contrib/gdb-7/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 "libgnu/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 #ifdef HAVE_UNISTD_H
  56 #include <unistd.h>
  57 #endif
  58
  59 #include <fcntl.h>
  60
  61 /* First include ansidecl.h so we can use the various macro definitions
  62    here and in all subsequent file inclusions.  */
  63
  64 #include "ansidecl.h"
  65
  66 #include "gdb_locale.h"
  67
  68 #include "gdb_wchar.h"
  69
  70 /* For ``enum gdb_signal''.  */
  71 #include "gdb/signals.h"
  72
  73 #include "ui-file.h"
  74
  75 #include "host-defs.h"
  76
  77 /* Just in case they're not defined in stdio.h.  */
  78
  79 #ifndef SEEK_SET
  80 #define SEEK_SET 0
  81 #endif
  82 #ifndef SEEK_CUR
  83 #define SEEK_CUR 1
  84 #endif
  85
  86 /* The O_BINARY flag is defined in fcntl.h on some non-Posix platforms.
  87    It is used as an access modifier in calls to open(), where it acts
  88    similarly to the "b" character in fopen()'s MODE argument.  On Posix
  89    platforms it should be a no-op, so it is defined as 0 here.  This
  90    ensures that the symbol may be used freely elsewhere in gdb.  */
  91
  92 #ifndef O_BINARY
  93 #define O_BINARY 0
  94 #endif
  95
  96 #include <stdarg.h>             /* For va_list.  */
  97
  98 #include "libiberty.h"
  99 #include "hashtab.h"
 100
 101 /* Rather than duplicate all the logic in BFD for figuring out what
 102    types to use (which can be pretty complicated), symply define them
 103    in terms of the corresponding type from BFD.  */
 104
 105 #include "bfd.h"
 106
 107 /* A byte from the program being debugged.  */
 108 typedef bfd_byte gdb_byte;
 109
 110 /* An address in the program being debugged.  Host byte order.  */
 111 typedef bfd_vma CORE_ADDR;
 112
 113 /* The largest CORE_ADDR value.  */
 114 #define CORE_ADDR_MAX (~ (CORE_ADDR) 0)
 115
 116 /* This is to make sure that LONGEST is at least as big as CORE_ADDR.  */
 117
 118 #ifdef BFD64
 119
 120 #define LONGEST BFD_HOST_64_BIT
 121 #define ULONGEST BFD_HOST_U_64_BIT
 122
 123 #else /* No BFD64 */
 124
 125 #define LONGEST long long
 126 #define ULONGEST unsigned long long
 127
 128 #endif /* No BFD64 */
 129
 130 #ifndef min
 131 #define min(a, b) ((a) < (b) ? (a) : (b))
 132 #endif
 133 #ifndef max
 134 #define max(a, b) ((a) > (b) ? (a) : (b))
 135 #endif
 136
 137 #include "ptid.h"
 138
 139 /* Enable xdb commands if set.  */
 140 extern int xdb_commands;
 141
 142 /* Enable dbx commands if set.  */
 143 extern int dbx_commands;
 144
 145 /* System root path, used to find libraries etc.  */
 146 extern char *gdb_sysroot;
 147
 148 /* GDB datadir, used to store data files.  */
 149 extern char *gdb_datadir;
 150
 151 /* If non-NULL, the possibly relocated path to python's "lib" directory
 152    specified with --with-python.  */
 153 extern char *python_libdir;
 154
 155 /* Search path for separate debug files.  */
 156 extern char *debug_file_directory;
 157
 158 /* GDB has two methods for handling SIGINT.  When immediate_quit is
 159    nonzero, a SIGINT results in an immediate longjmp out of the signal
 160    handler.  Otherwise, SIGINT simply sets a flag; code that might
 161    take a long time, and which ought to be interruptible, checks this
 162    flag using the QUIT macro.
 163
 164    If GDB is built with Python support, it uses Python's low-level
 165    interface to implement the flag.  This approach makes it possible
 166    for Python and GDB SIGINT handling to coexist seamlessly.
