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 multi-arched.  The MULTI-ARCH vector provides all
  77    definitions.  "tm.h" is included and may provide definitions of
  78    non- multi-arch macros..  */
  79
  80 #define GDB_MULTI_ARCH_TM 2
  81
  82 /* The target is pure multi-arch.  The MULTI-ARCH vector provides all
  83    definitions.  "tm.h" is linked to an empty file. */
  84
  85 #define GDB_MULTI_ARCH_PURE 3
  86
  87
  88
  89 /* An address in the program being debugged.  Host byte order.  Rather
  90    than duplicate all the logic in BFD which figures out what type
  91    this is (long, long long, etc.) and whether it needs to be 64
  92    bits (the host/target interactions are subtle), we just use
  93    bfd_vma.  */
  94
  95 typedef bfd_vma CORE_ADDR;
  96
  97 /* This is to make sure that LONGEST is at least as big as CORE_ADDR.  */
  98
  99 #ifndef LONGEST
 100
 101 #ifdef BFD64
 102
 103 #define LONGEST BFD_HOST_64_BIT
 104 #define ULONGEST BFD_HOST_U_64_BIT
 105
 106 #else /* No BFD64 */
 107
 108 #ifdef CC_HAS_LONG_LONG
 109 #define LONGEST long long
 110 #define ULONGEST unsigned long long
 111 #else
 112 #ifdef BFD_HOST_64_BIT
 113 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
 114    (e.g. i386-windows) so try it.  */
 115 #define LONGEST BFD_HOST_64_BIT
 116 #define ULONGEST BFD_HOST_U_64_BIT
 117 #else
 118 #define LONGEST long
 119 #define ULONGEST unsigned long
 120 #endif
 121 #endif
 122
 123 #endif /* No BFD64 */
 124
 125 #endif /* ! LONGEST */
 126
 127 #ifndef min
 128 #define min(a, b) ((a) < (b) ? (a) : (b))
 129 #endif
 130 #ifndef max
 131 #define max(a, b) ((a) > (b) ? (a) : (b))
 132 #endif
 133
 134 /* Macros to do string compares.
 135
 136    NOTE: cagney/2000-03-14:
 137
 138    While old code can continue to refer to these macros, new code is
 139    probably better off using strcmp() directly vis: ``strcmp() == 0''
 140    and ``strcmp() != 0''.
 141
 142    This is because modern compilers can directly inline strcmp()
 143    making the original justification for these macros - avoid function
 144    call overhead by pre-testing the first characters
 145    (``*X==*Y?...:0'') - redundant.
 146
 147    ``Even if [...] testing the first character does have a modest
 148    performance improvement, I'd rather that whenever a performance
 149    issue is found that we spend the effort on algorithmic
 150    optimizations than micro-optimizing.'' J.T. */
 151
 152 #define STREQ(a,b) (*(a) == *(b) ? !strcmp ((a), (b)) : 0)
 153 #define STREQN(a,b,c) (*(a) == *(b) ? !strncmp ((a), (b), (c)) : 0)
 154
 155 /* The character GNU C++ uses to build identifiers that must be unique from
 156    the program's identifiers (such as $this and $$vptr).  */
 157 #define CPLUS_MARKER '$'        /* May be overridden to '.' for SysV */
 158
 159 /* Check if a character is one of the commonly used C++ marker characters.  */
 160 extern int is_cplus_marker (int);
 161
 162 /* use tui interface if non-zero */
 163 extern int tui_version;
 164
 165 #if defined(TUI)
 166 /* all invocations of TUIDO should have two sets of parens */
 167 #define TUIDO(x)        tuiDo x
 168 #else
 169 #define TUIDO(x)
 170 #endif
 171
 172 /* enable xdb commands if set */
 173 extern int xdb_commands;
 174
 175 /* enable dbx commands if set */
 176 extern int dbx_commands;
 177
 178 extern int quit_flag;
 179 extern int immediate_quit;
 180 extern int sevenbit_strings;
 181
 182 extern void quit (void);
 183
 184 /* FIXME: cagney/2000-03-13: It has been suggested that the peformance
 185    benefits of having a ``QUIT'' macro rather than a function are
 186    marginal.  If the overhead of a QUIT function call is proving
 187    significant then its calling frequency should probably be reduced
 188    [kingdon].  A profile analyzing the current situtation is
 189    needed. */
 190
 191 #ifdef QUIT
 192 /* do twice to force compiler warning */
 193 #define QUIT_FIXME "FIXME"
 194 #define QUIT_FIXME "ignoring redefinition of QUIT"
 195 #else
 196 #define QUIT { \
 197   if (quit_flag) quit (); \
 198   if (interactive_hook) interactive_hook (); \
 199   PROGRESS (1); \
 200 }
 201 #endif
 202
 203 /* Languages represented in the symbol table and elsewhere.
 204    This should probably be in language.h, but since enum's can't
 205    be forward declared to satisfy opaque references before their
 206    actual definition, needs to be here. */
 207
 208 enum language
 209   {
 210     language_unknown,           /* Language not known */
 211     language_auto,              /* Placeholder for automatic setting */
 212     language_c,                 /* C */
 213     language_cplus,             /* C++ */
 214     language_java,              /* Java */
 215     language_chill,             /* Chill */
 216     language_fortran,           /* Fortran */
 217     language_m2,                /* Modula-2 */
 218     language_asm,               /* Assembly language */
 219     language_scm,               /* Scheme / Guile */
 220     language_pascal             /* Pascal */
 221   };
 222
 223 enum precision_type
 224   {
 225     single_precision,
 226     double_precision,
 227     unspecified_precision
 228   };
 229
 230 /* The numbering of these signals is chosen to match traditional unix
 231    signals (insofar as various unices use the same numbers, anyway).
 232    It is also the numbering of the GDB remote protocol.  Other remote
 233    protocols, if they use a different numbering, should make sure to
 234    translate appropriately.
 235
 236    Since these numbers have actually made it out into other software
 237    (stubs, etc.), you mustn't disturb the assigned numbering.  If you
 238    need to add new signals here, add them to the end of the explicitly
 239    numbered signals.
 240
 241    This is based strongly on Unix/POSIX signals for several reasons:
 242    (1) This set of signals represents a widely-accepted attempt to
 243    represent events of this sort in a portable fashion, (2) we want a
 244    signal to make it from wait to child_wait to the user intact, (3) many
 245    remote protocols use a similar encoding.  However, it is
 246    recognized that this set of signals has limitations (such as not
 247    distinguishing between various kinds of SIGSEGV, or not
 248    distinguishing hitting a breakpoint from finishing a single step).
