Revert: ``Fix C++ overload support, see through references''.
[deliverable/binutils-gdb.git] / gdb / defs.h
1 /* *INDENT-OFF* */ /* ATTR_FORMAT confuses indent, avoid running it for now */
2 /* Basic, host-specific, and target-specific definitions for GDB.
3 Copyright (C) 1986, 1989, 1991-1996, 1998-2000
4 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 2 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, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
22
23 #ifndef DEFS_H
24 #define DEFS_H
25
26 #include "config.h" /* Generated by configure */
27 #include <stdio.h>
28 #include <errno.h> /* System call error return status */
29 #include <limits.h>
30
31 #ifdef HAVE_STDDEF_H
32 #include <stddef.h>
33 #else
34 #include <sys/types.h> /* for size_t */
35 #endif
36
37 #ifdef HAVE_UNISTD_H
38 #include <unistd.h>
39 #endif
40
41 /* Just in case they're not defined in stdio.h. */
42
43 #ifndef SEEK_SET
44 #define SEEK_SET 0
45 #endif
46 #ifndef SEEK_CUR
47 #define SEEK_CUR 1
48 #endif
49
50 /* First include ansidecl.h so we can use the various macro definitions
51 here and in all subsequent file inclusions. */
52
53 #include "ansidecl.h"
54
55 #include <stdarg.h> /* for va_list */
56
57 #include "libiberty.h"
58
59 /* libiberty.h can't declare this one, but evidently we can. */
60 extern char *strsignal (int);
61
62 #include "progress.h"
63
64 #ifdef USE_MMALLOC
65 #include "mmalloc.h"
66 #endif
67
68 /* For BFD64 and bfd_vma. */
69 #include "bfd.h"
70
71 /* An address in the program being debugged. Host byte order. Rather
72 than duplicate all the logic in BFD which figures out what type
73 this is (long, long long, etc.) and whether it needs to be 64
74 bits (the host/target interactions are subtle), we just use
75 bfd_vma. */
76
77 typedef bfd_vma CORE_ADDR;
78
79 /* This is to make sure that LONGEST is at least as big as CORE_ADDR. */
80
81 #ifndef LONGEST
82
83 #ifdef BFD64
84
85 #define LONGEST BFD_HOST_64_BIT
86 #define ULONGEST BFD_HOST_U_64_BIT
87
88 #else /* No BFD64 */
89
90 #ifdef CC_HAS_LONG_LONG
91 #define LONGEST long long
92 #define ULONGEST unsigned long long
93 #else
94 #ifdef BFD_HOST_64_BIT
95 /* BFD_HOST_64_BIT is defined for some hosts that don't have long long
96 (e.g. i386-windows) so try it. */
97 #define LONGEST BFD_HOST_64_BIT
98 #define ULONGEST BFD_HOST_U_64_BIT
99 #else
100 #define LONGEST long
101 #define ULONGEST unsigned long
102 #endif
103 #endif
104
105 #endif /* No BFD64 */
106
107 #endif /* ! LONGEST */
108
109 extern int core_addr_lessthan (CORE_ADDR lhs, CORE_ADDR rhs);
110 extern int core_addr_greaterthan (CORE_ADDR lhs, CORE_ADDR rhs);
111
112
113 #ifndef min
114 #define min(a, b) ((a) < (b) ? (a) : (b))
115 #endif
116 #ifndef max
117 #define max(a, b) ((a) > (b) ? (a) : (b))
118 #endif
119
120 /* Gdb does *lots* of string compares. Use macros to speed them up by
121 avoiding function calls if the first characters are not the same. */
122
123 #define STRCMP(a,b) (*(a) == *(b) ? strcmp ((a), (b)) : (int)*(a) - (int)*(b))
124 #define STREQ(a,b) (*(a) == *(b) ? !strcmp ((a), (b)) : 0)
125 #define STREQN(a,b,c) (*(a) == *(b) ? !strncmp ((a), (b), (c)) : 0)
126
127 /* The character GNU C++ uses to build identifiers that must be unique from
128 the program's identifiers (such as $this and $$vptr). */
129 #define CPLUS_MARKER '$' /* May be overridden to '.' for SysV */
130
131 /* Check if a character is one of the commonly used C++ marker characters. */
132 extern int is_cplus_marker (int);
133
134 /* use tui interface if non-zero */
135 extern int tui_version;
136
137 #if defined(TUI)
138 /* all invocations of TUIDO should have two sets of parens */
139 #define TUIDO(x) tuiDo x
140 #else
141 #define TUIDO(x)
142 #endif
143
144 /* enable xdb commands if set */
145 extern int xdb_commands;
146
147 /* enable dbx commands if set */
148 extern int dbx_commands;
149
150 extern int quit_flag;
151 extern int immediate_quit;
152 extern int sevenbit_strings;
153
154 extern void quit (void);
155
156 #ifdef QUIT
157 /* do twice to force compiler warning */
158 #define QUIT_FIXME "FIXME"
159 #define QUIT_FIXME "ignoring redefinition of QUIT"
160 #else
161 #define QUIT { \
162 if (quit_flag) quit (); \
163 if (interactive_hook) interactive_hook (); \
164 PROGRESS (1); \
165 }
166 #endif
167
168 /* Languages represented in the symbol table and elsewhere.
169 This should probably be in language.h, but since enum's can't
170 be forward declared to satisfy opaque references before their
171 actual definition, needs to be here. */
172
173 enum language
174 {
175 language_unknown, /* Language not known */
176 language_auto, /* Placeholder for automatic setting */
177 language_c, /* C */
178 language_cplus, /* C++ */
179 language_java, /* Java */
180 language_chill, /* Chill */
181 language_fortran, /* Fortran */
182 language_m2, /* Modula-2 */
183 language_asm, /* Assembly language */
184 language_scm /* Scheme / Guile */
185 };
186
187 enum precision_type
188 {
189 single_precision,
190 double_precision,
191 unspecified_precision
192 };
193
194 /* the cleanup list records things that have to be undone
195 if an error happens (descriptors to be closed, memory to be freed, etc.)