 167
 168    If GDB is built without Python, it instead uses its traditional
 169    variables.  */
 170
 171 /* Clear the quit flag.  */
 172 extern void clear_quit_flag (void);
 173 /* Evaluate to non-zero if the quit flag is set, zero otherwise.  This
 174    will clear the quit flag as a side effect.  */
 175 extern int check_quit_flag (void);
 176 /* Set the quit flag.  */
 177 extern void set_quit_flag (void);
 178
 179 extern int immediate_quit;
 180
 181 extern void quit (void);
 182
 183 /* FIXME: cagney/2000-03-13: It has been suggested that the peformance
 184    benefits of having a ``QUIT'' macro rather than a function are
 185    marginal.  If the overhead of a QUIT function call is proving
 186    significant then its calling frequency should probably be reduced
 187    [kingdon].  A profile analyzing the current situtation is
 188    needed.  */
 189
 190 #define QUIT { \
 191   if (check_quit_flag ()) quit (); \
 192   if (deprecated_interactive_hook) deprecated_interactive_hook (); \
 193 }
 194
 195 /* Languages represented in the symbol table and elsewhere.
 196    This should probably be in language.h, but since enum's can't
 197    be forward declared to satisfy opaque references before their
 198    actual definition, needs to be here.  */
 199
 200 enum language
 201   {
 202     language_unknown,           /* Language not known */
 203     language_auto,              /* Placeholder for automatic setting */
 204     language_c,                 /* C */
 205     language_cplus,             /* C++ */
 206     language_d,                 /* D */
 207     language_go,                /* Go */
 208     language_objc,              /* Objective-C */
 209     language_java,              /* Java */
 210     language_fortran,           /* Fortran */
 211     language_m2,                /* Modula-2 */
 212     language_asm,               /* Assembly language */
 213     language_pascal,            /* Pascal */
 214     language_ada,               /* Ada */
 215     language_opencl,            /* OpenCL */
 216     language_minimal,           /* All other languages, minimal support only */
 217     nr_languages
 218   };
 219
 220 enum precision_type
 221   {
 222     single_precision,
 223     double_precision,
 224     unspecified_precision
 225   };
 226
 227 /* A generic, not quite boolean, enumeration.  */
 228 enum auto_boolean
 229 {
 230   AUTO_BOOLEAN_TRUE,
 231   AUTO_BOOLEAN_FALSE,
 232   AUTO_BOOLEAN_AUTO
 233 };
 234
 235 /* Potential ways that a function can return a value of a given type.  */
 236 enum return_value_convention
 237 {
 238   /* Where the return value has been squeezed into one or more
 239      registers.  */
 240   RETURN_VALUE_REGISTER_CONVENTION,
 241   /* Commonly known as the "struct return convention".  The caller
 242      passes an additional hidden first parameter to the caller.  That
 243      parameter contains the address at which the value being returned
 244      should be stored.  While typically, and historically, used for
 245      large structs, this is convention is applied to values of many
 246      different types.  */
 247   RETURN_VALUE_STRUCT_CONVENTION,
 248   /* Like the "struct return convention" above, but where the ABI
 249      guarantees that the called function stores the address at which
 250      the value being returned is stored in a well-defined location,
 251      such as a register or memory slot in the stack frame.  Don't use
 252      this if the ABI doesn't explicitly guarantees this.  */
 253   RETURN_VALUE_ABI_RETURNS_ADDRESS,
 254   /* Like the "struct return convention" above, but where the ABI
 255      guarantees that the address at which the value being returned is
 256      stored will be available in a well-defined location, such as a
 257      register or memory slot in the stack frame.  Don't use this if
 258      the ABI doesn't explicitly guarantees this.  */
 259   RETURN_VALUE_ABI_PRESERVES_ADDRESS,
 260 };
 261
 262 /* Needed for various prototypes */
 263
 264 struct symtab;
 265 struct breakpoint;
 266 struct frame_info;
 267 struct gdbarch;
 268 struct value;
 269
 270 /* From main.c.  */
 271
 272 /* This really belong in utils.c (path-utils.c?), but it references some
 273    globals that are currently only available to main.c.  */
 274 extern char *relocate_gdb_directory (const char *initial, int flag);
 275
 276 \f
 277 /* Annotation stuff.  */
 278
 279 extern int annotation_level;    /* in stack.c */
 280 \f
 281
 282 /* From regex.c or libc.  BSD 4.4 declares this with the argument type as
 283    "const char *" in unistd.h, so we can't declare the argument
 284    as "char *".  */
 285
 286 extern char *re_comp (const char *);
 287
 288 /* From symfile.c */
 289
 290 extern void symbol_file_command (char *, int);
 291
 292 /* Remote targets may wish to use this as their load function.  */
 293 extern void generic_load (char *name, int from_tty);
 294
 295 /* Report on STREAM the performance of memory transfer operation,
 296    such as 'load'.
