xref: /dragonfly/contrib/gdb-7/gdb/defs.h (revision 0ca59c34)
1 /* *INDENT-OFF* */ /* ATTRIBUTE_PRINTF confuses indent, avoid running it
2 		      for now.  */
3 /* Basic, host-specific, and target-specific definitions for GDB.
4    Copyright (C) 1986-2013 Free Software Foundation, Inc.
5 
6    This file is part of GDB.
7 
8    This program is free software; you can redistribute it and/or modify
9    it under the terms of the GNU General Public License as published by
10    the Free Software Foundation; either version 3 of the License, or
11    (at your option) any later version.
12 
13    This program is distributed in the hope that it will be useful,
14    but WITHOUT ANY WARRANTY; without even the implied warranty of
15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16    GNU General Public License for more details.
17 
18    You should have received a copy of the GNU General Public License
19    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
20 
21 #ifndef DEFS_H
22 #define DEFS_H
23 
24 #ifdef GDBSERVER
25 #  error gdbserver should not include gdb/defs.h
26 #endif
27 
28 #include "config.h"		/* Generated by configure.  */
29 #include "libgnu/config.h"
30 
31 #include <sys/types.h>
32 #include <stdio.h>
33 #include <errno.h>		/* System call error return status.  */
34 #include <limits.h>
35 #include <stdint.h>
36 
37 /* The libdecnumber library, on which GDB depends, includes a header file
38    called gstdint.h instead of relying directly on stdint.h.  GDB, on the
39    other hand, includes stdint.h directly, relying on the fact that gnulib
40    generates a copy if the system doesn't provide one or if it is missing
41    some features.  Unfortunately, gstdint.h and stdint.h cannot be included
42    at the same time, which may happen when we include a file from
43    libdecnumber.
44 
45    The following macro definition effectively prevents the inclusion of
46    gstdint.h, as all the definitions it provides are guarded against
47    the GCC_GENERATED_STDINT_H macro.  We already have gnulib/stdint.h
48    included, so it's ok to blank out gstdint.h.  */
49 #define GCC_GENERATED_STDINT_H 1
50 
51 #ifdef HAVE_STDDEF_H
52 #include <stddef.h>
53 #endif
54 
55 #ifdef HAVE_UNISTD_H
56 #include <unistd.h>
57 #endif
58 
59 #include <fcntl.h>
60 
61 /* First include ansidecl.h so we can use the various macro definitions
62    here and in all subsequent file inclusions.  */
63 
64 #include "ansidecl.h"
65 
66 #include "gdb_locale.h"
67 
68 #include "gdb_wchar.h"
69 
70 /* For ``enum gdb_signal''.  */
71 #include "gdb/signals.h"
72 
73 #include "ui-file.h"
74 
75 #include "host-defs.h"
76 
77 /* Just in case they're not defined in stdio.h.  */
78 
79 #ifndef SEEK_SET
80 #define SEEK_SET 0
81 #endif
82 #ifndef SEEK_CUR
83 #define SEEK_CUR 1
84 #endif
85 
86 /* The O_BINARY flag is defined in fcntl.h on some non-Posix platforms.
