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) 1986-2016 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 <limits.h>
  32
  33 /* The libdecnumber library, on which GDB depends, includes a header file
  34    called gstdint.h instead of relying directly on stdint.h.  GDB, on the
  35    other hand, includes stdint.h directly, relying on the fact that gnulib
  36    generates a copy if the system doesn't provide one or if it is missing
  37    some features.  Unfortunately, gstdint.h and stdint.h cannot be included
  38    at the same time, which may happen when we include a file from
  39    libdecnumber.
  40
  41    The following macro definition effectively prevents the inclusion of
  42    gstdint.h, as all the definitions it provides are guarded against
  43    the GCC_GENERATED_STDINT_H macro.  We already have gnulib/stdint.h
  44    included, so it's ok to blank out gstdint.h.  */
  45 #define GCC_GENERATED_STDINT_H 1
  46
  47 #include <unistd.h>
  48
  49 #include <fcntl.h>
  50
  51 #include "gdb_wchar.h"
  52
  53 #include "ui-file.h"
  54
  55 #include "host-defs.h"
  56
  57 /* Scope types enumerator.  List the types of scopes the compiler will
  58    accept.  */
  59
  60 enum compile_i_scope_types
  61   {
  62     COMPILE_I_INVALID_SCOPE,
  63
  64     /* A simple scope.  Wrap an expression into a simple scope that
  65        takes no arguments, returns no value, and uses the generic
  66        function name "_gdb_expr". */
  67
  68     COMPILE_I_SIMPLE_SCOPE,
  69
  70     /* Do not wrap the expression,
  71        it has to provide function "_gdb_expr" on its own.  */
  72     COMPILE_I_RAW_SCOPE,
  73
  74     /* A printable expression scope.  Wrap an expression into a scope
  75        suitable for the "compile print" command.  It uses the generic
  76        function name "_gdb_expr".  COMPILE_I_PRINT_ADDRESS_SCOPE variant
  77        is the usual one, taking address of the object.
  78        COMPILE_I_PRINT_VALUE_SCOPE is needed for arrays where the array
  79        name already specifies its address.  See get_out_value_type.  */
  80     COMPILE_I_PRINT_ADDRESS_SCOPE,
  81     COMPILE_I_PRINT_VALUE_SCOPE,
  82   };
  83
  84 /* Just in case they're not defined in stdio.h.  */
  85
  86 #ifndef SEEK_SET
  87 #define SEEK_SET 0
  88 #endif
  89 #ifndef SEEK_CUR
  90 #define SEEK_CUR 1
  91 #endif
  92
  93 /* The O_BINARY flag is defined in fcntl.h on some non-Posix platforms.
  94    It is used as an access modifier in calls to open(), where it acts
  95    similarly to the "b" character in fopen()'s MODE argument.  On Posix
  96    platforms it should be a no-op, so it is defined as 0 here.  This
  97    ensures that the symbol may be used freely elsewhere in gdb.  */
  98
  99 #ifndef O_BINARY
 100 #define O_BINARY 0
 101 #endif
 102
 103 #include "hashtab.h"
 104
 105 #ifndef min
 106 #define min(a, b) ((a) < (b) ? (a) : (b))
 107 #endif
 108 #ifndef max
 109 #define max(a, b) ((a) > (b) ? (a) : (b))
 110 #endif
 111
 112 /* * Enable dbx commands if set.  */
 113 extern int dbx_commands;
 114
 115 /* * System root path, used to find libraries etc.  */
 116 extern char *gdb_sysroot;
 117
 118 /* * GDB datadir, used to store data files.  */
 119 extern char *gdb_datadir;
 120
 121 /* * If non-NULL, the possibly relocated path to python's "lib" directory
 122    specified with --with-python.  */
 123 extern char *python_libdir;
 124
 125 /* * Search path for separate debug files.  */
 126 extern char *debug_file_directory;
 127
 128 /* GDB has two methods for handling SIGINT.  When immediate_quit is
 129    nonzero, a SIGINT results in an immediate longjmp out of the signal
 130    handler.  Otherwise, SIGINT simply sets a flag; code that might
 131    take a long time, and which ought to be interruptible, checks this
 132    flag using the QUIT macro.
 133
 134    In addition to setting a flag, the SIGINT handler also marks a
 135    select/poll-able file descriptor as read-ready.  That is used by
 136    interruptible_select in order to support interrupting blocking I/O
 137    in a race-free manner.