 297    DATA_COUNT is the number of bytes transferred.
 298    WRITE_COUNT is the number of separate write operations, or 0,
 299    if that information is not available.
 300    START_TIME is the time at which an operation was started.
 301    END_TIME is the time at which an operation ended.  */
 302 struct timeval;
 303 extern void print_transfer_performance (struct ui_file *stream,
 304                                         unsigned long data_count,
 305                                         unsigned long write_count,
 306                                         const struct timeval *start_time,
 307                                         const struct timeval *end_time);
 308
 309 /* From top.c */
 310
 311 typedef void initialize_file_ftype (void);
 312
 313 extern char *skip_quoted (char *);
 314
 315 extern char *gdb_readline (char *);
 316
 317 extern char *gdb_readline_wrapper (char *);
 318
 319 extern char *command_line_input (char *, int, char *);
 320
 321 extern void print_prompt (void);
 322
 323 extern int input_from_terminal_p (void);
 324
 325 extern int info_verbose;
 326
 327 /* From printcmd.c */
 328
 329 extern void set_next_address (struct gdbarch *, CORE_ADDR);
 330
 331 extern int print_address_symbolic (struct gdbarch *, CORE_ADDR,
 332                                    struct ui_file *, int, char *);
 333
 334 extern int build_address_symbolic (struct gdbarch *,
 335                                    CORE_ADDR addr,
 336                                    int do_demangle,
 337                                    char **name,
 338                                    int *offset,
 339                                    char **filename,
 340                                    int *line,
 341                                    int *unmapped);
 342
 343 extern void print_address (struct gdbarch *, CORE_ADDR, struct ui_file *);
 344 extern const char *pc_prefix (CORE_ADDR);
 345
 346 /* From source.c */
 347
 348 /* See openp function definition for their description.  */
 349 #define OPF_TRY_CWD_FIRST     0x01
 350 #define OPF_SEARCH_IN_PATH    0x02
 351 #define OPF_DISABLE_REALPATH  0x04
 352
 353 extern int openp (const char *, int, const char *, int, char **);
 354
 355 extern int source_full_path_of (const char *, char **);
 356
 357 extern void mod_path (char *, char **);
 358
 359 extern void add_path (char *, char **, int);
 360
 361 extern void directory_switch (char *, int);
 362
 363 extern char *source_path;
 364
 365 extern void init_source_path (void);
 366
 367 /* From exec.c */
 368
 369 /* Process memory area starting at ADDR with length SIZE.  Area is readable iff
 370    READ is non-zero, writable if WRITE is non-zero, executable if EXEC is
 371    non-zero.  Area is possibly changed against its original file based copy if
 372    MODIFIED is non-zero.  DATA is passed without changes from a caller.  */
 373
 374 typedef int (*find_memory_region_ftype) (CORE_ADDR addr, unsigned long size,
 375                                          int read, int write, int exec,
 376                                          int modified, void *data);
 377
 378 /* Take over the 'find_mapped_memory' vector from exec.c.  */
 379 extern void exec_set_find_memory_regions
 380   (int (*func) (find_memory_region_ftype func, void *data));
 381
 382 /* Possible lvalue types.  Like enum language, this should be in
 383    value.h, but needs to be here for the same reason.  */
 384
 385 enum lval_type
 386   {
 387     /* Not an lval.  */
 388     not_lval,
 389     /* In memory.  */
 390     lval_memory,
 391     /* In a register.  Registers are relative to a frame.  */
 392     lval_register,
