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) 1986-2014 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 #include <stddef.h>
  52
  53 #include <unistd.h>
  54
  55 /* For gnulib's PATH_MAX.  */
  56 #include "pathmax.h"
  57
  58 #include <fcntl.h>
  59
  60 /* First include ansidecl.h so we can use the various macro definitions
  61    here and in all subsequent file inclusions.  */
  62
  63 #include "ansidecl.h"
  64
  65 #include "gdb_locale.h"
  66
  67 #include "gdb_wchar.h"
  68
  69 /* For ``enum gdb_signal''.  */
  70 #include "gdb/signals.h"
  71
  72 #include "ui-file.h"
  73
  74 #include "host-defs.h"
  75
  76 /* Just in case they're not defined in stdio.h.  */
  77
  78 #ifndef SEEK_SET
  79 #define SEEK_SET 0
  80 #endif
  81 #ifndef SEEK_CUR
  82 #define SEEK_CUR 1
  83 #endif
  84
  85 /* The O_BINARY flag is defined in fcntl.h on some non-Posix platforms.
  86    It is used as an access modifier in calls to open(), where it acts
  87    similarly to the "b" character in fopen()'s MODE argument.  On Posix
  88    platforms it should be a no-op, so it is defined as 0 here.  This
  89    ensures that the symbol may be used freely elsewhere in gdb.  */
  90
  91 #ifndef O_BINARY
  92 #define O_BINARY 0
  93 #endif
  94
  95 #include <stdarg.h>             /* For va_list.  */
  96
  97 #include "libiberty.h"
  98 #include "hashtab.h"
  99
 100 /* Rather than duplicate all the logic in BFD for figuring out what
 101    types to use (which can be pretty complicated), symply define them
 102    in terms of the corresponding type from BFD.  */
 103
 104 #include "bfd.h"
 105
 106 /* * A byte from the program being debugged.  */
 107 typedef bfd_byte gdb_byte;
 108
 109 /* * An address in the program being debugged.  Host byte order.  */
 110 typedef bfd_vma CORE_ADDR;
 111
 112 /* * The largest CORE_ADDR value.  */
 113 #define CORE_ADDR_MAX (~ (CORE_ADDR) 0)
 114
 115 /* This is to make sure that LONGEST is at least as big as CORE_ADDR.  */
 116
 117 #ifdef BFD64
 118
 119 #define LONGEST BFD_HOST_64_BIT
 120 #define ULONGEST BFD_HOST_U_64_BIT
 121
 122 #else /* No BFD64 */
 123
 124 #define LONGEST long long
 125 #define ULONGEST unsigned long long
 126
 127 #endif /* No BFD64 */
 128
 129 #ifndef min
 130 #define min(a, b) ((a) < (b) ? (a) : (b))
 131 #endif
 132 #ifndef max
 133 #define max(a, b) ((a) > (b) ? (a) : (b))
 134 #endif
 135
 136 #include "ptid.h"
 137
 138 /* * Enable xdb commands if set.  */
 139 extern int xdb_commands;
 140
 141 /* * Enable dbx commands if set.  */
 142 extern int dbx_commands;
 143
 144 /* * System root path, used to find libraries etc.  */
 145 extern char *gdb_sysroot;
 146
 147 /* * GDB datadir, used to store data files.  */
 148 extern char *gdb_datadir;
 149
 150 /* * If non-NULL, the possibly relocated path to python's "lib" directory
 151    specified with --with-python.  */
 152 extern char *python_libdir;
 153
 154 /* * Search path for separate debug files.  */
 155 extern char *debug_file_directory;
 156
 157 /* GDB has two methods for handling SIGINT.  When immediate_quit is
 158    nonzero, a SIGINT results in an immediate longjmp out of the signal
 159    handler.  Otherwise, SIGINT simply sets a flag; code that might
 160    take a long time, and which ought to be interruptible, checks this
 161    flag using the QUIT macro.