 138
 139    These functions use the extension_language_ops API to allow extension
 140    language(s) and GDB SIGINT handling to coexist seamlessly.  */
 141
 142 /* * Evaluate to non-zero if the quit flag is set, zero otherwise.  This
 143    will clear the quit flag as a side effect.  */
 144 extern int check_quit_flag (void);
 145 /* * Set the quit flag.  */
 146 extern void set_quit_flag (void);
 147
 148 /* The current quit handler (and its type).  This is called from the
 149    QUIT macro.  See default_quit_handler below for default behavior.
 150    Parts of GDB temporarily override this to e.g., completely suppress
 151    Ctrl-C because it would not be safe to throw.  E.g., normally, you
 152    wouldn't want to quit between a RSP command and its response, as
 153    that would break the communication with the target, but you may
 154    still want to intercept the Ctrl-C and offer to disconnect if the
 155    user presses Ctrl-C multiple times while the target is stuck
 156    waiting for the wedged remote stub.  */
 157 typedef void (quit_handler_ftype) (void);
 158 extern quit_handler_ftype *quit_handler;
 159
 160 /* Override the current quit handler.  Sets NEW_QUIT_HANDLER as
 161    current quit handler, and installs a cleanup that when run restores
 162    the previous quit handler.  */
 163 struct cleanup *
 164   make_cleanup_override_quit_handler (quit_handler_ftype *new_quit_handler);
 165
 166 /* The default quit handler.  Checks whether Ctrl-C was pressed, and
 167    if so:
 168
 169      - If GDB owns the terminal, throws a quit exception.
 170
 171      - If GDB does not own the terminal, forwards the Ctrl-C to the
 172        target.
 173 */
 174 extern void default_quit_handler (void);
 175
 176 /* Flag that function quit should call quit_force.  */
 177 extern volatile int sync_quit_force_run;
 178
 179 extern int immediate_quit;
 180
 181 extern void quit (void);
 182
 183 /* Helper for the QUIT macro.  */
 184
 185 extern void maybe_quit (void);
 186
 187 /* Check whether a Ctrl-C was typed, and if so, call the current quit
 188    handler.  */
 189 #define QUIT maybe_quit ()
 190
 191 /* Set the serial event associated with the quit flag.  */
 192 extern void quit_serial_event_set (void);
 193
 194 /* Clear the serial event associated with the quit flag.  */
 195 extern void quit_serial_event_clear (void);
 196
 197 /* * Languages represented in the symbol table and elsewhere.
 198    This should probably be in language.h, but since enum's can't
 199    be forward declared to satisfy opaque references before their
 200    actual definition, needs to be here.  */
 201
 202 enum language
 203   {
 204     language_unknown,           /* Language not known */
 205     language_auto,              /* Placeholder for automatic setting */
 206     language_c,                 /* C */
 207     language_cplus,             /* C++ */
 208     language_d,                 /* D */
 209     language_go,                /* Go */
 210     language_objc,              /* Objective-C */
 211     language_java,              /* Java */
 212     language_fortran,           /* Fortran */
 213     language_m2,                /* Modula-2 */
 214     language_asm,               /* Assembly language */
 215     language_pascal,            /* Pascal */
 216     language_ada,               /* Ada */
 217     language_opencl,            /* OpenCL */
 218     language_minimal,           /* All other languages, minimal support only */
 219     nr_languages
 220   };
 221
 222 /* The number of bits needed to represent all languages, with enough
 223    padding to allow for reasonable growth.  */
 224 #define LANGUAGE_BITS 5
 225 gdb_static_assert (nr_languages <= (1 << LANGUAGE_BITS));
 226
 227 enum precision_type
 228   {
 229     single_precision,
 230     double_precision,
 231     unspecified_precision
 232   };
 233
 234 /* * A generic, not quite boolean, enumeration.  This is used for
 235    set/show commands in which the options are on/off/automatic.  */
 236 enum auto_boolean
 237 {
 238   AUTO_BOOLEAN_TRUE,
 239   AUTO_BOOLEAN_FALSE,
 240   AUTO_BOOLEAN_AUTO
 241 };
 242
 243 /* * Potential ways that a function can return a value of a given
 244    type.  */
 245
 246 enum return_value_convention
 247 {
 248   /* * Where the return value has been squeezed into one or more
 249      registers.  */
 250   RETURN_VALUE_REGISTER_CONVENTION,
 251   /* * Commonly known as the "struct return convention".  The caller
 252      passes an additional hidden first parameter to the caller.  That
 253      parameter contains the address at which the value being returned
 254      should be stored.  While typically, and historically, used for
 255      large structs, this is convention is applied to values of many
