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) 1986-2013 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 #ifdef HAVE_STDDEF_H
  52 #include <stddef.h>
  53 #endif
  54
  55 #include <unistd.h>
  56
  57 /* For gnulib's PATH_MAX.  */
  58 #include "pathmax.h"
  59
  60 #include <fcntl.h>
  61
  62 /* First include ansidecl.h so we can use the various macro definitions
  63    here and in all subsequent file inclusions.  */
  64
  65 #include "ansidecl.h"
  66
  67 #include "gdb_locale.h"
  68
  69 #include "gdb_wchar.h"
  70
  71 /* For ``enum gdb_signal''.  */
  72 #include "gdb/signals.h"
  73
  74 #include "ui-file.h"
  75
  76 #include "host-defs.h"
  77
  78 /* Just in case they're not defined in stdio.h.  */
  79
  80 #ifndef SEEK_SET
  81 #define SEEK_SET 0
  82 #endif
  83 #ifndef SEEK_CUR
  84 #define SEEK_CUR 1
  85 #endif
  86
  87 /* The O_BINARY flag is defined in fcntl.h on some non-Posix platforms.
  88    It is used as an access modifier in calls to open(), where it acts
  89    similarly to the "b" character in fopen()'s MODE argument.  On Posix
  90    platforms it should be a no-op, so it is defined as 0 here.  This
  91    ensures that the symbol may be used freely elsewhere in gdb.  */
  92
  93 #ifndef O_BINARY
  94 #define O_BINARY 0
  95 #endif
  96
  97 #include <stdarg.h>             /* For va_list.  */
  98
  99 #include "libiberty.h"
 100 #include "hashtab.h"
 101
 102 /* Rather than duplicate all the logic in BFD for figuring out what
 103    types to use (which can be pretty complicated), symply define them
 104    in terms of the corresponding type from BFD.  */
 105
 106 #include "bfd.h"
 107
 108 /* A byte from the program being debugged.  */
 109 typedef bfd_byte gdb_byte;
 110
 111 /* An address in the program being debugged.  Host byte order.  */
 112 typedef bfd_vma CORE_ADDR;
 113
 114 /* The largest CORE_ADDR value.  */
 115 #define CORE_ADDR_MAX (~ (CORE_ADDR) 0)
 116
 117 /* This is to make sure that LONGEST is at least as big as CORE_ADDR.  */
 118
 119 #ifdef BFD64
 120
 121 #define LONGEST BFD_HOST_64_BIT
 122 #define ULONGEST BFD_HOST_U_64_BIT
 123
 124 #else /* No BFD64 */
 125
 126 #define LONGEST long long
 127 #define ULONGEST unsigned long long
 128
 129 #endif /* No BFD64 */
 130
 131 #ifndef min
 132 #define min(a, b) ((a) < (b) ? (a) : (b))
 133 #endif
 134 #ifndef max
 135 #define max(a, b) ((a) > (b) ? (a) : (b))
 136 #endif
 137
 138 #include "ptid.h"
 139
 140 /* Enable xdb commands if set.  */
 141 extern int xdb_commands;
 142
 143 /* Enable dbx commands if set.  */
 144 extern int dbx_commands;
 145
 146 /* System root path, used to find libraries etc.  */
 147 extern char *gdb_sysroot;
 148
 149 /* GDB datadir, used to store data files.  */
 150 extern char *gdb_datadir;
 151
 152 /* If non-NULL, the possibly relocated path to python's "lib" directory
 153    specified with --with-python.  */
 154 extern char *python_libdir;
 155
 156 /* Search path for separate debug files.  */
 157 extern char *debug_file_directory;
 158
 159 /* GDB has two methods for handling SIGINT.  When immediate_quit is
 160    nonzero, a SIGINT results in an immediate longjmp out of the signal
 161    handler.  Otherwise, SIGINT simply sets a flag; code that might
 162    take a long time, and which ought to be interruptible, checks this
 163    flag using the QUIT macro.
