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) 1986-2016 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 "common-defs.h"
  29
  30 #include <sys/types.h>
  31 #include <limits.h>
  32
  33 /* The libdecnumber library, on which GDB depends, includes a header file
  34    called gstdint.h instead of relying directly on stdint.h.  GDB, on the
  35    other hand, includes stdint.h directly, relying on the fact that gnulib
  36    generates a copy if the system doesn't provide one or if it is missing
  37    some features.  Unfortunately, gstdint.h and stdint.h cannot be included
  38    at the same time, which may happen when we include a file from
  39    libdecnumber.
  40
  41    The following macro definition effectively prevents the inclusion of
  42    gstdint.h, as all the definitions it provides are guarded against
  43    the GCC_GENERATED_STDINT_H macro.  We already have gnulib/stdint.h
  44    included, so it's ok to blank out gstdint.h.  */
  45 #define GCC_GENERATED_STDINT_H 1
  46
  47 #include <unistd.h>
  48
  49 #include <fcntl.h>
  50
  51 #include "gdb_wchar.h"
  52
  53 #include "ui-file.h"
  54
  55 #include "host-defs.h"
  56 #include "common/enum-flags.h"
  57
  58 /* Scope types enumerator.  List the types of scopes the compiler will
  59    accept.  */
  60
  61 enum compile_i_scope_types
  62   {
  63     COMPILE_I_INVALID_SCOPE,
  64
  65     /* A simple scope.  Wrap an expression into a simple scope that
  66        takes no arguments, returns no value, and uses the generic
  67        function name "_gdb_expr". */
  68
  69     COMPILE_I_SIMPLE_SCOPE,
  70
  71     /* Do not wrap the expression,
  72        it has to provide function "_gdb_expr" on its own.  */
  73     COMPILE_I_RAW_SCOPE,
  74
  75     /* A printable expression scope.  Wrap an expression into a scope
  76        suitable for the "compile print" command.  It uses the generic
  77        function name "_gdb_expr".  COMPILE_I_PRINT_ADDRESS_SCOPE variant
  78        is the usual one, taking address of the object.
  79        COMPILE_I_PRINT_VALUE_SCOPE is needed for arrays where the array
  80        name already specifies its address.  See get_out_value_type.  */
  81     COMPILE_I_PRINT_ADDRESS_SCOPE,
  82     COMPILE_I_PRINT_VALUE_SCOPE,
  83   };
  84
  85 /* Just in case they're not defined in stdio.h.  */
  86
  87 #ifndef SEEK_SET
  88 #define SEEK_SET 0
  89 #endif
  90 #ifndef SEEK_CUR
  91 #define SEEK_CUR 1
  92 #endif
  93
  94 /* The O_BINARY flag is defined in fcntl.h on some non-Posix platforms.
  95    It is used as an access modifier in calls to open(), where it acts
  96    similarly to the "b" character in fopen()'s MODE argument.  On Posix
  97    platforms it should be a no-op, so it is defined as 0 here.  This
  98    ensures that the symbol may be used freely elsewhere in gdb.  */
  99
 100 #ifndef O_BINARY
 101 #define O_BINARY 0
 102 #endif
 103
 104 #include "hashtab.h"
 105
 106 /* * Enable dbx commands if set.  */
 107 extern int dbx_commands;
 108
 109 /* * System root path, used to find libraries etc.  */
 110 extern char *gdb_sysroot;
 111
 112 /* * GDB datadir, used to store data files.  */
 113 extern char *gdb_datadir;
 114
 115 /* * If non-NULL, the possibly relocated path to python's "lib" directory
 116    specified with --with-python.  */
 117 extern char *python_libdir;
 118
 119 /* * Search path for separate debug files.  */
 120 extern char *debug_file_directory;
 121
 122 /* GDB's SIGINT handler basically sets a flag; code that might take a
 123    long time before it gets back to the event loop, and which ought to
 124    be interruptible, checks this flag using the QUIT macro, which, if
 125    GDB has the terminal, throws a quit exception.
 126
 127    In addition to setting a flag, the SIGINT handler also marks a
 128    select/poll-able file descriptor as read-ready.  That is used by
 129    interruptible_select in order to support interrupting blocking I/O
 130    in a race-free manner.