196 Each link in the chain records a function to call and an
197 argument to give it.
198
199 Use make_cleanup to add an element to the cleanup chain.
200 Use do_cleanups to do all cleanup actions back to a given
201 point in the chain. Use discard_cleanups to remove cleanups
202 from the chain back to a given point, not doing them. */
203
204 struct cleanup
205 {
206 struct cleanup *next;
207 void (*function) (PTR);
208 PTR arg;
209 };
210
211
212 /* The ability to declare that a function never returns is useful, but
213 not really required to compile GDB successfully, so the NORETURN and
214 ATTR_NORETURN macros normally expand into nothing. */
215
216 /* If compiling with older versions of GCC, a function may be declared
217 "volatile" to indicate that it does not return. */
218
219 #ifndef NORETURN
220 #if defined(__GNUC__) \
221 && (__GNUC__ == 1 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
222 #define NORETURN volatile
223 #else
224 #define NORETURN /* nothing */
225 #endif
226 #endif
227
228 /* GCC 2.5 and later versions define a function attribute "noreturn",
229 which is the preferred way to declare that a function never returns.
230 However GCC 2.7 appears to be the first version in which this fully
231 works everywhere we use it. */
232
233 #ifndef ATTR_NORETURN
234 #if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 7
235 #define ATTR_NORETURN __attribute__ ((noreturn))
236 #else
237 #define ATTR_NORETURN /* nothing */
238 #endif
239 #endif
240
241 #ifndef ATTR_FORMAT
242 #if defined(__GNUC__) && __GNUC__ >= 2 && __GNUC_MINOR__ >= 4
243 #define ATTR_FORMAT(type, x, y) __attribute__ ((format(type, x, y)))
244 #else
245 #define ATTR_FORMAT(type, x, y) /* nothing */
246 #endif
247 #endif
248
249 /* Needed for various prototypes */
250
251 struct symtab;
252 struct breakpoint;
253
254 /* From blockframe.c */
255
256 extern int inside_entry_func (CORE_ADDR);
257
258 extern int inside_entry_file (CORE_ADDR addr);
259
260 extern int inside_main_func (CORE_ADDR pc);
261
262 /* From ch-lang.c, for the moment. (FIXME) */
263
264 extern char *chill_demangle (const char *);
265
266 /* From utils.c */
267
268 extern void initialize_utils (void);
269
270 extern void notice_quit (void);
271
272 extern int strcmp_iw (const char *, const char *);
273
274 extern int subset_compare (char *, char *);
275
276 extern char *safe_strerror (int);
277
278 extern char *safe_strsignal (int);
279
280 extern void init_malloc (void *);
281
282 extern void request_quit (int);
283
284 extern void do_cleanups (struct cleanup *);
285 extern void do_final_cleanups (struct cleanup *);
286 extern void do_my_cleanups (struct cleanup **, struct cleanup *);
287 extern void do_run_cleanups (struct cleanup *);
288 extern void do_exec_cleanups (struct cleanup *);
289 extern void do_exec_error_cleanups (struct cleanup *);
290
291 extern void discard_cleanups (struct cleanup *);
292 extern void discard_final_cleanups (struct cleanup *);
293 extern void discard_exec_error_cleanups (struct cleanup *);
294 extern void discard_my_cleanups (struct cleanup **, struct cleanup *);
295
296 /* DEPRECATED: cagney/2000-03-04: Do not use this typedef to cast
297 function pointers so that they match the argument to the various
298 cleanup functions. Post GDB 5.0, this typedef will be
299 deleted. [Editors note: cagney was the person that added most of
300 those type casts] */
301 typedef void (*make_cleanup_func) (void *);
302
303 /* NOTE: cagney/2000-03-04: This typedef is strictly for the
304 make_cleanup function declarations below. Do not use this typedef
305 as a cast when passing functions into the make_cleanup() code.
306 Instead either use a bounce function or add a wrapper function.
307 Calling a f(char*) function with f(void*) is non-portable. */
308 typedef void (make_cleanup_ftype) (void *);
309
310 extern struct cleanup *make_cleanup (make_cleanup_ftype *, void *);
311
312 extern struct cleanup *make_cleanup_freeargv (char **);
313
314 struct ui_file;
315 extern struct cleanup *make_cleanup_ui_file_delete (struct ui_file *);
316
317 extern struct cleanup *make_final_cleanup (make_cleanup_ftype *, void *);
318
319 extern struct cleanup *make_my_cleanup (struct cleanup **,
320 make_cleanup_ftype *, void *);
321
322 extern struct cleanup *make_run_cleanup (make_cleanup_ftype *, void *);
323
324 extern struct cleanup *make_exec_cleanup (make_cleanup_ftype *, void *);
325 extern struct cleanup *make_exec_error_cleanup (make_cleanup_ftype *, void *);
326
327 extern struct cleanup *save_cleanups (void);
328 extern struct cleanup *save_final_cleanups (void);
329 extern struct cleanup *save_my_cleanups (struct cleanup **);
330
331 extern void restore_cleanups (struct cleanup *);
332 extern void restore_final_cleanups (struct cleanup *);
333 extern void restore_my_cleanups (struct cleanup **, struct cleanup *);
334
335 extern void free_current_contents (char **);
336
337 extern void null_cleanup (void *);
338
339 extern int myread (int, char *, int);
340
341 extern int query (char *, ...) ATTR_FORMAT (printf, 1, 2);
342
343 #if !defined (USE_MMALLOC)
344 /* NOTE: cagney/2000-03-04: The mmalloc functions need to use PTR
345 rather than void* so that they are consistent with
346 ../mmalloc/mmalloc.h. */
347 extern PTR mcalloc (PTR, size_t, size_t);
348 extern PTR mmalloc (PTR, size_t);
349 extern PTR mrealloc (PTR, PTR, size_t);
350 extern void mfree (PTR, PTR);
351 #endif
352
353 extern void init_page_info (void);
354
355 /* From demangle.c */
356
357 extern void set_demangling_style (char *);
358
359 /* From tm.h */
360
361 struct type;
362 typedef int (use_struct_convention_fn) (int gcc_p, struct type * value_type);
363 extern use_struct_convention_fn generic_use_struct_convention;
364
365 typedef unsigned char *(breakpoint_from_pc_fn) (CORE_ADDR * pcptr, int *lenptr);
366 \f
367 /* Annotation stuff. */
368
369 extern int annotation_level; /* in stack.c */
370 \f
371 extern void begin_line (void);
372
373 extern void wrap_here (char *);
374
375 extern void reinitialize_more_filter (void);
376
377 /* Normal results */
378 extern struct ui_file *gdb_stdout;
379 /* Serious error notifications */
380 extern struct ui_file *gdb_stderr;
381 /* Log/debug/trace messages that should bypass normal stdout/stderr
382 filtering. For momement, always call this stream using
383 *_unfiltered. In the very near future that restriction shall be
384 removed - either call shall be unfiltered. (cagney 1999-06-13). */
385 extern struct ui_file *gdb_stdlog;
386 /* Target output that should bypass normal stdout/stderr filtering.
