1 /* General utility routines for GDB, the GNU debugger.
3 Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
4 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free
5 Software Foundation, Inc.
7 This file is part of GDB.
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.
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.
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. */
25 #include "gdb_assert.h"
27 #include "gdb_string.h"
28 #include "event-top.h"
29 #include "exceptions.h"
32 #include "tui/tui.h" /* For tui_get_command_dimension. */
39 /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */
50 #include "expression.h"
54 #include "filenames.h"
57 #include "inferior.h" /* for signed_pointer_to_address */
59 #include <sys/param.h> /* For MAXPATHLEN */
61 #include "gdb_curses.h"
63 #include "readline/readline.h"
65 #ifdef NEED_DECLARATION_MALLOC
66 extern PTR
malloc (); /* OK: PTR */
68 #ifdef NEED_DECLARATION_REALLOC
69 extern PTR
realloc (); /* OK: PTR */
71 #ifdef NEED_DECLARATION_FREE
74 /* Actually, we'll never have the decl, since we don't define _GNU_SOURCE. */
75 #if defined(HAVE_CANONICALIZE_FILE_NAME) \
76 && defined(NEED_DECLARATION_CANONICALIZE_FILE_NAME)
77 extern char *canonicalize_file_name (const char *);
80 /* readline defines this. */
83 void (*deprecated_error_begin_hook
) (void);
85 /* Prototypes for local functions */
87 static void vfprintf_maybe_filtered (struct ui_file
*, const char *,
90 static void fputs_maybe_filtered (const char *, struct ui_file
*, int);
92 static void do_my_cleanups (struct cleanup
**, struct cleanup
*);
94 static void prompt_for_continue (void);
96 static void set_screen_size (void);
97 static void set_width (void);
99 /* Chain of cleanup actions established with make_cleanup,
100 to be executed if an error happens. */
102 static struct cleanup
*cleanup_chain
; /* cleaned up after a failed command */
103 static struct cleanup
*final_cleanup_chain
; /* cleaned up when gdb exits */
104 static struct cleanup
*run_cleanup_chain
; /* cleaned up on each 'run' */
105 static struct cleanup
*exec_cleanup_chain
; /* cleaned up on each execution command */
106 /* cleaned up on each error from within an execution command */
107 static struct cleanup
*exec_error_cleanup_chain
;
109 /* Pointer to what is left to do for an execution command after the
110 target stops. Used only in asynchronous mode, by targets that
111 support async execution. The finish and until commands use it. So
112 does the target extended-remote command. */
113 struct continuation
*cmd_continuation
;
114 struct continuation
*intermediate_continuation
;
116 /* Nonzero if we have job control. */
120 /* Nonzero means a quit has been requested. */
124 /* Nonzero means quit immediately if Control-C is typed now, rather
125 than waiting until QUIT is executed. Be careful in setting this;
126 code which executes with immediate_quit set has to be very careful
127 about being able to deal with being interrupted at any time. It is
128 almost always better to use QUIT; the only exception I can think of
129 is being able to quit out of a system call (using EINTR loses if
130 the SIGINT happens between the previous QUIT and the system call).
131 To immediately quit in the case in which a SIGINT happens between
132 the previous QUIT and setting immediate_quit (desirable anytime we
133 expect to block), call QUIT after setting immediate_quit. */
137 /* Nonzero means that encoded C++/ObjC names should be printed out in their
138 C++/ObjC form rather than raw. */
142 /* Nonzero means that encoded C++/ObjC names should be printed out in their
143 C++/ObjC form even in assembler language displays. If this is set, but
144 DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */
146 int asm_demangle
= 0;
148 /* Nonzero means that strings with character values >0x7F should be printed
149 as octal escapes. Zero means just print the value (e.g. it's an
150 international character, and the terminal or window can cope.) */
152 int sevenbit_strings
= 0;
154 /* String to be printed before error messages, if any. */
156 char *error_pre_print
;
158 /* String to be printed before quit messages, if any. */
160 char *quit_pre_print
;
162 /* String to be printed before warning messages, if any. */
164 char *warning_pre_print
= "\nwarning: ";
166 int pagination_enabled
= 1;
169 /* Add a new cleanup to the cleanup_chain,
170 and return the previous chain pointer
171 to be passed later to do_cleanups or discard_cleanups.
172 Args are FUNCTION to clean up with, and ARG to pass to it. */
175 make_cleanup (make_cleanup_ftype
*function
, void *arg
)
177 return make_my_cleanup (&cleanup_chain
, function
, arg
);
181 make_final_cleanup (make_cleanup_ftype
*function
, void *arg
)
183 return make_my_cleanup (&final_cleanup_chain
, function
, arg
);
187 make_run_cleanup (make_cleanup_ftype
*function
, void *arg
)
189 return make_my_cleanup (&run_cleanup_chain
, function
, arg
);
193 make_exec_cleanup (make_cleanup_ftype
*function
, void *arg
)
195 return make_my_cleanup (&exec_cleanup_chain
, function
, arg
);
199 make_exec_error_cleanup (make_cleanup_ftype
*function
, void *arg
)
201 return make_my_cleanup (&exec_error_cleanup_chain
, function
, arg
);
205 do_freeargv (void *arg
)
207 freeargv ((char **) arg
);
211 make_cleanup_freeargv (char **arg
)
213 return make_my_cleanup (&cleanup_chain
, do_freeargv
, arg
);
217 do_bfd_close_cleanup (void *arg
)
223 make_cleanup_bfd_close (bfd
*abfd
)
225 return make_cleanup (do_bfd_close_cleanup
, abfd
);
229 do_close_cleanup (void *arg
)
237 make_cleanup_close (int fd
)
239 int *saved_fd
= xmalloc (sizeof (fd
));
241 return make_cleanup (do_close_cleanup
, saved_fd
);
245 do_ui_file_delete (void *arg
)
247 ui_file_delete (arg
);
251 make_cleanup_ui_file_delete (struct ui_file
*arg
)
253 return make_my_cleanup (&cleanup_chain
, do_ui_file_delete
, arg
);
257 do_free_section_addr_info (void *arg
)
259 free_section_addr_info (arg
);
263 make_cleanup_free_section_addr_info (struct section_addr_info
*addrs
)
265 return make_my_cleanup (&cleanup_chain
, do_free_section_addr_info
, addrs
);
270 make_my_cleanup (struct cleanup
**pmy_chain
, make_cleanup_ftype
*function
,
274 = (struct cleanup
*) xmalloc (sizeof (struct cleanup
));
275 struct cleanup
*old_chain
= *pmy_chain
;
277 new->next
= *pmy_chain
;
278 new->function
= function
;
285 /* Discard cleanups and do the actions they describe
286 until we get back to the point OLD_CHAIN in the cleanup_chain. */
289 do_cleanups (struct cleanup
*old_chain
)
291 do_my_cleanups (&cleanup_chain
, old_chain
);
295 do_final_cleanups (struct cleanup
*old_chain
)
297 do_my_cleanups (&final_cleanup_chain
, old_chain
);
301 do_run_cleanups (struct cleanup
*old_chain
)
303 do_my_cleanups (&run_cleanup_chain
, old_chain
);
307 do_exec_cleanups (struct cleanup
*old_chain
)
309 do_my_cleanups (&exec_cleanup_chain
, old_chain
);
313 do_exec_error_cleanups (struct cleanup
*old_chain
)
315 do_my_cleanups (&exec_error_cleanup_chain
, old_chain
);
319 do_my_cleanups (struct cleanup
**pmy_chain
,
320 struct cleanup
*old_chain
)
323 while ((ptr
= *pmy_chain
) != old_chain
)
325 *pmy_chain
= ptr
->next
; /* Do this first incase recursion */
326 (*ptr
->function
) (ptr
->arg
);
331 /* Discard cleanups, not doing the actions they describe,
332 until we get back to the point OLD_CHAIN in the cleanup_chain. */
335 discard_cleanups (struct cleanup
*old_chain
)
337 discard_my_cleanups (&cleanup_chain
, old_chain
);
341 discard_final_cleanups (struct cleanup
*old_chain
)
343 discard_my_cleanups (&final_cleanup_chain
, old_chain
);
347 discard_exec_error_cleanups (struct cleanup
*old_chain
)
349 discard_my_cleanups (&exec_error_cleanup_chain
, old_chain
);
353 discard_my_cleanups (struct cleanup
**pmy_chain
,
354 struct cleanup
*old_chain
)
357 while ((ptr
= *pmy_chain
) != old_chain
)
359 *pmy_chain
= ptr
->next
;
364 /* Set the cleanup_chain to 0, and return the old cleanup chain. */
368 return save_my_cleanups (&cleanup_chain
);
372 save_final_cleanups (void)
374 return save_my_cleanups (&final_cleanup_chain
);
378 save_my_cleanups (struct cleanup
**pmy_chain
)
380 struct cleanup
*old_chain
= *pmy_chain
;
386 /* Restore the cleanup chain from a previously saved chain. */
388 restore_cleanups (struct cleanup
*chain
)
390 restore_my_cleanups (&cleanup_chain
, chain
);
394 restore_final_cleanups (struct cleanup
*chain
)
396 restore_my_cleanups (&final_cleanup_chain
, chain
);
400 restore_my_cleanups (struct cleanup
**pmy_chain
, struct cleanup
*chain
)
405 /* This function is useful for cleanups.
