui_file_delete (struct ui_file *);
 546
 547 extern struct cleanup *make_cleanup_close (int fd);
 548
 549 extern struct cleanup *make_cleanup_bfd_close (bfd *abfd);
 550
 551 extern struct cleanup *make_final_cleanup (make_cleanup_ftype *, void *);
 552
 553 extern struct cleanup *make_my_cleanup (struct cleanup **,
 554                                         make_cleanup_ftype *, void *);
 555
 556 extern struct cleanup *make_run_cleanup (make_cleanup_ftype *, void *);
 557
 558 extern struct cleanup *make_exec_cleanup (make_cleanup_ftype *, void *);
 559 extern struct cleanup *make_exec_error_cleanup (make_cleanup_ftype *, void *);
 560
 561 extern struct cleanup *save_cleanups (void);
 562 extern struct cleanup *save_final_cleanups (void);
 563 extern struct cleanup *save_my_cleanups (struct cleanup **);
 564
 565 extern void restore_cleanups (struct cleanup *);
 566 extern void restore_final_cleanups (struct cleanup *);
 567 extern void restore_my_cleanups (struct cleanup **, struct cleanup *);
 568
 569 extern void free_current_contents (void *);
 570
 571 extern void null_cleanup (void *);
 572
 573 extern int myread (int, char *, int);
 574
 575 extern int query (char *, ...) ATTR_FORMAT (printf, 1, 2);
 576
 577 extern void init_page_info (void);
 578
 579 extern CORE_ADDR host_pointer_to_address (void *ptr);
 580 extern void *address_to_host_pointer (CORE_ADDR addr);
 581
 582 /* From demangle.c */
 583
 584 extern void set_demangling_style (char *);
 585
 586 /* From tm.h */
 587
 588 struct type;
 589 typedef int (use_struct_convention_fn) (int gcc_p, struct type * value_type);
 590 extern use_struct_convention_fn generic_use_struct_convention;
 591
 592 typedef unsigned char *(breakpoint_from_pc_fn) (CORE_ADDR * pcptr, int *lenptr);
 593 \f
 594 /* Annotation stuff.  */
 595
 596 extern int annotation_level;    /* in stack.c */
 597 \f
 598 extern void begin_line (void);
 599
 600 extern void wrap_here (char *);
 601
 602 extern void reinitialize_more_filter (void);
 603
 604 /* Normal results */
 605 extern struct ui_file *gdb_stdout;
 606 /* Serious error notifications */
 607 extern struct ui_file *gdb_stderr;
 608 /* Log/debug/trace messages that should bypass normal stdout/stderr
 609    filtering.  For momement, always call this stream using
 610    *_unfiltered. In the very near future that restriction shall be
 611    removed - either call shall be unfiltered. (cagney 1999-06-13). */
 612 extern struct ui_file *gdb_stdlog;
 613 /* Target output that should bypass normal stdout/stderr filtering.
 614    For momement, always call this stream using *_unfiltered. In the
 615    very near future that restriction shall be removed - either call
 616    shall be unfiltered. (cagney 1999-07-02). */
 617 extern struct ui_file *gdb_stdtarg;
 618
 619 #if defined(TUI)
 620 #include "tui.h"
 621 #endif
 622
 623 #include "ui-file.h"
 624
 625 /* More generic printf like operations.  Filtered versions may return
 626    non-locally on error.  */
 627
 628 extern void fputs_filtered (const char *, struct ui_file *);
 629
 630 extern void fputs_unfiltered (const char *, struct ui_file *);
 631
 632 extern int fputc_filtered (int c, struct ui_file *);
 633
 634 extern int fputc_unfiltered (int c, struct ui_file *);
 635
 636 extern int putchar_filtered (int c);
 637
 638 extern int putchar_unfiltered (int c);
 639
 640 extern void puts_filtered (const char *);
 641
 642 extern void puts_unfiltered (const char *);
 643
 644 extern void puts_debug (char *prefix, char *string, char *suffix);
 645
 646 extern void vprintf_filtered (const char *, va_list) ATTR_FORMAT (printf, 1, 0);
 647
 648 extern void vfprintf_filtered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0);
 649
 650 extern void fprintf_filtered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3);
 651
 652 extern void fprintfi_filtered (int, struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 3, 4);
 653
 654 extern void printf_filtered (const char *, ...) ATTR_FORMAT (printf, 1, 2);
 655
 656 extern void printfi_filtered (int, const char *, ...) ATTR_FORMAT (printf, 2, 3);
 657
 658 extern void vprintf_unfiltered (const char *, va_list) ATTR_FORMAT (printf, 1, 0);
 659
 660 extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0);
 661
 662 extern void fprintf_unfiltered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3);
 663
 664 extern void printf_unfiltered (const char *, ...) ATTR_FORMAT (printf, 1, 2);
