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 "config.h"             /* Generated by configure.  */
  29 #include "build-gnulib/config.h"
  30
  31 #include <sys/types.h>
  32 #include <stdio.h>
  33 #include <errno.h>              /* System call error return status.  */
  34 #include <limits.h>
  35 #include <stdint.h>
  36
  37 /* The libdecnumber library, on which GDB depends, includes a header file
  38    called gstdint.h instead of relying directly on stdint.h.  GDB, on the
  39    other hand, includes stdint.h directly, relying on the fact that gnulib
  40    generates a copy if the system doesn't provide one or if it is missing
  41    some features.  Unfortunately, gstdint.h and stdint.h cannot be included
  42    at the same time, which may happen when we include a file from
  43    libdecnumber.
  44
  45    The following macro definition effectively prevents the inclusion of
  46    gstdint.h, as all the definitions it provides are guarded against
  47    the GCC_GENERATED_STDINT_H macro.  We already have gnulib/stdint.h
  48    included, so it's ok to blank out gstdint.h.  */
  49 #define GCC_GENERATED_STDINT_H 1
  50
  51 #include <stddef.h>
  52
  53 #include <unistd.h>
  54
  55 /* For gnulib's PATH_MAX.  */
  56 #include "pathmax.h"
  57
  58 #include <fcntl.h>
  59
  60 /* First include ansidecl.h so we can use the various macro definitions
  61    here and in all subsequent file inclusions.  */
  62
  63 #include "ansidecl.h"
  64
  65 #include "gdb_locale.h"
  66
  67 #include "gdb_wchar.h"
  68
  69 /* For ``enum gdb_signal''.  */
  70 #include "gdb/signals.h"
  71
  72 #include "ui-file.h"
  73
  74 #include "host-defs.h"
  75
  76 /* Just in case they're not defined in stdio.h.  */
  77
  78 #ifndef SEEK_SET
  79 #define SEEK_SET 0
  80 #endif
  81 #ifndef SEEK_CUR
  82 #define SEEK_CUR 1
  83 #endif
  84
  85 /* The O_BINARY flag is defined in fcntl.h on some non-Posix platforms.
  86    It is used as an access modifier in calls to open(), where it acts
  87    similarly to the "b" character in fopen()'s MODE argument.  On Posix
  88    platforms it should be a no-op, so it is defined as 0 here.  This
  89    ensures that the symbol may be used freely elsewhere in gdb.  */
  90
  91 #ifndef O_BINARY
  92 #define O_BINARY 0
  93 #endif
  94
  95 #include <stdarg.h>             /* For va_list.  */
  96
  97 #include "libiberty.h"
  98 #include "hashtab.h"
  99
 100 /* Rather than duplicate all the logic in BFD for figuring out what
 101    types to use (which can be pretty complicated), symply define them
 102    in terms of the corresponding type from BFD.  */
 103
 104 #include "bfd.h"
 105
 106 /* A byte from the program being debugged.  */
 107 typedef bfd_byte gdb_byte;
 108
 109 /* An address in the program being debugged.  Host byte order.  */
 110 typedef bfd_vma CORE_ADDR;
 111
 112 /* The largest CORE_ADDR value.  */
 113 #define CORE_ADDR_MAX (~ (CORE_ADDR) 0)
 114
 115 /* This is to make sure that LONGEST is at least as big as CORE_ADDR.  */
 116
 117 #ifdef BFD64
 118
 119 #define LONGEST BFD_HOST_64_BIT
 120 #define ULONGEST BFD_HOST_U_64_BIT
 121
 122 #else /* No BFD64 */
 123
 124 #define LONGEST long long
 125 #define ULONGEST unsigned long long
 126
 127 #endif /* No BFD64 */
 128
 129 #ifndef min
 130 #define min(a, b) ((a) < (b) ? (a) : (b))
 131 #endif
 132 #ifndef max
 133 #define max(a, b) ((a) > (b) ? (a) : (b))
 134 #endif
 135
 136 #include "ptid.h"
 137
 138 /* Enable xdb commands if set.  */
 139 extern int xdb_commands;
 140
 141 /* Enable dbx commands if set.  */
 142 extern int dbx_commands;
 143
 144 /* System root path, used to find libraries etc.  */
 145 extern char *gdb_sysroot;
 146
 147 /* GDB datadir, used to store data files.  */
 148 extern char *gdb_datadir;
 149
 150 /* If non-NULL, the possibly relocated path to python's "lib" directory
 151    specified with --with-python.  */
 152 extern char *python_libdir;
 153
 154 /* Search path for separate debug files.  */
 155 extern char *debug_file_directory;
 156
 157 /* GDB has two methods for handling SIGINT.  When immediate_quit is
 158    nonzero, a SIGINT results in an immediate longjmp out of the signal
 159    handler.  Otherwise, SIGINT simply sets a flag; code that might
 160    take a long time, and which ought to be interruptible, checks this
 161    flag using the QUIT macro.