87    It is used as an access modifier in calls to open(), where it acts
88    similarly to the "b" character in fopen()'s MODE argument.  On Posix
89    platforms it should be a no-op, so it is defined as 0 here.  This
90    ensures that the symbol may be used freely elsewhere in gdb.  */
91 
92 #ifndef O_BINARY
93 #define O_BINARY 0
94 #endif
95 
96 #include <stdarg.h>		/* For va_list.  */
97 
98 #include "libiberty.h"
99 #include "hashtab.h"
100 
101 /* Rather than duplicate all the logic in BFD for figuring out what
102    types to use (which can be pretty complicated), symply define them
103    in terms of the corresponding type from BFD.  */
104 
105 #include "bfd.h"
106 
107 /* A byte from the program being debugged.  */
108 typedef bfd_byte gdb_byte;
109 
110 /* An address in the program being debugged.  Host byte order.  */
111 typedef bfd_vma CORE_ADDR;
112 
113 /* The largest CORE_ADDR value.  */
114 #define CORE_ADDR_MAX (~ (CORE_ADDR) 0)
115 
116 /* This is to make sure that LONGEST is at least as big as CORE_ADDR.  */
117 
118 #ifdef BFD64
119 
120 #define LONGEST BFD_HOST_64_BIT
121 #define ULONGEST BFD_HOST_U_64_BIT
122 
123 #else /* No BFD64 */
124 
125 #define LONGEST long long
126 #define ULONGEST unsigned long long
127 
128 #endif /* No BFD64 */
129 
130 #ifndef min
131 #define min(a, b) ((a) < (b) ? (a) : (b))
132 #endif
133 #ifndef max
134 #define max(a, b) ((a) > (b) ? (a) : (b))
135 #endif
136 
137 #include "ptid.h"
138 
139 /* Enable xdb commands if set.  */
140 extern int xdb_commands;
141 
142 /* Enable dbx commands if set.  */
143 extern int dbx_commands;
144 
145 /* System root path, used to find libraries etc.  */
146 extern char *gdb_sysroot;
147 
148 /* GDB datadir, used to store data files.  */
149 extern char *gdb_datadir;
150 
151 /* If non-NULL, the possibly relocated path to python's "lib" directory
152    specified with --with-python.  */
153 extern char *python_libdir;
154 
155 /* Search path for separate debug files.  */
156 extern char *debug_file_directory;
157 
158 /* GDB has two methods for handling SIGINT.  When immediate_quit is
159    nonzero, a SIGINT results in an immediate longjmp out of the signal
160    handler.  Otherwise, SIGINT simply sets a flag; code that might
161    take a long time, and which ought to be interruptible, checks this
162    flag using the QUIT macro.
163 
164    If GDB is built with Python support, it uses Python's low-level
165    interface to implement the flag.  This approach makes it possible
166    for Python and GDB SIGINT handling to coexist seamlessly.
167 
168    If GDB is built without Python, it instead uses its traditional
169    variables.  */
170 
171 /* Clear the quit flag.  */
172 extern void clear_quit_flag (void);
173 /* Evaluate to non-zero if the quit flag is set, zero otherwise.  This
174    will clear the quit flag as a side effect.  */
175 extern int check_quit_flag (void);
176 /* Set the quit flag.  */
177 extern void set_quit_flag (void);
178 
179 extern int immediate_quit;
180 
181 extern void quit (void);
182 
183 /* FIXME: cagney/2000-03-13: It has been suggested that the peformance
184    benefits of having a ``QUIT'' macro rather than a function are
185    marginal.  If the overhead of a QUIT function call is proving
186    significant then its calling frequency should probably be reduced
187    [kingdon].  A profile analyzing the current situtation is
188    needed.  */
189 
190 #define QUIT { \
191   if (check_quit_flag ()) quit (); \
192   if (deprecated_interactive_hook) deprecated_interactive_hook (); \
193 }
194 
195 /* Languages represented in the symbol table and elsewhere.
196    This should probably be in language.h, but since enum's can't
197    be forward declared to satisfy opaque references before their
198    actual definition, needs to be here.  */
199 
200 enum language
201   {
202     language_unknown,		/* Language not known */
203     language_auto,		/* Placeholder for automatic setting */
204     language_c,			/* C */
205     language_cplus,		/* C++ */
206     language_d,			/* D */
207     language_go,		/* Go */
208     language_objc,		/* Objective-C */
209     language_java,		/* Java */
210     language_fortran,		/* Fortran */
211     language_m2,		/* Modula-2 */
212     language_asm,		/* Assembly language */
213     language_pascal,		/* Pascal */
214     language_ada,		/* Ada */
215     language_opencl,		/* OpenCL */
216     language_minimal,		/* All other languages, minimal support only */
217     nr_languages
218   };
219 
220 enum precision_type
221   {
222     single_precision,
223     double_precision,
224     unspecified_precision
225   };
