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 Free Software
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"
34 /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */
45 #include "expression.h"
49 #include "filenames.h"
51 #include "inferior.h" /* for signed_pointer_to_address */
53 #include <sys/param.h> /* For MAXPATHLEN */
62 #include <readline/readline.h>
68 #ifdef NEED_DECLARATION_MALLOC
69 extern PTR
malloc (); /* OK: PTR */
71 #ifdef NEED_DECLARATION_REALLOC
72 extern PTR
realloc (); /* OK: PTR */
74 #ifdef NEED_DECLARATION_FREE
77 /* Actually, we'll never have the decl, since we don't define _GNU_SOURCE. */
78 #if defined(HAVE_CANONICALIZE_FILE_NAME) \
79 && defined(NEED_DECLARATION_CANONICALIZE_FILE_NAME)
80 extern char *canonicalize_file_name (const char *);
83 /* readline defines this. */
86 void (*error_begin_hook
) (void);
88 /* Holds the last error message issued by gdb */
90 static struct ui_file
*gdb_lasterr
;
92 /* Prototypes for local functions */
94 static void vfprintf_maybe_filtered (struct ui_file
*, const char *,
97 static void fputs_maybe_filtered (const char *, struct ui_file
*, int);
99 static void do_my_cleanups (struct cleanup
**, struct cleanup
*);
101 #if defined (USE_MMALLOC) && !defined (NO_MMCHECK)
102 static void malloc_botch (void);
105 static void prompt_for_continue (void);
107 static void set_screen_size (void);
108 static void set_width (void);
110 /* Chain of cleanup actions established with make_cleanup,
111 to be executed if an error happens. */
113 static struct cleanup
*cleanup_chain
; /* cleaned up after a failed command */
114 static struct cleanup
*final_cleanup_chain
; /* cleaned up when gdb exits */
115 static struct cleanup
*run_cleanup_chain
; /* cleaned up on each 'run' */
116 static struct cleanup
*exec_cleanup_chain
; /* cleaned up on each execution command */
117 /* cleaned up on each error from within an execution command */
118 static struct cleanup
*exec_error_cleanup_chain
;
120 /* Pointer to what is left to do for an execution command after the
121 target stops. Used only in asynchronous mode, by targets that
122 support async execution. The finish and until commands use it. So
123 does the target extended-remote command. */
124 struct continuation
*cmd_continuation
;
125 struct continuation
*intermediate_continuation
;
127 /* Nonzero if we have job control. */
131 /* Nonzero means a quit has been requested. */
135 /* Nonzero means quit immediately if Control-C is typed now, rather
136 than waiting until QUIT is executed. Be careful in setting this;
137 code which executes with immediate_quit set has to be very careful
138 about being able to deal with being interrupted at any time. It is
139 almost always better to use QUIT; the only exception I can think of
140 is being able to quit out of a system call (using EINTR loses if
141 the SIGINT happens between the previous QUIT and the system call).
142 To immediately quit in the case in which a SIGINT happens between
143 the previous QUIT and setting immediate_quit (desirable anytime we
144 expect to block), call QUIT after setting immediate_quit. */
148 /* Nonzero means that encoded C++/ObjC names should be printed out in their
149 C++/ObjC form rather than raw. */
153 /* Nonzero means that encoded C++/ObjC names should be printed out in their
154 C++/ObjC form even in assembler language displays. If this is set, but
155 DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */
157 int asm_demangle
= 0;
159 /* Nonzero means that strings with character values >0x7F should be printed
160 as octal escapes. Zero means just print the value (e.g. it's an
161 international character, and the terminal or window can cope.) */
163 int sevenbit_strings
= 0;
165 /* String to be printed before error messages, if any. */
167 char *error_pre_print
;
169 /* String to be printed before quit messages, if any. */
171 char *quit_pre_print
;
173 /* String to be printed before warning messages, if any. */
175 char *warning_pre_print
= "\nwarning: ";
177 int pagination_enabled
= 1;
180 /* Add a new cleanup to the cleanup_chain,
181 and return the previous chain pointer
182 to be passed later to do_cleanups or discard_cleanups.
183 Args are FUNCTION to clean up with, and ARG to pass to it. */
186 make_cleanup (make_cleanup_ftype
*function
, void *arg
)
188 return make_my_cleanup (&cleanup_chain
, function
, arg
);
192 make_final_cleanup (make_cleanup_ftype
*function
, void *arg
)
194 return make_my_cleanup (&final_cleanup_chain
, function
, arg
);
198 make_run_cleanup (make_cleanup_ftype
*function
, void *arg
)
200 return make_my_cleanup (&run_cleanup_chain
, function
, arg
);
204 make_exec_cleanup (make_cleanup_ftype
*function
, void *arg
)
206 return make_my_cleanup (&exec_cleanup_chain
, function
, arg
);
210 make_exec_error_cleanup (make_cleanup_ftype
*function
, void *arg
)
212 return make_my_cleanup (&exec_error_cleanup_chain
, function
, arg
);
216 do_freeargv (void *arg
)
218 freeargv ((char **) arg
);
222 make_cleanup_freeargv (char **arg
)
224 return make_my_cleanup (&cleanup_chain
, do_freeargv
, arg
);
228 do_bfd_close_cleanup (void *arg
)
234 make_cleanup_bfd_close (bfd
*abfd
)
236 return make_cleanup (do_bfd_close_cleanup
, abfd
);
240 do_close_cleanup (void *arg
)
248 make_cleanup_close (int fd
)
250 int *saved_fd
= xmalloc (sizeof (fd
));
252 return make_cleanup (do_close_cleanup
, saved_fd
);
256 do_ui_file_delete (void *arg
)
258 ui_file_delete (arg
);
262 make_cleanup_ui_file_delete (struct ui_file
*arg
)
264 return make_my_cleanup (&cleanup_chain
, do_ui_file_delete
, arg
);
268 make_my_cleanup (struct cleanup
**pmy_chain
, make_cleanup_ftype
*function
,
272 = (struct cleanup
*) xmalloc (sizeof (struct cleanup
));
273 struct cleanup
*old_chain
= *pmy_chain
;
275 new->next
= *pmy_chain
;
276 new->function
= function
;
283 /* Discard cleanups and do the actions they describe
284 until we get back to the point OLD_CHAIN in the cleanup_chain. */
287 do_cleanups (struct cleanup
*old_chain
)
289 do_my_cleanups (&cleanup_chain
, old_chain
);
293 do_final_cleanups (struct cleanup
*old_chain
)
295 do_my_cleanups (&final_cleanup_chain
, old_chain
);
299 do_run_cleanups (struct cleanup
*old_chain
)
301 do_my_cleanups (&run_cleanup_chain
, old_chain
);
305 do_exec_cleanups (struct cleanup
*old_chain
)
307 do_my_cleanups (&exec_cleanup_chain
, old_chain
);
311 do_exec_error_cleanups (struct cleanup
*old_chain
)
313 do_my_cleanups (&exec_error_cleanup_chain
, old_chain
);
317 do_my_cleanups (struct cleanup
**pmy_chain
,
318 struct cleanup
*old_chain
)
321 while ((ptr
= *pmy_chain
) != old_chain
)
323 *pmy_chain
= ptr
->next
; /* Do this first incase recursion */
324 (*ptr
->function
) (ptr
->arg
);
329 /* Discard cleanups, not doing the actions they describe,
330 until we get back to the point OLD_CHAIN in the cleanup_chain. */
333 discard_cleanups (struct cleanup
*old_chain
)
335 discard_my_cleanups (&cleanup_chain
, old_chain
);
339 discard_final_cleanups (struct cleanup
*old_chain
)
341 discard_my_cleanups (&final_cleanup_chain
, old_chain
);
345 discard_exec_error_cleanups (struct cleanup
*old_chain
)
347 discard_my_cleanups (&exec_error_cleanup_chain
, old_chain
);
351 discard_my_cleanups (struct cleanup
**pmy_chain
,
352 struct cleanup
*old_chain
)
355 while ((ptr
= *pmy_chain
) != old_chain
)
357 *pmy_chain
= ptr
->next
;
362 /* Set the cleanup_chain to 0, and return the old cleanup chain. */
366 return save_my_cleanups (&cleanup_chain
);
370 save_final_cleanups (void)
372 return save_my_cleanups (&final_cleanup_chain
);
376 save_my_cleanups (struct cleanup
**pmy_chain
)
378 struct cleanup
*old_chain
= *pmy_chain
;
384 /* Restore the cleanup chain from a previously saved chain. */
386 restore_cleanups (struct cleanup
*chain
)
388 restore_my_cleanups (&cleanup_chain
, chain
);
392 restore_final_cleanups (struct cleanup
*chain
)
394 restore_my_cleanups (&final_cleanup_chain
, chain
);
398 restore_my_cleanups (struct cleanup
**pmy_chain
, struct cleanup
*chain
)
403 /* This function is useful for cleanups.
