defs.h revision 98948
1/* *INDENT-OFF* */ /* ATTR_FORMAT confuses indent, avoid running it for now */
2/* Basic, host-specific, and target-specific definitions for GDB.
3   Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
4   1997, 1998, 1999, 2000, 2001, 2002
5   Free Software Foundation, Inc.
6
7   This file is part of GDB.
8
9   This program is free software; you can redistribute it and/or modify
10   it under the terms of the GNU General Public License as published by
11   the Free Software Foundation; either version 2 of the License, or
12   (at your option) any later version.
13
14   This program is distributed in the hope that it will be useful,
15   but WITHOUT ANY WARRANTY; without even the implied warranty of
16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17   GNU General Public License for more details.
18
19   You should have received a copy of the GNU General Public License
20   along with this program; if not, write to the Free Software
21   Foundation, Inc., 59 Temple Place - Suite 330,
22   Boston, MA 02111-1307, USA.  */
23
24#ifndef DEFS_H
25#define DEFS_H
26
27#include "config.h"		/* Generated by configure */
28#include <stdio.h>
29#include <errno.h>		/* System call error return status */
30#include <limits.h>
31
32#ifdef HAVE_STDDEF_H
33#include <stddef.h>
34#else
35#include <sys/types.h>		/* for size_t */
36#endif
37
38#ifdef HAVE_UNISTD_H
39#include <unistd.h>
40#endif
41
42/* Just in case they're not defined in stdio.h. */
43
44#ifndef SEEK_SET
45#define SEEK_SET 0
46#endif
47#ifndef SEEK_CUR
48#define SEEK_CUR 1
49#endif
50
51/* First include ansidecl.h so we can use the various macro definitions
52   here and in all subsequent file inclusions.  */
53
54#include "ansidecl.h"
55
56#include <stdarg.h>		/* for va_list */
57
58#include "libiberty.h"
59
60#include "progress.h"
61
62/* For BFD64 and bfd_vma.  */
63#include "bfd.h"
64
65
66/* The target is partially multi-arched.  Both "tm.h" and the
67   multi-arch vector provide definitions.  "tm.h" normally overrides
68   the multi-arch vector (but there are a few exceptions).  */
69
70#define GDB_MULTI_ARCH_PARTIAL 1
71
72/* The target is partially multi-arched. Both the multi-arch vector
73   and "tm.h" provide definitions. "tm.h" cannot override a definition
74   provided by the multi-arch vector.  It is detected as a compilation
75   error.
76
77   This setting is only useful during a multi-arch conversion. */
78
79#define GDB_MULTI_ARCH_TM 2
80
81/* The target is pure multi-arch.  The MULTI-ARCH vector provides all
82   definitions.  "tm.h" is linked to an empty file. */
83
84#define GDB_MULTI_ARCH_PURE 3
85
86
87
88/* An address in the program being debugged.  Host byte order.  Rather
89   than duplicate all the logic in BFD which figures out what type
90   this is (long, long long, etc.) and whether it needs to be 64
91   bits (the host/target interactions are subtle), we just use
92   bfd_vma.  */
93
94typedef bfd_vma CORE_ADDR;
95
96/* This is to make sure that LONGEST is at least as big as CORE_ADDR.  */
97
98#ifndef LONGEST
99
100#ifdef BFD64
101
102#define LONGEST BFD_HOST_64_BIT
103#define ULONGEST BFD_HOST_U_64_BIT
104
105#else /* No BFD64 */
106
107#ifdef CC_HAS_LONG_LONG
108#define LONGEST long long
109#define ULONGEST unsigned long long
110#else
111#ifdef BFD_HOST_64_BIT
112/* BFD_HOST_64_BIT is defined for some hosts that don't have long long
113   (e.g. i386-windows) so try it.  */
114#define LONGEST BFD_HOST_64_BIT
115#define ULONGEST BFD_HOST_U_64_BIT
116#else
117#define LONGEST long
118#define ULONGEST unsigned long
119#endif
120#endif
121
122#endif /* No BFD64 */
123
124#endif /* ! LONGEST */
125
126#ifndef min
127#define min(a, b) ((a) < (b) ? (a) : (b))
128#endif
129#ifndef max
130#define max(a, b) ((a) > (b) ? (a) : (b))
131#endif
132
133/* Macros to do string compares.
134
135   NOTE: cagney/2000-03-14:
136
137   While old code can continue to refer to these macros, new code is
138   probably better off using strcmp() directly vis: ``strcmp() == 0''
139   and ``strcmp() != 0''.
140
141   This is because modern compilers can directly inline strcmp()
142   making the original justification for these macros - avoid function
143   call overhead by pre-testing the first characters
144   (``*X==*Y?...:0'') - redundant.
145
146   ``Even if [...] testing the first character does have a modest
147   performance improvement, I'd rather that whenever a performance
148   issue is found that we spend the effort on algorithmic
149   optimizations than micro-optimizing.'' J.T. */
150
151#define STREQ(a,b) (*(a) == *(b) ? !strcmp ((a), (b)) : 0)
152#define STREQN(a,b,c) (*(a) == *(b) ? !strncmp ((a), (b), (c)) : 0)
153
154/* The character GNU C++ uses to build identifiers that must be unique from
155   the program's identifiers (such as $this and $$vptr).  */
156#define CPLUS_MARKER '$'	/* May be overridden to '.' for SysV */
157
158/* Check if a character is one of the commonly used C++ marker characters.  */
159extern int is_cplus_marker (int);
160
161/* use tui interface if non-zero */
162extern int tui_version;
163
164/* enable xdb commands if set */
165extern int xdb_commands;
166
167/* enable dbx commands if set */
168extern int dbx_commands;
169
170extern int quit_flag;
171extern int immediate_quit;
172extern int sevenbit_strings;
173
174extern void quit (void);
175
176/* FIXME: cagney/2000-03-13: It has been suggested that the peformance
177   benefits of having a ``QUIT'' macro rather than a function are
178   marginal.  If the overhead of a QUIT function call is proving
179   significant then its calling frequency should probably be reduced
180   [kingdon].  A profile analyzing the current situtation is
181   needed. */
182
183#ifdef QUIT
184/* do twice to force compiler warning */
185#define QUIT_FIXME "FIXME"
186#define QUIT_FIXME "ignoring redefinition of QUIT"
187#else
188#define QUIT { \
189  if (quit_flag) quit (); \
190  if (interactive_hook) interactive_hook (); \
191  PROGRESS (1); \
192}
193#endif
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
200enum 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_java,		/* Java */
207    language_chill,		/* Chill */
208    language_fortran,		/* Fortran */
209    language_m2,		/* Modula-2 */
210    language_asm,		/* Assembly language */
211    language_scm,    		/* Scheme / Guile */
212    language_pascal		/* Pascal */
213  };
214
215enum precision_type
216  {
217    single_precision,
218    double_precision,
219    unspecified_precision
220  };
221
222/* The numbering of these signals is chosen to match traditional unix
223   signals (insofar as various unices use the same numbers, anyway).