 162
 163    These functions use the extension_language_ops API to allow extension
 164    language(s) and GDB SIGINT handling to coexist seamlessly.  */
 165
 166 /* Clear the quit flag.  */
 167 extern void clear_quit_flag (void);
 168 /* Evaluate to non-zero if the quit flag is set, zero otherwise.  This
 169    will clear the quit flag as a side effect.  */
 170 extern int check_quit_flag (void);
 171 /* Set the quit flag.  */
 172 extern void set_quit_flag (void);
 173
 174 extern int immediate_quit;
 175
 176 extern void quit (void);
 177
 178 /* FIXME: cagney/2000-03-13: It has been suggested that the peformance
 179    benefits of having a ``QUIT'' macro rather than a function are
 180    marginal.  If the overhead of a QUIT function call is proving
 181    significant then its calling frequency should probably be reduced
 182    [kingdon].  A profile analyzing the current situtation is
 183    needed.  */
 184
 185 #define QUIT { \
 186   if (check_quit_flag ()) quit (); \
 187   if (deprecated_interactive_hook) deprecated_interactive_hook (); \
 188 }
 189
 190 /* Languages represented in the symbol table and elsewhere.
 191    This should probably be in language.h, but since enum's can't
 192    be forward declared to satisfy opaque references before their
 193    actual definition, needs to be here.  */
 194
 195 enum language
 196   {
 197     language_unknown,           /* Language not known */
 198     language_auto,              /* Placeholder for automatic setting */
 199     language_c,                 /* C */
 200     language_cplus,             /* C++ */
 201     language_d,                 /* D */
 202     language_go,                /* Go */
 203     language_objc,              /* Objective-C */
 204     language_java,              /* Java */
 205     language_fortran,           /* Fortran */
 206     language_m2,                /* Modula-2 */
 207     language_asm,               /* Assembly language */
 208     language_pascal,            /* Pascal */
 209     language_ada,               /* Ada */
 210     language_opencl,            /* OpenCL */
 211     language_minimal,           /* All other languages, minimal support only */
 212     nr_languages
 213   };
 214
 215 enum precision_type
 216   {
 217     single_precision,
 218     double_precision,
 219     unspecified_precision
 220   };
 221
 222 /* A generic, not quite boolean, enumeration.  */
 223 enum auto_boolean
 224 {
 225   AUTO_BOOLEAN_TRUE,
 226   AUTO_BOOLEAN_FALSE,
 227   AUTO_BOOLEAN_AUTO
 228 };
 229
 230 /* Potential ways that a function can return a value of a given type.  */
 231 enum return_value_convention
 232 {
 233   /* Where the return value has been squeezed into one or more
 234      registers.  */
 235   RETURN_VALUE_REGISTER_CONVENTION,
 236   /* Commonly known as the "struct return convention".  The caller
 237      passes an additional hidden first parameter to the caller.  That
 238      parameter contains the address at which the value being returned
 239      should be stored.  While typically, and historically, used for
 240      large structs, this is convention is applied to values of many
 241      different types.  */
 242   RETURN_VALUE_STRUCT_CONVENTION,
 243   /* Like the "struct return convention" above, but where the ABI
 244      guarantees that the called function stores the address at which
 245      the value being returned is stored in a well-defined location,
 246      such as a register or memory slot in the stack frame.  Don't use
