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 #if defined (USE_MMALLOC) && !defined (NO_MMCHECK)
100 static void malloc_botch (void);
103 static void prompt_for_continue (void);
105 static void set_screen_size (void);
106 static void set_width (void);
108 /* Chain of cleanup actions established with make_cleanup,
109 to be executed if an error happens. */
111 static struct cleanup
*cleanup_chain
; /* cleaned up after a failed command */
112 static struct cleanup
*final_cleanup_chain
; /* cleaned up when gdb exits */
113 static struct cleanup
*run_cleanup_chain
; /* cleaned up on each 'run' */
114 static struct cleanup
*exec_cleanup_chain
; /* cleaned up on each execution command */
115 /* cleaned up on each error from within an execution command */
116 static struct cleanup
*exec_error_cleanup_chain
;
118 /* Pointer to what is left to do for an execution command after the
119 target stops. Used only in asynchronous mode, by targets that
120 support async execution. The finish and until commands use it. So
121 does the target extended-remote command. */
122 struct continuation
*cmd_continuation
;
123 struct continuation
*intermediate_continuation
;
125 /* Nonzero if we have job control. */
129 /* Nonzero means a quit has been requested. */
133 /* Nonzero means quit immediately if Control-C is typed now, rather
134 than waiting until QUIT is executed. Be careful in setting this;
135 code which executes with immediate_quit set has to be very careful
136 about being able to deal with being interrupted at any time. It is
137 almost always better to use QUIT; the only exception I can think of
138 is being able to quit out of a system call (using EINTR loses if
139 the SIGINT happens between the previous QUIT and the system call).
140 To immediately quit in the case in which a SIGINT happens between
141 the previous QUIT and setting immediate_quit (desirable anytime we
142 expect to block), call QUIT after setting immediate_quit. */
146 /* Nonzero means that encoded C++/ObjC names should be printed out in their
147 C++/ObjC form rather than raw. */
151 /* Nonzero means that encoded C++/ObjC names should be printed out in their
152 C++/ObjC form even in assembler language displays. If this is set, but
153 DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */
155 int asm_demangle
= 0;
157 /* Nonzero means that strings with character values >0x7F should be printed
158 as octal escapes. Zero means just print the value (e.g. it's an
159 international character, and the terminal or window can cope.) */
161 int sevenbit_strings
= 0;
163 /* String to be printed before error messages, if any. */
165 char *error_pre_print
;
167 /* String to be printed before quit messages, if any. */
169 char *quit_pre_print
;
171 /* String to be printed before warning messages, if any. */
173 char *warning_pre_print
= "\nwarning: ";
175 int pagination_enabled
= 1;
178 /* Add a new cleanup to the cleanup_chain,
179 and return the previous chain pointer
180 to be passed later to do_cleanups or discard_cleanups.
181 Args are FUNCTION to clean up with, and ARG to pass to it. */
184 make_cleanup (make_cleanup_ftype
*function
, void *arg
)
186 return make_my_cleanup (&cleanup_chain
, function
, arg
);
190 make_final_cleanup (make_cleanup_ftype
*function
, void *arg
)
192 return make_my_cleanup (&final_cleanup_chain
, function
, arg
);
196 make_run_cleanup (make_cleanup_ftype
*function
, void *arg
)
198 return make_my_cleanup (&run_cleanup_chain
, function
, arg
);
202 make_exec_cleanup (make_cleanup_ftype
*function
, void *arg
)
204 return make_my_cleanup (&exec_cleanup_chain
, function
, arg
);
208 make_exec_error_cleanup (make_cleanup_ftype
*function
, void *arg
)
210 return make_my_cleanup (&exec_error_cleanup_chain
, function
, arg
);
214 do_freeargv (void *arg
)
216 freeargv ((char **) arg
);
220 make_cleanup_freeargv (char **arg
)
222 return make_my_cleanup (&cleanup_chain
, do_freeargv
, arg
);
226 do_bfd_close_cleanup (void *arg
)
232 make_cleanup_bfd_close (bfd
*abfd
)
234 return make_cleanup (do_bfd_close_cleanup
, abfd
);
238 do_close_cleanup (void *arg
)
246 make_cleanup_close (int fd
)
248 int *saved_fd
= xmalloc (sizeof (fd
));
250 return make_cleanup (do_close_cleanup
, saved_fd
);
254 do_ui_file_delete (void *arg
)
256 ui_file_delete (arg
);
260 make_cleanup_ui_file_delete (struct ui_file
*arg
)
262 return make_my_cleanup (&cleanup_chain
, do_ui_file_delete
, arg
);
266 make_my_cleanup (struct cleanup
**pmy_chain
, make_cleanup_ftype
*function
,
270 = (struct cleanup
*) xmalloc (sizeof (struct cleanup
));
271 struct cleanup
*old_chain
= *pmy_chain
;
273 new->next
= *pmy_chain
;
274 new->function
= function
;
281 /* Discard cleanups and do the actions they describe
282 until we get back to the point OLD_CHAIN in the cleanup_chain. */
285 do_cleanups (struct cleanup
*old_chain
)
287 do_my_cleanups (&cleanup_chain
, old_chain
);
291 do_final_cleanups (struct cleanup
*old_chain
)
293 do_my_cleanups (&final_cleanup_chain
, old_chain
);
297 do_run_cleanups (struct cleanup
*old_chain
)
299 do_my_cleanups (&run_cleanup_chain
, old_chain
);
303 do_exec_cleanups (struct cleanup
*old_chain
)
305 do_my_cleanups (&exec_cleanup_chain
, old_chain
);
309 do_exec_error_cleanups (struct cleanup
*old_chain
)
311 do_my_cleanups (&exec_error_cleanup_chain
, old_chain
);
315 do_my_cleanups (struct cleanup
**pmy_chain
,
316 struct cleanup
*old_chain
)
319 while ((ptr
= *pmy_chain
) != old_chain
)
321 *pmy_chain
= ptr
->next
; /* Do this first incase recursion */
322 (*ptr
->function
) (ptr
->arg
);
327 /* Discard cleanups, not doing the actions they describe,
328 until we get back to the point OLD_CHAIN in the cleanup_chain. */
331 discard_cleanups (struct cleanup
*old_chain
)
333 discard_my_cleanups (&cleanup_chain
, old_chain
);
337 discard_final_cleanups (struct cleanup
*old_chain
)
339 discard_my_cleanups (&final_cleanup_chain
, old_chain
);
343 discard_exec_error_cleanups (struct cleanup
*old_chain
)
345 discard_my_cleanups (&exec_error_cleanup_chain
, old_chain
);
349 discard_my_cleanups (struct cleanup
**pmy_chain
,
350 struct cleanup
*old_chain
)
353 while ((ptr
= *pmy_chain
) != old_chain
)
355 *pmy_chain
= ptr
->next
;
360 /* Set the cleanup_chain to 0, and return the old cleanup chain. */
364 return save_my_cleanups (&cleanup_chain
);
368 save_final_cleanups (void)
370 return save_my_cleanups (&final_cleanup_chain
);
374 save_my_cleanups (struct cleanup
**pmy_chain
)
376 struct cleanup
*old_chain
= *pmy_chain
;
382 /* Restore the cleanup chain from a previously saved chain. */
384 restore_cleanups (struct cleanup
*chain
)
386 restore_my_cleanups (&cleanup_chain
, chain
);
390 restore_final_cleanups (struct cleanup
*chain
)
392 restore_my_cleanups (&final_cleanup_chain
, chain
);
396 restore_my_cleanups (struct cleanup
**pmy_chain
, struct cleanup
*chain
)
401 /* This function is useful for cleanups.
405 old_chain = make_cleanup (free_current_contents, &foo);
407 to arrange to free the object thus allocated. */
410 free_current_contents (void *ptr
)
412 void **location
= ptr
;
413 if (location
== NULL
)
414 internal_error (__FILE__
, __LINE__
,
415 "free_current_contents: NULL pointer");
416 if (*location
!= NULL
)
423 /* Provide a known function that does nothing, to use as a base for
424 for a possibly long chain of cleanups. This is useful where we
425 use the cleanup chain for handling normal cleanups as well as dealing
426 with cleanups that need to be done as a result of a call to error().