224   It is also the numbering of the GDB remote protocol.  Other remote
225   protocols, if they use a different numbering, should make sure to
226   translate appropriately.
227
228   Since these numbers have actually made it out into other software
229   (stubs, etc.), you mustn't disturb the assigned numbering.  If you
230   need to add new signals here, add them to the end of the explicitly
231   numbered signals.
232
233   This is based strongly on Unix/POSIX signals for several reasons:
234   (1) This set of signals represents a widely-accepted attempt to
235   represent events of this sort in a portable fashion, (2) we want a
236   signal to make it from wait to child_wait to the user intact, (3) many
237   remote protocols use a similar encoding.  However, it is
238   recognized that this set of signals has limitations (such as not
239   distinguishing between various kinds of SIGSEGV, or not
240   distinguishing hitting a breakpoint from finishing a single step).
241   So in the future we may get around this either by adding additional
242   signals for breakpoint, single-step, etc., or by adding signal
243   codes; the latter seems more in the spirit of what BSD, System V,
244   etc. are doing to address these issues.  */
245
246/* For an explanation of what each signal means, see
247   target_signal_to_string.  */
248
249enum target_signal
250  {
251    /* Used some places (e.g. stop_signal) to record the concept that
252       there is no signal.  */
253    TARGET_SIGNAL_0 = 0,
254    TARGET_SIGNAL_FIRST = 0,
255    TARGET_SIGNAL_HUP = 1,
256    TARGET_SIGNAL_INT = 2,
257    TARGET_SIGNAL_QUIT = 3,
258    TARGET_SIGNAL_ILL = 4,
259    TARGET_SIGNAL_TRAP = 5,
260    TARGET_SIGNAL_ABRT = 6,
261    TARGET_SIGNAL_EMT = 7,
262    TARGET_SIGNAL_FPE = 8,
263    TARGET_SIGNAL_KILL = 9,
264    TARGET_SIGNAL_BUS = 10,
265    TARGET_SIGNAL_SEGV = 11,
266    TARGET_SIGNAL_SYS = 12,
267    TARGET_SIGNAL_PIPE = 13,
268    TARGET_SIGNAL_ALRM = 14,
269    TARGET_SIGNAL_TERM = 15,
270    TARGET_SIGNAL_URG = 16,
271    TARGET_SIGNAL_STOP = 17,
272    TARGET_SIGNAL_TSTP = 18,
273    TARGET_SIGNAL_CONT = 19,
274    TARGET_SIGNAL_CHLD = 20,
275    TARGET_SIGNAL_TTIN = 21,
276    TARGET_SIGNAL_TTOU = 22,
277    TARGET_SIGNAL_IO = 23,
278    TARGET_SIGNAL_XCPU = 24,
279    TARGET_SIGNAL_XFSZ = 25,
280    TARGET_SIGNAL_VTALRM = 26,
281    TARGET_SIGNAL_PROF = 27,
282    TARGET_SIGNAL_WINCH = 28,
283    TARGET_SIGNAL_LOST = 29,
284    TARGET_SIGNAL_USR1 = 30,
285    TARGET_SIGNAL_USR2 = 31,
286    TARGET_SIGNAL_PWR = 32,
287    /* Similar to SIGIO.  Perhaps they should have the same number.  */
288    TARGET_SIGNAL_POLL = 33,
289    TARGET_SIGNAL_WIND = 34,
290    TARGET_SIGNAL_PHONE = 35,
291    TARGET_SIGNAL_WAITING = 36,
292    TARGET_SIGNAL_LWP = 37,
293    TARGET_SIGNAL_DANGER = 38,
294    TARGET_SIGNAL_GRANT = 39,
295    TARGET_SIGNAL_RETRACT = 40,
296    TARGET_SIGNAL_MSG = 41,
297    TARGET_SIGNAL_SOUND = 42,
298    TARGET_SIGNAL_SAK = 43,
299    TARGET_SIGNAL_PRIO = 44,
300    TARGET_SIGNAL_REALTIME_33 = 45,
301    TARGET_SIGNAL_REALTIME_34 = 46,
302    TARGET_SIGNAL_REALTIME_35 = 47,
303    TARGET_SIGNAL_REALTIME_36 = 48,
304    TARGET_SIGNAL_REALTIME_37 = 49,
305    TARGET_SIGNAL_REALTIME_38 = 50,
306    TARGET_SIGNAL_REALTIME_39 = 51,
307    TARGET_SIGNAL_REALTIME_40 = 52,
308    TARGET_SIGNAL_REALTIME_41 = 53,
309    TARGET_SIGNAL_REALTIME_42 = 54,
310    TARGET_SIGNAL_REALTIME_43 = 55,
311    TARGET_SIGNAL_REALTIME_44 = 56,
312    TARGET_SIGNAL_REALTIME_45 = 57,
313    TARGET_SIGNAL_REALTIME_46 = 58,
314    TARGET_SIGNAL_REALTIME_47 = 59,
315    TARGET_SIGNAL_REALTIME_48 = 60,
316    TARGET_SIGNAL_REALTIME_49 = 61,
317    TARGET_SIGNAL_REALTIME_50 = 62,
318    TARGET_SIGNAL_REALTIME_51 = 63,
319    TARGET_SIGNAL_REALTIME_52 = 64,
320    TARGET_SIGNAL_REALTIME_53 = 65,
321    TARGET_SIGNAL_REALTIME_54 = 66,
322    TARGET_SIGNAL_REALTIME_55 = 67,
323    TARGET_SIGNAL_REALTIME_56 = 68,
324    TARGET_SIGNAL_REALTIME_57 = 69,
325    TARGET_SIGNAL_REALTIME_58 = 70,
326    TARGET_SIGNAL_REALTIME_59 = 71,
327    TARGET_SIGNAL_REALTIME_60 = 72,
328    TARGET_SIGNAL_REALTIME_61 = 73,
329    TARGET_SIGNAL_REALTIME_62 = 74,
330    TARGET_SIGNAL_REALTIME_63 = 75,
331
332    /* Used internally by Solaris threads.  See signal(5) on Solaris.  */
333    TARGET_SIGNAL_CANCEL = 76,
334
335    /* Yes, this pains me, too.  But LynxOS didn't have SIG32, and now
336       GNU/Linux does, and we can't disturb the numbering, since it's