 249    So in the future we may get around this either by adding additional
 250    signals for breakpoint, single-step, etc., or by adding signal
 251    codes; the latter seems more in the spirit of what BSD, System V,
 252    etc. are doing to address these issues.  */
 253
 254 /* For an explanation of what each signal means, see
 255    target_signal_to_string.  */
 256
 257 enum target_signal
 258   {
 259     /* Used some places (e.g. stop_signal) to record the concept that
 260        there is no signal.  */
 261     TARGET_SIGNAL_0 = 0,
 262     TARGET_SIGNAL_FIRST = 0,
 263     TARGET_SIGNAL_HUP = 1,
 264     TARGET_SIGNAL_INT = 2,
 265     TARGET_SIGNAL_QUIT = 3,
 266     TARGET_SIGNAL_ILL = 4,
 267     TARGET_SIGNAL_TRAP = 5,
 268     TARGET_SIGNAL_ABRT = 6,
 269     TARGET_SIGNAL_EMT = 7,
 270     TARGET_SIGNAL_FPE = 8,
 271     TARGET_SIGNAL_KILL = 9,
 272     TARGET_SIGNAL_BUS = 10,
 273     TARGET_SIGNAL_SEGV = 11,
 274     TARGET_SIGNAL_SYS = 12,
 275     TARGET_SIGNAL_PIPE = 13,
 276     TARGET_SIGNAL_ALRM = 14,
 277     TARGET_SIGNAL_TERM = 15,
 278     TARGET_SIGNAL_URG = 16,
 279     TARGET_SIGNAL_STOP = 17,
 280     TARGET_SIGNAL_TSTP = 18,
 281     TARGET_SIGNAL_CONT = 19,
 282     TARGET_SIGNAL_CHLD = 20,
 283     TARGET_SIGNAL_TTIN = 21,
 284     TARGET_SIGNAL_TTOU = 22,
 285     TARGET_SIGNAL_IO = 23,
 286     TARGET_SIGNAL_XCPU = 24,
 287     TARGET_SIGNAL_XFSZ = 25,
 288     TARGET_SIGNAL_VTALRM = 26,
 289     TARGET_SIGNAL_PROF = 27,
 290     TARGET_SIGNAL_WINCH = 28,
 291     TARGET_SIGNAL_LOST = 29,
 292     TARGET_SIGNAL_USR1 = 30,
 293     TARGET_SIGNAL_USR2 = 31,
 294     TARGET_SIGNAL_PWR = 32,
 295     /* Similar to SIGIO.  Perhaps they should have the same number.  */
 296     TARGET_SIGNAL_POLL = 33,
 297     TARGET_SIGNAL_WIND = 34,
 298     TARGET_SIGNAL_PHONE = 35,
 299     TARGET_SIGNAL_WAITING = 36,
 300     TARGET_SIGNAL_LWP = 37,
 301     TARGET_SIGNAL_DANGER = 38,
 302     TARGET_SIGNAL_GRANT = 39,
 303     TARGET_SIGNAL_RETRACT = 40,
 304     TARGET_SIGNAL_MSG = 41,
 305     TARGET_SIGNAL_SOUND = 42,
 306     TARGET_SIGNAL_SAK = 43,
 307     TARGET_SIGNAL_PRIO = 44,
 308     TARGET_SIGNAL_REALTIME_33 = 45,
 309     TARGET_SIGNAL_REALTIME_34 = 46,
 310     TARGET_SIGNAL_REALTIME_35 = 47,
 311     TARGET_SIGNAL_REALTIME_36 = 48,
 312     TARGET_SIGNAL_REALTIME_37 = 49,
 313     TARGET_SIGNAL_REALTIME_38 = 50,
 314     TARGET_SIGNAL_REALTIME_39 = 51,
 315     TARGET_SIGNAL_REALTIME_40 = 52,
 316     TARGET_SIGNAL_REALTIME_41 = 53,
 317     TARGET_SIGNAL_REALTIME_42 = 54,
 318     TARGET_SIGNAL_REALTIME_43 = 55,
 319     TARGET_SIGNAL_REALTIME_44 = 56,
 320     TARGET_SIGNAL_REALTIME_45 = 57,
 321     TARGET_SIGNAL_REALTIME_46 = 58,
 322     TARGET_SIGNAL_REALTIME_47 = 59,
 323     TARGET_SIGNAL_REALTIME_48 = 60,
 324     TARGET_SIGNAL_REALTIME_49 = 61,
 325     TARGET_SIGNAL_REALTIME_50 = 62,
 326     TARGET_SIGNAL_REALTIME_51 = 63,
 327     TARGET_SIGNAL_REALTIME_52 = 64,
 328     TARGET_SIGNAL_REALTIME_53 = 65,
 329     TARGET_SIGNAL_REALTIME_54 = 66,
 330     TARGET_SIGNAL_REALTIME_55 = 67,
 331     TARGET_SIGNAL_REALTIME_56 = 68,
 332     TARGET_SIGNAL_REALTIME_57 = 69,
 333     TARGET_SIGNAL_REALTIME_58 = 70,
 334     TARGET_SIGNAL_REALTIME_59 = 71,
 335     TARGET_SIGNAL_REALTIME_60 = 72,
 336     TARGET_SIGNAL_REALTIME_61 = 73,
 337     TARGET_SIGNAL_REALTIME_62 = 74,
 338     TARGET_SIGNAL_REALTIME_63 = 75,
 339
 340     /* Used internally by Solaris threads.  See signal(5) on Solaris.  */
 341     TARGET_SIGNAL_CANCEL = 76,
 342
 343     /* Yes, this pains me, too.  But LynxOS didn't have SIG32, and now
 344        Linux does, and we can't disturb the numbering, since it's part
 345        of the protocol.  Note that in some GDB's TARGET_SIGNAL_REALTIME_32
 346        is number 76.  */
 347     TARGET_SIGNAL_REALTIME_32,
 348     /* Yet another pain, IRIX 6 has SIG64.  */
 349     TARGET_SIGNAL_REALTIME_64,
 350
 351 #if defined(MACH) || defined(__MACH__)
 352     /* Mach exceptions */
 353     TARGET_EXC_BAD_ACCESS,
 354     TARGET_EXC_BAD_INSTRUCTION,
 355     TARGET_EXC_ARITHMETIC,
 356     TARGET_EXC_EMULATION,
 357     TARGET_EXC_SOFTWARE,
 358     TARGET_EXC_BREAKPOINT,
 359 #endif
 360     TARGET_SIGNAL_INFO,
 361
 362     /* Some signal we don't know about.  */
 363     TARGET_SIGNAL_UNKNOWN,
 364
 365     /* Use whatever signal we use when one is not specifically specified
 366        (for passing to proceed and so on).  */
 367     TARGET_SIGNAL_DEFAULT,
 368
 369     /* Last and unused enum value, for sizing arrays, etc.  */
 370     TARGET_SIGNAL_LAST
 371   };
 372
 373 /* the cleanup list records things that have to be undone
 374    if an error happens (descriptors to be closed, memory to be freed, etc.)