407 old_chain = make_cleanup (free_current_contents, &foo);
409 to arrange to free the object thus allocated. */
412 free_current_contents (void *ptr
)
414 void **location
= ptr
;
415 if (location
== NULL
)
416 internal_error (__FILE__
, __LINE__
,
417 "free_current_contents: NULL pointer");
418 if (*location
!= NULL
)
425 /* Provide a known function that does nothing, to use as a base for
426 for a possibly long chain of cleanups. This is useful where we
427 use the cleanup chain for handling normal cleanups as well as dealing
428 with cleanups that need to be done as a result of a call to error().
429 In such cases, we may not be certain where the first cleanup is, unless
430 we have a do-nothing one to always use as the base. */
433 null_cleanup (void *arg
)
437 /* Add a continuation to the continuation list, the global list
438 cmd_continuation. The new continuation will be added at the front.*/
440 add_continuation (void (*continuation_hook
) (struct continuation_arg
*),
441 struct continuation_arg
*arg_list
)
443 struct continuation
*continuation_ptr
;
446 (struct continuation
*) xmalloc (sizeof (struct continuation
));
447 continuation_ptr
->continuation_hook
= continuation_hook
;
448 continuation_ptr
->arg_list
= arg_list
;
449 continuation_ptr
->next
= cmd_continuation
;
450 cmd_continuation
= continuation_ptr
;
453 /* Walk down the cmd_continuation list, and execute all the
454 continuations. There is a problem though. In some cases new
455 continuations may be added while we are in the middle of this
456 loop. If this happens they will be added in the front, and done
457 before we have a chance of exhausting those that were already
458 there. We need to then save the beginning of the list in a pointer
459 and do the continuations from there on, instead of using the
460 global beginning of list as our iteration pointer.*/
462 do_all_continuations (void)
464 struct continuation
*continuation_ptr
;
465 struct continuation
*saved_continuation
;
467 /* Copy the list header into another pointer, and set the global
468 list header to null, so that the global list can change as a side
469 effect of invoking the continuations and the processing of
470 the preexisting continuations will not be affected. */
471 continuation_ptr
= cmd_continuation
;
472 cmd_continuation
= NULL
;
474 /* Work now on the list we have set aside. */
475 while (continuation_ptr
)
477 (continuation_ptr
->continuation_hook
) (continuation_ptr
->arg_list
);
478 saved_continuation
= continuation_ptr
;
479 continuation_ptr
= continuation_ptr
->next
;
480 xfree (saved_continuation
);
484 /* Walk down the cmd_continuation list, and get rid of all the
487 discard_all_continuations (void)
489 struct continuation
*continuation_ptr
;
491 while (cmd_continuation
)
493 continuation_ptr
= cmd_continuation
;
494 cmd_continuation
= continuation_ptr
->next
;
495 xfree (continuation_ptr
);
499 /* Add a continuation to the continuation list, the global list
500 intermediate_continuation. The new continuation will be added at the front.*/
502 add_intermediate_continuation (void (*continuation_hook
)
503 (struct continuation_arg
*),
504 struct continuation_arg
*arg_list
)
506 struct continuation
*continuation_ptr
;
509 (struct continuation
*) xmalloc (sizeof (struct continuation
));
510 continuation_ptr
->continuation_hook
= continuation_hook
;
511 continuation_ptr
->arg_list
= arg_list
;
512 continuation_ptr
->next
= intermediate_continuation
;
513 intermediate_continuation
= continuation_ptr
;
516 /* Walk down the cmd_continuation list, and execute all the
517 continuations. There is a problem though. In some cases new
518 continuations may be added while we are in the middle of this
519 loop. If this happens they will be added in the front, and done
520 before we have a chance of exhausting those that were already
521 there. We need to then save the beginning of the list in a pointer
522 and do the continuations from there on, instead of using the
523 global beginning of list as our iteration pointer.*/
525 do_all_intermediate_continuations (void)
527 struct continuation
*continuation_ptr
;
528 struct continuation
*saved_continuation
;
530 /* Copy the list header into another pointer, and set the global
531 list header to null, so that the global list can change as a side
532 effect of invoking the continuations and the processing of
533 the preexisting continuations will not be affected. */
534 continuation_ptr
= intermediate_continuation
;
535 intermediate_continuation
= NULL
;
537 /* Work now on the list we have set aside. */
538 while (continuation_ptr
)
540 (continuation_ptr
->continuation_hook
) (continuation_ptr
->arg_list
);
541 saved_continuation
= continuation_ptr
;
542 continuation_ptr
= continuation_ptr
->next
;
543 xfree (saved_continuation
);
547 /* Walk down the cmd_continuation list, and get rid of all the
550 discard_all_intermediate_continuations (void)
552 struct continuation
*continuation_ptr
;
554 while (intermediate_continuation
)
556 continuation_ptr
= intermediate_continuation
;
557 intermediate_continuation
= continuation_ptr
->next
;
558 xfree (continuation_ptr
);
564 /* Print a warning message. The first argument STRING is the warning
565 message, used as an fprintf format string, the second is the
566 va_list of arguments for that string. A warning is unfiltered (not
567 paginated) so that the user does not need to page through each
568 screen full of warnings when there are lots of them. */
571 vwarning (const char *string
, va_list args
)
574 (*warning_hook
) (string
, args
);
577 target_terminal_ours ();
578 wrap_here (""); /* Force out any buffered output */
579 gdb_flush (gdb_stdout
);
580 if (warning_pre_print
)
581 fputs_unfiltered (warning_pre_print
, gdb_stderr
);
582 vfprintf_unfiltered (gdb_stderr
, string
, args
);
583 fprintf_unfiltered (gdb_stderr
, "\n");
588 /* Print a warning message.
589 The first argument STRING is the warning message, used as a fprintf string,
590 and the remaining args are passed as arguments to it.
591 The primary difference between warnings and errors is that a warning
592 does not force the return to command level. */
595 warning (const char *string
, ...)
598 va_start (args
, string
);
599 vwarning (string
, args
);
603 /* Print an error message and return to command level.
604 The first argument STRING is the error message, used as a fprintf string,
605 and the remaining args are passed as arguments to it. */
608 verror (const char *string
, va_list args
)
610 struct ui_file
*tmp_stream
= mem_fileopen ();
611 make_cleanup_ui_file_delete (tmp_stream
);
612 vfprintf_unfiltered (tmp_stream
, string
, args
);
613 error_stream (tmp_stream
);
617 error (const char *string
, ...)
620 va_start (args
, string
);
621 verror (string
, args
);
626 do_write (void *data
, const char *buffer
, long length_buffer
)
628 ui_file_write (data
, buffer
, length_buffer
);
631 /* Cause a silent error to occur. Any error message is recorded
632 though it is not issued. */
634 error_silent (const char *string
, ...)