226 
227 /* A generic, not quite boolean, enumeration.  */
228 enum auto_boolean
229 {
230   AUTO_BOOLEAN_TRUE,
231   AUTO_BOOLEAN_FALSE,
232   AUTO_BOOLEAN_AUTO
233 };
234 
235 /* Potential ways that a function can return a value of a given type.  */
236 enum return_value_convention
237 {
238   /* Where the return value has been squeezed into one or more
239      registers.  */
240   RETURN_VALUE_REGISTER_CONVENTION,
241   /* Commonly known as the "struct return convention".  The caller
242      passes an additional hidden first parameter to the caller.  That
243      parameter contains the address at which the value being returned
244      should be stored.  While typically, and historically, used for
245      large structs, this is convention is applied to values of many
246      different types.  */
247   RETURN_VALUE_STRUCT_CONVENTION,
248   /* Like the "struct return convention" above, but where the ABI
249      guarantees that the called function stores the address at which
250      the value being returned is stored in a well-defined location,
251      such as a register or memory slot in the stack frame.  Don't use
252      this if the ABI doesn't explicitly guarantees this.  */
253   RETURN_VALUE_ABI_RETURNS_ADDRESS,
254   /* Like the "struct return convention" above, but where the ABI
255      guarantees that the address at which the value being returned is
256      stored will be available in a well-defined location, such as a
257      register or memory slot in the stack frame.  Don't use this if
258      the ABI doesn't explicitly guarantees this.  */
259   RETURN_VALUE_ABI_PRESERVES_ADDRESS,
260 };
261 
262 /* Needed for various prototypes */
263 
264 struct symtab;
265 struct breakpoint;
266 struct frame_info;
267 struct gdbarch;
268 struct value;
269 
270 /* From main.c.  */
271 
272 /* This really belong in utils.c (path-utils.c?), but it references some
273    globals that are currently only available to main.c.  */
274 extern char *relocate_gdb_directory (const char *initial, int flag);
275 
276 
277 /* Annotation stuff.  */
278 
279 extern int annotation_level;	/* in stack.c */
280 
281 
282 /* From regex.c or libc.  BSD 4.4 declares this with the argument type as
283    "const char *" in unistd.h, so we can't declare the argument
284    as "char *".  */
285 
286 extern char *re_comp (const char *);
287 
288 /* From symfile.c */
289 
290 extern void symbol_file_command (char *, int);
291 
292 /* Remote targets may wish to use this as their load function.  */
293 extern void generic_load (char *name, int from_tty);
294 
295 /* Report on STREAM the performance of memory transfer operation,
296    such as 'load'.
297    DATA_COUNT is the number of bytes transferred.
298    WRITE_COUNT is the number of separate write operations, or 0,
299    if that information is not available.
300    START_TIME is the time at which an operation was started.
301    END_TIME is the time at which an operation ended.  */
302 struct timeval;
303 extern void print_transfer_performance (struct ui_file *stream,
304 					unsigned long data_count,
305 					unsigned long write_count,
306 					const struct timeval *start_time,
307 					const struct timeval *end_time);
308 
309 /* From top.c */
310 
311 typedef void initialize_file_ftype (void);
312 
313 extern char *skip_quoted (char *);
314 
315 extern char *gdb_readline (char *);
316 
317 extern char *gdb_readline_wrapper (char *);
318 
319 extern char *command_line_input (char *, int, char *);
320 
321 extern void print_prompt (void);
322 
323 extern int input_from_terminal_p (void);
324 
325 extern int info_verbose;
326 
327 /* From printcmd.c */
328 
329 extern void set_next_address (struct gdbarch *, CORE_ADDR);
330 
331 extern int print_address_symbolic (struct gdbarch *, CORE_ADDR,
332 				   struct ui_file *, int, char *);
333 
334 extern int build_address_symbolic (struct gdbarch *,
335 				   CORE_ADDR addr,
336 				   int do_demangle,
337 				   char **name,
338 				   int *offset,
339 				   char **filename,
340 				   int *line,
341 				   int *unmapped);
342 
343 extern void print_address (struct gdbarch *, CORE_ADDR, struct ui_file *);
344 extern const char *pc_prefix (CORE_ADDR);
345 
346 /* From source.c */
347 
348 /* See openp function definition for their description.  */
349 #define OPF_TRY_CWD_FIRST     0x01
350 #define OPF_SEARCH_IN_PATH    0x02
351 #define OPF_DISABLE_REALPATH  0x04
352 
353 extern int openp (const char *, int, const char *, int, char **);
354 
355 extern int source_full_path_of (const char *, char **);
356 
357 extern void mod_path (char *, char **);
358 
359 extern void add_path (char *, char **, int);