 393     /* In a gdb internal variable.  */
 394     lval_internalvar,
 395     /* Part of a gdb internal variable (structure field).  */
 396     lval_internalvar_component,
 397     /* Value's bits are fetched and stored using functions provided by
 398        its creator.  */
 399     lval_computed
 400   };
 401
 402 /* Control types for commands */
 403
 404 enum misc_command_type
 405   {
 406     ok_command,
 407     end_command,
 408     else_command,
 409     nop_command
 410   };
 411
 412 enum command_control_type
 413   {
 414     simple_control,
 415     break_control,
 416     continue_control,
 417     while_control,
 418     if_control,
 419     commands_control,
 420     python_control,
 421     while_stepping_control,
 422     invalid_control
 423   };
 424
 425 /* Structure for saved commands lines
 426    (for breakpoints, defined commands, etc).  */
 427
 428 struct command_line
 429   {
 430     struct command_line *next;
 431     char *line;
 432     enum command_control_type control_type;
 433     /* The number of elements in body_list.  */
 434     int body_count;
 435     /* For composite commands, the nested lists of commands.  For
 436        example, for "if" command this will contain the then branch and
 437        the else branch, if that is available.  */
 438     struct command_line **body_list;
 439   };
 440
 441 extern struct command_line *read_command_lines (char *, int, int,
 442                                                 void (*)(char *, void *),
 443                                                 void *);
 444 extern struct command_line *read_command_lines_1 (char * (*) (void), int,
 445                                                   void (*)(char *, void *),
 446                                                   void *);
 447
 448 extern void free_command_lines (struct command_line **);
 449
 450 /* Parameters of the "info proc" command.  */
 451
 452 enum info_proc_what
 453   {
 454     /* Display the default cmdline, cwd and exe outputs.  */
 455     IP_MINIMAL,
 456
 457     /* Display `info proc mappings'.  */
 458     IP_MAPPINGS,
 459
 460     /* Display `info proc status'.  */
 461     IP_STATUS,
 462
 463     /* Display `info proc stat'.  */
 464     IP_STAT,
 465
 466     /* Display `info proc cmdline'.  */
 467     IP_CMDLINE,
 468
 469     /* Display `info proc exe'.  */
 470     IP_EXE,
 471
 472     /* Display `info proc cwd'.  */
 473     IP_CWD,
 474
 475     /* Display all of the above.  */
 476     IP_ALL
 477   };
 478
 479 /* String containing the current directory (what getwd would return).  */
 480
 481 extern char *current_directory;
 482
 483 /* Default radixes for input and output.  Only some values supported.  */
 484 extern unsigned input_radix;
 485 extern unsigned output_radix;
 486
 487 /* Possibilities for prettyprint parameters to routines which print
 488    things.  Like enum language, this should be in value.h, but needs
 489    to be here for the same reason.  FIXME:  If we can eliminate this
 490    as an arg to LA_VAL_PRINT, then we can probably move it back to
 491    value.h.  */
 492
 493 enum val_prettyprint
 494   {
 495     Val_no_prettyprint = 0,
 496     Val_prettyprint,
 497     /* Use the default setting which the user has specified.  */
 498     Val_pretty_default
 499   };
 500
 501 /* Optional native machine support.  Non-native (and possibly pure
 502    multi-arch) targets do not need a "nm.h" file.  This will be a
 503    symlink to one of the nm-*.h files, built by the `configure'
 504    script.  */
 505
 506 #ifdef GDB_NM_FILE
 507 #include "nm.h"
 508 #endif
 509
 510 /* Assume that fopen accepts the letter "b" in the mode string.