387 For momement, always call this stream using *_unfiltered. In the
388 very near future that restriction shall be removed - either call
389 shall be unfiltered. (cagney 1999-07-02). */
390 extern struct ui_file *gdb_stdtarg;
391
392 #if defined(TUI)
393 #include "tui.h"
394 #include "tuiCommand.h"
395 #include "tuiData.h"
396 #include "tuiIO.h"
397 #include "tuiLayout.h"
398 #include "tuiWin.h"
399 #endif
400
401 #include "ui-file.h"
402
403 /* More generic printf like operations */
404
405 extern void fputs_filtered (const char *, struct ui_file *);
406
407 extern void fputs_unfiltered (const char *, struct ui_file *);
408
409 extern int fputc_filtered (int c, struct ui_file *);
410
411 extern int fputc_unfiltered (int c, struct ui_file *);
412
413 extern int putchar_unfiltered (int c);
414
415 extern void puts_filtered (const char *);
416
417 extern void puts_unfiltered (const char *);
418
419 extern void puts_debug (char *prefix, char *string, char *suffix);
420
421 extern void vprintf_filtered (const char *, va_list) ATTR_FORMAT (printf, 1, 0);
422
423 extern void vfprintf_filtered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0);
424
425 extern void fprintf_filtered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3);
426
427 extern void fprintfi_filtered (int, struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 3, 4);
428
429 extern void printf_filtered (const char *, ...) ATTR_FORMAT (printf, 1, 2);
430
431 extern void printfi_filtered (int, const char *, ...) ATTR_FORMAT (printf, 2, 3);
432
433 extern void vprintf_unfiltered (const char *, va_list) ATTR_FORMAT (printf, 1, 0);
434
435 extern void vfprintf_unfiltered (struct ui_file *, const char *, va_list) ATTR_FORMAT (printf, 2, 0);
436
437 extern void fprintf_unfiltered (struct ui_file *, const char *, ...) ATTR_FORMAT (printf, 2, 3);
438
439 extern void printf_unfiltered (const char *, ...) ATTR_FORMAT (printf, 1, 2);
440
441 extern void print_spaces (int, struct ui_file *);
442
443 extern void print_spaces_filtered (int, struct ui_file *);
444
445 extern char *n_spaces (int);
446
447 extern void fputstr_filtered (const char *str, int quotr, struct ui_file * stream);
448
449 extern void fputstr_unfiltered (const char *str, int quotr, struct ui_file * stream);
450
451 extern void fputstrn_unfiltered (const char *str, int n, int quotr, struct ui_file * stream);
452
453 /* Display the host ADDR on STREAM formatted as ``0x%x''. */
454 extern void gdb_print_host_address (void *addr, struct ui_file *stream);
455
456 /* Convert a CORE_ADDR into a HEX string. paddr() is like %08lx.
457 paddr_nz() is like %lx. paddr_u() is like %lu. paddr_width() is
458 for ``%*''. */
459 extern int strlen_paddr (void);
460 extern char *paddr (CORE_ADDR addr);
461 extern char *paddr_nz (CORE_ADDR addr);
462 extern char *paddr_u (CORE_ADDR addr);
463 extern char *paddr_d (LONGEST addr);
464
465 typedef bfd_vma t_reg;
466 extern char *preg (t_reg reg);
467 extern char *preg_nz (t_reg reg);
468
469 extern void fprintf_symbol_filtered (struct ui_file *, char *,
470 enum language, int);
471
472 extern NORETURN void perror_with_name (char *) ATTR_NORETURN;
473
474 extern void print_sys_errmsg (char *, int);
475
476 /* From regex.c or libc. BSD 4.4 declares this with the argument type as
477 "const char *" in unistd.h, so we can't declare the argument
478 as "char *". */
479
480 extern char *re_comp (const char *);
481
482 /* From symfile.c */
483
484 extern void symbol_file_command (char *, int);
485
486 /* Remote targets may wish to use this as their load function. */
487 extern void generic_load (char *name, int from_tty);
488
489 /* Summarise a download */
490 extern void print_transfer_performance (struct ui_file *stream,
491 unsigned long data_count,
492 unsigned long write_count,
493 unsigned long time_count);
494
495 /* From top.c */
496
497 typedef void initialize_file_ftype (void);
498
499 extern char *skip_quoted (char *);
500
501 extern char *gdb_readline (char *);
502
503 extern char *command_line_input (char *, int, char *);
504
505 extern void print_prompt (void);
506
507 extern int input_from_terminal_p (void);
508
509 extern int info_verbose;
510
511 /* From printcmd.c */
512
513 extern void set_next_address (CORE_ADDR);
514
515 extern void print_address_symbolic (CORE_ADDR, struct ui_file *, int,
516 char *);
517
518 extern int build_address_symbolic (CORE_ADDR addr,
519 int do_demangle,
520 char **name,
521 int *offset,
522 char **filename,
523 int *line,
524 int *unmapped);
525
526 extern void print_address_numeric (CORE_ADDR, int, struct ui_file *);
527
528 extern void print_address (CORE_ADDR, struct ui_file *);
529
530 /* From source.c */
531
532 extern int openp (char *, int, char *, int, int, char **);
533
534 extern int source_full_path_of (char *, char **);
535
536 extern void mod_path (char *, char **);
537
538 extern void directory_command (char *, int);
539
540 extern void init_source_path (void);
541
542 extern char *symtab_to_filename (struct symtab *);
543
544 /* From exec.c */
545
546 extern void exec_set_section_offsets (bfd_signed_vma text_off,
547 bfd_signed_vma data_off,
548 bfd_signed_vma bss_off);
549
550 /* From findvar.c */
551