409 old_chain = make_cleanup (free_current_contents, &foo);
411 to arrange to free the object thus allocated. */
414 free_current_contents (void *ptr
)
416 void **location
= ptr
;
417 if (location
== NULL
)
418 internal_error (__FILE__
, __LINE__
,
419 "free_current_contents: NULL pointer");
420 if (*location
!= NULL
)
427 /* Provide a known function that does nothing, to use as a base for
428 for a possibly long chain of cleanups. This is useful where we
429 use the cleanup chain for handling normal cleanups as well as dealing
430 with cleanups that need to be done as a result of a call to error().
431 In such cases, we may not be certain where the first cleanup is, unless
432 we have a do-nothing one to always use as the base. */
435 null_cleanup (void *arg
)
439 /* Add a continuation to the continuation list, the global list
440 cmd_continuation. The new continuation will be added at the front.*/
442 add_continuation (void (*continuation_hook
) (struct continuation_arg
*),
443 struct continuation_arg
*arg_list
)
445 struct continuation
*continuation_ptr
;
448 (struct continuation
*) xmalloc (sizeof (struct continuation
));
449 continuation_ptr
->continuation_hook
= continuation_hook
;
450 continuation_ptr
->arg_list
= arg_list
;
451 continuation_ptr
->next
= cmd_continuation
;
452 cmd_continuation
= continuation_ptr
;
455 /* Walk down the cmd_continuation list, and execute all the
456 continuations. There is a problem though. In some cases new
457 continuations may be added while we are in the middle of this
458 loop. If this happens they will be added in the front, and done
459 before we have a chance of exhausting those that were already
460 there. We need to then save the beginning of the list in a pointer
461 and do the continuations from there on, instead of using the
462 global beginning of list as our iteration pointer. */
464 do_all_continuations (void)
466 struct continuation
*continuation_ptr
;
467 struct continuation
*saved_continuation
;
469 /* Copy the list header into another pointer, and set the global
470 list header to null, so that the global list can change as a side
471 effect of invoking the continuations and the processing of
472 the preexisting continuations will not be affected. */
473 continuation_ptr
= cmd_continuation
;
474 cmd_continuation
= NULL
;
476 /* Work now on the list we have set aside. */
477 while (continuation_ptr
)
479 (continuation_ptr
->continuation_hook
) (continuation_ptr
->arg_list
);
480 saved_continuation
= continuation_ptr
;
481 continuation_ptr
= continuation_ptr
->next
;
482 xfree (saved_continuation
);
486 /* Walk down the cmd_continuation list, and get rid of all the
489 discard_all_continuations (void)
491 struct continuation
*continuation_ptr
;
493 while (cmd_continuation
)
495 continuation_ptr
= cmd_continuation
;
496 cmd_continuation
= continuation_ptr
->next
;
497 xfree (continuation_ptr
);
501 /* Add a continuation to the continuation list, the global list
502 intermediate_continuation. The new continuation will be added at
505 add_intermediate_continuation (void (*continuation_hook
)
506 (struct continuation_arg
*),
507 struct continuation_arg
*arg_list
)
509 struct continuation
*continuation_ptr
;
512 (struct continuation
*) xmalloc (sizeof (struct continuation
));
513 continuation_ptr
->continuation_hook
= continuation_hook
;
514 continuation_ptr
->arg_list
= arg_list
;
515 continuation_ptr
->next
= intermediate_continuation
;
516 intermediate_continuation
= continuation_ptr
;
519 /* Walk down the cmd_continuation list, and execute all the
520 continuations. There is a problem though. In some cases new
521 continuations may be added while we are in the middle of this
522 loop. If this happens they will be added in the front, and done
523 before we have a chance of exhausting those that were already
524 there. We need to then save the beginning of the list in a pointer
525 and do the continuations from there on, instead of using the
526 global beginning of list as our iteration pointer.*/
528 do_all_intermediate_continuations (void)
530 struct continuation
*continuation_ptr
;
531 struct continuation
*saved_continuation
;
533 /* Copy the list header into another pointer, and set the global
534 list header to null, so that the global list can change as a side
535 effect of invoking the continuations and the processing of
536 the preexisting continuations will not be affected. */
537 continuation_ptr
= intermediate_continuation
;
538 intermediate_continuation
= NULL
;
540 /* Work now on the list we have set aside. */
541 while (continuation_ptr
)
543 (continuation_ptr
->continuation_hook
) (continuation_ptr
->arg_list
);
544 saved_continuation
= continuation_ptr
;
545 continuation_ptr
= continuation_ptr
->next
;
546 xfree (saved_continuation
);
550 /* Walk down the cmd_continuation list, and get rid of all the
553 discard_all_intermediate_continuations (void)
555 struct continuation
*continuation_ptr
;
557 while (intermediate_continuation
)
559 continuation_ptr
= intermediate_continuation
;
560 intermediate_continuation
= continuation_ptr
->next
;
561 xfree (continuation_ptr
);
567 /* Print a warning message. The first argument STRING is the warning
568 message, used as an fprintf format string, the second is the
569 va_list of arguments for that string. A warning is unfiltered (not
570 paginated) so that the user does not need to page through each
571 screen full of warnings when there are lots of them. */
574 vwarning (const char *string
, va_list args
)
576 if (deprecated_warning_hook
)
577 (*deprecated_warning_hook
) (string
, args
);
580 target_terminal_ours ();
581 wrap_here (""); /* Force out any buffered output */
582 gdb_flush (gdb_stdout
);
583 if (warning_pre_print
)
584 fputs_unfiltered (warning_pre_print
, gdb_stderr
);
585 vfprintf_unfiltered (gdb_stderr
, string
, args
);
586 fprintf_unfiltered (gdb_stderr
, "\n");
591 /* Print a warning message.
592 The first argument STRING is the warning message, used as a fprintf string,
593 and the remaining args are passed as arguments to it.
594 The primary difference between warnings and errors is that a warning
595 does not force the return to command level. */
598 warning (const char *string
, ...)
601 va_start (args
, string
);
602 vwarning (string
, args
);
606 /* Print an error message and return to command level.
607 The first argument STRING is the error message, used as a fprintf string,
608 and the remaining args are passed as arguments to it. */
611 verror (const char *string
, va_list args
)
613 throw_verror (GENERIC_ERROR
, string
, args
);
617 error (const char *string
, ...)
620 va_start (args
, string
);
621 throw_verror (GENERIC_ERROR
, string
, args
);
625 /* Print an error message and quit.
626 The first argument STRING is the error message, used as a fprintf string,
627 and the remaining args are passed as arguments to it. */
630 vfatal (const char *string
, va_list args
)
632 throw_vfatal (string
, args
);
636 fatal (const char *string
, ...)
639 va_start (args
, string
);
640 throw_vfatal (string
, args
);
644 /* Output an error message including any pre-print text to gdb_stderr. */
646 error_output_message (char *pre_print
, char *msg
)
648 target_terminal_ours ();
649 wrap_here (""); /* Force out any buffered output */
650 gdb_flush (gdb_stdout
);
651 annotate_error_begin ();
653 fputs_filtered (pre_print
, gdb_stderr
);
654 fputs_filtered (msg
, gdb_stderr
);
655 fprintf_filtered (gdb_stderr
, "\n");
659 error_stream (struct ui_file
*stream
)
662 char *message
= ui_file_xstrdup (stream
, &len
);
663 make_cleanup (xfree
, message
);
664 error ("%s", message
);
667 /* Print a message reporting an internal error/warning. Ask the user
668 if they want to continue, dump core, or just exit. Return
669 something to indicate a quit. */
671 struct internal_problem
674 /* FIXME: cagney/2002-08-15: There should be ``maint set/show''
675 commands available for controlling these variables. */
676 enum auto_boolean should_quit
;
677 enum auto_boolean should_dump_core
;
680 /* Report a problem, internal to GDB, to the user. Once the problem
681 has been reported, and assuming GDB didn't quit, the caller can
682 either allow execution to resume or throw an error. */
685 internal_vproblem (struct internal_problem
*problem
,
686 const char *file
, int line
, const char *fmt
, va_list ap
)
693 /* Don't allow infinite error/warning recursion. */
695 static char msg
[] = "Recursive internal problem.\n";
703 fputs_unfiltered (msg
, gdb_stderr
);
704 abort (); /* NOTE: GDB has only three calls to abort(). */
707 write (STDERR_FILENO
, msg
, sizeof (msg
));
712 /* Try to get the message out and at the start of a new line. */
713 target_terminal_ours ();
716 /* Create a string containing the full error/warning message. Need
717 to call query with this full string, as otherwize the reason
718 (error/warning) and question become separated. Format using a
719 style similar to a compiler error message. Include extra detail
720 so that the user knows that they are living on the edge. */
723 msg
= xstrvprintf (fmt
, ap
);
724 reason
= xstrprintf ("\
726 A problem internal to GDB has been detected,\n\
727 further debugging may prove unreliable.", file
, line
, problem
->name
, msg
);
729 make_cleanup (xfree
, reason
);
732 switch (problem
->should_quit
)
734 case AUTO_BOOLEAN_AUTO
:
735 /* Default (yes/batch case) is to quit GDB. When in batch mode
736 this lessens the likelhood of GDB going into an infinate
738 quit_p
= query ("%s\nQuit this debugging session? ", reason
);
740 case AUTO_BOOLEAN_TRUE
:
743 case AUTO_BOOLEAN_FALSE
:
747 internal_error (__FILE__
, __LINE__
, "bad switch");
750 switch (problem
->should_dump_core
)
752 case AUTO_BOOLEAN_AUTO
:
753 /* Default (yes/batch case) is to dump core. This leaves a GDB
754 `dropping' so that it is easier to see that something went
756 dump_core_p
= query ("%s\nCreate a core file of GDB? ", reason
);
759 case AUTO_BOOLEAN_TRUE
:
762 case AUTO_BOOLEAN_FALSE
:
766 internal_error (__FILE__
, __LINE__
, "bad switch");
772 abort (); /* NOTE: GDB has only three calls to abort(). */
781 abort (); /* NOTE: GDB has only three calls to abort(). */
788 static struct internal_problem internal_error_problem
= {
789 "internal-error", AUTO_BOOLEAN_AUTO
, AUTO_BOOLEAN_AUTO
793 internal_verror (const char *file
, int line
, const char *fmt
, va_list ap
)
795 internal_vproblem (&internal_error_problem
, file
, line
, fmt
, ap
);
796 throw_reason (RETURN_ERROR
);
800 internal_error (const char *file
, int line
, const char *string
, ...)