 131
 132    These functions use the extension_language_ops API to allow extension
 133    language(s) and GDB SIGINT handling to coexist seamlessly.  */
 134
 135 /* * Evaluate to non-zero if the quit flag is set, zero otherwise.  This
 136    will clear the quit flag as a side effect.  */
 137 extern int check_quit_flag (void);
 138 /* * Set the quit flag.  */
 139 extern void set_quit_flag (void);
 140
 141 /* The current quit handler (and its type).  This is called from the
 142    QUIT macro.  See default_quit_handler below for default behavior.
 143    Parts of GDB temporarily override this to e.g., completely suppress
 144    Ctrl-C because it would not be safe to throw.  E.g., normally, you
 145    wouldn't want to quit between a RSP command and its response, as
 146    that would break the communication with the target, but you may
 147    still want to intercept the Ctrl-C and offer to disconnect if the
 148    user presses Ctrl-C multiple times while the target is stuck
 149    waiting for the wedged remote stub.  */
 150 typedef void (quit_handler_ftype) (void);
 151 extern quit_handler_ftype *quit_handler;
 152
 153 /* Override the current quit handler.  Sets NEW_QUIT_HANDLER as
 154    current quit handler, and installs a cleanup that when run restores
 155    the previous quit handler.  */
 156 struct cleanup *
 157   make_cleanup_override_quit_handler (quit_handler_ftype *new_quit_handler);
 158
 159 /* The default quit handler.  Checks whether Ctrl-C was pressed, and
 160    if so:
 161
 162      - If GDB owns the terminal, throws a quit exception.
 163
 164      - If GDB does not own the terminal, forwards the Ctrl-C to the
 165        target.
 166 */
 167 extern void default_quit_handler (void);
 168
 169 /* Flag that function quit should call quit_force.  */
 170 extern volatile int sync_quit_force_run;
 171
 172 extern void quit (void);
 173
 174 /* Helper for the QUIT macro.  */
 175
 176 extern void maybe_quit (void);
 177
 178 /* Check whether a Ctrl-C was typed, and if so, call the current quit
 179    handler.  */
 180 #define QUIT maybe_quit ()
 181
 182 /* Set the serial event associated with the quit flag.  */
 183 extern void quit_serial_event_set (void);
 184
 185 /* Clear the serial event associated with the quit flag.  */
 186 extern void quit_serial_event_clear (void);
 187
 188 /* * Languages represented in the symbol table and elsewhere.
 189    This should probably be in language.h, but since enum's can't
 190    be forward declared to satisfy opaque references before their
 191    actual definition, needs to be here.
 192
 193    The constants here are in priority order.  In particular,
 194    demangling is attempted according to this order.