360 
361 extern void directory_switch (char *, int);
362 
363 extern char *source_path;
364 
365 extern void init_source_path (void);
366 
367 /* From exec.c */
368 
369 /* Process memory area starting at ADDR with length SIZE.  Area is readable iff
370    READ is non-zero, writable if WRITE is non-zero, executable if EXEC is
371    non-zero.  Area is possibly changed against its original file based copy if
372    MODIFIED is non-zero.  DATA is passed without changes from a caller.  */
373 
374 typedef int (*find_memory_region_ftype) (CORE_ADDR addr, unsigned long size,
375 					 int read, int write, int exec,
376 					 int modified, void *data);
377 
378 /* Take over the 'find_mapped_memory' vector from exec.c.  */
379 extern void exec_set_find_memory_regions
380   (int (*func) (find_memory_region_ftype func, void *data));
381 
382 /* Possible lvalue types.  Like enum language, this should be in
383    value.h, but needs to be here for the same reason.  */
384 
385 enum lval_type
386   {
387     /* Not an lval.  */
388     not_lval,
389     /* In memory.  */
390     lval_memory,
391     /* In a register.  Registers are relative to a frame.  */
392     lval_register,
393     /* In a gdb internal variable.  */
394     lval_internalvar,
395     /* Part of a gdb internal variable (structure field).  */
396     lval_internalvar_component,
397     /* Value's bits are fetched and stored using functions provided by
398        its creator.  */
399     lval_computed
400   };
401 
402 /* Control types for commands */
403 
404 enum misc_command_type
405   {
406     ok_command,
407     end_command,
408     else_command,
409     nop_command
410   };
411 
412 enum command_control_type
413   {
414     simple_control,
415     break_control,
416     continue_control,
417     while_control,
418     if_control,
419     commands_control,
420     python_control,
421     while_stepping_control,
422     invalid_control
423   };
424 
425 /* Structure for saved commands lines
426    (for breakpoints, defined commands, etc).  */
427 
428 struct command_line
429   {
430     struct command_line *next;
431     char *line;
432     enum command_control_type control_type;
433     /* The number of elements in body_list.  */
434     int body_count;
435     /* For composite commands, the nested lists of commands.  For
436        example, for "if" command this will contain the then branch and
437        the else branch, if that is available.  */
438     struct command_line **body_list;
439   };
440 
441 extern struct command_line *read_command_lines (char *, int, int,
442 						void (*)(char *, void *),
443 						void *);
444 extern struct command_line *read_command_lines_1 (char * (*) (void), int,
445 						  void (*)(char *, void *),
446 						  void *);
447 
448 extern void free_command_lines (struct command_line **);
449 
450 /* Parameters of the "info proc" command.  */
451 
452 enum info_proc_what
453   {
454     /* Display the default cmdline, cwd and exe outputs.  */
455     IP_MINIMAL,
456 
457     /* Display `info proc mappings'.  */
458     IP_MAPPINGS,
459 
460     /* Display `info proc status'.  */
461     IP_STATUS,
462 
463     /* Display `info proc stat'.  */
464     IP_STAT,
465 
466     /* Display `info proc cmdline'.  */
467     IP_CMDLINE,
468 
469     /* Display `info proc exe'.  */
470     IP_EXE,
471 
472     /* Display `info proc cwd'.  */
473     IP_CWD,
474 
475     /* Display all of the above.  */
476     IP_ALL
477   };
478 
479 /* String containing the current directory (what getwd would return).  */
480 
481 extern char *current_directory;
482 
483 /* Default radixes for input and output.  Only some values supported.  */
484 extern unsigned input_radix;
485 extern unsigned output_radix;
486 
487 /* Possibilities for prettyprint parameters to routines which print
488    things.  Like enum language, this should be in value.h, but needs
489    to be here for the same reason.  FIXME:  If we can eliminate this
490    as an arg to LA_VAL_PRINT, then we can probably move it back to
491    value.h.  */
492 
493 enum val_prettyprint
494   {
495     Val_no_prettyprint = 0,
496     Val_prettyprint,
497     /* Use the default setting which the user has specified.  */
498     Val_pretty_default
499   };
500 
501 /* Optional native machine support.  Non-native (and possibly pure
502    multi-arch) targets do not need a "nm.h" file.  This will be a
503    symlink to one of the nm-*.h files, built by the `configure'
504    script.  */
505 
506 #ifdef GDB_NM_FILE
507 #include "nm.h"
508 #endif
509 
510 /* Assume that fopen accepts the letter "b" in the mode string.
