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, 2002
   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 /* For BFD64 and bfd_vma.  */
  63 #include "bfd.h"
  64
  65
  66 /* The target is partially multi-arched.  Both "tm.h" and the
  67    multi-arch vector provide definitions.  "tm.h" normally overrides
  68    the multi-arch vector (but there are a few exceptions).  */
  69
  70 #define GDB_MULTI_ARCH_PARTIAL 1
  71
  72 /* The target is partially multi-arched. Both the multi-arch vector
  73    and "tm.h" provide definitions. "tm.h" cannot override a definition
  74    provided by the multi-arch vector.  It is detected as a compilation
  75    error.
  76
  77    This setting is only useful during a multi-arch conversion. */
  78
  79 #define GDB_MULTI_ARCH_TM 2
  80
  81 /* The target is pure multi-arch.  The MULTI-ARCH vector provides all
  82    definitions.  "tm.h" is linked to an empty file. */
  83
  84 #define GDB_MULTI_ARCH_PURE 3
  85
  86
  87
  88 /* An address in the program being debugged.  Host byte order.  Rather
  89    than duplicate all the logic in BFD which figures out what type
  90    this is (long, long long, etc.) and whether it needs to be 64
  91    bits (the host/target interactions are subtle), we just use
  92    bfd_vma.  */
  93
  94 typedef bfd_vma CORE_ADDR;
  95
  96 /* This is to make sure that LONGEST is at least as big as CORE_ADDR.  */
  97
  98 #ifndef LONGEST
  99
 100 #ifdef BFD64
 101
 102 #define LONGEST BFD_HOST_64_BIT
 103 #define ULONGEST BFD_HOST_U_64_BIT
 104
 105 #else /* No BFD64 */
 106
 107 #ifdef CC_HAS_LONG_LONG
 108 #define LONGEST long long
 109 #define ULONGEST unsigned long long
 110 #else
 111 #ifdef BFD_HOST_64_BIT
 112 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
 113    (e.g. i386-windows) so try it.  */
 114 #define LONGEST BFD_HOST_64_BIT
 115 #define ULONGEST BFD_HOST_U_64_BIT
 116 #else
 117 #define LONGEST long
 118 #define ULONGEST unsigned long
 119 #endif
 120 #endif
 121
 122 #endif /* No BFD64 */
 123
 124 #endif /* ! LONGEST */
 125
 126 #ifndef min
 127 #define min(a, b) ((a) < (b) ? (a) : (b))
 128 #endif
 129 #ifndef max
 130 #define max(a, b) ((a) > (b) ? (a) : (b))
 131 #endif
 132
 133 /* Macros to do string compares.
 134
 135    NOTE: cagney/2000-03-14:
 136
 137    While old code can continue to refer to these macros, new code is
 138    probably better off using strcmp() directly vis: ``strcmp() == 0''
 139    and ``strcmp() != 0''.
 140
 141    This is because modern compilers can directly inline strcmp()
 142    making the original justification for these macros - avoid function
 143    call overhead by pre-testing the first characters
 144    (``*X==*Y?...:0'') - redundant.
 145
 146    ``Even if [...] testing the first character does have a modest
 147    performance improvement, I'd rather that whenever a performance
 148    issue is found that we spend the effort on algorithmic
 149    optimizations than micro-optimizing.'' J.T. */
 150
 151 #define STREQ(a,b) (*(a) == *(b) ? !strcmp ((a), (b)) : 0)
 152 #define STREQN(a,b,c) (*(a) == *(b) ? !strncmp ((a), (b), (c)) : 0)
 153
 154 /* The character GNU C++ uses to build identifiers that must be unique from
 155    the program's identifiers (such as $this and $$vptr).  */
 156 #define CPLUS_MARKER '$'        /* May be overridden to '.' for SysV */
 157
 158 /* Check if a character is one of the commonly used C++ marker characters.  */
 159 extern int is_cplus_marker (int);
 160
 161 /* use tui interface if non-zero */
 162 extern int tui_version;
 163
 164 /* enable xdb commands if set */
 165 extern int xdb_commands;
 166
 167 /* enable dbx commands if set */
 168 extern int dbx_commands;
 169
 170 extern int quit_flag;
 171 extern int immediate_quit;
 172 extern int sevenbit_strings;
 173
 174 extern void quit (void);
 175
 176 /* FIXME: cagney/2000-03-13: It has been suggested that the peformance
 177    benefits of having a ``QUIT'' macro rather than a function are
 178    marginal.  If the overhead of a QUIT function call is proving
 179    significant then its calling frequency should probably be reduced
 180    [kingdon].  A profile analyzing the current situtation is
 181    needed. */
 182
 183 #ifdef QUIT
 184 /* do twice to force compiler warning */
 185 #define QUIT_FIXME "FIXME"
 186 #define QUIT_FIXME "ignoring redefinition of QUIT"
 187 #else
 188 #define QUIT { \
 189   if (quit_flag) quit (); \
 190   if (interactive_hook) interactive_hook (); \
 191   PROGRESS (1); \
 192 }
 193 #endif
 194
 195 /* Languages represented in the symbol table and elsewhere.
 196    This should probably be in language.h, but since enum's can't
 197    be forward declared to satisfy opaque references before their
 198    actual definition, needs to be here. */
 199
 200 enum language
 201   {
 202     language_unknown,           /* Language not known */
 203     language_auto,              /* Placeholder for automatic setting */
 204     language_c,                 /* C */
 205     language_cplus,             /* C++ */
 206     language_java,              /* Java */
 207     language_chill,             /* Chill */
 208     language_fortran,           /* Fortran */
 209     language_m2,                /* Modula-2 */
 210     language_asm,               /* Assembly language */
 211     language_scm,               /* Scheme / Guile */
 212     language_pascal             /* Pascal */
 213   };
 214
 215 enum precision_type
 216   {
 217     single_precision,
 218     double_precision,
 219     unspecified_precision
 220   };
 221
 222 /* The numbering of these signals is chosen to match traditional unix
 223    signals (insofar as various unices use the same numbers, anyway).
 224    It is also the numbering of the GDB remote protocol.  Other remote
 225    protocols, if they use a different numbering, should make sure to
 226    translate appropriately.
 227
 228    Since these numbers have actually made it out into other software
 229    (stubs, etc.), you mustn't disturb the assigned numbering.  If you
 230    need to add new signals here, add them to the end of the explicitly
 231    numbered signals.
 232
 233    This is based strongly on Unix/POSIX signals for several reasons:
 234    (1) This set of signals represents a widely-accepted attempt to
 235    represent events of this sort in a portable fashion, (2) we want a
 236    signal to make it from wait to child_wait to the user intact, (3) many
 237    remote protocols use a similar encoding.  However, it is
 238    recognized that this set of signals has limitations (such as not
 239    distinguishing between various kinds of SIGSEGV, or not
 240    distinguishing hitting a breakpoint from finishing a single step).
