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 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
);
632 error_stream (struct ui_file
*stream
)
634 if (error_begin_hook
)
637 /* Copy the stream into the GDB_LASTERR buffer. */
638 ui_file_rewind (gdb_lasterr
);
639 ui_file_put (stream
, do_write
, gdb_lasterr
);
641 /* Write the message plus any error_pre_print to gdb_stderr. */
642 target_terminal_ours ();
643 wrap_here (""); /* Force out any buffered output */
644 gdb_flush (gdb_stdout
);
645 annotate_error_begin ();
647 fputs_filtered (error_pre_print
, gdb_stderr
);
648 ui_file_put (stream
, do_write
, gdb_stderr
);
649 fprintf_filtered (gdb_stderr
, "\n");
651 throw_exception (RETURN_ERROR
);
654 /* Get the last error message issued by gdb */
657 error_last_message (void)
660 return ui_file_xstrdup (gdb_lasterr
, &len
);
663 /* This is to be called by main() at the very beginning */
668 gdb_lasterr
= mem_fileopen ();
671 /* Print a message reporting an internal error/warning. Ask the user
672 if they want to continue, dump core, or just exit. Return
673 something to indicate a quit. */
675 struct internal_problem
678 /* FIXME: cagney/2002-08-15: There should be ``maint set/show''
679 commands available for controlling these variables. */
680 enum auto_boolean should_quit
;
681 enum auto_boolean should_dump_core
;
684 /* Report a problem, internal to GDB, to the user. Once the problem
685 has been reported, and assuming GDB didn't quit, the caller can
686 either allow execution to resume or throw an error. */
689 internal_vproblem (struct internal_problem
*problem
,
690 const char *file
, int line
, const char *fmt
, va_list ap
)
697 /* Don't allow infinite error/warning recursion. */
699 static char msg
[] = "Recursive internal problem.\n";
707 fputs_unfiltered (msg
, gdb_stderr
);
708 abort (); /* NOTE: GDB has only three calls to abort(). */
711 write (STDERR_FILENO
, msg
, sizeof (msg
));
716 /* Try to get the message out and at the start of a new line. */
717 target_terminal_ours ();
720 /* Create a string containing the full error/warning message. Need
721 to call query with this full string, as otherwize the reason
722 (error/warning) and question become separated. Format using a
723 style similar to a compiler error message. Include extra detail
724 so that the user knows that they are living on the edge. */
727 xvasprintf (&msg
, fmt
, ap
);
728 xasprintf (&reason
, "\
730 A problem internal to GDB has been detected,\n\
731 further debugging may prove unreliable.", file
, line
, problem
->name
, msg
);
733 make_cleanup (xfree
, reason
);
736 switch (problem
->should_quit
)
738 case AUTO_BOOLEAN_AUTO
:
739 /* Default (yes/batch case) is to quit GDB. When in batch mode
740 this lessens the likelhood of GDB going into an infinate
742 quit_p
= query ("%s\nQuit this debugging session? ", reason
);
744 case AUTO_BOOLEAN_TRUE
:
747 case AUTO_BOOLEAN_FALSE
:
751 internal_error (__FILE__
, __LINE__
, "bad switch");
754 switch (problem
->should_dump_core
)
756 case AUTO_BOOLEAN_AUTO
:
757 /* Default (yes/batch case) is to dump core. This leaves a GDB
758 `dropping' so that it is easier to see that something went
760 dump_core_p
= query ("%s\nCreate a core file of GDB? ", reason
);
763 case AUTO_BOOLEAN_TRUE
:
766 case AUTO_BOOLEAN_FALSE
:
770 internal_error (__FILE__
, __LINE__
, "bad switch");
776 abort (); /* NOTE: GDB has only three calls to abort(). */
785 abort (); /* NOTE: GDB has only three calls to abort(). */
792 static struct internal_problem internal_error_problem
= {
793 "internal-error", AUTO_BOOLEAN_AUTO
, AUTO_BOOLEAN_AUTO
797 internal_verror (const char *file
, int line
, const char *fmt
, va_list ap
)
799 internal_vproblem (&internal_error_problem
, file
, line
, fmt
, ap
);
800 throw_exception (RETURN_ERROR
);
804 internal_error (const char *file
, int line
, const char *string
, ...)
807 va_start (ap
, string
);
808 internal_verror (file
, line
, string
, ap
);
812 static struct internal_problem internal_warning_problem
= {
813 "internal-error", AUTO_BOOLEAN_AUTO
, AUTO_BOOLEAN_AUTO
817 internal_vwarning (const char *file
, int line
, const char *fmt
, va_list ap
)
819 internal_vproblem (&internal_warning_problem
, file
, line
, fmt
, ap
);
823 internal_warning (const char *file
, int line
, const char *string
, ...)
826 va_start (ap
, string
);
827 internal_vwarning (file
, line
, string
, ap
);
831 /* The strerror() function can return NULL for errno values that are
832 out of range. Provide a "safe" version that always returns a
836 safe_strerror (int errnum
)
841 msg
= strerror (errnum
);
844 sprintf (buf
, "(undocumented errno %d)", errnum
);
850 /* Print the system error message for errno, and also mention STRING
851 as the file name for which the error was encountered.