552 extern int read_relative_register_raw_bytes (int, char *);
553
554 /* Possible lvalue types. Like enum language, this should be in
555 value.h, but needs to be here for the same reason. */
556
557 enum lval_type
558 {
559 /* Not an lval. */
560 not_lval,
561 /* In memory. Could be a saved register. */
562 lval_memory,
563 /* In a register. */
564 lval_register,
565 /* In a gdb internal variable. */
566 lval_internalvar,
567 /* Part of a gdb internal variable (structure field). */
568 lval_internalvar_component,
569 /* In a register series in a frame not the current one, which may have been
570 partially saved or saved in different places (otherwise would be
571 lval_register or lval_memory). */
572 lval_reg_frame_relative
573 };
574
575 struct frame_info;
576
577 void default_get_saved_register (char *raw_buffer, int *optimized,
578 CORE_ADDR * addrp,
579 struct frame_info *frame, int regnum,
580 enum lval_type *lval);
581
582 /* From readline (but not in any readline .h files). */
583
584 extern char *tilde_expand (char *);
585
586 /* Control types for commands */
587
588 enum misc_command_type
589 {
590 ok_command,
591 end_command,
592 else_command,
593 nop_command
594 };
595
596 enum command_control_type
597 {
598 simple_control,
599 break_control,
600 continue_control,
601 while_control,
602 if_control,
603 invalid_control
604 };
605
606 /* Structure for saved commands lines
607 (for breakpoints, defined commands, etc). */
608
609 struct command_line
610 {
611 struct command_line *next;
612 char *line;
613 enum command_control_type control_type;
614 int body_count;
615 struct command_line **body_list;
616 };
617
618 extern struct command_line *read_command_lines (char *, int);
619
620 extern void free_command_lines (struct command_line **);
621
622 /* To continue the execution commands when running gdb asynchronously.
623 A continuation structure contains a pointer to a function to be called
624 to finish the command, once the target has stopped. Such mechanism is
625 used bt the finish and until commands, and in the remote protocol
626 when opening an extended-remote connection. */
627
628 struct continuation_arg
629 {
630 struct continuation_arg *next;
631 void *data;
632 };
633
634 struct continuation
635 {
636 void (*continuation_hook) (struct continuation_arg *);
637 struct continuation_arg *arg_list;
638 struct continuation *next;
639 };
640 struct continuation continuation;
641
642 /* In infrun.c. */
643 extern struct continuation *cmd_continuation;
644 /* Used only by the step_1 function. */
645 extern struct continuation *intermediate_continuation;
646
647 /* From utils.c */
648 extern void add_continuation (void (*)(struct continuation_arg *),
649 struct continuation_arg *);
650 extern void do_all_continuations (void);
651 extern void discard_all_continuations (void);
652
653 extern void add_intermediate_continuation (void (*)(struct continuation_arg *),
654 struct continuation_arg *);
655 extern void do_all_intermediate_continuations (void);
656 extern void discard_all_intermediate_continuations (void);
657
658 /* String containing the current directory (what getwd would return). */
659
660 extern char *current_directory;
661
662 /* Default radixes for input and output. Only some values supported. */
663 extern unsigned input_radix;
664 extern unsigned output_radix;
665
666 /* Possibilities for prettyprint parameters to routines which print
667 things. Like enum language, this should be in value.h, but needs
668 to be here for the same reason. FIXME: If we can eliminate this
669 as an arg to LA_VAL_PRINT, then we can probably move it back to
670 value.h. */
671
672 enum val_prettyprint
673 {
674 Val_no_prettyprint = 0,
675 Val_prettyprint,
676 /* Use the default setting which the user has specified. */
677 Val_pretty_default
678 };
679 \f
680
681 /* Host machine definition. This will be a symlink to one of the
682 xm-*.h files, built by the `configure' script. */
683
684 #include "xm.h"
685
686 /* Native machine support. This will be a symlink to one of the
687 nm-*.h files, built by the `configure' script. */
688
689 #include "nm.h"
690
691 /* Target machine definition. This will be a symlink to one of the
692 tm-*.h files, built by the `configure' script. */
693
694 #include "tm.h"
695
696 /* If the xm.h file did not define the mode string used to open the
697 files, assume that binary files are opened the same way as text
698 files */
699 #ifndef FOPEN_RB
700 #include "fopen-same.h"
701 #endif
702
703 /* Microsoft C can't deal with const pointers */
704
705 #ifdef _MSC_VER
706 #define CONST_PTR
707 #else
708 #define CONST_PTR const
709 #endif
710
711 /*
712 * Allow things in gdb to be declared "volatile". If compiling ANSI, it
713 * just works. If compiling with gcc but non-ansi, redefine to __volatile__.
714 * If non-ansi, non-gcc, then eliminate "volatile" entirely, making those
715 * objects be read-write rather than read-only.
716 */
717
718 #ifndef volatile
719 #ifndef __STDC__
720 #ifdef __GNUC__
721 #define volatile __volatile__
722 #else
723 #define volatile /* nothing */
724 #endif /* GNUC */
725 #endif /* STDC */
726 #endif /* volatile */
727
728 /* Defaults for system-wide constants (if not defined by xm.h, we fake it).
