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 *skip_quoted (char *);
 315
 316 extern char *gdb_readline (char *);
 317
 318 extern char *gdb_readline_wrapper (char *);
 319
 320 extern char *command_line_input (char *, int, char *);
 321
 322 extern void print_prompt (void);
 323
 324 extern int input_from_terminal_p (void);
 325
 326 extern int info_verbose;
 327
 328 /* From printcmd.c */
 329
 330 extern void set_next_address (struct gdbarch *, CORE_ADDR);
 331
 332 extern int print_address_symbolic (struct gdbarch *, CORE_ADDR,
 333                                    struct ui_file *, int, char *);
 334
 335 extern int build_address_symbolic (struct gdbarch *,
 336                                    CORE_ADDR addr,
 337                                    int do_demangle,
 338                                    char **name,
 339                                    int *offset,
 340                                    char **filename,
 341                                    int *line,
 342                                    int *unmapped);
 343
 344 extern void print_address (struct gdbarch *, CORE_ADDR, struct ui_file *);
 345 extern const char *pc_prefix (CORE_ADDR);
 346
 347 /* From source.c */
 348
 349 /* See openp function definition for their description.  */
 350 #define OPF_TRY_CWD_FIRST     0x01
 351 #define OPF_SEARCH_IN_PATH    0x02
 352 #define OPF_RETURN_REALPATH   0x04
 353
 354 extern int openp (const char *, int, const char *, int, char **);
 355
 356 extern int source_full_path_of (const char *, char **);
 357
 358 extern void mod_path (char *, char **);
 359
 360 extern void add_path (char *, char **, int);
 361
 362 extern void directory_switch (char *, int);
 363
 364 extern char *source_path;
 365
 366 extern void init_source_path (void);
 367
 368 /* From exec.c */
 369
 370 /* Process memory area starting at ADDR with length SIZE.  Area is readable iff
 371    READ is non-zero, writable if WRITE is non-zero, executable if EXEC is
 372    non-zero.  Area is possibly changed against its original file based copy if
 373    MODIFIED is non-zero.  DATA is passed without changes from a caller.  */
 374
 375 typedef int (*find_memory_region_ftype) (CORE_ADDR addr, unsigned long size,
 376                                          int read, int write, int exec,
 377                                          int modified, void *data);
 378
 379 /* Take over the 'find_mapped_memory' vector from exec.c.  */
 380 extern void exec_set_find_memory_regions
 381   (int (*func) (find_memory_region_ftype func, void *data));
 382
 383 /* Possible lvalue types.  Like enum language, this should be in
 384    value.h, but needs to be here for the same reason.  */
 385
 386 enum lval_type
 387   {
 388     /* Not an lval.  */
 389     not_lval,
 390     /* In memory.  */
 391     lval_memory,
 392     /* In a register.  Registers are relative to a frame.  */
 393     lval_register,
 394     /* In a gdb internal variable.  */
 395     lval_internalvar,
 396     /* Part of a gdb internal variable (structure field).  */
 397     lval_internalvar_component,
 398     /* Value's bits are fetched and stored using functions provided by
 399        its creator.  */
 400     lval_computed
 401   };
 402
 403 /* Control types for commands */
 404
 405 enum misc_command_type
 406   {
 407     ok_command,
 408     end_command,
 409     else_command,
 410     nop_command
 411   };
 412
 413 enum command_control_type
 414   {
 415     simple_control,
 416     break_control,
 417     continue_control,
 418     while_control,
 419     if_control,
 420     commands_control,
 421     python_control,
 422     while_stepping_control,
 423     invalid_control
 424   };
 425
 426 /* Structure for saved commands lines
 427    (for breakpoints, defined commands, etc).  */
 428
 429 struct command_line
 430   {
 431     struct command_line *next;
 432     char *line;
 433     enum command_control_type control_type;
 434     /* The number of elements in body_list.  */
 435     int body_count;
 436     /* For composite commands, the nested lists of commands.  For
 437        example, for "if" command this will contain the then branch and