 247      this if the ABI doesn't explicitly guarantees this.  */
 248   RETURN_VALUE_ABI_RETURNS_ADDRESS,
 249   /* Like the "struct return convention" above, but where the ABI
 250      guarantees that the address at which the value being returned is
 251      stored will be available in a well-defined location, such as a
 252      register or memory slot in the stack frame.  Don't use this if
 253      the ABI doesn't explicitly guarantees this.  */
 254   RETURN_VALUE_ABI_PRESERVES_ADDRESS,
 255 };
 256
 257 /* Needed for various prototypes */
 258
 259 struct symtab;
 260 struct breakpoint;
 261 struct frame_info;
 262 struct gdbarch;
 263 struct value;
 264
 265 /* From main.c.  */
 266
 267 /* This really belong in utils.c (path-utils.c?), but it references some
 268    globals that are currently only available to main.c.  */
 269 extern char *relocate_gdb_directory (const char *initial, int flag);
 270
 271 \f
 272 /* Annotation stuff.  */
 273
 274 extern int annotation_level;    /* in stack.c */
 275 \f
 276
 277 /* From regex.c or libc.  BSD 4.4 declares this with the argument type as
 278    "const char *" in unistd.h, so we can't declare the argument
 279    as "char *".  */
 280
 281 extern char *re_comp (const char *);
 282
 283 /* From symfile.c */
 284
 285 extern void symbol_file_command (char *, int);
 286
 287 /* Remote targets may wish to use this as their load function.  */
 288 extern void generic_load (char *name, int from_tty);
 289
 290 /* Report on STREAM the performance of memory transfer operation,
 291    such as 'load'.
 292    DATA_COUNT is the number of bytes transferred.
 293    WRITE_COUNT is the number of separate write operations, or 0,
 294    if that information is not available.
 295    START_TIME is the time at which an operation was started.
 296    END_TIME is the time at which an operation ended.  */
 297 struct timeval;
 298 extern void print_transfer_performance (struct ui_file *stream,
 299                                         unsigned long data_count,
 300                                         unsigned long write_count,
 301                                         const struct timeval *start_time,
 302                                         const struct timeval *end_time);
 303
 304 /* From top.c */
 305
 306 typedef void initialize_file_ftype (void);
 307
 308 extern char *gdb_readline (char *);
 309
 310 extern char *gdb_readline_wrapper (char *);
 311
 312 extern char *command_line_input (char *, int, char *);
 313
 314 extern void print_prompt (void);
 315
 316 extern int input_from_terminal_p (void);
 317
 318 extern int info_verbose;
 319
 320 /* From printcmd.c */
 321
 322 extern void set_next_address (struct gdbarch *, CORE_ADDR);
 323
 324 extern int print_address_symbolic (struct gdbarch *, CORE_ADDR,
 325                                    struct ui_file *, int, char *);
 326
 327 extern int build_address_symbolic (struct gdbarch *,
 328                                    CORE_ADDR addr,
 329                                    int do_demangle,
 330                                    char **name,
 331                                    int *offset,
 332                                    char **filename,
 333                                    int *line,
 334                                    int *unmapped);
 335
 336 extern void print_address (struct gdbarch *, CORE_ADDR, struct ui_file *);
 337 extern const char *pc_prefix (CORE_ADDR);
 338