511    It is demanded by ISO C9X, and should be supported on all
512    platforms that claim to have a standard-conforming C library.  On
513    true POSIX systems it will be ignored and have no effect.  There
514    may still be systems without a standard-conforming C library where
515    an ISO C9X compiler (GCC) is available.  Known examples are SunOS
516    4.x and 4.3BSD.  This assumption means these systems are no longer
517    supported.  */
518 #ifndef FOPEN_RB
519 # include "fopen-bin.h"
520 #endif
521 
522 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
523    FIXME: Assumes 2's complement arithmetic.  */
524 
525 #if !defined (UINT_MAX)
526 #define	UINT_MAX ((unsigned int)(~0))	    /* 0xFFFFFFFF for 32-bits */
527 #endif
528 
529 #if !defined (INT_MAX)
530 #define	INT_MAX ((int)(UINT_MAX >> 1))	    /* 0x7FFFFFFF for 32-bits */
531 #endif
532 
533 #if !defined (INT_MIN)
534 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
535 #endif
536 
537 #if !defined (ULONG_MAX)
538 #define	ULONG_MAX ((unsigned long)(~0L))    /* 0xFFFFFFFF for 32-bits */
539 #endif
540 
541 #if !defined (LONG_MAX)
542 #define	LONG_MAX ((long)(ULONG_MAX >> 1))   /* 0x7FFFFFFF for 32-bits */
543 #endif
544 
545 #if !defined (ULONGEST_MAX)
546 #define	ULONGEST_MAX (~(ULONGEST)0)        /* 0xFFFFFFFFFFFFFFFF for 64-bits */
547 #endif
548 
549 #if !defined (LONGEST_MAX)                 /* 0x7FFFFFFFFFFFFFFF for 64-bits */
550 #define	LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
551 #endif
552 
553 /* Convert a LONGEST to an int.  This is used in contexts (e.g. number of
554    arguments to a function, number in a value history, register number, etc.)
555    where the value must not be larger than can fit in an int.  */
556 
557 extern int longest_to_int (LONGEST);
558 
559 /* Utility macros to allocate typed memory.  Avoids errors like:
560    struct foo *foo = xmalloc (sizeof struct bar); and memset (foo,
561    sizeof (struct foo), 0).  */
562 #define XZALLOC(TYPE) ((TYPE*) xzalloc (sizeof (TYPE)))
563 #define XMALLOC(TYPE) ((TYPE*) xmalloc (sizeof (TYPE)))
564 #define XCALLOC(NMEMB, TYPE) ((TYPE*) xcalloc ((NMEMB), sizeof (TYPE)))
565 
566 #include "common-utils.h"
567 
568 /* List of known OS ABIs.  If you change this, make sure to update the
569    table in osabi.c.  */
570 enum gdb_osabi
571 {
572   GDB_OSABI_UNINITIALIZED = -1, /* For struct gdbarch_info.  */
573 
574   GDB_OSABI_UNKNOWN = 0,	/* keep this zero */
575 
576   GDB_OSABI_SVR4,
577   GDB_OSABI_HURD,
578   GDB_OSABI_SOLARIS,
579   GDB_OSABI_OSF1,
580   GDB_OSABI_LINUX,
581   GDB_OSABI_FREEBSD_AOUT,
582   GDB_OSABI_FREEBSD_ELF,
583   GDB_OSABI_NETBSD_AOUT,
584   GDB_OSABI_NETBSD_ELF,
585   GDB_OSABI_OPENBSD_ELF,
586   GDB_OSABI_DRAGONFLY,
587   GDB_OSABI_WINCE,
588   GDB_OSABI_GO32,
589   GDB_OSABI_IRIX,
590   GDB_OSABI_INTERIX,
591   GDB_OSABI_HPUX_ELF,
592   GDB_OSABI_HPUX_SOM,
593   GDB_OSABI_QNXNTO,
594   GDB_OSABI_CYGWIN,
595   GDB_OSABI_AIX,
596   GDB_OSABI_DICOS,
597   GDB_OSABI_DARWIN,
598   GDB_OSABI_SYMBIAN,
599   GDB_OSABI_OPENVMS,
600   GDB_OSABI_LYNXOS178,
601   GDB_OSABI_NEWLIB,
602 
603   GDB_OSABI_INVALID		/* keep this last */
604 };
605 
606 /* Global functions from other, non-gdb GNU thingies.