803 va_start (ap
, string
);
804 internal_verror (file
, line
, string
, ap
);
808 static struct internal_problem internal_warning_problem
= {
809 "internal-warning", AUTO_BOOLEAN_AUTO
, AUTO_BOOLEAN_AUTO
813 internal_vwarning (const char *file
, int line
, const char *fmt
, va_list ap
)
815 internal_vproblem (&internal_warning_problem
, file
, line
, fmt
, ap
);
819 internal_warning (const char *file
, int line
, const char *string
, ...)
822 va_start (ap
, string
);
823 internal_vwarning (file
, line
, string
, ap
);
827 /* The strerror() function can return NULL for errno values that are
828 out of range. Provide a "safe" version that always returns a
832 safe_strerror (int errnum
)
837 msg
= strerror (errnum
);
840 sprintf (buf
, "(undocumented errno %d)", errnum
);
846 /* Print the system error message for errno, and also mention STRING
847 as the file name for which the error was encountered.
848 Then return to command level. */
851 perror_with_name (const char *string
)
856 err
= safe_strerror (errno
);
857 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
858 strcpy (combined
, string
);
859 strcat (combined
, ": ");
860 strcat (combined
, err
);
862 /* I understand setting these is a matter of taste. Still, some people
863 may clear errno but not know about bfd_error. Doing this here is not
865 bfd_set_error (bfd_error_no_error
);
868 error ("%s.", combined
);
871 /* Print the system error message for ERRCODE, and also mention STRING
872 as the file name for which the error was encountered. */
875 print_sys_errmsg (const char *string
, int errcode
)
880 err
= safe_strerror (errcode
);
881 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
882 strcpy (combined
, string
);
883 strcat (combined
, ": ");
884 strcat (combined
, err
);
886 /* We want anything which was printed on stdout to come out first, before
888 gdb_flush (gdb_stdout
);
889 fprintf_unfiltered (gdb_stderr
, "%s.\n", combined
);
892 /* Control C eventually causes this to be called, at a convenient time. */
897 struct serial
*gdb_stdout_serial
= serial_fdopen (1);
899 target_terminal_ours ();
901 /* We want all output to appear now, before we print "Quit". We
902 have 3 levels of buffering we have to flush (it's possible that
903 some of these should be changed to flush the lower-level ones
906 /* 1. The _filtered buffer. */
907 wrap_here ((char *) 0);
909 /* 2. The stdio buffer. */
910 gdb_flush (gdb_stdout
);
911 gdb_flush (gdb_stderr
);
913 /* 3. The system-level buffer. */
914 serial_drain_output (gdb_stdout_serial
);
915 serial_un_fdopen (gdb_stdout_serial
);
917 annotate_error_begin ();
919 /* Don't use *_filtered; we don't want to prompt the user to continue. */
921 fputs_unfiltered (quit_pre_print
, gdb_stderr
);
924 /* No steenking SIGINT will ever be coming our way when the
925 program is resumed. Don't lie. */
926 fprintf_unfiltered (gdb_stderr
, "Quit\n");
929 /* If there is no terminal switching for this target, then we can't
930 possibly get screwed by the lack of job control. */
931 || current_target
.to_terminal_ours
== NULL
)
932 fprintf_unfiltered (gdb_stderr
, "Quit\n");
934 fprintf_unfiltered (gdb_stderr
,
935 "Quit (expect signal SIGINT when the program is resumed)\n");
937 throw_reason (RETURN_QUIT
);
940 /* Control C comes here */
942 request_quit (int signo
)
945 /* Restore the signal handler. Harmless with BSD-style signals,
946 needed for System V-style signals. */
947 signal (signo
, request_quit
);
953 /* Called when a memory allocation fails, with the number of bytes of
954 memory requested in SIZE. */
961 internal_error (__FILE__
, __LINE__
,
962 "virtual memory exhausted: can't allocate %ld bytes.",
967 internal_error (__FILE__
, __LINE__
, "virtual memory exhausted.");
971 /* The xmalloc() (libiberty.h) family of memory management routines.
973 These are like the ISO-C malloc() family except that they implement
974 consistent semantics and guard against typical memory management
977 /* NOTE: These are declared using PTR to ensure consistency with
978 "libiberty.h". xfree() is GDB local. */
981 xmalloc (size_t size
)
985 /* See libiberty/xmalloc.c. This function need's to match that's
986 semantics. It never returns NULL. */
990 val
= malloc (size
); /* OK: malloc */
998 xrealloc (PTR ptr
, size_t size
) /* OK: PTR */
1002 /* See libiberty/xmalloc.c. This function need's to match that's
1003 semantics. It never returns NULL. */
1008 val
= realloc (ptr
, size
); /* OK: realloc */
1010 val
= malloc (size
); /* OK: malloc */
1018 xcalloc (size_t number
, size_t size
)
1022 /* See libiberty/xmalloc.c. This function need's to match that's
1023 semantics. It never returns NULL. */
1024 if (number
== 0 || size
== 0)
1030 mem
= calloc (number
, size
); /* OK: xcalloc */
1032 nomem (number
* size
);
1041 free (ptr
); /* OK: free */
1045 /* Like asprintf/vasprintf but get an internal_error if the call
1049 xstrprintf (const char *format
, ...)
1053 va_start (args
, format
);
1054 ret
= xstrvprintf (format
, args
);
1060 xasprintf (char **ret
, const char *format
, ...)
1063 va_start (args
, format
);
1064 (*ret
) = xstrvprintf (format
, args
);
1069 xvasprintf (char **ret
, const char *format
, va_list ap
)
1071 (*ret
) = xstrvprintf (format
, ap
);
1075 xstrvprintf (const char *format
, va_list ap
)
1078 int status
= vasprintf (&ret
, format
, ap
);
1079 /* NULL is returned when there was a memory allocation problem. */
1082 /* A negative status (the printed length) with a non-NULL buffer
1083 should never happen, but just to be sure. */
1085 internal_error (__FILE__
, __LINE__
,
1086 "vasprintf call failed (errno %d)", errno
);
1090 /* My replacement for the read system call.
1091 Used like `read' but keeps going if `read' returns too soon. */
1094 myread (int desc
, char *addr
, int len
)
1101 val
= read (desc
, addr
, len
);
1105 return orglen
- len
;
1112 /* Make a copy of the string at PTR with SIZE characters
1113 (and add a null character at the end in the copy).
1114 Uses malloc to get the space. Returns the address of the copy. */
1117 savestring (const char *ptr
, size_t size
)
1119 char *p
= (char *) xmalloc (size
+ 1);
1120 memcpy (p
, ptr
, size
);
1126 print_spaces (int n
, struct ui_file
*file
)
1128 fputs_unfiltered (n_spaces (n
), file
);
1131 /* Print a host address. */
1134 gdb_print_host_address (const void *addr
, struct ui_file
*stream
)
1137 /* We could use the %p conversion specifier to fprintf if we had any
1138 way of knowing whether this host supports it. But the following
1139 should work on the Alpha and on 32 bit machines. */
1141 fprintf_filtered (stream
, "0x%lx", (unsigned long) addr
);
1144 /* Ask user a y-or-n question and return 1 iff answer is yes.
1145 Takes three args which are given to printf to print the question.
1146 The first, a control string, should end in "? ".
1147 It should not say how to answer, because we do that. */
1151 query (const char *ctlstr
, ...)