 195
 196    Note that there's ambiguity between the mangling schemes of some of
 197    these languages, so some symbols could be successfully demangled by
 198    several languages.  For that reason, the constants here are sorted
 199    in the order we'll attempt demangling them.  For example: Java and
 200    Rust use C++ mangling, so must come after C++; Ada must come last
 201    (see ada_sniff_from_mangled_name).  */
 202
 203 enum language
 204   {
 205     language_unknown,           /* Language not known */
 206     language_auto,              /* Placeholder for automatic setting */
 207     language_c,                 /* C */
 208     language_objc,              /* Objective-C */
 209     language_cplus,             /* C++ */
 210     language_java,              /* Java */
 211     language_d,                 /* D */
 212     language_go,                /* Go */
 213     language_fortran,           /* Fortran */
 214     language_m2,                /* Modula-2 */
 215     language_asm,               /* Assembly language */
 216     language_pascal,            /* Pascal */
 217     language_opencl,            /* OpenCL */
 218     language_rust,              /* Rust */
 219     language_minimal,           /* All other languages, minimal support only */
 220     language_ada,               /* Ada */
 221     nr_languages
 222   };
 223
 224 /* The number of bits needed to represent all languages, with enough
 225    padding to allow for reasonable growth.  */
 226 #define LANGUAGE_BITS 5
 227 gdb_static_assert (nr_languages <= (1 << LANGUAGE_BITS));
 228
 229 enum precision_type
 230   {
 231     single_precision,
 232     double_precision,
 233     unspecified_precision
 234   };
 235
 236 /* * A generic, not quite boolean, enumeration.  This is used for
 237    set/show commands in which the options are on/off/automatic.  */
 238 enum auto_boolean
 239 {
 240   AUTO_BOOLEAN_TRUE,
 241   AUTO_BOOLEAN_FALSE,
 242   AUTO_BOOLEAN_AUTO
 243 };
 244
 245 /* * Potential ways that a function can return a value of a given
 246    type.  */
 247
 248 enum return_value_convention
 249 {
 250   /* * Where the return value has been squeezed into one or more
 251      registers.  */
 252   RETURN_VALUE_REGISTER_CONVENTION,
 253   /* * Commonly known as the "struct return convention".  The caller
 254      passes an additional hidden first parameter to the caller.  That
 255      parameter contains the address at which the value being returned
 256      should be stored.  While typically, and historically, used for
 257      large structs, this is convention is applied to values of many
 258      different types.  */
 259   RETURN_VALUE_STRUCT_CONVENTION,
 260   /* * Like the "struct return convention" above, but where the ABI
 261      guarantees that the called function stores the address at which
 262      the value being returned is stored in a well-defined location,
 263      such as a register or memory slot in the stack frame.  Don't use
 264      this if the ABI doesn't explicitly guarantees this.  */
 265   RETURN_VALUE_ABI_RETURNS_ADDRESS,
 266   /* * Like the "struct return convention" above, but where the ABI
 267      guarantees that the address at which the value being returned is
 268      stored will be available in a well-defined location, such as a
 269      register or memory slot in the stack frame.  Don't use this if
 270      the ABI doesn't explicitly guarantees this.  */
 271   RETURN_VALUE_ABI_PRESERVES_ADDRESS,
 272 };
 273
 274 /* Needed for various prototypes */
 275
 276 struct symtab;
 277 struct breakpoint;
 278 struct frame_info;
 279 struct gdbarch;
 280 struct value;
 281
 282 /* From main.c.  */
 283
 284 /* This really belong in utils.c (path-utils.c?), but it references some
 285    globals that are currently only available to main.c.  */
 286 extern char *relocate_gdb_directory (const char *initial, int flag);
 287
 288 \f
 289 /* Annotation stuff.  */
 290
 291 extern int annotation_level;    /* in stack.c */
 292 \f
 293
 294 /* From regex.c or libc.  BSD 4.4 declares this with the argument type as
 295    "const char *" in unistd.h, so we can't declare the argument
 296    as "char *".  */
 297
 298 EXTERN_C char *re_comp (const char *);
 299
 300 /* From symfile.c */
 301
 302 extern void symbol_file_command (char *, int);
 303
 304 /* * Remote targets may wish to use this as their load function.  */
 305 extern void generic_load (const char *name, int from_tty);
 306
 307 /* * Report on STREAM the performance of memory transfer operation,
 308    such as 'load'.
 309    @param DATA_COUNT is the number of bytes transferred.
 310    @param WRITE_COUNT is the number of separate write operations, or 0,
 311    if that information is not available.
 312    @param START_TIME is the time at which an operation was started.