337       part of the remote protocol.  Note that in some GDB's
338       TARGET_SIGNAL_REALTIME_32 is number 76.  */
339    TARGET_SIGNAL_REALTIME_32,
340    /* Yet another pain, IRIX 6 has SIG64. */
341    TARGET_SIGNAL_REALTIME_64,
342    /* Yet another pain, GNU/Linux MIPS might go up to 128. */
343    TARGET_SIGNAL_REALTIME_65,
344    TARGET_SIGNAL_REALTIME_66,
345    TARGET_SIGNAL_REALTIME_67,
346    TARGET_SIGNAL_REALTIME_68,
347    TARGET_SIGNAL_REALTIME_69,
348    TARGET_SIGNAL_REALTIME_70,
349    TARGET_SIGNAL_REALTIME_71,
350    TARGET_SIGNAL_REALTIME_72,
351    TARGET_SIGNAL_REALTIME_73,
352    TARGET_SIGNAL_REALTIME_74,
353    TARGET_SIGNAL_REALTIME_75,
354    TARGET_SIGNAL_REALTIME_76,
355    TARGET_SIGNAL_REALTIME_77,
356    TARGET_SIGNAL_REALTIME_78,
357    TARGET_SIGNAL_REALTIME_79,
358    TARGET_SIGNAL_REALTIME_80,
359    TARGET_SIGNAL_REALTIME_81,
360    TARGET_SIGNAL_REALTIME_82,
361    TARGET_SIGNAL_REALTIME_83,
362    TARGET_SIGNAL_REALTIME_84,
363    TARGET_SIGNAL_REALTIME_85,
364    TARGET_SIGNAL_REALTIME_86,
365    TARGET_SIGNAL_REALTIME_87,
366    TARGET_SIGNAL_REALTIME_88,
367    TARGET_SIGNAL_REALTIME_89,
368    TARGET_SIGNAL_REALTIME_90,
369    TARGET_SIGNAL_REALTIME_91,
370    TARGET_SIGNAL_REALTIME_92,
371    TARGET_SIGNAL_REALTIME_93,
372    TARGET_SIGNAL_REALTIME_94,
373    TARGET_SIGNAL_REALTIME_95,
374    TARGET_SIGNAL_REALTIME_96,
375    TARGET_SIGNAL_REALTIME_97,
376    TARGET_SIGNAL_REALTIME_98,
377    TARGET_SIGNAL_REALTIME_99,
378    TARGET_SIGNAL_REALTIME_100,
379    TARGET_SIGNAL_REALTIME_101,
380    TARGET_SIGNAL_REALTIME_102,
381    TARGET_SIGNAL_REALTIME_103,
382    TARGET_SIGNAL_REALTIME_104,
383    TARGET_SIGNAL_REALTIME_105,
384    TARGET_SIGNAL_REALTIME_106,
385    TARGET_SIGNAL_REALTIME_107,
386    TARGET_SIGNAL_REALTIME_108,
387    TARGET_SIGNAL_REALTIME_109,
388    TARGET_SIGNAL_REALTIME_110,
389    TARGET_SIGNAL_REALTIME_111,
390    TARGET_SIGNAL_REALTIME_112,
391    TARGET_SIGNAL_REALTIME_113,
392    TARGET_SIGNAL_REALTIME_114,
393    TARGET_SIGNAL_REALTIME_115,
394    TARGET_SIGNAL_REALTIME_116,
395    TARGET_SIGNAL_REALTIME_117,
396    TARGET_SIGNAL_REALTIME_118,
397    TARGET_SIGNAL_REALTIME_119,
398    TARGET_SIGNAL_REALTIME_120,
399    TARGET_SIGNAL_REALTIME_121,
400    TARGET_SIGNAL_REALTIME_122,
401    TARGET_SIGNAL_REALTIME_123,
402    TARGET_SIGNAL_REALTIME_124,
403    TARGET_SIGNAL_REALTIME_125,
404    TARGET_SIGNAL_REALTIME_126,
405    TARGET_SIGNAL_REALTIME_127,
406
407#if defined(MACH) || defined(__MACH__)
408    /* Mach exceptions */
409    TARGET_EXC_BAD_ACCESS,
410    TARGET_EXC_BAD_INSTRUCTION,
411    TARGET_EXC_ARITHMETIC,
412    TARGET_EXC_EMULATION,
413    TARGET_EXC_SOFTWARE,
414    TARGET_EXC_BREAKPOINT,
415#endif
416    TARGET_SIGNAL_INFO,
417
418    /* Some signal we don't know about.  */
419    TARGET_SIGNAL_UNKNOWN,
420
421    /* Use whatever signal we use when one is not specifically specified
422       (for passing to proceed and so on).  */
423    TARGET_SIGNAL_DEFAULT,
424
425    /* Last and unused enum value, for sizing arrays, etc.  */
426    TARGET_SIGNAL_LAST
427  };
428
429/* the cleanup list records things that have to be undone
430   if an error happens (descriptors to be closed, memory to be freed, etc.)
431   Each link in the chain records a function to call and an
432   argument to give it.
433
434   Use make_cleanup to add an element to the cleanup chain.
435   Use do_cleanups to do all cleanup actions back to a given
436   point in the chain.  Use discard_cleanups to remove cleanups
437   from the chain back to a given point, not doing them.  */
438
439struct cleanup
440  {
441    struct cleanup *next;
442    void (*function) (PTR);
443    PTR arg;
444  };
445
446
447/* The ability to declare that a function never returns is useful, but
448   not really required to compile GDB successfully, so the NORETURN and
449   ATTR_NORETURN macros normally expand into nothing.  */
450
451/* If compiling with older versions of GCC, a function may be declared
452   "volatile" to indicate that it does not return.  */
453
454#ifndef NORETURN
455#if defined(__GNUC__) \
456     && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
457#define NORETURN volatile
458#else
459#define NORETURN		/* nothing */
460#endif
461#endif
462
463/* GCC 2.5 and later versions define a function attribute "noreturn",
464   which is the preferred way to declare that a function never returns.