 162
 163    These functions use the extension_language_ops API to allow extension
 164    language(s) and GDB SIGINT handling to coexist seamlessly.  */
 165
 166 /* * Clear the quit flag.  */
 167 extern void clear_quit_flag (void);
 168 /* * Evaluate to non-zero if the quit flag is set, zero otherwise.  This
 169    will clear the quit flag as a side effect.  */
 170 extern int check_quit_flag (void);
 171 /* * Set the quit flag.  */
 172 extern void set_quit_flag (void);
 173
 174 /* Flag that function quit should call quit_force.  */
 175 extern volatile int sync_quit_force_run;
 176
 177 extern int immediate_quit;
 178
 179 extern void quit (void);
 180
 181 /* FIXME: cagney/2000-03-13: It has been suggested that the peformance
 182    benefits of having a ``QUIT'' macro rather than a function are
 183    marginal.  If the overhead of a QUIT function call is proving
 184    significant then its calling frequency should probably be reduced
 185    [kingdon].  A profile analyzing the current situtation is
 186    needed.  */
 187
 188 #define QUIT { \
 189   if (check_quit_flag () || sync_quit_force_run) quit (); \
 190   if (deprecated_interactive_hook) deprecated_interactive_hook (); \
 191 }
 192
 193 /* * Languages represented in the symbol table and elsewhere.
 194    This should probably be in language.h, but since enum's can't
 195    be forward declared to satisfy opaque references before their
 196    actual definition, needs to be here.  */
 197
 198 enum language
 199   {
 200     language_unknown,           /* Language not known */
 201     language_auto,              /* Placeholder for automatic setting */
 202     language_c,                 /* C */
 203     language_cplus,             /* C++ */
 204     language_d,                 /* D */
 205     language_go,                /* Go */
 206     language_objc,              /* Objective-C */
 207     language_java,              /* Java */
 208     language_fortran,           /* Fortran */
 209     language_m2,                /* Modula-2 */
 210     language_asm,               /* Assembly language */
 211     language_pascal,            /* Pascal */
 212     language_ada,               /* Ada */
 213     language_opencl,            /* OpenCL */
 214     language_minimal,           /* All other languages, minimal support only */
 215     nr_languages
 216   };
 217
 218 enum precision_type
 219   {
 220     single_precision,
 221     double_precision,
 222     unspecified_precision
 223   };
 224
 225 /* * A generic, not quite boolean, enumeration.  This is used for
 226    set/show commands in which the options are on/off/automatic.  */
 227 enum auto_boolean
 228 {
 229   AUTO_BOOLEAN_TRUE,
 230   AUTO_BOOLEAN_FALSE,
 231   AUTO_BOOLEAN_AUTO
 232 };
 233
 234 /* * Potential ways that a function can return a value of a given
 235    type.  */
 236
 237 enum return_value_convention
 238 {
 239   /* * Where the return value has been squeezed into one or more
 240      registers.  */
 241   RETURN_VALUE_REGISTER_CONVENTION,
 242   /* * Commonly known as the "struct return convention".  The caller
 243      passes an additional hidden first parameter to the caller.  That
 244      parameter contains the address at which the value being returned
 245      should be stored.  While typically, and historically, used for
 246      large structs, this is convention is applied to values of many
 247      different types.  */
 248   RETURN_VALUE_STRUCT_CONVENTION,
 249   /* * Like the "struct return convention" above, but where the ABI
 250      guarantees that the called function stores the address at which
 251      the value being returned is stored in a well-defined location,
 252      such as a register or memory slot in the stack frame.  Don't use
 253      this if the ABI doesn't explicitly guarantees this.  */
 254   RETURN_VALUE_ABI_RETURNS_ADDRESS,
 255   /* * Like the "struct return convention" above, but where the ABI
 256      guarantees that the address at which the value being returned is
 257      stored will be available in a well-defined location, such as a
 258      register or memory slot in the stack frame.  Don't use this if
 259      the ABI doesn't explicitly guarantees this.  */
 260   RETURN_VALUE_ABI_PRESERVES_ADDRESS,
 261 };
 262
 263 /* Needed for various prototypes */
 264
 265 struct symtab;
 266 struct breakpoint;
 267 struct frame_info;
 268 struct gdbarch;
 269 struct value;
 270
 271 /* From main.c.  */
 272
 273 /* This really belong in utils.c (path-utils.c?), but it references some
 274    globals that are currently only available to main.c.  */
 275 extern char *relocate_gdb_directory (const char *initial, int flag);
 276
 277 \f
 278 /* Annotation stuff.  */
 279
 280 extern int annotation_level;    /* in stack.c */
 281 \f
 282
 283 /* From regex.c or libc.  BSD 4.4 declares this with the argument type as
 284    "const char *" in unistd.h, so we can't declare the argument
 285    as "char *".  */
 286
 287 extern char *re_comp (const char *);
 288
 289 /* From symfile.c */
 290
 291 extern void symbol_file_command (char *, int);
 292
 293 /* * Remote targets may wish to use this as their load function.  */
 294 extern void generic_load (const char *name, int from_tty);
 295
 296 /* * Report on STREAM the performance of memory transfer operation,
 297    such as 'load'.
