1 /* General utility routines for GDB, the GNU debugger.
3 Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
4 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
25 #include "gdb_assert.h"
27 #include "gdb_string.h"
28 #include "event-top.h"
31 #include "tui/tui.h" /* For tui_get_command_dimension. */
38 /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */
49 #include "expression.h"
53 #include "filenames.h"
55 #include "inferior.h" /* for signed_pointer_to_address */
57 #include <sys/param.h> /* For MAXPATHLEN */
66 #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 (*deprecated_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 static void prompt_for_continue (void);
103 static void set_screen_size (void);
104 static void set_width (void);
106 /* Chain of cleanup actions established with make_cleanup,
107 to be executed if an error happens. */
109 static struct cleanup
*cleanup_chain
; /* cleaned up after a failed command */
110 static struct cleanup
*final_cleanup_chain
; /* cleaned up when gdb exits */
111 static struct cleanup
*run_cleanup_chain
; /* cleaned up on each 'run' */
112 static struct cleanup
*exec_cleanup_chain
; /* cleaned up on each execution command */
113 /* cleaned up on each error from within an execution command */
114 static struct cleanup
*exec_error_cleanup_chain
;
116 /* Pointer to what is left to do for an execution command after the
117 target stops. Used only in asynchronous mode, by targets that
118 support async execution. The finish and until commands use it. So
119 does the target extended-remote command. */
120 struct continuation
*cmd_continuation
;
121 struct continuation
*intermediate_continuation
;
123 /* Nonzero if we have job control. */
127 /* Nonzero means a quit has been requested. */
131 /* Nonzero means quit immediately if Control-C is typed now, rather
132 than waiting until QUIT is executed. Be careful in setting this;
133 code which executes with immediate_quit set has to be very careful
134 about being able to deal with being interrupted at any time. It is
135 almost always better to use QUIT; the only exception I can think of
136 is being able to quit out of a system call (using EINTR loses if
137 the SIGINT happens between the previous QUIT and the system call).
138 To immediately quit in the case in which a SIGINT happens between
139 the previous QUIT and setting immediate_quit (desirable anytime we
140 expect to block), call QUIT after setting immediate_quit. */
144 /* Nonzero means that encoded C++/ObjC names should be printed out in their
145 C++/ObjC form rather than raw. */
149 /* Nonzero means that encoded C++/ObjC names should be printed out in their
150 C++/ObjC form even in assembler language displays. If this is set, but
151 DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */
153 int asm_demangle
= 0;
155 /* Nonzero means that strings with character values >0x7F should be printed
156 as octal escapes. Zero means just print the value (e.g. it's an
157 international character, and the terminal or window can cope.) */
159 int sevenbit_strings
= 0;
161 /* String to be printed before error messages, if any. */
163 char *error_pre_print
;
165 /* String to be printed before quit messages, if any. */
167 char *quit_pre_print
;
169 /* String to be printed before warning messages, if any. */
171 char *warning_pre_print
= "\nwarning: ";
173 int pagination_enabled
= 1;
176 /* Add a new cleanup to the cleanup_chain,
177 and return the previous chain pointer
178 to be passed later to do_cleanups or discard_cleanups.