1158 if (deprecated_query_hook
)
1160 va_start (args
, ctlstr
);
1161 return deprecated_query_hook (ctlstr
, args
);
1164 /* Automatically answer "yes" if input is not from a terminal. */
1165 if (!input_from_terminal_p ())
1170 wrap_here (""); /* Flush any buffered output */
1171 gdb_flush (gdb_stdout
);
1173 if (annotation_level
> 1)
1174 printf_filtered ("\n\032\032pre-query\n");
1176 va_start (args
, ctlstr
);
1177 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1179 printf_filtered ("(y or n) ");
1181 if (annotation_level
> 1)
1182 printf_filtered ("\n\032\032query\n");
1185 gdb_flush (gdb_stdout
);
1187 answer
= fgetc (stdin
);
1188 clearerr (stdin
); /* in case of C-d */
1189 if (answer
== EOF
) /* C-d */
1194 /* Eat rest of input line, to EOF or newline */
1198 ans2
= fgetc (stdin
);
1201 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1215 printf_filtered ("Please answer y or n.\n");
1218 if (annotation_level
> 1)
1219 printf_filtered ("\n\032\032post-query\n");
1224 /* This function supports the nquery() and yquery() functions.
1225 Ask user a y-or-n question and return 0 if answer is no, 1 if
1226 answer is yes, or default the answer to the specified default.
1227 DEFCHAR is either 'y' or 'n' and refers to the default answer.
1228 CTLSTR is the control string and should end in "? ". It should
1229 not say how to answer, because we do that.
1230 ARGS are the arguments passed along with the CTLSTR argument to
1234 defaulted_query (const char *ctlstr
, const char defchar
, va_list args
)
1240 char def_answer
, not_def_answer
;
1241 char *y_string
, *n_string
;
1243 /* Set up according to which answer is the default. */
1248 not_def_answer
= 'N';
1256 not_def_answer
= 'Y';
1261 if (deprecated_query_hook
)
1263 return deprecated_query_hook (ctlstr
, args
);
1266 /* Automatically answer default value if input is not from a terminal. */
1267 if (!input_from_terminal_p ())
1272 wrap_here (""); /* Flush any buffered output */
1273 gdb_flush (gdb_stdout
);
1275 if (annotation_level
> 1)
1276 printf_filtered ("\n\032\032pre-query\n");
1278 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1279 printf_filtered ("(%s or %s) ", y_string
, n_string
);
1281 if (annotation_level
> 1)
1282 printf_filtered ("\n\032\032query\n");
1285 gdb_flush (gdb_stdout
);
1287 answer
= fgetc (stdin
);
1288 clearerr (stdin
); /* in case of C-d */
1289 if (answer
== EOF
) /* C-d */
1294 /* Eat rest of input line, to EOF or newline */
1298 ans2
= fgetc (stdin
);
1301 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1305 /* Check answer. For the non-default, the user must specify
1306 the non-default explicitly. */
1307 if (answer
== not_def_answer
)
1309 retval
= !def_value
;
1312 /* Otherwise, for the default, the user may either specify
1313 the required input or have it default by entering nothing. */
1314 if (answer
== def_answer
|| answer
== '\n' ||
1315 answer
== '\r' || answer
== EOF
)
1320 /* Invalid entries are not defaulted and require another selection. */
1321 printf_filtered ("Please answer %s or %s.\n",
1322 y_string
, n_string
);
1325 if (annotation_level
> 1)
1326 printf_filtered ("\n\032\032post-query\n");
1331 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1332 answer is yes, or 0 if answer is defaulted.
1333 Takes three args which are given to printf to print the question.
1334 The first, a control string, should end in "? ".
1335 It should not say how to answer, because we do that. */
1338 nquery (const char *ctlstr
, ...)
1342 va_start (args
, ctlstr
);
1343 return defaulted_query (ctlstr
, 'n', args
);
1347 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1348 answer is yes, or 1 if answer is defaulted.
1349 Takes three args which are given to printf to print the question.
1350 The first, a control string, should end in "? ".
1351 It should not say how to answer, because we do that. */
1354 yquery (const char *ctlstr
, ...)
1358 va_start (args
, ctlstr
);
1359 return defaulted_query (ctlstr
, 'y', args
);
1363 /* Print an error message saying that we couldn't make sense of a
1364 \^mumble sequence in a string or character constant. START and END
1365 indicate a substring of some larger string that contains the
1366 erroneous backslash sequence, missing the initial backslash. */
1368 no_control_char_error (const char *start
, const char *end
)
1370 int len
= end
- start
;
1371 char *copy
= alloca (end
- start
+ 1);
1373 memcpy (copy
, start
, len
);
1376 error ("There is no control character `\\%s' in the `%s' character set.",
1377 copy
, target_charset ());
1380 /* Parse a C escape sequence. STRING_PTR points to a variable
1381 containing a pointer to the string to parse. That pointer
1382 should point to the character after the \. That pointer
1383 is updated past the characters we use. The value of the
1384 escape sequence is returned.
1386 A negative value means the sequence \ newline was seen,
1387 which is supposed to be equivalent to nothing at all.
1389 If \ is followed by a null character, we return a negative
1390 value and leave the string pointer pointing at the null character.
1392 If \ is followed by 000, we return 0 and leave the string pointer
1393 after the zeros. A value of 0 does not mean end of string. */
1396 parse_escape (char **string_ptr
)
1399 int c
= *(*string_ptr
)++;
1400 if (c_parse_backslash (c
, &target_char
))
1412 /* Remember where this escape sequence started, for reporting
1414 char *sequence_start_pos
= *string_ptr
- 1;
1416 c
= *(*string_ptr
)++;
1420 /* XXXCHARSET: What is `delete' in the host character set? */
1423 if (!host_char_to_target (c
, &target_char
))
1424 error ("There is no character corresponding to `Delete' "
1425 "in the target character set `%s'.", host_charset ());
1430 target_char
= parse_escape (string_ptr
);
1433 if (!host_char_to_target (c
, &target_char
))
1434 no_control_char_error (sequence_start_pos
, *string_ptr
);
1437 /* Now target_char is something like `c', and we want to find
1438 its control-character equivalent. */
1439 if (!target_char_to_control_char (target_char
, &target_char
))
1440 no_control_char_error (sequence_start_pos
, *string_ptr
);
1445 /* XXXCHARSET: we need to use isdigit and value-of-digit
1446 methods of the host character set here. */
1462 if (c
>= '0' && c
<= '7')
1476 if (!host_char_to_target (c
, &target_char
))
1478 ("The escape sequence `\%c' is equivalent to plain `%c', which"
1479 " has no equivalent\n" "in the `%s' character set.", c
, c
,
1485 /* Print the character C on STREAM as part of the contents of a literal
1486 string whose delimiter is QUOTER. Note that this routine should only
1487 be call for printing things which are independent of the language
1488 of the program being debugged. */
1491 printchar (int c
, void (*do_fputs
) (const char *, struct ui_file
*),
1492 void (*do_fprintf
) (struct ui_file
*, const char *, ...),
1493 struct ui_file
*stream
, int quoter
)
1496 c
&= 0xFF; /* Avoid sign bit follies */
1498 if (c
< 0x20 || /* Low control chars */
1499 (c
>= 0x7F && c
< 0xA0) || /* DEL, High controls */
1500 (sevenbit_strings
&& c
>= 0x80))
1501 { /* high order bit set */
1505 do_fputs ("\\n", stream
);
1508 do_fputs ("\\b", stream
);
1511 do_fputs ("\\t", stream
);
1514 do_fputs ("\\f", stream
);
1517 do_fputs ("\\r", stream
);
1520 do_fputs ("\\e", stream
);
1523 do_fputs ("\\a", stream
);
1526 do_fprintf (stream
, "\\%.3o", (unsigned int) c
);
1532 if (c
== '\\' || c
== quoter
)
1533 do_fputs ("\\", stream
);
1534 do_fprintf (stream
, "%c", c
);
1538 /* Print the character C on STREAM as part of the contents of a
1539 literal string whose delimiter is QUOTER. Note that these routines
1540 should only be call for printing things which are independent of
1541 the language of the program being debugged. */
1544 fputstr_filtered (const char *str
, int quoter
, struct ui_file
*stream
)
1547 printchar (*str
++, fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1551 fputstr_unfiltered (const char *str
, int quoter
, struct ui_file
*stream
)
1554 printchar (*str
++, fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1558 fputstrn_unfiltered (const char *str
, int n
, int quoter
,
1559 struct ui_file
*stream
)
1562 for (i
= 0; i
< n
; i
++)
1563 printchar (str
[i
], fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1567 /* Number of lines per page or UINT_MAX if paging is disabled. */
1568 static unsigned int lines_per_page
;
1570 /* Number of chars per line or UINT_MAX if line folding is disabled. */
1571 static unsigned int chars_per_line
;
1573 /* Current count of lines printed on this page, chars on this line. */
1574 static unsigned int lines_printed
, chars_printed
;
1576 /* Buffer and start column of buffered text, for doing smarter word-
1577 wrapping. When someone calls wrap_here(), we start buffering output
1578 that comes through fputs_filtered(). If we see a newline, we just
1579 spit it out and forget about the wrap_here(). If we see another
1580 wrap_here(), we spit it out and remember the newer one. If we see
1581 the end of the line, we spit out a newline, the indent, and then
1582 the buffered output. */
1584 /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which
1585 are waiting to be output (they have already been counted in chars_printed).