427 In such cases, we may not be certain where the first cleanup is, unless
428 we have a do-nothing one to always use as the base. */
431 null_cleanup (void *arg
)
435 /* Add a continuation to the continuation list, the global list
436 cmd_continuation. The new continuation will be added at the front.*/
438 add_continuation (void (*continuation_hook
) (struct continuation_arg
*),
439 struct continuation_arg
*arg_list
)
441 struct continuation
*continuation_ptr
;
444 (struct continuation
*) xmalloc (sizeof (struct continuation
));
445 continuation_ptr
->continuation_hook
= continuation_hook
;
446 continuation_ptr
->arg_list
= arg_list
;
447 continuation_ptr
->next
= cmd_continuation
;
448 cmd_continuation
= continuation_ptr
;
451 /* Walk down the cmd_continuation list, and execute all the
452 continuations. There is a problem though. In some cases new
453 continuations may be added while we are in the middle of this
454 loop. If this happens they will be added in the front, and done
455 before we have a chance of exhausting those that were already
456 there. We need to then save the beginning of the list in a pointer
457 and do the continuations from there on, instead of using the
458 global beginning of list as our iteration pointer.*/
460 do_all_continuations (void)
462 struct continuation
*continuation_ptr
;
463 struct continuation
*saved_continuation
;
465 /* Copy the list header into another pointer, and set the global
466 list header to null, so that the global list can change as a side
467 effect of invoking the continuations and the processing of
468 the preexisting continuations will not be affected. */
469 continuation_ptr
= cmd_continuation
;
470 cmd_continuation
= NULL
;
472 /* Work now on the list we have set aside. */
473 while (continuation_ptr
)
475 (continuation_ptr
->continuation_hook
) (continuation_ptr
->arg_list
);
476 saved_continuation
= continuation_ptr
;
477 continuation_ptr
= continuation_ptr
->next
;
478 xfree (saved_continuation
);
482 /* Walk down the cmd_continuation list, and get rid of all the
485 discard_all_continuations (void)
487 struct continuation
*continuation_ptr
;
489 while (cmd_continuation
)
491 continuation_ptr
= cmd_continuation
;
492 cmd_continuation
= continuation_ptr
->next
;
493 xfree (continuation_ptr
);
497 /* Add a continuation to the continuation list, the global list
498 intermediate_continuation. The new continuation will be added at the front.*/
500 add_intermediate_continuation (void (*continuation_hook
)
501 (struct continuation_arg
*),
502 struct continuation_arg
*arg_list
)
504 struct continuation
*continuation_ptr
;
507 (struct continuation
*) xmalloc (sizeof (struct continuation
));
508 continuation_ptr
->continuation_hook
= continuation_hook
;
509 continuation_ptr
->arg_list
= arg_list
;
510 continuation_ptr
->next
= intermediate_continuation
;
511 intermediate_continuation
= continuation_ptr
;
514 /* Walk down the cmd_continuation list, and execute all the
515 continuations. There is a problem though. In some cases new
516 continuations may be added while we are in the middle of this
517 loop. If this happens they will be added in the front, and done
518 before we have a chance of exhausting those that were already
519 there. We need to then save the beginning of the list in a pointer
520 and do the continuations from there on, instead of using the
521 global beginning of list as our iteration pointer.*/
523 do_all_intermediate_continuations (void)
525 struct continuation
*continuation_ptr
;
526 struct continuation
*saved_continuation
;
528 /* Copy the list header into another pointer, and set the global
529 list header to null, so that the global list can change as a side
530 effect of invoking the continuations and the processing of
531 the preexisting continuations will not be affected. */
532 continuation_ptr
= intermediate_continuation
;
533 intermediate_continuation
= NULL
;
535 /* Work now on the list we have set aside. */
536 while (continuation_ptr
)
538 (continuation_ptr
->continuation_hook
) (continuation_ptr
->arg_list
);
539 saved_continuation
= continuation_ptr
;
540 continuation_ptr
= continuation_ptr
->next
;
541 xfree (saved_continuation
);
545 /* Walk down the cmd_continuation list, and get rid of all the
548 discard_all_intermediate_continuations (void)
550 struct continuation
*continuation_ptr
;
552 while (intermediate_continuation
)
554 continuation_ptr
= intermediate_continuation
;
555 intermediate_continuation
= continuation_ptr
->next
;
556 xfree (continuation_ptr
);
562 /* Print a warning message. The first argument STRING is the warning
563 message, used as an fprintf format string, the second is the
564 va_list of arguments for that string. A warning is unfiltered (not
565 paginated) so that the user does not need to page through each
566 screen full of warnings when there are lots of them. */
569 vwarning (const char *string
, va_list args
)
572 (*warning_hook
) (string
, args
);
575 target_terminal_ours ();
576 wrap_here (""); /* Force out any buffered output */
577 gdb_flush (gdb_stdout
);
578 if (warning_pre_print
)
579 fputs_unfiltered (warning_pre_print
, gdb_stderr
);
580 vfprintf_unfiltered (gdb_stderr
, string
, args
);
581 fprintf_unfiltered (gdb_stderr
, "\n");
586 /* Print a warning message.
587 The first argument STRING is the warning message, used as a fprintf string,
588 and the remaining args are passed as arguments to it.
589 The primary difference between warnings and errors is that a warning
590 does not force the return to command level. */
593 warning (const char *string
, ...)
596 va_start (args
, string
);
597 vwarning (string
, args
);
601 /* Print an error message and return to command level.
602 The first argument STRING is the error message, used as a fprintf string,
603 and the remaining args are passed as arguments to it. */
606 verror (const char *string
, va_list args
)
608 struct ui_file
*tmp_stream
= mem_fileopen ();
609 make_cleanup_ui_file_delete (tmp_stream
);
610 vfprintf_unfiltered (tmp_stream
, string
, args
);
611 error_stream (tmp_stream
);
615 error (const char *string
, ...)
618 va_start (args
, string
);
619 verror (string
, args
);
624 do_write (void *data
, const char *buffer
, long length_buffer
)
626 ui_file_write (data
, buffer
, length_buffer
);
630 error_stream (struct ui_file
*stream
)
632 if (error_begin_hook
)
635 /* Copy the stream into the GDB_LASTERR buffer. */
636 ui_file_rewind (gdb_lasterr
);
637 ui_file_put (stream
, do_write
, gdb_lasterr
);
639 /* Write the message plus any error_pre_print to gdb_stderr. */
640 target_terminal_ours ();
641 wrap_here (""); /* Force out any buffered output */
642 gdb_flush (gdb_stdout
);
643 annotate_error_begin ();
645 fputs_filtered (error_pre_print
, gdb_stderr
);
646 ui_file_put (stream
, do_write
, gdb_stderr
);
647 fprintf_filtered (gdb_stderr
, "\n");
649 throw_exception (RETURN_ERROR
);
652 /* Get the last error message issued by gdb */
655 error_last_message (void)
658 return ui_file_xstrdup (gdb_lasterr
, &len
);
661 /* This is to be called by main() at the very beginning */
666 gdb_lasterr
= mem_fileopen ();
669 /* Print a message reporting an internal error/warning. Ask the user
670 if they want to continue, dump core, or just exit. Return
671 something to indicate a quit. */
673 struct internal_problem
676 /* FIXME: cagney/2002-08-15: There should be ``maint set/show''
677 commands available for controlling these variables. */
678 enum auto_boolean should_quit
;
679 enum auto_boolean should_dump_core
;
682 /* Report a problem, internal to GDB, to the user. Once the problem
683 has been reported, and assuming GDB didn't quit, the caller can
684 either allow execution to resume or throw an error. */
687 internal_vproblem (struct internal_problem
*problem
,
688 const char *file
, int line
, const char *fmt
, va_list ap
)
695 /* Don't allow infinite error/warning recursion. */
697 static char msg
[] = "Recursive internal problem.\n";
705 fputs_unfiltered (msg
, gdb_stderr
);
706 abort (); /* NOTE: GDB has only three calls to abort(). */
709 write (STDERR_FILENO
, msg
, sizeof (msg
));
714 /* Try to get the message out and at the start of a new line. */
715 target_terminal_ours ();
718 /* Create a string containing the full error/warning message. Need
719 to call query with this full string, as otherwize the reason
720 (error/warning) and question become separated. Format using a
721 style similar to a compiler error message. Include extra detail
722 so that the user knows that they are living on the edge. */
725 xvasprintf (&msg
, fmt
, ap
);
726 xasprintf (&reason
, "\
728 A problem internal to GDB has been detected,\n\
729 further debugging may prove unreliable.", file
, line
, problem
->name
, msg
);
731 make_cleanup (xfree
, reason
);
734 switch (problem
->should_quit
)
736 case AUTO_BOOLEAN_AUTO
:
737 /* Default (yes/batch case) is to quit GDB. When in batch mode
738 this lessens the likelhood of GDB going into an infinate
740 quit_p
= query ("%s\nQuit this debugging session? ", reason
);
742 case AUTO_BOOLEAN_TRUE
:
745 case AUTO_BOOLEAN_FALSE
:
749 internal_error (__FILE__
, __LINE__
, "bad switch");
752 switch (problem
->should_dump_core
)
754 case AUTO_BOOLEAN_AUTO
:
755 /* Default (yes/batch case) is to dump core. This leaves a GDB
756 `dropping' so that it is easier to see that something went
758 dump_core_p
= query ("%s\nCreate a core file of GDB? ", reason
);
761 case AUTO_BOOLEAN_TRUE
:
764 case AUTO_BOOLEAN_FALSE
:
768 internal_error (__FILE__
, __LINE__
, "bad switch");
774 abort (); /* NOTE: GDB has only three calls to abort(). */
783 abort (); /* NOTE: GDB has only three calls to abort(). */
790 static struct internal_problem internal_error_problem
= {
791 "internal-error", AUTO_BOOLEAN_AUTO
, AUTO_BOOLEAN_AUTO
795 internal_verror (const char *file
, int line
, const char *fmt
, va_list ap
)
797 internal_vproblem (&internal_error_problem
, file
, line
, fmt
, ap
);
798 throw_exception (RETURN_ERROR
);
802 internal_error (const char *file
, int line
, const char *string
, ...)