 164
 165    If GDB is built with Python support, it uses Python's low-level
 166    interface to implement the flag.  This approach makes it possible
 167    for Python and GDB SIGINT handling to coexist seamlessly.
 168
 169    If GDB is built without Python, it instead uses its traditional
 170    variables.  */
 171
 172 /* Clear the quit flag.  */
 173 extern void clear_quit_flag (void);
 174 /* Evaluate to non-zero if the quit flag is set, zero otherwise.  This
 175    will clear the quit flag as a side effect.  */
 176 extern int check_quit_flag (void);
 177 /* Set the quit flag.  */
 178 extern void set_quit_flag (void);
 179
 180 extern int immediate_quit;
 181
 182 extern void quit (void);
 183
 184 /* FIXME: cagney/2000-03-13: It has been suggested that the peformance
 185    benefits of having a ``QUIT'' macro rather than a function are
 186    marginal.  If the overhead of a QUIT function call is proving
 187    significant then its calling frequency should probably be reduced
 188    [kingdon].  A profile analyzing the current situtation is
 189    needed.  */
 190
 191 #define QUIT { \
 192   if (check_quit_flag ()) quit (); \
 193   if (deprecated_interactive_hook) deprecated_interactive_hook (); \
 194 }
 195
 196 /* Languages represented in the symbol table and elsewhere.
 197    This should probably be in language.h, but since enum's can't
 198    be forward declared to satisfy opaque references before their
 199    actual definition, needs to be here.  */
 200
 201 enum language
 202   {
 203     language_unknown,           /* Language not known */
 204     language_auto,              /* Placeholder for automatic setting */
 205     language_c,                 /* C */
 206     language_cplus,             /* C++ */
 207     language_d,                 /* D */
 208     language_go,                /* Go */
 209     language_objc,              /* Objective-C */
 210     language_java,              /* Java */
 211     language_fortran,           /* Fortran */
 212     language_m2,                /* Modula-2 */
 213     language_asm,               /* Assembly language */
 214     language_pascal,            /* Pascal */
 215     language_ada,               /* Ada */
 216     language_opencl,            /* OpenCL */
 217     language_minimal,           /* All other languages, minimal support only */
 218     nr_languages
 219   };
 220
 221 enum precision_type
 222   {
 223     single_precision,
 224     double_precision,
 225     unspecified_precision
 226   };
 227
 228 /* A generic, not quite boolean, enumeration.  */
 229 enum auto_boolean
 230 {
 231   AUTO_BOOLEAN_TRUE,
 232   AUTO_BOOLEAN_FALSE,
 233   AUTO_BOOLEAN_AUTO
 234 };
 235
 236 /* Potential ways that a function can return a value of a given type.  */
 237 enum return_value_convention
 238 {
 239   /* Where the return value has been squeezed into one or more
 240      registers.  */
 241   RETURN_VALUE_REGISTER_CONVENTION,
 242   /* Commonly known as the "struct return convention".  The caller
 243      passes an additional hidden first parameter to the caller.  That
 244      parameter contains the address at which the value being returned
 245      should be stored.  While typically, and historically, used for
 246      large structs, this is convention is applied to values of many
 247      different types.  */
 248   RETURN_VALUE_STRUCT_CONVENTION,
 249   /* Like the "struct return convention" above, but where the ABI
 250      guarantees that the called function stores the address at which
 251      the value being returned is stored in a well-defined location,
 252      such as a register or memory slot in the stack frame.  Don't use
 253      this if the ABI doesn't explicitly guarantees this.  */
 254   RETURN_VALUE_ABI_RETURNS_ADDRESS,
 255   /* Like the "struct return convention" above, but where the ABI
 256      guarantees that the address at which the value being returned is
 257      stored will be available in a well-defined location, such as a
 258      register or memory slot in the stack frame.  Don't use this if
 259      the ABI doesn't explicitly guarantees this.  */
 260   RETURN_VALUE_ABI_PRESERVES_ADDRESS,
 261 };
 262