852 Then return to command level. */
855 perror_with_name (const char *string
)
860 err
= safe_strerror (errno
);
861 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
862 strcpy (combined
, string
);
863 strcat (combined
, ": ");
864 strcat (combined
, err
);
866 /* I understand setting these is a matter of taste. Still, some people
867 may clear errno but not know about bfd_error. Doing this here is not
869 bfd_set_error (bfd_error_no_error
);
872 error ("%s.", combined
);
875 /* Print the system error message for ERRCODE, and also mention STRING
876 as the file name for which the error was encountered. */
879 print_sys_errmsg (const char *string
, int errcode
)
884 err
= safe_strerror (errcode
);
885 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
886 strcpy (combined
, string
);
887 strcat (combined
, ": ");
888 strcat (combined
, err
);
890 /* We want anything which was printed on stdout to come out first, before
892 gdb_flush (gdb_stdout
);
893 fprintf_unfiltered (gdb_stderr
, "%s.\n", combined
);
896 /* Control C eventually causes this to be called, at a convenient time. */
901 struct serial
*gdb_stdout_serial
= serial_fdopen (1);
903 target_terminal_ours ();
905 /* We want all output to appear now, before we print "Quit". We
906 have 3 levels of buffering we have to flush (it's possible that
907 some of these should be changed to flush the lower-level ones
910 /* 1. The _filtered buffer. */
911 wrap_here ((char *) 0);
913 /* 2. The stdio buffer. */
914 gdb_flush (gdb_stdout
);
915 gdb_flush (gdb_stderr
);
917 /* 3. The system-level buffer. */
918 serial_drain_output (gdb_stdout_serial
);
919 serial_un_fdopen (gdb_stdout_serial
);
921 annotate_error_begin ();
923 /* Don't use *_filtered; we don't want to prompt the user to continue. */
925 fputs_unfiltered (quit_pre_print
, gdb_stderr
);
928 /* No steenking SIGINT will ever be coming our way when the
929 program is resumed. Don't lie. */
930 fprintf_unfiltered (gdb_stderr
, "Quit\n");
933 /* If there is no terminal switching for this target, then we can't
934 possibly get screwed by the lack of job control. */
935 || current_target
.to_terminal_ours
== NULL
)
936 fprintf_unfiltered (gdb_stderr
, "Quit\n");
938 fprintf_unfiltered (gdb_stderr
,
939 "Quit (expect signal SIGINT when the program is resumed)\n");
941 throw_exception (RETURN_QUIT
);
944 /* Control C comes here */
946 request_quit (int signo
)
949 /* Restore the signal handler. Harmless with BSD-style signals, needed
950 for System V-style signals. So just always do it, rather than worrying
951 about USG defines and stuff like that. */
952 signal (signo
, request_quit
);
962 /* Memory management stuff (malloc friends). */
964 #if !defined (USE_MMALLOC)
967 mmalloc (void *md
, size_t size
)
969 return malloc (size
); /* NOTE: GDB's only call to malloc() */
973 mrealloc (void *md
, void *ptr
, size_t size
)
975 if (ptr
== 0) /* Guard against old realloc's */
976 return mmalloc (md
, size
);
978 return realloc (ptr
, size
); /* NOTE: GDB's only call to ralloc() */
982 mcalloc (void *md
, size_t number
, size_t size
)
984 return calloc (number
, size
); /* NOTE: GDB's only call to calloc() */
988 mfree (void *md
, void *ptr
)
990 free (ptr
); /* NOTE: GDB's only call to free() */
993 #endif /* USE_MMALLOC */
995 #if !defined (USE_MMALLOC) || defined (NO_MMCHECK)
998 init_malloc (void *md
)
1002 #else /* Have mmalloc and want corruption checking */
1007 fprintf_unfiltered (gdb_stderr
, "Memory corruption\n");
1008 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
1011 /* Attempt to install hooks in mmalloc/mrealloc/mfree for the heap specified
1012 by MD, to detect memory corruption. Note that MD may be NULL to specify
1013 the default heap that grows via sbrk.
1015 Note that for freshly created regions, we must call mmcheckf prior to any
1016 mallocs in the region. Otherwise, any region which was allocated prior to
1017 installing the checking hooks, which is later reallocated or freed, will
1018 fail the checks! The mmcheck function only allows initial hooks to be
1019 installed before the first mmalloc. However, anytime after we have called
1020 mmcheck the first time to install the checking hooks, we can call it again
1021 to update the function pointer to the memory corruption handler.
1023 Returns zero on failure, non-zero on success. */
1025 #ifndef MMCHECK_FORCE
1026 #define MMCHECK_FORCE 0
1030 init_malloc (void *md
)
1032 if (!mmcheckf (md
, malloc_botch
, MMCHECK_FORCE
))
1034 /* Don't use warning(), which relies on current_target being set
1035 to something other than dummy_target, until after
1036 initialize_all_files(). */
1040 "warning: failed to install memory consistency checks; ");
1041 fprintf_unfiltered (gdb_stderr
,
1042 "configuration should define NO_MMCHECK or MMCHECK_FORCE\n");
1048 #endif /* Have mmalloc and want corruption checking */
1050 /* Called when a memory allocation fails, with the number of bytes of
1051 memory requested in SIZE. */
1058 internal_error (__FILE__
, __LINE__
,
1059 "virtual memory exhausted: can't allocate %ld bytes.",
1064 internal_error (__FILE__
, __LINE__
, "virtual memory exhausted.");
1068 /* The xmmalloc() family of memory management routines.
1070 These are are like the mmalloc() family except that they implement
1071 consistent semantics and guard against typical memory management
1072 problems: if a malloc fails, an internal error is thrown; if
1073 free(NULL) is called, it is ignored; if *alloc(0) is called, NULL
1076 All these routines are implemented using the mmalloc() family. */
1079 xmmalloc (void *md
, size_t size
)
1083 /* See libiberty/xmalloc.c. This function need's to match that's
1084 semantics. It never returns NULL. */
1088 val
= mmalloc (md
, size
);
1096 xmrealloc (void *md
, void *ptr
, size_t size
)
1100 /* See libiberty/xmalloc.c. This function need's to match that's
1101 semantics. It never returns NULL. */
1106 val
= mrealloc (md
, ptr
, size
);
1108 val
= mmalloc (md
, size
);
1116 xmcalloc (void *md
, size_t number
, size_t size
)
1120 /* See libiberty/xmalloc.c. This function need's to match that's
1121 semantics. It never returns NULL. */
1122 if (number
== 0 || size
== 0)
1128 mem
= mcalloc (md
, number
, size
);
1130 nomem (number
* size
);
1136 xmfree (void *md
, void *ptr
)
1142 /* The xmalloc() (libiberty.h) family of memory management routines.
1144 These are like the ISO-C malloc() family except that they implement
1145 consistent semantics and guard against typical memory management
1146 problems. See xmmalloc() above for further information.
1148 All these routines are wrappers to the xmmalloc() family. */
1150 /* NOTE: These are declared using PTR to ensure consistency with
1151 "libiberty.h". xfree() is GDB local. */
1154 xmalloc (size_t size
)
1156 return xmmalloc (NULL
, size
);
1160 xrealloc (PTR ptr
, size_t size
) /* OK: PTR */
1162 return xmrealloc (NULL
, ptr
, size
);
1166 xcalloc (size_t number
, size_t size
)
1168 return xmcalloc (NULL
, number
, size
);
1178 /* Like asprintf/vasprintf but get an internal_error if the call
1182 xstrprintf (const char *format
, ...)
1186 va_start (args
, format
);
1187 xvasprintf (&ret
, format
, args
);
1193 xasprintf (char **ret
, const char *format
, ...)
1196 va_start (args
, format
);
1197 xvasprintf (ret
, format
, args
);
1202 xvasprintf (char **ret
, const char *format
, va_list ap
)
1204 int status
= vasprintf (ret
, format
, ap
);
1205 /* NULL could be returned due to a memory allocation problem; a
1206 badly format string; or something else. */
1208 internal_error (__FILE__
, __LINE__
,
1209 "vasprintf returned NULL buffer (errno %d)", errno
);
1210 /* A negative status with a non-NULL buffer shouldn't never
1211 happen. But to be sure. */
1213 internal_error (__FILE__
, __LINE__
,
1214 "vasprintf call failed (errno %d)", errno
);
1218 /* My replacement for the read system call.
1219 Used like `read' but keeps going if `read' returns too soon. */
1222 myread (int desc
, char *addr
, int len
)
1229 val
= read (desc
, addr
, len
);
1233 return orglen
- len
;
1240 /* Make a copy of the string at PTR with SIZE characters
1241 (and add a null character at the end in the copy).