 665
 666 extern void print_spaces (int, struct ui_file *);
 667
 668 extern void print_spaces_filtered (int, struct ui_file *);
 669
 670 extern char *n_spaces (int);
 671
 672 extern void fputstr_filtered (const char *str, int quotr, struct ui_file * stream);
 673
 674 extern void fputstr_unfiltered (const char *str, int quotr, struct ui_file * stream);
 675
 676 extern void fputstrn_unfiltered (const char *str, int n, int quotr, struct ui_file * stream);
 677
 678 /* Display the host ADDR on STREAM formatted as ``0x%x''. */
 679 extern void gdb_print_host_address (void *addr, struct ui_file *stream);
 680
 681 /* Convert a CORE_ADDR into a HEX string.  paddr() is like %08lx.
 682    paddr_nz() is like %lx.  paddr_u() is like %lu. paddr_width() is
 683    for ``%*''. */
 684 extern int strlen_paddr (void);
 685 extern char *paddr (CORE_ADDR addr);
 686 extern char *paddr_nz (CORE_ADDR addr);
 687 extern char *paddr_u (CORE_ADDR addr);
 688 extern char *paddr_d (LONGEST addr);
 689
 690 extern char *phex (ULONGEST l, int sizeof_l);
 691 extern char *phex_nz (ULONGEST l, int sizeof_l);
 692
 693 /* Like paddr() only print/scan raw CORE_ADDR.  The output from
 694    core_addr_to_string() can be passed direct to
 695    string_to_core_addr().  */
 696 extern const char *core_addr_to_string (const CORE_ADDR addr);
 697 extern CORE_ADDR string_to_core_addr (const char *my_string);
 698
 699 extern void fprintf_symbol_filtered (struct ui_file *, char *,
 700                                      enum language, int);
 701
 702 extern NORETURN void perror_with_name (char *) ATTR_NORETURN;
 703
 704 extern void print_sys_errmsg (char *, int);
 705
 706 /* From regex.c or libc.  BSD 4.4 declares this with the argument type as
 707    "const char *" in unistd.h, so we can't declare the argument
 708    as "char *".  */
 709
 710 extern char *re_comp (const char *);
 711
 712 /* From symfile.c */
 713
 714 extern void symbol_file_command (char *, int);
 715
 716 /* Remote targets may wish to use this as their load function.  */
 717 extern void generic_load (char *name, int from_tty);
 718
 719 /* Summarise a download */
 720 extern void print_transfer_performance (struct ui_file *stream,
 721                                         unsigned long data_count,
 722                                         unsigned long write_count,
 723                                         unsigned long time_count);
 724
 725 /* From top.c */
 726
 727 typedef void initialize_file_ftype (void);
 728
 729 extern char *skip_quoted (char *);
 730
 731 extern char *gdb_readline (char *);
 732
 733 extern char *command_line_input (char *, int, char *);
 734
 735 extern void print_prompt (void);
 736
 737 extern int input_from_terminal_p (void);
 738
 739 extern int info_verbose;
 740
 741 /* From printcmd.c */
 742
 743 extern void set_next_address (CORE_ADDR);
 744
 745 extern void print_address_symbolic (CORE_ADDR, struct ui_file *, int,
 746                                     char *);
 747
 748 extern int build_address_symbolic (CORE_ADDR addr,
 749                                    int do_demangle,
 750                                    char **name,
 751                                    int *offset,
 752                                    char **filename,
 753                                    int *line,
 754                                    int *unmapped);
 755
 756 extern void print_address_numeric (CORE_ADDR, int, struct ui_file *);
 757
 758 extern void print_address (CORE_ADDR, struct ui_file *);
 759
 760 /* From source.c */
 761
 762 extern int openp (const char *, int, const char *, int, int, char **);
 763
 764 extern int source_full_path_of (char *, char **);
 765
 766 extern void mod_path (char *, char **);
 767
 768 extern void directory_command (char *, int);
 769
 770 extern void init_source_path (void);
 771
 772 extern char *symtab_to_filename (struct symtab *);
 773
 774 /* From exec.c */
 775
 776 extern void exec_set_section_offsets (bfd_signed_vma text_off,
 777                                       bfd_signed_vma data_off,
 778                                       bfd_signed_vma bss_off);
 779
 780 /* From findvar.c */
 781
 782 extern int read_relative_register_raw_bytes (int, char *);
 783
 784 /* Possible lvalue types.  Like enum language, this should be in
 785    value.h, but needs to be here for the same reason. */
 786