465   However GCC 2.7 appears to be the first version in which this fully
466   works everywhere we use it. */
467
468#ifndef ATTR_NORETURN
469#if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 7))
470#define ATTR_NORETURN __attribute__ ((noreturn))
471#else
472#define ATTR_NORETURN		/* nothing */
473#endif
474#endif
475
476#ifndef ATTR_FORMAT
477#if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 4))
478#define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
479#else
480#define ATTR_FORMAT(type, x, y)	/* nothing */
481#endif
482#endif
483
484/* Needed for various prototypes */
485
486struct symtab;
487struct breakpoint;
488
489/* From blockframe.c */
490
491extern int inside_entry_func (CORE_ADDR);
492
493extern int inside_entry_file (CORE_ADDR addr);
494
495extern int inside_main_func (CORE_ADDR pc);
496
497/* From ch-lang.c, for the moment. (FIXME) */
498
499extern char *chill_demangle (const char *);
500
501/* From utils.c */
502
503extern void initialize_utils (void);
504
505extern void notice_quit (void);
506
507extern int strcmp_iw (const char *, const char *);
508
509extern int subset_compare (char *, char *);
510
511extern char *safe_strerror (int);
512
513extern void init_malloc (void *);
514
515extern void request_quit (int);
516
517extern void do_cleanups (struct cleanup *);
518extern void do_final_cleanups (struct cleanup *);
519extern void do_my_cleanups (struct cleanup **, struct cleanup *);
520extern void do_run_cleanups (struct cleanup *);
521extern void do_exec_cleanups (struct cleanup *);
522extern void do_exec_error_cleanups (struct cleanup *);
523
524extern void discard_cleanups (struct cleanup *);
525extern void discard_final_cleanups (struct cleanup *);
526extern void discard_exec_error_cleanups (struct cleanup *);
527extern void discard_my_cleanups (struct cleanup **, struct cleanup *);
528
529/* NOTE: cagney/2000-03-04: This typedef is strictly for the
530   make_cleanup function declarations below. Do not use this typedef
531   as a cast when passing functions into the make_cleanup() code.
532   Instead either use a bounce function or add a wrapper function.
533   Calling a f(char*) function with f(void*) is non-portable. */
534typedef void (make_cleanup_ftype) (void *);
535
536extern struct cleanup *make_cleanup (make_cleanup_ftype *, void *);
537
538extern struct cleanup *make_cleanup_freeargv (char **);
539
540struct ui_file;
541extern struct cleanup *make_cleanup_ui_file_delete (struct ui_file *);
542
543extern struct cleanup *make_cleanup_close (int fd);
544
545extern struct cleanup *make_cleanup_bfd_close (bfd *abfd);
546
547extern struct cleanup *make_final_cleanup (make_cleanup_ftype *, void *);
548
549extern struct cleanup *make_my_cleanup (struct cleanup **,
550					make_cleanup_ftype *, void *);
551
552extern struct cleanup *make_run_cleanup (make_cleanup_ftype *, void *);
553
554extern struct cleanup *make_exec_cleanup (make_cleanup_ftype *, void *);
555extern struct cleanup *make_exec_error_cleanup (make_cleanup_ftype *, void *);
556
557extern struct cleanup *save_cleanups (void);
558extern struct cleanup *save_final_cleanups (void);
559extern struct cleanup *save_my_cleanups (struct cleanup **);
560
561extern void restore_cleanups (struct cleanup *);
562extern void restore_final_cleanups (struct cleanup *);
563extern void restore_my_cleanups (struct cleanup **, struct cleanup *);
564
565extern void free_current_contents (void *);
566
567extern void null_cleanup (void *);
568
569extern int myread (int, char *, int);
570
571extern int query (const char *, ...) ATTR_FORMAT (printf, 1, 2);
572
573extern void init_page_info (void);
574
575extern CORE_ADDR host_pointer_to_address (void *ptr);
576extern void *address_to_host_pointer (CORE_ADDR addr);
577
578extern char *gdb_realpath (const char *);
579
580/* From demangle.c */
581
582extern void set_demangling_style (char *);
583
584/* From tm.h */
585
586struct type;
587typedef int (use_struct_convention_fn) (int gcc_p, struct type * value_type);
588extern use_struct_convention_fn generic_use_struct_convention;
589
590typedef unsigned char *(breakpoint_from_pc_fn) (CORE_ADDR * pcptr, int *lenptr);
591
592/* Annotation stuff.  */
593
594extern int annotation_level;	/* in stack.c */
595
596extern void begin_line (void);
597
598extern void wrap_here (char *);
599
600extern void reinitialize_more_filter (void);
601
602/* Normal results */
603extern struct ui_file *gdb_stdout;
604/* Serious error notifications */
605extern struct ui_file *gdb_stderr;
606/* Log/debug/trace messages that should bypass normal stdout/stderr
607   filtering.  For momement, always call this stream using
608   *_unfiltered. In the very near future that restriction shall be
609   removed - either call shall be unfiltered. (cagney 1999-06-13). */
610extern struct ui_file *gdb_stdlog;
611/* Target output that should bypass normal stdout/stderr filtering.
612   For momement, always call this stream using *_unfiltered. In the
613   very near future that restriction shall be removed - either call
614   shall be unfiltered. (cagney 1999-07-02). */
615extern struct ui_file *gdb_stdtarg;
616
617#if defined(TUI)
618#include "tui.h"
619#endif
620
621#include "ui-file.h"
622
623/* More generic printf like operations.  Filtered versions may return
624   non-locally on error.  */
625
626extern void fputs_filtered (const char *, struct ui_file *);
627
628extern void fputs_unfiltered (const char *, struct ui_file *);
629
630extern int fputc_filtered (int c, struct ui_file *);
631
632extern int fputc_unfiltered (int c, struct ui_file *);
633
634extern int putchar_filtered (int c);
635
636extern int putchar_unfiltered (int c);
637
638extern void puts_filtered (const char *);
639
640extern void puts_unfiltered (const char *);
641
642extern void puts_debug (char *prefix, char *string, char *suffix);
643
644extern void vprintf_filtered (const char *, va_list) ATTR_FORMAT (printf, 1, 0);
645
646extern void vfprintf_filtered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0);
647
648extern void fprintf_filtered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3);
649
650extern void fprintfi_filtered (int, struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 3, 4);
651
652extern void printf_filtered (const char *, ...) ATTR_FORMAT (printf, 1, 2);
653
654extern void printfi_filtered (int, const char *, ...) ATTR_FORMAT (printf, 2, 3);
655
656extern void vprintf_unfiltered (const char *, va_list) ATTR_FORMAT (printf, 1, 0);
657
658extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0);
659
660extern void fprintf_unfiltered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3);
661
662extern void printf_unfiltered (const char *, ...) ATTR_FORMAT (printf, 1, 2);
663
664extern void print_spaces (int, struct ui_file *);
665
666extern void print_spaces_filtered (int, struct ui_file *);
667
668extern char *n_spaces (int);
669
670extern void fputstr_filtered (const char *str, int quotr, struct ui_file * stream);
671
672extern void fputstr_unfiltered (const char *str, int quotr, struct ui_file * stream);
673
674extern void fputstrn_unfiltered (const char *str, int n, int quotr, struct ui_file * stream);
675
676/* Display the host ADDR on STREAM formatted as ``0x%x''. */
677extern void gdb_print_host_address (void *addr, struct ui_file *stream);
678
679/* Convert a CORE_ADDR into a HEX string.  paddr() is like %08lx.