 375    Each link in the chain records a function to call and an
 376    argument to give it.
 377
 378    Use make_cleanup to add an element to the cleanup chain.
 379    Use do_cleanups to do all cleanup actions back to a given
 380    point in the chain.  Use discard_cleanups to remove cleanups
 381    from the chain back to a given point, not doing them.  */
 382
 383 struct cleanup
 384   {
 385     struct cleanup *next;
 386     void (*function) (PTR);
 387     PTR arg;
 388   };
 389
 390
 391 /* The ability to declare that a function never returns is useful, but
 392    not really required to compile GDB successfully, so the NORETURN and
 393    ATTR_NORETURN macros normally expand into nothing.  */
 394
 395 /* If compiling with older versions of GCC, a function may be declared
 396    "volatile" to indicate that it does not return.  */
 397
 398 #ifndef NORETURN
 399 #if defined(__GNUC__) \
 400      && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
 401 #define NORETURN volatile
 402 #else
 403 #define NORETURN                /* nothing */
 404 #endif
 405 #endif
 406
 407 /* GCC 2.5 and later versions define a function attribute "noreturn",
 408    which is the preferred way to declare that a function never returns.
 409    However GCC 2.7 appears to be the first version in which this fully
 410    works everywhere we use it. */
 411
 412 #ifndef ATTR_NORETURN
 413 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
 414 #define ATTR_NORETURN __attribute__ ((noreturn))
 415 #else
 416 #define ATTR_NORETURN           /* nothing */
 417 #endif
 418 #endif
 419
 420 #ifndef ATTR_FORMAT
 421 #if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 4))
 422 #define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
 423 #else
 424 #define ATTR_FORMAT(type, x, y) /* nothing */
 425 #endif
 426 #endif
 427
 428 /* Needed for various prototypes */
 429
 430 struct symtab;
 431 struct breakpoint;
 432
 433 /* From blockframe.c */
 434
 435 extern int inside_entry_func (CORE_ADDR);
 436
 437 extern int inside_entry_file (CORE_ADDR addr);
 438
 439 extern int inside_main_func (CORE_ADDR pc);
 440
 441 /* From ch-lang.c, for the moment. (FIXME) */
 442
 443 extern char *chill_demangle (const char *);
 444
 445 /* From utils.c */
 446
 447 extern void initialize_utils (void);
 448
 449 extern void notice_quit (void);
 450
 451 extern int strcmp_iw (const char *, const char *);
 452
 453 extern int subset_compare (char *, char *);
 454
 455 extern char *safe_strerror (int);
 456
 457 extern void init_malloc (void *);
 458
 459 extern void request_quit (int);
 460
 461 extern void do_cleanups (struct cleanup *);
 462 extern void do_final_cleanups (struct cleanup *);
 463 extern void do_my_cleanups (struct cleanup **, struct cleanup *);
 464 extern void do_run_cleanups (struct cleanup *);
 465 extern void do_exec_cleanups (struct cleanup *);
 466 extern void do_exec_error_cleanups (struct cleanup *);
 467
 468 extern void discard_cleanups (struct cleanup *);
 469 extern void discard_final_cleanups (struct cleanup *);
 470 extern void discard_exec_error_cleanups (struct cleanup *);
 471 extern void discard_my_cleanups (struct cleanup **, struct cleanup *);
 472
 473 /* NOTE: cagney/2000-03-04: This typedef is strictly for the
 474    make_cleanup function declarations below. Do not use this typedef
 475    as a cast when passing functions into the make_cleanup() code.
 476    Instead either use a bounce function or add a wrapper function.
 477    Calling a f(char*) function with f(void*) is non-portable. */
 478 typedef void (make_cleanup_ftype) (void *);
 479
 480 extern struct cleanup *make_cleanup (make_cleanup_ftype *, void *);
 481
 482 extern struct cleanup *make_cleanup_freeargv (char **);
 483
 484 struct ui_file;
 485 extern struct cleanup *make_cleanup_ui_file_delete (struct ui_file *);
 486
 487 extern struct cleanup *make_cleanup_close (int fd);
 488
 489 extern struct cleanup *make_cleanup_bfd_close (bfd *abfd);
 490
 491 extern struct cleanup *make_final_cleanup (make_cleanup_ftype *, void *);
 492
 493 extern struct cleanup *make_my_cleanup (struct cleanup **,
 494                                         make_cleanup_ftype *, void *);
 495
 496 extern struct cleanup *make_run_cleanup (make_cleanup_ftype *, void *);
 497
 498 extern struct cleanup *make_exec_cleanup (make_cleanup_ftype *, void *);
 499 extern struct cleanup *make_exec_error_cleanup (make_cleanup_ftype *, void *);
 500
 501 extern struct cleanup *save_cleanups (void);
 502 extern struct cleanup *save_final_cleanups (void);
 503 extern struct cleanup *save_my_cleanups (struct cleanup **);
 504
 505 extern void restore_cleanups (struct cleanup *);
 506 extern void restore_final_cleanups (struct cleanup *);
 507 extern void restore_my_cleanups (struct cleanup **, struct cleanup *);
 508
 509 extern void free_current_contents (void *);
 510
 511 extern void null_cleanup (void *);
 512
 513 extern int myread (int, char *, int);
 514
 515 extern int query (char *, ...) ATTR_FORMAT (printf, 1, 2);
 516
 517 extern void init_page_info (void);
 518
 519 extern CORE_ADDR host_pointer_to_address (void *ptr);
 520 extern void *address_to_host_pointer (CORE_ADDR addr);
 521
 522 /* From demangle.c */
 523
 524 extern void set_demangling_style (char *);
 525
 526 /* From tm.h */
 527
 528 struct type;
 529 typedef int (use_struct_convention_fn) (int gcc_p, struct type * value_type);
 530 extern use_struct_convention_fn generic_use_struct_convention;
 531
 532 typedef unsigned char *(breakpoint_from_pc_fn) (CORE_ADDR * pcptr, int *lenptr);
 533 \f
 534 /* Annotation stuff.  */
 535
 536 extern int annotation_level;    /* in stack.c */
 537 \f
 538 extern void begin_line (void);
 539
 540 extern void wrap_here (char *);
 541
 542 extern void reinitialize_more_filter (void);
 543
 544 /* Normal results */
 545 extern struct ui_file *gdb_stdout;
 546 /* Serious error notifications */
 547 extern struct ui_file *gdb_stderr;
 548 /* Log/debug/trace messages that should bypass normal stdout/stderr
 549    filtering.  For momement, always call this stream using
 550    *_unfiltered. In the very near future that restriction shall be
 551    removed - either call shall be unfiltered. (cagney 1999-06-13). */
 552 extern struct ui_file *gdb_stdlog;
 553 /* Target output that should bypass normal stdout/stderr filtering.