729 FIXME: Assumes 2's complement arithmetic */
730
731 #if !defined (UINT_MAX)
732 #define UINT_MAX ((unsigned int)(~0)) /* 0xFFFFFFFF for 32-bits */
733 #endif
734
735 #if !defined (INT_MAX)
736 #define INT_MAX ((int)(UINT_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
737 #endif
738
739 #if !defined (INT_MIN)
740 #define INT_MIN ((int)((int) ~0 ^ INT_MAX)) /* 0x80000000 for 32-bits */
741 #endif
742
743 #if !defined (ULONG_MAX)
744 #define ULONG_MAX ((unsigned long)(~0L)) /* 0xFFFFFFFF for 32-bits */
745 #endif
746
747 #if !defined (LONG_MAX)
748 #define LONG_MAX ((long)(ULONG_MAX >> 1)) /* 0x7FFFFFFF for 32-bits */
749 #endif
750
751 #if !defined (ULONGEST_MAX)
752 #define ULONGEST_MAX (~(ULONGEST)0) /* 0xFFFFFFFFFFFFFFFF for 32-bits */
753 #endif
754
755 #if !defined (LONGEST_MAX) /* 0x7FFFFFFFFFFFFFFF for 32-bits */
756 #define LONGEST_MAX ((LONGEST)(ULONGEST_MAX >> 1))
757 #endif
758
759 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
760 arguments to a function, number in a value history, register number, etc.)
761 where the value must not be larger than can fit in an int. */
762
763 extern int longest_to_int (LONGEST);
764
765 /* Assorted functions we can declare, now that const and volatile are
766 defined. */
767
768 extern char *savestring (const char *, int);
769
770 extern char *msavestring (void *, const char *, int);
771
772 extern char *strsave (const char *);
773
774 extern char *mstrsave (void *, const char *);
775
776 /* FIXME; was long, but this causes compile errors in msvc if already
777 defined */
778 #ifdef _MSC_VER
779 extern PTR xmmalloc (PTR, size_t);
780 extern PTR xmrealloc (PTR, PTR, size_t);
781 #else
782 extern PTR xmmalloc (PTR, long);
783 extern PTR xmrealloc (PTR, PTR, long);
784 #endif
785
786 extern int parse_escape (char **);
787
788 /* Message to be printed before the error message, when an error occurs. */
789
790 extern char *error_pre_print;
791
792 /* Message to be printed before the error message, when an error occurs. */
793
794 extern char *quit_pre_print;
795
796 /* Message to be printed before the warning message, when a warning occurs. */
797
798 extern char *warning_pre_print;
799
800 extern NORETURN void verror (const char *fmt, va_list ap) ATTR_NORETURN;
801
802 extern NORETURN void error (const char *fmt, ...) ATTR_NORETURN;
803
804 /* DEPRECATED: Use error(), verror() or error_stream(). */
805 extern NORETURN void error_begin (void);
806
807 extern NORETURN void error_stream (struct ui_file *) ATTR_NORETURN;
808
809 /* Returns a freshly allocate buffer containing the last error
810 message. */
811 extern char *error_last_message (void);
812
813 extern NORETURN void internal_verror (const char *, va_list ap) ATTR_NORETURN;
814
815 extern NORETURN void internal_error (char *, ...) ATTR_NORETURN;
816
817 extern NORETURN void nomem (long) ATTR_NORETURN;
818
819 /* Reasons for calling return_to_top_level. Note: enum value 0 is
820 reserved for internal use as the return value from an initial
821 setjmp(). */
822
823 enum return_reason
824 {
825 /* User interrupt. */
826 RETURN_QUIT = 1,
827 /* Any other error. */
828 RETURN_ERROR
829 };
830
831 #define ALL_CLEANUPS ((struct cleanup *)0)
832
833 #define RETURN_MASK(reason) (1 << (int)(reason))
834 #define RETURN_MASK_QUIT RETURN_MASK (RETURN_QUIT)
835 #define RETURN_MASK_ERROR RETURN_MASK (RETURN_ERROR)
836 #define RETURN_MASK_ALL (RETURN_MASK_QUIT | RETURN_MASK_ERROR)
837 typedef int return_mask;
838
839 extern NORETURN void return_to_top_level (enum return_reason) ATTR_NORETURN;
840
841 /* If CATCH_ERRORS_FTYPE throws an error, catch_errors() returns zero
842 otherwize the result from CATCH_ERRORS_FTYPE is returned. It is
843 probably useful for CATCH_ERRORS_FTYPE to always return a non-zero
844 value. It's unfortunate that, catch_errors() does not return an
845 indication of the exact exception that it caught - quit_flag might
846 help. */
847
848 typedef int (catch_errors_ftype) (PTR);
849 extern int catch_errors (catch_errors_ftype *, PTR, char *, return_mask);
850
851 /* Template to catch_errors() that wraps calls to command
852 functions. */
853
854 typedef void (catch_command_errors_ftype) (char *, int);
855 extern int catch_command_errors (catch_command_errors_ftype *func, char *command, int from_tty, return_mask);
856
857 extern void warning_begin (void);
858
859 extern void warning (const char *, ...) ATTR_FORMAT (printf, 1, 2);
860
861 /* Global functions from other, non-gdb GNU thingies.