 263 /* Needed for various prototypes */
 264
 265 struct symtab;
 266 struct breakpoint;
 267 struct frame_info;
 268 struct gdbarch;
 269 struct value;
 270
 271 /* From main.c.  */
 272
 273 /* This really belong in utils.c (path-utils.c?), but it references some
 274    globals that are currently only available to main.c.  */
 275 extern char *relocate_gdb_directory (const char *initial, int flag);
 276
 277 \f
 278 /* Annotation stuff.  */
 279
 280 extern int annotation_level;    /* in stack.c */
 281 \f
 282
 283 /* From regex.c or libc.  BSD 4.4 declares this with the argument type as
 284    "const char *" in unistd.h, so we can't declare the argument
 285    as "char *".  */
 286
 287 extern char *re_comp (const char *);
 288
 289 /* From symfile.c */
 290
 291 extern void symbol_file_command (char *, int);
 292
 293 /* Remote targets may wish to use this as their load function.  */
 294 extern void generic_load (char *name, int from_tty);
 295
 296 /* Report on STREAM the performance of memory transfer operation,
 297    such as 'load'.
 298    DATA_COUNT is the number of bytes transferred.
 299    WRITE_COUNT is the number of separate write operations, or 0,
 300    if that information is not available.
 301    START_TIME is the time at which an operation was started.
 302    END_TIME is the time at which an operation ended.  */
 303 struct timeval;
 304 extern void print_transfer_performance (struct ui_file *stream,
 305                                         unsigned long data_count,
 306                                         unsigned long write_count,
 307                                         const struct timeval *start_time,
 308                                         const struct timeval *end_time);
 309
 310 /* From top.c */
 311
 312 typedef void initialize_file_ftype (void);
 313
 314 extern char *gdb_readline (char *);
 315
 316 extern char *gdb_readline_wrapper (char *);
 317
 318 extern char *command_line_input (char *, int, char *);
 319
 320 extern void print_prompt (void);
 321
 322 extern int input_from_terminal_p (void);
 323
 324 extern int info_verbose;
 325
 326 /* From printcmd.c */
 327
 328 extern void set_next_address (struct gdbarch *, CORE_ADDR);
 329
 330 extern int print_address_symbolic (struct gdbarch *, CORE_ADDR,
 331                                    struct ui_file *, int, char *);
 332
 333 extern int build_address_symbolic (struct gdbarch *,
 334                                    CORE_ADDR addr,
 335                                    int do_demangle,
 336                                    char **name,
 337                                    int *offset,
 338                                    char **filename,
 339                                    int *line,
 340                                    int *unmapped);
 341
 342 extern void print_address (struct gdbarch *, CORE_ADDR, struct ui_file *);
 343 extern const char *pc_prefix (CORE_ADDR);
 344
 345 /* From source.c */
 346
 347 /* See openp function definition for their description.  */
 348 #define OPF_TRY_CWD_FIRST     0x01
 349 #define OPF_SEARCH_IN_PATH    0x02
 350 #define OPF_RETURN_REALPATH   0x04
 351
 352 extern int openp (const char *, int, const char *, int, char **);
 353
 354 extern int source_full_path_of (const char *, char **);
 355
 356 extern void mod_path (char *, char **);
 357
 358 extern void add_path (char *, char **, int);
 359
 360 extern void directory_switch (char *, int);
 361
 362 extern char *source_path;
 363
 364 extern void init_source_path (void);
 365
 366 /* From exec.c */
 367
 368 /* Process memory area starting at ADDR with length SIZE.  Area is readable iff
 369    READ is non-zero, writable if WRITE is non-zero, executable if EXEC is
 370    non-zero.  Area is possibly changed against its original file based copy if
 371    MODIFIED is non-zero.  DATA is passed without changes from a caller.  */
 372
 373 typedef int (*find_memory_region_ftype) (CORE_ADDR addr, unsigned long size,
 374                                          int read, int write, int exec,
 375                                          int modified, void *data);
 376
 377 /* Take over the 'find_mapped_memory' vector from exec.c.  */