1586 When wrap_buffer[0] is null, the buffer is empty. */
1587 static char *wrap_buffer
;
1589 /* Pointer in wrap_buffer to the next character to fill. */
1590 static char *wrap_pointer
;
1592 /* String to indent by if the wrap occurs. Must not be NULL if wrap_column
1594 static char *wrap_indent
;
1596 /* Column number on the screen where wrap_buffer begins, or 0 if wrapping
1597 is not in effect. */
1598 static int wrap_column
;
1601 /* Inialize the number of lines per page and chars per line. */
1604 init_page_info (void)
1607 if (!tui_get_command_dimension (&chars_per_line
, &lines_per_page
))
1612 #if defined(__GO32__)
1613 rows
= ScreenRows ();
1614 cols
= ScreenCols ();
1615 lines_per_page
= rows
;
1616 chars_per_line
= cols
;
1618 /* Make sure Readline has initialized its terminal settings. */
1619 rl_reset_terminal (NULL
);
1621 /* Get the screen size from Readline. */
1622 rl_get_screen_size (&rows
, &cols
);
1623 lines_per_page
= rows
;
1624 chars_per_line
= cols
;
1626 /* Readline should have fetched the termcap entry for us. */
1627 if (tgetnum ("li") < 0 || getenv ("EMACS"))
1629 /* The number of lines per page is not mentioned in the
1630 terminal description. This probably means that paging is
1631 not useful (e.g. emacs shell window), so disable paging. */
1632 lines_per_page
= UINT_MAX
;
1635 /* FIXME: Get rid of this junk. */
1636 #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
1637 SIGWINCH_HANDLER (SIGWINCH
);
1640 /* If the output is not a terminal, don't paginate it. */
1641 if (!ui_file_isatty (gdb_stdout
))
1642 lines_per_page
= UINT_MAX
;
1650 /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */
1653 set_screen_size (void)
1655 int rows
= lines_per_page
;
1656 int cols
= chars_per_line
;
1662 rl_get_screen_size (NULL
, &cols
);
1664 /* Update Readline's idea of the terminal size. */
1665 rl_set_screen_size (rows
, cols
);
1668 /* Reinitialize WRAP_BUFFER according to the current value of
1674 if (chars_per_line
== 0)
1679 wrap_buffer
= (char *) xmalloc (chars_per_line
+ 2);
1680 wrap_buffer
[0] = '\0';
1683 wrap_buffer
= (char *) xrealloc (wrap_buffer
, chars_per_line
+ 2);
1684 wrap_pointer
= wrap_buffer
; /* Start it at the beginning. */
1688 set_width_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1695 set_height_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1700 /* Wait, so the user can read what's on the screen. Prompt the user
1701 to continue by pressing RETURN. */
1704 prompt_for_continue (void)
1707 char cont_prompt
[120];
1709 if (annotation_level
> 1)
1710 printf_unfiltered ("\n\032\032pre-prompt-for-continue\n");
1712 strcpy (cont_prompt
,
1713 "---Type <return> to continue, or q <return> to quit---");
1714 if (annotation_level
> 1)
1715 strcat (cont_prompt
, "\n\032\032prompt-for-continue\n");
1717 /* We must do this *before* we call gdb_readline, else it will eventually
1718 call us -- thinking that we're trying to print beyond the end of the
1720 reinitialize_more_filter ();
1723 /* On a real operating system, the user can quit with SIGINT.
1726 'q' is provided on all systems so users don't have to change habits
1727 from system to system, and because telling them what to do in
1728 the prompt is more user-friendly than expecting them to think of
1730 /* Call readline, not gdb_readline, because GO32 readline handles control-C
1731 whereas control-C to gdb_readline will cause the user to get dumped
1733 ignore
= gdb_readline_wrapper (cont_prompt
);
1735 if (annotation_level
> 1)
1736 printf_unfiltered ("\n\032\032post-prompt-for-continue\n");
1741 while (*p
== ' ' || *p
== '\t')
1744 async_request_quit (0);
1749 /* Now we have to do this again, so that GDB will know that it doesn't
1750 need to save the ---Type <return>--- line at the top of the screen. */
1751 reinitialize_more_filter ();
1753 dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */
1756 /* Reinitialize filter; ie. tell it to reset to original values. */
1759 reinitialize_more_filter (void)
1765 /* Indicate that if the next sequence of characters overflows the line,
1766 a newline should be inserted here rather than when it hits the end.
1767 If INDENT is non-null, it is a string to be printed to indent the
1768 wrapped part on the next line. INDENT must remain accessible until
1769 the next call to wrap_here() or until a newline is printed through
1772 If the line is already overfull, we immediately print a newline and
1773 the indentation, and disable further wrapping.
1775 If we don't know the width of lines, but we know the page height,
1776 we must not wrap words, but should still keep track of newlines
1777 that were explicitly printed.
1779 INDENT should not contain tabs, as that will mess up the char count
1780 on the next line. FIXME.
1782 This routine is guaranteed to force out any output which has been
1783 squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be
1784 used to force out output from the wrap_buffer. */
1787 wrap_here (char *indent
)
1789 /* This should have been allocated, but be paranoid anyway. */
1791 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
1795 *wrap_pointer
= '\0';
1796 fputs_unfiltered (wrap_buffer
, gdb_stdout
);
1798 wrap_pointer
= wrap_buffer
;
1799 wrap_buffer
[0] = '\0';
1800 if (chars_per_line
== UINT_MAX
) /* No line overflow checking */
1804 else if (chars_printed
>= chars_per_line
)
1806 puts_filtered ("\n");
1808 puts_filtered (indent
);
1813 wrap_column
= chars_printed
;
1817 wrap_indent
= indent
;
1821 /* Print input string to gdb_stdout, filtered, with wrap,
1822 arranging strings in columns of n chars. String can be
1823 right or left justified in the column. Never prints
1824 trailing spaces. String should never be longer than
1825 width. FIXME: this could be useful for the EXAMINE
1826 command, which currently doesn't tabulate very well */
1829 puts_filtered_tabular (char *string
, int width
, int right
)
1835 gdb_assert (chars_per_line
> 0);
1836 if (chars_per_line
== UINT_MAX
)
1838 fputs_filtered (string
, gdb_stdout
);
1839 fputs_filtered ("\n", gdb_stdout
);
1843 if (((chars_printed
- 1) / width
+ 2) * width
>= chars_per_line
)
1844 fputs_filtered ("\n", gdb_stdout
);
1846 if (width
>= chars_per_line
)
1847 width
= chars_per_line
- 1;
1849 stringlen
= strlen (string
);
1851 if (chars_printed
> 0)
1852 spaces
= width
- (chars_printed
- 1) % width
- 1;
1854 spaces
+= width
- stringlen
;
1856 spacebuf
= alloca (spaces
+ 1);
1857 spacebuf
[spaces
] = '\0';
1859 spacebuf
[spaces
] = ' ';
1861 fputs_filtered (spacebuf
, gdb_stdout
);
1862 fputs_filtered (string
, gdb_stdout
);
1866 /* Ensure that whatever gets printed next, using the filtered output
1867 commands, starts at the beginning of the line. I.E. if there is
1868 any pending output for the current line, flush it and start a new
1869 line. Otherwise do nothing. */
1874 if (chars_printed
> 0)
1876 puts_filtered ("\n");
1881 /* Like fputs but if FILTER is true, pause after every screenful.
1883 Regardless of FILTER can wrap at points other than the final
1884 character of a line.
1886 Unlike fputs, fputs_maybe_filtered does not return a value.
1887 It is OK for LINEBUFFER to be NULL, in which case just don't print
1890 Note that a longjmp to top level may occur in this routine (only if
1891 FILTER is true) (since prompt_for_continue may do so) so this
1892 routine should not be called when cleanups are not in place. */
1895 fputs_maybe_filtered (const char *linebuffer
, struct ui_file
*stream
,
1898 const char *lineptr
;
1900 if (linebuffer
== 0)
1903 /* Don't do any filtering if it is disabled. */
1904 if ((stream
!= gdb_stdout
) || !pagination_enabled
1905 || (lines_per_page
== UINT_MAX
&& chars_per_line
== UINT_MAX
))
1907 fputs_unfiltered (linebuffer
, stream
);
1911 /* Go through and output each character. Show line extension
1912 when this is necessary; prompt user for new page when this is
1915 lineptr
= linebuffer
;
1918 /* Possible new page. */
1919 if (filter
&& (lines_printed
>= lines_per_page
- 1))
1920 prompt_for_continue ();
1922 while (*lineptr
&& *lineptr
!= '\n')
1924 /* Print a single line. */
1925 if (*lineptr
== '\t')
1928 *wrap_pointer
++ = '\t';
1930 fputc_unfiltered ('\t', stream
);
1931 /* Shifting right by 3 produces the number of tab stops
1932 we have already passed, and then adding one and
1933 shifting left 3 advances to the next tab stop. */
1934 chars_printed
= ((chars_printed
>> 3) + 1) << 3;
1940 *wrap_pointer
++ = *lineptr
;
1942 fputc_unfiltered (*lineptr
, stream
);
1947 if (chars_printed
>= chars_per_line
)
1949 unsigned int save_chars
= chars_printed
;
1953 /* If we aren't actually wrapping, don't output newline --
1954 if chars_per_line is right, we probably just overflowed
1955 anyway; if it's wrong, let us keep going. */
1957 fputc_unfiltered ('\n', stream
);
1959 /* Possible new page. */
1960 if (lines_printed
>= lines_per_page
- 1)
1961 prompt_for_continue ();
1963 /* Now output indentation and wrapped string */
1966 fputs_unfiltered (wrap_indent
, stream
);
1967 *wrap_pointer
= '\0'; /* Null-terminate saved stuff */
1968 fputs_unfiltered (wrap_buffer
, stream
); /* and eject it */
1969 /* FIXME, this strlen is what prevents wrap_indent from
1970 containing tabs. However, if we recurse to print it
1971 and count its chars, we risk trouble if wrap_indent is
1972 longer than (the user settable) chars_per_line.