 438        the else branch, if that is available.  */
 439     struct command_line **body_list;
 440   };
 441
 442 extern struct command_line *read_command_lines (char *, int, int,
 443                                                 void (*)(char *, void *),
 444                                                 void *);
 445 extern struct command_line *read_command_lines_1 (char * (*) (void), int,
 446                                                   void (*)(char *, void *),
 447                                                   void *);
 448
 449 extern void free_command_lines (struct command_line **);
 450
 451 /* Parameters of the "info proc" command.  */
 452
 453 enum info_proc_what
 454   {
 455     /* Display the default cmdline, cwd and exe outputs.  */
 456     IP_MINIMAL,
 457
 458     /* Display `info proc mappings'.  */
 459     IP_MAPPINGS,
 460
 461     /* Display `info proc status'.  */
 462     IP_STATUS,
 463
 464     /* Display `info proc stat'.  */
 465     IP_STAT,
 466
 467     /* Display `info proc cmdline'.  */
 468     IP_CMDLINE,
 469
 470     /* Display `info proc exe'.  */
 471     IP_EXE,
 472
 473     /* Display `info proc cwd'.  */
 474     IP_CWD,
 475
 476     /* Display all of the above.  */
 477     IP_ALL
 478   };
 479
 480 /* String containing the current directory (what getwd would return).  */
 481
 482 extern char *current_directory;
 483
 484 /* Default radixes for input and output.  Only some values supported.  */
 485 extern unsigned input_radix;
 486 extern unsigned output_radix;
 487
 488 /* Possibilities for prettyformat parameters to routines which print
 489    things.  Like enum language, this should be in value.h, but needs
 490    to be here for the same reason.  FIXME:  If we can eliminate this
 491    as an arg to LA_VAL_PRINT, then we can probably move it back to
 492    value.h.  */
 493
 494 enum val_prettyformat
 495   {
 496     Val_no_prettyformat = 0,
 497     Val_prettyformat,
 498     /* Use the default setting which the user has specified.  */
 499     Val_prettyformat_default
 500   };
 501
 502 /* Optional native machine support.  Non-native (and possibly pure
 503    multi-arch) targets do not need a "nm.h" file.  This will be a
 504    symlink to one of the nm-*.h files, built by the `configure'
 505    script.  */
 506
 507 #ifdef GDB_NM_FILE
 508 #include "nm.h"
 509 #endif
 510
 511 /* Assume that fopen accepts the letter "b" in the mode string.
 512    It is demanded by ISO C9X, and should be supported on all
 513    platforms that claim to have a standard-conforming C library.  On
 514    true POSIX systems it will be ignored and have no effect.  There
 515    may still be systems without a standard-conforming C library where
 516    an ISO C9X compiler (GCC) is available.  Known examples are SunOS
 517    4.x and 4.3BSD.  This assumption means these systems are no longer
 518    supported.  */
 519 #ifndef FOPEN_RB
 520 # include "fopen-bin.h"
 521 #endif
 522
 523 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
 524    FIXME: Assumes 2's complement arithmetic.  */
 525
 526 #if !defined (UINT_MAX)
 527 #define UINT_MAX ((unsigned int)(~0))       /* 0xFFFFFFFF for 32-bits */
 528 #endif
 529
 530 #if !defined (INT_MAX)
 531 #define INT_MAX ((int)(UINT_MAX >> 1))      /* 0x7FFFFFFF for 32-bits */
 532 #endif
 533
 534 #if !defined (INT_MIN)
 535 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
 536 #endif
 537
 538 #if !defined (ULONG_MAX)
 539 #define ULONG_MAX ((unsigned long)(~0L))    /* 0xFFFFFFFF for 32-bits */
 540 #endif
 541
 542 #if !defined (LONG_MAX)
 543 #define LONG_MAX ((long)(ULONG_MAX >> 1))   /* 0x7FFFFFFF for 32-bits */
 544 #endif
 545
 546 #if !defined (ULONGEST_MAX)
 547 #define ULONGEST_MAX (~(ULONGEST)0)        /* 0xFFFFFFFFFFFFFFFF for 64-bits */
 548 #endif
 549
 550 #if !defined (LONGEST_MAX)                 /* 0x7FFFFFFFFFFFFFFF for 64-bits */
 551 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
 552 #endif
 553
 554 /* Convert a LONGEST to an int.  This is used in contexts (e.g. number of
 555    arguments to a function, number in a value history, register number, etc.)