 298    @param DATA_COUNT is the number of bytes transferred.
 299    @param WRITE_COUNT is the number of separate write operations, or 0,
 300    if that information is not available.
 301    @param START_TIME is the time at which an operation was started.
 302    @param END_TIME is the time at which an operation ended.  */
 303 struct timeval;
 304 extern void print_transfer_performance (struct ui_file *stream,
 305                                         unsigned long data_count,
 306                                         unsigned long write_count,
 307                                         const struct timeval *start_time,
 308                                         const struct timeval *end_time);
 309
 310 /* From top.c */
 311
 312 typedef void initialize_file_ftype (void);
 313
 314 extern char *gdb_readline (char *);
 315
 316 extern char *gdb_readline_wrapper (char *);
 317
 318 extern char *command_line_input (char *, int, char *);
 319
 320 extern void print_prompt (void);
 321
 322 extern int input_from_terminal_p (void);
 323
 324 extern int info_verbose;
 325
 326 /* From printcmd.c */
 327
 328 extern void set_next_address (struct gdbarch *, CORE_ADDR);
 329
 330 extern int print_address_symbolic (struct gdbarch *, CORE_ADDR,
 331                                    struct ui_file *, int, char *);
 332
 333 extern int build_address_symbolic (struct gdbarch *,
 334                                    CORE_ADDR addr,
 335                                    int do_demangle,
 336                                    char **name,
 337                                    int *offset,
 338                                    char **filename,
 339                                    int *line,
 340                                    int *unmapped);
 341
 342 extern void print_address (struct gdbarch *, CORE_ADDR, struct ui_file *);
 343 extern const char *pc_prefix (CORE_ADDR);
 344
 345 /* From source.c */
 346
 347 /* See openp function definition for their description.  */
 348 #define OPF_TRY_CWD_FIRST     0x01
 349 #define OPF_SEARCH_IN_PATH    0x02
 350 #define OPF_RETURN_REALPATH   0x04
 351
 352 extern int openp (const char *, int, const char *, int, char **);
 353
 354 extern int source_full_path_of (const char *, char **);
 355
 356 extern void mod_path (char *, char **);
 357
 358 extern void add_path (char *, char **, int);
 359
 360 extern void directory_switch (char *, int);
 361
 362 extern char *source_path;
 363
 364 extern void init_source_path (void);
 365
 366 /* From exec.c */
 367
 368 /* * Process memory area starting at ADDR with length SIZE.  Area is
 369    readable iff READ is non-zero, writable if WRITE is non-zero,
 370    executable if EXEC is non-zero.  Area is possibly changed against
 371    its original file based copy if MODIFIED is non-zero.  DATA is
 372    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 /* * Possible lvalue types.  Like enum language, this should be in
 379    value.h, but needs to be here for the same reason.  */
 380
 381 enum lval_type
 382   {
 383     /* * Not an lval.  */
 384     not_lval,
 385     /* * In memory.  */
 386     lval_memory,
 387     /* * In a register.  Registers are relative to a frame.  */
 388     lval_register,
 389     /* * In a gdb internal variable.  */
 390     lval_internalvar,
 391     /* * Value encapsulates a callable defined in an extension language.  */
 392     lval_xcallable,
 393     /* * Part of a gdb internal variable (structure field).  */
 394     lval_internalvar_component,
 395     /* * Value's bits are fetched and stored using functions provided
 396        by 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     guile_control,
 420     while_stepping_control,
 421     invalid_control
 422   };
 423
 424 /* * Structure for saved commands lines (for breakpoints, defined
 425    commands, etc).  */
 426
 427 struct command_line
 428   {
 429     struct command_line *next;
 430     char *line;
 431     enum command_control_type control_type;
 432     /* * The number of elements in body_list.  */
 433     int body_count;
 434     /* * For composite commands, the nested lists of commands.  For
 435        example, for "if" command this will contain the then branch and