 241    So in the future we may get around this either by adding additional
 242    signals for breakpoint, single-step, etc., or by adding signal
 243    codes; the latter seems more in the spirit of what BSD, System V,
 244    etc. are doing to address these issues.  */
 245
 246 /* For an explanation of what each signal means, see
 247    target_signal_to_string.  */
 248
 249 enum target_signal
 250   {
 251     /* Used some places (e.g. stop_signal) to record the concept that
 252        there is no signal.  */
 253     TARGET_SIGNAL_0 = 0,
 254     TARGET_SIGNAL_FIRST = 0,
 255     TARGET_SIGNAL_HUP = 1,
 256     TARGET_SIGNAL_INT = 2,
 257     TARGET_SIGNAL_QUIT = 3,
 258     TARGET_SIGNAL_ILL = 4,
 259     TARGET_SIGNAL_TRAP = 5,
 260     TARGET_SIGNAL_ABRT = 6,
 261     TARGET_SIGNAL_EMT = 7,
 262     TARGET_SIGNAL_FPE = 8,
 263     TARGET_SIGNAL_KILL = 9,
 264     TARGET_SIGNAL_BUS = 10,
 265     TARGET_SIGNAL_SEGV = 11,
 266     TARGET_SIGNAL_SYS = 12,
 267     TARGET_SIGNAL_PIPE = 13,
 268     TARGET_SIGNAL_ALRM = 14,
 269     TARGET_SIGNAL_TERM = 15,
 270     TARGET_SIGNAL_URG = 16,
 271     TARGET_SIGNAL_STOP = 17,
 272     TARGET_SIGNAL_TSTP = 18,
 273     TARGET_SIGNAL_CONT = 19,
 274     TARGET_SIGNAL_CHLD = 20,
 275     TARGET_SIGNAL_TTIN = 21,
 276     TARGET_SIGNAL_TTOU = 22,
 277     TARGET_SIGNAL_IO = 23,
 278     TARGET_SIGNAL_XCPU = 24,
 279     TARGET_SIGNAL_XFSZ = 25,
 280     TARGET_SIGNAL_VTALRM = 26,
 281     TARGET_SIGNAL_PROF = 27,
 282     TARGET_SIGNAL_WINCH = 28,
 283     TARGET_SIGNAL_LOST = 29,
 284     TARGET_SIGNAL_USR1 = 30,
 285     TARGET_SIGNAL_USR2 = 31,
 286     TARGET_SIGNAL_PWR = 32,
 287     /* Similar to SIGIO.  Perhaps they should have the same number.  */
 288     TARGET_SIGNAL_POLL = 33,
 289     TARGET_SIGNAL_WIND = 34,
 290     TARGET_SIGNAL_PHONE = 35,
 291     TARGET_SIGNAL_WAITING = 36,
 292     TARGET_SIGNAL_LWP = 37,
 293     TARGET_SIGNAL_DANGER = 38,
 294     TARGET_SIGNAL_GRANT = 39,
 295     TARGET_SIGNAL_RETRACT = 40,
 296     TARGET_SIGNAL_MSG = 41,
 297     TARGET_SIGNAL_SOUND = 42,
 298     TARGET_SIGNAL_SAK = 43,
 299     TARGET_SIGNAL_PRIO = 44,
 300     TARGET_SIGNAL_REALTIME_33 = 45,
 301     TARGET_SIGNAL_REALTIME_34 = 46,
 302     TARGET_SIGNAL_REALTIME_35 = 47,
 303     TARGET_SIGNAL_REALTIME_36 = 48,
 304     TARGET_SIGNAL_REALTIME_37 = 49,
 305     TARGET_SIGNAL_REALTIME_38 = 50,
 306     TARGET_SIGNAL_REALTIME_39 = 51,
 307     TARGET_SIGNAL_REALTIME_40 = 52,
 308     TARGET_SIGNAL_REALTIME_41 = 53,
 309     TARGET_SIGNAL_REALTIME_42 = 54,
 310     TARGET_SIGNAL_REALTIME_43 = 55,
 311     TARGET_SIGNAL_REALTIME_44 = 56,
 312     TARGET_SIGNAL_REALTIME_45 = 57,
 313     TARGET_SIGNAL_REALTIME_46 = 58,
 314     TARGET_SIGNAL_REALTIME_47 = 59,
 315     TARGET_SIGNAL_REALTIME_48 = 60,
 316     TARGET_SIGNAL_REALTIME_49 = 61,
 317     TARGET_SIGNAL_REALTIME_50 = 62,
 318     TARGET_SIGNAL_REALTIME_51 = 63,
 319     TARGET_SIGNAL_REALTIME_52 = 64,
 320     TARGET_SIGNAL_REALTIME_53 = 65,
 321     TARGET_SIGNAL_REALTIME_54 = 66,
 322     TARGET_SIGNAL_REALTIME_55 = 67,
 323     TARGET_SIGNAL_REALTIME_56 = 68,
 324     TARGET_SIGNAL_REALTIME_57 = 69,
 325     TARGET_SIGNAL_REALTIME_58 = 70,
 326     TARGET_SIGNAL_REALTIME_59 = 71,
 327     TARGET_SIGNAL_REALTIME_60 = 72,
 328     TARGET_SIGNAL_REALTIME_61 = 73,
 329     TARGET_SIGNAL_REALTIME_62 = 74,
 330     TARGET_SIGNAL_REALTIME_63 = 75,
 331
 332     /* Used internally by Solaris threads.  See signal(5) on Solaris.  */
 333     TARGET_SIGNAL_CANCEL = 76,
 334
 335     /* Yes, this pains me, too.  But LynxOS didn't have SIG32, and now
 336        Linux does, and we can't disturb the numbering, since it's part
 337        of the remote protocol.  Note that in some GDB's
 338        TARGET_SIGNAL_REALTIME_32 is number 76.  */
 339     TARGET_SIGNAL_REALTIME_32,
 340     /* Yet another pain, IRIX 6 has SIG64. */
 341     TARGET_SIGNAL_REALTIME_64,
 342     /* Yet another pain, Linux/MIPS might go up to 128. */
 343     TARGET_SIGNAL_REALTIME_65,
 344     TARGET_SIGNAL_REALTIME_66,
 345     TARGET_SIGNAL_REALTIME_67,
 346     TARGET_SIGNAL_REALTIME_68,
 347     TARGET_SIGNAL_REALTIME_69,
 348     TARGET_SIGNAL_REALTIME_70,
 349     TARGET_SIGNAL_REALTIME_71,
 350     TARGET_SIGNAL_REALTIME_72,
 351     TARGET_SIGNAL_REALTIME_73,
 352     TARGET_SIGNAL_REALTIME_74,
 353     TARGET_SIGNAL_REALTIME_75,
 354     TARGET_SIGNAL_REALTIME_76,
 355     TARGET_SIGNAL_REALTIME_77,
 356     TARGET_SIGNAL_REALTIME_78,
 357     TARGET_SIGNAL_REALTIME_79,
 358     TARGET_SIGNAL_REALTIME_80,
 359     TARGET_SIGNAL_REALTIME_81,
 360     TARGET_SIGNAL_REALTIME_82,
 361     TARGET_SIGNAL_REALTIME_83,
 362     TARGET_SIGNAL_REALTIME_84,
 363     TARGET_SIGNAL_REALTIME_85,
 364     TARGET_SIGNAL_REALTIME_86,
 365     TARGET_SIGNAL_REALTIME_87,
 366     TARGET_SIGNAL_REALTIME_88,
 367     TARGET_SIGNAL_REALTIME_89,
 368     TARGET_SIGNAL_REALTIME_90,
 369     TARGET_SIGNAL_REALTIME_91,
 370     TARGET_SIGNAL_REALTIME_92,
 371     TARGET_SIGNAL_REALTIME_93,
 372     TARGET_SIGNAL_REALTIME_94,
 373     TARGET_SIGNAL_REALTIME_95,
 374     TARGET_SIGNAL_REALTIME_96,
 375     TARGET_SIGNAL_REALTIME_97,
 376     TARGET_SIGNAL_REALTIME_98,
 377     TARGET_SIGNAL_REALTIME_99,