637 struct ui_file
*tmp_stream
= mem_fileopen ();
638 va_start (args
, string
);
639 make_cleanup_ui_file_delete (tmp_stream
);
640 vfprintf_unfiltered (tmp_stream
, string
, args
);
641 /* Copy the stream into the GDB_LASTERR buffer. */
642 ui_file_rewind (gdb_lasterr
);
643 ui_file_put (tmp_stream
, do_write
, gdb_lasterr
);
646 throw_exception (RETURN_ERROR
);
649 /* Output an error message including any pre-print text to gdb_stderr. */
651 error_output_message (char *pre_print
, char *msg
)
653 target_terminal_ours ();
654 wrap_here (""); /* Force out any buffered output */
655 gdb_flush (gdb_stdout
);
656 annotate_error_begin ();
658 fputs_filtered (pre_print
, gdb_stderr
);
659 fputs_filtered (msg
, gdb_stderr
);
660 fprintf_filtered (gdb_stderr
, "\n");
664 error_stream (struct ui_file
*stream
)
666 if (error_begin_hook
)
669 /* Copy the stream into the GDB_LASTERR buffer. */
670 ui_file_rewind (gdb_lasterr
);
671 ui_file_put (stream
, do_write
, gdb_lasterr
);
673 /* Write the message plus any error_pre_print to gdb_stderr. */
674 target_terminal_ours ();
675 wrap_here (""); /* Force out any buffered output */
676 gdb_flush (gdb_stdout
);
677 annotate_error_begin ();
679 fputs_filtered (error_pre_print
, gdb_stderr
);
680 ui_file_put (stream
, do_write
, gdb_stderr
);
681 fprintf_filtered (gdb_stderr
, "\n");
683 throw_exception (RETURN_ERROR
);
686 /* Get the last error message issued by gdb */
689 error_last_message (void)
692 return ui_file_xstrdup (gdb_lasterr
, &len
);
695 /* This is to be called by main() at the very beginning */
700 gdb_lasterr
= mem_fileopen ();
703 /* Print a message reporting an internal error/warning. Ask the user
704 if they want to continue, dump core, or just exit. Return
705 something to indicate a quit. */
707 struct internal_problem
710 /* FIXME: cagney/2002-08-15: There should be ``maint set/show''
711 commands available for controlling these variables. */
712 enum auto_boolean should_quit
;
713 enum auto_boolean should_dump_core
;
716 /* Report a problem, internal to GDB, to the user. Once the problem
717 has been reported, and assuming GDB didn't quit, the caller can
718 either allow execution to resume or throw an error. */
721 internal_vproblem (struct internal_problem
*problem
,
722 const char *file
, int line
, const char *fmt
, va_list ap
)
729 /* Don't allow infinite error/warning recursion. */
731 static char msg
[] = "Recursive internal problem.\n";
739 fputs_unfiltered (msg
, gdb_stderr
);
740 abort (); /* NOTE: GDB has only three calls to abort(). */
743 write (STDERR_FILENO
, msg
, sizeof (msg
));
748 /* Try to get the message out and at the start of a new line. */
749 target_terminal_ours ();
752 /* Create a string containing the full error/warning message. Need
753 to call query with this full string, as otherwize the reason
754 (error/warning) and question become separated. Format using a
755 style similar to a compiler error message. Include extra detail
756 so that the user knows that they are living on the edge. */
759 xvasprintf (&msg
, fmt
, ap
);
760 xasprintf (&reason
, "\
762 A problem internal to GDB has been detected,\n\
763 further debugging may prove unreliable.", file
, line
, problem
->name
, msg
);
765 make_cleanup (xfree
, reason
);
768 switch (problem
->should_quit
)
770 case AUTO_BOOLEAN_AUTO
:
771 /* Default (yes/batch case) is to quit GDB. When in batch mode
772 this lessens the likelhood of GDB going into an infinate
774 quit_p
= query ("%s\nQuit this debugging session? ", reason
);
776 case AUTO_BOOLEAN_TRUE
:
779 case AUTO_BOOLEAN_FALSE
:
783 internal_error (__FILE__
, __LINE__
, "bad switch");
786 switch (problem
->should_dump_core
)
788 case AUTO_BOOLEAN_AUTO
:
789 /* Default (yes/batch case) is to dump core. This leaves a GDB
790 `dropping' so that it is easier to see that something went
792 dump_core_p
= query ("%s\nCreate a core file of GDB? ", reason
);
795 case AUTO_BOOLEAN_TRUE
:
798 case AUTO_BOOLEAN_FALSE
:
802 internal_error (__FILE__
, __LINE__
, "bad switch");
808 abort (); /* NOTE: GDB has only three calls to abort(). */
817 abort (); /* NOTE: GDB has only three calls to abort(). */
824 static struct internal_problem internal_error_problem
= {
825 "internal-error", AUTO_BOOLEAN_AUTO
, AUTO_BOOLEAN_AUTO
829 internal_verror (const char *file
, int line
, const char *fmt
, va_list ap
)
831 internal_vproblem (&internal_error_problem
, file
, line
, fmt
, ap
);
832 throw_exception (RETURN_ERROR
);
836 internal_error (const char *file
, int line
, const char *string
, ...)
839 va_start (ap
, string
);
840 internal_verror (file
, line
, string
, ap
);
844 static struct internal_problem internal_warning_problem
= {
845 "internal-error", AUTO_BOOLEAN_AUTO
, AUTO_BOOLEAN_AUTO
849 internal_vwarning (const char *file
, int line
, const char *fmt
, va_list ap
)
851 internal_vproblem (&internal_warning_problem
, file
, line
, fmt
, ap
);
855 internal_warning (const char *file
, int line
, const char *string
, ...)
858 va_start (ap
, string
);
859 internal_vwarning (file
, line
, string
, ap
);
863 /* The strerror() function can return NULL for errno values that are
864 out of range. Provide a "safe" version that always returns a
868 safe_strerror (int errnum
)
873 msg
= strerror (errnum
);
876 sprintf (buf
, "(undocumented errno %d)", errnum
);
882 /* Print the system error message for errno, and also mention STRING
883 as the file name for which the error was encountered.
884 Then return to command level. */
887 perror_with_name (const char *string
)
892 err
= safe_strerror (errno
);
893 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
894 strcpy (combined
, string
);
895 strcat (combined
, ": ");
896 strcat (combined
, err
);
898 /* I understand setting these is a matter of taste. Still, some people
899 may clear errno but not know about bfd_error. Doing this here is not
901 bfd_set_error (bfd_error_no_error
);
904 error ("%s.", combined
);
907 /* Print the system error message for ERRCODE, and also mention STRING
908 as the file name for which the error was encountered. */
911 print_sys_errmsg (const char *string
, int errcode
)
916 err
= safe_strerror (errcode
);
917 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
918 strcpy (combined
, string
);
919 strcat (combined
, ": ");
920 strcat (combined
, err
);
922 /* We want anything which was printed on stdout to come out first, before
924 gdb_flush (gdb_stdout
);
925 fprintf_unfiltered (gdb_stderr
, "%s.\n", combined
);
928 /* Control C eventually causes this to be called, at a convenient time. */
933 struct serial
*gdb_stdout_serial
= serial_fdopen (1);
935 target_terminal_ours ();
937 /* We want all output to appear now, before we print "Quit". We
938 have 3 levels of buffering we have to flush (it's possible that
939 some of these should be changed to flush the lower-level ones
942 /* 1. The _filtered buffer. */
943 wrap_here ((char *) 0);
945 /* 2. The stdio buffer. */
946 gdb_flush (gdb_stdout
);
947 gdb_flush (gdb_stderr
);
949 /* 3. The system-level buffer. */
950 serial_drain_output (gdb_stdout_serial
);
951 serial_un_fdopen (gdb_stdout_serial
);
953 annotate_error_begin ();
955 /* Don't use *_filtered; we don't want to prompt the user to continue. */
957 fputs_unfiltered (quit_pre_print
, gdb_stderr
);
960 /* No steenking SIGINT will ever be coming our way when the
961 program is resumed. Don't lie. */
962 fprintf_unfiltered (gdb_stderr
, "Quit\n");
965 /* If there is no terminal switching for this target, then we can't
966 possibly get screwed by the lack of job control. */
967 || current_target
.to_terminal_ours
== NULL
)
968 fprintf_unfiltered (gdb_stderr
, "Quit\n");
970 fprintf_unfiltered (gdb_stderr
,
971 "Quit (expect signal SIGINT when the program is resumed)\n");
973 throw_exception (RETURN_QUIT
);
976 /* Control C comes here */
978 request_quit (int signo
)
981 /* Restore the signal handler. Harmless with BSD-style signals, needed
982 for System V-style signals. So just always do it, rather than worrying
983 about USG defines and stuff like that. */
984 signal (signo
, request_quit
);
994 /* Memory management stuff (malloc friends). */
996 #if !defined (USE_MMALLOC)
999 mmalloc (void *md
, size_t size
)
1001 return malloc (size
); /* NOTE: GDB's only call to malloc() */
1005 mrealloc (void *md
, void *ptr
, size_t size
)
1007 if (ptr
== 0) /* Guard against old realloc's */
1008 return mmalloc (md
, size
);
1010 return realloc (ptr
, size
); /* NOTE: GDB's only call to ralloc() */
1014 mcalloc (void *md
, size_t number
, size_t size
)
1016 return calloc (number
, size
); /* NOTE: GDB's only call to calloc() */
1020 mfree (void *md
, void *ptr
)
1022 free (ptr
); /* NOTE: GDB's only call to free() */
1025 #endif /* USE_MMALLOC */
1027 #if !defined (USE_MMALLOC) || defined (NO_MMCHECK)
1030 init_malloc (void *md
)
1034 #else /* Have mmalloc and want corruption checking */
1039 fprintf_unfiltered (gdb_stderr
, "Memory corruption\n");
1040 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
1043 /* Attempt to install hooks in mmalloc/mrealloc/mfree for the heap specified
1044 by MD, to detect memory corruption. Note that MD may be NULL to specify
1045 the default heap that grows via sbrk.
1047 Note that for freshly created regions, we must call mmcheckf prior to any
1048 mallocs in the region. Otherwise, any region which was allocated prior to
1049 installing the checking hooks, which is later reallocated or freed, will
1050 fail the checks! The mmcheck function only allows initial hooks to be
1051 installed before the first mmalloc. However, anytime after we have called
1052 mmcheck the first time to install the checking hooks, we can call it again
1053 to update the function pointer to the memory corruption handler.
1055 Returns zero on failure, non-zero on success. */
1057 #ifndef MMCHECK_FORCE
1058 #define MMCHECK_FORCE 0
1062 init_malloc (void *md
)
1064 if (!mmcheckf (md
, malloc_botch
, MMCHECK_FORCE
))
1066 /* Don't use warning(), which relies on current_target being set
1067 to something other than dummy_target, until after
1068 initialize_all_files(). */
1072 "warning: failed to install memory consistency checks; ");
1073 fprintf_unfiltered (gdb_stderr
,
1074 "configuration should define NO_MMCHECK or MMCHECK_FORCE\n");
1080 #endif /* Have mmalloc and want corruption checking */
1082 /* Called when a memory allocation fails, with the number of bytes of
1083 memory requested in SIZE. */
1090 internal_error (__FILE__
, __LINE__
,
1091 "virtual memory exhausted: can't allocate %ld bytes.",
1096 internal_error (__FILE__
, __LINE__
, "virtual memory exhausted.");
1100 /* The xmmalloc() family of memory management routines.