805 va_start (ap
, string
);
806 internal_verror (file
, line
, string
, ap
);
810 static struct internal_problem internal_warning_problem
= {
811 "internal-error", AUTO_BOOLEAN_AUTO
, AUTO_BOOLEAN_AUTO
815 internal_vwarning (const char *file
, int line
, const char *fmt
, va_list ap
)
817 internal_vproblem (&internal_warning_problem
, file
, line
, fmt
, ap
);
821 internal_warning (const char *file
, int line
, const char *string
, ...)
824 va_start (ap
, string
);
825 internal_vwarning (file
, line
, string
, ap
);
829 /* The strerror() function can return NULL for errno values that are
830 out of range. Provide a "safe" version that always returns a
834 safe_strerror (int errnum
)
839 msg
= strerror (errnum
);
842 sprintf (buf
, "(undocumented errno %d)", errnum
);
848 /* Print the system error message for errno, and also mention STRING
849 as the file name for which the error was encountered.
850 Then return to command level. */
853 perror_with_name (const char *string
)
858 err
= safe_strerror (errno
);
859 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
860 strcpy (combined
, string
);
861 strcat (combined
, ": ");
862 strcat (combined
, err
);
864 /* I understand setting these is a matter of taste. Still, some people
865 may clear errno but not know about bfd_error. Doing this here is not
867 bfd_set_error (bfd_error_no_error
);
870 error ("%s.", combined
);
873 /* Print the system error message for ERRCODE, and also mention STRING
874 as the file name for which the error was encountered. */
877 print_sys_errmsg (const char *string
, int errcode
)
882 err
= safe_strerror (errcode
);
883 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
884 strcpy (combined
, string
);
885 strcat (combined
, ": ");
886 strcat (combined
, err
);
888 /* We want anything which was printed on stdout to come out first, before
890 gdb_flush (gdb_stdout
);
891 fprintf_unfiltered (gdb_stderr
, "%s.\n", combined
);
894 /* Control C eventually causes this to be called, at a convenient time. */
899 struct serial
*gdb_stdout_serial
= serial_fdopen (1);
901 target_terminal_ours ();
903 /* We want all output to appear now, before we print "Quit". We
904 have 3 levels of buffering we have to flush (it's possible that
905 some of these should be changed to flush the lower-level ones
908 /* 1. The _filtered buffer. */
909 wrap_here ((char *) 0);
911 /* 2. The stdio buffer. */
912 gdb_flush (gdb_stdout
);
913 gdb_flush (gdb_stderr
);
915 /* 3. The system-level buffer. */
916 serial_drain_output (gdb_stdout_serial
);
917 serial_un_fdopen (gdb_stdout_serial
);
919 annotate_error_begin ();
921 /* Don't use *_filtered; we don't want to prompt the user to continue. */
923 fputs_unfiltered (quit_pre_print
, gdb_stderr
);
926 /* No steenking SIGINT will ever be coming our way when the
927 program is resumed. Don't lie. */
928 fprintf_unfiltered (gdb_stderr
, "Quit\n");
931 /* If there is no terminal switching for this target, then we can't
932 possibly get screwed by the lack of job control. */
933 || current_target
.to_terminal_ours
== NULL
)
934 fprintf_unfiltered (gdb_stderr
, "Quit\n");
936 fprintf_unfiltered (gdb_stderr
,
937 "Quit (expect signal SIGINT when the program is resumed)\n");
939 throw_exception (RETURN_QUIT
);
942 /* Control C comes here */
944 request_quit (int signo
)
947 /* Restore the signal handler. Harmless with BSD-style signals, needed
948 for System V-style signals. So just always do it, rather than worrying
949 about USG defines and stuff like that. */
950 signal (signo
, request_quit
);
960 /* Memory management stuff (malloc friends). */
962 #if !defined (USE_MMALLOC)
965 mmalloc (void *md
, size_t size
)
967 return malloc (size
); /* NOTE: GDB's only call to malloc() */
971 mrealloc (void *md
, void *ptr
, size_t size
)
973 if (ptr
== 0) /* Guard against old realloc's */
974 return mmalloc (md
, size
);
976 return realloc (ptr
, size
); /* NOTE: GDB's only call to ralloc() */
980 mcalloc (void *md
, size_t number
, size_t size
)
982 return calloc (number
, size
); /* NOTE: GDB's only call to calloc() */
986 mfree (void *md
, void *ptr
)
988 free (ptr
); /* NOTE: GDB's only call to free() */
991 #endif /* USE_MMALLOC */
993 #if !defined (USE_MMALLOC) || defined (NO_MMCHECK)
996 init_malloc (void *md
)
1000 #else /* Have mmalloc and want corruption checking */
1005 fprintf_unfiltered (gdb_stderr
, "Memory corruption\n");
1006 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
1009 /* Attempt to install hooks in mmalloc/mrealloc/mfree for the heap specified
1010 by MD, to detect memory corruption. Note that MD may be NULL to specify
1011 the default heap that grows via sbrk.
1013 Note that for freshly created regions, we must call mmcheckf prior to any
1014 mallocs in the region. Otherwise, any region which was allocated prior to
1015 installing the checking hooks, which is later reallocated or freed, will
1016 fail the checks! The mmcheck function only allows initial hooks to be
1017 installed before the first mmalloc. However, anytime after we have called
1018 mmcheck the first time to install the checking hooks, we can call it again
1019 to update the function pointer to the memory corruption handler.
1021 Returns zero on failure, non-zero on success. */
1023 #ifndef MMCHECK_FORCE
1024 #define MMCHECK_FORCE 0
1028 init_malloc (void *md
)
1030 if (!mmcheckf (md
, malloc_botch
, MMCHECK_FORCE
))
1032 /* Don't use warning(), which relies on current_target being set
1033 to something other than dummy_target, until after
1034 initialize_all_files(). */
1038 "warning: failed to install memory consistency checks; ");
1039 fprintf_unfiltered (gdb_stderr
,
1040 "configuration should define NO_MMCHECK or MMCHECK_FORCE\n");
1046 #endif /* Have mmalloc and want corruption checking */
1048 /* Called when a memory allocation fails, with the number of bytes of
1049 memory requested in SIZE. */
1056 internal_error (__FILE__
, __LINE__
,
1057 "virtual memory exhausted: can't allocate %ld bytes.",
1062 internal_error (__FILE__
, __LINE__
, "virtual memory exhausted.");
1066 /* The xmmalloc() family of memory management routines.
1068 These are are like the mmalloc() family except that they implement
1069 consistent semantics and guard against typical memory management
1070 problems: if a malloc fails, an internal error is thrown; if
1071 free(NULL) is called, it is ignored; if *alloc(0) is called, NULL
1074 All these routines are implemented using the mmalloc() family. */
1077 xmmalloc (void *md
, size_t size
)
1081 /* See libiberty/xmalloc.c. This function need's to match that's
1082 semantics. It never returns NULL. */
1086 val
= mmalloc (md
, size
);
1094 xmrealloc (void *md
, void *ptr
, size_t size
)
1098 /* See libiberty/xmalloc.c. This function need's to match that's
1099 semantics. It never returns NULL. */
1104 val
= mrealloc (md
, ptr
, size
);
1106 val
= mmalloc (md
, size
);
1114 xmcalloc (void *md
, size_t number
, size_t size
)
1118 /* See libiberty/xmalloc.c. This function need's to match that's
1119 semantics. It never returns NULL. */
1120 if (number
== 0 || size
== 0)
1126 mem
= mcalloc (md
, number
, size
);
1128 nomem (number
* size
);
1134 xmfree (void *md
, void *ptr
)
1140 /* The xmalloc() (libiberty.h) family of memory management routines.