 436        the else branch, if that is available.  */
 437     struct command_line **body_list;
 438   };
 439
 440 extern struct command_line *read_command_lines (char *, int, int,
 441                                                 void (*)(char *, void *),
 442                                                 void *);
 443 extern struct command_line *read_command_lines_1 (char * (*) (void), int,
 444                                                   void (*)(char *, void *),
 445                                                   void *);
 446
 447 extern void free_command_lines (struct command_line **);
 448
 449 /* * Parameters of the "info proc" command.  */
 450
 451 enum info_proc_what
 452   {
 453     /* * Display the default cmdline, cwd and exe outputs.  */
 454     IP_MINIMAL,
 455
 456     /* * Display `info proc mappings'.  */
 457     IP_MAPPINGS,
 458
 459     /* * Display `info proc status'.  */
 460     IP_STATUS,
 461
 462     /* * Display `info proc stat'.  */
 463     IP_STAT,
 464
 465     /* * Display `info proc cmdline'.  */
 466     IP_CMDLINE,
 467
 468     /* * Display `info proc exe'.  */
 469     IP_EXE,
 470
 471     /* * Display `info proc cwd'.  */
 472     IP_CWD,
 473
 474     /* * Display all of the above.  */
 475     IP_ALL
 476   };
 477
 478 /* * String containing the current directory (what getwd would return).  */
 479
 480 extern char *current_directory;
 481
 482 /* * Default radixes for input and output.  Only some values supported.  */
 483 extern unsigned input_radix;
 484 extern unsigned output_radix;
 485
 486 /* * Possibilities for prettyformat parameters to routines which print
 487    things.  Like enum language, this should be in value.h, but needs
 488    to be here for the same reason.  FIXME:  If we can eliminate this
 489    as an arg to LA_VAL_PRINT, then we can probably move it back to
 490    value.h.  */
 491
 492 enum val_prettyformat
 493   {
 494     Val_no_prettyformat = 0,
 495     Val_prettyformat,
 496     /* * Use the default setting which the user has specified.  */
 497     Val_prettyformat_default
 498   };
 499
 500 /* * Optional native machine support.  Non-native (and possibly pure
 501    multi-arch) targets do not need a "nm.h" file.  This will be a
 502    symlink to one of the nm-*.h files, built by the `configure'
 503    script.  */
 504
 505 #ifdef GDB_NM_FILE
 506 #include "nm.h"
 507 #endif
 508
 509 /* Assume that fopen accepts the letter "b" in the mode string.
 510    It is demanded by ISO C9X, and should be supported on all
 511    platforms that claim to have a standard-conforming C library.  On
 512    true POSIX systems it will be ignored and have no effect.  There
 513    may still be systems without a standard-conforming C library where
 514    an ISO C9X compiler (GCC) is available.  Known examples are SunOS
 515    4.x and 4.3BSD.  This assumption means these systems are no longer
 516    supported.  */
 517 #ifndef FOPEN_RB
 518 # include "fopen-bin.h"
 519 #endif
 520
 521 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
 522    FIXME: Assumes 2's complement arithmetic.  */
 523
 524 #if !defined (UINT_MAX)
 525 #define UINT_MAX ((unsigned int)(~0))       /* 0xFFFFFFFF for 32-bits */
 526 #endif
 527
 528 #if !defined (INT_MAX)
 529 #define INT_MAX ((int)(UINT_MAX >> 1))      /* 0x7FFFFFFF for 32-bits */
 530 #endif
 531
 532 #if !defined (INT_MIN)
 533 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
 534 #endif
 535
 536 #if !defined (ULONG_MAX)
 537 #define ULONG_MAX ((unsigned long)(~0L))    /* 0xFFFFFFFF for 32-bits */
 538 #endif
 539
 540 #if !defined (LONG_MAX)
 541 #define LONG_MAX ((long)(ULONG_MAX >> 1))   /* 0x7FFFFFFF for 32-bits */
 542 #endif
 543
 544 #if !defined (ULONGEST_MAX)
 545 #define ULONGEST_MAX (~(ULONGEST)0)        /* 0xFFFFFFFFFFFFFFFF for 64-bits */
 546 #endif
 547
 548 #if !defined (LONGEST_MAX)                 /* 0x7FFFFFFFFFFFFFFF for 64-bits */
 549 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
 550 #endif
 551
 552 /* * Convert a LONGEST to an int.  This is used in contexts (e.g. number of
 553    arguments to a function, number in a value history, register number, etc.)