 554    For momement, always call this stream using *_unfiltered. In the
 555    very near future that restriction shall be removed - either call
 556    shall be unfiltered. (cagney 1999-07-02). */
 557 extern struct ui_file *gdb_stdtarg;
 558
 559 #if defined(TUI)
 560 #include "tui.h"
 561 #include "tuiCommand.h"
 562 #include "tuiData.h"
 563 #include "tuiIO.h"
 564 #include "tuiLayout.h"
 565 #include "tuiWin.h"
 566 #endif
 567
 568 #include "ui-file.h"
 569
 570 /* More generic printf like operations.  Filtered versions may return
 571    non-locally on error.  */
 572
 573 extern void fputs_filtered (const char *, struct ui_file *);
 574
 575 extern void fputs_unfiltered (const char *, struct ui_file *);
 576
 577 extern int fputc_filtered (int c, struct ui_file *);
 578
 579 extern int fputc_unfiltered (int c, struct ui_file *);
 580
 581 extern int putchar_filtered (int c);
 582
 583 extern int putchar_unfiltered (int c);
 584
 585 extern void puts_filtered (const char *);
 586
 587 extern void puts_unfiltered (const char *);
 588
 589 extern void puts_debug (char *prefix, char *string, char *suffix);
 590
 591 extern void vprintf_filtered (const char *, va_list) ATTR_FORMAT (printf, 1, 0);
 592
 593 extern void vfprintf_filtered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0);
 594
 595 extern void fprintf_filtered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3);
 596
 597 extern void fprintfi_filtered (int, struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 3, 4);
 598
 599 extern void printf_filtered (const char *, ...) ATTR_FORMAT (printf, 1, 2);
 600
 601 extern void printfi_filtered (int, const char *, ...) ATTR_FORMAT (printf, 2, 3);
 602
 603 extern void vprintf_unfiltered (const char *, va_list) ATTR_FORMAT (printf, 1, 0);
 604
 605 extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0);
 606
 607 extern void fprintf_unfiltered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3);
 608
 609 extern void printf_unfiltered (const char *, ...) ATTR_FORMAT (printf, 1, 2);
 610
 611 extern void print_spaces (int, struct ui_file *);
 612
 613 extern void print_spaces_filtered (int, struct ui_file *);
 614
 615 extern char *n_spaces (int);
 616
 617 extern void fputstr_filtered (const char *str, int quotr, struct ui_file * stream);
 618
 619 extern void fputstr_unfiltered (const char *str, int quotr, struct ui_file * stream);
 620
 621 extern void fputstrn_unfiltered (const char *str, int n, int quotr, struct ui_file * stream);
 622
 623 /* Display the host ADDR on STREAM formatted as ``0x%x''. */
 624 extern void gdb_print_host_address (void *addr, struct ui_file *stream);
 625
 626 /* Convert a CORE_ADDR into a HEX string.  paddr() is like %08lx.
 627    paddr_nz() is like %lx.  paddr_u() is like %lu. paddr_width() is
 628    for ``%*''. */
 629 extern int strlen_paddr (void);
 630 extern char *paddr (CORE_ADDR addr);
 631 extern char *paddr_nz (CORE_ADDR addr);
 632 extern char *paddr_u (CORE_ADDR addr);
 633 extern char *paddr_d (LONGEST addr);
 634
 635 extern char *phex (ULONGEST l, int sizeof_l);
 636 extern char *phex_nz (ULONGEST l, int sizeof_l);
 637
 638 extern void fprintf_symbol_filtered (struct ui_file *, char *,
 639                                      enum language, int);
 640
 641 extern NORETURN void perror_with_name (char *) ATTR_NORETURN;
 642
 643 extern void print_sys_errmsg (char *, int);
 644
 645 /* From regex.c or libc.  BSD 4.4 declares this with the argument type as
 646    "const char *" in unistd.h, so we can't declare the argument
 647    as "char *".  */
 648
 649 extern char *re_comp (const char *);
 650
 651 /* From symfile.c */
 652
 653 extern void symbol_file_command (char *, int);
 654
 655 /* Remote targets may wish to use this as their load function.  */
 656 extern void generic_load (char *name, int from_tty);
 657
 658 /* Summarise a download */
 659 extern void print_transfer_performance (struct ui_file *stream,
 660                                         unsigned long data_count,
 661                                         unsigned long write_count,
 662                                         unsigned long time_count);
 663
 664 /* From top.c */
 665
 666 typedef void initialize_file_ftype (void);
 667
 668 extern char *skip_quoted (char *);
 669
 670 extern char *gdb_readline (char *);
 671
 672 extern char *command_line_input (char *, int, char *);
 673
 674 extern void print_prompt (void);
 675
 676 extern int input_from_terminal_p (void);
 677
 678 extern int info_verbose;
 679
 680 /* From printcmd.c */
 681
 682 extern void set_next_address (CORE_ADDR);
 683
 684 extern void print_address_symbolic (CORE_ADDR, struct ui_file *, int,
 685                                     char *);
 686
 687 extern int build_address_symbolic (CORE_ADDR addr,
 688                                    int do_demangle,
 689                                    char **name,
 690                                    int *offset,
 691                                    char **filename,
 692                                    int *line,
 693                                    int *unmapped);
 694
 695 extern void print_address_numeric (CORE_ADDR, int, struct ui_file *);
 696
 697 extern void print_address (CORE_ADDR, struct ui_file *);
 698
 699 /* From source.c */
 700
 701 extern int openp (char *, int, char *, int, int, char **);
 702
 703 extern int source_full_path_of (char *, char **);
 704
 705 extern void mod_path (char *, char **);
 706
 707 extern void directory_command (char *, int);
 708
 709 extern void init_source_path (void);
 710
 711 extern char *symtab_to_filename (struct symtab *);
 712
 713 /* From exec.c */
 714
 715 extern void exec_set_section_offsets (bfd_signed_vma text_off,
 716                                       bfd_signed_vma data_off,
 717                                       bfd_signed_vma bss_off);
 718
 719 /* From findvar.c */
 720
 721 extern int read_relative_register_raw_bytes (int, char *);
 722
 723 /* Possible lvalue types.  Like enum language, this should be in
 724    value.h, but needs to be here for the same reason. */
 725
 726 enum lval_type
 727   {
 728     /* Not an lval. */
 729     not_lval,
 730     /* In memory.  Could be a saved register.  */
 731     lval_memory,
 732     /* In a register.  */
 733     lval_register,
 734     /* In a gdb internal variable.  */
 735     lval_internalvar,
 736     /* Part of a gdb internal variable (structure field).  */
 737     lval_internalvar_component,
 738     /* In a register series in a frame not the current one, which may have been
 739        partially saved or saved in different places (otherwise would be
 740        lval_register or lval_memory).  */
 741     lval_reg_frame_relative
 742   };
 743
 744 struct frame_info;
 745
 746 /* From readline (but not in any readline .h files).  */
 747
 748 extern char *tilde_expand (char *);
 749
 750 /* Control types for commands */
 751
 752 enum misc_command_type
 753   {
 754     ok_command,
 755     end_command,
 756     else_command,
 757     nop_command
 758   };
 759
 760 enum command_control_type
 761   {
 762     simple_control,
 763     break_control,
 764     continue_control,
 765     while_control,
 766     if_control,
 767     invalid_control
 768   };
 769
 770 /* Structure for saved commands lines
 771    (for breakpoints, defined commands, etc).  */
 772
 773 struct command_line
 774   {
 775     struct command_line *next;
 776     char *line;
 777     enum command_control_type control_type;
 778     int body_count;
 779     struct command_line **body_list;
 780   };
 781
 782 extern struct command_line *read_command_lines (char *, int);
 783
 784 extern void free_command_lines (struct command_line **);
 785
 786 /* To continue the execution commands when running gdb asynchronously.
