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 #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 #define OPF_TRY_CWD_FIRST     0x01
 349 #define OPF_SEARCH_IN_PATH    0x02
 350
 351 extern int openp (const char *, int, const char *, int, char **);
 352
 353 extern int source_full_path_of (const char *, char **);
 354
 355 extern void mod_path (char *, char **);
 356
 357 extern void add_path (char *, char **, int);
 358
 359 extern void directory_switch (char *, int);
 360
 361 extern char *source_path;
 362
 363 extern void init_source_path (void);
 364
 365 /* From exec.c */
 366
 367 /* Process memory area starting at ADDR with length SIZE.  Area is readable iff
 368    READ is non-zero, writable if WRITE is non-zero, executable if EXEC is
 369    non-zero.  Area is possibly changed against its original file based copy if
 370    MODIFIED is non-zero.  DATA is passed without changes from a caller.  */
 371
 372 typedef int (*find_memory_region_ftype) (CORE_ADDR addr, unsigned long size,
 373                                          int read, int write, int exec,
 374                                          int modified, void *data);
 375
 376 /* Take over the 'find_mapped_memory' vector from exec.c.  */
 377 extern void exec_set_find_memory_regions
 378   (int (*func) (find_memory_region_ftype func, void *data));
 379
 380 /* Possible lvalue types.  Like enum language, this should be in
 381    value.h, but needs to be here for the same reason.  */
 382
 383 enum lval_type
 384   {
 385     /* Not an lval.  */
 386     not_lval,
 387     /* In memory.  */
 388     lval_memory,
 389     /* In a register.  Registers are relative to a frame.  */
 390     lval_register,
 391     /* In a gdb internal variable.  */
 392     lval_internalvar,
 393     /* Part of a gdb internal variable (structure field).  */
 394     lval_internalvar_component,
 395     /* Value's bits are fetched and stored using functions provided by
 396        its creator.  */
 397     lval_computed
 398   };
 399
 400 /* Control types for commands */
 401
 402 enum misc_command_type
 403   {
 404     ok_command,
 405     end_command,
 406     else_command,
 407     nop_command
 408   };
 409
 410 enum command_control_type
 411   {
 412     simple_control,
 413     break_control,
 414     continue_control,
 415     while_control,
 416     if_control,
 417     commands_control,
 418     python_control,
 419     while_stepping_control,
 420     invalid_control
 421   };
 422
 423 /* Structure for saved commands lines
 424    (for breakpoints, defined commands, etc).  */
 425
 426 struct command_line
 427   {
 428     struct command_line *next;
 429     char *line;
 430     enum command_control_type control_type;
 431     /* The number of elements in body_list.  */
 432     int body_count;
 433     /* For composite commands, the nested lists of commands.  For
 434        example, for "if" command this will contain the then branch and
 435        the else branch, if that is available.  */
 436     struct command_line **body_list;
 437   };
 438
 439 extern struct command_line *read_command_lines (char *, int, int,
 440                                                 void (*)(char *, void *),
 441                                                 void *);
 442 extern struct command_line *read_command_lines_1 (char * (*) (void), int,
 443                                                   void (*)(char *, void *),
 444                                                   void *);
 445
 446 extern void free_command_lines (struct command_line **);
 447
 448 /* Parameters of the "info proc" command.  */
 449
 450 enum info_proc_what
 451   {
 452     /* Display the default cmdline, cwd and exe outputs.  */
 453     IP_MINIMAL,
 454
 455     /* Display `info proc mappings'.  */
 456     IP_MAPPINGS,
 457
 458     /* Display `info proc status'.  */
 459     IP_STATUS,
 460
 461     /* Display `info proc stat'.  */
 462     IP_STAT,
 463
 464     /* Display `info proc cmdline'.  */
 465     IP_CMDLINE,
 466
 467     /* Display `info proc exe'.  */
 468     IP_EXE,
 469
 470     /* Display `info proc cwd'.  */
 471     IP_CWD,
 472
 473     /* Display all of the above.  */
 474     IP_ALL
 475   };
 476
 477 /* String containing the current directory (what getwd would return).  */
 478
 479 extern char *current_directory;
 480
 481 /* Default radixes for input and output.  Only some values supported.  */
 482 extern unsigned input_radix;
 483 extern unsigned output_radix;
 484
 485 /* Possibilities for prettyprint parameters to routines which print
 486    things.  Like enum language, this should be in value.h, but needs
 487    to be here for the same reason.  FIXME:  If we can eliminate this
 488    as an arg to LA_VAL_PRINT, then we can probably move it back to
 489    value.h.  */
 490
 491 enum val_prettyprint
 492   {
 493     Val_no_prettyprint = 0,
 494     Val_prettyprint,
 495     /* Use the default setting which the user has specified.  */
 496     Val_pretty_default
 497   };
 498
 499 /* Optional native machine support.  Non-native (and possibly pure
 500    multi-arch) targets do not need a "nm.h" file.  This will be a
 501    symlink to one of the nm-*.h files, built by the `configure'
 502    script.  */
 503
 504 #ifdef GDB_NM_FILE
 505 #include "nm.h"
 506 #endif
 507
 508 /* Assume that fopen accepts the letter "b" in the mode string.