607    Libiberty thingies are no longer declared here.  We include libiberty.h
608    above, instead.  */
609 
610 /* From other system libraries */
611 
612 #ifdef HAVE_STDDEF_H
613 #include <stddef.h>
614 #endif
615 
616 #ifdef HAVE_STDLIB_H
617 #include <stdlib.h>
618 #endif
619 
620 
621 #ifndef atof
622 extern double atof (const char *);	/* X3.159-1989  4.10.1.1 */
623 #endif
624 
625 /* Various possibilities for alloca.  */
626 #ifndef alloca
627 #ifdef __GNUC__
628 #define alloca __builtin_alloca
629 #else /* Not GNU C */
630 #ifdef HAVE_ALLOCA_H
631 #include <alloca.h>
632 #else
633 #ifdef _AIX
634 #pragma alloca
635 #else
636 
637 /* We need to be careful not to declare this in a way which conflicts with
638    bison.  Bison never declares it as char *, but under various circumstances
639    (like __hpux) we need to use void *.  */
640 extern void *alloca ();
641 #endif /* Not _AIX */
642 #endif /* Not HAVE_ALLOCA_H */
643 #endif /* Not GNU C */
644 #endif /* alloca not defined */
645 
646 /* Dynamic target-system-dependent parameters for GDB.  */
647 #include "gdbarch.h"
648 
649 /* Maximum size of a register.  Something small, but large enough for
650    all known ISAs.  If it turns out to be too small, make it bigger.  */
651 
652 enum { MAX_REGISTER_SIZE = 64 };
653 
654 /* Static target-system-dependent parameters for GDB.  */
655 
656 /* Number of bits in a char or unsigned char for the target machine.
657    Just like CHAR_BIT in <limits.h> but describes the target machine.  */
658 #if !defined (TARGET_CHAR_BIT)
659 #define TARGET_CHAR_BIT 8
660 #endif
661 
662 /* If we picked up a copy of CHAR_BIT from a configuration file
663    (which may get it by including <limits.h>) then use it to set
664    the number of bits in a host char.  If not, use the same size
665    as the target.  */
666 
667 #if defined (CHAR_BIT)
668 #define HOST_CHAR_BIT CHAR_BIT
669 #else
670 #define HOST_CHAR_BIT TARGET_CHAR_BIT
671 #endif
672 
673 /* In findvar.c.  */
674 
675 extern LONGEST extract_signed_integer (const gdb_byte *, int,
676 				       enum bfd_endian);
677 
678 extern ULONGEST extract_unsigned_integer (const gdb_byte *, int,
679 					  enum bfd_endian);
680 
681 extern int extract_long_unsigned_integer (const gdb_byte *, int,
682 					  enum bfd_endian, LONGEST *);
683 
684 extern CORE_ADDR extract_typed_address (const gdb_byte *buf,
685 					struct type *type);
686 
687 extern void store_signed_integer (gdb_byte *, int,
688 				  enum bfd_endian, LONGEST);
689 
690 extern void store_unsigned_integer (gdb_byte *, int,
691 				    enum bfd_endian, ULONGEST);
692 
693 extern void store_typed_address (gdb_byte *buf, struct type *type,
694 				 CORE_ADDR addr);
695 
696 
697 /* From valops.c */
698 
699 extern int watchdog;
700 
701 /* Hooks for alternate command interfaces.  */
702 
703 /* The name of the interpreter if specified on the command line.  */
704 extern char *interpreter_p;
705 
706 /* If a given interpreter matches INTERPRETER_P then it should update
707    deprecated_command_loop_hook and deprecated_init_ui_hook with the
708    per-interpreter implementation.  */
709 /* FIXME: deprecated_command_loop_hook and deprecated_init_ui_hook
710    should be moved here.  */
711 
712 struct target_waitstatus;
713 struct cmd_list_element;
714 
715 extern void (*deprecated_pre_add_symbol_hook) (const char *);
716 extern void (*deprecated_post_add_symbol_hook) (void);