1102 These are are like the mmalloc() family except that they implement
1103 consistent semantics and guard against typical memory management
1104 problems: if a malloc fails, an internal error is thrown; if
1105 free(NULL) is called, it is ignored; if *alloc(0) is called, NULL
1108 All these routines are implemented using the mmalloc() family. */
1111 xmmalloc (void *md
, size_t size
)
1115 /* See libiberty/xmalloc.c. This function need's to match that's
1116 semantics. It never returns NULL. */
1120 val
= mmalloc (md
, size
);
1128 xmrealloc (void *md
, void *ptr
, size_t size
)
1132 /* See libiberty/xmalloc.c. This function need's to match that's
1133 semantics. It never returns NULL. */
1138 val
= mrealloc (md
, ptr
, size
);
1140 val
= mmalloc (md
, size
);
1148 xmcalloc (void *md
, size_t number
, size_t size
)
1152 /* See libiberty/xmalloc.c. This function need's to match that's
1153 semantics. It never returns NULL. */
1154 if (number
== 0 || size
== 0)
1160 mem
= mcalloc (md
, number
, size
);
1162 nomem (number
* size
);
1168 xmfree (void *md
, void *ptr
)
1174 /* The xmalloc() (libiberty.h) family of memory management routines.
1176 These are like the ISO-C malloc() family except that they implement
1177 consistent semantics and guard against typical memory management
1178 problems. See xmmalloc() above for further information.
1180 All these routines are wrappers to the xmmalloc() family. */
1182 /* NOTE: These are declared using PTR to ensure consistency with
1183 "libiberty.h". xfree() is GDB local. */
1186 xmalloc (size_t size
)
1188 return xmmalloc (NULL
, size
);
1192 xrealloc (PTR ptr
, size_t size
) /* OK: PTR */
1194 return xmrealloc (NULL
, ptr
, size
);
1198 xcalloc (size_t number
, size_t size
)
1200 return xmcalloc (NULL
, number
, size
);
1210 /* Like asprintf/vasprintf but get an internal_error if the call
1214 xstrprintf (const char *format
, ...)
1218 va_start (args
, format
);
1219 xvasprintf (&ret
, format
, args
);
1225 xasprintf (char **ret
, const char *format
, ...)
1228 va_start (args
, format
);
1229 xvasprintf (ret
, format
, args
);
1234 xvasprintf (char **ret
, const char *format
, va_list ap
)
1236 int status
= vasprintf (ret
, format
, ap
);
1237 /* NULL could be returned due to a memory allocation problem; a
1238 badly format string; or something else. */
1240 internal_error (__FILE__
, __LINE__
,
1241 "vasprintf returned NULL buffer (errno %d)", errno
);
1242 /* A negative status with a non-NULL buffer shouldn't never
1243 happen. But to be sure. */
1245 internal_error (__FILE__
, __LINE__
,
1246 "vasprintf call failed (errno %d)", errno
);
1250 /* My replacement for the read system call.
1251 Used like `read' but keeps going if `read' returns too soon. */
1254 myread (int desc
, char *addr
, int len
)
1261 val
= read (desc
, addr
, len
);
1265 return orglen
- len
;
1272 /* Make a copy of the string at PTR with SIZE characters
1273 (and add a null character at the end in the copy).
1274 Uses malloc to get the space. Returns the address of the copy. */
1277 savestring (const char *ptr
, size_t size
)
1279 char *p
= (char *) xmalloc (size
+ 1);
1280 memcpy (p
, ptr
, size
);
1286 msavestring (void *md
, const char *ptr
, size_t size
)
1288 char *p
= (char *) xmmalloc (md
, size
+ 1);
1289 memcpy (p
, ptr
, size
);
1295 mstrsave (void *md
, const char *ptr
)
1297 return (msavestring (md
, ptr
, strlen (ptr
)));
1301 print_spaces (int n
, struct ui_file
*file
)
1303 fputs_unfiltered (n_spaces (n
), file
);
1306 /* Print a host address. */
1309 gdb_print_host_address (const void *addr
, struct ui_file
*stream
)
1312 /* We could use the %p conversion specifier to fprintf if we had any
1313 way of knowing whether this host supports it. But the following
1314 should work on the Alpha and on 32 bit machines. */
1316 fprintf_filtered (stream
, "0x%lx", (unsigned long) addr
);
1319 /* Ask user a y-or-n question and return 1 iff answer is yes.
1320 Takes three args which are given to printf to print the question.
1321 The first, a control string, should end in "? ".
1322 It should not say how to answer, because we do that. */
1326 query (const char *ctlstr
, ...)
1333 va_start (args
, ctlstr
);
1337 return query_hook (ctlstr
, args
);
1340 /* Automatically answer "yes" if input is not from a terminal. */
1341 if (!input_from_terminal_p ())
1346 wrap_here (""); /* Flush any buffered output */
1347 gdb_flush (gdb_stdout
);
1349 if (annotation_level
> 1)
1350 printf_filtered ("\n\032\032pre-query\n");
1352 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1353 printf_filtered ("(y or n) ");
1355 if (annotation_level
> 1)
1356 printf_filtered ("\n\032\032query\n");
1359 gdb_flush (gdb_stdout
);
1361 answer
= fgetc (stdin
);
1362 clearerr (stdin
); /* in case of C-d */
1363 if (answer
== EOF
) /* C-d */
1368 /* Eat rest of input line, to EOF or newline */
1372 ans2
= fgetc (stdin
);
1375 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1389 printf_filtered ("Please answer y or n.\n");
1392 if (annotation_level
> 1)
1393 printf_filtered ("\n\032\032post-query\n");
1398 /* Print an error message saying that we couldn't make sense of a
1399 \^mumble sequence in a string or character constant. START and END
1400 indicate a substring of some larger string that contains the
1401 erroneous backslash sequence, missing the initial backslash. */
1403 no_control_char_error (const char *start
, const char *end
)
1405 int len
= end
- start
;
1406 char *copy
= alloca (end
- start
+ 1);
1408 memcpy (copy
, start
, len
);
1411 error ("There is no control character `\\%s' in the `%s' character set.",
1412 copy
, target_charset ());
1415 /* Parse a C escape sequence. STRING_PTR points to a variable
1416 containing a pointer to the string to parse. That pointer
1417 should point to the character after the \. That pointer
1418 is updated past the characters we use. The value of the
1419 escape sequence is returned.
1421 A negative value means the sequence \ newline was seen,
1422 which is supposed to be equivalent to nothing at all.
1424 If \ is followed by a null character, we return a negative
1425 value and leave the string pointer pointing at the null character.