680   paddr_nz() is like %lx.  paddr_u() is like %lu. paddr_width() is
681   for ``%*''. */
682extern int strlen_paddr (void);
683extern char *paddr (CORE_ADDR addr);
684extern char *paddr_nz (CORE_ADDR addr);
685extern char *paddr_u (CORE_ADDR addr);
686extern char *paddr_d (LONGEST addr);
687
688extern char *phex (ULONGEST l, int sizeof_l);
689extern char *phex_nz (ULONGEST l, int sizeof_l);
690
691/* Like paddr() only print/scan raw CORE_ADDR.  The output from
692   core_addr_to_string() can be passed direct to
693   string_to_core_addr().  */
694extern const char *core_addr_to_string (const CORE_ADDR addr);
695extern const char *core_addr_to_string_nz (const CORE_ADDR addr);
696extern CORE_ADDR string_to_core_addr (const char *my_string);
697
698extern void fprintf_symbol_filtered (struct ui_file *, char *,
699				     enum language, int);
700
701extern NORETURN void perror_with_name (const char *) ATTR_NORETURN;
702
703extern void print_sys_errmsg (const char *, int);
704
705/* From regex.c or libc.  BSD 4.4 declares this with the argument type as
706   "const char *" in unistd.h, so we can't declare the argument
707   as "char *".  */
708
709extern char *re_comp (const char *);
710
711/* From symfile.c */
712
713extern void symbol_file_command (char *, int);
714
715/* Remote targets may wish to use this as their load function.  */
716extern void generic_load (char *name, int from_tty);
717
718/* Summarise a download */
719extern void print_transfer_performance (struct ui_file *stream,
720					unsigned long data_count,
721					unsigned long write_count,
722					unsigned long time_count);
723
724/* From top.c */
725
726typedef void initialize_file_ftype (void);
727
728extern char *skip_quoted (char *);
729
730extern char *gdb_readline (char *);
731
732extern char *command_line_input (char *, int, char *);
733
734extern void print_prompt (void);
735
736extern int input_from_terminal_p (void);
737
738extern int info_verbose;
739
740/* From printcmd.c */
741
742extern void set_next_address (CORE_ADDR);
743
744extern void print_address_symbolic (CORE_ADDR, struct ui_file *, int,
745				    char *);
746
747extern int build_address_symbolic (CORE_ADDR addr,
748				   int do_demangle,
749				   char **name,
750				   int *offset,
751				   char **filename,
752				   int *line,
753				   int *unmapped);
754
755extern void print_address_numeric (CORE_ADDR, int, struct ui_file *);
756
757extern void print_address (CORE_ADDR, struct ui_file *);
758
759/* From source.c */
760
761extern int openp (const char *, int, const char *, int, int, char **);
762
763extern int source_full_path_of (char *, char **);
764
765extern void mod_path (char *, char **);
766
767extern void directory_command (char *, int);
768
769extern void init_source_path (void);
770
771extern char *symtab_to_filename (struct symtab *);
772
773/* From exec.c */
774
775extern void exec_set_section_offsets (bfd_signed_vma text_off,
776				      bfd_signed_vma data_off,
777				      bfd_signed_vma bss_off);
778
779/* Take over the 'find_mapped_memory' vector from exec.c. */
780extern void exec_set_find_memory_regions (int (*) (int (*) (CORE_ADDR,
781							    unsigned long,
782							    int, int, int,
783							    void *),
784						   void *));
785
786/* From findvar.c */
787
788extern int read_relative_register_raw_bytes (int, char *);
789
790/* Possible lvalue types.  Like enum language, this should be in
791   value.h, but needs to be here for the same reason. */
792
793enum lval_type
794  {
795    /* Not an lval. */
796    not_lval,
797    /* In memory.  Could be a saved register.  */
798    lval_memory,
799    /* In a register.  */
800    lval_register,
801    /* In a gdb internal variable.  */
802    lval_internalvar,
803    /* Part of a gdb internal variable (structure field).  */
804    lval_internalvar_component,
805    /* In a register series in a frame not the current one, which may have been
806       partially saved or saved in different places (otherwise would be
807       lval_register or lval_memory).  */
808    lval_reg_frame_relative
809  };
810
811struct frame_info;
812
813/* From readline (but not in any readline .h files).  */
814
815extern char *tilde_expand (char *);
816
817/* Control types for commands */
818
819enum misc_command_type
820  {
821    ok_command,
822    end_command,
823    else_command,
824    nop_command
825  };
826
827enum command_control_type
828  {
829    simple_control,
830    break_control,
831    continue_control,
832    while_control,
833    if_control,
834    invalid_control
835  };
836
837/* Structure for saved commands lines
838   (for breakpoints, defined commands, etc).  */
839
840struct command_line
841  {
842    struct command_line *next;
843    char *line;
844    enum command_control_type control_type;
845    int body_count;
846    struct command_line **body_list;
847  };
848
849extern struct command_line *read_command_lines (char *, int);
850
851extern void free_command_lines (struct command_line **);
852
853/* To continue the execution commands when running gdb asynchronously.
854   A continuation structure contains a pointer to a function to be called
855   to finish the command, once the target has stopped. Such mechanism is
856   used bt the finish and until commands, and in the remote protocol
857   when opening an extended-remote connection. */
858
859struct continuation_arg
860  {
861    struct continuation_arg *next;
862    union continuation_data {
863      void *pointer;
864      int   integer;
865      long  longint;
866    } data;
867  };
868
869struct continuation
870  {
871    void (*continuation_hook) (struct continuation_arg *);
872    struct continuation_arg *arg_list;
873    struct continuation *next;
874  };
875
876/* In infrun.c. */
877extern struct continuation *cmd_continuation;
878/* Used only by the step_1 function. */
879extern struct continuation *intermediate_continuation;
880
881/* From utils.c */
882extern void add_continuation (void (*)(struct continuation_arg *),
883			      struct continuation_arg *);
884extern void do_all_continuations (void);
885extern void discard_all_continuations (void);
886
887extern void add_intermediate_continuation (void (*)(struct continuation_arg *),
888			      struct continuation_arg *);
889extern void do_all_intermediate_continuations (void);
890extern void discard_all_intermediate_continuations (void);
891
892/* String containing the current directory (what getwd would return).  */
893
894extern char *current_directory;
895
896/* Default radixes for input and output.  Only some values supported.  */
897extern unsigned input_radix;
898extern unsigned output_radix;
899
900/* Possibilities for prettyprint parameters to routines which print
901   things.  Like enum language, this should be in value.h, but needs
902   to be here for the same reason.  FIXME:  If we can eliminate this
903   as an arg to LA_VAL_PRINT, then we can probably move it back to
904   value.h. */
905
906enum val_prettyprint
907  {
908    Val_no_prettyprint = 0,
909    Val_prettyprint,
910    /* Use the default setting which the user has specified.  */
911    Val_pretty_default
912  };
913
914/* The ptid struct is a collection of the various "ids" necessary
915   for identifying the inferior.  This consists of the process id
916   (pid), thread id (tid), and other fields necessary for uniquely
917   identifying the inferior process/thread being debugged.  When
918   manipulating ptids, the constructors, accessors, and predicate
919   declared in inferior.h should be used.  These are as follows:
920
921      ptid_build	- Make a new ptid from a pid, lwp, and tid.