717 extern void (*selected_frame_level_changed_hook) (int);
718 extern int (*deprecated_ui_loop_hook) (int signo);
719 extern void (*deprecated_init_ui_hook) (char *argv0);
720 extern void (*deprecated_command_loop_hook) (void);
721 extern void (*deprecated_show_load_progress) (const char *section,
722 					      unsigned long section_sent,
723 					      unsigned long section_size,
724 					      unsigned long total_sent,
725 					      unsigned long total_size);
726 extern void (*deprecated_print_frame_info_listing_hook) (struct symtab * s,
727 							 int line,
728 							 int stopline,
729 							 int noerror);
730 extern int (*deprecated_query_hook) (const char *, va_list)
731      ATTRIBUTE_FPTR_PRINTF(1,0);
732 extern void (*deprecated_warning_hook) (const char *, va_list)
733      ATTRIBUTE_FPTR_PRINTF(1,0);
734 extern void (*deprecated_flush_hook) (struct ui_file * stream);
735 extern void (*deprecated_interactive_hook) (void);
736 extern void (*deprecated_readline_begin_hook) (char *, ...)
737      ATTRIBUTE_FPTR_PRINTF_1;
738 extern char *(*deprecated_readline_hook) (char *);
739 extern void (*deprecated_readline_end_hook) (void);
740 extern void (*deprecated_register_changed_hook) (int regno);
741 extern void (*deprecated_context_hook) (int);
742 extern ptid_t (*deprecated_target_wait_hook) (ptid_t ptid,
743 					      struct target_waitstatus *status,
744 					      int options);
745 
746 extern void (*deprecated_attach_hook) (void);
747 extern void (*deprecated_detach_hook) (void);
748 extern void (*deprecated_call_command_hook) (struct cmd_list_element * c,
749 					     char *cmd, int from_tty);
750 
751 extern void (*deprecated_set_hook) (struct cmd_list_element * c);
752 
753 extern int (*deprecated_ui_load_progress_hook) (const char *section,
754 						unsigned long num);
755 
756 /* Inhibit window interface if non-zero.  */
757 
758 extern int use_windows;
759 
760 /* Provide default definitions of PIDGET, TIDGET, and MERGEPID.
761    The name ``TIDGET'' is a historical accident.  Many uses of TIDGET
762    in the code actually refer to a lightweight process id, i.e,
763    something that can be considered a process id in its own right for
764    certain purposes.  */
765 
766 #ifndef PIDGET
767 #define PIDGET(PTID) (ptid_get_pid (PTID))
768 #define TIDGET(PTID) (ptid_get_lwp (PTID))
769 #define MERGEPID(PID, TID) ptid_build (PID, TID, 0)
770 #endif
771 
772 /* Define well known filenos if the system does not define them.  */
773 #ifndef STDIN_FILENO
774 #define STDIN_FILENO   0
775 #endif
776 #ifndef STDOUT_FILENO
777 #define STDOUT_FILENO  1
778 #endif
779 #ifndef STDERR_FILENO
780 #define STDERR_FILENO  2
781 #endif
782 
783 /* If this definition isn't overridden by the header files, assume
784    that isatty and fileno exist on this system.  */
785 #ifndef ISATTY
786 #define ISATTY(FP)	(isatty (fileno (FP)))
787 #endif
788 
789 /* A width that can achieve a better legibility for GDB MI mode.  */
790 #define GDB_MI_MSG_WIDTH  80
791 
792 /* From progspace.c */
793 
794 extern void initialize_progspace (void);
795 extern void initialize_inferiors (void);
796 
797 /* For DragonFly kgdb */
798 extern int kernel_debugger;
799 
800 /* Special block numbers */
801 
802 enum block_enum
803 {
804   GLOBAL_BLOCK = 0,
805   STATIC_BLOCK = 1,
806   FIRST_LOCAL_BLOCK = 2
807 };
808 
809 #include "utils.h"
810 
811 #endif /* #ifndef DEFS_H */
812