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 #include "common/enum-flags.h"
  57
  58 /* Scope types enumerator.  List the types of scopes the compiler will
  59    accept.  */
  60
  61 enum compile_i_scope_types
  62   {
  63     COMPILE_I_INVALID_SCOPE,
  64
  65     /* A simple scope.  Wrap an expression into a simple scope that
  66        takes no arguments, returns no value, and uses the generic
  67        function name "_gdb_expr". */
  68
  69     COMPILE_I_SIMPLE_SCOPE,
  70
  71     /* Do not wrap the expression,
  72        it has to provide function "_gdb_expr" on its own.  */
  73     COMPILE_I_RAW_SCOPE,
  74
  75     /* A printable expression scope.  Wrap an expression into a scope
  76        suitable for the "compile print" command.  It uses the generic
  77        function name "_gdb_expr".  COMPILE_I_PRINT_ADDRESS_SCOPE variant
  78        is the usual one, taking address of the object.
  79        COMPILE_I_PRINT_VALUE_SCOPE is needed for arrays where the array
  80        name already specifies its address.  See get_out_value_type.  */
  81     COMPILE_I_PRINT_ADDRESS_SCOPE,
  82     COMPILE_I_PRINT_VALUE_SCOPE,
  83   };
  84
  85 /* Just in case they're not defined in stdio.h.  */
  86
  87 #ifndef SEEK_SET
  88 #define SEEK_SET 0
  89 #endif
  90 #ifndef SEEK_CUR
  91 #define SEEK_CUR 1
  92 #endif
  93
  94 /* The O_BINARY flag is defined in fcntl.h on some non-Posix platforms.
  95    It is used as an access modifier in calls to open(), where it acts
  96    similarly to the "b" character in fopen()'s MODE argument.  On Posix
  97    platforms it should be a no-op, so it is defined as 0 here.  This
  98    ensures that the symbol may be used freely elsewhere in gdb.  */
  99
 100 #ifndef O_BINARY
 101 #define O_BINARY 0
 102 #endif
 103
 104 #include "hashtab.h"
 105
 106 /* * Enable dbx commands if set.  */
 107 extern int dbx_commands;
 108
 109 /* * System root path, used to find libraries etc.  */
 110 extern char *gdb_sysroot;
 111
 112 /* * GDB datadir, used to store data files.  */
 113 extern char *gdb_datadir;
 114
 115 /* * If non-NULL, the possibly relocated path to python's "lib" directory
 116    specified with --with-python.  */
 117 extern char *python_libdir;
 118
 119 /* * Search path for separate debug files.  */
 120 extern char *debug_file_directory;
 121
 122 /* GDB's SIGINT handler basically sets a flag; code that might take a
 123    long time before it gets back to the event loop, and which ought to
 124    be interruptible, checks this flag using the QUIT macro, which, if
 125    GDB has the terminal, throws a quit exception.
 126
 127    In addition to setting a flag, the SIGINT handler also marks a
 128    select/poll-able file descriptor as read-ready.  That is used by
 129    interruptible_select in order to support interrupting blocking I/O
 130    in a race-free manner.
 131
 132    These functions use the extension_language_ops API to allow extension
 133    language(s) and GDB SIGINT handling to coexist seamlessly.  */
 134
 135 /* * Evaluate to non-zero if the quit flag is set, zero otherwise.  This
 136    will clear the quit flag as a side effect.  */
 137 extern int check_quit_flag (void);
 138 /* * Set the quit flag.  */
 139 extern void set_quit_flag (void);
 140
 141 /* The current quit handler (and its type).  This is called from the
 142    QUIT macro.  See default_quit_handler below for default behavior.
 143    Parts of GDB temporarily override this to e.g., completely suppress
 144    Ctrl-C because it would not be safe to throw.  E.g., normally, you
 145    wouldn't want to quit between a RSP command and its response, as
 146    that would break the communication with the target, but you may
 147    still want to intercept the Ctrl-C and offer to disconnect if the
 148    user presses Ctrl-C multiple times while the target is stuck
 149    waiting for the wedged remote stub.  */
 150 typedef void (quit_handler_ftype) (void);
 151 extern quit_handler_ftype *quit_handler;
 152
 153 /* Override the current quit handler.  Sets NEW_QUIT_HANDLER as
 154    current quit handler, and installs a cleanup that when run restores
 155    the previous quit handler.  */
 156 struct cleanup *
 157   make_cleanup_override_quit_handler (quit_handler_ftype *new_quit_handler);
 158
 159 /* The default quit handler.  Checks whether Ctrl-C was pressed, and
 160    if so:
 161
 162      - If GDB owns the terminal, throws a quit exception.