179 Args are FUNCTION to clean up with, and ARG to pass to it. */
182 make_cleanup (make_cleanup_ftype
*function
, void *arg
)
184 return make_my_cleanup (&cleanup_chain
, function
, arg
);
188 make_final_cleanup (make_cleanup_ftype
*function
, void *arg
)
190 return make_my_cleanup (&final_cleanup_chain
, function
, arg
);
194 make_run_cleanup (make_cleanup_ftype
*function
, void *arg
)
196 return make_my_cleanup (&run_cleanup_chain
, function
, arg
);
200 make_exec_cleanup (make_cleanup_ftype
*function
, void *arg
)
202 return make_my_cleanup (&exec_cleanup_chain
, function
, arg
);
206 make_exec_error_cleanup (make_cleanup_ftype
*function
, void *arg
)
208 return make_my_cleanup (&exec_error_cleanup_chain
, function
, arg
);
212 do_freeargv (void *arg
)
214 freeargv ((char **) arg
);
218 make_cleanup_freeargv (char **arg
)
220 return make_my_cleanup (&cleanup_chain
, do_freeargv
, arg
);
224 do_bfd_close_cleanup (void *arg
)
230 make_cleanup_bfd_close (bfd
*abfd
)
232 return make_cleanup (do_bfd_close_cleanup
, abfd
);
236 do_close_cleanup (void *arg
)
244 make_cleanup_close (int fd
)
246 int *saved_fd
= xmalloc (sizeof (fd
));
248 return make_cleanup (do_close_cleanup
, saved_fd
);
252 do_ui_file_delete (void *arg
)
254 ui_file_delete (arg
);
258 make_cleanup_ui_file_delete (struct ui_file
*arg
)
260 return make_my_cleanup (&cleanup_chain
, do_ui_file_delete
, arg
);
264 make_my_cleanup (struct cleanup
**pmy_chain
, make_cleanup_ftype
*function
,
268 = (struct cleanup
*) xmalloc (sizeof (struct cleanup
));
269 struct cleanup
*old_chain
= *pmy_chain
;
271 new->next
= *pmy_chain
;
272 new->function
= function
;
279 /* Discard cleanups and do the actions they describe
280 until we get back to the point OLD_CHAIN in the cleanup_chain. */
283 do_cleanups (struct cleanup
*old_chain
)
285 do_my_cleanups (&cleanup_chain
, old_chain
);
289 do_final_cleanups (struct cleanup
*old_chain
)
291 do_my_cleanups (&final_cleanup_chain
, old_chain
);
295 do_run_cleanups (struct cleanup
*old_chain
)
297 do_my_cleanups (&run_cleanup_chain
, old_chain
);
301 do_exec_cleanups (struct cleanup
*old_chain
)
303 do_my_cleanups (&exec_cleanup_chain
, old_chain
);
307 do_exec_error_cleanups (struct cleanup
*old_chain
)
309 do_my_cleanups (&exec_error_cleanup_chain
, old_chain
);
313 do_my_cleanups (struct cleanup
**pmy_chain
,
314 struct cleanup
*old_chain
)
317 while ((ptr
= *pmy_chain
) != old_chain
)
319 *pmy_chain
= ptr
->next
; /* Do this first incase recursion */
320 (*ptr
->function
) (ptr
->arg
);
325 /* Discard cleanups, not doing the actions they describe,
326 until we get back to the point OLD_CHAIN in the cleanup_chain. */
329 discard_cleanups (struct cleanup
*old_chain
)
331 discard_my_cleanups (&cleanup_chain
, old_chain
);
335 discard_final_cleanups (struct cleanup
*old_chain
)
337 discard_my_cleanups (&final_cleanup_chain
, old_chain
);
341 discard_exec_error_cleanups (struct cleanup
*old_chain
)
343 discard_my_cleanups (&exec_error_cleanup_chain
, old_chain
);
347 discard_my_cleanups (struct cleanup
**pmy_chain
,
348 struct cleanup
*old_chain
)
351 while ((ptr
= *pmy_chain
) != old_chain
)
353 *pmy_chain
= ptr
->next
;
358 /* Set the cleanup_chain to 0, and return the old cleanup chain. */
362 return save_my_cleanups (&cleanup_chain
);
366 save_final_cleanups (void)
368 return save_my_cleanups (&final_cleanup_chain
);
372 save_my_cleanups (struct cleanup
**pmy_chain
)
374 struct cleanup
*old_chain
= *pmy_chain
;
380 /* Restore the cleanup chain from a previously saved chain. */
382 restore_cleanups (struct cleanup
*chain
)
384 restore_my_cleanups (&cleanup_chain
, chain
);
388 restore_final_cleanups (struct cleanup
*chain
)
390 restore_my_cleanups (&final_cleanup_chain
, chain
);
394 restore_my_cleanups (struct cleanup
**pmy_chain
, struct cleanup
*chain
)
399 /* This function is useful for cleanups.