1142 These are like the ISO-C malloc() family except that they implement
1143 consistent semantics and guard against typical memory management
1144 problems. See xmmalloc() above for further information.
1146 All these routines are wrappers to the xmmalloc() family. */
1148 /* NOTE: These are declared using PTR to ensure consistency with
1149 "libiberty.h". xfree() is GDB local. */
1152 xmalloc (size_t size
)
1154 return xmmalloc (NULL
, size
);
1158 xrealloc (PTR ptr
, size_t size
) /* OK: PTR */
1160 return xmrealloc (NULL
, ptr
, size
);
1164 xcalloc (size_t number
, size_t size
)
1166 return xmcalloc (NULL
, number
, size
);
1176 /* Like asprintf/vasprintf but get an internal_error if the call
1180 xstrprintf (const char *format
, ...)
1184 va_start (args
, format
);
1185 xvasprintf (&ret
, format
, args
);
1191 xasprintf (char **ret
, const char *format
, ...)
1194 va_start (args
, format
);
1195 xvasprintf (ret
, format
, args
);
1200 xvasprintf (char **ret
, const char *format
, va_list ap
)
1202 int status
= vasprintf (ret
, format
, ap
);
1203 /* NULL could be returned due to a memory allocation problem; a
1204 badly format string; or something else. */
1206 internal_error (__FILE__
, __LINE__
,
1207 "vasprintf returned NULL buffer (errno %d)", errno
);
1208 /* A negative status with a non-NULL buffer shouldn't never
1209 happen. But to be sure. */
1211 internal_error (__FILE__
, __LINE__
,
1212 "vasprintf call failed (errno %d)", errno
);
1216 /* My replacement for the read system call.
1217 Used like `read' but keeps going if `read' returns too soon. */
1220 myread (int desc
, char *addr
, int len
)
1227 val
= read (desc
, addr
, len
);
1231 return orglen
- len
;
1238 /* Make a copy of the string at PTR with SIZE characters
1239 (and add a null character at the end in the copy).
1240 Uses malloc to get the space. Returns the address of the copy. */
1243 savestring (const char *ptr
, size_t size
)
1245 char *p
= (char *) xmalloc (size
+ 1);
1246 memcpy (p
, ptr
, size
);
1252 msavestring (void *md
, const char *ptr
, size_t size
)
1254 char *p
= (char *) xmmalloc (md
, size
+ 1);
1255 memcpy (p
, ptr
, size
);
1261 mstrsave (void *md
, const char *ptr
)
1263 return (msavestring (md
, ptr
, strlen (ptr
)));
1267 print_spaces (int n
, struct ui_file
*file
)
1269 fputs_unfiltered (n_spaces (n
), file
);
1272 /* Print a host address. */
1275 gdb_print_host_address (const void *addr
, struct ui_file
*stream
)
1278 /* We could use the %p conversion specifier to fprintf if we had any
1279 way of knowing whether this host supports it. But the following
1280 should work on the Alpha and on 32 bit machines. */
1282 fprintf_filtered (stream
, "0x%lx", (unsigned long) addr
);
1285 /* Ask user a y-or-n question and return 1 iff answer is yes.
1286 Takes three args which are given to printf to print the question.
1287 The first, a control string, should end in "? ".
1288 It should not say how to answer, because we do that. */
1292 query (const char *ctlstr
, ...)
1299 va_start (args
, ctlstr
);
1303 return query_hook (ctlstr
, args
);
1306 /* Automatically answer "yes" if input is not from a terminal. */
1307 if (!input_from_terminal_p ())
1312 wrap_here (""); /* Flush any buffered output */
1313 gdb_flush (gdb_stdout
);
1315 if (annotation_level
> 1)
1316 printf_filtered ("\n\032\032pre-query\n");
1318 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1319 printf_filtered ("(y or n) ");
1321 if (annotation_level
> 1)
1322 printf_filtered ("\n\032\032query\n");
1325 gdb_flush (gdb_stdout
);
1327 answer
= fgetc (stdin
);
1328 clearerr (stdin
); /* in case of C-d */
1329 if (answer
== EOF
) /* C-d */
1334 /* Eat rest of input line, to EOF or newline */
1338 ans2
= fgetc (stdin
);
1341 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1355 printf_filtered ("Please answer y or n.\n");
1358 if (annotation_level
> 1)
1359 printf_filtered ("\n\032\032post-query\n");
1364 /* Print an error message saying that we couldn't make sense of a
1365 \^mumble sequence in a string or character constant. START and END
1366 indicate a substring of some larger string that contains the
1367 erroneous backslash sequence, missing the initial backslash. */
1369 no_control_char_error (const char *start
, const char *end
)
1371 int len
= end
- start
;
1372 char *copy
= alloca (end
- start
+ 1);
1374 memcpy (copy
, start
, len
);
1377 error ("There is no control character `\\%s' in the `%s' character set.",
1378 copy
, target_charset ());
1381 /* Parse a C escape sequence. STRING_PTR points to a variable
1382 containing a pointer to the string to parse. That pointer
1383 should point to the character after the \. That pointer
1384 is updated past the characters we use. The value of the
1385 escape sequence is returned.
1387 A negative value means the sequence \ newline was seen,
1388 which is supposed to be equivalent to nothing at all.
1390 If \ is followed by a null character, we return a negative
1391 value and leave the string pointer pointing at the null character.
1393 If \ is followed by 000, we return 0 and leave the string pointer
1394 after the zeros. A value of 0 does not mean end of string. */
1397 parse_escape (char **string_ptr
)
1400 int c
= *(*string_ptr
)++;
1401 if (c_parse_backslash (c
, &target_char
))
1413 /* Remember where this escape sequence started, for reporting
1415 char *sequence_start_pos
= *string_ptr
- 1;
1417 c
= *(*string_ptr
)++;
1421 /* XXXCHARSET: What is `delete' in the host character set? */
1424 if (!host_char_to_target (c
, &target_char
))
1425 error ("There is no character corresponding to `Delete' "
1426 "in the target character set `%s'.", host_charset ());
1431 target_char
= parse_escape (string_ptr
);
1434 if (!host_char_to_target (c
, &target_char
))
1435 no_control_char_error (sequence_start_pos
, *string_ptr
);
1438 /* Now target_char is something like `c', and we want to find
1439 its control-character equivalent. */
1440 if (!target_char_to_control_char (target_char
, &target_char
))
1441 no_control_char_error (sequence_start_pos
, *string_ptr
);
1446 /* XXXCHARSET: we need to use isdigit and value-of-digit
1447 methods of the host character set here. */
1463 if (c
>= '0' && c
<= '7')
1477 if (!host_char_to_target (c
, &target_char
))
1479 ("The escape sequence `\%c' is equivalent to plain `%c', which"
1480 " has no equivalent\n" "in the `%s' character set.", c
, c
,
1486 /* Print the character C on STREAM as part of the contents of a literal
1487 string whose delimiter is QUOTER. Note that this routine should only
1488 be call for printing things which are independent of the language
1489 of the program being debugged. */
1492 printchar (int c
, void (*do_fputs
) (const char *, struct ui_file
*),
1493 void (*do_fprintf
) (struct ui_file
*, const char *, ...),
1494 struct ui_file
*stream
, int quoter
)
1497 c
&= 0xFF; /* Avoid sign bit follies */
1499 if (c
< 0x20 || /* Low control chars */
1500 (c
>= 0x7F && c
< 0xA0) || /* DEL, High controls */
1501 (sevenbit_strings
&& c
>= 0x80))
1502 { /* high order bit set */
1506 do_fputs ("\\n", stream
);
1509 do_fputs ("\\b", stream
);
1512 do_fputs ("\\t", stream
);
1515 do_fputs ("\\f", stream
);
1518 do_fputs ("\\r", stream
);
1521 do_fputs ("\\e", stream
);
1524 do_fputs ("\\a", stream
);
1527 do_fprintf (stream
, "\\%.3o", (unsigned int) c
);
1533 if (c
== '\\' || c
== quoter
)
1534 do_fputs ("\\", stream
);
1535 do_fprintf (stream
, "%c", c
);
1539 /* Print the character C on STREAM as part of the contents of a
1540 literal string whose delimiter is QUOTER. Note that these routines
1541 should only be call for printing things which are independent of
1542 the language of the program being debugged. */
1545 fputstr_filtered (const char *str
, int quoter
, struct ui_file
*stream
)
1548 printchar (*str
++, fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1552 fputstr_unfiltered (const char *str
, int quoter
, struct ui_file
*stream
)
1555 printchar (*str
++, fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1559 fputstrn_unfiltered (const char *str
, int n
, int quoter
,
1560 struct ui_file
*stream
)
1563 for (i
= 0; i
< n
; i
++)
1564 printchar (str
[i
], fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1568 /* Number of lines per page or UINT_MAX if paging is disabled. */
1569 static unsigned int lines_per_page
;
1571 /* Number of chars per line or UINT_MAX if line folding is disabled. */
1572 static unsigned int chars_per_line
;
1574 /* Current count of lines printed on this page, chars on this line. */
1575 static unsigned int lines_printed
, chars_printed
;
1577 /* Buffer and start column of buffered text, for doing smarter word-
1578 wrapping. When someone calls wrap_here(), we start buffering output
1579 that comes through fputs_filtered(). If we see a newline, we just
1580 spit it out and forget about the wrap_here(). If we see another
1581 wrap_here(), we spit it out and remember the newer one. If we see
1582 the end of the line, we spit out a newline, the indent, and then
1583 the buffered output. */
1585 /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which
1586 are waiting to be output (they have already been counted in chars_printed).