 787 enum lval_type
 788   {
 789     /* Not an lval. */
 790     not_lval,
 791     /* In memory.  Could be a saved register.  */
 792     lval_memory,
 793     /* In a register.  */
 794     lval_register,
 795     /* In a gdb internal variable.  */
 796     lval_internalvar,
 797     /* Part of a gdb internal variable (structure field).  */
 798     lval_internalvar_component,
 799     /* In a register series in a frame not the current one, which may have been
 800        partially saved or saved in different places (otherwise would be
 801        lval_register or lval_memory).  */
 802     lval_reg_frame_relative
 803   };
 804
 805 struct frame_info;
 806
 807 /* From readline (but not in any readline .h files).  */
 808
 809 extern char *tilde_expand (char *);
 810
 811 /* Control types for commands */
 812
 813 enum misc_command_type
 814   {
 815     ok_command,
 816     end_command,
 817     else_command,
 818     nop_command
 819   };
 820
 821 enum command_control_type
 822   {
 823     simple_control,
 824     break_control,
 825     continue_control,
 826     while_control,
 827     if_control,
 828     invalid_control
 829   };
 830
 831 /* Structure for saved commands lines
 832    (for breakpoints, defined commands, etc).  */
 833
 834 struct command_line
 835   {
 836     struct command_line *next;
 837     char *line;
 838     enum command_control_type control_type;
 839     int body_count;
 840     struct command_line **body_list;
 841   };
 842
 843 extern struct command_line *read_command_lines (char *, int);
 844
 845 extern void free_command_lines (struct command_line **);
 846
 847 /* To continue the execution commands when running gdb asynchronously.
 848    A continuation structure contains a pointer to a function to be called
 849    to finish the command, once the target has stopped. Such mechanism is
 850    used bt the finish and until commands, and in the remote protocol
 851    when opening an extended-remote connection. */
 852
 853 struct continuation_arg
 854   {
 855     struct continuation_arg *next;
 856     union continuation_data {
 857       void *pointer;
 858       int   integer;
 859       long  longint;
 860     } data;
 861   };
 862
 863 struct continuation
 864   {
 865     void (*continuation_hook) (struct continuation_arg *);
 866     struct continuation_arg *arg_list;
 867     struct continuation *next;
 868   };
 869
 870 /* In infrun.c. */
 871 extern struct continuation *cmd_continuation;
 872 /* Used only by the step_1 function. */
 873 extern struct continuation *intermediate_continuation;
 874
 875 /* From utils.c */
 876 extern void add_continuation (void (*)(struct continuation_arg *),
 877                               struct continuation_arg *);
 878 extern void do_all_continuations (void);
 879 extern void discard_all_continuations (void);
 880
 881 extern void add_intermediate_continuation (void (*)(struct continuation_arg *),
 882                               struct continuation_arg *);
 883 extern void do_all_intermediate_continuations (void);
 884 extern void discard_all_intermediate_continuations (void);
 885
 886 /* String containing the current directory (what getwd would return).  */
 887
 888 extern char *current_directory;
 889
 890 /* Default radixes for input and output.  Only some values supported.  */
 891 extern unsigned input_radix;
 892 extern unsigned output_radix;
 893
 894 /* Possibilities for prettyprint parameters to routines which print
 895    things.  Like enum language, this should be in value.h, but needs
 896    to be here for the same reason.  FIXME:  If we can eliminate this
 897    as an arg to LA_VAL_PRINT, then we can probably move it back to
 898    value.h. */
 899
 900 enum val_prettyprint
 901   {
 902     Val_no_prettyprint = 0,
 903     Val_prettyprint,
 904     /* Use the default setting which the user has specified.  */
 905     Val_pretty_default
 906   };
 907
 908 /* The ptid struct is a collection of the various "ids" necessary
 909    for identifying the inferior.  This consists of the process id
 910    (pid), thread id (tid), and other fields necessary for uniquely
 911    identifying the inferior process/thread being debugged.  When
 912    manipulating ptids, the constructors, accessors, and predicate
 913    declared in inferior.h should be used.  These are as follows:
 914
 915       ptid_build        - Make a new ptid from a pid, lwp, and tid.