403 old_chain = make_cleanup (free_current_contents, &foo);
405 to arrange to free the object thus allocated. */
408 free_current_contents (void *ptr
)
410 void **location
= ptr
;
411 if (location
== NULL
)
412 internal_error (__FILE__
, __LINE__
,
413 "free_current_contents: NULL pointer");
414 if (*location
!= NULL
)
421 /* Provide a known function that does nothing, to use as a base for
422 for a possibly long chain of cleanups. This is useful where we
423 use the cleanup chain for handling normal cleanups as well as dealing
424 with cleanups that need to be done as a result of a call to error().
425 In such cases, we may not be certain where the first cleanup is, unless
426 we have a do-nothing one to always use as the base. */
429 null_cleanup (void *arg
)
433 /* Add a continuation to the continuation list, the global list
434 cmd_continuation. The new continuation will be added at the front.*/
436 add_continuation (void (*continuation_hook
) (struct continuation_arg
*),
437 struct continuation_arg
*arg_list
)
439 struct continuation
*continuation_ptr
;
442 (struct continuation
*) xmalloc (sizeof (struct continuation
));
443 continuation_ptr
->continuation_hook
= continuation_hook
;
444 continuation_ptr
->arg_list
= arg_list
;
445 continuation_ptr
->next
= cmd_continuation
;
446 cmd_continuation
= continuation_ptr
;
449 /* Walk down the cmd_continuation list, and execute all the
450 continuations. There is a problem though. In some cases new
451 continuations may be added while we are in the middle of this
452 loop. If this happens they will be added in the front, and done
453 before we have a chance of exhausting those that were already
454 there. We need to then save the beginning of the list in a pointer
455 and do the continuations from there on, instead of using the
456 global beginning of list as our iteration pointer.*/
458 do_all_continuations (void)
460 struct continuation
*continuation_ptr
;
461 struct continuation
*saved_continuation
;
463 /* Copy the list header into another pointer, and set the global
464 list header to null, so that the global list can change as a side
465 effect of invoking the continuations and the processing of
466 the preexisting continuations will not be affected. */
467 continuation_ptr
= cmd_continuation
;
468 cmd_continuation
= NULL
;
470 /* Work now on the list we have set aside. */
471 while (continuation_ptr
)
473 (continuation_ptr
->continuation_hook
) (continuation_ptr
->arg_list
);
474 saved_continuation
= continuation_ptr
;
475 continuation_ptr
= continuation_ptr
->next
;
476 xfree (saved_continuation
);
480 /* Walk down the cmd_continuation list, and get rid of all the
483 discard_all_continuations (void)
485 struct continuation
*continuation_ptr
;
487 while (cmd_continuation
)
489 continuation_ptr
= cmd_continuation
;
490 cmd_continuation
= continuation_ptr
->next
;
491 xfree (continuation_ptr
);
495 /* Add a continuation to the continuation list, the global list
496 intermediate_continuation. The new continuation will be added at the front.*/
498 add_intermediate_continuation (void (*continuation_hook
)
499 (struct continuation_arg
*),
500 struct continuation_arg
*arg_list
)
502 struct continuation
*continuation_ptr
;
505 (struct continuation
*) xmalloc (sizeof (struct continuation
));
506 continuation_ptr
->continuation_hook
= continuation_hook
;
507 continuation_ptr
->arg_list
= arg_list
;
508 continuation_ptr
->next
= intermediate_continuation
;
509 intermediate_continuation
= continuation_ptr
;
512 /* Walk down the cmd_continuation list, and execute all the
513 continuations. There is a problem though. In some cases new
514 continuations may be added while we are in the middle of this
515 loop. If this happens they will be added in the front, and done
516 before we have a chance of exhausting those that were already
517 there. We need to then save the beginning of the list in a pointer
518 and do the continuations from there on, instead of using the
519 global beginning of list as our iteration pointer.*/
521 do_all_intermediate_continuations (void)
523 struct continuation
*continuation_ptr
;
524 struct continuation
*saved_continuation
;