1587 When wrap_buffer[0] is null, the buffer is empty. */
1588 static char *wrap_buffer
;
1590 /* Pointer in wrap_buffer to the next character to fill. */
1591 static char *wrap_pointer
;
1593 /* String to indent by if the wrap occurs. Must not be NULL if wrap_column
1595 static char *wrap_indent
;
1597 /* Column number on the screen where wrap_buffer begins, or 0 if wrapping
1598 is not in effect. */
1599 static int wrap_column
;
1602 /* Inialize the number of lines per page and chars per line. */
1605 init_page_info (void)
1608 if (!tui_get_command_dimension (&chars_per_line
, &lines_per_page
))
1611 #if defined(__GO32__)
1612 lines_per_page
= ScreenRows ();
1613 chars_per_line
= ScreenCols ();
1617 /* Make sure Readline has initialized its terminal settings. */
1618 rl_reset_terminal (NULL
);
1620 /* Get the screen size from Readline. */
1621 rl_get_screen_size (&rows
, &cols
);
1622 lines_per_page
= rows
;
1623 chars_per_line
= cols
;
1625 /* Readline should have fetched the termcap entry for us. */
1626 if (tgetnum ("li") < 0 || getenv ("EMACS"))
1628 /* The number of lines per page is not mentioned in the
1629 terminal description. This probably means that paging is
1630 not useful (e.g. emacs shell window), so disable paging. */
1631 lines_per_page
= UINT_MAX
;
1634 /* FIXME: Get rid of this junk. */
1635 #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
1636 SIGWINCH_HANDLER (SIGWINCH
);
1639 /* If the output is not a terminal, don't paginate it. */
1640 if (!ui_file_isatty (gdb_stdout
))
1641 lines_per_page
= UINT_MAX
;
1649 /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */
1652 set_screen_size (void)
1654 int rows
= lines_per_page
;
1655 int cols
= chars_per_line
;
1661 rl_get_screen_size (NULL
, &cols
);
1663 /* Update Readline's idea of the terminal size. */
1664 rl_set_screen_size (rows
, cols
);
1667 /* Reinitialize WRAP_BUFFER according to the current value of
1673 if (chars_per_line
== 0)
1678 wrap_buffer
= (char *) xmalloc (chars_per_line
+ 2);
1679 wrap_buffer
[0] = '\0';
1682 wrap_buffer
= (char *) xrealloc (wrap_buffer
, chars_per_line
+ 2);
1683 wrap_pointer
= wrap_buffer
; /* Start it at the beginning. */
1687 set_width_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1694 set_height_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1699 /* Wait, so the user can read what's on the screen. Prompt the user
1700 to continue by pressing RETURN. */
1703 prompt_for_continue (void)
1706 char cont_prompt
[120];
1708 if (annotation_level
> 1)
1709 printf_unfiltered ("\n\032\032pre-prompt-for-continue\n");
1711 strcpy (cont_prompt
,
1712 "---Type <return> to continue, or q <return> to quit---");
1713 if (annotation_level
> 1)
1714 strcat (cont_prompt
, "\n\032\032prompt-for-continue\n");
1716 /* We must do this *before* we call gdb_readline, else it will eventually
1717 call us -- thinking that we're trying to print beyond the end of the
1719 reinitialize_more_filter ();
1722 /* On a real operating system, the user can quit with SIGINT.
1725 'q' is provided on all systems so users don't have to change habits
1726 from system to system, and because telling them what to do in
1727 the prompt is more user-friendly than expecting them to think of
1729 /* Call readline, not gdb_readline, because GO32 readline handles control-C
1730 whereas control-C to gdb_readline will cause the user to get dumped
1732 ignore
= gdb_readline_wrapper (cont_prompt
);
1734 if (annotation_level
> 1)
1735 printf_unfiltered ("\n\032\032post-prompt-for-continue\n");
1740 while (*p
== ' ' || *p
== '\t')
1745 request_quit (SIGINT
);
1747 async_request_quit (0);
1753 /* Now we have to do this again, so that GDB will know that it doesn't
1754 need to save the ---Type <return>--- line at the top of the screen. */
1755 reinitialize_more_filter ();
1757 dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */
1760 /* Reinitialize filter; ie. tell it to reset to original values. */
1763 reinitialize_more_filter (void)
1769 /* Indicate that if the next sequence of characters overflows the line,
1770 a newline should be inserted here rather than when it hits the end.
1771 If INDENT is non-null, it is a string to be printed to indent the
1772 wrapped part on the next line. INDENT must remain accessible until
1773 the next call to wrap_here() or until a newline is printed through
1776 If the line is already overfull, we immediately print a newline and
1777 the indentation, and disable further wrapping.
1779 If we don't know the width of lines, but we know the page height,
1780 we must not wrap words, but should still keep track of newlines
1781 that were explicitly printed.
1783 INDENT should not contain tabs, as that will mess up the char count
1784 on the next line. FIXME.
1786 This routine is guaranteed to force out any output which has been
1787 squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be
1788 used to force out output from the wrap_buffer. */
1791 wrap_here (char *indent
)
1793 /* This should have been allocated, but be paranoid anyway. */
1795 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
1799 *wrap_pointer
= '\0';
1800 fputs_unfiltered (wrap_buffer
, gdb_stdout
);
1802 wrap_pointer
= wrap_buffer
;
1803 wrap_buffer
[0] = '\0';
1804 if (chars_per_line
== UINT_MAX
) /* No line overflow checking */
1808 else if (chars_printed
>= chars_per_line
)
1810 puts_filtered ("\n");
1812 puts_filtered (indent
);
1817 wrap_column
= chars_printed
;
1821 wrap_indent
= indent
;
1825 /* Print input string to gdb_stdout, filtered, with wrap,
1826 arranging strings in columns of n chars. String can be
1827 right or left justified in the column. Never prints
1828 trailing spaces. String should never be longer than
1829 width. FIXME: this could be useful for the EXAMINE
1830 command, which currently doesn't tabulate very well */
1833 puts_filtered_tabular (char *string
, int width
, int right
)
1839 gdb_assert (chars_per_line
> 0);
1840 if (chars_per_line
== UINT_MAX
)
1842 fputs_filtered (string
, gdb_stdout
);
1843 fputs_filtered ("\n", gdb_stdout
);
1847 if (((chars_printed
- 1) / width
+ 2) * width
>= chars_per_line
)
1848 fputs_filtered ("\n", gdb_stdout
);
1850 if (width
>= chars_per_line
)
1851 width
= chars_per_line
- 1;
1853 stringlen
= strlen (string
);
1855 if (chars_printed
> 0)
1856 spaces
= width
- (chars_printed
- 1) % width
- 1;
1858 spaces
+= width
- stringlen
;
1860 spacebuf
= alloca (spaces
+ 1);
1861 spacebuf
[spaces
] = '\0';
1863 spacebuf
[spaces
] = ' ';
1865 fputs_filtered (spacebuf
, gdb_stdout
);
1866 fputs_filtered (string
, gdb_stdout
);
1870 /* Ensure that whatever gets printed next, using the filtered output
1871 commands, starts at the beginning of the line. I.E. if there is
1872 any pending output for the current line, flush it and start a new
1873 line. Otherwise do nothing. */
1878 if (chars_printed
> 0)
1880 puts_filtered ("\n");
1885 /* Like fputs but if FILTER is true, pause after every screenful.