 916       pid_to_ptid       - Make a new ptid from just a pid.
 917       ptid_get_pid      - Fetch the pid component of a ptid.
 918       ptid_get_lwp      - Fetch the lwp component of a ptid.
 919       ptid_get_tid      - Fetch the tid component of a ptid.
 920       ptid_equal        - Test to see if two ptids are equal.
 921
 922    Please do NOT access the struct ptid members directly (except, of
 923    course, in the implementation of the above ptid manipulation
 924    functions).  */
 925
 926 struct ptid
 927   {
 928     /* Process id */
 929     int pid;
 930
 931     /* Lightweight process id */
 932     long lwp;
 933
 934     /* Thread id */
 935     long tid;
 936   };
 937
 938 typedef struct ptid ptid_t;
 939
 940 \f
 941
 942 /* Optional host machine definition.  Pure autoconf targets will not
 943    need a "xm.h" file.  This will be a symlink to one of the xm-*.h
 944    files, built by the `configure' script.  */
 945
 946 #ifdef GDB_XM_FILE
 947 #include "xm.h"
 948 #endif
 949
 950 /* Optional native machine support.  Non-native (and possibly pure
 951    multi-arch) targets do not need a "nm.h" file.  This will be a
 952    symlink to one of the nm-*.h files, built by the `configure'
 953    script.  */
 954
 955 #ifdef GDB_NM_FILE
 956 #include "nm.h"
 957 #endif
 958
 959 /* Optional target machine definition.  Pure multi-arch configurations
 960    do not need a "tm.h" file.  This will be a symlink to one of the
 961    tm-*.h files, built by the `configure' script.  */
 962
 963 #ifdef GDB_TM_FILE
 964 #include "tm.h"
 965 #endif
 966
 967 /* GDB_MULTI_ARCH is normally set by configure.in using information
 968    from configure.tgt or the config/%/%.mt Makefile fragment.  Since
 969    some targets have defined it in their "tm.h" file, delay providing
 970    a default definition until after "tm.h" has been included.. */
 971
 972 #ifndef GDB_MULTI_ARCH
 973 #define GDB_MULTI_ARCH 0
 974 #endif
 975
 976
 977 /* If the xm.h file did not define the mode string used to open the
 978    files, assume that binary files are opened the same way as text
 979    files */
 980 #ifndef FOPEN_RB
 981 #include "fopen-same.h"
 982 #endif
 983
 984 #define CONST_PTR const
 985
 986 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
 987    FIXME: Assumes 2's complement arithmetic */
 988
 989 #if !defined (UINT_MAX)
 990 #define UINT_MAX ((unsigned int)(~0))   /* 0xFFFFFFFF for 32-bits */
 991 #endif
 992
 993 #if !defined (INT_MAX)
 994 #define INT_MAX ((int)(UINT_MAX >> 1))  /* 0x7FFFFFFF for 32-bits */
 995 #endif
 996
 997 #if !defined (INT_MIN)
 998 #define INT_MIN ((int)((int) ~0 ^ INT_MAX))     /* 0x80000000 for 32-bits */
 999 #endif
1000
1001 #if !defined (ULONG_MAX)
1002 #define ULONG_MAX ((unsigned long)(~0L))        /* 0xFFFFFFFF for 32-bits */
1003 #endif
1004
1005 #if !defined (LONG_MAX)
1006 #define LONG_MAX ((long)(ULONG_MAX >> 1))       /* 0x7FFFFFFF for 32-bits */
1007 #endif
1008
1009 #if !defined (ULONGEST_MAX)
1010 #define ULONGEST_MAX (~(ULONGEST)0)        /* 0xFFFFFFFFFFFFFFFF for 64-bits */
1011 #endif
1012
1013 #if !defined (LONGEST_MAX)                 /* 0x7FFFFFFFFFFFFFFF for 64-bits */
1014 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
1015 #endif
1016
1017 /* Convert a LONGEST to an int.  This is used in contexts (e.g. number of
1018    arguments to a function, number in a value history, register number, etc.)