 554    where the value must not be larger than can fit in an int.  */
 555
 556 extern int longest_to_int (LONGEST);
 557
 558 #include "common-utils.h"
 559
 560 /* * List of known OS ABIs.  If you change this, make sure to update the
 561    table in osabi.c.  */
 562 enum gdb_osabi
 563 {
 564   GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info.  */
 565
 566   GDB_OSABI_UNKNOWN = 0,        /* keep this zero */
 567
 568   GDB_OSABI_SVR4,
 569   GDB_OSABI_HURD,
 570   GDB_OSABI_SOLARIS,
 571   GDB_OSABI_OSF1,
 572   GDB_OSABI_LINUX,
 573   GDB_OSABI_FREEBSD_AOUT,
 574   GDB_OSABI_FREEBSD_ELF,
 575   GDB_OSABI_NETBSD_AOUT,
 576   GDB_OSABI_NETBSD_ELF,
 577   GDB_OSABI_OPENBSD_ELF,
 578   GDB_OSABI_WINCE,
 579   GDB_OSABI_GO32,
 580   GDB_OSABI_IRIX,
 581   GDB_OSABI_HPUX_ELF,
 582   GDB_OSABI_HPUX_SOM,
 583   GDB_OSABI_QNXNTO,
 584   GDB_OSABI_CYGWIN,
 585   GDB_OSABI_AIX,
 586   GDB_OSABI_DICOS,
 587   GDB_OSABI_DARWIN,
 588   GDB_OSABI_SYMBIAN,
 589   GDB_OSABI_OPENVMS,
 590   GDB_OSABI_LYNXOS178,
 591   GDB_OSABI_NEWLIB,
 592
 593   GDB_OSABI_INVALID             /* keep this last */
 594 };
 595
 596 /* Global functions from other, non-gdb GNU thingies.
 597    Libiberty thingies are no longer declared here.  We include libiberty.h
 598    above, instead.  */
 599
 600 /* From other system libraries */
 601
 602 #include <stdlib.h>
 603
 604
 605 #ifndef atof
 606 extern double atof (const char *);      /* X3.159-1989  4.10.1.1 */
 607 #endif
 608
 609 /* Various possibilities for alloca.  */
 610 #ifndef alloca
 611 #ifdef __GNUC__
 612 #define alloca __builtin_alloca
 613 #else /* Not GNU C */
 614 #ifdef HAVE_ALLOCA_H
 615 #include <alloca.h>
 616 #else
 617 #ifdef _AIX
 618 #pragma alloca
 619 #else
 620
 621 /* We need to be careful not to declare this in a way which conflicts with
 622    bison.  Bison never declares it as char *, but under various circumstances
 623    (like __hpux) we need to use void *.  */
 624 extern void *alloca ();
 625 #endif /* Not _AIX */
 626 #endif /* Not HAVE_ALLOCA_H */
 627 #endif /* Not GNU C */
 628 #endif /* alloca not defined */
 629
 630 /* Dynamic target-system-dependent parameters for GDB.  */
 631 #include "gdbarch.h"
 632
 633 /* * Maximum size of a register.  Something small, but large enough for
 634    all known ISAs.  If it turns out to be too small, make it bigger.  */
 635
 636 enum { MAX_REGISTER_SIZE = 64 };
 637
 638 /* Static target-system-dependent parameters for GDB.  */
 639
 640 /* * Number of bits in a char or unsigned char for the target machine.