1887 Regardless of FILTER can wrap at points other than the final
1888 character of a line.
1890 Unlike fputs, fputs_maybe_filtered does not return a value.
1891 It is OK for LINEBUFFER to be NULL, in which case just don't print
1894 Note that a longjmp to top level may occur in this routine (only if
1895 FILTER is true) (since prompt_for_continue may do so) so this
1896 routine should not be called when cleanups are not in place. */
1899 fputs_maybe_filtered (const char *linebuffer
, struct ui_file
*stream
,
1902 const char *lineptr
;
1904 if (linebuffer
== 0)
1907 /* Don't do any filtering if it is disabled. */
1908 if ((stream
!= gdb_stdout
) || !pagination_enabled
1909 || (lines_per_page
== UINT_MAX
&& chars_per_line
== UINT_MAX
))
1911 fputs_unfiltered (linebuffer
, stream
);
1915 /* Go through and output each character. Show line extension
1916 when this is necessary; prompt user for new page when this is
1919 lineptr
= linebuffer
;
1922 /* Possible new page. */
1923 if (filter
&& (lines_printed
>= lines_per_page
- 1))
1924 prompt_for_continue ();
1926 while (*lineptr
&& *lineptr
!= '\n')
1928 /* Print a single line. */
1929 if (*lineptr
== '\t')
1932 *wrap_pointer
++ = '\t';
1934 fputc_unfiltered ('\t', stream
);
1935 /* Shifting right by 3 produces the number of tab stops
1936 we have already passed, and then adding one and
1937 shifting left 3 advances to the next tab stop. */
1938 chars_printed
= ((chars_printed
>> 3) + 1) << 3;
1944 *wrap_pointer
++ = *lineptr
;
1946 fputc_unfiltered (*lineptr
, stream
);
1951 if (chars_printed
>= chars_per_line
)
1953 unsigned int save_chars
= chars_printed
;
1957 /* If we aren't actually wrapping, don't output newline --
1958 if chars_per_line is right, we probably just overflowed
1959 anyway; if it's wrong, let us keep going. */
1961 fputc_unfiltered ('\n', stream
);
1963 /* Possible new page. */
1964 if (lines_printed
>= lines_per_page
- 1)
1965 prompt_for_continue ();
1967 /* Now output indentation and wrapped string */
1970 fputs_unfiltered (wrap_indent
, stream
);
1971 *wrap_pointer
= '\0'; /* Null-terminate saved stuff */
1972 fputs_unfiltered (wrap_buffer
, stream
); /* and eject it */
1973 /* FIXME, this strlen is what prevents wrap_indent from
1974 containing tabs. However, if we recurse to print it
1975 and count its chars, we risk trouble if wrap_indent is
1976 longer than (the user settable) chars_per_line.
1977 Note also that this can set chars_printed > chars_per_line
1978 if we are printing a long string. */
1979 chars_printed
= strlen (wrap_indent
)
1980 + (save_chars
- wrap_column
);
1981 wrap_pointer
= wrap_buffer
; /* Reset buffer */
1982 wrap_buffer
[0] = '\0';
1983 wrap_column
= 0; /* And disable fancy wrap */
1988 if (*lineptr
== '\n')
1991 wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */
1993 fputc_unfiltered ('\n', stream
);
2000 fputs_filtered (const char *linebuffer
, struct ui_file
*stream
)
2002 fputs_maybe_filtered (linebuffer
, stream
, 1);
2006 putchar_unfiltered (int c
)
2009 ui_file_write (gdb_stdout
, &buf
, 1);
2013 /* Write character C to gdb_stdout using GDB's paging mechanism and return C.
2014 May return nonlocally. */
2017 putchar_filtered (int c
)
2019 return fputc_filtered (c
, gdb_stdout
);
2023 fputc_unfiltered (int c
, struct ui_file
*stream
)
2026 ui_file_write (stream
, &buf
, 1);
2031 fputc_filtered (int c
, struct ui_file
*stream
)
2037 fputs_filtered (buf
, stream
);
2041 /* puts_debug is like fputs_unfiltered, except it prints special
2042 characters in printable fashion. */
2045 puts_debug (char *prefix
, char *string
, char *suffix
)
2049 /* Print prefix and suffix after each line. */
2050 static int new_line
= 1;
2051 static int return_p
= 0;
2052 static char *prev_prefix
= "";
2053 static char *prev_suffix
= "";
2055 if (*string
== '\n')
2058 /* If the prefix is changing, print the previous suffix, a new line,
2059 and the new prefix. */
2060 if ((return_p
|| (strcmp (prev_prefix
, prefix
) != 0)) && !new_line
)
2062 fputs_unfiltered (prev_suffix
, gdb_stdlog
);
2063 fputs_unfiltered ("\n", gdb_stdlog
);
2064 fputs_unfiltered (prefix
, gdb_stdlog
);
2067 /* Print prefix if we printed a newline during the previous call. */
2071 fputs_unfiltered (prefix
, gdb_stdlog
);
2074 prev_prefix
= prefix
;
2075 prev_suffix
= suffix
;
2077 /* Output characters in a printable format. */
2078 while ((ch
= *string
++) != '\0')
2084 fputc_unfiltered (ch
, gdb_stdlog
);
2087 fprintf_unfiltered (gdb_stdlog
, "\\x%02x", ch
& 0xff);
2091 fputs_unfiltered ("\\\\", gdb_stdlog
);
2094 fputs_unfiltered ("\\b", gdb_stdlog
);
2097 fputs_unfiltered ("\\f", gdb_stdlog
);
2101 fputs_unfiltered ("\\n", gdb_stdlog
);
2104 fputs_unfiltered ("\\r", gdb_stdlog
);
2107 fputs_unfiltered ("\\t", gdb_stdlog
);
2110 fputs_unfiltered ("\\v", gdb_stdlog
);
2114 return_p
= ch
== '\r';
2117 /* Print suffix if we printed a newline. */
2120 fputs_unfiltered (suffix
, gdb_stdlog
);
2121 fputs_unfiltered ("\n", gdb_stdlog
);
2126 /* Print a variable number of ARGS using format FORMAT. If this
2127 information is going to put the amount written (since the last call
2128 to REINITIALIZE_MORE_FILTER or the last page break) over the page size,
2129 call prompt_for_continue to get the users permision to continue.
2131 Unlike fprintf, this function does not return a value.
2133 We implement three variants, vfprintf (takes a vararg list and stream),
2134 fprintf (takes a stream to write on), and printf (the usual).
2136 Note also that a longjmp to top level may occur in this routine
2137 (since prompt_for_continue may do so) so this routine should not be
2138 called when cleanups are not in place. */
2141 vfprintf_maybe_filtered (struct ui_file
*stream
, const char *format
,
2142 va_list args
, int filter
)
2145 struct cleanup
*old_cleanups
;
2147 xvasprintf (&linebuffer
, format
, args
);
2148 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2149 fputs_maybe_filtered (linebuffer
, stream
, filter
);
2150 do_cleanups (old_cleanups
);
2155 vfprintf_filtered (struct ui_file
*stream
, const char *format
, va_list args
)
2157 vfprintf_maybe_filtered (stream
, format
, args
, 1);
2161 vfprintf_unfiltered (struct ui_file
*stream
, const char *format
, va_list args
)
2164 struct cleanup
*old_cleanups
;
2166 xvasprintf (&linebuffer
, format
, args
);
2167 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2168 fputs_unfiltered (linebuffer
, stream
);
2169 do_cleanups (old_cleanups
);
2173 vprintf_filtered (const char *format
, va_list args
)
2175 vfprintf_maybe_filtered (gdb_stdout
, format
, args
, 1);
2179 vprintf_unfiltered (const char *format
, va_list args
)
2181 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2185 fprintf_filtered (struct ui_file
*stream
, const char *format
, ...)
2188 va_start (args
, format
);
2189 vfprintf_filtered (stream
, format
, args
);
2194 fprintf_unfiltered (struct ui_file
*stream
, const char *format
, ...)
2197 va_start (args
, format
);
2198 vfprintf_unfiltered (stream
, format
, args
);
2202 /* Like fprintf_filtered, but prints its result indented.
2203 Called as fprintfi_filtered (spaces, stream, format, ...); */
2206 fprintfi_filtered (int spaces
, struct ui_file
*stream
, const char *format
,
2210 va_start (args
, format
);
2211 print_spaces_filtered (spaces
, stream
);
2213 vfprintf_filtered (stream
, format
, args
);
2219 printf_filtered (const char *format
, ...)
2222 va_start (args
, format
);
2223 vfprintf_filtered (gdb_stdout
, format
, args
);
2229 printf_unfiltered (const char *format
, ...)