 511    It is demanded by ISO C9X, and should be supported on all
 512    platforms that claim to have a standard-conforming C library.  On
 513    true POSIX systems it will be ignored and have no effect.  There
 514    may still be systems without a standard-conforming C library where
 515    an ISO C9X compiler (GCC) is available.  Known examples are SunOS
 516    4.x and 4.3BSD.  This assumption means these systems are no longer
 517    supported.  */
 518 #ifndef FOPEN_RB
 519 # include "fopen-bin.h"
 520 #endif
 521
 522 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
 523    FIXME: Assumes 2's complement arithmetic.  */
 524
 525 #if !defined (UINT_MAX)
 526 #define UINT_MAX ((unsigned int)(~0))       /* 0xFFFFFFFF for 32-bits */
 527 #endif
 528
 529 #if !defined (INT_MAX)
 530 #define INT_MAX ((int)(UINT_MAX >> 1))      /* 0x7FFFFFFF for 32-bits */
 531 #endif
 532
 533 #if !defined (INT_MIN)
 534 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
 535 #endif
 536
 537 #if !defined (ULONG_MAX)
 538 #define ULONG_MAX ((unsigned long)(~0L))    /* 0xFFFFFFFF for 32-bits */
 539 #endif
 540
 541 #if !defined (LONG_MAX)
 542 #define LONG_MAX ((long)(ULONG_MAX >> 1))   /* 0x7FFFFFFF for 32-bits */
 543 #endif
 544
 545 #if !defined (ULONGEST_MAX)
 546 #define ULONGEST_MAX (~(ULONGEST)0)        /* 0xFFFFFFFFFFFFFFFF for 64-bits */
 547 #endif
 548
 549 #if !defined (LONGEST_MAX)                 /* 0x7FFFFFFFFFFFFFFF for 64-bits */
 550 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
 551 #endif
 552
 553 /* Convert a LONGEST to an int.  This is used in contexts (e.g. number of
 554    arguments to a function, number in a value history, register number, etc.)
 555    where the value must not be larger than can fit in an int.  */
 556
 557 extern int longest_to_int (LONGEST);
 558
 559 /* Utility macros to allocate typed memory.  Avoids errors like:
 560    struct foo *foo = xmalloc (sizeof struct bar); and memset (foo,
 561    sizeof (struct foo), 0).  */
 562 #define XZALLOC(TYPE) ((TYPE*) xzalloc (sizeof (TYPE)))
 563 #define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE)))
 564 #define XCALLOC(NMEMB, TYPE) ((TYPE*) xcalloc ((NMEMB), sizeof (TYPE)))
 565
 566 #include "common-utils.h"
 567
 568 /* List of known OS ABIs.  If you change this, make sure to update the
 569    table in osabi.c.  */
 570 enum gdb_osabi
 571 {
 572   GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info.  */
 573
 574   GDB_OSABI_UNKNOWN = 0,        /* keep this zero */
 575
 576   GDB_OSABI_SVR4,
 577   GDB_OSABI_HURD,
 578   GDB_OSABI_SOLARIS,
 579   GDB_OSABI_OSF1,
 580   GDB_OSABI_LINUX,
 581   GDB_OSABI_FREEBSD_AOUT,
 582   GDB_OSABI_FREEBSD_ELF,
 583   GDB_OSABI_NETBSD_AOUT,
 584   GDB_OSABI_NETBSD_ELF,
 585   GDB_OSABI_OPENBSD_ELF,
 586   GDB_OSABI_DRAGONFLY,
 587   GDB_OSABI_WINCE,
 588   GDB_OSABI_GO32,
 589   GDB_OSABI_IRIX,
 590   GDB_OSABI_INTERIX,
 591   GDB_OSABI_HPUX_ELF,
 592   GDB_OSABI_HPUX_SOM,
 593   GDB_OSABI_QNXNTO,
 594   GDB_OSABI_CYGWIN,
 595   GDB_OSABI_AIX,
 596   GDB_OSABI_DICOS,
 597   GDB_OSABI_DARWIN,
 598   GDB_OSABI_SYMBIAN,
 599   GDB_OSABI_OPENVMS,
 600   GDB_OSABI_LYNXOS178,
 601   GDB_OSABI_NEWLIB,
 602
 603   GDB_OSABI_INVALID             /* keep this last */
 604 };
 605
 606 /* Global functions from other, non-gdb GNU thingies.