1973 Note also that this can set chars_printed > chars_per_line
1974 if we are printing a long string. */
1975 chars_printed
= strlen (wrap_indent
)
1976 + (save_chars
- wrap_column
);
1977 wrap_pointer
= wrap_buffer
; /* Reset buffer */
1978 wrap_buffer
[0] = '\0';
1979 wrap_column
= 0; /* And disable fancy wrap */
1984 if (*lineptr
== '\n')
1987 wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */
1989 fputc_unfiltered ('\n', stream
);
1996 fputs_filtered (const char *linebuffer
, struct ui_file
*stream
)
1998 fputs_maybe_filtered (linebuffer
, stream
, 1);
2002 putchar_unfiltered (int c
)
2005 ui_file_write (gdb_stdout
, &buf
, 1);
2009 /* Write character C to gdb_stdout using GDB's paging mechanism and return C.
2010 May return nonlocally. */
2013 putchar_filtered (int c
)
2015 return fputc_filtered (c
, gdb_stdout
);
2019 fputc_unfiltered (int c
, struct ui_file
*stream
)
2022 ui_file_write (stream
, &buf
, 1);
2027 fputc_filtered (int c
, struct ui_file
*stream
)
2033 fputs_filtered (buf
, stream
);
2037 /* puts_debug is like fputs_unfiltered, except it prints special
2038 characters in printable fashion. */
2041 puts_debug (char *prefix
, char *string
, char *suffix
)
2045 /* Print prefix and suffix after each line. */
2046 static int new_line
= 1;
2047 static int return_p
= 0;
2048 static char *prev_prefix
= "";
2049 static char *prev_suffix
= "";
2051 if (*string
== '\n')
2054 /* If the prefix is changing, print the previous suffix, a new line,
2055 and the new prefix. */
2056 if ((return_p
|| (strcmp (prev_prefix
, prefix
) != 0)) && !new_line
)
2058 fputs_unfiltered (prev_suffix
, gdb_stdlog
);
2059 fputs_unfiltered ("\n", gdb_stdlog
);
2060 fputs_unfiltered (prefix
, gdb_stdlog
);
2063 /* Print prefix if we printed a newline during the previous call. */
2067 fputs_unfiltered (prefix
, gdb_stdlog
);
2070 prev_prefix
= prefix
;
2071 prev_suffix
= suffix
;
2073 /* Output characters in a printable format. */
2074 while ((ch
= *string
++) != '\0')
2080 fputc_unfiltered (ch
, gdb_stdlog
);
2083 fprintf_unfiltered (gdb_stdlog
, "\\x%02x", ch
& 0xff);
2087 fputs_unfiltered ("\\\\", gdb_stdlog
);
2090 fputs_unfiltered ("\\b", gdb_stdlog
);
2093 fputs_unfiltered ("\\f", gdb_stdlog
);
2097 fputs_unfiltered ("\\n", gdb_stdlog
);
2100 fputs_unfiltered ("\\r", gdb_stdlog
);
2103 fputs_unfiltered ("\\t", gdb_stdlog
);
2106 fputs_unfiltered ("\\v", gdb_stdlog
);
2110 return_p
= ch
== '\r';
2113 /* Print suffix if we printed a newline. */
2116 fputs_unfiltered (suffix
, gdb_stdlog
);
2117 fputs_unfiltered ("\n", gdb_stdlog
);
2122 /* Print a variable number of ARGS using format FORMAT. If this
2123 information is going to put the amount written (since the last call
2124 to REINITIALIZE_MORE_FILTER or the last page break) over the page size,
2125 call prompt_for_continue to get the users permision to continue.
2127 Unlike fprintf, this function does not return a value.
2129 We implement three variants, vfprintf (takes a vararg list and stream),
2130 fprintf (takes a stream to write on), and printf (the usual).
2132 Note also that a longjmp to top level may occur in this routine
2133 (since prompt_for_continue may do so) so this routine should not be
2134 called when cleanups are not in place. */
2137 vfprintf_maybe_filtered (struct ui_file
*stream
, const char *format
,
2138 va_list args
, int filter
)
2141 struct cleanup
*old_cleanups
;
2143 linebuffer
= xstrvprintf (format
, args
);
2144 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2145 fputs_maybe_filtered (linebuffer
, stream
, filter
);
2146 do_cleanups (old_cleanups
);
2151 vfprintf_filtered (struct ui_file
*stream
, const char *format
, va_list args
)
2153 vfprintf_maybe_filtered (stream
, format
, args
, 1);
2157 vfprintf_unfiltered (struct ui_file
*stream
, const char *format
, va_list args
)
2160 struct cleanup
*old_cleanups
;
2162 linebuffer
= xstrvprintf (format
, args
);
2163 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2164 fputs_unfiltered (linebuffer
, stream
);
2165 do_cleanups (old_cleanups
);
2169 vprintf_filtered (const char *format
, va_list args
)
2171 vfprintf_maybe_filtered (gdb_stdout
, format
, args
, 1);
2175 vprintf_unfiltered (const char *format
, va_list args
)
2177 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2181 fprintf_filtered (struct ui_file
*stream
, const char *format
, ...)
2184 va_start (args
, format
);
2185 vfprintf_filtered (stream
, format
, args
);
2190 fprintf_unfiltered (struct ui_file
*stream
, const char *format
, ...)
2193 va_start (args
, format
);
2194 vfprintf_unfiltered (stream
, format
, args
);
2198 /* Like fprintf_filtered, but prints its result indented.
2199 Called as fprintfi_filtered (spaces, stream, format, ...); */
2202 fprintfi_filtered (int spaces
, struct ui_file
*stream
, const char *format
,
2206 va_start (args
, format
);
2207 print_spaces_filtered (spaces
, stream
);
2209 vfprintf_filtered (stream
, format
, args
);
2215 printf_filtered (const char *format
, ...)
2218 va_start (args
, format
);
2219 vfprintf_filtered (gdb_stdout
, format
, args
);
2225 printf_unfiltered (const char *format
, ...)
2228 va_start (args
, format
);
2229 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2233 /* Like printf_filtered, but prints it's result indented.
2234 Called as printfi_filtered (spaces, format, ...); */
2237 printfi_filtered (int spaces
, const char *format
, ...)
2240 va_start (args
, format
);
2241 print_spaces_filtered (spaces
, gdb_stdout
);
2242 vfprintf_filtered (gdb_stdout
, format
, args
);
2246 /* Easy -- but watch out!
2248 This routine is *not* a replacement for puts()! puts() appends a newline.
2249 This one doesn't, and had better not! */
2252 puts_filtered (const char *string
)
2254 fputs_filtered (string
, gdb_stdout
);
2258 puts_unfiltered (const char *string
)
2260 fputs_unfiltered (string
, gdb_stdout
);
2263 /* Return a pointer to N spaces and a null. The pointer is good
2264 until the next call to here. */
2269 static char *spaces
= 0;
2270 static int max_spaces
= -1;
2276 spaces
= (char *) xmalloc (n
+ 1);
2277 for (t
= spaces
+ n
; t
!= spaces
;)
2283 return spaces
+ max_spaces
- n
;
2286 /* Print N spaces. */
2288 print_spaces_filtered (int n
, struct ui_file
*stream
)
2290 fputs_filtered (n_spaces (n
), stream
);
2293 /* C++/ObjC demangler stuff. */
2295 /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language
2296 LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
2297 If the name is not mangled, or the language for the name is unknown, or
2298 demangling is off, the name is printed in its "raw" form. */
2301 fprintf_symbol_filtered (struct ui_file
*stream
, char *name
,
2302 enum language lang
, int arg_mode
)
2308 /* If user wants to see raw output, no problem. */
2311 fputs_filtered (name
, stream
);
2315 demangled
= language_demangle (language_def (lang
), name
, arg_mode
);
2316 fputs_filtered (demangled
? demangled
: name
, stream
);
2317 if (demangled
!= NULL
)
2325 /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any
2326 differences in whitespace. Returns 0 if they match, non-zero if they
2327 don't (slightly different than strcmp()'s range of return values).