862 Libiberty thingies are no longer declared here. We include libiberty.h
863 above, instead. */
864
865 #ifndef GETENV_PROVIDED
866 extern char *getenv (const char *);
867 #endif
868
869 /* From other system libraries */
870
871 #ifdef HAVE_STDDEF_H
872 #include <stddef.h>
873 #endif
874
875 #ifdef HAVE_STDLIB_H
876 #if defined(_MSC_VER) && !defined(__cplusplus)
877 /* msvc defines these in stdlib.h for c code */
878 #undef min
879 #undef max
880 #endif
881 #include <stdlib.h>
882 #endif
883 #ifndef min
884 #define min(a, b) ((a) < (b) ? (a) : (b))
885 #endif
886 #ifndef max
887 #define max(a, b) ((a) > (b) ? (a) : (b))
888 #endif
889
890
891 /* We take the address of fclose later, but some stdio's forget
892 to declare this. We can't always declare it since there's
893 no way to declare the parameters without upsetting some compiler
894 somewhere. */
895
896 #ifndef FCLOSE_PROVIDED
897 extern int fclose (FILE *);
898 #endif
899
900 #ifndef atof
901 extern double atof (const char *); /* X3.159-1989 4.10.1.1 */
902 #endif
903
904 #ifndef MALLOC_INCOMPATIBLE
905
906 #ifdef NEED_DECLARATION_MALLOC
907 extern PTR malloc ();
908 #endif
909
910 #ifdef NEED_DECLARATION_REALLOC
911 extern PTR realloc ();
912 #endif
913
914 #ifdef NEED_DECLARATION_FREE
915 extern void free ();
916 #endif
917
918 #endif /* MALLOC_INCOMPATIBLE */
919
920 /* Various possibilities for alloca. */
921 #ifndef alloca
922 #ifdef __GNUC__
923 #define alloca __builtin_alloca
924 #else /* Not GNU C */
925 #ifdef HAVE_ALLOCA_H
926 #include <alloca.h>
927 #else
928 #ifdef _AIX
929 #pragma alloca
930 #else
931
932 /* We need to be careful not to declare this in a way which conflicts with
933 bison. Bison never declares it as char *, but under various circumstances
934 (like __hpux) we need to use void *. */
935 #if defined (__STDC__) || defined (__hpux)
936 extern void *alloca ();
937 #else /* Don't use void *. */
938 extern char *alloca ();
939 #endif /* Don't use void *. */
940 #endif /* Not _AIX */
941 #endif /* Not HAVE_ALLOCA_H */
942 #endif /* Not GNU C */
943 #endif /* alloca not defined */
944
945 /* HOST_BYTE_ORDER must be defined to one of these. */
946
947 #ifdef HAVE_ENDIAN_H
948 #include <endian.h>
949 #endif
950
951 #if !defined (BIG_ENDIAN)
952 #define BIG_ENDIAN 4321
953 #endif
954
955 #if !defined (LITTLE_ENDIAN)
956 #define LITTLE_ENDIAN 1234
957 #endif
958
959 /* Dynamic target-system-dependent parameters for GDB. */
960 #include "gdbarch.h"
961
962 /* Static target-system-dependent parameters for GDB. */
963
964 /* Number of bits in a char or unsigned char for the target machine.
965 Just like CHAR_BIT in <limits.h> but describes the target machine. */
966 #if !defined (TARGET_CHAR_BIT)
967 #define TARGET_CHAR_BIT 8
968 #endif
969
970 /* Number of bits in a short or unsigned short for the target machine. */
971 #if !defined (TARGET_SHORT_BIT)
972 #define TARGET_SHORT_BIT (2 * TARGET_CHAR_BIT)
973 #endif
974
975 /* Number of bits in an int or unsigned int for the target machine. */
976 #if !defined (TARGET_INT_BIT)
977 #define TARGET_INT_BIT (4 * TARGET_CHAR_BIT)
978 #endif
979
980 /* Number of bits in a long or unsigned long for the target machine. */
981 #if !defined (TARGET_LONG_BIT)
982 #define TARGET_LONG_BIT (4 * TARGET_CHAR_BIT)
983 #endif
984
985 /* Number of bits in a long long or unsigned long long for the target machine. */
986 #if !defined (TARGET_LONG_LONG_BIT)
987 #define TARGET_LONG_LONG_BIT (2 * TARGET_LONG_BIT)
988 #endif
989
990 /* Number of bits in a float for the target machine. */
991 #if !defined (TARGET_FLOAT_BIT)
992 #define TARGET_FLOAT_BIT (4 * TARGET_CHAR_BIT)
993 #endif
994
995 /* Number of bits in a double for the target machine. */
996 #if !defined (TARGET_DOUBLE_BIT)
997 #define TARGET_DOUBLE_BIT (8 * TARGET_CHAR_BIT)
998 #endif
999
1000 /* Number of bits in a long double for the target machine. */
1001 #if !defined (TARGET_LONG_DOUBLE_BIT)
1002 #define TARGET_LONG_DOUBLE_BIT (2 * TARGET_DOUBLE_BIT)
1003 #endif
1004
1005 /* Number of bits in a pointer for the target machine */
1006 #if !defined (TARGET_PTR_BIT)
1007 #define TARGET_PTR_BIT TARGET_INT_BIT
1008 #endif
1009
1010 /* Number of bits in a BFD_VMA for the target object file format. */
1011 #if !defined (TARGET_BFD_VMA_BIT)
1012 #define TARGET_BFD_VMA_BIT TARGET_PTR_BIT
1013 #endif
1014
1015 /* If we picked up a copy of CHAR_BIT from a configuration file
1016 (which may get it by including <limits.h>) then use it to set
1017 the number of bits in a host char. If not, use the same size
1018 as the target. */
1019
1020 #if defined (CHAR_BIT)
1021 #define HOST_CHAR_BIT CHAR_BIT
1022 #else
1023 #define HOST_CHAR_BIT TARGET_CHAR_BIT
1024 #endif
1025
1026 /* The bit byte-order has to do just with numbering of bits in
1027 debugging symbols and such. Conceptually, it's quite separate
1028 from byte/word byte order. */
1029
1030 #if !defined (BITS_BIG_ENDIAN)
1031 #define BITS_BIG_ENDIAN (TARGET_BYTE_ORDER == BIG_ENDIAN)
1032 #endif
1033
1034 /* In findvar.c. */
1035
1036 extern LONGEST extract_signed_integer (void *, int);
1037