 163
 164      - If GDB does not own the terminal, forwards the Ctrl-C to the
 165        target.
 166 */
 167 extern void default_quit_handler (void);
 168
 169 /* Flag that function quit should call quit_force.  */
 170 extern volatile int sync_quit_force_run;
 171
 172 extern void quit (void);
 173
 174 /* Helper for the QUIT macro.  */
 175
 176 extern void maybe_quit (void);
 177
 178 /* Check whether a Ctrl-C was typed, and if so, call the current quit
 179    handler.  */
 180 #define QUIT maybe_quit ()
 181
 182 /* Set the serial event associated with the quit flag.  */
 183 extern void quit_serial_event_set (void);
 184
 185 /* Clear the serial event associated with the quit flag.  */
 186 extern void quit_serial_event_clear (void);
 187
 188 /* * Languages represented in the symbol table and elsewhere.
 189    This should probably be in language.h, but since enum's can't
 190    be forward declared to satisfy opaque references before their
 191    actual definition, needs to be here.
 192
 193    The constants here are in priority order.  In particular,
 194    demangling is attempted according to this order.
 195
 196    Note that there's ambiguity between the mangling schemes of some of
 197    these languages, so some symbols could be successfully demangled by
 198    several languages.  For that reason, the constants here are sorted
 199    in the order we'll attempt demangling them.  For example: Rust uses
 200    C++ mangling, so must come after C++; Ada must come last (see
 201    ada_sniff_from_mangled_name).  */
 202
 203 enum language
 204   {
 205     language_unknown,           /* Language not known */
 206     language_auto,              /* Placeholder for automatic setting */
 207     language_c,                 /* C */
 208     language_objc,              /* Objective-C */
 209     language_cplus,             /* C++ */
 210     language_d,                 /* D */
 211     language_go,                /* Go */
 212     language_fortran,           /* Fortran */
 213     language_m2,                /* Modula-2 */
 214     language_asm,               /* Assembly language */
 215     language_pascal,            /* Pascal */
 216     language_opencl,            /* OpenCL */
 217     language_rust,              /* Rust */
 218     language_minimal,           /* All other languages, minimal support only */
 219     language_ada,               /* Ada */
 220     nr_languages
 221   };
 222
 223 /* The number of bits needed to represent all languages, with enough
 224    padding to allow for reasonable growth.  */
 225 #define LANGUAGE_BITS 5
 226 gdb_static_assert (nr_languages <= (1 << LANGUAGE_BITS));
 227
 228 enum precision_type
 229   {
 230     single_precision,
 231     double_precision,
 232     unspecified_precision
 233   };
 234
 235 /* * A generic, not quite boolean, enumeration.  This is used for
 236    set/show commands in which the options are on/off/automatic.  */
 237 enum auto_boolean
 238 {
 239   AUTO_BOOLEAN_TRUE,
 240   AUTO_BOOLEAN_FALSE,
 241   AUTO_BOOLEAN_AUTO
 242 };
 243
 244 /* * Potential ways that a function can return a value of a given
 245    type.  */
 246
 247 enum return_value_convention
 248 {
 249   /* * Where the return value has been squeezed into one or more
 250      registers.  */
 251   RETURN_VALUE_REGISTER_CONVENTION,
 252   /* * Commonly known as the "struct return convention".  The caller
 253      passes an additional hidden first parameter to the caller.  That
 254      parameter contains the address at which the value being returned
 255      should be stored.  While typically, and historically, used for
 256      large structs, this is convention is applied to values of many
 257      different types.  */
 258   RETURN_VALUE_STRUCT_CONVENTION,
 259   /* * Like the "struct return convention" above, but where the ABI
 260      guarantees that the called function stores the address at which
 261      the value being returned is stored in a well-defined location,
 262      such as a register or memory slot in the stack frame.  Don't use
 263      this if the ABI doesn't explicitly guarantees this.  */