1242 Uses malloc to get the space. Returns the address of the copy. */
1245 savestring (const char *ptr
, size_t size
)
1247 char *p
= (char *) xmalloc (size
+ 1);
1248 memcpy (p
, ptr
, size
);
1254 msavestring (void *md
, const char *ptr
, size_t size
)
1256 char *p
= (char *) xmmalloc (md
, size
+ 1);
1257 memcpy (p
, ptr
, size
);
1263 mstrsave (void *md
, const char *ptr
)
1265 return (msavestring (md
, ptr
, strlen (ptr
)));
1269 print_spaces (int n
, struct ui_file
*file
)
1271 fputs_unfiltered (n_spaces (n
), file
);
1274 /* Print a host address. */
1277 gdb_print_host_address (const void *addr
, struct ui_file
*stream
)
1280 /* We could use the %p conversion specifier to fprintf if we had any
1281 way of knowing whether this host supports it. But the following
1282 should work on the Alpha and on 32 bit machines. */
1284 fprintf_filtered (stream
, "0x%lx", (unsigned long) addr
);
1287 /* Ask user a y-or-n question and return 1 iff answer is yes.
1288 Takes three args which are given to printf to print the question.
1289 The first, a control string, should end in "? ".
1290 It should not say how to answer, because we do that. */
1294 query (const char *ctlstr
, ...)
1301 va_start (args
, ctlstr
);
1305 return query_hook (ctlstr
, args
);
1308 /* Automatically answer "yes" if input is not from a terminal. */
1309 if (!input_from_terminal_p ())
1314 wrap_here (""); /* Flush any buffered output */
1315 gdb_flush (gdb_stdout
);
1317 if (annotation_level
> 1)
1318 printf_filtered ("\n\032\032pre-query\n");
1320 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1321 printf_filtered ("(y or n) ");
1323 if (annotation_level
> 1)
1324 printf_filtered ("\n\032\032query\n");
1327 gdb_flush (gdb_stdout
);
1329 answer
= fgetc (stdin
);
1330 clearerr (stdin
); /* in case of C-d */
1331 if (answer
== EOF
) /* C-d */
1336 /* Eat rest of input line, to EOF or newline */
1340 ans2
= fgetc (stdin
);
1343 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1357 printf_filtered ("Please answer y or n.\n");
1360 if (annotation_level
> 1)
1361 printf_filtered ("\n\032\032post-query\n");
1366 /* Print an error message saying that we couldn't make sense of a
1367 \^mumble sequence in a string or character constant. START and END
1368 indicate a substring of some larger string that contains the
1369 erroneous backslash sequence, missing the initial backslash. */
1371 no_control_char_error (const char *start
, const char *end
)
1373 int len
= end
- start
;
1374 char *copy
= alloca (end
- start
+ 1);
1376 memcpy (copy
, start
, len
);
1379 error ("There is no control character `\\%s' in the `%s' character set.",
1380 copy
, target_charset ());
1383 /* Parse a C escape sequence. STRING_PTR points to a variable
1384 containing a pointer to the string to parse. That pointer
1385 should point to the character after the \. That pointer
1386 is updated past the characters we use. The value of the
1387 escape sequence is returned.
1389 A negative value means the sequence \ newline was seen,
1390 which is supposed to be equivalent to nothing at all.
1392 If \ is followed by a null character, we return a negative
1393 value and leave the string pointer pointing at the null character.
1395 If \ is followed by 000, we return 0 and leave the string pointer
1396 after the zeros. A value of 0 does not mean end of string. */
1399 parse_escape (char **string_ptr
)
1402 int c
= *(*string_ptr
)++;
1403 if (c_parse_backslash (c
, &target_char
))
1415 /* Remember where this escape sequence started, for reporting
1417 char *sequence_start_pos
= *string_ptr
- 1;
1419 c
= *(*string_ptr
)++;
1423 /* XXXCHARSET: What is `delete' in the host character set? */
1426 if (!host_char_to_target (c
, &target_char
))
1427 error ("There is no character corresponding to `Delete' "
1428 "in the target character set `%s'.", host_charset ());
1433 target_char
= parse_escape (string_ptr
);
1436 if (!host_char_to_target (c
, &target_char
))
1437 no_control_char_error (sequence_start_pos
, *string_ptr
);
1440 /* Now target_char is something like `c', and we want to find
1441 its control-character equivalent. */
1442 if (!target_char_to_control_char (target_char
, &target_char
))
1443 no_control_char_error (sequence_start_pos
, *string_ptr
);
1448 /* XXXCHARSET: we need to use isdigit and value-of-digit
1449 methods of the host character set here. */
1465 if (c
>= '0' && c
<= '7')
1479 if (!host_char_to_target (c
, &target_char
))
1481 ("The escape sequence `\%c' is equivalent to plain `%c', which"
1482 " has no equivalent\n" "in the `%s' character set.", c
, c
,
1488 /* Print the character C on STREAM as part of the contents of a literal
1489 string whose delimiter is QUOTER. Note that this routine should only
1490 be call for printing things which are independent of the language
1491 of the program being debugged. */
1494 printchar (int c
, void (*do_fputs
) (const char *, struct ui_file
*),
1495 void (*do_fprintf
) (struct ui_file
*, const char *, ...),
1496 struct ui_file
*stream
, int quoter
)
1499 c
&= 0xFF; /* Avoid sign bit follies */
1501 if (c
< 0x20 || /* Low control chars */
1502 (c
>= 0x7F && c
< 0xA0) || /* DEL, High controls */
1503 (sevenbit_strings
&& c
>= 0x80))
1504 { /* high order bit set */
1508 do_fputs ("\\n", stream
);
1511 do_fputs ("\\b", stream
);
1514 do_fputs ("\\t", stream
);
1517 do_fputs ("\\f", stream
);
1520 do_fputs ("\\r", stream
);
1523 do_fputs ("\\e", stream
);
1526 do_fputs ("\\a", stream
);
1529 do_fprintf (stream
, "\\%.3o", (unsigned int) c
);
1535 if (c
== '\\' || c
== quoter
)
1536 do_fputs ("\\", stream
);
1537 do_fprintf (stream
, "%c", c
);
1541 /* Print the character C on STREAM as part of the contents of a
1542 literal string whose delimiter is QUOTER. Note that these routines
1543 should only be call for printing things which are independent of
1544 the language of the program being debugged. */
1547 fputstr_filtered (const char *str
, int quoter
, struct ui_file
*stream
)
1550 printchar (*str
++, fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1554 fputstr_unfiltered (const char *str
, int quoter
, struct ui_file
*stream
)
1557 printchar (*str
++, fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1561 fputstrn_unfiltered (const char *str
, int n
, int quoter
,
1562 struct ui_file
*stream
)
1565 for (i
= 0; i
< n
; i
++)
1566 printchar (str
[i
], fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1570 /* Number of lines per page or UINT_MAX if paging is disabled. */
1571 static unsigned int lines_per_page
;
1573 /* Number of chars per line or UINT_MAX if line folding is disabled. */
1574 static unsigned int chars_per_line
;
1576 /* Current count of lines printed on this page, chars on this line. */
1577 static unsigned int lines_printed
, chars_printed
;
1579 /* Buffer and start column of buffered text, for doing smarter word-
1580 wrapping. When someone calls wrap_here(), we start buffering output
1581 that comes through fputs_filtered(). If we see a newline, we just
1582 spit it out and forget about the wrap_here(). If we see another
1583 wrap_here(), we spit it out and remember the newer one. If we see
1584 the end of the line, we spit out a newline, the indent, and then
1585 the buffered output. */
1587 /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which
1588 are waiting to be output (they have already been counted in chars_printed).