2329 As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO".
2330 This "feature" is useful when searching for matching C++ function names
2331 (such as if the user types 'break FOO', where FOO is a mangled C++
2335 strcmp_iw (const char *string1
, const char *string2
)
2337 while ((*string1
!= '\0') && (*string2
!= '\0'))
2339 while (isspace (*string1
))
2343 while (isspace (*string2
))
2347 if (*string1
!= *string2
)
2351 if (*string1
!= '\0')
2357 return (*string1
!= '\0' && *string1
!= '(') || (*string2
!= '\0');
2360 /* This is like strcmp except that it ignores whitespace and treats
2361 '(' as the first non-NULL character in terms of ordering. Like
2362 strcmp (and unlike strcmp_iw), it returns negative if STRING1 <
2363 STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2
2364 according to that ordering.
2366 If a list is sorted according to this function and if you want to
2367 find names in the list that match some fixed NAME according to
2368 strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
2369 where this function would put NAME.
2371 Here are some examples of why using strcmp to sort is a bad idea:
2375 Say your partial symtab contains: "foo<char *>", "goo". Then, if
2376 we try to do a search for "foo<char*>", strcmp will locate this
2377 after "foo<char *>" and before "goo". Then lookup_partial_symbol
2378 will start looking at strings beginning with "goo", and will never
2379 see the correct match of "foo<char *>".
2381 Parenthesis example:
2383 In practice, this is less like to be an issue, but I'll give it a
2384 shot. Let's assume that '$' is a legitimate character to occur in
2385 symbols. (Which may well even be the case on some systems.) Then
2386 say that the partial symbol table contains "foo$" and "foo(int)".
2387 strcmp will put them in this order, since '$' < '('. Now, if the
2388 user searches for "foo", then strcmp will sort "foo" before "foo$".
2389 Then lookup_partial_symbol will notice that strcmp_iw("foo$",
2390 "foo") is false, so it won't proceed to the actual match of
2391 "foo(int)" with "foo". */
2394 strcmp_iw_ordered (const char *string1
, const char *string2
)
2396 while ((*string1
!= '\0') && (*string2
!= '\0'))
2398 while (isspace (*string1
))
2402 while (isspace (*string2
))
2406 if (*string1
!= *string2
)
2410 if (*string1
!= '\0')
2419 /* Characters are non-equal unless they're both '\0'; we want to
2420 make sure we get the comparison right according to our
2421 comparison in the cases where one of them is '\0' or '('. */
2423 if (*string2
== '\0')
2428 if (*string2
== '\0')
2433 if (*string2
== '(')
2436 return *string1
- *string2
;
2440 /* A simple comparison function with opposite semantics to strcmp. */
2443 streq (const char *lhs
, const char *rhs
)
2445 return !strcmp (lhs
, rhs
);
2451 ** Answer whether string_to_compare is a full or partial match to
2452 ** template_string. The partial match must be in sequence starting
2456 subset_compare (char *string_to_compare
, char *template_string
)
2459 if (template_string
!= (char *) NULL
&& string_to_compare
!= (char *) NULL
2460 && strlen (string_to_compare
) <= strlen (template_string
))
2463 (template_string
, string_to_compare
, strlen (string_to_compare
)) == 0);
2470 static void pagination_on_command (char *arg
, int from_tty
);
2472 pagination_on_command (char *arg
, int from_tty
)
2474 pagination_enabled
= 1;
2477 static void pagination_on_command (char *arg
, int from_tty
);
2479 pagination_off_command (char *arg
, int from_tty
)
2481 pagination_enabled
= 0;
2486 initialize_utils (void)
2488 struct cmd_list_element
*c
;
2490 c
= add_set_cmd ("width", class_support
, var_uinteger
, &chars_per_line
,
2491 "Set number of characters gdb thinks are in a line.",
2493 deprecated_add_show_from_set (c
, &showlist
);
2494 set_cmd_sfunc (c
, set_width_command
);
2496 c
= add_set_cmd ("height", class_support
, var_uinteger
, &lines_per_page
,
2497 "Set number of lines gdb thinks are in a page.", &setlist
);
2498 deprecated_add_show_from_set (c
, &showlist
);
2499 set_cmd_sfunc (c
, set_height_command
);
2503 deprecated_add_show_from_set
2504 (add_set_cmd ("demangle", class_support
, var_boolean
,
2506 "Set demangling of encoded C++/ObjC names when displaying symbols.",
2507 &setprintlist
), &showprintlist
);
2509 deprecated_add_show_from_set
2510 (add_set_cmd ("pagination", class_support
,
2511 var_boolean
, (char *) &pagination_enabled
,
2512 "Set state of pagination.", &setlist
), &showlist
);
2516 add_com ("am", class_support
, pagination_on_command
,
2517 "Enable pagination");
2518 add_com ("sm", class_support
, pagination_off_command
,
2519 "Disable pagination");
2522 deprecated_add_show_from_set
2523 (add_set_cmd ("sevenbit-strings", class_support
, var_boolean
,
2524 (char *) &sevenbit_strings
,
2525 "Set printing of 8-bit characters in strings as \\nnn.",
2526 &setprintlist
), &showprintlist
);
2528 deprecated_add_show_from_set
2529 (add_set_cmd ("asm-demangle", class_support
, var_boolean
,
2530 (char *) &asm_demangle
,
2531 "Set demangling of C++/ObjC names in disassembly listings.",
2532 &setprintlist
), &showprintlist
);
2535 /* Machine specific function to handle SIGWINCH signal. */
2537 #ifdef SIGWINCH_HANDLER_BODY
2538 SIGWINCH_HANDLER_BODY
2540 /* print routines to handle variable size regs, etc. */
2541 /* temporary storage using circular buffer */
2547 static char buf
[NUMCELLS
][CELLSIZE
];
2548 static int cell
= 0;
2549 if (++cell
>= NUMCELLS
)
2557 return (TARGET_ADDR_BIT
/ 8 * 2);
2561 paddr (CORE_ADDR addr
)
2563 return phex (addr
, TARGET_ADDR_BIT
/ 8);
2567 paddr_nz (CORE_ADDR addr
)
2569 return phex_nz (addr
, TARGET_ADDR_BIT
/ 8);
2573 decimal2str (char *paddr_str
, char *sign
, ULONGEST addr
, int width
)
2575 /* steal code from valprint.c:print_decimal(). Should this worry
2576 about the real size of addr as the above does? */
2577 unsigned long temp
[3];
2581 temp
[i
] = addr
% (1000 * 1000 * 1000);
2582 addr
/= (1000 * 1000 * 1000);
2586 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2593 sprintf (paddr_str
, "%s%0*lu", sign
, width
, temp
[0]);
2596 sprintf (paddr_str
, "%s%0*lu%09lu", sign
, width
, temp
[1], temp
[0]);
2599 sprintf (paddr_str
, "%s%0*lu%09lu%09lu", sign
, width
,
2600 temp
[2], temp
[1], temp
[0]);
2603 internal_error (__FILE__
, __LINE__
,
2604 "failed internal consistency check");
2609 octal2str (char *paddr_str
, ULONGEST addr
, int width
)
2611 unsigned long temp
[3];
2615 temp
[i
] = addr
% (0100000 * 0100000);
2616 addr
/= (0100000 * 0100000);
2620 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2628 sprintf (paddr_str
, "%*o", width
, 0);
2630 sprintf (paddr_str
, "0%0*lo", width
, temp
[0]);
2633 sprintf (paddr_str
, "0%0*lo%010lo", width
, temp
[1], temp
[0]);
2636 sprintf (paddr_str
, "0%0*lo%010lo%010lo", width
,
2637 temp
[2], temp
[1], temp
[0]);
2640 internal_error (__FILE__
, __LINE__
,
2641 "failed internal consistency check");
2646 paddr_u (CORE_ADDR addr
)
2648 char *paddr_str
= get_cell ();
2649 decimal2str (paddr_str
, "", addr
, 0);
2654 paddr_d (LONGEST addr
)
2656 char *paddr_str
= get_cell ();
2658 decimal2str (paddr_str
, "-", -addr
, 0);
2660 decimal2str (paddr_str
, "", addr
, 0);
2664 /* eliminate warning from compiler on 32-bit systems */
2665 static int thirty_two
= 32;
2668 phex (ULONGEST l
, int sizeof_l
)
2675 sprintf (str
, "%08lx%08lx",
2676 (unsigned long) (l
>> thirty_two
),
2677 (unsigned long) (l
& 0xffffffff));
2681 sprintf (str
, "%08lx", (unsigned long) l
);
2685 sprintf (str
, "%04x", (unsigned short) (l
& 0xffff));
2688 str
= phex (l
, sizeof (l
));
2695 phex_nz (ULONGEST l
, int sizeof_l
)
2702 unsigned long high
= (unsigned long) (l
>> thirty_two
);
2705 sprintf (str
, "%lx", (unsigned long) (l
& 0xffffffff));
2707 sprintf (str
, "%lx%08lx", high
, (unsigned long) (l
& 0xffffffff));
2712 sprintf (str
, "%lx", (unsigned long) l
);
2716 sprintf (str
, "%x", (unsigned short) (l
& 0xffff));
2719 str
= phex_nz (l
, sizeof (l
));
2725 /* Converts a LONGEST to a C-format hexadecimal literal and stores it
2726 in a static string. Returns a pointer to this string. */
2728 hex_string (LONGEST num
)
2730 char *result
= get_cell ();
2731 snprintf (result
, CELLSIZE
, "0x%s", phex_nz (num
, sizeof (num
)));
2735 /* Converts a LONGEST number to a C-format hexadecimal literal and
2736 stores it in a static string. Returns a pointer to this string
2737 that is valid until the next call. The number is padded on the
2738 left with 0s to at least WIDTH characters. */
2740 hex_string_custom (LONGEST num
, int width
)
2742 char *result
= get_cell ();
2743 char *result_end
= result
+ CELLSIZE
- 1;
2744 const char *hex
= phex_nz (num
, sizeof (num
));
2745 int hex_len
= strlen (hex
);
2747 if (hex_len
> width
)
2749 if (width
+ 2 >= CELLSIZE
)
2750 internal_error (__FILE__
, __LINE__
,
2751 "hex_string_custom: insufficient space to store result");
2753 strcpy (result_end
- width
- 2, "0x");
2754 memset (result_end
- width
, '0', width
);
2755 strcpy (result_end
- hex_len
, hex
);
2756 return result_end
- width
- 2;
2759 /* Convert VAL to a numeral in the given radix. For
2760 * radix 10, IS_SIGNED may be true, indicating a signed quantity;
2761 * otherwise VAL is interpreted as unsigned. If WIDTH is supplied,