1038 extern ULONGEST extract_unsigned_integer (void *, int);
1039
1040 extern int extract_long_unsigned_integer (void *, int, LONGEST *);
1041
1042 extern CORE_ADDR extract_address (void *, int);
1043
1044 extern void store_signed_integer (void *, int, LONGEST);
1045
1046 extern void store_unsigned_integer (void *, int, ULONGEST);
1047
1048 extern void store_address (void *, int, LONGEST);
1049
1050 /* Setup definitions for host and target floating point formats. We need to
1051 consider the format for `float', `double', and `long double' for both target
1052 and host. We need to do this so that we know what kind of conversions need
1053 to be done when converting target numbers to and from the hosts DOUBLEST
1054 data type. */
1055
1056 /* This is used to indicate that we don't know the format of the floating point
1057 number. Typically, this is useful for native ports, where the actual format
1058 is irrelevant, since no conversions will be taking place. */
1059
1060 extern const struct floatformat floatformat_unknown;
1061
1062 #if HOST_BYTE_ORDER == BIG_ENDIAN
1063 #ifndef HOST_FLOAT_FORMAT
1064 #define HOST_FLOAT_FORMAT &floatformat_ieee_single_big
1065 #endif
1066 #ifndef HOST_DOUBLE_FORMAT
1067 #define HOST_DOUBLE_FORMAT &floatformat_ieee_double_big
1068 #endif
1069 #else /* LITTLE_ENDIAN */
1070 #ifndef HOST_FLOAT_FORMAT
1071 #define HOST_FLOAT_FORMAT &floatformat_ieee_single_little
1072 #endif
1073 #ifndef HOST_DOUBLE_FORMAT
1074 #define HOST_DOUBLE_FORMAT &floatformat_ieee_double_little
1075 #endif
1076 #endif
1077
1078 #ifndef HOST_LONG_DOUBLE_FORMAT
1079 #define HOST_LONG_DOUBLE_FORMAT &floatformat_unknown
1080 #endif
1081
1082 #ifndef TARGET_FLOAT_FORMAT
1083 #define TARGET_FLOAT_FORMAT (TARGET_BYTE_ORDER == BIG_ENDIAN \
1084 ? &floatformat_ieee_single_big \
1085 : &floatformat_ieee_single_little)
1086 #endif
1087 #ifndef TARGET_DOUBLE_FORMAT
1088 #define TARGET_DOUBLE_FORMAT (TARGET_BYTE_ORDER == BIG_ENDIAN \
1089 ? &floatformat_ieee_double_big \
1090 : &floatformat_ieee_double_little)
1091 #endif
1092
1093 #ifndef TARGET_LONG_DOUBLE_FORMAT
1094 #define TARGET_LONG_DOUBLE_FORMAT &floatformat_unknown
1095 #endif
1096
1097 /* Use `long double' if the host compiler supports it. (Note that this is not
1098 necessarily any longer than `double'. On SunOS/gcc, it's the same as
1099 double.) This is necessary because GDB internally converts all floating
1100 point values to the widest type supported by the host.
1101
1102 There are problems however, when the target `long double' is longer than the
1103 host's `long double'. In general, we'll probably reduce the precision of
1104 any such values and print a warning. */
1105
1106 #ifdef HAVE_LONG_DOUBLE
1107 typedef long double DOUBLEST;
1108 #else
1109 typedef double DOUBLEST;
1110 #endif
1111
1112 extern void floatformat_to_doublest (const struct floatformat *,
1113 char *, DOUBLEST *);
1114 extern void floatformat_from_doublest (const struct floatformat *,
1115 DOUBLEST *, char *);
1116 extern DOUBLEST extract_floating (void *, int);
1117
1118 extern void store_floating (void *, int, DOUBLEST);
1119 \f
1120 /* On some machines there are bits in addresses which are not really
1121 part of the address, but are used by the kernel, the hardware, etc.
1122 for special purposes. ADDR_BITS_REMOVE takes out any such bits
1123 so we get a "real" address such as one would find in a symbol
1124 table. This is used only for addresses of instructions, and even then
1125 I'm not sure it's used in all contexts. It exists to deal with there
1126 being a few stray bits in the PC which would mislead us, not as some sort
1127 of generic thing to handle alignment or segmentation (it's possible it
1128 should be in TARGET_READ_PC instead). */
1129 #if !defined (ADDR_BITS_REMOVE)
1130 #define ADDR_BITS_REMOVE(addr) (addr)
1131 #endif /* No ADDR_BITS_REMOVE. */
1132
1133 /* From valops.c */
1134
1135 extern CORE_ADDR push_bytes (CORE_ADDR, char *, int);
1136
1137 extern CORE_ADDR push_word (CORE_ADDR, ULONGEST);
1138
1139 extern int watchdog;
1140
1141 /* Hooks for alternate command interfaces. */
1142
1143 #ifdef UI_OUT
1144 /* The name of the interpreter if specified on the command line. */
1145 extern char *interpreter_p;
1146 #endif
1147
1148 /* If a given interpreter matches INTERPRETER_P then it should update
1149 command_loop_hook and init_ui_hook with the per-interpreter
1150 implementation. */
1151 /* FIXME: command_loop_hook and init_ui_hook should be moved here. */
1152
1153 struct target_waitstatus;
1154 struct cmd_list_element;
1155
1156 /* Should the asynchronous variant of the interpreter (using the
1157 event-loop) be enabled? */
1158 extern int event_loop_p;
1159
1160 extern void (*init_ui_hook) (char *argv0);
1161 extern void (*command_loop_hook) (void);
1162 extern void (*show_load_progress) (const char *section,
1163 unsigned long section_sent,
1164 unsigned long section_size,
1165 unsigned long total_sent,
1166 unsigned long total_size);
1167 extern void (*print_frame_info_listing_hook) (struct symtab * s,
1168 int line, int stopline,
1169 int noerror);