 313    @param END_TIME is the time at which an operation ended.  */
 314 struct timeval;
 315 extern void print_transfer_performance (struct ui_file *stream,
 316                                         unsigned long data_count,
 317                                         unsigned long write_count,
 318                                         const struct timeval *start_time,
 319                                         const struct timeval *end_time);
 320
 321 /* From top.c */
 322
 323 typedef void initialize_file_ftype (void);
 324
 325 extern char *gdb_readline_wrapper (const char *);
 326
 327 extern char *command_line_input (const char *, int, char *);
 328
 329 extern void print_prompt (void);
 330
 331 struct ui;
 332
 333 extern int input_interactive_p (struct ui *);
 334
 335 extern int info_verbose;
 336
 337 /* From printcmd.c */
 338
 339 extern void set_next_address (struct gdbarch *, CORE_ADDR);
 340
 341 extern int print_address_symbolic (struct gdbarch *, CORE_ADDR,
 342                                    struct ui_file *, int, char *);
 343
 344 extern int build_address_symbolic (struct gdbarch *,
 345                                    CORE_ADDR addr,
 346                                    int do_demangle,
 347                                    char **name,
 348                                    int *offset,
 349                                    char **filename,
 350                                    int *line,
 351                                    int *unmapped);
 352
 353 extern void print_address (struct gdbarch *, CORE_ADDR, struct ui_file *);
 354 extern const char *pc_prefix (CORE_ADDR);
 355
 356 /* From source.c */
 357
 358 /* See openp function definition for their description.  */
 359 #define OPF_TRY_CWD_FIRST     0x01
 360 #define OPF_SEARCH_IN_PATH    0x02
 361 #define OPF_RETURN_REALPATH   0x04
 362
 363 extern int openp (const char *, int, const char *, int, char **);
 364
 365 extern int source_full_path_of (const char *, char **);
 366
 367 extern void mod_path (char *, char **);
 368
 369 extern void add_path (char *, char **, int);
 370
 371 extern void directory_switch (char *, int);
 372
 373 extern char *source_path;
 374
 375 extern void init_source_path (void);
 376
 377 /* From exec.c */
 378
 379 /* * Process memory area starting at ADDR with length SIZE.  Area is
 380    readable iff READ is non-zero, writable if WRITE is non-zero,
 381    executable if EXEC is non-zero.  Area is possibly changed against
 382    its original file based copy if MODIFIED is non-zero.  DATA is
 383    passed without changes from a caller.  */
 384
 385 typedef int (*find_memory_region_ftype) (CORE_ADDR addr, unsigned long size,
 386                                          int read, int write, int exec,
 387                                          int modified, void *data);
 388
 389 /* * Possible lvalue types.  Like enum language, this should be in
 390    value.h, but needs to be here for the same reason.  */
 391
 392 enum lval_type
 393   {
 394     /* * Not an lval.  */
 395     not_lval,
 396     /* * In memory.  */
 397     lval_memory,
 398     /* * In a register.  Registers are relative to a frame.  */
 399     lval_register,
 400     /* * In a gdb internal variable.  */
 401     lval_internalvar,
 402     /* * Value encapsulates a callable defined in an extension language.  */
 403     lval_xcallable,
 404     /* * Part of a gdb internal variable (structure field).  */
 405     lval_internalvar_component,
 406     /* * Value's bits are fetched and stored using functions provided
 407        by its creator.  */
 408     lval_computed
 409   };
 410
 411 /* * Control types for commands.  */
 412
 413 enum misc_command_type
 414   {
 415     ok_command,
 416     end_command,
 417     else_command,
 418     nop_command
 419   };
 420
 421 enum command_control_type
 422   {
 423     simple_control,
 424     break_control,
 425     continue_control,
 426     while_control,
 427     if_control,
 428     commands_control,
 429     python_control,
 430     compile_control,
 431     guile_control,
 432     while_stepping_control,
 433     invalid_control
 434   };
 435
 436 /* * Structure for saved commands lines (for breakpoints, defined
 437    commands, etc).  */
 438
 439 struct command_line
 440   {
 441     struct command_line *next;
 442     char *line;
 443     enum command_control_type control_type;
 444     union
 445       {
 446         struct
 447           {
 448             enum compile_i_scope_types scope;