2232 va_start (args
, format
);
2233 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2237 /* Like printf_filtered, but prints it's result indented.
2238 Called as printfi_filtered (spaces, format, ...); */
2241 printfi_filtered (int spaces
, const char *format
, ...)
2244 va_start (args
, format
);
2245 print_spaces_filtered (spaces
, gdb_stdout
);
2246 vfprintf_filtered (gdb_stdout
, format
, args
);
2250 /* Easy -- but watch out!
2252 This routine is *not* a replacement for puts()! puts() appends a newline.
2253 This one doesn't, and had better not! */
2256 puts_filtered (const char *string
)
2258 fputs_filtered (string
, gdb_stdout
);
2262 puts_unfiltered (const char *string
)
2264 fputs_unfiltered (string
, gdb_stdout
);
2267 /* Return a pointer to N spaces and a null. The pointer is good
2268 until the next call to here. */
2273 static char *spaces
= 0;
2274 static int max_spaces
= -1;
2280 spaces
= (char *) xmalloc (n
+ 1);
2281 for (t
= spaces
+ n
; t
!= spaces
;)
2287 return spaces
+ max_spaces
- n
;
2290 /* Print N spaces. */
2292 print_spaces_filtered (int n
, struct ui_file
*stream
)
2294 fputs_filtered (n_spaces (n
), stream
);
2297 /* C++/ObjC demangler stuff. */
2299 /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language
2300 LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
2301 If the name is not mangled, or the language for the name is unknown, or
2302 demangling is off, the name is printed in its "raw" form. */
2305 fprintf_symbol_filtered (struct ui_file
*stream
, char *name
,
2306 enum language lang
, int arg_mode
)
2312 /* If user wants to see raw output, no problem. */
2315 fputs_filtered (name
, stream
);
2319 demangled
= language_demangle (language_def (lang
), name
, arg_mode
);
2320 fputs_filtered (demangled
? demangled
: name
, stream
);
2321 if (demangled
!= NULL
)
2329 /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any
2330 differences in whitespace. Returns 0 if they match, non-zero if they
2331 don't (slightly different than strcmp()'s range of return values).
2333 As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO".
2334 This "feature" is useful when searching for matching C++ function names
2335 (such as if the user types 'break FOO', where FOO is a mangled C++
2339 strcmp_iw (const char *string1
, const char *string2
)
2341 while ((*string1
!= '\0') && (*string2
!= '\0'))
2343 while (isspace (*string1
))
2347 while (isspace (*string2
))
2351 if (*string1
!= *string2
)
2355 if (*string1
!= '\0')
2361 return (*string1
!= '\0' && *string1
!= '(') || (*string2
!= '\0');
2364 /* This is like strcmp except that it ignores whitespace and treats
2365 '(' as the first non-NULL character in terms of ordering. Like
2366 strcmp (and unlike strcmp_iw), it returns negative if STRING1 <
2367 STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2
2368 according to that ordering.
2370 If a list is sorted according to this function and if you want to
2371 find names in the list that match some fixed NAME according to
2372 strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
2373 where this function would put NAME.
2375 Here are some examples of why using strcmp to sort is a bad idea:
2379 Say your partial symtab contains: "foo<char *>", "goo". Then, if
2380 we try to do a search for "foo<char*>", strcmp will locate this
2381 after "foo<char *>" and before "goo". Then lookup_partial_symbol
2382 will start looking at strings beginning with "goo", and will never
2383 see the correct match of "foo<char *>".
2385 Parenthesis example:
2387 In practice, this is less like to be an issue, but I'll give it a
2388 shot. Let's assume that '$' is a legitimate character to occur in
2389 symbols. (Which may well even be the case on some systems.) Then
2390 say that the partial symbol table contains "foo$" and "foo(int)".
2391 strcmp will put them in this order, since '$' < '('. Now, if the
2392 user searches for "foo", then strcmp will sort "foo" before "foo$".
2393 Then lookup_partial_symbol will notice that strcmp_iw("foo$",
2394 "foo") is false, so it won't proceed to the actual match of
2395 "foo(int)" with "foo". */
2398 strcmp_iw_ordered (const char *string1
, const char *string2
)
2400 while ((*string1
!= '\0') && (*string2
!= '\0'))
2402 while (isspace (*string1
))
2406 while (isspace (*string2
))
2410 if (*string1
!= *string2
)
2414 if (*string1
!= '\0')
2423 /* Characters are non-equal unless they're both '\0'; we want to
2424 make sure we get the comparison right according to our
2425 comparison in the cases where one of them is '\0' or '('. */
2427 if (*string2
== '\0')
2432 if (*string2
== '\0')
2437 if (*string2
== '(')
2440 return *string1
- *string2
;
2444 /* A simple comparison function with opposite semantics to strcmp. */
2447 streq (const char *lhs
, const char *rhs
)
2449 return !strcmp (lhs
, rhs
);
2455 ** Answer whether string_to_compare is a full or partial match to
2456 ** template_string. The partial match must be in sequence starting
2460 subset_compare (char *string_to_compare
, char *template_string
)
2463 if (template_string
!= (char *) NULL
&& string_to_compare
!= (char *) NULL
2464 && strlen (string_to_compare
) <= strlen (template_string
))
2467 (template_string
, string_to_compare
, strlen (string_to_compare
)) == 0);
2474 static void pagination_on_command (char *arg
, int from_tty
);
2476 pagination_on_command (char *arg
, int from_tty
)
2478 pagination_enabled
= 1;
2481 static void pagination_on_command (char *arg
, int from_tty
);
2483 pagination_off_command (char *arg
, int from_tty
)
2485 pagination_enabled
= 0;
2490 initialize_utils (void)
2492 struct cmd_list_element
*c
;
2494 c
= add_set_cmd ("width", class_support
, var_uinteger
, &chars_per_line
,
2495 "Set number of characters gdb thinks are in a line.",
2497 add_show_from_set (c
, &showlist
);
2498 set_cmd_sfunc (c
, set_width_command
);
2500 c
= add_set_cmd ("height", class_support
, var_uinteger
, &lines_per_page
,
2501 "Set number of lines gdb thinks are in a page.", &setlist
);
2502 add_show_from_set (c
, &showlist
);
2503 set_cmd_sfunc (c
, set_height_command
);
2508 (add_set_cmd ("demangle", class_support
, var_boolean
,
2510 "Set demangling of encoded C++/ObjC names when displaying symbols.",
2511 &setprintlist
), &showprintlist
);
2514 (add_set_cmd ("pagination", class_support
,
2515 var_boolean
, (char *) &pagination_enabled
,
2516 "Set state of pagination.", &setlist
), &showlist
);
2520 add_com ("am", class_support
, pagination_on_command
,
2521 "Enable pagination");
2522 add_com ("sm", class_support
, pagination_off_command
,
2523 "Disable pagination");
2527 (add_set_cmd ("sevenbit-strings", class_support
, var_boolean
,
2528 (char *) &sevenbit_strings
,
2529 "Set printing of 8-bit characters in strings as \\nnn.",
2530 &setprintlist
), &showprintlist
);
2533 (add_set_cmd ("asm-demangle", class_support
, var_boolean
,
2534 (char *) &asm_demangle
,
2535 "Set demangling of C++/ObjC names in disassembly listings.",
2536 &setprintlist
), &showprintlist
);
2539 /* Machine specific function to handle SIGWINCH signal. */
2541 #ifdef SIGWINCH_HANDLER_BODY
2542 SIGWINCH_HANDLER_BODY
2544 /* print routines to handle variable size regs, etc. */
2545 /* temporary storage using circular buffer */
2551 static char buf
[NUMCELLS
][CELLSIZE
];
2552 static int cell
= 0;
2553 if (++cell
>= NUMCELLS
)
2561 return (TARGET_ADDR_BIT
/ 8 * 2);
2565 paddr (CORE_ADDR addr
)
2567 return phex (addr
, TARGET_ADDR_BIT
/ 8);
2571 paddr_nz (CORE_ADDR addr
)
2573 return phex_nz (addr
, TARGET_ADDR_BIT
/ 8);
2577 decimal2str (char *paddr_str
, char *sign
, ULONGEST addr
)
2579 /* steal code from valprint.c:print_decimal(). Should this worry
2580 about the real size of addr as the above does? */
2581 unsigned long temp
[3];
2585 temp
[i
] = addr
% (1000 * 1000 * 1000);
2586 addr
/= (1000 * 1000 * 1000);
2589 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2593 sprintf (paddr_str
, "%s%lu", sign
, temp
[0]);
2596 sprintf (paddr_str
, "%s%lu%09lu", sign
, temp
[1], temp
[0]);
2599 sprintf (paddr_str
, "%s%lu%09lu%09lu", sign
, temp
[2], temp
[1], temp
[0]);
2602 internal_error (__FILE__
, __LINE__
,
2603 "failed internal consistency check");
2608 paddr_u (CORE_ADDR addr
)
2610 char *paddr_str
= get_cell ();
2611 decimal2str (paddr_str
, "", addr
);
2616 paddr_d (LONGEST addr
)
2618 char *paddr_str
= get_cell ();
2620 decimal2str (paddr_str
, "-", -addr
);
2622 decimal2str (paddr_str
, "", addr
);
2626 /* eliminate warning from compiler on 32-bit systems */
2627 static int thirty_two
= 32;
2630 phex (ULONGEST l
, int sizeof_l
)
2637 sprintf (str
, "%08lx%08lx",
2638 (unsigned long) (l
>> thirty_two
),
2639 (unsigned long) (l
& 0xffffffff));
2643 sprintf (str
, "%08lx", (unsigned long) l
);
2647 sprintf (str
, "%04x", (unsigned short) (l
& 0xffff));
2650 str
= phex (l
, sizeof (l
));
2657 phex_nz (ULONGEST l
, int sizeof_l