1589 When wrap_buffer[0] is null, the buffer is empty. */
1590 static char *wrap_buffer
;
1592 /* Pointer in wrap_buffer to the next character to fill. */
1593 static char *wrap_pointer
;
1595 /* String to indent by if the wrap occurs. Must not be NULL if wrap_column
1597 static char *wrap_indent
;
1599 /* Column number on the screen where wrap_buffer begins, or 0 if wrapping
1600 is not in effect. */
1601 static int wrap_column
;
1604 /* Inialize the number of lines per page and chars per line. */
1607 init_page_info (void)
1610 if (!tui_get_command_dimension (&chars_per_line
, &lines_per_page
))
1613 #if defined(__GO32__)
1614 lines_per_page
= ScreenRows ();
1615 chars_per_line
= ScreenCols ();
1619 /* Make sure Readline has initialized its terminal settings. */
1620 rl_reset_terminal (NULL
);
1622 /* Get the screen size from Readline. */
1623 rl_get_screen_size (&rows
, &cols
);
1624 lines_per_page
= rows
;
1625 chars_per_line
= cols
;
1627 /* Readline should have fetched the termcap entry for us. */
1628 if (tgetnum ("li") < 0 || getenv ("EMACS"))
1630 /* The number of lines per page is not mentioned in the
1631 terminal description. This probably means that paging is
1632 not useful (e.g. emacs shell window), so disable paging. */
1633 lines_per_page
= UINT_MAX
;
1636 /* FIXME: Get rid of this junk. */
1637 #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
1638 SIGWINCH_HANDLER (SIGWINCH
);
1641 /* If the output is not a terminal, don't paginate it. */
1642 if (!ui_file_isatty (gdb_stdout
))
1643 lines_per_page
= UINT_MAX
;
1651 /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */
1654 set_screen_size (void)
1656 int rows
= lines_per_page
;
1657 int cols
= chars_per_line
;
1663 rl_get_screen_size (NULL
, &cols
);
1665 /* Update Readline's idea of the terminal size. */
1666 rl_set_screen_size (rows
, cols
);
1669 /* Reinitialize WRAP_BUFFER according to the current value of
1675 if (chars_per_line
== 0)
1680 wrap_buffer
= (char *) xmalloc (chars_per_line
+ 2);
1681 wrap_buffer
[0] = '\0';
1684 wrap_buffer
= (char *) xrealloc (wrap_buffer
, chars_per_line
+ 2);
1685 wrap_pointer
= wrap_buffer
; /* Start it at the beginning. */
1689 set_width_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1696 set_height_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1701 /* Wait, so the user can read what's on the screen. Prompt the user
1702 to continue by pressing RETURN. */
1705 prompt_for_continue (void)
1708 char cont_prompt
[120];
1710 if (annotation_level
> 1)
1711 printf_unfiltered ("\n\032\032pre-prompt-for-continue\n");
1713 strcpy (cont_prompt
,
1714 "---Type <return> to continue, or q <return> to quit---");
1715 if (annotation_level
> 1)
1716 strcat (cont_prompt
, "\n\032\032prompt-for-continue\n");
1718 /* We must do this *before* we call gdb_readline, else it will eventually
1719 call us -- thinking that we're trying to print beyond the end of the
1721 reinitialize_more_filter ();
1724 /* On a real operating system, the user can quit with SIGINT.
1727 'q' is provided on all systems so users don't have to change habits
1728 from system to system, and because telling them what to do in
1729 the prompt is more user-friendly than expecting them to think of
1731 /* Call readline, not gdb_readline, because GO32 readline handles control-C
1732 whereas control-C to gdb_readline will cause the user to get dumped
1734 ignore
= gdb_readline_wrapper (cont_prompt
);
1736 if (annotation_level
> 1)
1737 printf_unfiltered ("\n\032\032post-prompt-for-continue\n");
1742 while (*p
== ' ' || *p
== '\t')
1747 request_quit (SIGINT
);
1749 async_request_quit (0);
1755 /* Now we have to do this again, so that GDB will know that it doesn't
1756 need to save the ---Type <return>--- line at the top of the screen. */
1757 reinitialize_more_filter ();
1759 dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */
1762 /* Reinitialize filter; ie. tell it to reset to original values. */
1765 reinitialize_more_filter (void)
1771 /* Indicate that if the next sequence of characters overflows the line,
1772 a newline should be inserted here rather than when it hits the end.
1773 If INDENT is non-null, it is a string to be printed to indent the
1774 wrapped part on the next line. INDENT must remain accessible until
1775 the next call to wrap_here() or until a newline is printed through
1778 If the line is already overfull, we immediately print a newline and
1779 the indentation, and disable further wrapping.
1781 If we don't know the width of lines, but we know the page height,
1782 we must not wrap words, but should still keep track of newlines
1783 that were explicitly printed.
1785 INDENT should not contain tabs, as that will mess up the char count
1786 on the next line. FIXME.