 339 /* From source.c */
 340
 341 /* See openp function definition for their description.  */
 342 #define OPF_TRY_CWD_FIRST     0x01
 343 #define OPF_SEARCH_IN_PATH    0x02
 344 #define OPF_RETURN_REALPATH   0x04
 345
 346 extern int openp (const char *, int, const char *, int, char **);
 347
 348 extern int source_full_path_of (const char *, char **);
 349
 350 extern void mod_path (char *, char **);
 351
 352 extern void add_path (char *, char **, int);
 353
 354 extern void directory_switch (char *, int);
 355
 356 extern char *source_path;
 357
 358 extern void init_source_path (void);
 359
 360 /* From exec.c */
 361
 362 /* Process memory area starting at ADDR with length SIZE.  Area is readable iff
 363    READ is non-zero, writable if WRITE is non-zero, executable if EXEC is
 364    non-zero.  Area is possibly changed against its original file based copy if
 365    MODIFIED is non-zero.  DATA is passed without changes from a caller.  */
 366
 367 typedef int (*find_memory_region_ftype) (CORE_ADDR addr, unsigned long size,
 368                                          int read, int write, int exec,
 369                                          int modified, void *data);
 370
 371 /* Possible lvalue types.  Like enum language, this should be in
 372    value.h, but needs to be here for the same reason.  */
 373
 374 enum lval_type
 375   {
 376     /* Not an lval.  */
 377     not_lval,
 378     /* In memory.  */
 379     lval_memory,
 380     /* In a register.  Registers are relative to a frame.  */
 381     lval_register,
 382     /* In a gdb internal variable.  */
 383     lval_internalvar,
 384     /* Part of a gdb internal variable (structure field).  */
 385     lval_internalvar_component,
 386     /* Value's bits are fetched and stored using functions provided by
 387        its creator.  */
 388     lval_computed
 389   };
 390
 391 /* Control types for commands */
 392
 393 enum misc_command_type
 394   {
 395     ok_command,
 396     end_command,
 397     else_command,
 398     nop_command
 399   };
 400
 401 enum command_control_type
 402   {
 403     simple_control,
 404     break_control,
 405     continue_control,
 406     while_control,
 407     if_control,
 408     commands_control,
 409     python_control,
 410     guile_control,
 411     while_stepping_control,
 412     invalid_control
 413   };
 414
 415 /* Structure for saved commands lines
 416    (for breakpoints, defined commands, etc).  */
 417
 418 struct command_line
 419   {
 420     struct command_line *next;
 421     char *line;
 422     enum command_control_type control_type;
 423     /* The number of elements in body_list.  */
 424     int body_count;
 425     /* For composite commands, the nested lists of commands.  For
 426        example, for "if" command this will contain the then branch and
 427        the else branch, if that is available.  */
 428     struct command_line **body_list;
 429   };
 430
 431 extern struct command_line *read_command_lines (char *, int, int,
 432                                                 void (*)(char *, void *),
 433                                                 void *);
 434 extern struct command_line *read_command_lines_1 (char * (*) (void), int,
 435                                                   void (*)(char *, void *),
 436                                                   void *);
 437
 438 extern void free_command_lines (struct command_line **);
 439
 440 /* Parameters of the "info proc" command.  */