 264   RETURN_VALUE_ABI_RETURNS_ADDRESS,
 265   /* * Like the "struct return convention" above, but where the ABI
 266      guarantees that the address at which the value being returned is
 267      stored will be available in a well-defined location, such as a
 268      register or memory slot in the stack frame.  Don't use this if
 269      the ABI doesn't explicitly guarantees this.  */
 270   RETURN_VALUE_ABI_PRESERVES_ADDRESS,
 271 };
 272
 273 /* Needed for various prototypes */
 274
 275 struct symtab;
 276 struct breakpoint;
 277 struct frame_info;
 278 struct gdbarch;
 279 struct value;
 280
 281 /* From main.c.  */
 282
 283 /* This really belong in utils.c (path-utils.c?), but it references some
 284    globals that are currently only available to main.c.  */
 285 extern char *relocate_gdb_directory (const char *initial, int flag);
 286
 287 \f
 288 /* Annotation stuff.  */
 289
 290 extern int annotation_level;    /* in stack.c */
 291 \f
 292
 293 /* From regex.c or libc.  BSD 4.4 declares this with the argument type as
 294    "const char *" in unistd.h, so we can't declare the argument
 295    as "char *".  */
 296
 297 EXTERN_C char *re_comp (const char *);
 298
 299 /* From symfile.c */
 300
 301 extern void symbol_file_command (char *, int);
 302
 303 /* * Remote targets may wish to use this as their load function.  */
 304 extern void generic_load (const char *name, int from_tty);
 305
 306 /* From top.c */
 307
 308 typedef void initialize_file_ftype (void);
 309
 310 extern char *gdb_readline_wrapper (const char *);
 311
 312 extern char *command_line_input (const char *, int, char *);
 313
 314 extern void print_prompt (void);
 315
 316 struct ui;
 317
 318 extern int input_interactive_p (struct ui *);
 319
 320 extern int info_verbose;
 321
 322 /* From printcmd.c */
 323
 324 extern void set_next_address (struct gdbarch *, CORE_ADDR);
 325
 326 extern int print_address_symbolic (struct gdbarch *, CORE_ADDR,
 327                                    struct ui_file *, int, char *);
 328
 329 extern int build_address_symbolic (struct gdbarch *,
 330                                    CORE_ADDR addr,
 331                                    int do_demangle,
 332                                    char **name,
 333                                    int *offset,
 334                                    char **filename,
 335                                    int *line,
 336                                    int *unmapped);
 337
 338 extern void print_address (struct gdbarch *, CORE_ADDR, struct ui_file *);
 339 extern const char *pc_prefix (CORE_ADDR);
 340
 341 /* From source.c */
 342
 343 /* See openp function definition for their description.  */
 344 #define OPF_TRY_CWD_FIRST     0x01
 345 #define OPF_SEARCH_IN_PATH    0x02
 346 #define OPF_RETURN_REALPATH   0x04
 347
 348 extern int openp (const char *, int, const char *, int, char **);
 349
 350 extern int source_full_path_of (const char *, char **);
 351
 352 extern void mod_path (char *, char **);
 353
 354 extern void add_path (char *, char **, int);
 355
 356 extern void directory_switch (char *, int);
 357
 358 extern char *source_path;
 359
 360 extern void init_source_path (void);
 361
 362 /* From exec.c */
 363
 364 /* * Process memory area starting at ADDR with length SIZE.  Area is
 365    readable iff READ is non-zero, writable if WRITE is non-zero,
 366    executable if EXEC is non-zero.  Area is possibly changed against
 367    its original file based copy if MODIFIED is non-zero.  DATA is
 368    passed without changes from a caller.  */
 369
 370 typedef int (*find_memory_region_ftype) (CORE_ADDR addr, unsigned long size,
 371                                          int read, int write, int exec,
 372                                          int modified, void *data);
 373
 374 /* * Possible lvalue types.  Like enum language, this should be in
 375    value.h, but needs to be here for the same reason.  */
 376
 377 enum lval_type
 378   {
 379     /* * Not an lval.  */
 380     not_lval,
 381     /* * In memory.  */
 382     lval_memory,
 383     /* * In a register.  Registers are relative to a frame.  */