 449             void *scope_data;
 450           }
 451         compile;
 452       }
 453     control_u;
 454     /* * The number of elements in body_list.  */
 455     int body_count;
 456     /* * For composite commands, the nested lists of commands.  For
 457        example, for "if" command this will contain the then branch and
 458        the else branch, if that is available.  */
 459     struct command_line **body_list;
 460   };
 461
 462 extern struct command_line *read_command_lines (char *, int, int,
 463                                                 void (*)(char *, void *),
 464                                                 void *);
 465 extern struct command_line *read_command_lines_1 (char * (*) (void), int,
 466                                                   void (*)(char *, void *),
 467                                                   void *);
 468
 469 extern void free_command_lines (struct command_line **);
 470
 471 /* * Parameters of the "info proc" command.  */
 472
 473 enum info_proc_what
 474   {
 475     /* * Display the default cmdline, cwd and exe outputs.  */
 476     IP_MINIMAL,
 477
 478     /* * Display `info proc mappings'.  */
 479     IP_MAPPINGS,
 480
 481     /* * Display `info proc status'.  */
 482     IP_STATUS,
 483
 484     /* * Display `info proc stat'.  */
 485     IP_STAT,
 486
 487     /* * Display `info proc cmdline'.  */
 488     IP_CMDLINE,
 489
 490     /* * Display `info proc exe'.  */
 491     IP_EXE,
 492
 493     /* * Display `info proc cwd'.  */
 494     IP_CWD,
 495
 496     /* * Display all of the above.  */
 497     IP_ALL
 498   };
 499
 500 /* * String containing the current directory (what getwd would return).  */
 501
 502 extern char *current_directory;
 503
 504 /* * Default radixes for input and output.  Only some values supported.  */
 505 extern unsigned input_radix;
 506 extern unsigned output_radix;
 507
 508 /* * Possibilities for prettyformat parameters to routines which print
 509    things.  Like enum language, this should be in value.h, but needs
 510    to be here for the same reason.  FIXME:  If we can eliminate this
 511    as an arg to LA_VAL_PRINT, then we can probably move it back to
 512    value.h.  */
 513
 514 enum val_prettyformat
 515   {
 516     Val_no_prettyformat = 0,
 517     Val_prettyformat,
 518     /* * Use the default setting which the user has specified.  */
 519     Val_prettyformat_default
 520   };
 521
 522 /* * Optional native machine support.  Non-native (and possibly pure
 523    multi-arch) targets do not need a "nm.h" file.  This will be a
 524    symlink to one of the nm-*.h files, built by the `configure'
 525    script.  */
 526
 527 #ifdef GDB_NM_FILE
 528 #include "nm.h"
 529 #endif
 530
 531 /* Assume that fopen accepts the letter "b" in the mode string.
 532    It is demanded by ISO C9X, and should be supported on all
 533    platforms that claim to have a standard-conforming C library.  On
 534    true POSIX systems it will be ignored and have no effect.  There
 535    may still be systems without a standard-conforming C library where
 536    an ISO C9X compiler (GCC) is available.  Known examples are SunOS
 537    4.x and 4.3BSD.  This assumption means these systems are no longer
 538    supported.  */
 539 #ifndef FOPEN_RB
 540 # include "fopen-bin.h"
 541 #endif
 542
 543 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
 544    FIXME: Assumes 2's complement arithmetic.  */
 545
 546 #if !defined (UINT_MAX)
 547 #define UINT_MAX ((unsigned int)(~0))       /* 0xFFFFFFFF for 32-bits */
 548 #endif
 549
 550 #if !defined (INT_MAX)
 551 #define INT_MAX ((int)(UINT_MAX >> 1))      /* 0x7FFFFFFF for 32-bits */
 552 #endif
 553
 554 #if !defined (INT_MIN)
 555 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
 556 #endif
 557
 558 #if !defined (ULONG_MAX)
 559 #define ULONG_MAX ((unsigned long)(~0L))    /* 0xFFFFFFFF for 32-bits */
 560 #endif
 561
 562 #if !defined (LONG_MAX)
 563 #define LONG_MAX ((long)(ULONG_MAX >> 1))   /* 0x7FFFFFFF for 32-bits */
 564 #endif
 565
 566 #if !defined (ULONGEST_MAX)
 567 #define ULONGEST_MAX (~(ULONGEST)0)        /* 0xFFFFFFFFFFFFFFFF for 64-bits */
 568 #endif
 569
 570 #if !defined (LONGEST_MAX)                 /* 0x7FFFFFFFFFFFFFFF for 64-bits */
 571 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
 572 #endif
 573
 574 /* * Convert a LONGEST to an int.  This is used in contexts (e.g. number of
 575    arguments to a function, number in a value history, register number, etc.)