 441
 442 enum info_proc_what
 443   {
 444     /* Display the default cmdline, cwd and exe outputs.  */
 445     IP_MINIMAL,
 446
 447     /* Display `info proc mappings'.  */
 448     IP_MAPPINGS,
 449
 450     /* Display `info proc status'.  */
 451     IP_STATUS,
 452
 453     /* Display `info proc stat'.  */
 454     IP_STAT,
 455
 456     /* Display `info proc cmdline'.  */
 457     IP_CMDLINE,
 458
 459     /* Display `info proc exe'.  */
 460     IP_EXE,
 461
 462     /* Display `info proc cwd'.  */
 463     IP_CWD,
 464
 465     /* Display all of the above.  */
 466     IP_ALL
 467   };
 468
 469 /* String containing the current directory (what getwd would return).  */
 470
 471 extern char *current_directory;
 472
 473 /* Default radixes for input and output.  Only some values supported.  */
 474 extern unsigned input_radix;
 475 extern unsigned output_radix;
 476
 477 /* Possibilities for prettyformat parameters to routines which print
 478    things.  Like enum language, this should be in value.h, but needs
 479    to be here for the same reason.  FIXME:  If we can eliminate this
 480    as an arg to LA_VAL_PRINT, then we can probably move it back to
 481    value.h.  */
 482
 483 enum val_prettyformat
 484   {
 485     Val_no_prettyformat = 0,
 486     Val_prettyformat,
 487     /* Use the default setting which the user has specified.  */
 488     Val_prettyformat_default
 489   };
 490
 491 /* Optional native machine support.  Non-native (and possibly pure
 492    multi-arch) targets do not need a "nm.h" file.  This will be a
 493    symlink to one of the nm-*.h files, built by the `configure'
 494    script.  */
 495
 496 #ifdef GDB_NM_FILE
 497 #include "nm.h"
 498 #endif
 499
 500 /* Assume that fopen accepts the letter "b" in the mode string.
 501    It is demanded by ISO C9X, and should be supported on all
 502    platforms that claim to have a standard-conforming C library.  On
 503    true POSIX systems it will be ignored and have no effect.  There
 504    may still be systems without a standard-conforming C library where
 505    an ISO C9X compiler (GCC) is available.  Known examples are SunOS
 506    4.x and 4.3BSD.  This assumption means these systems are no longer
 507    supported.  */
 508 #ifndef FOPEN_RB
 509 # include "fopen-bin.h"
 510 #endif
 511
 512 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
 513    FIXME: Assumes 2's complement arithmetic.  */
 514
 515 #if !defined (UINT_MAX)
 516 #define UINT_MAX ((unsigned int)(~0))       /* 0xFFFFFFFF for 32-bits */
 517 #endif
 518
 519 #if !defined (INT_MAX)
 520 #define INT_MAX ((int)(UINT_MAX >> 1))      /* 0x7FFFFFFF for 32-bits */
 521 #endif
 522
 523 #if !defined (INT_MIN)
 524 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
 525 #endif
 526
 527 #if !defined (ULONG_MAX)
 528 #define ULONG_MAX ((unsigned long)(~0L))    /* 0xFFFFFFFF for 32-bits */
 529 #endif
 530
 531 #if !defined (LONG_MAX)
 532 #define LONG_MAX ((long)(ULONG_MAX >> 1))   /* 0x7FFFFFFF for 32-bits */
 533 #endif
 534
 535 #if !defined (ULONGEST_MAX)
 536 #define ULONGEST_MAX (~(ULONGEST)0)        /* 0xFFFFFFFFFFFFFFFF for 64-bits */
 537 #endif
 538
 539 #if !defined (LONGEST_MAX)                 /* 0x7FFFFFFFFFFFFFFF for 64-bits */
 540 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
 541 #endif
 542
 543 /* Convert a LONGEST to an int.  This is used in contexts (e.g. number of
 544    arguments to a function, number in a value history, register number, etc.)