 384     lval_register,
 385     /* * In a gdb internal variable.  */
 386     lval_internalvar,
 387     /* * Value encapsulates a callable defined in an extension language.  */
 388     lval_xcallable,
 389     /* * Part of a gdb internal variable (structure field).  */
 390     lval_internalvar_component,
 391     /* * Value's bits are fetched and stored using functions provided
 392        by its creator.  */
 393     lval_computed
 394   };
 395
 396 /* * Control types for commands.  */
 397
 398 enum misc_command_type
 399   {
 400     ok_command,
 401     end_command,
 402     else_command,
 403     nop_command
 404   };
 405
 406 enum command_control_type
 407   {
 408     simple_control,
 409     break_control,
 410     continue_control,
 411     while_control,
 412     if_control,
 413     commands_control,
 414     python_control,
 415     compile_control,
 416     guile_control,
 417     while_stepping_control,
 418     invalid_control
 419   };
 420
 421 /* * Structure for saved commands lines (for breakpoints, defined
 422    commands, etc).  */
 423
 424 struct command_line
 425   {
 426     struct command_line *next;
 427     char *line;
 428     enum command_control_type control_type;
 429     union
 430       {
 431         struct
 432           {
 433             enum compile_i_scope_types scope;
 434             void *scope_data;
 435           }
 436         compile;
 437       }
 438     control_u;
 439     /* * The number of elements in body_list.  */
 440     int body_count;
 441     /* * For composite commands, the nested lists of commands.  For
 442        example, for "if" command this will contain the then branch and
 443        the else branch, if that is available.  */
 444     struct command_line **body_list;
 445   };
 446
 447 extern struct command_line *read_command_lines (char *, int, int,
 448                                                 void (*)(char *, void *),
 449                                                 void *);
 450 extern struct command_line *read_command_lines_1 (char * (*) (void), int,
 451                                                   void (*)(char *, void *),
 452                                                   void *);
 453
 454 extern void free_command_lines (struct command_line **);
 455
 456 /* * Parameters of the "info proc" command.  */
 457
 458 enum info_proc_what
 459   {
 460     /* * Display the default cmdline, cwd and exe outputs.  */
 461     IP_MINIMAL,
 462
 463     /* * Display `info proc mappings'.  */
 464     IP_MAPPINGS,
 465
 466     /* * Display `info proc status'.  */
 467     IP_STATUS,
 468
 469     /* * Display `info proc stat'.  */
 470     IP_STAT,
 471
 472     /* * Display `info proc cmdline'.  */
 473     IP_CMDLINE,
 474
 475     /* * Display `info proc exe'.  */
 476     IP_EXE,
 477
 478     /* * Display `info proc cwd'.  */
 479     IP_CWD,
 480
 481     /* * Display all of the above.  */
 482     IP_ALL
 483   };
 484
 485 /* * String containing the current directory (what getwd would return).  */
 486
 487 extern char *current_directory;
 488
 489 /* * Default radixes for input and output.  Only some values supported.  */
 490 extern unsigned input_radix;
 491 extern unsigned output_radix;
 492
 493 /* * Possibilities for prettyformat parameters to routines which print
 494    things.  Like enum language, this should be in value.h, but needs
 495    to be here for the same reason.  FIXME:  If we can eliminate this
 496    as an arg to LA_VAL_PRINT, then we can probably move it back to
 497    value.h.  */
 498
 499 enum val_prettyformat
 500   {
 501     Val_no_prettyformat = 0,
 502     Val_prettyformat,
 503     /* * Use the default setting which the user has specified.  */
 504     Val_prettyformat_default
 505   };
 506
 507 /* * Optional native machine support.  Non-native (and possibly pure
 508    multi-arch) targets do not need a "nm.h" file.  This will be a
 509    symlink to one of the nm-*.h files, built by the `configure'
 510    script.  */
 511
 512 #ifdef GDB_NM_FILE
 513 #include "nm.h"
 514 #endif
 515
 516 /* Assume that fopen accepts the letter "b" in the mode string.