1427 If \ is followed by 000, we return 0 and leave the string pointer
1428 after the zeros. A value of 0 does not mean end of string. */
1431 parse_escape (char **string_ptr
)
1434 int c
= *(*string_ptr
)++;
1435 if (c_parse_backslash (c
, &target_char
))
1447 /* Remember where this escape sequence started, for reporting
1449 char *sequence_start_pos
= *string_ptr
- 1;
1451 c
= *(*string_ptr
)++;
1455 /* XXXCHARSET: What is `delete' in the host character set? */
1458 if (!host_char_to_target (c
, &target_char
))
1459 error ("There is no character corresponding to `Delete' "
1460 "in the target character set `%s'.", host_charset ());
1465 target_char
= parse_escape (string_ptr
);
1468 if (!host_char_to_target (c
, &target_char
))
1469 no_control_char_error (sequence_start_pos
, *string_ptr
);
1472 /* Now target_char is something like `c', and we want to find
1473 its control-character equivalent. */
1474 if (!target_char_to_control_char (target_char
, &target_char
))
1475 no_control_char_error (sequence_start_pos
, *string_ptr
);
1480 /* XXXCHARSET: we need to use isdigit and value-of-digit
1481 methods of the host character set here. */
1497 if (c
>= '0' && c
<= '7')
1511 if (!host_char_to_target (c
, &target_char
))
1513 ("The escape sequence `\%c' is equivalent to plain `%c', which"
1514 " has no equivalent\n" "in the `%s' character set.", c
, c
,
1520 /* Print the character C on STREAM as part of the contents of a literal
1521 string whose delimiter is QUOTER. Note that this routine should only
1522 be call for printing things which are independent of the language
1523 of the program being debugged. */
1526 printchar (int c
, void (*do_fputs
) (const char *, struct ui_file
*),
1527 void (*do_fprintf
) (struct ui_file
*, const char *, ...),
1528 struct ui_file
*stream
, int quoter
)
1531 c
&= 0xFF; /* Avoid sign bit follies */
1533 if (c
< 0x20 || /* Low control chars */
1534 (c
>= 0x7F && c
< 0xA0) || /* DEL, High controls */
1535 (sevenbit_strings
&& c
>= 0x80))
1536 { /* high order bit set */
1540 do_fputs ("\\n", stream
);
1543 do_fputs ("\\b", stream
);
1546 do_fputs ("\\t", stream
);
1549 do_fputs ("\\f", stream
);
1552 do_fputs ("\\r", stream
);
1555 do_fputs ("\\e", stream
);
1558 do_fputs ("\\a", stream
);
1561 do_fprintf (stream
, "\\%.3o", (unsigned int) c
);
1567 if (c
== '\\' || c
== quoter
)
1568 do_fputs ("\\", stream
);
1569 do_fprintf (stream
, "%c", c
);
1573 /* Print the character C on STREAM as part of the contents of a
1574 literal string whose delimiter is QUOTER. Note that these routines
1575 should only be call for printing things which are independent of
1576 the language of the program being debugged. */
1579 fputstr_filtered (const char *str
, int quoter
, struct ui_file
*stream
)
1582 printchar (*str
++, fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1586 fputstr_unfiltered (const char *str
, int quoter
, struct ui_file
*stream
)
1589 printchar (*str
++, fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1593 fputstrn_unfiltered (const char *str
, int n
, int quoter
,
1594 struct ui_file
*stream
)
1597 for (i
= 0; i
< n
; i
++)
1598 printchar (str
[i
], fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1602 /* Number of lines per page or UINT_MAX if paging is disabled. */
1603 static unsigned int lines_per_page
;
1605 /* Number of chars per line or UINT_MAX if line folding is disabled. */
1606 static unsigned int chars_per_line
;
1608 /* Current count of lines printed on this page, chars on this line. */
1609 static unsigned int lines_printed
, chars_printed
;
1611 /* Buffer and start column of buffered text, for doing smarter word-
1612 wrapping. When someone calls wrap_here(), we start buffering output
1613 that comes through fputs_filtered(). If we see a newline, we just
1614 spit it out and forget about the wrap_here(). If we see another
1615 wrap_here(), we spit it out and remember the newer one. If we see
1616 the end of the line, we spit out a newline, the indent, and then
1617 the buffered output. */
1619 /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which
1620 are waiting to be output (they have already been counted in chars_printed).
1621 When wrap_buffer[0] is null, the buffer is empty. */
1622 static char *wrap_buffer
;
1624 /* Pointer in wrap_buffer to the next character to fill. */
1625 static char *wrap_pointer
;
1627 /* String to indent by if the wrap occurs. Must not be NULL if wrap_column
1629 static char *wrap_indent
;
1631 /* Column number on the screen where wrap_buffer begins, or 0 if wrapping
1632 is not in effect. */
1633 static int wrap_column
;
1636 /* Inialize the number of lines per page and chars per line. */
1639 init_page_info (void)
1642 if (!tui_get_command_dimension (&chars_per_line
, &lines_per_page
))
1645 #if defined(__GO32__)
1646 lines_per_page
= ScreenRows ();
1647 chars_per_line
= ScreenCols ();
1651 /* Make sure Readline has initialized its terminal settings. */
1652 rl_reset_terminal (NULL
);
1654 /* Get the screen size from Readline. */
1655 rl_get_screen_size (&rows
, &cols
);
1656 lines_per_page
= rows
;
1657 chars_per_line
= cols
;
1659 /* Readline should have fetched the termcap entry for us. */
1660 if (tgetnum ("li") < 0 || getenv ("EMACS"))
1662 /* The number of lines per page is not mentioned in the
1663 terminal description. This probably means that paging is
1664 not useful (e.g. emacs shell window), so disable paging. */
1665 lines_per_page
= UINT_MAX
;
1668 /* FIXME: Get rid of this junk. */
1669 #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
1670 SIGWINCH_HANDLER (SIGWINCH
);
1673 /* If the output is not a terminal, don't paginate it. */
1674 if (!ui_file_isatty (gdb_stdout
))
1675 lines_per_page
= UINT_MAX
;
1683 /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */
1686 set_screen_size (void)
1688 int rows
= lines_per_page
;
1689 int cols
= chars_per_line
;
1695 rl_get_screen_size (NULL
, &cols
);
1697 /* Update Readline's idea of the terminal size. */
1698 rl_set_screen_size (rows
, cols
);
1701 /* Reinitialize WRAP_BUFFER according to the current value of
1707 if (chars_per_line
== 0)
1712 wrap_buffer
= (char *) xmalloc (chars_per_line
+ 2);
1713 wrap_buffer
[0] = '\0';
1716 wrap_buffer
= (char *) xrealloc (wrap_buffer
, chars_per_line
+ 2);
1717 wrap_pointer
= wrap_buffer
; /* Start it at the beginning. */
1721 set_width_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1728 set_height_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1733 /* Wait, so the user can read what's on the screen. Prompt the user
1734 to continue by pressing RETURN. */
1737 prompt_for_continue (void)
1740 char cont_prompt
[120];
1742 if (annotation_level
> 1)
1743 printf_unfiltered ("\n\032\032pre-prompt-for-continue\n");
1745 strcpy (cont_prompt
,
1746 "---Type <return> to continue, or q <return> to quit---");
1747 if (annotation_level
> 1)
1748 strcat (cont_prompt
, "\n\032\032prompt-for-continue\n");
1750 /* We must do this *before* we call gdb_readline, else it will eventually
1751 call us -- thinking that we're trying to print beyond the end of the
1753 reinitialize_more_filter ();
1756 /* On a real operating system, the user can quit with SIGINT.
1759 'q' is provided on all systems so users don't have to change habits
1760 from system to system, and because telling them what to do in
1761 the prompt is more user-friendly than expecting them to think of
1763 /* Call readline, not gdb_readline, because GO32 readline handles control-C
1764 whereas control-C to gdb_readline will cause the user to get dumped
1766 ignore
= gdb_readline_wrapper (cont_prompt
);
1768 if (annotation_level
> 1)
1769 printf_unfiltered ("\n\032\032post-prompt-for-continue\n");
1774 while (*p
== ' ' || *p
== '\t')
1779 request_quit (SIGINT
);
1781 async_request_quit (0);
1787 /* Now we have to do this again, so that GDB will know that it doesn't
1788 need to save the ---Type <return>--- line at the top of the screen. */
1789 reinitialize_more_filter ();
1791 dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */
1794 /* Reinitialize filter; ie. tell it to reset to original values. */
1797 reinitialize_more_filter (void)
1803 /* Indicate that if the next sequence of characters overflows the line,
1804 a newline should be inserted here rather than when it hits the end.
1805 If INDENT is non-null, it is a string to be printed to indent the
1806 wrapped part on the next line. INDENT must remain accessible until
1807 the next call to wrap_here() or until a newline is printed through
1810 If the line is already overfull, we immediately print a newline and
1811 the indentation, and disable further wrapping.
1813 If we don't know the width of lines, but we know the page height,
1814 we must not wrap words, but should still keep track of newlines
1815 that were explicitly printed.
1817 INDENT should not contain tabs, as that will mess up the char count
1818 on the next line. FIXME.
1820 This routine is guaranteed to force out any output which has been
1821 squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be
1822 used to force out output from the wrap_buffer. */
1825 wrap_here (char *indent
)
1827 /* This should have been allocated, but be paranoid anyway. */
1829 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
1833 *wrap_pointer
= '\0';
1834 fputs_unfiltered (wrap_buffer
, gdb_stdout
);
1836 wrap_pointer
= wrap_buffer
;
1837 wrap_buffer
[0] = '\0';
1838 if (chars_per_line
== UINT_MAX
) /* No line overflow checking */
1842 else if (chars_printed
>= chars_per_line
)
1844 puts_filtered ("\n");
1846 puts_filtered (indent
);
1851 wrap_column
= chars_printed
;
1855 wrap_indent
= indent
;
1859 /* Print input string to gdb_stdout, filtered, with wrap,
1860 arranging strings in columns of n chars. String can be
1861 right or left justified in the column. Never prints
1862 trailing spaces. String should never be longer than
1863 width. FIXME: this could be useful for the EXAMINE
1864 command, which currently doesn't tabulate very well */
1867 puts_filtered_tabular (char *string
, int width
, int right
)
1873 gdb_assert (chars_per_line
> 0);
1874 if (chars_per_line
== UINT_MAX
)
1876 fputs_filtered (string
, gdb_stdout
);
1877 fputs_filtered ("\n", gdb_stdout
);
1881 if (((chars_printed
- 1) / width
+ 2) * width
>= chars_per_line
)
1882 fputs_filtered ("\n", gdb_stdout
);
1884 if (width
>= chars_per_line
)
1885 width
= chars_per_line
- 1;
1887 stringlen
= strlen (string
);
1889 if (chars_printed
> 0)
1890 spaces
= width
- (chars_printed
- 1) % width
- 1;
1892 spaces
+= width
- stringlen
;
1894 spacebuf
= alloca (spaces
+ 1);
1895 spacebuf
[spaces
] = '\0';
1897 spacebuf
[spaces
] = ' ';
1899 fputs_filtered (spacebuf
, gdb_stdout
);
1900 fputs_filtered (string
, gdb_stdout
);
1904 /* Ensure that whatever gets printed next, using the filtered output
1905 commands, starts at the beginning of the line. I.E. if there is
1906 any pending output for the current line, flush it and start a new
1907 line. Otherwise do nothing. */
1912 if (chars_printed
> 0)
1914 puts_filtered ("\n");
1919 /* Like fputs but if FILTER is true, pause after every screenful.