 545    where the value must not be larger than can fit in an int.  */
 546
 547 extern int longest_to_int (LONGEST);
 548
 549 #include "common-utils.h"
 550
 551 /* List of known OS ABIs.  If you change this, make sure to update the
 552    table in osabi.c.  */
 553 enum gdb_osabi
 554 {
 555   GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info.  */
 556
 557   GDB_OSABI_UNKNOWN = 0,        /* keep this zero */
 558
 559   GDB_OSABI_SVR4,
 560   GDB_OSABI_HURD,
 561   GDB_OSABI_SOLARIS,
 562   GDB_OSABI_OSF1,
 563   GDB_OSABI_LINUX,
 564   GDB_OSABI_FREEBSD_AOUT,
 565   GDB_OSABI_FREEBSD_ELF,
 566   GDB_OSABI_NETBSD_AOUT,
 567   GDB_OSABI_NETBSD_ELF,
 568   GDB_OSABI_OPENBSD_ELF,
 569   GDB_OSABI_WINCE,
 570   GDB_OSABI_GO32,
 571   GDB_OSABI_IRIX,
 572   GDB_OSABI_HPUX_ELF,
 573   GDB_OSABI_HPUX_SOM,
 574   GDB_OSABI_QNXNTO,
 575   GDB_OSABI_CYGWIN,
 576   GDB_OSABI_AIX,
 577   GDB_OSABI_DICOS,
 578   GDB_OSABI_DARWIN,
 579   GDB_OSABI_SYMBIAN,
 580   GDB_OSABI_OPENVMS,
 581   GDB_OSABI_LYNXOS178,
 582   GDB_OSABI_NEWLIB,
 583
 584   GDB_OSABI_INVALID             /* keep this last */
 585 };
 586
 587 /* Global functions from other, non-gdb GNU thingies.
 588    Libiberty thingies are no longer declared here.  We include libiberty.h
 589    above, instead.  */
 590
 591 /* From other system libraries */
 592
 593 #include <stdlib.h>
 594
 595
 596 #ifndef atof
 597 extern double atof (const char *);      /* X3.159-1989  4.10.1.1 */
 598 #endif
 599
 600 /* Various possibilities for alloca.  */
 601 #ifndef alloca
 602 #ifdef __GNUC__
 603 #define alloca __builtin_alloca
 604 #else /* Not GNU C */
 605 #ifdef HAVE_ALLOCA_H
 606 #include <alloca.h>
 607 #else
 608 #ifdef _AIX
 609 #pragma alloca
 610 #else
 611
 612 /* We need to be careful not to declare this in a way which conflicts with
 613    bison.  Bison never declares it as char *, but under various circumstances
 614    (like __hpux) we need to use void *.  */
 615 extern void *alloca ();
 616 #endif /* Not _AIX */
 617 #endif /* Not HAVE_ALLOCA_H */
 618 #endif /* Not GNU C */
 619 #endif /* alloca not defined */
 620
 621 /* Dynamic target-system-dependent parameters for GDB.  */
 622 #include "gdbarch.h"
 623
 624 /* Maximum size of a register.  Something small, but large enough for
 625    all known ISAs.  If it turns out to be too small, make it bigger.  */
 626
 627 enum { MAX_REGISTER_SIZE = 64 };
 628
 629 /* Static target-system-dependent parameters for GDB.  */
 630
 631 /* Number of bits in a char or unsigned char for the target machine.
 632    Just like CHAR_BIT in <limits.h> but describes the target machine.  */
 633 #if !defined (TARGET_CHAR_BIT)
 634 #define TARGET_CHAR_BIT 8
 635 #endif
 636
 637 /* If we picked up a copy of CHAR_BIT from a configuration file
 638    (which may get it by including <limits.h>) then use it to set
 639    the number of bits in a host char.  If not, use the same size
 640    as the target.  */
 641
 642 #if defined (CHAR_BIT)
 643 #define HOST_CHAR_BIT CHAR_BIT
 644 #else
 645 #define HOST_CHAR_BIT TARGET_CHAR_BIT
 646 #endif
 647
 648 /* In findvar.c.  */
 649
 650 extern LONGEST extract_signed_integer (const gdb_byte *, int,
 651                                        enum bfd_endian);
 652
 653 extern ULONGEST extract_unsigned_integer (const gdb_byte *, int,
 654                                           enum bfd_endian);
 655
 656 extern int extract_long_unsigned_integer (const gdb_byte *, int,
 657                                           enum bfd_endian, LONGEST *);
 658
 659 extern CORE_ADDR extract_typed_address (const gdb_byte *buf,
 660                                         struct type *type);
 661
 662 extern void store_signed_integer (gdb_byte *, int,