1019    where the value must not be larger than can fit in an int.  */
1020
1021 extern int longest_to_int (LONGEST);
1022
1023 /* Assorted functions we can declare, now that const and volatile are
1024    defined.  */
1025
1026 extern char *savestring (const char *, size_t);
1027
1028 extern char *msavestring (void *, const char *, size_t);
1029
1030 extern char *mstrsave (void *, const char *);
1031
1032 #if !defined (USE_MMALLOC)
1033 /* NOTE: cagney/2000-03-04: The mmalloc functions need to use PTR
1034    rather than void* so that they are consistent with the delcaration
1035    in ../mmalloc/mmalloc.h. */
1036 extern PTR mcalloc (PTR, size_t, size_t);
1037 extern PTR mmalloc (PTR, size_t);
1038 extern PTR mrealloc (PTR, PTR, size_t);
1039 extern void mfree (PTR, PTR);
1040 #endif
1041
1042 /* Robust versions of same.  Throw an internal error when no memory,
1043    guard against stray NULL arguments. */
1044 extern void *xmmalloc (void *md, size_t size);
1045 extern void *xmrealloc (void *md, void *ptr, size_t size);
1046 extern void *xmcalloc (void *md, size_t number, size_t size);
1047 extern void xmfree (void *md, void *ptr);
1048
1049 /* xmalloc(), xrealloc() and xcalloc() have already been declared in
1050    "libiberty.h". */
1051 extern void xfree (void *);
1052
1053 /* Like asprintf/vasprintf but get an internal_error if the call
1054    fails. */
1055 extern void xasprintf (char **ret, const char *format, ...) ATTR_FORMAT (printf, 2, 3);
1056 extern void xvasprintf (char **ret, const char *format, va_list ap);
1057
1058 extern int parse_escape (char **);
1059
1060 /* Message to be printed before the error message, when an error occurs.  */
1061
1062 extern char *error_pre_print;
1063
1064 /* Message to be printed before the error message, when an error occurs.  */
1065
1066 extern char *quit_pre_print;
1067
1068 /* Message to be printed before the warning message, when a warning occurs.  */
1069
1070 extern char *warning_pre_print;
1071
1072 extern NORETURN void verror (const char *fmt, va_list ap) ATTR_NORETURN;
1073
1074 extern NORETURN void error (const char *fmt, ...) ATTR_NORETURN;
1075
1076 /* DEPRECATED: Use error(), verror() or error_stream(). */
1077 extern NORETURN void error_begin (void);
1078
1079 extern NORETURN void error_stream (struct ui_file *) ATTR_NORETURN;
1080
1081 /* Returns a freshly allocate buffer containing the last error
1082    message.  */
1083 extern char *error_last_message (void);
1084
1085 extern NORETURN void internal_verror (const char *file, int line,
1086                                       const char *, va_list ap) ATTR_NORETURN;
1087
1088 extern NORETURN void internal_error (const char *file, int line,
1089                                      const char *, ...) ATTR_NORETURN ATTR_FORMAT (printf, 3, 4);
1090
1091 extern NORETURN void nomem (long) ATTR_NORETURN;
1092
1093 /* Reasons for calling return_to_top_level.  NOTE: all reason values
1094    must be less than zero.  enum value 0 is reserved for internal use
1095    as the return value from an initial setjmp().  The function
1096    catch_exceptions() reserves values >= 0 as legal results from its
1097    wrapped function.  */
1098
1099 enum return_reason
1100   {
1101     /* User interrupt.  */
1102     RETURN_QUIT = -2,
1103     /* Any other error.  */
1104     RETURN_ERROR
1105   };
1106
1107 #define ALL_CLEANUPS    ((struct cleanup *)0)
1108
1109 #define RETURN_MASK(reason)     (1 << (int)(-reason))
1110 #define RETURN_MASK_QUIT        RETURN_MASK (RETURN_QUIT)
1111 #define RETURN_MASK_ERROR       RETURN_MASK (RETURN_ERROR)
1112 #define RETURN_MASK_ALL         (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
1113 typedef int return_mask;
1114
1115 extern NORETURN void return_to_top_level (enum return_reason) ATTR_NORETURN;