 256      different types.  */
 257   RETURN_VALUE_STRUCT_CONVENTION,
 258   /* * Like the "struct return convention" above, but where the ABI
 259      guarantees that the called function stores the address at which
 260      the value being returned is stored in a well-defined location,
 261      such as a register or memory slot in the stack frame.  Don't use
 262      this if the ABI doesn't explicitly guarantees this.  */
 263   RETURN_VALUE_ABI_RETURNS_ADDRESS,
 264   /* * Like the "struct return convention" above, but where the ABI
 265      guarantees that the address at which the value being returned is
 266      stored will be available in a well-defined location, such as a
 267      register or memory slot in the stack frame.  Don't use this if
 268      the ABI doesn't explicitly guarantees this.  */
 269   RETURN_VALUE_ABI_PRESERVES_ADDRESS,
 270 };
 271
 272 /* Needed for various prototypes */
 273
 274 struct symtab;
 275 struct breakpoint;
 276 struct frame_info;
 277 struct gdbarch;
 278 struct value;
 279
 280 /* From main.c.  */
 281
 282 /* This really belong in utils.c (path-utils.c?), but it references some
 283    globals that are currently only available to main.c.  */
 284 extern char *relocate_gdb_directory (const char *initial, int flag);
 285
 286 \f
 287 /* Annotation stuff.  */
 288
 289 extern int annotation_level;    /* in stack.c */
 290 \f
 291
 292 /* From regex.c or libc.  BSD 4.4 declares this with the argument type as
 293    "const char *" in unistd.h, so we can't declare the argument
 294    as "char *".  */
 295
 296 EXTERN_C char *re_comp (const char *);
 297
 298 /* From symfile.c */
 299
 300 extern void symbol_file_command (char *, int);
 301
 302 /* * Remote targets may wish to use this as their load function.  */
 303 extern void generic_load (const char *name, int from_tty);
 304
 305 /* * Report on STREAM the performance of memory transfer operation,
 306    such as 'load'.
 307    @param DATA_COUNT is the number of bytes transferred.
 308    @param WRITE_COUNT is the number of separate write operations, or 0,
 309    if that information is not available.
 310    @param START_TIME is the time at which an operation was started.
 311    @param END_TIME is the time at which an operation ended.  */
 312 struct timeval;
 313 extern void print_transfer_performance (struct ui_file *stream,
 314                                         unsigned long data_count,
 315                                         unsigned long write_count,
 316                                         const struct timeval *start_time,
 317                                         const struct timeval *end_time);
 318
 319 /* From top.c */
 320
 321 typedef void initialize_file_ftype (void);
 322
 323 extern char *gdb_readline_wrapper (const char *);
 324
 325 extern char *command_line_input (const char *, int, char *);
 326
 327 extern void print_prompt (void);
 328
 329 extern int input_from_terminal_p (void);
 330
 331 extern int info_verbose;
 332
 333 /* From printcmd.c */
 334
 335 extern void set_next_address (struct gdbarch *, CORE_ADDR);
 336
 337 extern int print_address_symbolic (struct gdbarch *, CORE_ADDR,
 338                                    struct ui_file *, int, char *);
 339
 340 extern int build_address_symbolic (struct gdbarch *,
 341                                    CORE_ADDR addr,
 342                                    int do_demangle,
 343                                    char **name,
 344                                    int *offset,
 345                                    char **filename,
 346                                    int *line,
 347                                    int *unmapped);
 348
 349 extern void print_address (struct gdbarch *, CORE_ADDR, struct ui_file *);
 350 extern const char *pc_prefix (CORE_ADDR);
 351
 352 /* From source.c */
 353
 354 /* See openp function definition for their description.  */
 355 #define OPF_TRY_CWD_FIRST     0x01
 356 #define OPF_SEARCH_IN_PATH    0x02
 357 #define OPF_RETURN_REALPATH   0x04
 358
 359 extern int openp (const char *, int, const char *, int, char **);
 360
 361 extern int source_full_path_of (const char *, char **);
 362
 363 extern void mod_path (char *, char **);
 364
 365 extern void add_path (char *, char **, int);
 366
 367 extern void directory_switch (char *, int);
 368
 369 extern char *source_path;
 370
 371 extern void init_source_path (void);
 372
 373 /* From exec.c */
 374
 375 /* * Process memory area starting at ADDR with length SIZE.  Area is
 376    readable iff READ is non-zero, writable if WRITE is non-zero,
 377    executable if EXEC is non-zero.  Area is possibly changed against
 378    its original file based copy if MODIFIED is non-zero.  DATA is