 787    A continuation structure contains a pointer to a function to be called
 788    to finish the command, once the target has stopped. Such mechanism is
 789    used bt the finish and until commands, and in the remote protocol
 790    when opening an extended-remote connection. */
 791
 792 struct continuation_arg
 793   {
 794     struct continuation_arg *next;
 795     union continuation_data {
 796       void *pointer;
 797       int   integer;
 798       long  longint;
 799     } data;
 800   };
 801
 802 struct continuation
 803   {
 804     void (*continuation_hook) (struct continuation_arg *);
 805     struct continuation_arg *arg_list;
 806     struct continuation *next;
 807   };
 808
 809 /* In infrun.c. */
 810 extern struct continuation *cmd_continuation;
 811 /* Used only by the step_1 function. */
 812 extern struct continuation *intermediate_continuation;
 813
 814 /* From utils.c */
 815 extern void add_continuation (void (*)(struct continuation_arg *),
 816                               struct continuation_arg *);
 817 extern void do_all_continuations (void);
 818 extern void discard_all_continuations (void);
 819
 820 extern void add_intermediate_continuation (void (*)(struct continuation_arg *),
 821                               struct continuation_arg *);
 822 extern void do_all_intermediate_continuations (void);
 823 extern void discard_all_intermediate_continuations (void);
 824
 825 /* String containing the current directory (what getwd would return).  */
 826
 827 extern char *current_directory;
 828
 829 /* Default radixes for input and output.  Only some values supported.  */
 830 extern unsigned input_radix;
 831 extern unsigned output_radix;
 832
 833 /* Possibilities for prettyprint parameters to routines which print
 834    things.  Like enum language, this should be in value.h, but needs
 835    to be here for the same reason.  FIXME:  If we can eliminate this
 836    as an arg to LA_VAL_PRINT, then we can probably move it back to
 837    value.h. */
 838
 839 enum val_prettyprint
 840   {
 841     Val_no_prettyprint = 0,
 842     Val_prettyprint,
 843     /* Use the default setting which the user has specified.  */
 844     Val_pretty_default
 845   };
 846 \f
 847
 848 /* Optional host machine definition.  Pure autoconf targets will not
 849    need a "xm.h" file.  This will be a symlink to one of the xm-*.h
 850    files, built by the `configure' script.  */
 851
 852 #ifdef GDB_XM_FILE
 853 #include "xm.h"
 854 #endif
 855
 856 /* Optional native machine support.  Non-native (and possibly pure
 857    multi-arch) targets do not need a "nm.h" file.  This will be a
 858    symlink to one of the nm-*.h files, built by the `configure'
 859    script.  */
 860
 861 #ifdef GDB_NM_FILE
 862 #include "nm.h"
 863 #endif
 864
 865 /* Optional target machine definition.  Pure multi-arch configurations
 866    do not need a "tm.h" file.  This will be a symlink to one of the
 867    tm-*.h files, built by the `configure' script.  */
 868
 869 #ifdef GDB_TM_FILE
 870 #include "tm.h"
 871 #endif
 872
 873 /* GDB_MULTI_ARCH is normally set by configure.in using information
 874    from configure.tgt or the config/%/%.mt Makefile fragment.  Since
 875    some targets have defined it in their "tm.h" file, delay providing
 876    a default definition until after "tm.h" has been included.. */
 877
 878 #ifndef GDB_MULTI_ARCH
 879 #define GDB_MULTI_ARCH 0
 880 #endif
 881
 882
 883 /* If the xm.h file did not define the mode string used to open the
 884    files, assume that binary files are opened the same way as text
 885    files */
 886 #ifndef FOPEN_RB
 887 #include "fopen-same.h"
 888 #endif
 889
 890 /* Microsoft C can't deal with const pointers */
 891
 892 #ifdef _MSC_VER
 893 #define CONST_PTR
 894 #else
 895 #define CONST_PTR const
 896 #endif
 897
 898 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
 899    FIXME: Assumes 2's complement arithmetic */
 900
 901 #if !defined (UINT_MAX)
 902 #define UINT_MAX ((unsigned int)(~0))   /* 0xFFFFFFFF for 32-bits */
 903 #endif
 904
 905 #if !defined (INT_MAX)
 906 #define INT_MAX ((int)(UINT_MAX >> 1))  /* 0x7FFFFFFF for 32-bits */
 907 #endif
 908
 909 #if !defined (INT_MIN)
 910 #define INT_MIN ((int)((int) ~0 ^ INT_MAX))     /* 0x80000000 for 32-bits */
 911 #endif
 912
 913 #if !defined (ULONG_MAX)
 914 #define ULONG_MAX ((unsigned long)(~0L))        /* 0xFFFFFFFF for 32-bits */
 915 #endif
 916
 917 #if !defined (LONG_MAX)
 918 #define LONG_MAX ((long)(ULONG_MAX >> 1))       /* 0x7FFFFFFF for 32-bits */
 919 #endif
 920
 921 #if !defined (ULONGEST_MAX)
 922 #define ULONGEST_MAX (~(ULONGEST)0)        /* 0xFFFFFFFFFFFFFFFF for 64-bits */
 923 #endif
 924
 925 #if !defined (LONGEST_MAX)                 /* 0x7FFFFFFFFFFFFFFF for 64-bits */
 926 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
 927 #endif
 928
 929 /* Convert a LONGEST to an int.  This is used in contexts (e.g. number of
 930    arguments to a function, number in a value history, register number, etc.)