 517    It is demanded by ISO C9X, and should be supported on all
 518    platforms that claim to have a standard-conforming C library.  On
 519    true POSIX systems it will be ignored and have no effect.  There
 520    may still be systems without a standard-conforming C library where
 521    an ISO C9X compiler (GCC) is available.  Known examples are SunOS
 522    4.x and 4.3BSD.  This assumption means these systems are no longer
 523    supported.  */
 524 #ifndef FOPEN_RB
 525 # include "fopen-bin.h"
 526 #endif
 527
 528 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
 529    FIXME: Assumes 2's complement arithmetic.  */
 530
 531 #if !defined (UINT_MAX)
 532 #define UINT_MAX ((unsigned int)(~0))       /* 0xFFFFFFFF for 32-bits */
 533 #endif
 534
 535 #if !defined (INT_MAX)
 536 #define INT_MAX ((int)(UINT_MAX >> 1))      /* 0x7FFFFFFF for 32-bits */
 537 #endif
 538
 539 #if !defined (INT_MIN)
 540 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
 541 #endif
 542
 543 #if !defined (ULONG_MAX)
 544 #define ULONG_MAX ((unsigned long)(~0L))    /* 0xFFFFFFFF for 32-bits */
 545 #endif
 546
 547 #if !defined (LONG_MAX)
 548 #define LONG_MAX ((long)(ULONG_MAX >> 1))   /* 0x7FFFFFFF for 32-bits */
 549 #endif
 550
 551 #if !defined (ULONGEST_MAX)
 552 #define ULONGEST_MAX (~(ULONGEST)0)        /* 0xFFFFFFFFFFFFFFFF for 64-bits */
 553 #endif
 554
 555 #if !defined (LONGEST_MAX)                 /* 0x7FFFFFFFFFFFFFFF for 64-bits */
 556 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
 557 #endif
 558
 559 /* * Convert a LONGEST to an int.  This is used in contexts (e.g. number of
 560    arguments to a function, number in a value history, register number, etc.)
 561    where the value must not be larger than can fit in an int.  */
 562
 563 extern int longest_to_int (LONGEST);
 564
 565 /* * List of known OS ABIs.  If you change this, make sure to update the
 566    table in osabi.c.  */
 567 enum gdb_osabi
 568 {
 569   GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info.  */
 570
 571   GDB_OSABI_UNKNOWN = 0,        /* keep this zero */
 572
 573   GDB_OSABI_SVR4,
 574   GDB_OSABI_HURD,
 575   GDB_OSABI_SOLARIS,
 576   GDB_OSABI_LINUX,
 577   GDB_OSABI_FREEBSD_AOUT,
 578   GDB_OSABI_FREEBSD_ELF,
 579   GDB_OSABI_NETBSD_AOUT,
 580   GDB_OSABI_NETBSD_ELF,
 581   GDB_OSABI_OPENBSD_ELF,
 582   GDB_OSABI_WINCE,
 583   GDB_OSABI_GO32,
 584   GDB_OSABI_HPUX_ELF,
 585   GDB_OSABI_HPUX_SOM,
 586   GDB_OSABI_QNXNTO,
 587   GDB_OSABI_CYGWIN,
 588   GDB_OSABI_AIX,
 589   GDB_OSABI_DICOS,
 590   GDB_OSABI_DARWIN,
 591   GDB_OSABI_SYMBIAN,
 592   GDB_OSABI_OPENVMS,
 593   GDB_OSABI_LYNXOS178,
 594   GDB_OSABI_NEWLIB,
 595   GDB_OSABI_SDE,
 596
 597   GDB_OSABI_INVALID             /* keep this last */
 598 };
 599
 600 /* Enumerate the requirements a symbol has in order to be evaluated.