 379    passed without changes from a caller.  */
 380
 381 typedef int (*find_memory_region_ftype) (CORE_ADDR addr, unsigned long size,
 382                                          int read, int write, int exec,
 383                                          int modified, void *data);
 384
 385 /* * Possible lvalue types.  Like enum language, this should be in
 386    value.h, but needs to be here for the same reason.  */
 387
 388 enum lval_type
 389   {
 390     /* * Not an lval.  */
 391     not_lval,
 392     /* * In memory.  */
 393     lval_memory,
 394     /* * In a register.  Registers are relative to a frame.  */
 395     lval_register,
 396     /* * In a gdb internal variable.  */
 397     lval_internalvar,
 398     /* * Value encapsulates a callable defined in an extension language.  */
 399     lval_xcallable,
 400     /* * Part of a gdb internal variable (structure field).  */
 401     lval_internalvar_component,
 402     /* * Value's bits are fetched and stored using functions provided
 403        by its creator.  */
 404     lval_computed
 405   };
 406
 407 /* * Control types for commands.  */
 408
 409 enum misc_command_type
 410   {
 411     ok_command,
 412     end_command,
 413     else_command,
 414     nop_command
 415   };
 416
 417 enum command_control_type
 418   {
 419     simple_control,
 420     break_control,
 421     continue_control,
 422     while_control,
 423     if_control,
 424     commands_control,
 425     python_control,
 426     compile_control,
 427     guile_control,
 428     while_stepping_control,
 429     invalid_control
 430   };
 431
 432 /* * Structure for saved commands lines (for breakpoints, defined
 433    commands, etc).  */
 434
 435 struct command_line
 436   {
 437     struct command_line *next;
 438     char *line;
 439     enum command_control_type control_type;
 440     union
 441       {
 442         struct
 443           {
 444             enum compile_i_scope_types scope;
 445             void *scope_data;
 446           }
 447         compile;
 448       }
 449     control_u;
 450     /* * The number of elements in body_list.  */
 451     int body_count;
 452     /* * For composite commands, the nested lists of commands.  For
 453        example, for "if" command this will contain the then branch and
 454        the else branch, if that is available.  */
 455     struct command_line **body_list;
 456   };
 457
 458 extern struct command_line *read_command_lines (char *, int, int,
 459                                                 void (*)(char *, void *),
 460                                                 void *);
 461 extern struct command_line *read_command_lines_1 (char * (*) (void), int,
 462                                                   void (*)(char *, void *),
 463                                                   void *);
 464
 465 extern void free_command_lines (struct command_line **);
 466
 467 /* * Parameters of the "info proc" command.  */
 468
 469 enum info_proc_what
 470   {
 471     /* * Display the default cmdline, cwd and exe outputs.  */
 472     IP_MINIMAL,
 473
 474     /* * Display `info proc mappings'.  */
 475     IP_MAPPINGS,
 476
 477     /* * Display `info proc status'.  */
 478     IP_STATUS,
 479
 480     /* * Display `info proc stat'.  */
 481     IP_STAT,
 482
 483     /* * Display `info proc cmdline'.  */
 484     IP_CMDLINE,
 485
 486     /* * Display `info proc exe'.  */
 487     IP_EXE,
 488
 489     /* * Display `info proc cwd'.  */
 490     IP_CWD,
 491
 492     /* * Display all of the above.  */
 493     IP_ALL
 494   };
 495
 496 /* * String containing the current directory (what getwd would return).  */
 497
 498 extern char *current_directory;
 499
 500 /* * Default radixes for input and output.  Only some values supported.  */
 501 extern unsigned input_radix;
 502 extern unsigned output_radix;
 503
 504 /* * Possibilities for prettyformat parameters to routines which print
 505    things.  Like enum language, this should be in value.h, but needs
 506    to be here for the same reason.  FIXME:  If we can eliminate this
 507    as an arg to LA_VAL_PRINT, then we can probably move it back to
 508    value.h.  */
 509
 510 enum val_prettyformat
 511   {
 512     Val_no_prettyformat = 0,
 513     Val_prettyformat,
 514     /* * Use the default setting which the user has specified.  */
 515     Val_prettyformat_default
 516   };
 517
 518 /* * Optional native machine support.  Non-native (and possibly pure
 519    multi-arch) targets do not need a "nm.h" file.  This will be a
 520    symlink to one of the nm-*.h files, built by the `configure'
 521    script.  */
 522
 523 #ifdef GDB_NM_FILE
 524 #include "nm.h"
 525 #endif
 526
 527 /* Assume that fopen accepts the letter "b" in the mode string.
