gdb/defs.h

   1 /* *INDENT-OFF* */ /* ATTRIBUTE_PRINTF confuses indent, avoid running it
   2                       for now.  */
   3 /* Basic, host-specific, and target-specific definitions for GDB.
   4    Copyright (C) 1986-2014 Free Software Foundation, Inc.
   5
   6    This file is part of GDB.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  20
  21 #ifndef DEFS_H
  22 #define DEFS_H
  23
  24 #ifdef GDBSERVER
  25 #  error gdbserver should not include gdb/defs.h
  26 #endif
  27
  28 #include "common-defs.h"
  29
  30 #include <sys/types.h>
  31 #include <errno.h>              /* System call error return status.  */
  32 #include <limits.h>
  33 #include <stdint.h>
  34
  35 /* The libdecnumber library, on which GDB depends, includes a header file
  36    called gstdint.h instead of relying directly on stdint.h.  GDB, on the
  37    other hand, includes stdint.h directly, relying on the fact that gnulib
  38    generates a copy if the system doesn't provide one or if it is missing
  39    some features.  Unfortunately, gstdint.h and stdint.h cannot be included
  40    at the same time, which may happen when we include a file from
  41    libdecnumber.
  42
  43    The following macro definition effectively prevents the inclusion of
  44    gstdint.h, as all the definitions it provides are guarded against
  45    the GCC_GENERATED_STDINT_H macro.  We already have gnulib/stdint.h
  46    included, so it's ok to blank out gstdint.h.  */
  47 #define GCC_GENERATED_STDINT_H 1
  48
  49 #include <unistd.h>
  50
  51 /* For gnulib's PATH_MAX.  */
  52 #include "pathmax.h"
  53
  54 #include <fcntl.h>
  55
  56 #include "gdb_locale.h"
  57
  58 #include "gdb_wchar.h"
  59
  60 /* For ``enum gdb_signal''.  */
  61 #include "gdb/signals.h"
  62
  63 #include "ui-file.h"
  64
  65 #include "host-defs.h"
  66
  67 /* Just in case they're not defined in stdio.h.  */
  68
  69 #ifndef SEEK_SET
  70 #define SEEK_SET 0
  71 #endif
  72 #ifndef SEEK_CUR
  73 #define SEEK_CUR 1
  74 #endif
  75
  76 /* The O_BINARY flag is defined in fcntl.h on some non-Posix platforms.
  77    It is used as an access modifier in calls to open(), where it acts
  78    similarly to the "b" character in fopen()'s MODE argument.  On Posix
  79    platforms it should be a no-op, so it is defined as 0 here.  This
  80    ensures that the symbol may be used freely elsewhere in gdb.  */
  81
  82 #ifndef O_BINARY
  83 #define O_BINARY 0
  84 #endif
  85
  86 #include "hashtab.h"
  87
  88 /* Rather than duplicate all the logic in BFD for figuring out what
  89    types to use (which can be pretty complicated), symply define them
  90    in terms of the corresponding type from BFD.  */
  91
  92 #include "bfd.h"
  93
  94 /* * A byte from the program being debugged.  */
  95 typedef bfd_byte gdb_byte;
  96
  97 /* * An address in the program being debugged.  Host byte order.  */
  98 typedef bfd_vma CORE_ADDR;
  99
 100 /* * The largest CORE_ADDR value.  */
 101 #define CORE_ADDR_MAX (~ (CORE_ADDR) 0)
 102
 103 /* This is to make sure that LONGEST is at least as big as CORE_ADDR.  */
 104
 105 #ifdef BFD64
 106
 107 #define LONGEST BFD_HOST_64_BIT
 108 #define ULONGEST BFD_HOST_U_64_BIT
 109
 110 #else /* No BFD64 */
 111
 112 #define LONGEST long long
 113 #define ULONGEST unsigned long long
 114
 115 #endif /* No BFD64 */
 116
 117 #ifndef min
 118 #define min(a, b) ((a) < (b) ? (a) : (b))
 119 #endif
 120 #ifndef max
 121 #define max(a, b) ((a) > (b) ? (a) : (b))
 122 #endif
 123
 124 #include "ptid.h"
 125
 126 /* * Enable xdb commands if set.  */
 127 extern int xdb_commands;
 128
 129 /* * Enable dbx commands if set.  */
 130 extern int dbx_commands;
 131
 132 /* * System root path, used to find libraries etc.  */
 133 extern char *gdb_sysroot;
 134
 135 /* * GDB datadir, used to store data files.  */
 136 extern char *gdb_datadir;
 137
 138 /* * If non-NULL, the possibly relocated path to python's "lib" directory
 139    specified with --with-python.  */
 140 extern char *python_libdir;
 141
 142 /* * Search path for separate debug files.  */
 143 extern char *debug_file_directory;
 144
 145 /* GDB has two methods for handling SIGINT.  When immediate_quit is
 146    nonzero, a SIGINT results in an immediate longjmp out of the signal
 147    handler.  Otherwise, SIGINT simply sets a flag; code that might
 148    take a long time, and which ought to be interruptible, checks this
 149    flag using the QUIT macro.