 607    Libiberty thingies are no longer declared here.  We include libiberty.h
 608    above, instead.  */
 609
 610 /* From other system libraries */
 611
 612 #ifdef HAVE_STDDEF_H
 613 #include <stddef.h>
 614 #endif
 615
 616 #ifdef HAVE_STDLIB_H
 617 #include <stdlib.h>
 618 #endif
 619
 620
 621 #ifndef atof
 622 extern double atof (const char *);      /* X3.159-1989  4.10.1.1 */
 623 #endif
 624
 625 /* Various possibilities for alloca.  */
 626 #ifndef alloca
 627 #ifdef __GNUC__
 628 #define alloca __builtin_alloca
 629 #else /* Not GNU C */
 630 #ifdef HAVE_ALLOCA_H
 631 #include <alloca.h>
 632 #else
 633 #ifdef _AIX
 634 #pragma alloca
 635 #else
 636
 637 /* We need to be careful not to declare this in a way which conflicts with
 638    bison.  Bison never declares it as char *, but under various circumstances
 639    (like __hpux) we need to use void *.  */
 640 extern void *alloca ();
 641 #endif /* Not _AIX */
 642 #endif /* Not HAVE_ALLOCA_H */
 643 #endif /* Not GNU C */
 644 #endif /* alloca not defined */
 645
 646 /* Dynamic target-system-dependent parameters for GDB.  */
 647 #include "gdbarch.h"
 648
 649 /* Maximum size of a register.  Something small, but large enough for
 650    all known ISAs.  If it turns out to be too small, make it bigger.  */
 651
 652 enum { MAX_REGISTER_SIZE = 64 };
 653
 654 /* Static target-system-dependent parameters for GDB.  */
 655
 656 /* Number of bits in a char or unsigned char for the target machine.
 657    Just like CHAR_BIT in <limits.h> but describes the target machine.  */
 658 #if !defined (TARGET_CHAR_BIT)
 659 #define TARGET_CHAR_BIT 8
 660 #endif
 661
 662 /* If we picked up a copy of CHAR_BIT from a configuration file
 663    (which may get it by including <limits.h>) then use it to set
 664    the number of bits in a host char.  If not, use the same size
 665    as the target.  */
 666
 667 #if defined (CHAR_BIT)
 668 #define HOST_CHAR_BIT CHAR_BIT
 669 #else
 670 #define HOST_CHAR_BIT TARGET_CHAR_BIT
 671 #endif
 672
 673 /* In findvar.c.  */
 674
 675 extern LONGEST extract_signed_integer (const gdb_byte *, int,
 676                                        enum bfd_endian);
 677
 678 extern ULONGEST extract_unsigned_integer (const gdb_byte *, int,
 679                                           enum bfd_endian);
 680
 681 extern int extract_long_unsigned_integer (const gdb_byte *, int,
 682                                           enum bfd_endian, LONGEST *);
 683
 684 extern CORE_ADDR extract_typed_address (const gdb_byte *buf,
 685                                         struct type *type);
 686
 687 extern void store_signed_integer (gdb_byte *, int,
 688                                   enum bfd_endian, LONGEST);
 689
 690 extern void store_unsigned_integer (gdb_byte *, int,
 691                                     enum bfd_endian, ULONGEST);
 692
 693 extern void store_typed_address (gdb_byte *buf, struct type *type,
 694                                  CORE_ADDR addr);
 695
 696 \f
 697 /* From valops.c */
 698
 699 extern int watchdog;
 700
 701 /* Hooks for alternate command interfaces.  */
 702
 703 /* The name of the interpreter if specified on the command line.  */
 704 extern char *interpreter_p;
 705
 706 /* If a given interpreter matches INTERPRETER_P then it should update
 707    deprecated_command_loop_hook and deprecated_init_ui_hook with the
 708    per-interpreter implementation.  */
 709 /* FIXME: deprecated_command_loop_hook and deprecated_init_ui_hook
 710    should be moved here.  */
 711
 712 struct target_waitstatus;
 713 struct cmd_list_element;
 714
 715 extern void (*deprecated_pre_add_symbol_hook) (const char *);
 716 extern void (*deprecated_post_add_symbol_hook) (void);
 717 extern void (*selected_frame_level_changed_hook) (int);
 718 extern int (*deprecated_ui_loop_hook) (int signo);
 719 extern void (*deprecated_init_ui_hook) (char *argv0);
 720 extern void (*deprecated_command_loop_hook) (void);
 721 extern void (*deprecated_show_load_progress) (const char *section,
 722                                               unsigned long section_sent,
 723                                               unsigned long section_size,
 724                                               unsigned long total_sent,
 725                                               unsigned long total_size);
 726 extern void (*deprecated_print_frame_info_listing_hook) (struct symtab * s,
 727                                                          int line,
 728                                                          int stopline,
 729                                                          int noerror);
 730 extern int (*deprecated_query_hook) (const char *, va_list)
 731      ATTRIBUTE_FPTR_PRINTF(1,0);
 732 extern void (*deprecated_warning_hook) (const char *, va_list)
 733      ATTRIBUTE_FPTR_PRINTF(1,0);
 734 extern void (*deprecated_flush_hook) (struct ui_file * stream);
 735 extern void (*deprecated_interactive_hook) (void);
 736 extern void (*deprecated_readline_begin_hook) (char *, ...)