1788 This routine is guaranteed to force out any output which has been
1789 squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be
1790 used to force out output from the wrap_buffer. */
1793 wrap_here (char *indent
)
1795 /* This should have been allocated, but be paranoid anyway. */
1797 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
1801 *wrap_pointer
= '\0';
1802 fputs_unfiltered (wrap_buffer
, gdb_stdout
);
1804 wrap_pointer
= wrap_buffer
;
1805 wrap_buffer
[0] = '\0';
1806 if (chars_per_line
== UINT_MAX
) /* No line overflow checking */
1810 else if (chars_printed
>= chars_per_line
)
1812 puts_filtered ("\n");
1814 puts_filtered (indent
);
1819 wrap_column
= chars_printed
;
1823 wrap_indent
= indent
;
1827 /* Print input string to gdb_stdout, filtered, with wrap,
1828 arranging strings in columns of n chars. String can be
1829 right or left justified in the column. Never prints
1830 trailing spaces. String should never be longer than
1831 width. FIXME: this could be useful for the EXAMINE
1832 command, which currently doesn't tabulate very well */
1835 puts_filtered_tabular (char *string
, int width
, int right
)
1841 gdb_assert (chars_per_line
> 0);
1842 if (chars_per_line
== UINT_MAX
)
1844 fputs_filtered (string
, gdb_stdout
);
1845 fputs_filtered ("\n", gdb_stdout
);
1849 if (((chars_printed
- 1) / width
+ 2) * width
>= chars_per_line
)
1850 fputs_filtered ("\n", gdb_stdout
);
1852 if (width
>= chars_per_line
)
1853 width
= chars_per_line
- 1;
1855 stringlen
= strlen (string
);
1857 if (chars_printed
> 0)
1858 spaces
= width
- (chars_printed
- 1) % width
- 1;
1860 spaces
+= width
- stringlen
;
1862 spacebuf
= alloca (spaces
+ 1);
1863 spacebuf
[spaces
] = '\0';
1865 spacebuf
[spaces
] = ' ';
1867 fputs_filtered (spacebuf
, gdb_stdout
);
1868 fputs_filtered (string
, gdb_stdout
);
1872 /* Ensure that whatever gets printed next, using the filtered output
1873 commands, starts at the beginning of the line. I.E. if there is
1874 any pending output for the current line, flush it and start a new
1875 line. Otherwise do nothing. */
1880 if (chars_printed
> 0)
1882 puts_filtered ("\n");
1887 /* Like fputs but if FILTER is true, pause after every screenful.
1889 Regardless of FILTER can wrap at points other than the final
1890 character of a line.
1892 Unlike fputs, fputs_maybe_filtered does not return a value.
1893 It is OK for LINEBUFFER to be NULL, in which case just don't print
1896 Note that a longjmp to top level may occur in this routine (only if
1897 FILTER is true) (since prompt_for_continue may do so) so this
1898 routine should not be called when cleanups are not in place. */
1901 fputs_maybe_filtered (const char *linebuffer
, struct ui_file
*stream
,
1904 const char *lineptr
;
1906 if (linebuffer
== 0)
1909 /* Don't do any filtering if it is disabled. */
1910 if ((stream
!= gdb_stdout
) || !pagination_enabled
1911 || (lines_per_page
== UINT_MAX
&& chars_per_line
== UINT_MAX
))
1913 fputs_unfiltered (linebuffer
, stream
);
1917 /* Go through and output each character. Show line extension
1918 when this is necessary; prompt user for new page when this is
1921 lineptr
= linebuffer
;
1924 /* Possible new page. */
1925 if (filter
&& (lines_printed
>= lines_per_page
- 1))
1926 prompt_for_continue ();
1928 while (*lineptr
&& *lineptr
!= '\n')
1930 /* Print a single line. */
1931 if (*lineptr
== '\t')
1934 *wrap_pointer
++ = '\t';
1936 fputc_unfiltered ('\t', stream
);
1937 /* Shifting right by 3 produces the number of tab stops
1938 we have already passed, and then adding one and
1939 shifting left 3 advances to the next tab stop. */
1940 chars_printed
= ((chars_printed
>> 3) + 1) << 3;
1946 *wrap_pointer
++ = *lineptr
;
1948 fputc_unfiltered (*lineptr
, stream
);
1953 if (chars_printed
>= chars_per_line
)
1955 unsigned int save_chars
= chars_printed
;
1959 /* If we aren't actually wrapping, don't output newline --
1960 if chars_per_line is right, we probably just overflowed
1961 anyway; if it's wrong, let us keep going. */
1963 fputc_unfiltered ('\n', stream
);
1965 /* Possible new page. */
1966 if (lines_printed
>= lines_per_page
- 1)
1967 prompt_for_continue ();
1969 /* Now output indentation and wrapped string */
1972 fputs_unfiltered (wrap_indent
, stream
);
1973 *wrap_pointer
= '\0'; /* Null-terminate saved stuff */
1974 fputs_unfiltered (wrap_buffer
, stream
); /* and eject it */
1975 /* FIXME, this strlen is what prevents wrap_indent from
1976 containing tabs. However, if we recurse to print it
1977 and count its chars, we risk trouble if wrap_indent is
1978 longer than (the user settable) chars_per_line.
1979 Note also that this can set chars_printed > chars_per_line
1980 if we are printing a long string. */
1981 chars_printed
= strlen (wrap_indent
)
1982 + (save_chars
- wrap_column
);
1983 wrap_pointer
= wrap_buffer
; /* Reset buffer */
1984 wrap_buffer
[0] = '\0';
1985 wrap_column
= 0; /* And disable fancy wrap */
1990 if (*lineptr
== '\n')
1993 wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */
1995 fputc_unfiltered ('\n', stream
);
2002 fputs_filtered (const char *linebuffer
, struct ui_file
*stream
)
2004 fputs_maybe_filtered (linebuffer
, stream
, 1);
2008 putchar_unfiltered (int c
)
2011 ui_file_write (gdb_stdout
, &buf
, 1);
2015 /* Write character C to gdb_stdout using GDB's paging mechanism and return C.
2016 May return nonlocally. */
2019 putchar_filtered (int c
)
2021 return fputc_filtered (c
, gdb_stdout
);
2025 fputc_unfiltered (int c
, struct ui_file
*stream
)
2028 ui_file_write (stream
, &buf
, 1);
2033 fputc_filtered (int c
, struct ui_file
*stream
)
2039 fputs_filtered (buf
, stream
);
2043 /* puts_debug is like fputs_unfiltered, except it prints special
2044 characters in printable fashion. */
2047 puts_debug (char *prefix
, char *string
, char *suffix
)
2051 /* Print prefix and suffix after each line. */
2052 static int new_line
= 1;
2053 static int return_p
= 0;
2054 static char *prev_prefix
= "";
2055 static char *prev_suffix
= "";
2057 if (*string
== '\n')
2060 /* If the prefix is changing, print the previous suffix, a new line,
2061 and the new prefix. */
2062 if ((return_p
|| (strcmp (prev_prefix
, prefix
) != 0)) && !new_line
)
2064 fputs_unfiltered (prev_suffix
, gdb_stdlog
);
2065 fputs_unfiltered ("\n", gdb_stdlog
);
2066 fputs_unfiltered (prefix
, gdb_stdlog
);
2069 /* Print prefix if we printed a newline during the previous call. */
2073 fputs_unfiltered (prefix
, gdb_stdlog
);
2076 prev_prefix
= prefix
;
2077 prev_suffix
= suffix
;
2079 /* Output characters in a printable format. */
2080 while ((ch
= *string
++) != '\0')
2086 fputc_unfiltered (ch
, gdb_stdlog
);
2089 fprintf_unfiltered (gdb_stdlog
, "\\x%02x", ch
& 0xff);
2093 fputs_unfiltered ("\\\\", gdb_stdlog
);
2096 fputs_unfiltered ("\\b", gdb_stdlog
);
2099 fputs_unfiltered ("\\f", gdb_stdlog
);
2103 fputs_unfiltered ("\\n", gdb_stdlog
);
2106 fputs_unfiltered ("\\r", gdb_stdlog
);
2109 fputs_unfiltered ("\\t", gdb_stdlog
);
2112 fputs_unfiltered ("\\v", gdb_stdlog
);
2116 return_p
= ch
== '\r';
2119 /* Print suffix if we printed a newline. */
2122 fputs_unfiltered (suffix
, gdb_stdlog
);
2123 fputs_unfiltered ("\n", gdb_stdlog
);
2128 /* Print a variable number of ARGS using format FORMAT. If this
2129 information is going to put the amount written (since the last call
2130 to REINITIALIZE_MORE_FILTER or the last page break) over the page size,
2131 call prompt_for_continue to get the users permision to continue.