 378     TARGET_SIGNAL_REALTIME_100,
 379     TARGET_SIGNAL_REALTIME_101,
 380     TARGET_SIGNAL_REALTIME_102,
 381     TARGET_SIGNAL_REALTIME_103,
 382     TARGET_SIGNAL_REALTIME_104,
 383     TARGET_SIGNAL_REALTIME_105,
 384     TARGET_SIGNAL_REALTIME_106,
 385     TARGET_SIGNAL_REALTIME_107,
 386     TARGET_SIGNAL_REALTIME_108,
 387     TARGET_SIGNAL_REALTIME_109,
 388     TARGET_SIGNAL_REALTIME_110,
 389     TARGET_SIGNAL_REALTIME_111,
 390     TARGET_SIGNAL_REALTIME_112,
 391     TARGET_SIGNAL_REALTIME_113,
 392     TARGET_SIGNAL_REALTIME_114,
 393     TARGET_SIGNAL_REALTIME_115,
 394     TARGET_SIGNAL_REALTIME_116,
 395     TARGET_SIGNAL_REALTIME_117,
 396     TARGET_SIGNAL_REALTIME_118,
 397     TARGET_SIGNAL_REALTIME_119,
 398     TARGET_SIGNAL_REALTIME_120,
 399     TARGET_SIGNAL_REALTIME_121,
 400     TARGET_SIGNAL_REALTIME_122,
 401     TARGET_SIGNAL_REALTIME_123,
 402     TARGET_SIGNAL_REALTIME_124,
 403     TARGET_SIGNAL_REALTIME_125,
 404     TARGET_SIGNAL_REALTIME_126,
 405     TARGET_SIGNAL_REALTIME_127,
 406
 407 #if defined(MACH) || defined(__MACH__)
 408     /* Mach exceptions */
 409     TARGET_EXC_BAD_ACCESS,
 410     TARGET_EXC_BAD_INSTRUCTION,
 411     TARGET_EXC_ARITHMETIC,
 412     TARGET_EXC_EMULATION,
 413     TARGET_EXC_SOFTWARE,
 414     TARGET_EXC_BREAKPOINT,
 415 #endif
 416     TARGET_SIGNAL_INFO,
 417
 418     /* Some signal we don't know about.  */
 419     TARGET_SIGNAL_UNKNOWN,
 420
 421     /* Use whatever signal we use when one is not specifically specified
 422        (for passing to proceed and so on).  */
 423     TARGET_SIGNAL_DEFAULT,
 424
 425     /* Last and unused enum value, for sizing arrays, etc.  */
 426     TARGET_SIGNAL_LAST
 427   };
 428
 429 /* the cleanup list records things that have to be undone
 430    if an error happens (descriptors to be closed, memory to be freed, etc.)
 431    Each link in the chain records a function to call and an
 432    argument to give it.
 433
 434    Use make_cleanup to add an element to the cleanup chain.
 435    Use do_cleanups to do all cleanup actions back to a given
 436    point in the chain.  Use discard_cleanups to remove cleanups
 437    from the chain back to a given point, not doing them.  */
 438
 439 struct cleanup
 440   {
 441     struct cleanup *next;
 442     void (*function) (PTR);
 443     PTR arg;
 444   };
 445
 446
 447 /* The ability to declare that a function never returns is useful, but
 448    not really required to compile GDB successfully, so the NORETURN and
 449    ATTR_NORETURN macros normally expand into nothing.  */
 450
 451 /* If compiling with older versions of GCC, a function may be declared
 452    "volatile" to indicate that it does not return.  */
 453
 454 #ifndef NORETURN
 455 #if defined(__GNUC__) \
 456      && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
 457 #define NORETURN volatile
 458 #else
 459 #define NORETURN                /* nothing */
 460 #endif
 461 #endif
 462
 463 /* GCC 2.5 and later versions define a function attribute "noreturn",
 464    which is the preferred way to declare that a function never returns.
 465    However GCC 2.7 appears to be the first version in which this fully
 466    works everywhere we use it. */
 467
 468 #ifndef ATTR_NORETURN
 469 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
 470 #define ATTR_NORETURN __attribute__ ((noreturn))
 471 #else
 472 #define ATTR_NORETURN           /* nothing */
 473 #endif
 474 #endif
 475
 476 #ifndef ATTR_FORMAT
 477 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 4))
 478 #define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
 479 #else
 480 #define ATTR_FORMAT(type, x, y) /* nothing */
 481 #endif
 482 #endif
 483
 484 /* Needed for various prototypes */
 485
 486 struct symtab;
 487 struct breakpoint;
 488
 489 /* From blockframe.c */
 490
 491 extern int inside_entry_func (CORE_ADDR);
 492
 493 extern int inside_entry_file (CORE_ADDR addr);
 494
 495 extern int inside_main_func (CORE_ADDR pc);
 496
 497 /* From ch-lang.c, for the moment. (FIXME) */
 498
 499 extern char *chill_demangle (const char *);
 500
 501 /* From utils.c */
 502
 503 extern void initialize_utils (void);
 504
 505 extern void notice_quit (void);
 506
 507 extern int strcmp_iw (const char *, const char *);
 508
 509 extern int subset_compare (char *, char *);
 510
 511 extern char *safe_strerror (int);
 512
 513 extern void init_malloc (void *);
 514
 515 extern void request_quit (int);
 516
 517 extern void do_cleanups (struct cleanup *);
 518 extern void do_final_cleanups (struct cleanup *);
 519 extern void do_my_cleanups (struct cleanup **, struct cleanup *);
 520 extern void do_run_cleanups (struct cleanup *);
 521 extern void do_exec_cleanups (struct cleanup *);
 522 extern void do_exec_error_cleanups (struct cleanup *);
 523
 524 extern void discard_cleanups (struct cleanup *);
 525 extern void discard_final_cleanups (struct cleanup *);
 526 extern void discard_exec_error_cleanups (struct cleanup *);
 527 extern void discard_my_cleanups (struct cleanup **, struct cleanup *);
 528
 529 /* NOTE: cagney/2000-03-04: This typedef is strictly for the
 530    make_cleanup function declarations below. Do not use this typedef
 531    as a cast when passing functions into the make_cleanup() code.