 528    It is demanded by ISO C9X, and should be supported on all
 529    platforms that claim to have a standard-conforming C library.  On
 530    true POSIX systems it will be ignored and have no effect.  There
 531    may still be systems without a standard-conforming C library where
 532    an ISO C9X compiler (GCC) is available.  Known examples are SunOS
 533    4.x and 4.3BSD.  This assumption means these systems are no longer
 534    supported.  */
 535 #ifndef FOPEN_RB
 536 # include "fopen-bin.h"
 537 #endif
 538
 539 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
 540    FIXME: Assumes 2's complement arithmetic.  */
 541
 542 #if !defined (UINT_MAX)
 543 #define UINT_MAX ((unsigned int)(~0))       /* 0xFFFFFFFF for 32-bits */
 544 #endif
 545
 546 #if !defined (INT_MAX)
 547 #define INT_MAX ((int)(UINT_MAX >> 1))      /* 0x7FFFFFFF for 32-bits */
 548 #endif
 549
 550 #if !defined (INT_MIN)
 551 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
 552 #endif
 553
 554 #if !defined (ULONG_MAX)
 555 #define ULONG_MAX ((unsigned long)(~0L))    /* 0xFFFFFFFF for 32-bits */
 556 #endif
 557
 558 #if !defined (LONG_MAX)
 559 #define LONG_MAX ((long)(ULONG_MAX >> 1))   /* 0x7FFFFFFF for 32-bits */
 560 #endif
 561
 562 #if !defined (ULONGEST_MAX)
 563 #define ULONGEST_MAX (~(ULONGEST)0)        /* 0xFFFFFFFFFFFFFFFF for 64-bits */
 564 #endif
 565
 566 #if !defined (LONGEST_MAX)                 /* 0x7FFFFFFFFFFFFFFF for 64-bits */
 567 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
 568 #endif
 569
 570 /* * Convert a LONGEST to an int.  This is used in contexts (e.g. number of
 571    arguments to a function, number in a value history, register number, etc.)
 572    where the value must not be larger than can fit in an int.  */
 573
 574 extern int longest_to_int (LONGEST);
 575
 576 /* * List of known OS ABIs.  If you change this, make sure to update the
 577    table in osabi.c.  */
 578 enum gdb_osabi
 579 {
 580   GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info.  */
 581
 582   GDB_OSABI_UNKNOWN = 0,        /* keep this zero */
 583
 584   GDB_OSABI_SVR4,
 585   GDB_OSABI_HURD,
 586   GDB_OSABI_SOLARIS,
 587   GDB_OSABI_LINUX,
 588   GDB_OSABI_FREEBSD_AOUT,
 589   GDB_OSABI_FREEBSD_ELF,
 590   GDB_OSABI_NETBSD_AOUT,
 591   GDB_OSABI_NETBSD_ELF,
 592   GDB_OSABI_OPENBSD_ELF,
 593   GDB_OSABI_WINCE,
 594   GDB_OSABI_GO32,
 595   GDB_OSABI_IRIX,
 596   GDB_OSABI_HPUX_ELF,
 597   GDB_OSABI_HPUX_SOM,
 598   GDB_OSABI_QNXNTO,
 599   GDB_OSABI_CYGWIN,
 600   GDB_OSABI_AIX,
 601   GDB_OSABI_DICOS,
 602   GDB_OSABI_DARWIN,
 603   GDB_OSABI_SYMBIAN,
 604   GDB_OSABI_OPENVMS,
 605   GDB_OSABI_LYNXOS178,
 606   GDB_OSABI_NEWLIB,
 607   GDB_OSABI_SDE,
 608
 609   GDB_OSABI_INVALID             /* keep this last */
 610 };
 611
 612 /* Global functions from other, non-gdb GNU thingies.