 509    It is demanded by ISO C9X, and should be supported on all
 510    platforms that claim to have a standard-conforming C library.  On
 511    true POSIX systems it will be ignored and have no effect.  There
 512    may still be systems without a standard-conforming C library where
 513    an ISO C9X compiler (GCC) is available.  Known examples are SunOS
 514    4.x and 4.3BSD.  This assumption means these systems are no longer
 515    supported.  */
 516 #ifndef FOPEN_RB
 517 # include "fopen-bin.h"
 518 #endif
 519
 520 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
 521    FIXME: Assumes 2's complement arithmetic.  */
 522
 523 #if !defined (UINT_MAX)
 524 #define UINT_MAX ((unsigned int)(~0))       /* 0xFFFFFFFF for 32-bits */
 525 #endif
 526
 527 #if !defined (INT_MAX)
 528 #define INT_MAX ((int)(UINT_MAX >> 1))      /* 0x7FFFFFFF for 32-bits */
 529 #endif
 530
 531 #if !defined (INT_MIN)
 532 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
 533 #endif
 534
 535 #if !defined (ULONG_MAX)
 536 #define ULONG_MAX ((unsigned long)(~0L))    /* 0xFFFFFFFF for 32-bits */
 537 #endif
 538
 539 #if !defined (LONG_MAX)
 540 #define LONG_MAX ((long)(ULONG_MAX >> 1))   /* 0x7FFFFFFF for 32-bits */
 541 #endif
 542
 543 #if !defined (ULONGEST_MAX)
 544 #define ULONGEST_MAX (~(ULONGEST)0)        /* 0xFFFFFFFFFFFFFFFF for 64-bits */
 545 #endif
 546
 547 #if !defined (LONGEST_MAX)                 /* 0x7FFFFFFFFFFFFFFF for 64-bits */
 548 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
 549 #endif
 550
 551 /* Convert a LONGEST to an int.  This is used in contexts (e.g. number of
 552    arguments to a function, number in a value history, register number, etc.)
 553    where the value must not be larger than can fit in an int.  */
 554
 555 extern int longest_to_int (LONGEST);
 556
 557 /* Utility macros to allocate typed memory.  Avoids errors like:
 558    struct foo *foo = xmalloc (sizeof struct bar); and memset (foo,
 559    sizeof (struct foo), 0).  */
 560 #define XZALLOC(TYPE) ((TYPE*) xzalloc (sizeof (TYPE)))
 561 #define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE)))
 562 #define XCALLOC(NMEMB, TYPE) ((TYPE*) xcalloc ((NMEMB), sizeof (TYPE)))
 563
 564 #include "common-utils.h"
 565
 566 /* List of known OS ABIs.  If you change this, make sure to update the
 567    table in osabi.c.  */
 568 enum gdb_osabi
 569 {
 570   GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info.  */
 571
 572   GDB_OSABI_UNKNOWN = 0,        /* keep this zero */
 573
 574   GDB_OSABI_SVR4,
 575   GDB_OSABI_HURD,
 576   GDB_OSABI_SOLARIS,
 577   GDB_OSABI_OSF1,
 578   GDB_OSABI_LINUX,
 579   GDB_OSABI_FREEBSD_AOUT,
 580   GDB_OSABI_FREEBSD_ELF,
 581   GDB_OSABI_NETBSD_AOUT,
 582   GDB_OSABI_NETBSD_ELF,
 583   GDB_OSABI_OPENBSD_ELF,
 584   GDB_OSABI_WINCE,
 585   GDB_OSABI_GO32,
 586   GDB_OSABI_IRIX,
 587   GDB_OSABI_INTERIX,
 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_command_loop_hook and deprecated_init_ui_hook with the
 705    per-interpreter implementation.  */
 706 /* FIXME: deprecated_command_loop_hook and deprecated_init_ui_hook
 707    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_command_loop_hook) (void);
 718 extern void (*deprecated_show_load_progress) (const char *section,
 719                                               unsigned long section_sent,
 720                                               unsigned long section_size,