 576    where the value must not be larger than can fit in an int.  */
 577
 578 extern int longest_to_int (LONGEST);
 579
 580 /* * List of known OS ABIs.  If you change this, make sure to update the
 581    table in osabi.c.  */
 582 enum gdb_osabi
 583 {
 584   GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info.  */
 585
 586   GDB_OSABI_UNKNOWN = 0,        /* keep this zero */
 587
 588   GDB_OSABI_SVR4,
 589   GDB_OSABI_HURD,
 590   GDB_OSABI_SOLARIS,
 591   GDB_OSABI_LINUX,
 592   GDB_OSABI_FREEBSD_AOUT,
 593   GDB_OSABI_FREEBSD_ELF,
 594   GDB_OSABI_NETBSD_AOUT,
 595   GDB_OSABI_NETBSD_ELF,
 596   GDB_OSABI_OPENBSD_ELF,
 597   GDB_OSABI_WINCE,
 598   GDB_OSABI_GO32,
 599   GDB_OSABI_IRIX,
 600   GDB_OSABI_HPUX_ELF,
 601   GDB_OSABI_HPUX_SOM,
 602   GDB_OSABI_QNXNTO,
 603   GDB_OSABI_CYGWIN,
 604   GDB_OSABI_AIX,
 605   GDB_OSABI_DICOS,
 606   GDB_OSABI_DARWIN,
 607   GDB_OSABI_SYMBIAN,
 608   GDB_OSABI_OPENVMS,
 609   GDB_OSABI_LYNXOS178,
 610   GDB_OSABI_NEWLIB,
 611   GDB_OSABI_SDE,
 612
 613   GDB_OSABI_INVALID             /* keep this last */
 614 };
 615
 616 /* Global functions from other, non-gdb GNU thingies.
 617    Libiberty thingies are no longer declared here.  We include libiberty.h
 618    above, instead.  */
 619
 620 /* From other system libraries */
 621
 622 #ifndef atof
 623 extern double atof (const char *);      /* X3.159-1989  4.10.1.1 */
 624 #endif
 625
 626 /* Enumerate the requirements a symbol has in order to be evaluated.
 627    These are listed in order of "strength" -- a later entry subsumes
 628    earlier ones.  This fine-grained distinction is important because
 629    it allows for the evaluation of a TLS symbol during unwinding --
 630    when unwinding one has access to registers, but not the frame
 631    itself, because that is being constructed.  */
 632
 633 enum symbol_needs_kind
 634 {
 635   /* No special requirements -- just memory.  */
 636   SYMBOL_NEEDS_NONE,
 637
 638   /* The symbol needs registers.  */
 639   SYMBOL_NEEDS_REGISTERS,
 640
 641   /* The symbol needs a frame.  */
 642   SYMBOL_NEEDS_FRAME
 643 };
 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 /* In findvar.c.  */
 654
 655 extern LONGEST extract_signed_integer (const gdb_byte *, int,
 656                                        enum bfd_endian);
 657
 658 extern ULONGEST extract_unsigned_integer (const gdb_byte *, int,
 659                                           enum bfd_endian);
 660
 661 extern int extract_long_unsigned_integer (const gdb_byte *, int,
 662                                           enum bfd_endian, LONGEST *);
 663
 664 extern CORE_ADDR extract_typed_address (const gdb_byte *buf,
 665                                         struct type *type);
 666
 667 extern void store_signed_integer (gdb_byte *, int,
 668                                   enum bfd_endian, LONGEST);
 669
 670 extern void store_unsigned_integer (gdb_byte *, int,
 671                                     enum bfd_endian, ULONGEST);
 672
 673 extern void store_typed_address (gdb_byte *buf, struct type *type,
 674                                  CORE_ADDR addr);
 675
 676 \f
 677 /* From valops.c */
 678
 679 extern int watchdog;
 680
 681 /* Hooks for alternate command interfaces.  */
 682
 683 /* * The name of the interpreter if specified on the command line.  */