2133 Unlike fprintf, this function does not return a value.
2135 We implement three variants, vfprintf (takes a vararg list and stream),
2136 fprintf (takes a stream to write on), and printf (the usual).
2138 Note also that a longjmp to top level may occur in this routine
2139 (since prompt_for_continue may do so) so this routine should not be
2140 called when cleanups are not in place. */
2143 vfprintf_maybe_filtered (struct ui_file
*stream
, const char *format
,
2144 va_list args
, int filter
)
2147 struct cleanup
*old_cleanups
;
2149 xvasprintf (&linebuffer
, format
, args
);
2150 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2151 fputs_maybe_filtered (linebuffer
, stream
, filter
);
2152 do_cleanups (old_cleanups
);
2157 vfprintf_filtered (struct ui_file
*stream
, const char *format
, va_list args
)
2159 vfprintf_maybe_filtered (stream
, format
, args
, 1);
2163 vfprintf_unfiltered (struct ui_file
*stream
, const char *format
, va_list args
)
2166 struct cleanup
*old_cleanups
;
2168 xvasprintf (&linebuffer
, format
, args
);
2169 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2170 fputs_unfiltered (linebuffer
, stream
);
2171 do_cleanups (old_cleanups
);
2175 vprintf_filtered (const char *format
, va_list args
)
2177 vfprintf_maybe_filtered (gdb_stdout
, format
, args
, 1);
2181 vprintf_unfiltered (const char *format
, va_list args
)
2183 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2187 fprintf_filtered (struct ui_file
*stream
, const char *format
, ...)
2190 va_start (args
, format
);
2191 vfprintf_filtered (stream
, format
, args
);
2196 fprintf_unfiltered (struct ui_file
*stream
, const char *format
, ...)
2199 va_start (args
, format
);
2200 vfprintf_unfiltered (stream
, format
, args
);
2204 /* Like fprintf_filtered, but prints its result indented.
2205 Called as fprintfi_filtered (spaces, stream, format, ...); */
2208 fprintfi_filtered (int spaces
, struct ui_file
*stream
, const char *format
,
2212 va_start (args
, format
);
2213 print_spaces_filtered (spaces
, stream
);
2215 vfprintf_filtered (stream
, format
, args
);
2221 printf_filtered (const char *format
, ...)
2224 va_start (args
, format
);
2225 vfprintf_filtered (gdb_stdout
, format
, args
);
2231 printf_unfiltered (const char *format
, ...)
2234 va_start (args
, format
);
2235 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2239 /* Like printf_filtered, but prints it's result indented.
2240 Called as printfi_filtered (spaces, format, ...); */
2243 printfi_filtered (int spaces
, const char *format
, ...)
2246 va_start (args
, format
);
2247 print_spaces_filtered (spaces
, gdb_stdout
);
2248 vfprintf_filtered (gdb_stdout
, format
, args
);
2252 /* Easy -- but watch out!
2254 This routine is *not* a replacement for puts()! puts() appends a newline.
2255 This one doesn't, and had better not! */
2258 puts_filtered (const char *string
)
2260 fputs_filtered (string
, gdb_stdout
);
2264 puts_unfiltered (const char *string
)
2266 fputs_unfiltered (string
, gdb_stdout
);
2269 /* Return a pointer to N spaces and a null. The pointer is good
2270 until the next call to here. */
2275 static char *spaces
= 0;
2276 static int max_spaces
= -1;
2282 spaces
= (char *) xmalloc (n
+ 1);
2283 for (t
= spaces
+ n
; t
!= spaces
;)
2289 return spaces
+ max_spaces
- n
;
2292 /* Print N spaces. */
2294 print_spaces_filtered (int n
, struct ui_file
*stream
)
2296 fputs_filtered (n_spaces (n
), stream
);
2299 /* C++/ObjC demangler stuff. */
2301 /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language
2302 LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
2303 If the name is not mangled, or the language for the name is unknown, or
2304 demangling is off, the name is printed in its "raw" form. */
2307 fprintf_symbol_filtered (struct ui_file
*stream
, char *name
,
2308 enum language lang
, int arg_mode
)
2314 /* If user wants to see raw output, no problem. */
2317 fputs_filtered (name
, stream
);
2321 demangled
= language_demangle (language_def (lang
), name
, arg_mode
);
2322 fputs_filtered (demangled
? demangled
: name
, stream
);
2323 if (demangled
!= NULL
)
2331 /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any
2332 differences in whitespace. Returns 0 if they match, non-zero if they
2333 don't (slightly different than strcmp()'s range of return values).
2335 As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO".
2336 This "feature" is useful when searching for matching C++ function names
2337 (such as if the user types 'break FOO', where FOO is a mangled C++
2341 strcmp_iw (const char *string1
, const char *string2
)
2343 while ((*string1
!= '\0') && (*string2
!= '\0'))
2345 while (isspace (*string1
))
2349 while (isspace (*string2
))
2353 if (*string1
!= *string2
)
2357 if (*string1
!= '\0')
2363 return (*string1
!= '\0' && *string1
!= '(') || (*string2
!= '\0');
2366 /* This is like strcmp except that it ignores whitespace and treats
2367 '(' as the first non-NULL character in terms of ordering. Like
2368 strcmp (and unlike strcmp_iw), it returns negative if STRING1 <
2369 STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2
2370 according to that ordering.
2372 If a list is sorted according to this function and if you want to
2373 find names in the list that match some fixed NAME according to
2374 strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
2375 where this function would put NAME.
2377 Here are some examples of why using strcmp to sort is a bad idea:
2381 Say your partial symtab contains: "foo<char *>", "goo". Then, if
2382 we try to do a search for "foo<char*>", strcmp will locate this
2383 after "foo<char *>" and before "goo". Then lookup_partial_symbol
2384 will start looking at strings beginning with "goo", and will never
2385 see the correct match of "foo<char *>".