 532    Instead either use a bounce function or add a wrapper function.
 533    Calling a f(char*) function with f(void*) is non-portable. */
 534 typedef void (make_cleanup_ftype) (void *);
 535
 536 extern struct cleanup *make_cleanup (make_cleanup_ftype *, void *);
 537
 538 extern struct cleanup *make_cleanup_freeargv (char **);
 539
 540 struct ui_file;
 541 extern struct cleanup *make_cleanup_ui_file_delete (struct ui_file *);
 542
 543 extern struct cleanup *make_cleanup_close (int fd);
 544
 545 extern struct cleanup *make_cleanup_bfd_close (bfd *abfd);
 546
 547 extern struct cleanup *make_final_cleanup (make_cleanup_ftype *, void *);
 548
 549 extern struct cleanup *make_my_cleanup (struct cleanup **,
 550                                         make_cleanup_ftype *, void *);
 551
 552 extern struct cleanup *make_run_cleanup (make_cleanup_ftype *, void *);
 553
 554 extern struct cleanup *make_exec_cleanup (make_cleanup_ftype *, void *);
 555 extern struct cleanup *make_exec_error_cleanup (make_cleanup_ftype *, void *);
 556
 557 extern struct cleanup *save_cleanups (void);
 558 extern struct cleanup *save_final_cleanups (void);
 559 extern struct cleanup *save_my_cleanups (struct cleanup **);
 560
 561 extern void restore_cleanups (struct cleanup *);
 562 extern void restore_final_cleanups (struct cleanup *);
 563 extern void restore_my_cleanups (struct cleanup **, struct cleanup *);
 564
 565 extern void free_current_contents (void *);
 566
 567 extern void null_cleanup (void *);
 568
 569 extern int myread (int, char *, int);
 570
 571 extern int query (char *, ...) ATTR_FORMAT (printf, 1, 2);
 572
 573 extern void init_page_info (void);
 574
 575 extern CORE_ADDR host_pointer_to_address (void *ptr);
 576 extern void *address_to_host_pointer (CORE_ADDR addr);
 577
 578 extern char *gdb_realpath (const char *);
 579
 580 /* From demangle.c */
 581
 582 extern void set_demangling_style (char *);
 583
 584 /* From tm.h */
 585
 586 struct type;
 587 typedef int (use_struct_convention_fn) (int gcc_p, struct type * value_type);
 588 extern use_struct_convention_fn generic_use_struct_convention;
 589
 590 typedef unsigned char *(breakpoint_from_pc_fn) (CORE_ADDR * pcptr, int *lenptr);
 591 \f
 592 /* Annotation stuff.  */
 593
 594 extern int annotation_level;    /* in stack.c */
 595 \f
 596 extern void begin_line (void);
 597
 598 extern void wrap_here (char *);
 599
 600 extern void reinitialize_more_filter (void);
 601
 602 /* Normal results */
 603 extern struct ui_file *gdb_stdout;
 604 /* Serious error notifications */
 605 extern struct ui_file *gdb_stderr;
 606 /* Log/debug/trace messages that should bypass normal stdout/stderr
 607    filtering.  For momement, always call this stream using
 608    *_unfiltered. In the very near future that restriction shall be
 609    removed - either call shall be unfiltered. (cagney 1999-06-13). */
 610 extern struct ui_file *gdb_stdlog;
 611 /* Target output that should bypass normal stdout/stderr filtering.
 612    For momement, always call this stream using *_unfiltered. In the
 613    very near future that restriction shall be removed - either call
 614    shall be unfiltered. (cagney 1999-07-02). */
 615 extern struct ui_file *gdb_stdtarg;
 616
 617 #if defined(TUI)
 618 #include "tui.h"
 619 #endif
 620
 621 #include "ui-file.h"
 622
 623 /* More generic printf like operations.  Filtered versions may return
 624    non-locally on error.  */
 625
 626 extern void fputs_filtered (const char *, struct ui_file *);
 627
 628 extern void fputs_unfiltered (const char *, struct ui_file *);
 629
 630 extern int fputc_filtered (int c, struct ui_file *);
 631
 632 extern int fputc_unfiltered (int c, struct ui_file *);
 633
 634 extern int putchar_filtered (int c);
 635
 636 extern int putchar_unfiltered (int c);
 637
 638 extern void puts_filtered (const char *);
 639
 640 extern void puts_unfiltered (const char *);
 641
 642 extern void puts_debug (char *prefix, char *string, char *suffix);
 643
 644 extern void vprintf_filtered (const char *, va_list) ATTR_FORMAT (printf, 1, 0);
 645
 646 extern void vfprintf_filtered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0);
 647
 648 extern void fprintf_filtered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3);
 649
 650 extern void fprintfi_filtered (int, struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 3, 4);
 651
 652 extern void printf_filtered (const char *, ...) ATTR_FORMAT (printf, 1, 2);
 653
 654 extern void printfi_filtered (int, const char *, ...) ATTR_FORMAT (printf, 2, 3);
 655
 656 extern void vprintf_unfiltered (const char *, va_list) ATTR_FORMAT (printf, 1, 0);
 657
 658 extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0);
 659
 660 extern void fprintf_unfiltered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3);
 661
 662 extern void printf_unfiltered (const char *, ...) ATTR_FORMAT (printf, 1, 2);
 663
 664 extern void print_spaces (int, struct ui_file *);
 665
 666 extern void print_spaces_filtered (int, struct ui_file *);
 667
 668 extern char *n_spaces (int);
 669
 670 extern void fputstr_filtered (const char *str, int quotr, struct ui_file * stream);
 671
 672 extern void fputstr_unfiltered (const char *str, int quotr, struct ui_file * stream);
 673
 674 extern void fputstrn_unfiltered (const char *str, int n, int quotr, struct ui_file * stream);
 675
 676 /* Display the host ADDR on STREAM formatted as ``0x%x''. */
 677 extern void gdb_print_host_address (void *addr, struct ui_file *stream);
 678
 679 /* Convert a CORE_ADDR into a HEX string.  paddr() is like %08lx.