 378 extern void exec_set_find_memory_regions
 379   (int (*func) (find_memory_region_ftype func, void *data));
 380
 381 /* Possible lvalue types.  Like enum language, this should be in
 382    value.h, but needs to be here for the same reason.  */
 383
 384 enum lval_type
 385   {
 386     /* Not an lval.  */
 387     not_lval,
 388     /* In memory.  */
 389     lval_memory,
 390     /* In a register.  Registers are relative to a frame.  */
 391     lval_register,
 392     /* In a gdb internal variable.  */
 393     lval_internalvar,
 394     /* Part of a gdb internal variable (structure field).  */
 395     lval_internalvar_component,
 396     /* Value's bits are fetched and stored using functions provided by
 397        its creator.  */
 398     lval_computed
 399   };
 400
 401 /* Control types for commands */
 402
 403 enum misc_command_type
 404   {
 405     ok_command,
 406     end_command,
 407     else_command,
 408     nop_command
 409   };
 410
 411 enum command_control_type
 412   {
 413     simple_control,
 414     break_control,
 415     continue_control,
 416     while_control,
 417     if_control,
 418     commands_control,
 419     python_control,
 420     while_stepping_control,
 421     invalid_control
 422   };
 423
 424 /* Structure for saved commands lines
 425    (for breakpoints, defined commands, etc).  */
 426
 427 struct command_line
 428   {
 429     struct command_line *next;
 430     char *line;
 431     enum command_control_type control_type;
 432     /* The number of elements in body_list.  */
 433     int body_count;
 434     /* For composite commands, the nested lists of commands.  For
 435        example, for "if" command this will contain the then branch and
 436        the else branch, if that is available.  */
 437     struct command_line **body_list;
 438   };
 439
 440 extern struct command_line *read_command_lines (char *, int, int,
 441                                                 void (*)(char *, void *),
 442                                                 void *);
 443 extern struct command_line *read_command_lines_1 (char * (*) (void), int,
 444                                                   void (*)(char *, void *),
 445                                                   void *);
 446
 447 extern void free_command_lines (struct command_line **);
 448
 449 /* Parameters of the "info proc" command.  */
 450
 451 enum info_proc_what
 452   {
 453     /* Display the default cmdline, cwd and exe outputs.  */
 454     IP_MINIMAL,
 455
 456     /* Display `info proc mappings'.  */
 457     IP_MAPPINGS,
 458
 459     /* Display `info proc status'.  */
 460     IP_STATUS,
 461
 462     /* Display `info proc stat'.  */
 463     IP_STAT,
 464
 465     /* Display `info proc cmdline'.  */
 466     IP_CMDLINE,
 467
 468     /* Display `info proc exe'.  */
 469     IP_EXE,
 470
 471     /* Display `info proc cwd'.  */
 472     IP_CWD,
 473
 474     /* Display all of the above.  */
 475     IP_ALL
 476   };
 477
 478 /* String containing the current directory (what getwd would return).  */
 479
 480 extern char *current_directory;
 481
 482 /* Default radixes for input and output.  Only some values supported.  */
 483 extern unsigned input_radix;
 484 extern unsigned output_radix;
 485
 486 /* Possibilities for prettyformat parameters to routines which print
 487    things.  Like enum language, this should be in value.h, but needs
 488    to be here for the same reason.  FIXME:  If we can eliminate this
 489    as an arg to LA_VAL_PRINT, then we can probably move it back to
 490    value.h.  */
 491
 492 enum val_prettyformat
 493   {
 494     Val_no_prettyformat = 0,
 495     Val_prettyformat,
 496     /* Use the default setting which the user has specified.  */
 497     Val_prettyformat_default
 498   };
 499
 500 /* Optional native machine support.  Non-native (and possibly pure
 501    multi-arch) targets do not need a "nm.h" file.  This will be a
 502    symlink to one of the nm-*.h files, built by the `configure'
 503    script.  */
 504
 505 #ifdef GDB_NM_FILE
 506 #include "nm.h"
 507 #endif
 508
 509 /* Assume that fopen accepts the letter "b" in the mode string.