2387 Parenthesis example:
2389 In practice, this is less like to be an issue, but I'll give it a
2390 shot. Let's assume that '$' is a legitimate character to occur in
2391 symbols. (Which may well even be the case on some systems.) Then
2392 say that the partial symbol table contains "foo$" and "foo(int)".
2393 strcmp will put them in this order, since '$' < '('. Now, if the
2394 user searches for "foo", then strcmp will sort "foo" before "foo$".
2395 Then lookup_partial_symbol will notice that strcmp_iw("foo$",
2396 "foo") is false, so it won't proceed to the actual match of
2397 "foo(int)" with "foo". */
2400 strcmp_iw_ordered (const char *string1
, const char *string2
)
2402 while ((*string1
!= '\0') && (*string2
!= '\0'))
2404 while (isspace (*string1
))
2408 while (isspace (*string2
))
2412 if (*string1
!= *string2
)
2416 if (*string1
!= '\0')
2425 /* Characters are non-equal unless they're both '\0'; we want to
2426 make sure we get the comparison right according to our
2427 comparison in the cases where one of them is '\0' or '('. */
2429 if (*string2
== '\0')
2434 if (*string2
== '\0')
2439 if (*string2
== '(')
2442 return *string1
- *string2
;
2446 /* A simple comparison function with opposite semantics to strcmp. */
2449 streq (const char *lhs
, const char *rhs
)
2451 return !strcmp (lhs
, rhs
);
2457 ** Answer whether string_to_compare is a full or partial match to
2458 ** template_string. The partial match must be in sequence starting
2462 subset_compare (char *string_to_compare
, char *template_string
)
2465 if (template_string
!= (char *) NULL
&& string_to_compare
!= (char *) NULL
2466 && strlen (string_to_compare
) <= strlen (template_string
))
2469 (template_string
, string_to_compare
, strlen (string_to_compare
)) == 0);
2476 static void pagination_on_command (char *arg
, int from_tty
);
2478 pagination_on_command (char *arg
, int from_tty
)
2480 pagination_enabled
= 1;
2483 static void pagination_on_command (char *arg
, int from_tty
);
2485 pagination_off_command (char *arg
, int from_tty
)
2487 pagination_enabled
= 0;
2492 initialize_utils (void)
2494 struct cmd_list_element
*c
;
2496 c
= add_set_cmd ("width", class_support
, var_uinteger
, &chars_per_line
,
2497 "Set number of characters gdb thinks are in a line.",
2499 add_show_from_set (c
, &showlist
);
2500 set_cmd_sfunc (c
, set_width_command
);
2502 c
= add_set_cmd ("height", class_support
, var_uinteger
, &lines_per_page
,
2503 "Set number of lines gdb thinks are in a page.", &setlist
);
2504 add_show_from_set (c
, &showlist
);
2505 set_cmd_sfunc (c
, set_height_command
);
2510 (add_set_cmd ("demangle", class_support
, var_boolean
,
2512 "Set demangling of encoded C++/ObjC names when displaying symbols.",
2513 &setprintlist
), &showprintlist
);
2516 (add_set_cmd ("pagination", class_support
,
2517 var_boolean
, (char *) &pagination_enabled
,
2518 "Set state of pagination.", &setlist
), &showlist
);
2522 add_com ("am", class_support
, pagination_on_command
,
2523 "Enable pagination");
2524 add_com ("sm", class_support
, pagination_off_command
,
2525 "Disable pagination");
2529 (add_set_cmd ("sevenbit-strings", class_support
, var_boolean
,
2530 (char *) &sevenbit_strings
,
2531 "Set printing of 8-bit characters in strings as \\nnn.",
2532 &setprintlist
), &showprintlist
);
2535 (add_set_cmd ("asm-demangle", class_support
, var_boolean
,
2536 (char *) &asm_demangle
,
2537 "Set demangling of C++/ObjC names in disassembly listings.",
2538 &setprintlist
), &showprintlist
);
2541 /* Machine specific function to handle SIGWINCH signal. */
2543 #ifdef SIGWINCH_HANDLER_BODY
2544 SIGWINCH_HANDLER_BODY
2546 /* print routines to handle variable size regs, etc. */
2547 /* temporary storage using circular buffer */
2553 static char buf
[NUMCELLS
][CELLSIZE
];
2554 static int cell
= 0;
2555 if (++cell
>= NUMCELLS
)
2563 return (TARGET_ADDR_BIT
/ 8 * 2);
2567 paddr (CORE_ADDR addr
)
2569 return phex (addr
, TARGET_ADDR_BIT
/ 8);
2573 paddr_nz (CORE_ADDR addr
)
2575 return phex_nz (addr
, TARGET_ADDR_BIT
/ 8);
2579 decimal2str (char *paddr_str
, char *sign
, ULONGEST addr
)
2581 /* steal code from valprint.c:print_decimal(). Should this worry
2582 about the real size of addr as the above does? */
2583 unsigned long temp
[3];
2587 temp
[i
] = addr
% (1000 * 1000 * 1000);
2588 addr
/= (1000 * 1000 * 1000);
2591 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2595 sprintf (paddr_str
, "%s%lu", sign
, temp
[0]);
2598 sprintf (paddr_str
, "%s%lu%09lu", sign
, temp
[1], temp
[0]);
2601 sprintf (paddr_str
, "%s%lu%09lu%09lu", sign
, temp
[2], temp
[1], temp
[0]);
2604 internal_error (__FILE__
, __LINE__
,
2605 "failed internal consistency check");
2610 paddr_u (CORE_ADDR addr
)
2612 char *paddr_str
= get_cell ();
2613 decimal2str (paddr_str
, "", addr
);
2618 paddr_d (LONGEST addr
)
2620 char *paddr_str
= get_cell ();
2622 decimal2str (paddr_str
, "-", -addr
);
2624 decimal2str (paddr_str
, "", addr
);
2628 /* eliminate warning from compiler on 32-bit systems */
2629 static int thirty_two
= 32;
2632 phex (ULONGEST l
, int sizeof_l
)
2639 sprintf (str
, "%08lx%08lx",
2640 (unsigned long) (l
>> thirty_two
),
2641 (unsigned long) (l
& 0xffffffff));
2645 sprintf (str
, "%08lx", (unsigned long) l
);
2649 sprintf (str
, "%04x", (unsigned short) (l
& 0xffff));
2652 str
= phex (l
, sizeof (l
));
2659 phex_nz (ULONGEST l
, int sizeof_l
)
2666 unsigned long high
= (unsigned long) (l
>> thirty_two
);
2669 sprintf (str
, "%lx", (unsigned long) (l
& 0xffffffff));
2671 sprintf (str
, "%lx%08lx", high
, (unsigned long) (l
& 0xffffffff));
2676 sprintf (str
, "%lx", (unsigned long) l
);
2680 sprintf (str
, "%x", (unsigned short) (l
& 0xffff));
2683 str
= phex_nz (l
, sizeof (l
));
2690 /* Convert a CORE_ADDR into a string. */
2692 core_addr_to_string (const CORE_ADDR addr
)
2694 char *str
= get_cell ();
2696 strcat (str
, phex (addr
, sizeof (addr
)));
2701 core_addr_to_string_nz (const CORE_ADDR addr
)
2703 char *str
= get_cell ();
2705 strcat (str
, phex_nz (addr
, sizeof (addr
)));
2709 /* Convert a string back into a CORE_ADDR. */
2711 string_to_core_addr (const char *my_string
)
2714 if (my_string
[0] == '0' && tolower (my_string
[1]) == 'x')
2716 /* Assume that it is in decimal. */
2718 for (i
= 2; my_string
[i
] != '\0'; i
++)
2720 if (isdigit (my_string
[i
]))
2721 addr
= (my_string
[i
] - '0') + (addr
* 16);
2722 else if (isxdigit (my_string
[i
]))
2723 addr
= (tolower (my_string
[i
]) - 'a' + 0xa) + (addr
* 16);
2725 internal_error (__FILE__
, __LINE__
, "invalid hex");
2730 /* Assume that it is in decimal. */
2732 for (i
= 0; my_string
[i
] != '\0'; i
++)
2734 if (isdigit (my_string
[i
]))
2735 addr
= (my_string
[i
] - '0') + (addr
* 10);
2737 internal_error (__FILE__
, __LINE__
, "invalid decimal");
2744 gdb_realpath (const char *filename
)
2746 /* Method 1: The system has a compile time upper bound on a filename
2747 path. Use that and realpath() to canonicalize the name. This is
2748 the most common case. Note that, if there isn't a compile time
2749 upper bound, you want to avoid realpath() at all costs. */
2750 #if defined(HAVE_REALPATH)