 663                                   enum bfd_endian, LONGEST);
 664
 665 extern void store_unsigned_integer (gdb_byte *, int,
 666                                     enum bfd_endian, ULONGEST);
 667
 668 extern void store_typed_address (gdb_byte *buf, struct type *type,
 669                                  CORE_ADDR addr);
 670
 671 \f
 672 /* From valops.c */
 673
 674 extern int watchdog;
 675
 676 /* Hooks for alternate command interfaces.  */
 677
 678 /* The name of the interpreter if specified on the command line.  */
 679 extern char *interpreter_p;
 680
 681 /* If a given interpreter matches INTERPRETER_P then it should update
 682    deprecated_init_ui_hook with the per-interpreter implementation.  */
 683 /* FIXME: deprecated_init_ui_hook should be moved here.  */
 684
 685 struct target_waitstatus;
 686 struct cmd_list_element;
 687
 688 extern void (*deprecated_pre_add_symbol_hook) (const char *);
 689 extern void (*deprecated_post_add_symbol_hook) (void);
 690 extern void (*selected_frame_level_changed_hook) (int);
 691 extern int (*deprecated_ui_loop_hook) (int signo);
 692 extern void (*deprecated_init_ui_hook) (char *argv0);
 693 extern void (*deprecated_show_load_progress) (const char *section,
 694                                               unsigned long section_sent,
 695                                               unsigned long section_size,
 696                                               unsigned long total_sent,
 697                                               unsigned long total_size);
 698 extern void (*deprecated_print_frame_info_listing_hook) (struct symtab * s,
 699                                                          int line,
 700                                                          int stopline,
 701                                                          int noerror);
 702 extern int (*deprecated_query_hook) (const char *, va_list)
 703      ATTRIBUTE_FPTR_PRINTF(1,0);
 704 extern void (*deprecated_warning_hook) (const char *, va_list)
 705      ATTRIBUTE_FPTR_PRINTF(1,0);
 706 extern void (*deprecated_interactive_hook) (void);
 707 extern void (*deprecated_readline_begin_hook) (char *, ...)
 708      ATTRIBUTE_FPTR_PRINTF_1;
 709 extern char *(*deprecated_readline_hook) (char *);
 710 extern void (*deprecated_readline_end_hook) (void);
 711 extern void (*deprecated_register_changed_hook) (int regno);
 712 extern void (*deprecated_context_hook) (int);
 713 extern ptid_t (*deprecated_target_wait_hook) (ptid_t ptid,
 714                                               struct target_waitstatus *status,
 715                                               int options);
 716
 717 extern void (*deprecated_attach_hook) (void);
 718 extern void (*deprecated_detach_hook) (void);
 719 extern void (*deprecated_call_command_hook) (struct cmd_list_element * c,
 720                                              char *cmd, int from_tty);
 721
 722 extern int (*deprecated_ui_load_progress_hook) (const char *section,
 723                                                 unsigned long num);
 724
 725 /* If this definition isn't overridden by the header files, assume
 726    that isatty and fileno exist on this system.  */
 727 #ifndef ISATTY
 728 #define ISATTY(FP)      (isatty (fileno (FP)))
 729 #endif
 730
 731 /* A width that can achieve a better legibility for GDB MI mode.  */
 732 #define GDB_MI_MSG_WIDTH  80
 733
 734 /* From progspace.c */
 735
 736 extern void initialize_progspace (void);
 737 extern void initialize_inferiors (void);
 738
 739 /* Special block numbers */
 740
 741 enum block_enum
 742 {
 743   GLOBAL_BLOCK = 0,
 744   STATIC_BLOCK = 1,
 745   FIRST_LOCAL_BLOCK = 2
 746 };
 747
 748 #include "utils.h"
 749
 750 #endif /* #ifndef DEFS_H */