 556    where the value must not be larger than can fit in an int.  */
 557
 558 extern int longest_to_int (LONGEST);
 559
 560 /* Utility macros to allocate typed memory.  Avoids errors like:
 561    struct foo *foo = xmalloc (sizeof struct bar); and memset (foo,
 562    sizeof (struct foo), 0).  */
 563 #define XZALLOC(TYPE) ((TYPE*) xzalloc (sizeof (TYPE)))
 564 #define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE)))
 565 #define XCALLOC(NMEMB, TYPE) ((TYPE*) xcalloc ((NMEMB), sizeof (TYPE)))
 566
 567 #include "common-utils.h"
 568
 569 /* List of known OS ABIs.  If you change this, make sure to update the
 570    table in osabi.c.  */
 571 enum gdb_osabi
 572 {
 573   GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info.  */
 574
 575   GDB_OSABI_UNKNOWN = 0,        /* keep this zero */
 576
 577   GDB_OSABI_SVR4,
 578   GDB_OSABI_HURD,
 579   GDB_OSABI_SOLARIS,
 580   GDB_OSABI_OSF1,
 581   GDB_OSABI_LINUX,
 582   GDB_OSABI_FREEBSD_AOUT,
 583   GDB_OSABI_FREEBSD_ELF,
 584   GDB_OSABI_NETBSD_AOUT,
 585   GDB_OSABI_NETBSD_ELF,
 586   GDB_OSABI_OPENBSD_ELF,
 587   GDB_OSABI_WINCE,
 588   GDB_OSABI_GO32,
 589   GDB_OSABI_IRIX,
 590   GDB_OSABI_HPUX_ELF,
 591   GDB_OSABI_HPUX_SOM,
 592   GDB_OSABI_QNXNTO,
 593   GDB_OSABI_CYGWIN,
 594   GDB_OSABI_AIX,
 595   GDB_OSABI_DICOS,
 596   GDB_OSABI_DARWIN,
 597   GDB_OSABI_SYMBIAN,
 598   GDB_OSABI_OPENVMS,
 599   GDB_OSABI_LYNXOS178,
 600   GDB_OSABI_NEWLIB,
 601
 602   GDB_OSABI_INVALID             /* keep this last */
 603 };
 604
 605 /* Global functions from other, non-gdb GNU thingies.
 606    Libiberty thingies are no longer declared here.  We include libiberty.h
 607    above, instead.  */
 608
 609 /* From other system libraries */
 610
 611 #ifdef HAVE_STDDEF_H
 612 #include <stddef.h>
 613 #endif
 614
 615 #ifdef HAVE_STDLIB_H
 616 #include <stdlib.h>
 617 #endif
 618
 619
 620 #ifndef atof
 621 extern double atof (const char *);      /* X3.159-1989  4.10.1.1 */
 622 #endif
 623
 624 /* Various possibilities for alloca.  */
 625 #ifndef alloca
 626 #ifdef __GNUC__
 627 #define alloca __builtin_alloca
 628 #else /* Not GNU C */
 629 #ifdef HAVE_ALLOCA_H
 630 #include <alloca.h>
 631 #else
 632 #ifdef _AIX
 633 #pragma alloca
 634 #else
 635
 636 /* We need to be careful not to declare this in a way which conflicts with
 637    bison.  Bison never declares it as char *, but under various circumstances
 638    (like __hpux) we need to use void *.  */
 639 extern void *alloca ();
 640 #endif /* Not _AIX */
 641 #endif /* Not HAVE_ALLOCA_H */
 642 #endif /* Not GNU C */
 643 #endif /* alloca not defined */
 644
 645 /* Dynamic target-system-dependent parameters for GDB.  */
 646 #include "gdbarch.h"
 647
 648 /* Maximum size of a register.  Something small, but large enough for
 649    all known ISAs.  If it turns out to be too small, make it bigger.  */
 650
 651 enum { MAX_REGISTER_SIZE = 64 };
 652
 653 /* Static target-system-dependent parameters for GDB.  */
 654
 655 /* Number of bits in a char or unsigned char for the target machine.