 510    It is demanded by ISO C9X, and should be supported on all
 511    platforms that claim to have a standard-conforming C library.  On
 512    true POSIX systems it will be ignored and have no effect.  There
 513    may still be systems without a standard-conforming C library where
 514    an ISO C9X compiler (GCC) is available.  Known examples are SunOS
 515    4.x and 4.3BSD.  This assumption means these systems are no longer
 516    supported.  */
 517 #ifndef FOPEN_RB
 518 # include "fopen-bin.h"
 519 #endif
 520
 521 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
 522    FIXME: Assumes 2's complement arithmetic.  */
 523
 524 #if !defined (UINT_MAX)
 525 #define UINT_MAX ((unsigned int)(~0))       /* 0xFFFFFFFF for 32-bits */
 526 #endif
 527
 528 #if !defined (INT_MAX)
 529 #define INT_MAX ((int)(UINT_MAX >> 1))      /* 0x7FFFFFFF for 32-bits */
 530 #endif
 531
 532 #if !defined (INT_MIN)
 533 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
 534 #endif
 535
 536 #if !defined (ULONG_MAX)
 537 #define ULONG_MAX ((unsigned long)(~0L))    /* 0xFFFFFFFF for 32-bits */
 538 #endif
 539
 540 #if !defined (LONG_MAX)
 541 #define LONG_MAX ((long)(ULONG_MAX >> 1))   /* 0x7FFFFFFF for 32-bits */
 542 #endif
 543
 544 #if !defined (ULONGEST_MAX)
 545 #define ULONGEST_MAX (~(ULONGEST)0)        /* 0xFFFFFFFFFFFFFFFF for 64-bits */
 546 #endif
 547
 548 #if !defined (LONGEST_MAX)                 /* 0x7FFFFFFFFFFFFFFF for 64-bits */
 549 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
 550 #endif
 551
 552 /* Convert a LONGEST to an int.  This is used in contexts (e.g. number of
 553    arguments to a function, number in a value history, register number, etc.)
 554    where the value must not be larger than can fit in an int.  */
 555
 556 extern int longest_to_int (LONGEST);
 557
 558 /* Utility macros to allocate typed memory.  Avoids errors like:
 559    struct foo *foo = xmalloc (sizeof struct bar); and memset (foo,
 560    sizeof (struct foo), 0).  */
 561 #define XZALLOC(TYPE) ((TYPE*) xzalloc (sizeof (TYPE)))
 562 #define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE)))
 563 #define XCALLOC(NMEMB, TYPE) ((TYPE*) xcalloc ((NMEMB), sizeof (TYPE)))
 564
 565 #include "common-utils.h"
 566
 567 /* List of known OS ABIs.  If you change this, make sure to update the
 568    table in osabi.c.  */
 569 enum gdb_osabi
 570 {
 571   GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info.  */
 572
 573   GDB_OSABI_UNKNOWN = 0,        /* keep this zero */
 574
 575   GDB_OSABI_SVR4,
 576   GDB_OSABI_HURD,
 577   GDB_OSABI_SOLARIS,
 578   GDB_OSABI_OSF1,
 579   GDB_OSABI_LINUX,
 580   GDB_OSABI_FREEBSD_AOUT,
 581   GDB_OSABI_FREEBSD_ELF,
 582   GDB_OSABI_NETBSD_AOUT,
 583   GDB_OSABI_NETBSD_ELF,
 584   GDB_OSABI_OPENBSD_ELF,
 585   GDB_OSABI_WINCE,
 586   GDB_OSABI_GO32,
 587   GDB_OSABI_IRIX,
 588   GDB_OSABI_HPUX_ELF,
 589   GDB_OSABI_HPUX_SOM,
 590   GDB_OSABI_QNXNTO,
 591   GDB_OSABI_CYGWIN,
 592   GDB_OSABI_AIX,
 593   GDB_OSABI_DICOS,
 594   GDB_OSABI_DARWIN,
 595   GDB_OSABI_SYMBIAN,
 596   GDB_OSABI_OPENVMS,
 597   GDB_OSABI_LYNXOS178,
 598   GDB_OSABI_NEWLIB,
 599
 600   GDB_OSABI_INVALID             /* keep this last */
 601 };
 602
 603 /* Global functions from other, non-gdb GNU thingies.