 641    Just like CHAR_BIT in <limits.h> but describes the target machine.  */
 642 #if !defined (TARGET_CHAR_BIT)
 643 #define TARGET_CHAR_BIT 8
 644 #endif
 645
 646 /* * If we picked up a copy of CHAR_BIT from a configuration file
 647    (which may get it by including <limits.h>) then use it to set
 648    the number of bits in a host char.  If not, use the same size
 649    as the target.  */
 650
 651 #if defined (CHAR_BIT)
 652 #define HOST_CHAR_BIT CHAR_BIT
 653 #else
 654 #define HOST_CHAR_BIT TARGET_CHAR_BIT
 655 #endif
 656
 657 /* In findvar.c.  */
 658
 659 extern LONGEST extract_signed_integer (const gdb_byte *, int,
 660                                        enum bfd_endian);
 661
 662 extern ULONGEST extract_unsigned_integer (const gdb_byte *, int,
 663                                           enum bfd_endian);
 664
 665 extern int extract_long_unsigned_integer (const gdb_byte *, int,
 666                                           enum bfd_endian, LONGEST *);
 667
 668 extern CORE_ADDR extract_typed_address (const gdb_byte *buf,
 669                                         struct type *type);
 670
 671 extern void store_signed_integer (gdb_byte *, int,
 672                                   enum bfd_endian, LONGEST);
 673
 674 extern void store_unsigned_integer (gdb_byte *, int,
 675                                     enum bfd_endian, ULONGEST);
 676
 677 extern void store_typed_address (gdb_byte *buf, struct type *type,
 678                                  CORE_ADDR addr);
 679
 680 \f
 681 /* From valops.c */
 682
 683 extern int watchdog;
 684
 685 /* Hooks for alternate command interfaces.  */
 686
 687 /* * The name of the interpreter if specified on the command line.  */
 688 extern char *interpreter_p;
 689
 690 /* If a given interpreter matches INTERPRETER_P then it should update
 691    deprecated_init_ui_hook with the per-interpreter implementation.  */
 692 /* FIXME: deprecated_init_ui_hook should be moved here.  */
 693
 694 struct target_waitstatus;
 695 struct cmd_list_element;
 696
 697 extern void (*deprecated_pre_add_symbol_hook) (const char *);
 698 extern void (*deprecated_post_add_symbol_hook) (void);
 699 extern void (*selected_frame_level_changed_hook) (int);
 700 extern int (*deprecated_ui_loop_hook) (int signo);
 701 extern void (*deprecated_init_ui_hook) (char *argv0);
 702 extern void (*deprecated_show_load_progress) (const char *section,
 703                                               unsigned long section_sent,
 704                                               unsigned long section_size,
 705                                               unsigned long total_sent,
 706                                               unsigned long total_size);
 707 extern void (*deprecated_print_frame_info_listing_hook) (struct symtab * s,
 708                                                          int line,
 709                                                          int stopline,
 710                                                          int noerror);
 711 extern int (*deprecated_query_hook) (const char *, va_list)
 712      ATTRIBUTE_FPTR_PRINTF(1,0);
 713 extern void (*deprecated_warning_hook) (const char *, va_list)
 714      ATTRIBUTE_FPTR_PRINTF(1,0);
 715 extern void (*deprecated_interactive_hook) (void);
 716 extern void (*deprecated_readline_begin_hook) (char *, ...)
 717      ATTRIBUTE_FPTR_PRINTF_1;
 718 extern char *(*deprecated_readline_hook) (char *);
 719 extern void (*deprecated_readline_end_hook) (void);
 720 extern void (*deprecated_register_changed_hook) (int regno);
 721 extern void (*deprecated_context_hook) (int);
 722 extern ptid_t (*deprecated_target_wait_hook) (ptid_t ptid,
 723                                               struct target_waitstatus *status,
 724                                               int options);
 725
 726 extern void (*deprecated_attach_hook) (void);
 727 extern void (*deprecated_detach_hook) (void);
 728 extern void (*deprecated_call_command_hook) (struct cmd_list_element * c,
 729                                              char *cmd, int from_tty);
 730
 731 extern int (*deprecated_ui_load_progress_hook) (const char *section,
 732                                                 unsigned long num);
 733
 734 /* If this definition isn't overridden by the header files, assume
 735    that isatty and fileno exist on this system.  */
 736 #ifndef ISATTY
 737 #define ISATTY(FP)      (isatty (fileno (FP)))
 738 #endif
 739
 740 /* * A width that can achieve a better legibility for GDB MI mode.  */
 741 #define GDB_MI_MSG_WIDTH  80
 742
 743 /* From progspace.c */
 744
 745 extern void initialize_progspace (void);
 746 extern void initialize_inferiors (void);
 747
 748 /* * Special block numbers */
 749
 750 enum block_enum
 751 {
 752   GLOBAL_BLOCK = 0,
 753   STATIC_BLOCK = 1,
 754   FIRST_LOCAL_BLOCK = 2
 755 };
 756
 757 #include "utils.h"
 758
 759 #endif /* #ifndef DEFS_H */