 150
 151    These functions use the extension_language_ops API to allow extension
 152    language(s) and GDB SIGINT handling to coexist seamlessly.  */
 153
 154 /* * Clear the quit flag.  */
 155 extern void clear_quit_flag (void);
 156 /* * Evaluate to non-zero if the quit flag is set, zero otherwise.  This
 157    will clear the quit flag as a side effect.  */
 158 extern int check_quit_flag (void);
 159 /* * Set the quit flag.  */
 160 extern void set_quit_flag (void);
 161
 162 /* Flag that function quit should call quit_force.  */
 163 extern volatile int sync_quit_force_run;
 164
 165 extern int immediate_quit;
 166
 167 extern void quit (void);
 168
 169 /* FIXME: cagney/2000-03-13: It has been suggested that the peformance
 170    benefits of having a ``QUIT'' macro rather than a function are
 171    marginal.  If the overhead of a QUIT function call is proving
 172    significant then its calling frequency should probably be reduced
 173    [kingdon].  A profile analyzing the current situtation is
 174    needed.  */
 175
 176 #define QUIT { \
 177   if (check_quit_flag () || sync_quit_force_run) quit (); \
 178   if (deprecated_interactive_hook) deprecated_interactive_hook (); \
 179 }
 180
 181 /* * Languages represented in the symbol table and elsewhere.
 182    This should probably be in language.h, but since enum's can't
 183    be forward declared to satisfy opaque references before their
 184    actual definition, needs to be here.  */
 185
 186 enum language
 187   {
 188     language_unknown,           /* Language not known */
 189     language_auto,              /* Placeholder for automatic setting */
 190     language_c,                 /* C */
 191     language_cplus,             /* C++ */
 192     language_d,                 /* D */
 193     language_go,                /* Go */
 194     language_objc,              /* Objective-C */
 195     language_java,              /* Java */
 196     language_fortran,           /* Fortran */
 197     language_m2,                /* Modula-2 */
 198     language_asm,               /* Assembly language */
 199     language_pascal,            /* Pascal */
 200     language_ada,               /* Ada */
 201     language_opencl,            /* OpenCL */
 202     language_minimal,           /* All other languages, minimal support only */
 203     nr_languages
 204   };
 205
 206 enum precision_type
 207   {
 208     single_precision,
 209     double_precision,
 210     unspecified_precision
 211   };
 212
 213 /* * A generic, not quite boolean, enumeration.  This is used for
 214    set/show commands in which the options are on/off/automatic.  */
 215 enum auto_boolean
 216 {
 217   AUTO_BOOLEAN_TRUE,
 218   AUTO_BOOLEAN_FALSE,
 219   AUTO_BOOLEAN_AUTO
 220 };
 221
 222 /* * Potential ways that a function can return a value of a given
 223    type.  */
 224
 225 enum return_value_convention
 226 {
 227   /* * Where the return value has been squeezed into one or more
 228      registers.  */
 229   RETURN_VALUE_REGISTER_CONVENTION,
 230   /* * Commonly known as the "struct return convention".  The caller
 231      passes an additional hidden first parameter to the caller.  That
 232      parameter contains the address at which the value being returned
 233      should be stored.  While typically, and historically, used for
 234      large structs, this is convention is applied to values of many
 235      different types.  */
 236   RETURN_VALUE_STRUCT_CONVENTION,
 237   /* * Like the "struct return convention" above, but where the ABI
 238      guarantees that the called function stores the address at which