 684 extern char *interpreter_p;
 685
 686 struct target_waitstatus;
 687 struct cmd_list_element;
 688
 689 extern void (*deprecated_pre_add_symbol_hook) (const char *);
 690 extern void (*deprecated_post_add_symbol_hook) (void);
 691 extern void (*selected_frame_level_changed_hook) (int);
 692 extern int (*deprecated_ui_loop_hook) (int signo);
 693 extern void (*deprecated_show_load_progress) (const char *section,
 694                                               unsigned long section_sent,
 695                                               unsigned long section_size,
 696                                               unsigned long total_sent,
 697                                               unsigned long total_size);
 698 extern void (*deprecated_print_frame_info_listing_hook) (struct symtab * s,
 699                                                          int line,
 700                                                          int stopline,
 701                                                          int noerror);
 702 extern int (*deprecated_query_hook) (const char *, va_list)
 703      ATTRIBUTE_FPTR_PRINTF(1,0);
 704 extern void (*deprecated_warning_hook) (const char *, va_list)
 705      ATTRIBUTE_FPTR_PRINTF(1,0);
 706 extern void (*deprecated_interactive_hook) (void);
 707 extern void (*deprecated_readline_begin_hook) (char *, ...)
 708      ATTRIBUTE_FPTR_PRINTF_1;
 709 extern char *(*deprecated_readline_hook) (const char *);
 710 extern void (*deprecated_readline_end_hook) (void);
 711 extern void (*deprecated_context_hook) (int);
 712 extern ptid_t (*deprecated_target_wait_hook) (ptid_t ptid,
 713                                               struct target_waitstatus *status,
 714                                               int options);
 715
 716 extern void (*deprecated_attach_hook) (void);
 717 extern void (*deprecated_detach_hook) (void);
 718 extern void (*deprecated_call_command_hook) (struct cmd_list_element * c,
 719                                              char *cmd, int from_tty);
 720
 721 extern int (*deprecated_ui_load_progress_hook) (const char *section,
 722                                                 unsigned long num);
 723
 724 /* If this definition isn't overridden by the header files, assume
 725    that isatty and fileno exist on this system.  */
 726 #ifndef ISATTY
 727 #define ISATTY(FP)      (isatty (fileno (FP)))
 728 #endif
 729
 730 /* * A width that can achieve a better legibility for GDB MI mode.  */
 731 #define GDB_MI_MSG_WIDTH  80
 732
 733 /* From progspace.c */
 734
 735 extern void initialize_progspace (void);
 736 extern void initialize_inferiors (void);
 737
 738 /* * Special block numbers */
 739
 740 enum block_enum
 741 {
 742   GLOBAL_BLOCK = 0,
 743   STATIC_BLOCK = 1,
 744   FIRST_LOCAL_BLOCK = 2
 745 };
 746
 747 /* User selection used in observer.h and multiple print functions.  */
 748
 749 enum user_selected_what_flag
 750   {
 751     /* Inferior selected.  */
 752     USER_SELECTED_INFERIOR = 1 << 1,
 753
 754     /* Thread selected.  */
 755     USER_SELECTED_THREAD = 1 << 2,
 756
 757     /* Frame selected.  */
 758     USER_SELECTED_FRAME = 1 << 3
 759   };
 760 DEF_ENUM_FLAGS_TYPE (enum user_selected_what_flag, user_selected_what);
 761
 762 #include "utils.h"
 763
 764 #endif /* #ifndef DEFS_H */