 601    These are listed in order of "strength" -- a later entry subsumes
 602    earlier ones.  This fine-grained distinction is important because
 603    it allows for the evaluation of a TLS symbol during unwinding --
 604    when unwinding one has access to registers, but not the frame
 605    itself, because that is being constructed.  */
 606
 607 enum symbol_needs_kind
 608 {
 609   /* No special requirements -- just memory.  */
 610   SYMBOL_NEEDS_NONE,
 611
 612   /* The symbol needs registers.  */
 613   SYMBOL_NEEDS_REGISTERS,
 614
 615   /* The symbol needs a frame.  */
 616   SYMBOL_NEEDS_FRAME
 617 };
 618
 619 /* Dynamic target-system-dependent parameters for GDB.  */
 620 #include "gdbarch.h"
 621
 622 /* * Maximum size of a register.  Something small, but large enough for
 623    all known ISAs.  If it turns out to be too small, make it bigger.  */
 624
 625 enum { MAX_REGISTER_SIZE = 64 };
 626
 627 /* In findvar.c.  */
 628
 629 extern LONGEST extract_signed_integer (const gdb_byte *, int,
 630                                        enum bfd_endian);
 631
 632 extern ULONGEST extract_unsigned_integer (const gdb_byte *, int,
 633                                           enum bfd_endian);
 634
 635 extern int extract_long_unsigned_integer (const gdb_byte *, int,
 636                                           enum bfd_endian, LONGEST *);
 637
 638 extern CORE_ADDR extract_typed_address (const gdb_byte *buf,
 639                                         struct type *type);
 640
 641 extern void store_signed_integer (gdb_byte *, int,
 642                                   enum bfd_endian, LONGEST);
 643
 644 extern void store_unsigned_integer (gdb_byte *, int,
 645                                     enum bfd_endian, ULONGEST);
 646
 647 extern void store_typed_address (gdb_byte *buf, struct type *type,
 648                                  CORE_ADDR addr);
 649
 650 \f
 651 /* From valops.c */
 652
 653 extern int watchdog;
 654
 655 /* Hooks for alternate command interfaces.  */
 656
 657 /* * The name of the interpreter if specified on the command line.  */
 658 extern char *interpreter_p;
 659
 660 struct target_waitstatus;
 661 struct cmd_list_element;
 662
 663 extern void (*deprecated_pre_add_symbol_hook) (const char *);
 664 extern void (*deprecated_post_add_symbol_hook) (void);
 665 extern void (*selected_frame_level_changed_hook) (int);
 666 extern int (*deprecated_ui_loop_hook) (int signo);
 667 extern void (*deprecated_show_load_progress) (const char *section,
 668                                               unsigned long section_sent,
 669                                               unsigned long section_size,
 670                                               unsigned long total_sent,
 671                                               unsigned long total_size);
 672 extern void (*deprecated_print_frame_info_listing_hook) (struct symtab * s,
 673                                                          int line,
 674                                                          int stopline,
 675                                                          int noerror);
 676 extern int (*deprecated_query_hook) (const char *, va_list)
 677      ATTRIBUTE_FPTR_PRINTF(1,0);
 678 extern void (*deprecated_warning_hook) (const char *, va_list)
 679      ATTRIBUTE_FPTR_PRINTF(1,0);
 680 extern void (*deprecated_interactive_hook) (void);
 681 extern void (*deprecated_readline_begin_hook) (char *, ...)
 682      ATTRIBUTE_FPTR_PRINTF_1;
 683 extern char *(*deprecated_readline_hook) (const char *);
 684 extern void (*deprecated_readline_end_hook) (void);
 685 extern void (*deprecated_context_hook) (int);
 686 extern ptid_t (*deprecated_target_wait_hook) (ptid_t ptid,
 687                                               struct target_waitstatus *status,
 688                                               int options);
 689
 690 extern void (*deprecated_attach_hook) (void);
 691 extern void (*deprecated_detach_hook) (void);
 692 extern void (*deprecated_call_command_hook) (struct cmd_list_element * c,
 693                                              char *cmd, int from_tty);
 694
 695 extern int (*deprecated_ui_load_progress_hook) (const char *section,
 696                                                 unsigned long num);
 697
 698 /* If this definition isn't overridden by the header files, assume
 699    that isatty and fileno exist on this system.  */
 700 #ifndef ISATTY
 701 #define ISATTY(FP)      (isatty (fileno (FP)))
 702 #endif
 703
 704 /* * A width that can achieve a better legibility for GDB MI mode.  */
 705 #define GDB_MI_MSG_WIDTH  80
 706
 707 /* From progspace.c */
 708
 709 extern void initialize_progspace (void);
 710 extern void initialize_inferiors (void);
 711
 712 /* * Special block numbers */
 713
 714 enum block_enum
 715 {
 716   GLOBAL_BLOCK = 0,
 717   STATIC_BLOCK = 1,
 718   FIRST_LOCAL_BLOCK = 2
 719 };
 720
 721 /* User selection used in observer.h and multiple print functions.  */
 722
 723 enum user_selected_what_flag
 724   {
 725     /* Inferior selected.  */
 726     USER_SELECTED_INFERIOR = 1 << 1,
 727
 728     /* Thread selected.  */
 729     USER_SELECTED_THREAD = 1 << 2,
 730
 731     /* Frame selected.  */
 732     USER_SELECTED_FRAME = 1 << 3
 733   };
 734 DEF_ENUM_FLAGS_TYPE (enum user_selected_what_flag, user_selected_what);
 735
 736 #include "utils.h"
 737
 738 #endif /* #ifndef DEFS_H */