2752 # if defined (PATH_MAX)
2754 # define USE_REALPATH
2755 # elif defined (MAXPATHLEN)
2756 char buf
[MAXPATHLEN
];
2757 # define USE_REALPATH
2759 # if defined (USE_REALPATH)
2760 const char *rp
= realpath (filename
, buf
);
2763 return xstrdup (rp
);
2766 #endif /* HAVE_REALPATH */
2768 /* Method 2: The host system (i.e., GNU) has the function
2769 canonicalize_file_name() which malloc's a chunk of memory and
2770 returns that, use that. */
2771 #if defined(HAVE_CANONICALIZE_FILE_NAME)
2773 char *rp
= canonicalize_file_name (filename
);
2775 return xstrdup (filename
);
2781 /* FIXME: cagney/2002-11-13:
2783 Method 2a: Use realpath() with a NULL buffer. Some systems, due
2784 to the problems described in in method 3, have modified their
2785 realpath() implementation so that it will allocate a buffer when
2786 NULL is passed in. Before this can be used, though, some sort of
2787 configure time test would need to be added. Otherwize the code
2788 will likely core dump. */
2790 /* Method 3: Now we're getting desperate! The system doesn't have a
2791 compile time buffer size and no alternative function. Query the
2792 OS, using pathconf(), for the buffer limit. Care is needed
2793 though, some systems do not limit PATH_MAX (return -1 for
2794 pathconf()) making it impossible to pass a correctly sized buffer
2795 to realpath() (it could always overflow). On those systems, we
2797 #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
2799 /* Find out the max path size. */
2800 long path_max
= pathconf ("/", _PC_PATH_MAX
);
2803 /* PATH_MAX is bounded. */
2804 char *buf
= alloca (path_max
);
2805 char *rp
= realpath (filename
, buf
);
2806 return xstrdup (rp
? rp
: filename
);
2811 /* This system is a lost cause, just dup the buffer. */
2812 return xstrdup (filename
);
2815 /* Return a copy of FILENAME, with its directory prefix canonicalized
2819 xfullpath (const char *filename
)
2821 const char *base_name
= lbasename (filename
);
2826 /* Extract the basename of filename, and return immediately
2827 a copy of filename if it does not contain any directory prefix. */
2828 if (base_name
== filename
)
2829 return xstrdup (filename
);
2831 dir_name
= alloca ((size_t) (base_name
- filename
+ 2));
2832 /* Allocate enough space to store the dir_name + plus one extra
2833 character sometimes needed under Windows (see below), and
2834 then the closing \000 character */
2835 strncpy (dir_name
, filename
, base_name
- filename
);
2836 dir_name
[base_name
- filename
] = '\000';
2838 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2839 /* We need to be careful when filename is of the form 'd:foo', which
2840 is equivalent of d:./foo, which is totally different from d:/foo. */
2841 if (strlen (dir_name
) == 2 && isalpha (dir_name
[0]) && dir_name
[1] == ':')
2844 dir_name
[3] = '\000';
2848 /* Canonicalize the directory prefix, and build the resulting
2849 filename. If the dirname realpath already contains an ending
2850 directory separator, avoid doubling it. */
2851 real_path
= gdb_realpath (dir_name
);
2852 if (IS_DIR_SEPARATOR (real_path
[strlen (real_path
) - 1]))
2853 result
= concat (real_path
, base_name
, NULL
);
2855 result
= concat (real_path
, SLASH_STRING
, base_name
, NULL
);
2862 /* This is the 32-bit CRC function used by the GNU separate debug
2863 facility. An executable may contain a section named
2864 .gnu_debuglink, which holds the name of a separate executable file
2865 containing its debug info, and a checksum of that file's contents,
2866 computed using this function. */
2868 gnu_debuglink_crc32 (unsigned long crc
, unsigned char *buf
, size_t len
)
2870 static const unsigned long crc32_table
[256] = {
2871 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
2872 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
2873 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
2874 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
2875 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
2876 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
2877 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
2878 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
2879 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
2880 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
2881 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
2882 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
2883 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
2884 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
2885 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
2886 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
2887 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
2888 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
2889 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
2890 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
2891 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
2892 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
2893 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
2894 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
2895 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
2896 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
2897 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
2898 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
2899 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
2900 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
2901 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
2902 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
2903 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
2904 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
2905 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
2906 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
2907 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
2908 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
2909 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
2910 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
2911 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
2912 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
2913 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
2914 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
2915 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
2916 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
2917 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
2918 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
2919 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
2920 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
2921 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
2926 crc
= ~crc
& 0xffffffff;
2927 for (end
= buf
+ len
; buf
< end
; ++buf
)
2928 crc
= crc32_table
[(crc
^ *buf
) & 0xff] ^ (crc
>> 8);
2929 return ~crc
& 0xffffffff;;
2933 align_up (ULONGEST v
, int n
)
2935 /* Check that N is really a power of two. */
2936 gdb_assert (n
&& (n
& (n
-1)) == 0);
2937 return (v
+ n
- 1) & -n
;
2941 align_down (ULONGEST v
, int n
)
2943 /* Check that N is really a power of two. */
2944 gdb_assert (n
&& (n
& (n
-1)) == 0);