1921 Regardless of FILTER can wrap at points other than the final
1922 character of a line.
1924 Unlike fputs, fputs_maybe_filtered does not return a value.
1925 It is OK for LINEBUFFER to be NULL, in which case just don't print
1928 Note that a longjmp to top level may occur in this routine (only if
1929 FILTER is true) (since prompt_for_continue may do so) so this
1930 routine should not be called when cleanups are not in place. */
1933 fputs_maybe_filtered (const char *linebuffer
, struct ui_file
*stream
,
1936 const char *lineptr
;
1938 if (linebuffer
== 0)
1941 /* Don't do any filtering if it is disabled. */
1942 if ((stream
!= gdb_stdout
) || !pagination_enabled
1943 || (lines_per_page
== UINT_MAX
&& chars_per_line
== UINT_MAX
))
1945 fputs_unfiltered (linebuffer
, stream
);
1949 /* Go through and output each character. Show line extension
1950 when this is necessary; prompt user for new page when this is
1953 lineptr
= linebuffer
;
1956 /* Possible new page. */
1957 if (filter
&& (lines_printed
>= lines_per_page
- 1))
1958 prompt_for_continue ();
1960 while (*lineptr
&& *lineptr
!= '\n')
1962 /* Print a single line. */
1963 if (*lineptr
== '\t')
1966 *wrap_pointer
++ = '\t';
1968 fputc_unfiltered ('\t', stream
);
1969 /* Shifting right by 3 produces the number of tab stops
1970 we have already passed, and then adding one and
1971 shifting left 3 advances to the next tab stop. */
1972 chars_printed
= ((chars_printed
>> 3) + 1) << 3;
1978 *wrap_pointer
++ = *lineptr
;
1980 fputc_unfiltered (*lineptr
, stream
);
1985 if (chars_printed
>= chars_per_line
)
1987 unsigned int save_chars
= chars_printed
;
1991 /* If we aren't actually wrapping, don't output newline --
1992 if chars_per_line is right, we probably just overflowed
1993 anyway; if it's wrong, let us keep going. */
1995 fputc_unfiltered ('\n', stream
);
1997 /* Possible new page. */
1998 if (lines_printed
>= lines_per_page
- 1)
1999 prompt_for_continue ();
2001 /* Now output indentation and wrapped string */
2004 fputs_unfiltered (wrap_indent
, stream
);
2005 *wrap_pointer
= '\0'; /* Null-terminate saved stuff */
2006 fputs_unfiltered (wrap_buffer
, stream
); /* and eject it */
2007 /* FIXME, this strlen is what prevents wrap_indent from
2008 containing tabs. However, if we recurse to print it
2009 and count its chars, we risk trouble if wrap_indent is
2010 longer than (the user settable) chars_per_line.
2011 Note also that this can set chars_printed > chars_per_line
2012 if we are printing a long string. */
2013 chars_printed
= strlen (wrap_indent
)
2014 + (save_chars
- wrap_column
);
2015 wrap_pointer
= wrap_buffer
; /* Reset buffer */
2016 wrap_buffer
[0] = '\0';
2017 wrap_column
= 0; /* And disable fancy wrap */
2022 if (*lineptr
== '\n')
2025 wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */
2027 fputc_unfiltered ('\n', stream
);
2034 fputs_filtered (const char *linebuffer
, struct ui_file
*stream
)
2036 fputs_maybe_filtered (linebuffer
, stream
, 1);
2040 putchar_unfiltered (int c
)
2043 ui_file_write (gdb_stdout
, &buf
, 1);
2047 /* Write character C to gdb_stdout using GDB's paging mechanism and return C.
2048 May return nonlocally. */
2051 putchar_filtered (int c
)
2053 return fputc_filtered (c
, gdb_stdout
);
2057 fputc_unfiltered (int c
, struct ui_file
*stream
)
2060 ui_file_write (stream
, &buf
, 1);
2065 fputc_filtered (int c
, struct ui_file
*stream
)
2071 fputs_filtered (buf
, stream
);
2075 /* puts_debug is like fputs_unfiltered, except it prints special
2076 characters in printable fashion. */
2079 puts_debug (char *prefix
, char *string
, char *suffix
)
2083 /* Print prefix and suffix after each line. */
2084 static int new_line
= 1;
2085 static int return_p
= 0;
2086 static char *prev_prefix
= "";
2087 static char *prev_suffix
= "";
2089 if (*string
== '\n')
2092 /* If the prefix is changing, print the previous suffix, a new line,
2093 and the new prefix. */
2094 if ((return_p
|| (strcmp (prev_prefix
, prefix
) != 0)) && !new_line
)
2096 fputs_unfiltered (prev_suffix
, gdb_stdlog
);
2097 fputs_unfiltered ("\n", gdb_stdlog
);
2098 fputs_unfiltered (prefix
, gdb_stdlog
);
2101 /* Print prefix if we printed a newline during the previous call. */
2105 fputs_unfiltered (prefix
, gdb_stdlog
);
2108 prev_prefix
= prefix
;
2109 prev_suffix
= suffix
;
2111 /* Output characters in a printable format. */
2112 while ((ch
= *string
++) != '\0')
2118 fputc_unfiltered (ch
, gdb_stdlog
);
2121 fprintf_unfiltered (gdb_stdlog
, "\\x%02x", ch
& 0xff);
2125 fputs_unfiltered ("\\\\", gdb_stdlog
);
2128 fputs_unfiltered ("\\b", gdb_stdlog
);
2131 fputs_unfiltered ("\\f", gdb_stdlog
);
2135 fputs_unfiltered ("\\n", gdb_stdlog
);
2138 fputs_unfiltered ("\\r", gdb_stdlog
);
2141 fputs_unfiltered ("\\t", gdb_stdlog
);
2144 fputs_unfiltered ("\\v", gdb_stdlog
);
2148 return_p
= ch
== '\r';
2151 /* Print suffix if we printed a newline. */
2154 fputs_unfiltered (suffix
, gdb_stdlog
);
2155 fputs_unfiltered ("\n", gdb_stdlog
);
2160 /* Print a variable number of ARGS using format FORMAT. If this
2161 information is going to put the amount written (since the last call
2162 to REINITIALIZE_MORE_FILTER or the last page break) over the page size,
2163 call prompt_for_continue to get the users permision to continue.
2165 Unlike fprintf, this function does not return a value.
2167 We implement three variants, vfprintf (takes a vararg list and stream),
2168 fprintf (takes a stream to write on), and printf (the usual).
2170 Note also that a longjmp to top level may occur in this routine
2171 (since prompt_for_continue may do so) so this routine should not be
2172 called when cleanups are not in place. */
2175 vfprintf_maybe_filtered (struct ui_file
*stream
, const char *format
,
2176 va_list args
, int filter
)
2179 struct cleanup
*old_cleanups
;
2181 xvasprintf (&linebuffer
, format
, args
);
2182 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2183 fputs_maybe_filtered (linebuffer
, stream
, filter
);
2184 do_cleanups (old_cleanups
);
2189 vfprintf_filtered (struct ui_file
*stream
, const char *format
, va_list args
)
2191 vfprintf_maybe_filtered (stream
, format
, args
, 1);
2195 vfprintf_unfiltered (struct ui_file
*stream
, const char *format
, va_list args
)
2198 struct cleanup
*old_cleanups
;
2200 xvasprintf (&linebuffer
, format
, args
);
2201 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2202 fputs_unfiltered (linebuffer
, stream
);
2203 do_cleanups (old_cleanups
);
2207 vprintf_filtered (const char *format
, va_list args
)
2209 vfprintf_maybe_filtered (gdb_stdout
, format
, args
, 1);
2213 vprintf_unfiltered (const char *format
, va_list args
)
2215 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2219 fprintf_filtered (struct ui_file
*stream
, const char *format
, ...)
2222 va_start (args
, format
);
2223 vfprintf_filtered (stream
, format
, args
);
2228 fprintf_unfiltered (struct ui_file
*stream
, const char *format
, ...)