 239      the value being returned is stored in a well-defined location,
 240      such as a register or memory slot in the stack frame.  Don't use
 241      this if the ABI doesn't explicitly guarantees this.  */
 242   RETURN_VALUE_ABI_RETURNS_ADDRESS,
 243   /* * Like the "struct return convention" above, but where the ABI
 244      guarantees that the address at which the value being returned is
 245      stored will be available in a well-defined location, such as a
 246      register or memory slot in the stack frame.  Don't use this if
 247      the ABI doesn't explicitly guarantees this.  */
 248   RETURN_VALUE_ABI_PRESERVES_ADDRESS,
 249 };
 250
 251 /* Needed for various prototypes */
 252
 253 struct symtab;
 254 struct breakpoint;
 255 struct frame_info;
 256 struct gdbarch;
 257 struct value;
 258
 259 /* From main.c.  */
 260
 261 /* This really belong in utils.c (path-utils.c?), but it references some
 262    globals that are currently only available to main.c.  */
 263 extern char *relocate_gdb_directory (const char *initial, int flag);
 264
 265 \f
 266 /* Annotation stuff.  */
 267
 268 extern int annotation_level;    /* in stack.c */
 269 \f
 270
 271 /* From regex.c or libc.  BSD 4.4 declares this with the argument type as
 272    "const char *" in unistd.h, so we can't declare the argument
 273    as "char *".  */
 274
 275 extern char *re_comp (const char *);
 276
 277 /* From symfile.c */
 278
 279 extern void symbol_file_command (char *, int);
 280
 281 /* * Remote targets may wish to use this as their load function.  */
 282 extern void generic_load (const char *name, int from_tty);
 283
 284 /* * Report on STREAM the performance of memory transfer operation,
 285    such as 'load'.
 286    @param DATA_COUNT is the number of bytes transferred.
 287    @param WRITE_COUNT is the number of separate write operations, or 0,
 288    if that information is not available.
 289    @param START_TIME is the time at which an operation was started.
 290    @param END_TIME is the time at which an operation ended.  */
 291 struct timeval;
 292 extern void print_transfer_performance (struct ui_file *stream,
 293                                         unsigned long data_count,
 294                                         unsigned long write_count,
 295                                         const struct timeval *start_time,
 296                                         const struct timeval *end_time);
 297
 298 /* From top.c */
 299
 300 typedef void initialize_file_ftype (void);
 301
 302 extern char *gdb_readline (char *);
 303
 304 extern char *gdb_readline_wrapper (char *);
 305
 306 extern char *command_line_input (char *, int, char *);
 307
 308 extern void print_prompt (void);
 309
 310 extern int input_from_terminal_p (void);
 311
 312 extern int info_verbose;
 313
 314 /* From printcmd.c */
 315
 316 extern void set_next_address (struct gdbarch *, CORE_ADDR);
 317
 318 extern int print_address_symbolic (struct gdbarch *, CORE_ADDR,
 319                                    struct ui_file *, int, char *);
 320
 321 extern int build_address_symbolic (struct gdbarch *,
 322                                    CORE_ADDR addr,
 323                                    int do_demangle,
 324                                    char **name,
 325                                    int *offset,
 326                                    char **filename,
 327                                    int *line,
 328                                    int *unmapped);
 329
 330 extern void print_address (struct gdbarch *, CORE_ADDR, struct ui_file *);