 680    paddr_nz() is like %lx.  paddr_u() is like %lu. paddr_width() is
 681    for ``%*''. */
 682 extern int strlen_paddr (void);
 683 extern char *paddr (CORE_ADDR addr);
 684 extern char *paddr_nz (CORE_ADDR addr);
 685 extern char *paddr_u (CORE_ADDR addr);
 686 extern char *paddr_d (LONGEST addr);
 687
 688 extern char *phex (ULONGEST l, int sizeof_l);
 689 extern char *phex_nz (ULONGEST l, int sizeof_l);
 690
 691 /* Like paddr() only print/scan raw CORE_ADDR.  The output from
 692    core_addr_to_string() can be passed direct to
 693    string_to_core_addr().  */
 694 extern const char *core_addr_to_string (const CORE_ADDR addr);
 695 extern CORE_ADDR string_to_core_addr (const char *my_string);
 696
 697 extern void fprintf_symbol_filtered (struct ui_file *, char *,
 698                                      enum language, int);
 699
 700 extern NORETURN void perror_with_name (char *) ATTR_NORETURN;
 701
 702 extern void print_sys_errmsg (char *, int);
 703
 704 /* From regex.c or libc.  BSD 4.4 declares this with the argument type as
 705    "const char *" in unistd.h, so we can't declare the argument
 706    as "char *".  */
 707
 708 extern char *re_comp (const char *);
 709
 710 /* From symfile.c */
 711
 712 extern void symbol_file_command (char *, int);
 713
 714 /* Remote targets may wish to use this as their load function.  */
 715 extern void generic_load (char *name, int from_tty);
 716
 717 /* Summarise a download */
 718 extern void print_transfer_performance (struct ui_file *stream,
 719                                         unsigned long data_count,
 720                                         unsigned long write_count,
 721                                         unsigned long time_count);
 722
 723 /* From top.c */
 724
 725 typedef void initialize_file_ftype (void);
 726
 727 extern char *skip_quoted (char *);
 728
 729 extern char *gdb_readline (char *);
 730
 731 extern char *command_line_input (char *, int, char *);
 732
 733 extern void print_prompt (void);
 734
 735 extern int input_from_terminal_p (void);
 736
 737 extern int info_verbose;
 738
 739 /* From printcmd.c */
 740
 741 extern void set_next_address (CORE_ADDR);
 742
 743 extern void print_address_symbolic (CORE_ADDR, struct ui_file *, int,
 744                                     char *);
 745
 746 extern int build_address_symbolic (CORE_ADDR addr,
 747                                    int do_demangle,
 748                                    char **name,
 749                                    int *offset,
 750                                    char **filename,
 751                                    int *line,
 752                                    int *unmapped);
 753
 754 extern void print_address_numeric (CORE_ADDR, int, struct ui_file *);
 755
 756 extern void print_address (CORE_ADDR, struct ui_file *);
 757
 758 /* From source.c */
 759
 760 extern int openp (const char *, int, const char *, int, int, char **);
 761
 762 extern int source_full_path_of (char *, char **);
 763
 764 extern void mod_path (char *, char **);
 765
 766 extern void directory_command (char *, int);
 767
 768 extern void init_source_path (void);
 769
 770 extern char *symtab_to_filename (struct symtab *);
 771
 772 /* From exec.c */
 773
 774 extern void exec_set_section_offsets (bfd_signed_vma text_off,
 775                                       bfd_signed_vma data_off,
 776                                       bfd_signed_vma bss_off);
 777
 778 /* Take over the 'find_mapped_memory' vector from exec.c. */
 779 extern void exec_set_find_memory_regions (int (*) (int (*) (CORE_ADDR,
 780                                                             unsigned long,
 781                                                             int, int, int,
 782                                                             void *),
 783                                                    void *));
 784
 785 /* From findvar.c */
 786
 787 extern int read_relative_register_raw_bytes (int, char *);
 788
 789 /* Possible lvalue types.  Like enum language, this should be in
 790    value.h, but needs to be here for the same reason. */
 791
 792 enum lval_type
 793   {
 794     /* Not an lval. */
 795     not_lval,
 796     /* In memory.  Could be a saved register.  */
 797     lval_memory,
 798     /* In a register.  */
 799     lval_register,
 800     /* In a gdb internal variable.  */
 801     lval_internalvar,
 802     /* Part of a gdb internal variable (structure field).  */
 803     lval_internalvar_component,
 804     /* In a register series in a frame not the current one, which may have been
 805        partially saved or saved in different places (otherwise would be
 806        lval_register or lval_memory).  */
 807     lval_reg_frame_relative
 808   };
 809
 810 struct frame_info;
 811
 812 /* From readline (but not in any readline .h files).  */
 813
 814 extern char *tilde_expand (char *);
 815
 816 /* Control types for commands */
 817
 818 enum misc_command_type
 819   {
 820     ok_command,
 821     end_command,
 822     else_command,
 823     nop_command
 824   };
 825
 826 enum command_control_type
 827   {
 828     simple_control,
 829     break_control,
 830     continue_control,
 831     while_control,
 832     if_control,
 833     invalid_control
 834   };
 835
 836 /* Structure for saved commands lines
 837    (for breakpoints, defined commands, etc).  */
 838
 839 struct command_line
 840   {
 841     struct command_line *next;
 842     char *line;
 843     enum command_control_type control_type;
 844     int body_count;
 845     struct command_line **body_list;
 846   };
 847
 848 extern struct command_line *read_command_lines (char *, int);
 849
 850 extern void free_command_lines (struct command_line **);
 851
 852 /* To continue the execution commands when running gdb asynchronously.
 853    A continuation structure contains a pointer to a function to be called
 854    to finish the command, once the target has stopped. Such mechanism is
 855    used bt the finish and until commands, and in the remote protocol
 856    when opening an extended-remote connection. */
 857
 858 struct continuation_arg
 859   {
 860     struct continuation_arg *next;
 861     union continuation_data {
 862       void *pointer;
 863       int   integer;
 864       long  longint;
 865     } data;
 866   };
 867
 868 struct continuation
 869   {
 870     void (*continuation_hook) (struct continuation_arg *);
 871     struct continuation_arg *arg_list;
 872     struct continuation *next;
 873   };
 874
 875 /* In infrun.c. */
 876 extern struct continuation *cmd_continuation;
 877 /* Used only by the step_1 function. */
 878 extern struct continuation *intermediate_continuation;
 879
 880 /* From utils.c */
 881 extern void add_continuation (void (*)(struct continuation_arg *),
 882                               struct continuation_arg *);
 883 extern void do_all_continuations (void);
 884 extern void discard_all_continuations (void);
 885
 886 extern void add_intermediate_continuation (void (*)(struct continuation_arg *),
 887                               struct continuation_arg *);
 888 extern void do_all_intermediate_continuations (void);
 889 extern void discard_all_intermediate_continuations (void);
 890
 891 /* String containing the current directory (what getwd would return).  */
 892
 893 extern char *current_directory;
 894
 895 /* Default radixes for input and output.  Only some values supported.  */
 896 extern unsigned input_radix;
 897 extern unsigned output_radix;
 898
 899 /* Possibilities for prettyprint parameters to routines which print
 900    things.  Like enum language, this should be in value.h, but needs
 901    to be here for the same reason.  FIXME:  If we can eliminate this
 902    as an arg to LA_VAL_PRINT, then we can probably move it back to
 903    value.h. */
 904
 905 enum val_prettyprint
 906   {
 907     Val_no_prettyprint = 0,
 908     Val_prettyprint,
 909     /* Use the default setting which the user has specified.  */
 910     Val_pretty_default
 911   };
 912
 913 /* The ptid struct is a collection of the various "ids" necessary
 914    for identifying the inferior.  This consists of the process id
 915    (pid), thread id (tid), and other fields necessary for uniquely
 916    identifying the inferior process/thread being debugged.  When
 917    manipulating ptids, the constructors, accessors, and predicate
 918    declared in inferior.h should be used.  These are as follows:
 919
 920       ptid_build        - Make a new ptid from a pid, lwp, and tid.