 931    where the value must not be larger than can fit in an int.  */
 932
 933 extern int longest_to_int (LONGEST);
 934
 935 /* Assorted functions we can declare, now that const and volatile are
 936    defined.  */
 937
 938 extern char *savestring (const char *, size_t);
 939
 940 extern char *msavestring (void *, const char *, size_t);
 941
 942 extern char *mstrsave (void *, const char *);
 943
 944 #if !defined (USE_MMALLOC)
 945 /* NOTE: cagney/2000-03-04: The mmalloc functions need to use PTR
 946    rather than void* so that they are consistent with the delcaration
 947    in ../mmalloc/mmalloc.h. */
 948 extern PTR mcalloc (PTR, size_t, size_t);
 949 extern PTR mmalloc (PTR, size_t);
 950 extern PTR mrealloc (PTR, PTR, size_t);
 951 extern void mfree (PTR, PTR);
 952 #endif
 953
 954 /* Robust versions of same.  Throw an internal error when no memory,
 955    guard against stray NULL arguments. */
 956 extern void *xmmalloc (void *md, size_t size);
 957 extern void *xmrealloc (void *md, void *ptr, size_t size);
 958 extern void *xmcalloc (void *md, size_t number, size_t size);
 959 extern void xmfree (void *md, void *ptr);
 960
 961 /* xmalloc(), xrealloc() and xcalloc() have already been declared in
 962    "libiberty.h". */
 963 extern void xfree (void *);
 964
 965 /* Like asprintf/vasprintf but get an internal_error if the call
 966    fails. */
 967 extern void xasprintf (char **ret, const char *format, ...) ATTR_FORMAT (printf, 2, 3);
 968 extern void xvasprintf (char **ret, const char *format, va_list ap);
 969
 970 extern int parse_escape (char **);
 971
 972 /* Message to be printed before the error message, when an error occurs.  */
 973
 974 extern char *error_pre_print;
 975
 976 /* Message to be printed before the error message, when an error occurs.  */
 977
 978 extern char *quit_pre_print;
 979
 980 /* Message to be printed before the warning message, when a warning occurs.  */
 981
 982 extern char *warning_pre_print;
 983
 984 extern NORETURN void verror (const char *fmt, va_list ap) ATTR_NORETURN;
 985
 986 extern NORETURN void error (const char *fmt, ...) ATTR_NORETURN;
 987
 988 /* DEPRECATED: Use error(), verror() or error_stream(). */
 989 extern NORETURN void error_begin (void);
 990
 991 extern NORETURN void error_stream (struct ui_file *) ATTR_NORETURN;
 992
 993 /* Returns a freshly allocate buffer containing the last error
 994    message.  */
 995 extern char *error_last_message (void);
 996
 997 extern NORETURN void internal_verror (const char *file, int line,
 998                                       const char *, va_list ap) ATTR_NORETURN;
 999
1000 extern NORETURN void internal_error (const char *file, int line,
1001                                      const char *, ...) ATTR_NORETURN ATTR_FORMAT (printf, 3, 4);
1002
1003 extern NORETURN void nomem (long) ATTR_NORETURN;
1004
1005 /* Reasons for calling return_to_top_level.  Note: enum value 0 is
1006    reserved for internal use as the return value from an initial
1007    setjmp().  */
1008
1009 enum return_reason
1010   {
1011     /* User interrupt.  */
1012     RETURN_QUIT = 1,
1013     /* Any other error.  */
1014     RETURN_ERROR
1015   };
1016
1017 #define ALL_CLEANUPS    ((struct cleanup *)0)
1018
1019 #define RETURN_MASK(reason)     (1 << (int)(reason))
1020 #define RETURN_MASK_QUIT        RETURN_MASK (RETURN_QUIT)
1021 #define RETURN_MASK_ERROR       RETURN_MASK (RETURN_ERROR)
1022 #define RETURN_MASK_ALL         (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
1023 typedef int return_mask;
1024
1025 extern NORETURN void return_to_top_level (enum return_reason) ATTR_NORETURN;
1026
1027 /* If CATCH_ERRORS_FTYPE throws an error, catch_errors() returns zero
1028    otherwize the result from CATCH_ERRORS_FTYPE is returned. It is
1029    probably useful for CATCH_ERRORS_FTYPE to always return a non-zero
1030    value. It's unfortunate that, catch_errors() does not return an
1031    indication of the exact exception that it caught - quit_flag might
1032    help. */
1033
1034 typedef int (catch_errors_ftype) (PTR);
1035 extern int catch_errors (catch_errors_ftype *, PTR, char *, return_mask);
1036
1037 /* Template to catch_errors() that wraps calls to command
1038    functions. */
1039
1040 typedef void (catch_command_errors_ftype) (char *, int);
1041 extern int catch_command_errors (catch_command_errors_ftype *func, char *command, int from_tty, return_mask);
1042
1043 extern void warning_begin (void);
1044
1045 extern void warning (const char *, ...) ATTR_FORMAT (printf, 1, 2);
1046
1047 /* Global functions from other, non-gdb GNU thingies.
1048    Libiberty thingies are no longer declared here.  We include libiberty.h
1049    above, instead.  */
1050
1051 #ifndef GETENV_PROVIDED
1052 extern char *getenv (const char *);
1053 #endif
1054
1055 /* From other system libraries */
1056
1057 #ifdef HAVE_STDDEF_H
1058 #include <stddef.h>
1059 #endif
1060
1061 #ifdef HAVE_STDLIB_H
1062 #if defined(_MSC_VER) && !defined(__cplusplus)
1063 /* msvc defines these in stdlib.h for c code */
1064 #undef min
1065 #undef max
1066 #endif
1067 #include <stdlib.h>
1068 #endif
1069 #ifndef min
1070 #define min(a, b) ((a) < (b) ? (a) : (b))
1071 #endif
1072 #ifndef max
1073 #define max(a, b) ((a) > (b) ? (a) : (b))
1074 #endif
1075
1076
1077 /* We take the address of fclose later, but some stdio's forget
1078    to declare this.  We can't always declare it since there's
1079    no way to declare the parameters without upsetting some compiler
1080    somewhere. */
1081
1082 #ifndef FCLOSE_PROVIDED
1083 extern int fclose (FILE *);
1084 #endif
1085
1086 #ifndef atof
1087 extern double atof (const char *);      /* X3.159-1989  4.10.1.1 */
1088 #endif
1089
1090 /* Various possibilities for alloca.  */
1091 #ifndef alloca
1092 #ifdef __GNUC__
1093 #define alloca __builtin_alloca
1094 #else /* Not GNU C */
1095 #ifdef HAVE_ALLOCA_H
1096 #include <alloca.h>
1097 #else
1098 #ifdef _AIX
1099 #pragma alloca
1100 #else
1101
1102 /* We need to be careful not to declare this in a way which conflicts with
1103    bison.  Bison never declares it as char *, but under various circumstances
1104    (like __hpux) we need to use void *.  */
1105 extern void *alloca ();
1106 #endif /* Not _AIX */
1107 #endif /* Not HAVE_ALLOCA_H */
1108 #endif /* Not GNU C */
1109 #endif /* alloca not defined */
1110
1111 /* HOST_BYTE_ORDER must be defined to one of these.  */
1112
1113 #ifdef HAVE_ENDIAN_H
1114 #include <endian.h>
1115 #endif
1116
1117 #if !defined (BIG_ENDIAN)
1118 #define BIG_ENDIAN 4321
1119 #endif
1120
1121 #if !defined (LITTLE_ENDIAN)
1122 #define LITTLE_ENDIAN 1234
1123 #endif
1124
1125 /* Dynamic target-system-dependent parameters for GDB. */
1126 #include "gdbarch.h"
1127 #if (GDB_MULTI_ARCH == 0)
1128 /* Multi-arch targets _should_ be including "arch-utils.h" directly
1129    into their *-tdep.c file.  This is a prop to help old non-
1130    multi-arch targets to continue to compile. */
1131 #include "arch-utils.h"
1132 #endif
1133
1134 /* Static target-system-dependent parameters for GDB. */
1135
1136 /* Number of bits in a char or unsigned char for the target machine.