 331 extern const char *pc_prefix (CORE_ADDR);
 332
 333 /* From source.c */
 334
 335 /* See openp function definition for their description.  */
 336 #define OPF_TRY_CWD_FIRST     0x01
 337 #define OPF_SEARCH_IN_PATH    0x02
 338 #define OPF_RETURN_REALPATH   0x04
 339
 340 extern int openp (const char *, int, const char *, int, char **);
 341
 342 extern int source_full_path_of (const char *, char **);
 343
 344 extern void mod_path (char *, char **);
 345
 346 extern void add_path (char *, char **, int);
 347
 348 extern void directory_switch (char *, int);
 349
 350 extern char *source_path;
 351
 352 extern void init_source_path (void);
 353
 354 /* From exec.c */
 355
 356 /* * Process memory area starting at ADDR with length SIZE.  Area is
 357    readable iff READ is non-zero, writable if WRITE is non-zero,
 358    executable if EXEC is non-zero.  Area is possibly changed against
 359    its original file based copy if MODIFIED is non-zero.  DATA is
 360    passed without changes from a caller.  */
 361
 362 typedef int (*find_memory_region_ftype) (CORE_ADDR addr, unsigned long size,
 363                                          int read, int write, int exec,
 364                                          int modified, void *data);
 365
 366 /* * Possible lvalue types.  Like enum language, this should be in
 367    value.h, but needs to be here for the same reason.  */
 368
 369 enum lval_type
 370   {
 371     /* * Not an lval.  */
 372     not_lval,
 373     /* * In memory.  */
 374     lval_memory,
 375     /* * In a register.  Registers are relative to a frame.  */
 376     lval_register,
 377     /* * In a gdb internal variable.  */
 378     lval_internalvar,
 379     /* * Value encapsulates a callable defined in an extension language.  */
 380     lval_xcallable,
 381     /* * Part of a gdb internal variable (structure field).  */
 382     lval_internalvar_component,
 383     /* * Value's bits are fetched and stored using functions provided
 384        by its creator.  */
 385     lval_computed
 386   };
 387
 388 /* * Control types for commands.  */
 389
 390 enum misc_command_type
 391   {
 392     ok_command,
 393     end_command,
 394     else_command,
 395     nop_command
 396   };
 397
 398 enum command_control_type
 399   {
 400     simple_control,
 401     break_control,
 402     continue_control,
 403     while_control,
 404     if_control,
 405     commands_control,
 406     python_control,
 407     guile_control,
 408     while_stepping_control,
 409     invalid_control
 410   };
 411
 412 /* * Structure for saved commands lines (for breakpoints, defined
 413    commands, etc).  */
 414
 415 struct command_line
 416   {
 417     struct command_line *next;
 418     char *line;
 419     enum command_control_type control_type;
 420     /* * The number of elements in body_list.  */
 421     int body_count;
 422     /* * For composite commands, the nested lists of commands.  For
 423        example, for "if" command this will contain the then branch and
 424        the else branch, if that is available.  */
 425     struct command_line **body_list;
 426   };
 427
 428 extern struct command_line *read_command_lines (char *, int, int,
 429                                                 void (*)(char *, void *),
 430                                                 void *);
 431 extern struct command_line *read_command_lines_1 (char * (*) (void), int,
 432                                                   void (*)(char *, void *),
 433                                                   void *);
 434