1116
1117 /* Call FUNC(UIOUT, FUNC_ARGS) but wrapped within an exception
1118    handler.  If an exception (enum return_reason) is thrown using
1119    return_to_top_level() than all cleanups installed since
1120    catch_exceptions() was entered are invoked, the (-ve) exception
1121    value is then returned by catch_exceptions.  If FUNC() returns
1122    normally (with a postive or zero return value) then that value is
1123    returned by catch_exceptions().  It is an internal_error() for
1124    FUNC() to return a negative value.
1125
1126    For the period of the FUNC() call: UIOUT is installed as the output
1127    builder; ERRSTRING is installed as the error/quit message; and a
1128    new cleanup_chain is established.  The old values are restored
1129    before catch_exceptions() returns.
1130
1131    FIXME; cagney/2001-08-13: The need to override the global UIOUT
1132    builder variable should just go away.
1133
1134    This function superseeds catch_errors().
1135
1136    This function uses SETJMP() and LONGJUMP().  */
1137
1138 struct ui_out;
1139 typedef int (catch_exceptions_ftype) (struct ui_out *ui_out, void *args);
1140 extern int catch_exceptions (struct ui_out *uiout,
1141                              catch_exceptions_ftype *func, void *func_args,
1142                              char *errstring, return_mask mask);
1143
1144 /* If CATCH_ERRORS_FTYPE throws an error, catch_errors() returns zero
1145    otherwize the result from CATCH_ERRORS_FTYPE is returned. It is
1146    probably useful for CATCH_ERRORS_FTYPE to always return a non-zero
1147    value. It's unfortunate that, catch_errors() does not return an
1148    indication of the exact exception that it caught - quit_flag might
1149    help.
1150
1151    This function is superseeded by catch_exceptions().  */
1152
1153 typedef int (catch_errors_ftype) (PTR);
1154 extern int catch_errors (catch_errors_ftype *, PTR, char *, return_mask);
1155
1156 /* Template to catch_errors() that wraps calls to command
1157    functions. */
1158
1159 typedef void (catch_command_errors_ftype) (char *, int);
1160 extern int catch_command_errors (catch_command_errors_ftype *func, char *command, int from_tty, return_mask);
1161
1162 extern void warning_begin (void);
1163
1164 extern void warning (const char *, ...) ATTR_FORMAT (printf, 1, 2);
1165
1166 /* Global functions from other, non-gdb GNU thingies.