 737      ATTRIBUTE_FPTR_PRINTF_1;
 738 extern char *(*deprecated_readline_hook) (char *);
 739 extern void (*deprecated_readline_end_hook) (void);
 740 extern void (*deprecated_register_changed_hook) (int regno);
 741 extern void (*deprecated_context_hook) (int);
 742 extern ptid_t (*deprecated_target_wait_hook) (ptid_t ptid,
 743                                               struct target_waitstatus *status,
 744                                               int options);
 745
 746 extern void (*deprecated_attach_hook) (void);
 747 extern void (*deprecated_detach_hook) (void);
 748 extern void (*deprecated_call_command_hook) (struct cmd_list_element * c,
 749                                              char *cmd, int from_tty);
 750
 751 extern void (*deprecated_set_hook) (struct cmd_list_element * c);
 752
 753 extern int (*deprecated_ui_load_progress_hook) (const char *section,
 754                                                 unsigned long num);
 755
 756 /* Inhibit window interface if non-zero.  */
 757
 758 extern int use_windows;
 759
 760 /* Provide default definitions of PIDGET, TIDGET, and MERGEPID.
 761    The name ``TIDGET'' is a historical accident.  Many uses of TIDGET
 762    in the code actually refer to a lightweight process id, i.e,
 763    something that can be considered a process id in its own right for
 764    certain purposes.  */
 765
 766 #ifndef PIDGET
 767 #define PIDGET(PTID) (ptid_get_pid (PTID))
 768 #define TIDGET(PTID) (ptid_get_lwp (PTID))
 769 #define MERGEPID(PID, TID) ptid_build (PID, TID, 0)
 770 #endif
 771
 772 /* Define well known filenos if the system does not define them.  */
 773 #ifndef STDIN_FILENO
 774 #define STDIN_FILENO   0
 775 #endif
 776 #ifndef STDOUT_FILENO
 777 #define STDOUT_FILENO  1
 778 #endif
 779 #ifndef STDERR_FILENO
 780 #define STDERR_FILENO  2
 781 #endif
 782
 783 /* If this definition isn't overridden by the header files, assume
 784    that isatty and fileno exist on this system.  */
 785 #ifndef ISATTY
 786 #define ISATTY(FP)      (isatty (fileno (FP)))
 787 #endif
 788
 789 /* A width that can achieve a better legibility for GDB MI mode.  */
 790 #define GDB_MI_MSG_WIDTH  80
 791
 792 /* From progspace.c */
 793
 794 extern void initialize_progspace (void);
 795 extern void initialize_inferiors (void);
 796
 797 /* For DragonFly kgdb */
 798 extern int kernel_debugger;
 799
 800 /* Special block numbers */
 801
 802 enum block_enum
 803 {
 804   GLOBAL_BLOCK = 0,
 805   STATIC_BLOCK = 1,
 806   FIRST_LOCAL_BLOCK = 2
 807 };
 808
 809 #include "utils.h"
 810
 811 #endif /* #ifndef DEFS_H */