1137    Just like CHAR_BIT in <limits.h> but describes the target machine.  */
1138 #if !defined (TARGET_CHAR_BIT)
1139 #define TARGET_CHAR_BIT 8
1140 #endif
1141
1142 /* If we picked up a copy of CHAR_BIT from a configuration file
1143    (which may get it by including <limits.h>) then use it to set
1144    the number of bits in a host char.  If not, use the same size
1145    as the target. */
1146
1147 #if defined (CHAR_BIT)
1148 #define HOST_CHAR_BIT CHAR_BIT
1149 #else
1150 #define HOST_CHAR_BIT TARGET_CHAR_BIT
1151 #endif
1152
1153 /* The bit byte-order has to do just with numbering of bits in
1154    debugging symbols and such.  Conceptually, it's quite separate
1155    from byte/word byte order.  */
1156
1157 #if !defined (BITS_BIG_ENDIAN)
1158 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BIG_ENDIAN)
1159 #endif
1160
1161 /* In findvar.c.  */
1162
1163 extern LONGEST extract_signed_integer (void *, int);
1164
1165 extern ULONGEST extract_unsigned_integer (void *, int);
1166
1167 extern int extract_long_unsigned_integer (void *, int, LONGEST *);
1168
1169 extern CORE_ADDR extract_address (void *, int);
1170
1171 extern CORE_ADDR extract_typed_address (void *buf, struct type *type);
1172
1173 extern void store_signed_integer (void *, int, LONGEST);
1174
1175 extern void store_unsigned_integer (void *, int, ULONGEST);
1176
1177 extern void store_address (void *, int, LONGEST);
1178
1179 extern void store_typed_address (void *buf, struct type *type, CORE_ADDR addr);
1180
1181 /* Setup definitions for host and target floating point formats.  We need to
1182    consider the format for `float', `double', and `long double' for both target
1183    and host.  We need to do this so that we know what kind of conversions need
1184    to be done when converting target numbers to and from the hosts DOUBLEST
1185    data type.  */
1186
1187 /* This is used to indicate that we don't know the format of the floating point
1188    number.  Typically, this is useful for native ports, where the actual format
1189    is irrelevant, since no conversions will be taking place.  */
1190
1191 extern const struct floatformat floatformat_unknown;
1192
1193 #if HOST_BYTE_ORDER == BIG_ENDIAN
1194 #ifndef HOST_FLOAT_FORMAT
1195 #define HOST_FLOAT_FORMAT &floatformat_ieee_single_big
1196 #endif
1197 #ifndef HOST_DOUBLE_FORMAT
1198 #define HOST_DOUBLE_FORMAT &floatformat_ieee_double_big
1199 #endif
1200 #else /* LITTLE_ENDIAN */
1201 #ifndef HOST_FLOAT_FORMAT
1202 #define HOST_FLOAT_FORMAT &floatformat_ieee_single_little
1203 #endif
1204 #ifndef HOST_DOUBLE_FORMAT
1205 #define HOST_DOUBLE_FORMAT &floatformat_ieee_double_little
1206 #endif
1207 #endif
1208
1209 #ifndef HOST_LONG_DOUBLE_FORMAT
1210 #define HOST_LONG_DOUBLE_FORMAT &floatformat_unknown
1211 #endif
1212
1213 /* Use `long double' if the host compiler supports it.  (Note that this is not
1214    necessarily any longer than `double'.  On SunOS/gcc, it's the same as
1215    double.)  This is necessary because GDB internally converts all floating
1216    point values to the widest type supported by the host.
1217
1218    There are problems however, when the target `long double' is longer than the
1219    host's `long double'.  In general, we'll probably reduce the precision of
1220    any such values and print a warning.  */
1221
1222 #ifdef HAVE_LONG_DOUBLE
1223 typedef long double DOUBLEST;
1224 #else
1225 typedef double DOUBLEST;
1226 #endif
1227
1228 extern void floatformat_to_doublest (const struct floatformat *,
1229                                      char *, DOUBLEST *);
1230 extern void floatformat_from_doublest (const struct floatformat *,
1231                                        DOUBLEST *, char *);
1232
1233 extern int floatformat_is_negative (const struct floatformat *, char *);
1234 extern int floatformat_is_nan (const struct floatformat *, char *);
1235 extern char *floatformat_mantissa (const struct floatformat *, char *);
1236
1237 extern DOUBLEST extract_floating (void *, int);
1238 extern void store_floating (void *, int, DOUBLEST);
1239 \f
1240 /* On some machines there are bits in addresses which are not really
1241    part of the address, but are used by the kernel, the hardware, etc.