2762 * it is the minimum width (0-padded if needed). USE_C_FORMAT means
2763 * to use C format in all cases. If it is false, then 'x'
2764 * and 'o' formats do not include a prefix (0x or leading 0). */
2767 int_string (LONGEST val
, int radix
, int is_signed
, int width
,
2776 result
= hex_string (val
);
2778 result
= hex_string_custom (val
, width
);
2785 char *result
= get_cell ();
2786 if (is_signed
&& val
< 0)
2787 decimal2str (result
, "-", -val
, width
);
2789 decimal2str (result
, "", val
, width
);
2794 char *result
= get_cell ();
2795 octal2str (result
, val
, width
);
2796 if (use_c_format
|| val
== 0)
2802 internal_error (__FILE__
, __LINE__
,
2803 "failed internal consistency check");
2807 /* Convert a CORE_ADDR into a string. */
2809 core_addr_to_string (const CORE_ADDR addr
)
2811 char *str
= get_cell ();
2813 strcat (str
, phex (addr
, sizeof (addr
)));
2818 core_addr_to_string_nz (const CORE_ADDR addr
)
2820 char *str
= get_cell ();
2822 strcat (str
, phex_nz (addr
, sizeof (addr
)));
2826 /* Convert a string back into a CORE_ADDR. */
2828 string_to_core_addr (const char *my_string
)
2831 if (my_string
[0] == '0' && tolower (my_string
[1]) == 'x')
2833 /* Assume that it is in decimal. */
2835 for (i
= 2; my_string
[i
] != '\0'; i
++)
2837 if (isdigit (my_string
[i
]))
2838 addr
= (my_string
[i
] - '0') + (addr
* 16);
2839 else if (isxdigit (my_string
[i
]))
2840 addr
= (tolower (my_string
[i
]) - 'a' + 0xa) + (addr
* 16);
2842 internal_error (__FILE__
, __LINE__
, "invalid hex");
2847 /* Assume that it is in decimal. */
2849 for (i
= 0; my_string
[i
] != '\0'; i
++)
2851 if (isdigit (my_string
[i
]))
2852 addr
= (my_string
[i
] - '0') + (addr
* 10);
2854 internal_error (__FILE__
, __LINE__
, "invalid decimal");
2861 gdb_realpath (const char *filename
)
2863 /* Method 1: The system has a compile time upper bound on a filename
2864 path. Use that and realpath() to canonicalize the name. This is
2865 the most common case. Note that, if there isn't a compile time
2866 upper bound, you want to avoid realpath() at all costs. */
2867 #if defined(HAVE_REALPATH)
2869 # if defined (PATH_MAX)
2871 # define USE_REALPATH
2872 # elif defined (MAXPATHLEN)
2873 char buf
[MAXPATHLEN
];
2874 # define USE_REALPATH
2876 # if defined (USE_REALPATH)
2877 const char *rp
= realpath (filename
, buf
);
2880 return xstrdup (rp
);
2883 #endif /* HAVE_REALPATH */
2885 /* Method 2: The host system (i.e., GNU) has the function
2886 canonicalize_file_name() which malloc's a chunk of memory and
2887 returns that, use that. */
2888 #if defined(HAVE_CANONICALIZE_FILE_NAME)
2890 char *rp
= canonicalize_file_name (filename
);
2892 return xstrdup (filename
);
2898 /* FIXME: cagney/2002-11-13:
2900 Method 2a: Use realpath() with a NULL buffer. Some systems, due
2901 to the problems described in in method 3, have modified their
2902 realpath() implementation so that it will allocate a buffer when
2903 NULL is passed in. Before this can be used, though, some sort of
2904 configure time test would need to be added. Otherwize the code
2905 will likely core dump. */
2907 /* Method 3: Now we're getting desperate! The system doesn't have a
2908 compile time buffer size and no alternative function. Query the
2909 OS, using pathconf(), for the buffer limit. Care is needed
2910 though, some systems do not limit PATH_MAX (return -1 for
2911 pathconf()) making it impossible to pass a correctly sized buffer
2912 to realpath() (it could always overflow). On those systems, we
2914 #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
2916 /* Find out the max path size. */
2917 long path_max
= pathconf ("/", _PC_PATH_MAX
);
2920 /* PATH_MAX is bounded. */
2921 char *buf
= alloca (path_max
);
2922 char *rp
= realpath (filename
, buf
);
2923 return xstrdup (rp
? rp
: filename
);
2928 /* This system is a lost cause, just dup the buffer. */
2929 return xstrdup (filename
);
2932 /* Return a copy of FILENAME, with its directory prefix canonicalized
2936 xfullpath (const char *filename
)
2938 const char *base_name
= lbasename (filename
);
2943 /* Extract the basename of filename, and return immediately
2944 a copy of filename if it does not contain any directory prefix. */
2945 if (base_name
== filename
)
2946 return xstrdup (filename
);
2948 dir_name
= alloca ((size_t) (base_name
- filename
+ 2));
2949 /* Allocate enough space to store the dir_name + plus one extra
2950 character sometimes needed under Windows (see below), and
2951 then the closing \000 character */
2952 strncpy (dir_name
, filename
, base_name
- filename
);
2953 dir_name
[base_name
- filename
] = '\000';
2955 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2956 /* We need to be careful when filename is of the form 'd:foo', which
2957 is equivalent of d:./foo, which is totally different from d:/foo. */
2958 if (strlen (dir_name
) == 2 && isalpha (dir_name
[0]) && dir_name
[1] == ':')
2961 dir_name
[3] = '\000';
2965 /* Canonicalize the directory prefix, and build the resulting
2966 filename. If the dirname realpath already contains an ending
2967 directory separator, avoid doubling it. */
2968 real_path
= gdb_realpath (dir_name
);
2969 if (IS_DIR_SEPARATOR (real_path
[strlen (real_path
) - 1]))
2970 result
= concat (real_path
, base_name
, NULL
);
2972 result
= concat (real_path
, SLASH_STRING
, base_name
, NULL
);
2979 /* This is the 32-bit CRC function used by the GNU separate debug
2980 facility. An executable may contain a section named
2981 .gnu_debuglink, which holds the name of a separate executable file
2982 containing its debug info, and a checksum of that file's contents,
2983 computed using this function. */
2985 gnu_debuglink_crc32 (unsigned long crc
, unsigned char *buf
, size_t len
)
2987 static const unsigned long crc32_table
[256] = {
2988 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
2989 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
2990 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
2991 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
2992 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
2993 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
2994 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
2995 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
2996 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
2997 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
2998 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
2999 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
3000 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
3001 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
3002 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
3003 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
3004 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
3005 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
3006 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
3007 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
3008 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
3009 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
3010 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
3011 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
3012 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
3013 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
3014 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
3015 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
3016 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
3017 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
3018 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
3019 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
3020 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
3021 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
3022 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
3023 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
3024 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
3025 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
3026 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
3027 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
3028 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
3029 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
3030 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
3031 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
3032 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
3033 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
3034 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
3035 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
3036 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
3037 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
3038 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
3043 crc
= ~crc
& 0xffffffff;
3044 for (end
= buf
+ len
; buf
< end
; ++buf
)
3045 crc
= crc32_table
[(crc
^ *buf
) & 0xff] ^ (crc
>> 8);
3046 return ~crc
& 0xffffffff;;
3050 align_up (ULONGEST v
, int n
)
3052 /* Check that N is really a power of two. */
3053 gdb_assert (n
&& (n
& (n
-1)) == 0);
3054 return (v
+ n
- 1) & -n
;
3058 align_down (ULONGEST v
, int n
)
3060 /* Check that N is really a power of two. */
3061 gdb_assert (n
&& (n
& (n
-1)) == 0);