 656    Just like CHAR_BIT in <limits.h> but describes the target machine.  */
 657 #if !defined (TARGET_CHAR_BIT)
 658 #define TARGET_CHAR_BIT 8
 659 #endif
 660
 661 /* If we picked up a copy of CHAR_BIT from a configuration file
 662    (which may get it by including <limits.h>) then use it to set
 663    the number of bits in a host char.  If not, use the same size
 664    as the target.  */
 665
 666 #if defined (CHAR_BIT)
 667 #define HOST_CHAR_BIT CHAR_BIT
 668 #else
 669 #define HOST_CHAR_BIT TARGET_CHAR_BIT
 670 #endif
 671
 672 /* In findvar.c.  */
 673
 674 extern LONGEST extract_signed_integer (const gdb_byte *, int,
 675                                        enum bfd_endian);
 676
 677 extern ULONGEST extract_unsigned_integer (const gdb_byte *, int,
 678                                           enum bfd_endian);
 679
 680 extern int extract_long_unsigned_integer (const gdb_byte *, int,
 681                                           enum bfd_endian, LONGEST *);
 682
 683 extern CORE_ADDR extract_typed_address (const gdb_byte *buf,
 684                                         struct type *type);
 685
 686 extern void store_signed_integer (gdb_byte *, int,
 687                                   enum bfd_endian, LONGEST);
 688
 689 extern void store_unsigned_integer (gdb_byte *, int,
 690                                     enum bfd_endian, ULONGEST);
 691
 692 extern void store_typed_address (gdb_byte *buf, struct type *type,
 693                                  CORE_ADDR addr);
 694
 695 \f
 696 /* From valops.c */
 697
 698 extern int watchdog;
 699
 700 /* Hooks for alternate command interfaces.  */
 701
 702 /* The name of the interpreter if specified on the command line.  */
 703 extern char *interpreter_p;
 704
 705 /* If a given interpreter matches INTERPRETER_P then it should update
 706    deprecated_init_ui_hook with the per-interpreter implementation.  */
 707 /* FIXME: deprecated_init_ui_hook should be moved here.  */
 708
 709 struct target_waitstatus;
 710 struct cmd_list_element;
 711
 712 extern void (*deprecated_pre_add_symbol_hook) (const char *);
 713 extern void (*deprecated_post_add_symbol_hook) (void);
 714 extern void (*selected_frame_level_changed_hook) (int);
 715 extern int (*deprecated_ui_loop_hook) (int signo);
 716 extern void (*deprecated_init_ui_hook) (char *argv0);
 717 extern void (*deprecated_show_load_progress) (const char *section,
 718                                               unsigned long section_sent,
 719                                               unsigned long section_size,
 720                                               unsigned long total_sent,
 721                                               unsigned long total_size);
 722 extern void (*deprecated_print_frame_info_listing_hook) (struct symtab * s,
 723                                                          int line,
 724                                                          int stopline,
 725                                                          int noerror);
 726 extern int (*deprecated_query_hook) (const char *, va_list)
 727      ATTRIBUTE_FPTR_PRINTF(1,0);
 728 extern void (*deprecated_warning_hook) (const char *, va_list)
 729      ATTRIBUTE_FPTR_PRINTF(1,0);
 730 extern void (*deprecated_flush_hook) (struct ui_file * stream);
 731 extern void (*deprecated_interactive_hook) (void);
 732 extern void (*deprecated_readline_begin_hook) (char *, ...)
 733      ATTRIBUTE_FPTR_PRINTF_1;
 734 extern char *(*deprecated_readline_hook) (char *);
 735 extern void (*deprecated_readline_end_hook) (void);
 736 extern void (*deprecated_register_changed_hook) (int regno);
 737 extern void (*deprecated_context_hook) (int);
 738 extern ptid_t (*deprecated_target_wait_hook) (ptid_t ptid,
 739                                               struct target_waitstatus *status,
 740                                               int options);
 741
 742 extern void (*deprecated_attach_hook) (void);
 743 extern void (*deprecated_detach_hook) (void);
 744 extern void (*deprecated_call_command_hook) (struct cmd_list_element * c,
 745                                              char *cmd, int from_tty);
 746
 747 extern void (*deprecated_set_hook) (struct cmd_list_element * c);
 748
 749 extern int (*deprecated_ui_load_progress_hook) (const char *section,
 750                                                 unsigned long num);
 751
 752 /* Inhibit window interface if non-zero.  */
 753
 754 extern int use_windows;
 755
 756 /* Provide default definitions of PIDGET, TIDGET, and MERGEPID.
 757    The name ``TIDGET'' is a historical accident.  Many uses of TIDGET
 758    in the code actually refer to a lightweight process id, i.e,
 759    something that can be considered a process id in its own right for
 760    certain purposes.  */
 761
 762 #ifndef PIDGET
 763 #define PIDGET(PTID) (ptid_get_pid (PTID))
 764 #define TIDGET(PTID) (ptid_get_lwp (PTID))
 765 #define MERGEPID(PID, TID) ptid_build (PID, TID, 0)
 766 #endif
 767
 768 /* If this definition isn't overridden by the header files, assume
 769    that isatty and fileno exist on this system.  */
 770 #ifndef ISATTY
 771 #define ISATTY(FP)      (isatty (fileno (FP)))
 772 #endif
 773
 774 /* A width that can achieve a better legibility for GDB MI mode.  */
 775 #define GDB_MI_MSG_WIDTH  80
 776
 777 /* From progspace.c */
 778
 779 extern void initialize_progspace (void);
 780 extern void initialize_inferiors (void);
 781
 782 /* Special block numbers */
 783
 784 enum block_enum
 785 {
 786   GLOBAL_BLOCK = 0,
 787   STATIC_BLOCK = 1,
 788   FIRST_LOCAL_BLOCK = 2
 789 };
 790
 791 #include "utils.h"
 792
 793 #endif /* #ifndef DEFS_H */