1242    for special purposes.  ADDR_BITS_REMOVE takes out any such bits
1243    so we get a "real" address such as one would find in a symbol
1244    table.  This is used only for addresses of instructions, and even then
1245    I'm not sure it's used in all contexts.  It exists to deal with there
1246    being a few stray bits in the PC which would mislead us, not as some sort
1247    of generic thing to handle alignment or segmentation (it's possible it
1248    should be in TARGET_READ_PC instead). */
1249 #if !defined (ADDR_BITS_REMOVE)
1250 #define ADDR_BITS_REMOVE(addr) (addr)
1251 #endif /* No ADDR_BITS_REMOVE.  */
1252
1253 /* From valops.c */
1254
1255 extern CORE_ADDR push_bytes (CORE_ADDR, char *, int);
1256
1257 extern CORE_ADDR push_word (CORE_ADDR, ULONGEST);
1258
1259 extern int watchdog;
1260
1261 /* Hooks for alternate command interfaces.  */
1262
1263 #ifdef UI_OUT
1264 /* The name of the interpreter if specified on the command line. */
1265 extern char *interpreter_p;
1266 #endif
1267
1268 /* If a given interpreter matches INTERPRETER_P then it should update
1269    command_loop_hook and init_ui_hook with the per-interpreter
1270    implementation. */
1271 /* FIXME: command_loop_hook and init_ui_hook should be moved here. */
1272
1273 struct target_waitstatus;
1274 struct cmd_list_element;
1275
1276 /* Should the asynchronous variant of the interpreter (using the
1277    event-loop) be enabled? */
1278 extern int event_loop_p;
1279
1280 extern void (*init_ui_hook) (char *argv0);
1281 extern void (*command_loop_hook) (void);
1282 extern void (*show_load_progress) (const char *section,
1283                                    unsigned long section_sent,
1284                                    unsigned long section_size,
1285                                    unsigned long total_sent,
1286                                    unsigned long total_size);
1287 extern void (*print_frame_info_listing_hook) (struct symtab * s,
1288                                               int line, int stopline,
1289                                               int noerror);
1290 extern struct frame_info *parse_frame_specification (char *frame_exp);
1291 extern int (*query_hook) (const char *, va_list);
1292 extern void (*warning_hook) (const char *, va_list);
1293 extern void (*flush_hook) (struct ui_file * stream);
1294 extern void (*create_breakpoint_hook) (struct breakpoint * b);
1295 extern void (*delete_breakpoint_hook) (struct breakpoint * bpt);
1296 extern void (*modify_breakpoint_hook) (struct breakpoint * bpt);
1297 extern void (*interactive_hook) (void);
1298 extern void (*registers_changed_hook) (void);
1299 extern void (*readline_begin_hook) (char *,...);
1300 extern char *(*readline_hook) (char *);
1301 extern void (*readline_end_hook) (void);
1302 extern void (*register_changed_hook) (int regno);
1303 extern void (*memory_changed_hook) (CORE_ADDR addr, int len);
1304 extern void (*context_hook) (int);
1305 extern int (*target_wait_hook) (int pid, struct target_waitstatus * status);
1306
1307 extern void (*attach_hook) (void);
1308 extern void (*detach_hook) (void);
1309 extern void (*call_command_hook) (struct cmd_list_element * c,
1310                                   char *cmd, int from_tty);
1311
1312 extern void (*set_hook) (struct cmd_list_element * c);
1313
1314 extern NORETURN void (*error_hook) (void) ATTR_NORETURN;
1315
1316 extern void (*error_begin_hook) (void);
1317
1318 extern int (*ui_load_progress_hook) (const char *section, unsigned long num);
1319
1320
1321 /* Inhibit window interface if non-zero. */
1322
1323 extern int use_windows;
1324
1325 /* Symbolic definitions of filename-related things.  */
1326 /* FIXME, this doesn't work very well if host and executable
1327    filesystems conventions are different.  */
1328
1329 #ifndef DIRNAME_SEPARATOR
1330 #define DIRNAME_SEPARATOR ':'
1331 #endif
1332
1333 #ifndef SLASH_P
1334 #if defined(__GO32__)||defined(_WIN32)
1335 #define SLASH_P(X) ((X)=='\\')
1336 #else
1337 #define SLASH_P(X) ((X)=='/')
1338 #endif
1339 #endif
1340
1341 #ifndef SLASH_CHAR
1342 #if defined(__GO32__)||defined(_WIN32)
1343 #define SLASH_CHAR '\\'
1344 #else
1345 #define SLASH_CHAR '/'
1346 #endif
1347 #endif
1348
1349 #ifndef SLASH_STRING
1350 #if defined(__GO32__)||defined(_WIN32)
1351 #define SLASH_STRING "\\"
1352 #else
1353 #define SLASH_STRING "/"
1354 #endif
1355 #endif
1356
1357 #ifndef ROOTED_P
1358 #define ROOTED_P(X) (SLASH_P((X)[0]))
1359 #endif
1360
1361 /* On some systems, PIDGET is defined to extract the inferior pid from
1362    an internal pid that has the thread id and pid in seperate bit
1363    fields.  If not defined, then just use the entire internal pid as
1364    the actual pid. */
1365
1366 #ifndef PIDGET
1367 #define PIDGET(PID) (PID)
1368 #define TIDGET(PID) 0
1369 #define MERGEPID(PID, TID) (PID)
1370 #endif
1371
1372 /* Define well known filenos if the system does not define them.  */
1373 #ifndef STDIN_FILENO
1374 #define STDIN_FILENO   0
1375 #endif
1376 #ifndef STDOUT_FILENO
1377 #define STDOUT_FILENO  1
1378 #endif
1379 #ifndef STDERR_FILENO
1380 #define STDERR_FILENO  2
1381 #endif
1382
1383 /* If this definition isn't overridden by the header files, assume
1384    that isatty and fileno exist on this system.  */
1385 #ifndef ISATTY
1386 #define ISATTY(FP)      (isatty (fileno (FP)))
1387 #endif
1388
1389 \f
1390 /* FIXME: cagney/1999-12-13: The following will be moved to gdb.h /
1391    libgdb.h or gdblib.h. */
1392
1393 /* Return-code (RC) from a gdb library call.  (The abreviation RC is
1394    taken from the sim/common directory.) */
1395
1396 enum gdb_rc {
1397   /* The operation failed.  The failure message can be fetched by
1398      calling ``char *error_last_message(void)''. The value is
1399      determined by the catch_errors() interface. */
1400   /* NOTE: Since ``defs.h:catch_errors()'' does not return an error /
1401      internal / quit indication it is not possible to return that
1402      here. */
1403   GDB_RC_FAIL = 0,
1404   /* No error occured but nothing happened. Due to the catch_errors()
1405      interface, this must be non-zero. */
1406   GDB_RC_NONE = 1,
1407   /* The operation was successful. Due to the catch_errors()
1408      interface, this must be non-zero. */
1409   GDB_RC_OK = 2
1410 };
1411
1412
1413 /* Print the specified breakpoint on GDB_STDOUT. (Eventually this
1414    function will ``print'' the object on ``output''). */
1415 enum gdb_rc gdb_breakpoint_query (/* struct {ui,gdb}_out *output, */ int bnum);
1416
1417 /* Create a breakpoint at ADDRESS (a GDB source and line). */
1418 enum gdb_rc gdb_breakpoint (char *address, char *condition,
1419                             int hardwareflag, int tempflag,
1420                             int thread, int ignore_count);
1421 enum gdb_rc gdb_thread_select (/* output object */ char *tidstr);
1422
1423 #ifdef UI_OUT
1424 /* Print a list of known thread ids. */
1425 enum gdb_rc gdb_list_thread_ids (/* output object */);
1426
1427 /* Switch thread and print notification. */
1428 #endif
1429 #endif /* #ifndef DEFS_H */