)
2664 unsigned long high
= (unsigned long) (l
>> thirty_two
);
2667 sprintf (str
, "%lx", (unsigned long) (l
& 0xffffffff));
2669 sprintf (str
, "%lx%08lx", high
, (unsigned long) (l
& 0xffffffff));
2674 sprintf (str
, "%lx", (unsigned long) l
);
2678 sprintf (str
, "%x", (unsigned short) (l
& 0xffff));
2681 str
= phex_nz (l
, sizeof (l
));
2688 /* Convert a CORE_ADDR into a string. */
2690 core_addr_to_string (const CORE_ADDR addr
)
2692 char *str
= get_cell ();
2694 strcat (str
, phex (addr
, sizeof (addr
)));
2699 core_addr_to_string_nz (const CORE_ADDR addr
)
2701 char *str
= get_cell ();
2703 strcat (str
, phex_nz (addr
, sizeof (addr
)));
2707 /* Convert a string back into a CORE_ADDR. */
2709 string_to_core_addr (const char *my_string
)
2712 if (my_string
[0] == '0' && tolower (my_string
[1]) == 'x')
2714 /* Assume that it is in decimal. */
2716 for (i
= 2; my_string
[i
] != '\0'; i
++)
2718 if (isdigit (my_string
[i
]))
2719 addr
= (my_string
[i
] - '0') + (addr
* 16);
2720 else if (isxdigit (my_string
[i
]))
2721 addr
= (tolower (my_string
[i
]) - 'a' + 0xa) + (addr
* 16);
2723 internal_error (__FILE__
, __LINE__
, "invalid hex");
2728 /* Assume that it is in decimal. */
2730 for (i
= 0; my_string
[i
] != '\0'; i
++)
2732 if (isdigit (my_string
[i
]))
2733 addr
= (my_string
[i
] - '0') + (addr
* 10);
2735 internal_error (__FILE__
, __LINE__
, "invalid decimal");
2742 gdb_realpath (const char *filename
)
2744 /* Method 1: The system has a compile time upper bound on a filename
2745 path. Use that and realpath() to canonicalize the name. This is
2746 the most common case. Note that, if there isn't a compile time
2747 upper bound, you want to avoid realpath() at all costs. */
2748 #if defined(HAVE_REALPATH)
2750 # if defined (PATH_MAX)
2752 # define USE_REALPATH
2753 # elif defined (MAXPATHLEN)
2754 char buf
[MAXPATHLEN
];
2755 # define USE_REALPATH
2757 # if defined (USE_REALPATH)
2758 const char *rp
= realpath (filename
, buf
);
2761 return xstrdup (rp
);
2764 #endif /* HAVE_REALPATH */
2766 /* Method 2: The host system (i.e., GNU) has the function
2767 canonicalize_file_name() which malloc's a chunk of memory and
2768 returns that, use that. */
2769 #if defined(HAVE_CANONICALIZE_FILE_NAME)
2771 char *rp
= canonicalize_file_name (filename
);
2773 return xstrdup (filename
);
2779 /* FIXME: cagney/2002-11-13:
2781 Method 2a: Use realpath() with a NULL buffer. Some systems, due
2782 to the problems described in in method 3, have modified their
2783 realpath() implementation so that it will allocate a buffer when
2784 NULL is passed in. Before this can be used, though, some sort of
2785 configure time test would need to be added. Otherwize the code
2786 will likely core dump. */
2788 /* Method 3: Now we're getting desperate! The system doesn't have a
2789 compile time buffer size and no alternative function. Query the
2790 OS, using pathconf(), for the buffer limit. Care is needed
2791 though, some systems do not limit PATH_MAX (return -1 for
2792 pathconf()) making it impossible to pass a correctly sized buffer
2793 to realpath() (it could always overflow). On those systems, we
2795 #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
2797 /* Find out the max path size. */
2798 long path_max
= pathconf ("/", _PC_PATH_MAX
);
2801 /* PATH_MAX is bounded. */
2802 char *buf
= alloca (path_max
);
2803 char *rp
= realpath (filename
, buf
);
2804 return xstrdup (rp
? rp
: filename
);
2809 /* This system is a lost cause, just dup the buffer. */
2810 return xstrdup (filename
);
2813 /* Return a copy of FILENAME, with its directory prefix canonicalized
2817 xfullpath (const char *filename
)
2819 const char *base_name
= lbasename (filename
);
2824 /* Extract the basename of filename, and return immediately
2825 a copy of filename if it does not contain any directory prefix. */
2826 if (base_name
== filename
)
2827 return xstrdup (filename
);
2829 dir_name
= alloca ((size_t) (base_name
- filename
+ 2));
2830 /* Allocate enough space to store the dir_name + plus one extra
2831 character sometimes needed under Windows (see below), and
2832 then the closing \000 character */
2833 strncpy (dir_name
, filename
, base_name
- filename
);
2834 dir_name
[base_name
- filename
] = '\000';
2836 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2837 /* We need to be careful when filename is of the form 'd:foo', which
2838 is equivalent of d:./foo, which is totally different from d:/foo. */
2839 if (strlen (dir_name
) == 2 && isalpha (dir_name
[0]) && dir_name
[1] == ':')
2842 dir_name
[3] = '\000';
2846 /* Canonicalize the directory prefix, and build the resulting
2847 filename. If the dirname realpath already contains an ending
2848 directory separator, avoid doubling it. */
2849 real_path
= gdb_realpath (dir_name
);
2850 if (IS_DIR_SEPARATOR (real_path
[strlen (real_path
) - 1]))
2851 result
= concat (real_path
, base_name
, NULL
);
2853 result
= concat (real_path
, SLASH_STRING
, base_name
, NULL
);
2860 /* This is the 32-bit CRC function used by the GNU separate debug
2861 facility. An executable may contain a section named
2862 .gnu_debuglink, which holds the name of a separate executable file
2863 containing its debug info, and a checksum of that file's contents,
2864 computed using this function. */
2866 gnu_debuglink_crc32 (unsigned long crc
, unsigned char *buf
, size_t len
)
2868 static const unsigned long crc32_table
[256] = {
2869 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
2870 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
2871 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
2872 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
2873 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
2874 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
2875 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
2876 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
2877 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
2878 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
2879 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
2880 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
2881 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
2882 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
2883 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
2884 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
2885 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
2886 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
2887 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
2888 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
2889 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
2890 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
2891 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
2892 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
2893 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
2894 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
2895 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
2896 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
2897 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
2898 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
2899 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
2900 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
2901 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
2902 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
2903 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
2904 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
2905 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
2906 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
2907 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
2908 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
2909 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
2910 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
2911 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
2912 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
2913 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
2914 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
2915 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
2916 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
2917 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
2918 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
2919 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
2924 crc
= ~crc
& 0xffffffff;
2925 for (end
= buf
+ len
; buf
< end
; ++buf
)
2926 crc
= crc32_table
[(crc
^ *buf
) & 0xff] ^ (crc
>> 8);
2927 return ~crc
& 0xffffffff;;
2931 align_up (ULONGEST v
, int n
)
2933 /* Check that N is really a power of two. */
2934 gdb_assert (n
&& (n
& (n
-1)) == 0);
2935 return (v
+ n
- 1) & -n
;
2939 align_down (ULONGEST v
, int n
)
2941 /* Check that N is really a power of two. */
2942 gdb_assert (n
&& (n
& (n
-1)) == 0);