 613    Libiberty thingies are no longer declared here.  We include libiberty.h
 614    above, instead.  */
 615
 616 /* From other system libraries */
 617
 618 #ifndef atof
 619 extern double atof (const char *);      /* X3.159-1989  4.10.1.1 */
 620 #endif
 621
 622 /* Dynamic target-system-dependent parameters for GDB.  */
 623 #include "gdbarch.h"
 624
 625 /* * Maximum size of a register.  Something small, but large enough for
 626    all known ISAs.  If it turns out to be too small, make it bigger.  */
 627
 628 enum { MAX_REGISTER_SIZE = 64 };
 629
 630 /* In findvar.c.  */
 631
 632 extern LONGEST extract_signed_integer (const gdb_byte *, int,
 633                                        enum bfd_endian);
 634
 635 extern ULONGEST extract_unsigned_integer (const gdb_byte *, int,
 636                                           enum bfd_endian);
 637
 638 extern int extract_long_unsigned_integer (const gdb_byte *, int,
 639                                           enum bfd_endian, LONGEST *);
 640
 641 extern CORE_ADDR extract_typed_address (const gdb_byte *buf,
 642                                         struct type *type);
 643
 644 extern void store_signed_integer (gdb_byte *, int,
 645                                   enum bfd_endian, LONGEST);
 646
 647 extern void store_unsigned_integer (gdb_byte *, int,
 648                                     enum bfd_endian, ULONGEST);
 649
 650 extern void store_typed_address (gdb_byte *buf, struct type *type,
 651                                  CORE_ADDR addr);
 652
 653 \f
 654 /* From valops.c */
 655
 656 extern int watchdog;
 657
 658 /* Hooks for alternate command interfaces.  */
 659
 660 /* * The name of the interpreter if specified on the command line.  */
 661 extern char *interpreter_p;
 662
 663 struct target_waitstatus;
 664 struct cmd_list_element;
 665
 666 extern void (*deprecated_pre_add_symbol_hook) (const char *);
 667 extern void (*deprecated_post_add_symbol_hook) (void);
 668 extern void (*selected_frame_level_changed_hook) (int);
 669 extern int (*deprecated_ui_loop_hook) (int signo);
 670 extern void (*deprecated_show_load_progress) (const char *section,
 671                                               unsigned long section_sent,
 672                                               unsigned long section_size,
 673                                               unsigned long total_sent,
 674                                               unsigned long total_size);
 675 extern void (*deprecated_print_frame_info_listing_hook) (struct symtab * s,
 676                                                          int line,
 677                                                          int stopline,
 678                                                          int noerror);
 679 extern int (*deprecated_query_hook) (const char *, va_list)
 680      ATTRIBUTE_FPTR_PRINTF(1,0);
 681 extern void (*deprecated_warning_hook) (const char *, va_list)
 682      ATTRIBUTE_FPTR_PRINTF(1,0);
 683 extern void (*deprecated_interactive_hook) (void);
 684 extern void (*deprecated_readline_begin_hook) (char *, ...)
 685      ATTRIBUTE_FPTR_PRINTF_1;
 686 extern char *(*deprecated_readline_hook) (const char *);
 687 extern void (*deprecated_readline_end_hook) (void);
 688 extern void (*deprecated_context_hook) (int);
 689 extern ptid_t (*deprecated_target_wait_hook) (ptid_t ptid,
 690                                               struct target_waitstatus *status,
 691                                               int options);
 692
 693 extern void (*deprecated_attach_hook) (void);
 694 extern void (*deprecated_detach_hook) (void);
 695 extern void (*deprecated_call_command_hook) (struct cmd_list_element * c,
 696                                              char *cmd, int from_tty);
 697
 698 extern int (*deprecated_ui_load_progress_hook) (const char *section,
 699                                                 unsigned long num);
 700
 701 /* If this definition isn't overridden by the header files, assume
 702    that isatty and fileno exist on this system.  */
 703 #ifndef ISATTY
 704 #define ISATTY(FP)      (isatty (fileno (FP)))
 705 #endif
 706
 707 /* * A width that can achieve a better legibility for GDB MI mode.  */
 708 #define GDB_MI_MSG_WIDTH  80
 709
 710 /* From progspace.c */
 711
 712 extern void initialize_progspace (void);
 713 extern void initialize_inferiors (void);
 714
 715 /* * Special block numbers */
 716
 717 enum block_enum
 718 {
 719   GLOBAL_BLOCK = 0,
 720   STATIC_BLOCK = 1,
 721   FIRST_LOCAL_BLOCK = 2
 722 };
 723
 724 #include "utils.h"
 725
 726 #endif /* #ifndef DEFS_H */