1170 extern struct frame_info *parse_frame_specification (char *frame_exp);
1171 extern int (*query_hook) (const char *, va_list);
1172 extern void (*warning_hook) (const char *, va_list);
1173 extern void (*flush_hook) (struct ui_file * stream);
1174 extern void (*create_breakpoint_hook) (struct breakpoint * b);
1175 extern void (*delete_breakpoint_hook) (struct breakpoint * bpt);
1176 extern void (*modify_breakpoint_hook) (struct breakpoint * bpt);
1177 extern void (*interactive_hook) (void);
1178 extern void (*registers_changed_hook) (void);
1179 extern void (*readline_begin_hook) (char *,...);
1180 extern char *(*readline_hook) (char *);
1181 extern void (*readline_end_hook) (void);
1182 extern void (*register_changed_hook) (int regno);
1183 extern void (*memory_changed_hook) (CORE_ADDR addr, int len);
1184 extern void (*context_hook) (int);
1185 extern int (*target_wait_hook) (int pid, struct target_waitstatus * status);
1186
1187 extern void (*attach_hook) (void);
1188 extern void (*detach_hook) (void);
1189 extern void (*call_command_hook) (struct cmd_list_element * c,
1190 char *cmd, int from_tty);
1191
1192 extern void (*set_hook) (struct cmd_list_element * c);
1193
1194 extern NORETURN void (*error_hook) (void) ATTR_NORETURN;
1195
1196 extern void (*error_begin_hook) (void);
1197
1198 extern int (*ui_load_progress_hook) (const char *section, unsigned long num);
1199
1200
1201 /* Inhibit window interface if non-zero. */
1202
1203 extern int use_windows;
1204
1205 /* Symbolic definitions of filename-related things. */
1206 /* FIXME, this doesn't work very well if host and executable
1207 filesystems conventions are different. */
1208
1209 #ifndef DIRNAME_SEPARATOR
1210 #define DIRNAME_SEPARATOR ':'
1211 #endif
1212
1213 #ifndef SLASH_P
1214 #if defined(__GO32__)||defined(_WIN32)
1215 #define SLASH_P(X) ((X)=='\\')
1216 #else
1217 #define SLASH_P(X) ((X)=='/')
1218 #endif
1219 #endif
1220
1221 #ifndef SLASH_CHAR
1222 #if defined(__GO32__)||defined(_WIN32)
1223 #define SLASH_CHAR '\\'
1224 #else
1225 #define SLASH_CHAR '/'
1226 #endif
1227 #endif
1228
1229 #ifndef SLASH_STRING
1230 #if defined(__GO32__)||defined(_WIN32)
1231 #define SLASH_STRING "\\"
1232 #else
1233 #define SLASH_STRING "/"
1234 #endif
1235 #endif
1236
1237 #ifndef ROOTED_P
1238 #define ROOTED_P(X) (SLASH_P((X)[0]))
1239 #endif
1240
1241 /* On some systems, PIDGET is defined to extract the inferior pid from
1242 an internal pid that has the thread id and pid in seperate bit
1243 fields. If not defined, then just use the entire internal pid as
1244 the actual pid. */
1245
1246 #ifndef PIDGET
1247 #define PIDGET(PID) (PID)
1248 #define TIDGET(PID) 0
1249 #define MERGEPID(PID, TID) (PID)
1250 #endif
1251
1252 /* If under Cygwin, provide backwards compatibility with older
1253 Cygwin compilers that don't define the current cpp define. */
1254 #ifdef __CYGWIN32__
1255 #ifndef __CYGWIN__
1256 #define __CYGWIN__
1257 #endif
1258 #endif
1259
1260 /* Define well known filenos if the system does not define them. */
1261 #ifndef STDIN_FILENO
1262 #define STDIN_FILENO 0
1263 #endif
1264 #ifndef STDOUT_FILENO
1265 #define STDOUT_FILENO 1
1266 #endif
1267 #ifndef STDERR_FILENO
1268 #define STDERR_FILENO 2
1269 #endif
1270
1271 /* If this definition isn't overridden by the header files, assume
1272 that isatty and fileno exist on this system. */
1273 #ifndef ISATTY
1274 #define ISATTY(FP) (isatty (fileno (FP)))
1275 #endif
1276
1277 \f
1278 /* FIXME: cagney/1999-12-13: The following will be moved to gdb.h /
1279 libgdb.h or gdblib.h. */
1280
1281 /* Return-code (RC) from a gdb library call. (The abreviation RC is
1282 taken from the sim/common directory.) */
1283
1284 enum gdb_rc {
1285 /* The operation failed. The failure message can be fetched by
1286 calling ``char *error_last_message(void)''. The value is
1287 determined by the catch_errors() interface. */
1288 /* NOTE: Since ``defs.h:catch_errors()'' does not return an error /
1289 internal / quit indication it is not possible to return that
1290 here. */
1291 GDB_RC_FAIL = 0,
1292 /* No error occured but nothing happened. Due to the catch_errors()
1293 interface, this must be non-zero. */
1294 GDB_RC_NONE = 1,
1295 /* The operation was successful. Due to the catch_errors()
1296 interface, this must be non-zero. */
1297 GDB_RC_OK = 2
1298 };
1299
1300
1301 /* Print the specified breakpoint on GDB_STDOUT. (Eventually this
1302 function will ``print'' the object on ``output''). */
1303 enum gdb_rc gdb_breakpoint_query (/* struct {ui,gdb}_out *output, */ int bnum);
1304
1305 /* Create a breakpoint at ADDRESS (a GDB source and line). */
1306 enum gdb_rc gdb_breakpoint (char *address, char *condition,
1307 int hardwareflag, int tempflag,
1308 int thread, int ignore_count);
1309 enum gdb_rc gdb_thread_select (/* output object */ char *tidstr);
1310
1311 #ifdef UI_OUT
1312 /* Print a list of known thread ids. */
1313 enum gdb_rc gdb_list_thread_ids (/* output object */);
1314
1315 /* Switch thread and print notification. */
1316 #endif
1317 #endif /* #ifndef DEFS_H */
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