2231 va_start (args
, format
);
2232 vfprintf_unfiltered (stream
, format
, args
);
2236 /* Like fprintf_filtered, but prints its result indented.
2237 Called as fprintfi_filtered (spaces, stream, format, ...); */
2240 fprintfi_filtered (int spaces
, struct ui_file
*stream
, const char *format
,
2244 va_start (args
, format
);
2245 print_spaces_filtered (spaces
, stream
);
2247 vfprintf_filtered (stream
, format
, args
);
2253 printf_filtered (const char *format
, ...)
2256 va_start (args
, format
);
2257 vfprintf_filtered (gdb_stdout
, format
, args
);
2263 printf_unfiltered (const char *format
, ...)
2266 va_start (args
, format
);
2267 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2271 /* Like printf_filtered, but prints it's result indented.
2272 Called as printfi_filtered (spaces, format, ...); */
2275 printfi_filtered (int spaces
, const char *format
, ...)
2278 va_start (args
, format
);
2279 print_spaces_filtered (spaces
, gdb_stdout
);
2280 vfprintf_filtered (gdb_stdout
, format
, args
);
2284 /* Easy -- but watch out!
2286 This routine is *not* a replacement for puts()! puts() appends a newline.
2287 This one doesn't, and had better not! */
2290 puts_filtered (const char *string
)
2292 fputs_filtered (string
, gdb_stdout
);
2296 puts_unfiltered (const char *string
)
2298 fputs_unfiltered (string
, gdb_stdout
);
2301 /* Return a pointer to N spaces and a null. The pointer is good
2302 until the next call to here. */
2307 static char *spaces
= 0;
2308 static int max_spaces
= -1;
2314 spaces
= (char *) xmalloc (n
+ 1);
2315 for (t
= spaces
+ n
; t
!= spaces
;)
2321 return spaces
+ max_spaces
- n
;
2324 /* Print N spaces. */
2326 print_spaces_filtered (int n
, struct ui_file
*stream
)
2328 fputs_filtered (n_spaces (n
), stream
);
2331 /* C++/ObjC demangler stuff. */
2333 /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language
2334 LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
2335 If the name is not mangled, or the language for the name is unknown, or
2336 demangling is off, the name is printed in its "raw" form. */
2339 fprintf_symbol_filtered (struct ui_file
*stream
, char *name
,
2340 enum language lang
, int arg_mode
)
2346 /* If user wants to see raw output, no problem. */
2349 fputs_filtered (name
, stream
);
2353 demangled
= language_demangle (language_def (lang
), name
, arg_mode
);
2354 fputs_filtered (demangled
? demangled
: name
, stream
);
2355 if (demangled
!= NULL
)
2363 /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any
2364 differences in whitespace. Returns 0 if they match, non-zero if they
2365 don't (slightly different than strcmp()'s range of return values).
2367 As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO".
2368 This "feature" is useful when searching for matching C++ function names
2369 (such as if the user types 'break FOO', where FOO is a mangled C++
2373 strcmp_iw (const char *string1
, const char *string2
)
2375 while ((*string1
!= '\0') && (*string2
!= '\0'))
2377 while (isspace (*string1
))
2381 while (isspace (*string2
))
2385 if (*string1
!= *string2
)
2389 if (*string1
!= '\0')
2395 return (*string1
!= '\0' && *string1
!= '(') || (*string2
!= '\0');
2398 /* This is like strcmp except that it ignores whitespace and treats
2399 '(' as the first non-NULL character in terms of ordering. Like
2400 strcmp (and unlike strcmp_iw), it returns negative if STRING1 <
2401 STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2
2402 according to that ordering.
2404 If a list is sorted according to this function and if you want to
2405 find names in the list that match some fixed NAME according to
2406 strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
2407 where this function would put NAME.
2409 Here are some examples of why using strcmp to sort is a bad idea:
2413 Say your partial symtab contains: "foo<char *>", "goo". Then, if
2414 we try to do a search for "foo<char*>", strcmp will locate this
2415 after "foo<char *>" and before "goo". Then lookup_partial_symbol
2416 will start looking at strings beginning with "goo", and will never
2417 see the correct match of "foo<char *>".
2419 Parenthesis example:
2421 In practice, this is less like to be an issue, but I'll give it a
2422 shot. Let's assume that '$' is a legitimate character to occur in
2423 symbols. (Which may well even be the case on some systems.) Then
2424 say that the partial symbol table contains "foo$" and "foo(int)".
2425 strcmp will put them in this order, since '$' < '('. Now, if the
2426 user searches for "foo", then strcmp will sort "foo" before "foo$".
2427 Then lookup_partial_symbol will notice that strcmp_iw("foo$",
2428 "foo") is false, so it won't proceed to the actual match of
2429 "foo(int)" with "foo". */
2432 strcmp_iw_ordered (const char *string1
, const char *string2
)
2434 while ((*string1
!= '\0') && (*string2
!= '\0'))
2436 while (isspace (*string1
))
2440 while (isspace (*string2
))
2444 if (*string1
!= *string2
)
2448 if (*string1
!= '\0')
2457 /* Characters are non-equal unless they're both '\0'; we want to
2458 make sure we get the comparison right according to our
2459 comparison in the cases where one of them is '\0' or '('. */
2461 if (*string2
== '\0')
2466 if (*string2
== '\0')
2471 if (*string2
== '(')
2474 return *string1
- *string2
;
2478 /* A simple comparison function with opposite semantics to strcmp. */
2481 streq (const char *lhs
, const char *rhs
)
2483 return !strcmp (lhs
, rhs
);
2489 ** Answer whether string_to_compare is a full or partial match to
2490 ** template_string. The partial match must be in sequence starting
2494 subset_compare (char *string_to_compare
, char *template_string
)
2497 if (template_string
!= (char *) NULL
&& string_to_compare
!= (char *) NULL
2498 && strlen (string_to_compare
) <= strlen (template_string
))
2501 (template_string
, string_to_compare
, strlen (string_to_compare
)) == 0);
2508 static void pagination_on_command (char *arg
, int from_tty
);
2510 pagination_on_command (char *arg
, int from_tty
)
2512 pagination_enabled
= 1;
2515 static void pagination_on_command (char *arg
, int from_tty
);
2517 pagination_off_command (char *arg
, int from_tty
)
2519 pagination_enabled
= 0;
2524 initialize_utils (void)
2526 struct cmd_list_element
*c
;
2528 c
= add_set_cmd ("width", class_support
, var_uinteger
, &chars_per_line
,
2529 "Set number of characters gdb thinks are in a line.",
2531 add_show_from_set (c
, &showlist
);
2532 set_cmd_sfunc (c
, set_width_command
);
2534 c
= add_set_cmd ("height", class_support
, var_uinteger
, &lines_per_page
,
2535 "Set number of lines gdb thinks are in a page.", &setlist
);
2536 add_show_from_set (c
, &showlist
);
2537 set_cmd_sfunc (c
, set_height_command
);
2542 (add_set_cmd ("demangle", class_support
, var_boolean
,
2544 "Set demangling of encoded C++/ObjC names when displaying symbols.",
2545 &setprintlist
), &showprintlist
);
2548 (add_set_cmd ("pagination", class_support
,
2549 var_boolean
, (char *) &pagination_enabled
,
2550 "Set state of pagination.", &setlist
), &showlist
);
2554 add_com ("am", class_support
, pagination_on_command
,
2555 "Enable pagination");
2556 add_com ("sm", class_support
, pagination_off_command
,
2557 "Disable pagination");
2561 (add_set_cmd ("sevenbit-strings", class_support
, var_boolean
,
2562 (char *) &sevenbit_strings
,
2563 "Set printing of 8-bit characters in strings as \\nnn.",
2564 &setprintlist
), &showprintlist
);
2567 (add_set_cmd ("asm-demangle", class_support
, var_boolean
,
2568 (char *) &asm_demangle
,
2569 "Set demangling of C++/ObjC names in disassembly listings.",
2570 &setprintlist
), &showprintlist
);
2573 /* Machine specific function to handle SIGWINCH signal. */
2575 #ifdef SIGWINCH_HANDLER_BODY
2576 SIGWINCH_HANDLER_BODY
2578 /* print routines to handle variable size regs, etc. */
2579 /* temporary storage using circular buffer */
2585 static char buf
[NUMCELLS
][CELLSIZE
];
2586 static int cell
= 0;
2587 if (++cell
>= NUMCELLS
)
2595 return (TARGET_ADDR_BIT
/ 8 * 2);
2599 paddr (CORE_ADDR addr
)
2601 return phex (addr
, TARGET_ADDR_BIT
/ 8);
2605 paddr_nz (CORE_ADDR addr
)
2607 return phex_nz (addr
, TARGET_ADDR_BIT
/ 8);
2611 decimal2str (char *paddr_str
, char *sign
, ULONGEST addr
)
2613 /* steal code from valprint.c:print_decimal(). Should this worry
2614 about the real size of addr as the above does? */
2615 unsigned long temp
[3];
2619 temp
[i
] = addr
% (1000 * 1000 * 1000);
2620 addr
/= (1000 * 1000 * 1000);
2623 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2627 sprintf (paddr_str
, "%s%lu", sign
, temp
[0]);
2630 sprintf (paddr_str
, "%s%lu%09lu", sign
, temp
[1], temp
[0]);
2633 sprintf (paddr_str
, "%s%lu%09lu%09lu", sign
, temp
[2], temp
[1], temp
[0]);
2636 internal_error (__FILE__
, __LINE__
,
2637 "failed internal consistency check");
2642 paddr_u (CORE_ADDR addr
)
2644 char *paddr_str
= get_cell ();
2645 decimal2str (paddr_str
, "", addr
);
2650 paddr_d (LONGEST addr
)
2652 char *paddr_str
= get_cell ();
2654 decimal2str (paddr_str
, "-", -addr
);
2656 decimal2str (paddr_str
, "", addr
);
2660 /* eliminate warning from compiler on 32-bit systems */
2661 static int thirty_two
= 32;
2664 phex (ULONGEST l