 921       pid_to_ptid       - Make a new ptid from just a pid.
 922       ptid_get_pid      - Fetch the pid component of a ptid.
 923       ptid_get_lwp      - Fetch the lwp component of a ptid.
 924       ptid_get_tid      - Fetch the tid component of a ptid.
 925       ptid_equal        - Test to see if two ptids are equal.
 926
 927    Please do NOT access the struct ptid members directly (except, of
 928    course, in the implementation of the above ptid manipulation
 929    functions).  */
 930
 931 struct ptid
 932   {
 933     /* Process id */
 934     int pid;
 935
 936     /* Lightweight process id */
 937     long lwp;
 938
 939     /* Thread id */
 940     long tid;
 941   };
 942
 943 typedef struct ptid ptid_t;
 944
 945 \f
 946
 947 /* Optional host machine definition.  Pure autoconf targets will not
 948    need a "xm.h" file.  This will be a symlink to one of the xm-*.h
 949    files, built by the `configure' script.  */
 950
 951 #ifdef GDB_XM_FILE
 952 #include "xm.h"
 953 #endif
 954
 955 /* Optional native machine support.  Non-native (and possibly pure
 956    multi-arch) targets do not need a "nm.h" file.  This will be a
 957    symlink to one of the nm-*.h files, built by the `configure'
 958    script.  */
 959
 960 #ifdef GDB_NM_FILE
 961 #include "nm.h"
 962 #endif
 963
 964 /* Optional target machine definition.  Pure multi-arch configurations
 965    do not need a "tm.h" file.  This will be a symlink to one of the
 966    tm-*.h files, built by the `configure' script.  */
 967
 968 #ifdef GDB_TM_FILE
 969 #include "tm.h"
 970 #endif
 971
 972 /* GDB_MULTI_ARCH is normally set by configure.in using information
 973    from configure.tgt or the config/%/%.mt Makefile fragment.  Since
 974    some targets have defined it in their "tm.h" file, delay providing
 975    a default definition until after "tm.h" has been included.. */
 976
 977 #ifndef GDB_MULTI_ARCH
 978 #define GDB_MULTI_ARCH 0
 979 #endif
 980
 981
 982 /* If the xm.h file did not define the mode string used to open the
 983    files, assume that binary files are opened the same way as text
 984    files */
 985 #ifndef FOPEN_RB
 986 #include "fopen-same.h"
 987 #endif
 988
 989 #define CONST_PTR const
 990
 991 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
 992    FIXME: Assumes 2's complement arithmetic */
 993
 994 #if !defined (UINT_MAX)
 995 #define UINT_MAX ((unsigned int)(~0))   /* 0xFFFFFFFF for 32-bits */
 996 #endif
 997
 998 #if !defined (INT_MAX)
 999 #define INT_MAX ((int)(UINT_MAX >> 1))  /* 0x7FFFFFFF for 32-bits */
1000 #endif
1001
1002 #if !defined (INT_MIN)
1003 #define INT_MIN ((int)((int) ~0 ^ INT_MAX))     /* 0x80000000 for 32-bits */
1004 #endif
1005
1006 #if !defined (ULONG_MAX)
1007 #define ULONG_MAX ((unsigned long)(~0L))        /* 0xFFFFFFFF for 32-bits */
1008 #endif
1009
1010 #if !defined (LONG_MAX)
1011 #define LONG_MAX ((long)(ULONG_MAX >> 1))       /* 0x7FFFFFFF for 32-bits */
1012 #endif
1013
1014 #if !defined (ULONGEST_MAX)
1015 #define ULONGEST_MAX (~(ULONGEST)0)        /* 0xFFFFFFFFFFFFFFFF for 64-bits */
1016 #endif
1017
1018 #if !defined (LONGEST_MAX)                 /* 0x7FFFFFFFFFFFFFFF for 64-bits */
1019 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
1020 #endif
1021
1022 /* Convert a LONGEST to an int.  This is used in contexts (e.g. number of
1023    arguments to a function, number in a value history, register number, etc.)
