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