, int sizeof_l
)
2671 sprintf (str
, "%08lx%08lx",
2672 (unsigned long) (l
>> thirty_two
),
2673 (unsigned long) (l
& 0xffffffff));
2677 sprintf (str
, "%08lx", (unsigned long) l
);
2681 sprintf (str
, "%04x", (unsigned short) (l
& 0xffff));
2684 str
= phex (l
, sizeof (l
));
2691 phex_nz (ULONGEST l
, int sizeof_l
)
2698 unsigned long high
= (unsigned long) (l
>> thirty_two
);
2701 sprintf (str
, "%lx", (unsigned long) (l
& 0xffffffff));
2703 sprintf (str
, "%lx%08lx", high
, (unsigned long) (l
& 0xffffffff));
2708 sprintf (str
, "%lx", (unsigned long) l
);
2712 sprintf (str
, "%x", (unsigned short) (l
& 0xffff));
2715 str
= phex_nz (l
, sizeof (l
));
2722 /* Convert a CORE_ADDR into a string. */
2724 core_addr_to_string (const CORE_ADDR addr
)
2726 char *str
= get_cell ();
2728 strcat (str
, phex (addr
, sizeof (addr
)));
2733 core_addr_to_string_nz (const CORE_ADDR addr
)
2735 char *str
= get_cell ();
2737 strcat (str
, phex_nz (addr
, sizeof (addr
)));
2741 /* Convert a string back into a CORE_ADDR. */
2743 string_to_core_addr (const char *my_string
)
2746 if (my_string
[0] == '0' && tolower (my_string
[1]) == 'x')
2748 /* Assume that it is in decimal. */
2750 for (i
= 2; my_string
[i
] != '\0'; i
++)
2752 if (isdigit (my_string
[i
]))
2753 addr
= (my_string
[i
] - '0') + (addr
* 16);
2754 else if (isxdigit (my_string
[i
]))
2755 addr
= (tolower (my_string
[i
]) - 'a' + 0xa) + (addr
* 16);
2757 internal_error (__FILE__
, __LINE__
, "invalid hex");
2762 /* Assume that it is in decimal. */
2764 for (i
= 0; my_string
[i
] != '\0'; i
++)
2766 if (isdigit (my_string
[i
]))
2767 addr
= (my_string
[i
] - '0') + (addr
* 10);
2769 internal_error (__FILE__
, __LINE__
, "invalid decimal");
2776 gdb_realpath (const char *filename
)
2778 /* Method 1: The system has a compile time upper bound on a filename
2779 path. Use that and realpath() to canonicalize the name. This is
2780 the most common case. Note that, if there isn't a compile time
2781 upper bound, you want to avoid realpath() at all costs. */
2782 #if defined(HAVE_REALPATH)
2784 # if defined (PATH_MAX)
2786 # define USE_REALPATH
2787 # elif defined (MAXPATHLEN)
2788 char buf
[MAXPATHLEN
];
2789 # define USE_REALPATH
2791 # if defined (USE_REALPATH)
2792 const char *rp
= realpath (filename
, buf
);
2795 return xstrdup (rp
);
2798 #endif /* HAVE_REALPATH */
2800 /* Method 2: The host system (i.e., GNU) has the function
2801 canonicalize_file_name() which malloc's a chunk of memory and
2802 returns that, use that. */
2803 #if defined(HAVE_CANONICALIZE_FILE_NAME)
2805 char *rp
= canonicalize_file_name (filename
);
2807 return xstrdup (filename
);
2813 /* FIXME: cagney/2002-11-13:
2815 Method 2a: Use realpath() with a NULL buffer. Some systems, due
2816 to the problems described in in method 3, have modified their
2817 realpath() implementation so that it will allocate a buffer when
2818 NULL is passed in. Before this can be used, though, some sort of
2819 configure time test would need to be added. Otherwize the code
2820 will likely core dump. */
2822 /* Method 3: Now we're getting desperate! The system doesn't have a
2823 compile time buffer size and no alternative function. Query the
2824 OS, using pathconf(), for the buffer limit. Care is needed
2825 though, some systems do not limit PATH_MAX (return -1 for
2826 pathconf()) making it impossible to pass a correctly sized buffer
2827 to realpath() (it could always overflow). On those systems, we
2829 #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
2831 /* Find out the max path size. */
2832 long path_max
= pathconf ("/", _PC_PATH_MAX
);
2835 /* PATH_MAX is bounded. */
2836 char *buf
= alloca (path_max
);
2837 char *rp
= realpath (filename
, buf
);
2838 return xstrdup (rp
? rp
: filename
);
2843 /* This system is a lost cause, just dup the buffer. */
2844 return xstrdup (filename
);
2847 /* Return a copy of FILENAME, with its directory prefix canonicalized
2851 xfullpath (const char *filename
)
2853 const char *base_name
= lbasename (filename
);
2858 /* Extract the basename of filename, and return immediately
2859 a copy of filename if it does not contain any directory prefix. */
2860 if (base_name
== filename
)
2861 return xstrdup (filename
);
2863 dir_name
= alloca ((size_t) (base_name
- filename
+ 2));
2864 /* Allocate enough space to store the dir_name + plus one extra
2865 character sometimes needed under Windows (see below), and
2866 then the closing \000 character */
2867 strncpy (dir_name
, filename
, base_name
- filename
);
2868 dir_name
[base_name
- filename
] = '\000';
2870 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2871 /* We need to be careful when filename is of the form 'd:foo', which
2872 is equivalent of d:./foo, which is totally different from d:/foo. */
2873 if (strlen (dir_name
) == 2 && isalpha (dir_name
[0]) && dir_name
[1] == ':')
2876 dir_name
[3] = '\000';
2880 /* Canonicalize the directory prefix, and build the resulting
2881 filename. If the dirname realpath already contains an ending
2882 directory separator, avoid doubling it. */
2883 real_path
= gdb_realpath (dir_name
);
2884 if (IS_DIR_SEPARATOR (real_path
[strlen (real_path
) - 1]))
2885 result
= concat (real_path
, base_name
, NULL
);
2887 result
= concat (real_path
, SLASH_STRING
, base_name
, NULL
);
2894 /* This is the 32-bit CRC function used by the GNU separate debug
2895 facility. An executable may contain a section named
2896 .gnu_debuglink, which holds the name of a separate executable file
2897 containing its debug info, and a checksum of that file's contents,
2898 computed using this function. */
2900 gnu_debuglink_crc32 (unsigned long crc
, unsigned char *buf
, size_t len
)
2902 static const unsigned long crc32_table
[256] = {
2903 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
2904 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
2905 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
2906 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
2907 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
2908 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
2909 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
2910 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
2911 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
2912 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
2913 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
2914 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
2915 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
2916 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
2917 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
2918 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
2919 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
2920 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
2921 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
2922 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
2923 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
2924 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
2925 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
2926 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
2927 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
2928 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
2929 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
2930 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
2931 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
2932 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
2933 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
2934 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
2935 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
2936 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
2937 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
2938 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
2939 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
2940 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
2941 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
2942 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
2943 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
2944 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
2945 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
2946 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
2947 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
2948 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
2949 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
2950 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
2951 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
2952 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
2953 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
2958 crc
= ~crc
& 0xffffffff;
2959 for (end
= buf
+ len
; buf
< end
; ++buf
)
2960 crc
= crc32_table
[(crc
^ *buf
) & 0xff] ^ (crc
>> 8);
2961 return ~crc
& 0xffffffff;;
2965 align_up (ULONGEST v
, int n
)
2967 /* Check that N is really a power of two. */
2968 gdb_assert (n
&& (n
& (n
-1)) == 0);
2969 return (v
+ n
- 1) & -n
;
2973 align_down (ULONGEST v
, int n
)
2975 /* Check that N is really a power of two. */
2976 gdb_assert (n
&& (n
& (n
-1)) == 0);