 435 extern void free_command_lines (struct command_line **);
 436
 437 /* * Parameters of the "info proc" command.  */
 438
 439 enum info_proc_what
 440   {
 441     /* * Display the default cmdline, cwd and exe outputs.  */
 442     IP_MINIMAL,
 443
 444     /* * Display `info proc mappings'.  */
 445     IP_MAPPINGS,
 446
 447     /* * Display `info proc status'.  */
 448     IP_STATUS,
 449
 450     /* * Display `info proc stat'.  */
 451     IP_STAT,
 452
 453     /* * Display `info proc cmdline'.  */
 454     IP_CMDLINE,
 455
 456     /* * Display `info proc exe'.  */
 457     IP_EXE,
 458
 459     /* * Display `info proc cwd'.  */
 460     IP_CWD,
 461
 462     /* * Display all of the above.  */
 463     IP_ALL
 464   };
 465
 466 /* * String containing the current directory (what getwd would return).  */
 467
 468 extern char *current_directory;
 469
 470 /* * Default radixes for input and output.  Only some values supported.  */
 471 extern unsigned input_radix;
 472 extern unsigned output_radix;
 473
 474 /* * Possibilities for prettyformat parameters to routines which print
 475    things.  Like enum language, this should be in value.h, but needs
 476    to be here for the same reason.  FIXME:  If we can eliminate this
 477    as an arg to LA_VAL_PRINT, then we can probably move it back to
 478    value.h.  */
 479
 480 enum val_prettyformat
 481   {
 482     Val_no_prettyformat = 0,
 483     Val_prettyformat,
 484     /* * Use the default setting which the user has specified.  */
 485     Val_prettyformat_default
 486   };
 487
 488 /* * Optional native machine support.  Non-native (and possibly pure
 489    multi-arch) targets do not need a "nm.h" file.  This will be a
 490    symlink to one of the nm-*.h files, built by the `configure'
 491    script.  */
 492
 493 #ifdef GDB_NM_FILE
 494 #include "nm.h"
 495 #endif
 496
 497 /* Assume that fopen accepts the letter "b" in the mode string.
 498    It is demanded by ISO C9X, and should be supported on all
 499    platforms that claim to have a standard-conforming C library.  On
 500    true POSIX systems it will be ignored and have no effect.  There
 501    may still be systems without a standard-conforming C library where
 502    an ISO C9X compiler (GCC) is available.  Known examples are SunOS
 503    4.x and 4.3BSD.  This assumption means these systems are no longer
 504    supported.  */
 505 #ifndef FOPEN_RB
 506 # include "fopen-bin.h"
 507 #endif
 508
 509 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
 510    FIXME: Assumes 2's complement arithmetic.  */
 511
 512 #if !defined (UINT_MAX)
 513 #define UINT_MAX ((unsigned int)(~0))       /* 0xFFFFFFFF for 32-bits */
 514 #endif
 515
 516 #if !defined (INT_MAX)
 517 #define INT_MAX ((int)(UINT_MAX >> 1))      /* 0x7FFFFFFF for 32-bits */
 518 #endif
 519
 520 #if !defined (INT_MIN)
 521 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
 522 #endif
 523
 524 #if !defined (ULONG_MAX)
 525 #define ULONG_MAX ((unsigned long)(~0L))    /* 0xFFFFFFFF for 32-bits */
 526 #endif
 527
 528 #if !defined (LONG_MAX)
 529 #define LONG_MAX ((long)(ULONG_MAX >> 1))   /* 0x7FFFFFFF for 32-bits */
 530 #endif
 531
 532 #if !defined (ULONGEST_MAX)
 533 #define ULONGEST_MAX (~(ULONGEST)0)        /* 0xFFFFFFFFFFFFFFFF for 64-bits */
 534 #endif
 535
 536 #if !defined (LONGEST_MAX)                 /* 0x7FFFFFFFFFFFFFFF for 64-bits */
 537 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
 538 #endif
 539
 540 /* * Convert a LONGEST to an int.  This is used in contexts (e.g. number of
 541    arguments to a function, number in a value history, register number, etc.)