922      pid_to_ptid	- Make a new ptid from just a pid.
923      ptid_get_pid	- Fetch the pid component of a ptid.
924      ptid_get_lwp	- Fetch the lwp component of a ptid.
925      ptid_get_tid	- Fetch the tid component of a ptid.
926      ptid_equal	- Test to see if two ptids are equal.
927
928   Please do NOT access the struct ptid members directly (except, of
929   course, in the implementation of the above ptid manipulation
930   functions).  */
931
932struct ptid
933  {
934    /* Process id */
935    int pid;
936
937    /* Lightweight process id */
938    long lwp;
939
940    /* Thread id */
941    long tid;
942  };
943
944typedef struct ptid ptid_t;
945
946
947
948/* Optional host machine definition.  Pure autoconf targets will not
949   need a "xm.h" file.  This will be a symlink to one of the xm-*.h
950   files, built by the `configure' script.  */
951
952#ifdef GDB_XM_FILE
953#include "xm.h"
954#endif
955
956/* Optional native machine support.  Non-native (and possibly pure
957   multi-arch) targets do not need a "nm.h" file.  This will be a
958   symlink to one of the nm-*.h files, built by the `configure'
959   script.  */
960
961#ifdef GDB_NM_FILE
962#include "nm.h"
963#endif
964
965/* Optional target machine definition.  Pure multi-arch configurations
966   do not need a "tm.h" file.  This will be a symlink to one of the
967   tm-*.h files, built by the `configure' script.  */
968
969#ifdef GDB_TM_FILE
970#include "tm.h"
971#endif
972
973/* GDB_MULTI_ARCH is normally set by configure.in using information
974   from configure.tgt or the config/%/%.mt Makefile fragment.  Since
975   some targets have defined it in their "tm.h" file, delay providing
976   a default definition until after "tm.h" has been included.. */
977
978#ifndef GDB_MULTI_ARCH
979#define GDB_MULTI_ARCH 0
980#endif
981
982
983/* If the xm.h file did not define the mode string used to open the
984   files, assume that binary files are opened the same way as text
985   files */
986#ifndef FOPEN_RB
987#include "fopen-same.h"
988#endif
989
990/* Defaults for system-wide constants (if not defined by xm.h, we fake it).
991   FIXME: Assumes 2's complement arithmetic */
992
993#if !defined (UINT_MAX)
994#define	UINT_MAX ((unsigned int)(~0))	/* 0xFFFFFFFF for 32-bits */
995#endif
996
997#if !defined (INT_MAX)
998#define	INT_MAX ((int)(UINT_MAX >> 1))	/* 0x7FFFFFFF for 32-bits */
999#endif
1000
1001#if !defined (INT_MIN)
1002#define INT_MIN ((int)((int) ~0 ^ INT_MAX))	/* 0x80000000 for 32-bits */
1003#endif
1004
1005#if !defined (ULONG_MAX)
1006#define	ULONG_MAX ((unsigned long)(~0L))	/* 0xFFFFFFFF for 32-bits */
1007#endif
1008
1009#if !defined (LONG_MAX)
1010#define	LONG_MAX ((long)(ULONG_MAX >> 1))	/* 0x7FFFFFFF for 32-bits */
1011#endif
1012
1013#if !defined (ULONGEST_MAX)
1014#define	ULONGEST_MAX (~(ULONGEST)0)        /* 0xFFFFFFFFFFFFFFFF for 64-bits */
1015#endif
1016
1017#if !defined (LONGEST_MAX)                 /* 0x7FFFFFFFFFFFFFFF for 64-bits */
1018#define	LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
1019#endif
1020
1021/* Convert a LONGEST to an int.  This is used in contexts (e.g. number of
1022   arguments to a function, number in a value history, register number, etc.)
1023   where the value must not be larger than can fit in an int.  */
1024
1025extern int longest_to_int (LONGEST);
1026
1027/* Assorted functions we can declare, now that const and volatile are
1028   defined.  */
1029
1030extern char *savestring (const char *, size_t);
1031
1032extern char *msavestring (void *, const char *, size_t);
1033
1034extern char *mstrsave (void *, const char *);
1035
1036/* Robust versions of same.  Throw an internal error when no memory,
1037   guard against stray NULL arguments. */
1038extern void *xmmalloc (void *md, size_t size);
1039extern void *xmrealloc (void *md, void *ptr, size_t size);
1040extern void *xmcalloc (void *md, size_t number, size_t size);
1041extern void xmfree (void *md, void *ptr);
1042
1043/* xmalloc(), xrealloc() and xcalloc() have already been declared in
1044   "libiberty.h". */
1045extern void xfree (void *);
1046
1047/* Like asprintf/vasprintf but get an internal_error if the call
1048   fails. */
1049extern void xasprintf (char **ret, const char *format, ...) ATTR_FORMAT (printf, 2, 3);
1050extern void xvasprintf (char **ret, const char *format, va_list ap);
1051
1052extern int parse_escape (char **);
1053
1054/* Message to be printed before the error message, when an error occurs.  */
1055
1056extern char *error_pre_print;
1057
1058/* Message to be printed before the error message, when an error occurs.  */
1059
1060extern char *quit_pre_print;
1061
1062/* Message to be printed before the warning message, when a warning occurs.  */
1063
1064extern char *warning_pre_print;
1065
1066extern NORETURN void verror (const char *fmt, va_list ap) ATTR_NORETURN;
1067
1068extern NORETURN void error (const char *fmt, ...) ATTR_NORETURN;
1069
1070extern NORETURN void error_stream (struct ui_file *) ATTR_NORETURN;
1071
1072/* Returns a freshly allocate buffer containing the last error
1073   message.  */
1074extern char *error_last_message (void);
1075
1076extern NORETURN void internal_verror (const char *file, int line,
1077				      const char *, va_list ap) ATTR_NORETURN;
1078
1079extern NORETURN void internal_error (const char *file, int line,
1080				     const char *, ...) ATTR_NORETURN ATTR_FORMAT (printf, 3, 4);
1081
1082extern NORETURN void nomem (long) ATTR_NORETURN;
1083
1084/* Reasons for calling throw_exception().  NOTE: all reason values
1085   must be less than zero.  enum value 0 is reserved for internal use
1086   as the return value from an initial setjmp().  The function
1087   catch_exceptions() reserves values >= 0 as legal results from its
1088   wrapped function.  */
1089
1090enum return_reason
1091  {
1092    /* User interrupt.  */
1093    RETURN_QUIT = -2,
1094    /* Any other error.  */
1095    RETURN_ERROR
1096  };
1097
1098#define	ALL_CLEANUPS	((struct cleanup *)0)
1099
1100#define RETURN_MASK(reason)	(1 << (int)(-reason))
1101#define RETURN_MASK_QUIT	RETURN_MASK (RETURN_QUIT)
1102#define RETURN_MASK_ERROR	RETURN_MASK (RETURN_ERROR)
1103#define RETURN_MASK_ALL		(RETURN_MASK_QUIT | RETURN_MASK_ERROR)
1104typedef int return_mask;
1105
1106/* Throw an exception of type RETURN_REASON.  Will execute a LONG JUMP
1107   to the inner most containing exception handler established using
1108   catch_exceptions() (or the legacy catch_errors()).