1167    Libiberty thingies are no longer declared here.  We include libiberty.h
1168    above, instead.  */
1169
1170 #ifndef GETENV_PROVIDED
1171 extern char *getenv (const char *);
1172 #endif
1173
1174 /* From other system libraries */
1175
1176 #ifdef HAVE_STDDEF_H
1177 #include <stddef.h>
1178 #endif
1179
1180 #ifdef HAVE_STDLIB_H
1181 #include <stdlib.h>
1182 #endif
1183 #ifndef min
1184 #define min(a, b) ((a) < (b) ? (a) : (b))
1185 #endif
1186 #ifndef max
1187 #define max(a, b) ((a) > (b) ? (a) : (b))
1188 #endif
1189
1190
1191 /* We take the address of fclose later, but some stdio's forget
1192    to declare this.  We can't always declare it since there's
1193    no way to declare the parameters without upsetting some compiler
1194    somewhere. */
1195
1196 #ifndef FCLOSE_PROVIDED
1197 extern int fclose (FILE *);
1198 #endif
1199
1200 #ifndef atof
1201 extern double atof (const char *);      /* X3.159-1989  4.10.1.1 */
1202 #endif
1203
1204 /* Various possibilities for alloca.  */
1205 #ifndef alloca
1206 #ifdef __GNUC__
1207 #define alloca __builtin_alloca
1208 #else /* Not GNU C */
1209 #ifdef HAVE_ALLOCA_H
1210 #include <alloca.h>
1211 #else
1212 #ifdef _AIX
1213 #pragma alloca
1214 #else
1215
1216 /* We need to be careful not to declare this in a way which conflicts with
1217    bison.  Bison never declares it as char *, but under various circumstances
1218    (like __hpux) we need to use void *.  */
1219 extern void *alloca ();
1220 #endif /* Not _AIX */
1221 #endif /* Not HAVE_ALLOCA_H */
1222 #endif /* Not GNU C */
1223 #endif /* alloca not defined */
1224
1225 /* HOST_BYTE_ORDER must be defined to one of these.  */
1226
1227 #ifdef HAVE_ENDIAN_H
1228 #include <endian.h>
1229 #endif
1230
1231 #if !defined (BIG_ENDIAN)
1232 #define BIG_ENDIAN 4321
1233 #endif
1234
1235 #if !defined (LITTLE_ENDIAN)
1236 #define LITTLE_ENDIAN 1234
1237 #endif
1238
1239 /* Dynamic target-system-dependent parameters for GDB. */
1240 #include "gdbarch.h"
1241 #if (GDB_MULTI_ARCH == 0)
1242 /* Multi-arch targets _should_ be including "arch-utils.h" directly
1243    into their *-tdep.c file.  This is a prop to help old non-
1244    multi-arch targets to continue to compile. */
1245 #include "arch-utils.h"
1246 #endif
1247
1248 /* Static target-system-dependent parameters for GDB. */
1249
1250 /* Number of bits in a char or unsigned char for the target machine.
1251    Just like CHAR_BIT in <limits.h> but describes the target machine.  */
1252 #if !defined (TARGET_CHAR_BIT)
1253 #define TARGET_CHAR_BIT 8
1254 #endif
1255
1256 /* If we picked up a copy of CHAR_BIT from a configuration file
1257    (which may get it by including <limits.h>) then use it to set
1258    the number of bits in a host char.  If not, use the same size
1259    as the target. */
1260
1261 #if defined (CHAR_BIT)
1262 #define HOST_CHAR_BIT CHAR_BIT
1263 #else
1264 #define HOST_CHAR_BIT TARGET_CHAR_BIT
1265 #endif
1266
1267 /* The bit byte-order has to do just with numbering of bits in
1268    debugging symbols and such.  Conceptually, it's quite separate
1269    from byte/word byte order.  */
1270
1271 #if !defined (BITS_BIG_ENDIAN)
1272 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BIG_ENDIAN)
1273 #endif
1274
1275 /* In findvar.c.  */
1276
1277 extern LONGEST extract_signed_integer (void *, int);
1278
1279 extern ULONGEST extract_unsigned_integer (void *, int);
1280
1281 extern int extract_long_unsigned_integer (void *, int, LONGEST *);
1282
1283 extern CORE_ADDR extract_address (void *, int);
1284
1285 extern CORE_ADDR extract_typed_address (void *buf, struct type *type);
1286
1287 extern void store_signed_integer (void *, int, LONGEST);
1288
1289 extern void store_unsigned_integer (void *, int, ULONGEST);
1290
1291 extern void store_address (void *, int, LONGEST);
1292
1293 extern void store_typed_address (void *buf, struct type *type, CORE_ADDR addr);
1294
1295 \f
1296 /* From valops.c */
1297
1298 extern CORE_ADDR push_bytes (CORE_ADDR, char *, int);
1299
1300 extern CORE_ADDR push_word (CORE_ADDR, ULONGEST);
1301
1302 extern int watchdog;
1303
1304 /* Hooks for alternate command interfaces.  */
1305
1306 #ifdef UI_OUT
1307 /* The name of the interpreter if specified on the command line. */