 604    Libiberty thingies are no longer declared here.  We include libiberty.h
 605    above, instead.  */
 606
 607 /* From other system libraries */
 608
 609 #ifdef HAVE_STDDEF_H
 610 #include <stddef.h>
 611 #endif
 612
 613 #ifdef HAVE_STDLIB_H
 614 #include <stdlib.h>
 615 #endif
 616
 617
 618 #ifndef atof
 619 extern double atof (const char *);      /* X3.159-1989  4.10.1.1 */
 620 #endif
 621
 622 /* Various possibilities for alloca.  */
 623 #ifndef alloca
 624 #ifdef __GNUC__
 625 #define alloca __builtin_alloca
 626 #else /* Not GNU C */
 627 #ifdef HAVE_ALLOCA_H
 628 #include <alloca.h>
 629 #else
 630 #ifdef _AIX
 631 #pragma alloca
 632 #else
 633
 634 /* We need to be careful not to declare this in a way which conflicts with
 635    bison.  Bison never declares it as char *, but under various circumstances
 636    (like __hpux) we need to use void *.  */
 637 extern void *alloca ();
 638 #endif /* Not _AIX */
 639 #endif /* Not HAVE_ALLOCA_H */
 640 #endif /* Not GNU C */
 641 #endif /* alloca not defined */
 642
 643 /* Dynamic target-system-dependent parameters for GDB.  */
 644 #include "gdbarch.h"
 645
 646 /* Maximum size of a register.  Something small, but large enough for
 647    all known ISAs.  If it turns out to be too small, make it bigger.  */
 648
 649 enum { MAX_REGISTER_SIZE = 64 };
 650
 651 /* Static target-system-dependent parameters for GDB.  */
 652
 653 /* Number of bits in a char or unsigned char for the target machine.
 654    Just like CHAR_BIT in <limits.h> but describes the target machine.  */
 655 #if !defined (TARGET_CHAR_BIT)
 656 #define TARGET_CHAR_BIT 8
 657 #endif
 658
 659 /* If we picked up a copy of CHAR_BIT from a configuration file
 660    (which may get it by including <limits.h>) then use it to set
 661    the number of bits in a host char.  If not, use the same size
 662    as the target.  */
 663
 664 #if defined (CHAR_BIT)
 665 #define HOST_CHAR_BIT CHAR_BIT
 666 #else
 667 #define HOST_CHAR_BIT TARGET_CHAR_BIT
 668 #endif
 669
 670 /* In findvar.c.  */
 671
 672 extern LONGEST extract_signed_integer (const gdb_byte *, int,
 673                                        enum bfd_endian);
 674
 675 extern ULONGEST extract_unsigned_integer (const gdb_byte *, int,
 676                                           enum bfd_endian);
 677
 678 extern int extract_long_unsigned_integer (const gdb_byte *, int,
 679                                           enum bfd_endian, LONGEST *);
 680
 681 extern CORE_ADDR extract_typed_address (const gdb_byte *buf,
 682                                         struct type *type);
 683
 684 extern void store_signed_integer (gdb_byte *, int,
 685                                   enum bfd_endian, LONGEST);
 686
 687 extern void store_unsigned_integer (gdb_byte *, int,
 688                                     enum bfd_endian, ULONGEST);
 689
 690 extern void store_typed_address (gdb_byte *buf, struct type *type,
 691                                  CORE_ADDR addr);
 692
 693 \f
 694 /* From valops.c */
 695
 696 extern int watchdog;
 697
 698 /* Hooks for alternate command interfaces.  */
 699
 700 /* The name of the interpreter if specified on the command line.  */
 701 extern char *interpreter_p;
 702
 703 /* If a given interpreter matches INTERPRETER_P then it should update