1109
1110   Code normally throws an exception using error() et.al.  For various
1111   reaons, GDB also contains code that throws an exception directly.
1112   For instance, the remote*.c targets contain CNTRL-C signal handlers
1113   that propogate the QUIT event up the exception chain.  ``This could
1114   be a good thing or a dangerous thing.'' -- the Existential Wombat.  */
1115
1116extern NORETURN void throw_exception (enum return_reason) ATTR_NORETURN;
1117
1118/* Call FUNC(UIOUT, FUNC_ARGS) but wrapped within an exception
1119   handler.  If an exception (enum return_reason) is thrown using
1120   throw_exception() than all cleanups installed since
1121   catch_exceptions() was entered are invoked, the (-ve) exception
1122   value is then returned by catch_exceptions.  If FUNC() returns
1123   normally (with a postive or zero return value) then that value is
1124   returned by catch_exceptions().  It is an internal_error() for
1125   FUNC() to return a negative value.
1126
1127   For the period of the FUNC() call: UIOUT is installed as the output
1128   builder; ERRSTRING is installed as the error/quit message; and a
1129   new cleanup_chain is established.  The old values are restored
1130   before catch_exceptions() returns.
1131
1132   FIXME; cagney/2001-08-13: The need to override the global UIOUT
1133   builder variable should just go away.
1134
1135   This function superseeds catch_errors().
1136
1137   This function uses SETJMP() and LONGJUMP().  */
1138
1139struct ui_out;
1140typedef int (catch_exceptions_ftype) (struct ui_out *ui_out, void *args);
1141extern int catch_exceptions (struct ui_out *uiout,
1142			     catch_exceptions_ftype *func, void *func_args,
1143			     char *errstring, return_mask mask);
1144
1145/* If CATCH_ERRORS_FTYPE throws an error, catch_errors() returns zero
1146   otherwize the result from CATCH_ERRORS_FTYPE is returned. It is
1147   probably useful for CATCH_ERRORS_FTYPE to always return a non-zero
1148   value. It's unfortunate that, catch_errors() does not return an
1149   indication of the exact exception that it caught - quit_flag might
1150   help.
1151
1152   This function is superseeded by catch_exceptions().  */
1153
1154typedef int (catch_errors_ftype) (PTR);
1155extern int catch_errors (catch_errors_ftype *, void *, char *, return_mask);
1156
1157/* Template to catch_errors() that wraps calls to command
1158   functions. */
1159
1160typedef void (catch_command_errors_ftype) (char *, int);
1161extern int catch_command_errors (catch_command_errors_ftype *func, char *command, int from_tty, return_mask);
1162
1163extern void warning (const char *, ...) ATTR_FORMAT (printf, 1, 2);
1164
1165extern void vwarning (const char *, va_list args);
1166
1167/* Global functions from other, non-gdb GNU thingies.
1168   Libiberty thingies are no longer declared here.  We include libiberty.h
1169   above, instead.  */
1170
1171#ifndef GETENV_PROVIDED
1172extern char *getenv (const char *);
1173#endif
1174
1175/* From other system libraries */
1176
1177#ifdef HAVE_STDDEF_H
1178#include <stddef.h>
1179#endif
1180
1181#ifdef HAVE_STDLIB_H
1182#include <stdlib.h>
1183#endif
1184#ifndef min
1185#define min(a, b) ((a) < (b) ? (a) : (b))
1186#endif
1187#ifndef max
1188#define max(a, b) ((a) > (b) ? (a) : (b))
1189#endif
1190
1191
1192/* We take the address of fclose later, but some stdio's forget
1193   to declare this.  We can't always declare it since there's
1194   no way to declare the parameters without upsetting some compiler
1195   somewhere. */
1196
1197#ifndef FCLOSE_PROVIDED
1198extern int fclose (FILE *);
1199#endif
1200
1201#ifndef atof
1202extern double atof (const char *);	/* X3.159-1989  4.10.1.1 */
1203#endif
1204
1205/* Various possibilities for alloca.  */
1206#ifndef alloca
1207#ifdef __GNUC__
1208#define alloca __builtin_alloca
1209#else /* Not GNU C */
1210#ifdef HAVE_ALLOCA_H
1211#include <alloca.h>
1212#else
1213#ifdef _AIX
1214#pragma alloca
1215#else
1216
1217/* We need to be careful not to declare this in a way which conflicts with
1218   bison.  Bison never declares it as char *, but under various circumstances
1219   (like __hpux) we need to use void *.  */
1220extern void *alloca ();
1221#endif /* Not _AIX */
1222#endif /* Not HAVE_ALLOCA_H */
1223#endif /* Not GNU C */
1224#endif /* alloca not defined */
1225
1226/* Dynamic target-system-dependent parameters for GDB. */
1227#include "gdbarch.h"
1228#if (GDB_MULTI_ARCH == 0)
1229/* Multi-arch targets _should_ be including "arch-utils.h" directly
1230   into their *-tdep.c file.  This is a prop to help old non-
1231   multi-arch targets to continue to compile. */
1232#include "arch-utils.h"
1233#endif
1234
1235/* Static target-system-dependent parameters for GDB. */
1236
1237/* Number of bits in a char or unsigned char for the target machine.