1308 extern char *interpreter_p;
1309 #endif
1310
1311 /* If a given interpreter matches INTERPRETER_P then it should update
1312    command_loop_hook and init_ui_hook with the per-interpreter
1313    implementation. */
1314 /* FIXME: command_loop_hook and init_ui_hook should be moved here. */
1315
1316 struct target_waitstatus;
1317 struct cmd_list_element;
1318
1319 /* Should the asynchronous variant of the interpreter (using the
1320    event-loop) be enabled? */
1321 extern int event_loop_p;
1322
1323 extern void (*init_ui_hook) (char *argv0);
1324 extern void (*command_loop_hook) (void);
1325 extern void (*show_load_progress) (const char *section,
1326                                    unsigned long section_sent,
1327                                    unsigned long section_size,
1328                                    unsigned long total_sent,
1329                                    unsigned long total_size);
1330 extern void (*print_frame_info_listing_hook) (struct symtab * s,
1331                                               int line, int stopline,
1332                                               int noerror);
1333 extern struct frame_info *parse_frame_specification (char *frame_exp);
1334 extern int (*query_hook) (const char *, va_list);
1335 extern void (*warning_hook) (const char *, va_list);
1336 extern void (*flush_hook) (struct ui_file * stream);
1337 extern void (*create_breakpoint_hook) (struct breakpoint * b);
1338 extern void (*delete_breakpoint_hook) (struct breakpoint * bpt);
1339 extern void (*modify_breakpoint_hook) (struct breakpoint * bpt);
1340 extern void (*interactive_hook) (void);
1341 extern void (*registers_changed_hook) (void);
1342 extern void (*readline_begin_hook) (char *,...);
1343 extern char *(*readline_hook) (char *);
1344 extern void (*readline_end_hook) (void);
1345 extern void (*register_changed_hook) (int regno);
1346 extern void (*memory_changed_hook) (CORE_ADDR addr, int len);
1347 extern void (*context_hook) (int);
1348 extern ptid_t (*target_wait_hook) (ptid_t ptid,
1349                                          struct target_waitstatus * status);
1350
1351 extern void (*attach_hook) (void);
1352 extern void (*detach_hook) (void);
1353 extern void (*call_command_hook) (struct cmd_list_element * c,
1354                                   char *cmd, int from_tty);
1355
1356 extern void (*set_hook) (struct cmd_list_element * c);
1357
1358 extern NORETURN void (*error_hook) (void) ATTR_NORETURN;
1359
1360 extern void (*error_begin_hook) (void);
1361
1362 extern int (*ui_load_progress_hook) (const char *section, unsigned long num);
1363
1364
1365 /* Inhibit window interface if non-zero. */
1366
1367 extern int use_windows;
1368
1369 /* Symbolic definitions of filename-related things.  */
1370 /* FIXME, this doesn't work very well if host and executable
1371    filesystems conventions are different.  */
1372
1373 #ifndef DIRNAME_SEPARATOR
1374 #define DIRNAME_SEPARATOR ':'
1375 #endif
1376
1377 #ifndef SLASH_STRING
1378 #define SLASH_STRING "/"
1379 #endif
1380
1381 #ifdef __MSDOS__
1382 # define CANT_FORK
1383 # define GLOBAL_CURDIR
1384 #endif
1385
1386 /* Provide default definitions of PIDGET, TIDGET, and MERGEPID.
1387    The name ``TIDGET'' is a historical accident.  Many uses of TIDGET
1388    in the code actually refer to a lightweight process id, i.e,
1389    something that can be considered a process id in its own right for
1390    certain purposes.  */
1391
1392 #ifndef PIDGET
1393 #define PIDGET(PTID) (ptid_get_pid (PTID))
1394 #define TIDGET(PTID) (ptid_get_lwp (PTID))
1395 #define MERGEPID(PID, TID) ptid_build (PID, TID, 0)
1396 #endif
1397
1398 /* Define well known filenos if the system does not define them.  */
1399 #ifndef STDIN_FILENO
1400 #define STDIN_FILENO   0
1401 #endif
1402 #ifndef STDOUT_FILENO
1403 #define STDOUT_FILENO  1
1404 #endif
1405 #ifndef STDERR_FILENO
1406 #define STDERR_FILENO  2
1407 #endif
1408
1409 /* If this definition isn't overridden by the header files, assume
1410    that isatty and fileno exist on this system.  */
1411 #ifndef ISATTY
1412 #define ISATTY(FP)      (isatty (fileno (FP)))
1413 #endif
1414
1415 #endif /* #ifndef DEFS_H */