1024    where the value must not be larger than can fit in an int.  */
1025
1026 extern int longest_to_int (LONGEST);
1027
1028 /* Assorted functions we can declare, now that const and volatile are
1029    defined.  */
1030
1031 extern char *savestring (const char *, size_t);
1032
1033 extern char *msavestring (void *, const char *, size_t);
1034
1035 extern char *mstrsave (void *, const char *);
1036
1037 /* Robust versions of same.  Throw an internal error when no memory,
1038    guard against stray NULL arguments. */
1039 extern void *xmmalloc (void *md, size_t size);
1040 extern void *xmrealloc (void *md, void *ptr, size_t size);
1041 extern void *xmcalloc (void *md, size_t number, size_t size);
1042 extern void xmfree (void *md, void *ptr);
1043
1044 /* xmalloc(), xrealloc() and xcalloc() have already been declared in
1045    "libiberty.h". */
1046 extern void xfree (void *);
1047
1048 /* Like asprintf/vasprintf but get an internal_error if the call
1049    fails. */
1050 extern void xasprintf (char **ret, const char *format, ...) ATTR_FORMAT (printf, 2, 3);
1051 extern void xvasprintf (char **ret, const char *format, va_list ap);
1052
1053 extern int parse_escape (char **);
1054
1055 /* Message to be printed before the error message, when an error occurs.  */
1056
1057 extern char *error_pre_print;
1058
1059 /* Message to be printed before the error message, when an error occurs.  */
1060
1061 extern char *quit_pre_print;
1062
1063 /* Message to be printed before the warning message, when a warning occurs.  */
1064
1065 extern char *warning_pre_print;
1066
1067 extern NORETURN void verror (const char *fmt, va_list ap) ATTR_NORETURN;
1068
1069 extern NORETURN void error (const char *fmt, ...) ATTR_NORETURN;
1070
1071 extern NORETURN void error_stream (struct ui_file *) ATTR_NORETURN;
1072
1073 /* Returns a freshly allocate buffer containing the last error
1074    message.  */
1075 extern char *error_last_message (void);
1076
1077 extern NORETURN void internal_verror (const char *file, int line,
1078                                       const char *, va_list ap) ATTR_NORETURN;
1079
1080 extern NORETURN void internal_error (const char *file, int line,
1081                                      const char *, ...) ATTR_NORETURN ATTR_FORMAT (printf, 3, 4);
1082
1083 extern NORETURN void nomem (long) ATTR_NORETURN;
1084
1085 /* Reasons for calling throw_exception().  NOTE: all reason values
1086    must be less than zero.  enum value 0 is reserved for internal use
1087    as the return value from an initial setjmp().  The function
1088    catch_exceptions() reserves values >= 0 as legal results from its
1089    wrapped function.  */
1090
1091 enum return_reason
1092   {
1093     /* User interrupt.  */
1094     RETURN_QUIT = -2,
1095     /* Any other error.  */
1096     RETURN_ERROR
1097   };
1098
1099 #define ALL_CLEANUPS    ((struct cleanup *)0)
1100
1101 #define RETURN_MASK(reason)     (1 << (int)(-reason))
1102 #define RETURN_MASK_QUIT        RETURN_MASK (RETURN_QUIT)
1103 #define RETURN_MASK_ERROR       RETURN_MASK (RETURN_ERROR)
1104 #define RETURN_MASK_ALL         (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
1105 typedef int return_mask;
1106
1107 /* Throw an exception of type RETURN_REASON.  Will execute a LONG JUMP
1108    to the inner most containing exception handler established using
1109    catch_exceptions() (or the legacy catch_errors()).
1110
1111    Code normally throws an exception using error() et.al.  For various
1112    reaons, GDB also contains code that throws an exception directly.
1113    For instance, the remote*.c targets contain CNTRL-C signal handlers
1114    that propogate the QUIT event up the exception chain.  ``This could
1115    be a good thing or a dangerous thing.'' -- the Existential Wombat.  */
1116
1117 extern NORETURN void throw_exception (enum return_reason) ATTR_NORETURN;
1118
1119 /* Call FUNC(UIOUT, FUNC_ARGS) but wrapped within an exception
1120    handler.  If an exception (enum return_reason) is thrown using
1121    throw_exception() than all cleanups installed since
1122    catch_exceptions() was entered are invoked, the (-ve) exception
1123    value is then returned by catch_exceptions.  If FUNC() returns
1124    normally (with a postive or zero return value) then that value is
1125    returned by catch_exceptions().  It is an internal_error() for
1126    FUNC() to return a negative value.
1127
1128    For the period of the FUNC() call: UIOUT is installed as the output
1129    builder; ERRSTRING is installed as the error/quit message; and a
1130    new cleanup_chain is established.  The old values are restored
1131    before catch_exceptions() returns.
1132
1133    FIXME; cagney/2001-08-13: The need to override the global UIOUT
1134    builder variable should just go away.
1135
1136    This function superseeds catch_errors().
1137
1138    This function uses SETJMP() and LONGJUMP().  */
1139
1140 struct ui_out;
1141 typedef int (catch_exceptions_ftype) (struct ui_out *ui_out, void *args);
1142 extern int catch_exceptions (struct ui_out *uiout,
1143                              catch_exceptions_ftype *func, void *func_args,
1144                              char *errstring, return_mask mask);
1145
1146 /* If CATCH_ERRORS_FTYPE throws an error, catch_errors() returns zero
1147    otherwize the result from CATCH_ERRORS_FTYPE is returned. It is
1148    probably useful for CATCH_ERRORS_FTYPE to always return a non-zero
1149    value. It's unfortunate that, catch_errors() does not return an
1150    indication of the exact exception that it caught - quit_flag might
1151    help.
1152
1153    This function is superseeded by catch_exceptions().  */
1154
1155 typedef int (catch_errors_ftype) (PTR);
1156 extern int catch_errors (catch_errors_ftype *, PTR, char *, return_mask);
1157
1158 /* Template to catch_errors() that wraps calls to command
1159    functions. */
1160
1161 typedef void (catch_command_errors_ftype) (char *, int);
1162 extern int catch_command_errors (catch_command_errors_ftype *func, char *command, int from_tty, return_mask);
1163
1164 extern void warning (const char *, ...) ATTR_FORMAT (printf, 1, 2);
1165
1166 extern void vwarning (const char *, va_list args);
1167
1168 /* Global functions from other, non-gdb GNU thingies.
1169    Libiberty thingies are no longer declared here.  We include libiberty.h
1170    above, instead.  */
1171
1172 #ifndef GETENV_PROVIDED
1173 extern char *getenv (const char *);
1174 #endif
1175
1176 /* From other system libraries */
1177
1178 #ifdef HAVE_STDDEF_H
1179 #include <stddef.h>
1180 #endif
1181
1182 #ifdef HAVE_STDLIB_H
1183 #include <stdlib.h>
1184 #endif
1185 #ifndef min
1186 #define min(a, b) ((a) < (b) ? (a) : (b))
1187 #endif
1188 #ifndef max
1189 #define max(a, b) ((a) > (b) ? (a) : (b))
1190 #endif
1191
1192
1193 /* We take the address of fclose later, but some stdio's forget
1194    to declare this.  We can't always declare it since there's
1195    no way to declare the parameters without upsetting some compiler
1196    somewhere. */
1197
1198 #ifndef FCLOSE_PROVIDED
1199 extern int fclose (FILE *);
1200 #endif
1201
1202 #ifndef atof
1203 extern double atof (const char *);      /* X3.159-1989  4.10.1.1 */
1204 #endif
1205
1206 /* Various possibilities for alloca.  */
1207 #ifndef alloca
1208 #ifdef __GNUC__
1209 #define alloca __builtin_alloca
1210 #else /* Not GNU C */
1211 #ifdef HAVE_ALLOCA_H
1212 #include <alloca.h>
1213 #else
1214 #ifdef _AIX
1215 #pragma alloca
1216 #else
1217
1218 /* We need to be careful not to declare this in a way which conflicts with
1219    bison.  Bison never declares it as char *, but under various circumstances
1220    (like __hpux) we need to use void *.  */
1221 extern void *alloca ();
1222 #endif /* Not _AIX */
1223 #endif /* Not HAVE_ALLOCA_H */
1224 #endif /* Not GNU C */
1225 #endif /* alloca not defined */
1226
1227 /* Dynamic target-system-dependent parameters for GDB. */
1228 #include "gdbarch.h"
1229 #if (GDB_MULTI_ARCH == 0)
1230 /* Multi-arch targets _should_ be including "arch-utils.h" directly
1231    into their *-tdep.c file.  This is a prop to help old non-
1232    multi-arch targets to continue to compile. */
1233 #include "arch-utils.h"
1234 #endif
1235
1236 /* Static target-system-dependent parameters for GDB. */
1237
1238 /* Number of bits in a char or unsigned char for the target machine.