 542    where the value must not be larger than can fit in an int.  */
 543
 544 extern int longest_to_int (LONGEST);
 545
 546 #include "common-utils.h"
 547
 548 /* * List of known OS ABIs.  If you change this, make sure to update the
 549    table in osabi.c.  */
 550 enum gdb_osabi
 551 {
 552   GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info.  */
 553
 554   GDB_OSABI_UNKNOWN = 0,        /* keep this zero */
 555
 556   GDB_OSABI_SVR4,
 557   GDB_OSABI_HURD,
 558   GDB_OSABI_SOLARIS,
 559   GDB_OSABI_OSF1,
 560   GDB_OSABI_LINUX,
 561   GDB_OSABI_FREEBSD_AOUT,
 562   GDB_OSABI_FREEBSD_ELF,
 563   GDB_OSABI_NETBSD_AOUT,
 564   GDB_OSABI_NETBSD_ELF,
 565   GDB_OSABI_OPENBSD_ELF,
 566   GDB_OSABI_WINCE,
 567   GDB_OSABI_GO32,
 568   GDB_OSABI_IRIX,
 569   GDB_OSABI_HPUX_ELF,
 570   GDB_OSABI_HPUX_SOM,
 571   GDB_OSABI_QNXNTO,
 572   GDB_OSABI_CYGWIN,
 573   GDB_OSABI_AIX,
 574   GDB_OSABI_DICOS,
 575   GDB_OSABI_DARWIN,
 576   GDB_OSABI_SYMBIAN,
 577   GDB_OSABI_OPENVMS,
 578   GDB_OSABI_LYNXOS178,
 579   GDB_OSABI_NEWLIB,
 580
 581   GDB_OSABI_INVALID             /* keep this last */
 582 };
 583
 584 /* Global functions from other, non-gdb GNU thingies.
 585    Libiberty thingies are no longer declared here.  We include libiberty.h
 586    above, instead.  */
 587
 588 /* From other system libraries */
 589
 590 #ifndef atof
 591 extern double atof (const char *);      /* X3.159-1989  4.10.1.1 */
 592 #endif
 593
 594 /* Various possibilities for alloca.  */
 595 #ifndef alloca
 596 #ifdef __GNUC__
 597 #define alloca __builtin_alloca
 598 #else /* Not GNU C */
 599 #ifdef HAVE_ALLOCA_H
 600 #include <alloca.h>
 601 #else
 602 #ifdef _AIX
 603 #pragma alloca
 604 #else
 605
 606 /* We need to be careful not to declare this in a way which conflicts with
 607    bison.  Bison never declares it as char *, but under various circumstances
 608    (like __hpux) we need to use void *.  */
 609 extern void *alloca ();
 610 #endif /* Not _AIX */
 611 #endif /* Not HAVE_ALLOCA_H */
 612 #endif /* Not GNU C */
 613 #endif /* alloca not defined */
 614
 615 /* Dynamic target-system-dependent parameters for GDB.  */
 616 #include "gdbarch.h"
 617
 618 /* * Maximum size of a register.  Something small, but large enough for
 619    all known ISAs.  If it turns out to be too small, make it bigger.  */
 620
 621 enum { MAX_REGISTER_SIZE = 64 };
 622
 623 /* Static target-system-dependent parameters for GDB.  */
 624
 625 /* * Number of bits in a char or unsigned char for the target machine.