 704    deprecated_init_ui_hook with the per-interpreter implementation.  */
 705 /* FIXME: deprecated_init_ui_hook should be moved here.  */
 706
 707 struct target_waitstatus;
 708 struct cmd_list_element;
 709
 710 extern void (*deprecated_pre_add_symbol_hook) (const char *);
 711 extern void (*deprecated_post_add_symbol_hook) (void);
 712 extern void (*selected_frame_level_changed_hook) (int);
 713 extern int (*deprecated_ui_loop_hook) (int signo);
 714 extern void (*deprecated_init_ui_hook) (char *argv0);
 715 extern void (*deprecated_show_load_progress) (const char *section,
 716                                               unsigned long section_sent,
 717                                               unsigned long section_size,
 718                                               unsigned long total_sent,
 719                                               unsigned long total_size);
 720 extern void (*deprecated_print_frame_info_listing_hook) (struct symtab * s,
 721                                                          int line,
 722                                                          int stopline,
 723                                                          int noerror);
 724 extern int (*deprecated_query_hook) (const char *, va_list)
 725      ATTRIBUTE_FPTR_PRINTF(1,0);
 726 extern void (*deprecated_warning_hook) (const char *, va_list)
 727      ATTRIBUTE_FPTR_PRINTF(1,0);
 728 extern void (*deprecated_flush_hook) (struct ui_file * stream);
 729 extern void (*deprecated_interactive_hook) (void);
 730 extern void (*deprecated_readline_begin_hook) (char *, ...)
 731      ATTRIBUTE_FPTR_PRINTF_1;
 732 extern char *(*deprecated_readline_hook) (char *);
 733 extern void (*deprecated_readline_end_hook) (void);
 734 extern void (*deprecated_register_changed_hook) (int regno);
 735 extern void (*deprecated_context_hook) (int);
 736 extern ptid_t (*deprecated_target_wait_hook) (ptid_t ptid,
 737                                               struct target_waitstatus *status,
 738                                               int options);
 739
 740 extern void (*deprecated_attach_hook) (void);
 741 extern void (*deprecated_detach_hook) (void);
 742 extern void (*deprecated_call_command_hook) (struct cmd_list_element * c,
 743                                              char *cmd, int from_tty);
 744
 745 extern void (*deprecated_set_hook) (struct cmd_list_element * c);
 746
 747 extern int (*deprecated_ui_load_progress_hook) (const char *section,
 748                                                 unsigned long num);
 749
 750 /* Inhibit window interface if non-zero.  */
 751
 752 extern int use_windows;
 753
 754 /* If this definition isn't overridden by the header files, assume
 755    that isatty and fileno exist on this system.  */
 756 #ifndef ISATTY
 757 #define ISATTY(FP)      (isatty (fileno (FP)))
 758 #endif
 759
 760 /* A width that can achieve a better legibility for GDB MI mode.  */
 761 #define GDB_MI_MSG_WIDTH  80
 762
 763 /* From progspace.c */
 764
 765 extern void initialize_progspace (void);
 766 extern void initialize_inferiors (void);
 767
 768 /* Special block numbers */
 769
 770 enum block_enum
 771 {
 772   GLOBAL_BLOCK = 0,
 773   STATIC_BLOCK = 1,
 774   FIRST_LOCAL_BLOCK = 2
 775 };
 776
 777 #include "utils.h"
 778
 779 #endif /* #ifndef DEFS_H */