 721                                               unsigned long total_sent,
 722                                               unsigned long total_size);
 723 extern void (*deprecated_print_frame_info_listing_hook) (struct symtab * s,
 724                                                          int line,
 725                                                          int stopline,
 726                                                          int noerror);
 727 extern int (*deprecated_query_hook) (const char *, va_list)
 728      ATTRIBUTE_FPTR_PRINTF(1,0);
 729 extern void (*deprecated_warning_hook) (const char *, va_list)
 730      ATTRIBUTE_FPTR_PRINTF(1,0);
 731 extern void (*deprecated_flush_hook) (struct ui_file * stream);
 732 extern void (*deprecated_interactive_hook) (void);
 733 extern void (*deprecated_readline_begin_hook) (char *, ...)
 734      ATTRIBUTE_FPTR_PRINTF_1;
 735 extern char *(*deprecated_readline_hook) (char *);
 736 extern void (*deprecated_readline_end_hook) (void);
 737 extern void (*deprecated_register_changed_hook) (int regno);
 738 extern void (*deprecated_context_hook) (int);
 739 extern ptid_t (*deprecated_target_wait_hook) (ptid_t ptid,
 740                                               struct target_waitstatus *status,
 741                                               int options);
 742
 743 extern void (*deprecated_attach_hook) (void);
 744 extern void (*deprecated_detach_hook) (void);
 745 extern void (*deprecated_call_command_hook) (struct cmd_list_element * c,
 746                                              char *cmd, int from_tty);
 747
 748 extern void (*deprecated_set_hook) (struct cmd_list_element * c);
 749
 750 extern int (*deprecated_ui_load_progress_hook) (const char *section,
 751                                                 unsigned long num);
 752
 753 /* Inhibit window interface if non-zero.  */
 754
 755 extern int use_windows;
 756
 757 /* Provide default definitions of PIDGET, TIDGET, and MERGEPID.
 758    The name ``TIDGET'' is a historical accident.  Many uses of TIDGET
 759    in the code actually refer to a lightweight process id, i.e,
 760    something that can be considered a process id in its own right for
 761    certain purposes.  */
 762
 763 #ifndef PIDGET
 764 #define PIDGET(PTID) (ptid_get_pid (PTID))
 765 #define TIDGET(PTID) (ptid_get_lwp (PTID))
 766 #define MERGEPID(PID, TID) ptid_build (PID, TID, 0)
 767 #endif
 768
 769 /* Define well known filenos if the system does not define them.  */
 770 #ifndef STDIN_FILENO
 771 #define STDIN_FILENO   0
 772 #endif
 773 #ifndef STDOUT_FILENO
 774 #define STDOUT_FILENO  1
 775 #endif
 776 #ifndef STDERR_FILENO
 777 #define STDERR_FILENO  2
 778 #endif
 779
 780 /* If this definition isn't overridden by the header files, assume
 781    that isatty and fileno exist on this system.  */
 782 #ifndef ISATTY
 783 #define ISATTY(FP)      (isatty (fileno (FP)))
 784 #endif
 785
 786 /* A width that can achieve a better legibility for GDB MI mode.  */
 787 #define GDB_MI_MSG_WIDTH  80
 788
 789 /* From progspace.c */
 790
 791 extern void initialize_progspace (void);
 792 extern void initialize_inferiors (void);
 793
 794 /* Special block numbers */
 795
 796 enum block_enum
 797 {
 798   GLOBAL_BLOCK = 0,
 799   STATIC_BLOCK = 1,
 800   FIRST_LOCAL_BLOCK = 2
 801 };
 802
 803 #include "utils.h"
 804
 805 #endif /* #ifndef DEFS_H */