 626    Just like CHAR_BIT in <limits.h> but describes the target machine.  */
 627 #if !defined (TARGET_CHAR_BIT)
 628 #define TARGET_CHAR_BIT 8
 629 #endif
 630
 631 /* * If we picked up a copy of CHAR_BIT from a configuration file
 632    (which may get it by including <limits.h>) then use it to set
 633    the number of bits in a host char.  If not, use the same size
 634    as the target.  */
 635
 636 #if defined (CHAR_BIT)
 637 #define HOST_CHAR_BIT CHAR_BIT
 638 #else
 639 #define HOST_CHAR_BIT TARGET_CHAR_BIT
 640 #endif
 641
 642 /* In findvar.c.  */
 643
 644 extern LONGEST extract_signed_integer (const gdb_byte *, int,
 645                                        enum bfd_endian);
 646
 647 extern ULONGEST extract_unsigned_integer (const gdb_byte *, int,
 648                                           enum bfd_endian);
 649
 650 extern int extract_long_unsigned_integer (const gdb_byte *, int,
 651                                           enum bfd_endian, LONGEST *);
 652
 653 extern CORE_ADDR extract_typed_address (const gdb_byte *buf,
 654                                         struct type *type);
 655
 656 extern void store_signed_integer (gdb_byte *, int,
 657                                   enum bfd_endian, LONGEST);
 658
 659 extern void store_unsigned_integer (gdb_byte *, int,
 660                                     enum bfd_endian, ULONGEST);
 661
 662 extern void store_typed_address (gdb_byte *buf, struct type *type,
 663                                  CORE_ADDR addr);
 664
 665 \f
 666 /* From valops.c */
 667
 668 extern int watchdog;
 669
 670 /* Hooks for alternate command interfaces.  */
 671
 672 /* * The name of the interpreter if specified on the command line.  */
 673 extern char *interpreter_p;
 674
 675 /* If a given interpreter matches INTERPRETER_P then it should update
 676    deprecated_init_ui_hook with the per-interpreter implementation.  */
 677 /* FIXME: deprecated_init_ui_hook should be moved here.  */
 678
 679 struct target_waitstatus;
 680 struct cmd_list_element;
 681
 682 extern void (*deprecated_pre_add_symbol_hook) (const char *);
 683 extern void (*deprecated_post_add_symbol_hook) (void);
 684 extern void (*selected_frame_level_changed_hook) (int);
 685 extern int (*deprecated_ui_loop_hook) (int signo);
 686 extern void (*deprecated_init_ui_hook) (char *argv0);
 687 extern void (*deprecated_show_load_progress) (const char *section,
 688                                               unsigned long section_sent,
 689                                               unsigned long section_size,
 690                                               unsigned long total_sent,
 691                                               unsigned long total_size);
 692 extern void (*deprecated_print_frame_info_listing_hook) (struct symtab * s,
 693                                                          int line,
 694                                                          int stopline,
 695                                                          int noerror);
 696 extern int (*deprecated_query_hook) (const char *, va_list)
 697      ATTRIBUTE_FPTR_PRINTF(1,0);
 698 extern void (*deprecated_warning_hook) (const char *, va_list)
 699      ATTRIBUTE_FPTR_PRINTF(1,0);
 700 extern void (*deprecated_interactive_hook) (void);
 701 extern void (*deprecated_readline_begin_hook) (char *, ...)
 702      ATTRIBUTE_FPTR_PRINTF_1;
 703 extern char *(*deprecated_readline_hook) (char *);
 704 extern void (*deprecated_readline_end_hook) (void);
 705 extern void (*deprecated_register_changed_hook) (int regno);
 706 extern void (*deprecated_context_hook) (int);
 707 extern ptid_t (*deprecated_target_wait_hook) (ptid_t ptid,
 708                                               struct target_waitstatus *status,
 709                                               int options);
 710
 711 extern void (*deprecated_attach_hook) (void);
 712 extern void (*deprecated_detach_hook) (void);
 713 extern void (*deprecated_call_command_hook) (struct cmd_list_element * c,
 714                                              char *cmd, int from_tty);
 715
 716 extern int (*deprecated_ui_load_progress_hook) (const char *section,
 717                                                 unsigned long num);
 718
 719 /* If this definition isn't overridden by the header files, assume
 720    that isatty and fileno exist on this system.  */
 721 #ifndef ISATTY
 722 #define ISATTY(FP)      (isatty (fileno (FP)))
 723 #endif
 724
 725 /* * A width that can achieve a better legibility for GDB MI mode.  */
 726 #define GDB_MI_MSG_WIDTH  80
 727
 728 /* From progspace.c */
 729
 730 extern void initialize_progspace (void);
 731 extern void initialize_inferiors (void);
 732
 733 /* * Special block numbers */
 734
 735 enum block_enum
 736 {
 737   GLOBAL_BLOCK = 0,
 738   STATIC_BLOCK = 1,
 739   FIRST_LOCAL_BLOCK = 2
 740 };
 741
 742 #include "utils.h"
 743
 744 #endif /* #ifndef DEFS_H */