1239    Just like CHAR_BIT in <limits.h> but describes the target machine.  */
1240 #if !defined (TARGET_CHAR_BIT)
1241 #define TARGET_CHAR_BIT 8
1242 #endif
1243
1244 /* If we picked up a copy of CHAR_BIT from a configuration file
1245    (which may get it by including <limits.h>) then use it to set
1246    the number of bits in a host char.  If not, use the same size
1247    as the target. */
1248
1249 #if defined (CHAR_BIT)
1250 #define HOST_CHAR_BIT CHAR_BIT
1251 #else
1252 #define HOST_CHAR_BIT TARGET_CHAR_BIT
1253 #endif
1254
1255 /* The bit byte-order has to do just with numbering of bits in
1256    debugging symbols and such.  Conceptually, it's quite separate
1257    from byte/word byte order.  */
1258
1259 #if !defined (BITS_BIG_ENDIAN)
1260 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
1261 #endif
1262
1263 /* In findvar.c.  */
1264
1265 extern LONGEST extract_signed_integer (void *, int);
1266
1267 extern ULONGEST extract_unsigned_integer (void *, int);
1268
1269 extern int extract_long_unsigned_integer (void *, int, LONGEST *);
1270
1271 extern CORE_ADDR extract_address (void *, int);
1272
1273 extern CORE_ADDR extract_typed_address (void *buf, struct type *type);
1274
1275 extern void store_signed_integer (void *, int, LONGEST);
1276
1277 extern void store_unsigned_integer (void *, int, ULONGEST);
1278
1279 extern void store_address (void *, int, LONGEST);
1280
1281 extern void store_typed_address (void *buf, struct type *type, CORE_ADDR addr);
1282
1283 \f
1284 /* From valops.c */
1285
1286 extern CORE_ADDR push_bytes (CORE_ADDR, char *, int);
1287
1288 extern CORE_ADDR push_word (CORE_ADDR, ULONGEST);
1289
1290 extern int watchdog;
1291
1292 /* Hooks for alternate command interfaces.  */
1293
1294 /* The name of the interpreter if specified on the command line. */
1295 extern char *interpreter_p;
1296
1297 /* If a given interpreter matches INTERPRETER_P then it should update
1298    command_loop_hook and init_ui_hook with the per-interpreter
1299    implementation. */
1300 /* FIXME: command_loop_hook and init_ui_hook should be moved here. */
1301
1302 struct target_waitstatus;
1303 struct cmd_list_element;
1304
1305 /* Should the asynchronous variant of the interpreter (using the
1306    event-loop) be enabled? */
1307 extern int event_loop_p;
1308
1309 extern void (*init_ui_hook) (char *argv0);
1310 extern void (*command_loop_hook) (void);
1311 extern void (*show_load_progress) (const char *section,
1312                                    unsigned long section_sent,
1313                                    unsigned long section_size,
1314                                    unsigned long total_sent,
1315                                    unsigned long total_size);
1316 extern void (*print_frame_info_listing_hook) (struct symtab * s,
1317                                               int line, int stopline,
1318                                               int noerror);
1319 extern struct frame_info *parse_frame_specification (char *frame_exp);
1320 extern int (*query_hook) (const char *, va_list);
1321 extern void (*warning_hook) (const char *, va_list);
1322 extern void (*flush_hook) (struct ui_file * stream);
1323 extern void (*create_breakpoint_hook) (struct breakpoint * b);
1324 extern void (*delete_breakpoint_hook) (struct breakpoint * bpt);
1325 extern void (*modify_breakpoint_hook) (struct breakpoint * bpt);
1326 extern void (*interactive_hook) (void);
1327 extern void (*registers_changed_hook) (void);
1328 extern void (*readline_begin_hook) (char *,...);
1329 extern char *(*readline_hook) (char *);
1330 extern void (*readline_end_hook) (void);
1331 extern void (*register_changed_hook) (int regno);
1332 extern void (*memory_changed_hook) (CORE_ADDR addr, int len);
1333 extern void (*context_hook) (int);
1334 extern ptid_t (*target_wait_hook) (ptid_t ptid,
1335                                          struct target_waitstatus * status);
1336
1337 extern void (*attach_hook) (void);
1338 extern void (*detach_hook) (void);
1339 extern void (*call_command_hook) (struct cmd_list_element * c,
1340                                   char *cmd, int from_tty);
1341
1342 extern void (*set_hook) (struct cmd_list_element * c);
1343
1344 extern NORETURN void (*error_hook) (void) ATTR_NORETURN;
1345
1346 extern void (*error_begin_hook) (void);
1347
1348 extern int (*ui_load_progress_hook) (const char *section, unsigned long num);
1349
1350
1351 /* Inhibit window interface if non-zero. */
1352
1353 extern int use_windows;
1354
1355 /* Symbolic definitions of filename-related things.  */
1356 /* FIXME, this doesn't work very well if host and executable
1357    filesystems conventions are different.  */
1358
1359 #ifndef DIRNAME_SEPARATOR
1360 #define DIRNAME_SEPARATOR ':'
1361 #endif
1362
1363 #ifndef SLASH_STRING
1364 #define SLASH_STRING "/"
1365 #endif
1366
1367 #ifdef __MSDOS__
1368 # define CANT_FORK
1369 # define GLOBAL_CURDIR
1370 #endif
1371
1372 /* Provide default definitions of PIDGET, TIDGET, and MERGEPID.
1373    The name ``TIDGET'' is a historical accident.  Many uses of TIDGET
1374    in the code actually refer to a lightweight process id, i.e,
1375    something that can be considered a process id in its own right for
1376    certain purposes.  */
1377
1378 #ifndef PIDGET
1379 #define PIDGET(PTID) (ptid_get_pid (PTID))
1380 #define TIDGET(PTID) (ptid_get_lwp (PTID))
1381 #define MERGEPID(PID, TID) ptid_build (PID, TID, 0)
1382 #endif
1383
1384 /* Define well known filenos if the system does not define them.  */
1385 #ifndef STDIN_FILENO
1386 #define STDIN_FILENO   0
1387 #endif
1388 #ifndef STDOUT_FILENO
1389 #define STDOUT_FILENO  1
1390 #endif
1391 #ifndef STDERR_FILENO
1392 #define STDERR_FILENO  2
1393 #endif
1394
1395 /* If this definition isn't overridden by the header files, assume
1396    that isatty and fileno exist on this system.  */
1397 #ifndef ISATTY
1398 #define ISATTY(FP)      (isatty (fileno (FP)))
1399 #endif
1400
1401 #endif /* #ifndef DEFS_H */