1238   Just like CHAR_BIT in <limits.h> but describes the target machine.  */
1239#if !defined (TARGET_CHAR_BIT)
1240#define TARGET_CHAR_BIT 8
1241#endif
1242
1243/* If we picked up a copy of CHAR_BIT from a configuration file
1244   (which may get it by including <limits.h>) then use it to set
1245   the number of bits in a host char.  If not, use the same size
1246   as the target. */
1247
1248#if defined (CHAR_BIT)
1249#define HOST_CHAR_BIT CHAR_BIT
1250#else
1251#define HOST_CHAR_BIT TARGET_CHAR_BIT
1252#endif
1253
1254/* The bit byte-order has to do just with numbering of bits in
1255   debugging symbols and such.  Conceptually, it's quite separate
1256   from byte/word byte order.  */
1257
1258#if !defined (BITS_BIG_ENDIAN)
1259#define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BFD_ENDIAN_BIG)
1260#endif
1261
1262/* In findvar.c.  */
1263
1264extern LONGEST extract_signed_integer (void *, int);
1265
1266extern ULONGEST extract_unsigned_integer (void *, int);
1267
1268extern int extract_long_unsigned_integer (void *, int, LONGEST *);
1269
1270extern CORE_ADDR extract_address (void *, int);
1271
1272extern CORE_ADDR extract_typed_address (void *buf, struct type *type);
1273
1274extern void store_signed_integer (void *, int, LONGEST);
1275
1276extern void store_unsigned_integer (void *, int, ULONGEST);
1277
1278extern void store_address (void *, int, LONGEST);
1279
1280extern void store_typed_address (void *buf, struct type *type, CORE_ADDR addr);
1281
1282
1283/* From valops.c */
1284
1285extern CORE_ADDR push_bytes (CORE_ADDR, char *, int);
1286
1287extern CORE_ADDR push_word (CORE_ADDR, ULONGEST);
1288
1289extern int watchdog;
1290
1291/* Hooks for alternate command interfaces.  */
1292
1293/* The name of the interpreter if specified on the command line. */
1294extern char *interpreter_p;
1295
1296/* If a given interpreter matches INTERPRETER_P then it should update
1297   command_loop_hook and init_ui_hook with the per-interpreter
1298   implementation. */
1299/* FIXME: command_loop_hook and init_ui_hook should be moved here. */
1300
1301struct target_waitstatus;
1302struct cmd_list_element;
1303
1304/* Should the asynchronous variant of the interpreter (using the
1305   event-loop) be enabled? */
1306extern int event_loop_p;
1307
1308extern void (*init_ui_hook) (char *argv0);
1309extern void (*command_loop_hook) (void);
1310extern void (*show_load_progress) (const char *section,
1311				   unsigned long section_sent,
1312				   unsigned long section_size,
1313				   unsigned long total_sent,
1314				   unsigned long total_size);
1315extern void (*print_frame_info_listing_hook) (struct symtab * s,
1316					      int line, int stopline,
1317					      int noerror);
1318extern struct frame_info *parse_frame_specification (char *frame_exp);
1319extern int (*query_hook) (const char *, va_list);
1320extern void (*warning_hook) (const char *, va_list);
1321extern void (*flush_hook) (struct ui_file * stream);
1322extern void (*create_breakpoint_hook) (struct breakpoint * b);
1323extern void (*delete_breakpoint_hook) (struct breakpoint * bpt);
1324extern void (*modify_breakpoint_hook) (struct breakpoint * bpt);
1325extern void (*interactive_hook) (void);
1326extern void (*registers_changed_hook) (void);
1327extern void (*readline_begin_hook) (char *,...);
1328extern char *(*readline_hook) (char *);
1329extern void (*readline_end_hook) (void);
1330extern void (*register_changed_hook) (int regno);
1331extern void (*memory_changed_hook) (CORE_ADDR addr, int len);
1332extern void (*context_hook) (int);
1333extern ptid_t (*target_wait_hook) (ptid_t ptid,
1334                                         struct target_waitstatus * status);
1335
1336extern void (*attach_hook) (void);
1337extern void (*detach_hook) (void);
1338extern void (*call_command_hook) (struct cmd_list_element * c,
1339				  char *cmd, int from_tty);
1340
1341extern void (*set_hook) (struct cmd_list_element * c);
1342
1343extern NORETURN void (*error_hook) (void) ATTR_NORETURN;
1344
1345extern void (*error_begin_hook) (void);
1346
1347extern int (*ui_load_progress_hook) (const char *section, unsigned long num);
1348
1349
1350/* Inhibit window interface if non-zero. */
1351
1352extern int use_windows;
1353
1354/* Symbolic definitions of filename-related things.  */
1355/* FIXME, this doesn't work very well if host and executable
1356   filesystems conventions are different.  */
1357
1358#ifndef DIRNAME_SEPARATOR
1359#define DIRNAME_SEPARATOR ':'
1360#endif
1361
1362#ifndef SLASH_STRING
1363#define SLASH_STRING "/"
1364#endif
1365
1366#ifdef __MSDOS__
1367# define CANT_FORK
1368# define GLOBAL_CURDIR
1369#endif
1370
1371/* Provide default definitions of PIDGET, TIDGET, and MERGEPID.
1372   The name ``TIDGET'' is a historical accident.  Many uses of TIDGET
1373   in the code actually refer to a lightweight process id, i.e,
1374   something that can be considered a process id in its own right for
1375   certain purposes.  */
1376
1377#ifndef PIDGET
1378#define PIDGET(PTID) (ptid_get_pid (PTID))
1379#define TIDGET(PTID) (ptid_get_lwp (PTID))
1380#define MERGEPID(PID, TID) ptid_build (PID, TID, 0)
1381#endif
1382
1383/* Define well known filenos if the system does not define them.  */
1384#ifndef STDIN_FILENO
1385#define STDIN_FILENO   0
1386#endif
1387#ifndef STDOUT_FILENO
1388#define STDOUT_FILENO  1
1389#endif
1390#ifndef STDERR_FILENO
1391#define STDERR_FILENO  2
1392#endif
1393
1394/* If this definition isn't overridden by the header files, assume
1395   that isatty and fileno exist on this system.  */
1396#ifndef ISATTY
1397#define ISATTY(FP)	(isatty (fileno (FP)))
1398#endif
1399
1400#endif /* #ifndef DEFS_H */
1401