526 /* Copy the list header into another pointer, and set the global
527 list header to null, so that the global list can change as a side
528 effect of invoking the continuations and the processing of
529 the preexisting continuations will not be affected. */
530 continuation_ptr
= intermediate_continuation
;
531 intermediate_continuation
= NULL
;
533 /* Work now on the list we have set aside. */
534 while (continuation_ptr
)
536 (continuation_ptr
->continuation_hook
) (continuation_ptr
->arg_list
);
537 saved_continuation
= continuation_ptr
;
538 continuation_ptr
= continuation_ptr
->next
;
539 xfree (saved_continuation
);
543 /* Walk down the cmd_continuation list, and get rid of all the
546 discard_all_intermediate_continuations (void)
548 struct continuation
*continuation_ptr
;
550 while (intermediate_continuation
)
552 continuation_ptr
= intermediate_continuation
;
553 intermediate_continuation
= continuation_ptr
->next
;
554 xfree (continuation_ptr
);
560 /* Print a warning message. The first argument STRING is the warning
561 message, used as an fprintf format string, the second is the
562 va_list of arguments for that string. A warning is unfiltered (not
563 paginated) so that the user does not need to page through each
564 screen full of warnings when there are lots of them. */
567 vwarning (const char *string
, va_list args
)
569 if (deprecated_warning_hook
)
570 (*deprecated_warning_hook
) (string
, args
);
573 target_terminal_ours ();
574 wrap_here (""); /* Force out any buffered output */
575 gdb_flush (gdb_stdout
);
576 if (warning_pre_print
)
577 fputs_unfiltered (warning_pre_print
, gdb_stderr
);
578 vfprintf_unfiltered (gdb_stderr
, string
, args
);
579 fprintf_unfiltered (gdb_stderr
, "\n");
584 /* Print a warning message.
585 The first argument STRING is the warning message, used as a fprintf string,
586 and the remaining args are passed as arguments to it.
587 The primary difference between warnings and errors is that a warning
588 does not force the return to command level. */
591 warning (const char *string
, ...)
594 va_start (args
, string
);
595 vwarning (string
, args
);
599 /* Print an error message and return to command level.
600 The first argument STRING is the error message, used as a fprintf string,
601 and the remaining args are passed as arguments to it. */
604 verror (const char *string
, va_list args
)
606 struct ui_file
*tmp_stream
= mem_fileopen ();
607 make_cleanup_ui_file_delete (tmp_stream
);
608 vfprintf_unfiltered (tmp_stream
, string
, args
);
609 error_stream (tmp_stream
);
613 error (const char *string
, ...)
616 va_start (args
, string
);
617 verror (string
, args
);
622 do_write (void *data
, const char *buffer
, long length_buffer
)
624 ui_file_write (data
, buffer
, length_buffer
);
627 /* Cause a silent error to occur. Any error message is recorded
628 though it is not issued. */
630 error_silent (const char *string
, ...)
633 struct ui_file
*tmp_stream
= mem_fileopen ();
634 va_start (args
, string
);
635 make_cleanup_ui_file_delete (tmp_stream
);
636 vfprintf_unfiltered (tmp_stream
, string
, args
);
637 /* Copy the stream into the GDB_LASTERR buffer. */
638 ui_file_rewind (gdb_lasterr
);
639 ui_file_put (tmp_stream
, do_write
, gdb_lasterr
);
642 throw_exception (RETURN_ERROR
);
645 /* Output an error message including any pre-print text to gdb_stderr. */
647 error_output_message (char *pre_print
, char *msg
)
649 target_terminal_ours ();
650 wrap_here (""); /* Force out any buffered output */
651 gdb_flush (gdb_stdout
);
652 annotate_error_begin ();
654 fputs_filtered (pre_print
, gdb_stderr
);
655 fputs_filtered (msg
, gdb_stderr
);
656 fprintf_filtered (gdb_stderr
, "\n");
660 error_stream (struct ui_file
*stream
)
662 if (deprecated_error_begin_hook
)
663 deprecated_error_begin_hook ();
665 /* Copy the stream into the GDB_LASTERR buffer. */
666 ui_file_rewind (gdb_lasterr
);
667 ui_file_put (stream
, do_write
, gdb_lasterr
);
669 /* Write the message plus any error_pre_print to gdb_stderr. */
670 target_terminal_ours ();
671 wrap_here (""); /* Force out any buffered output */
672 gdb_flush (gdb_stdout
);
673 annotate_error_begin ();
675 fputs_filtered (error_pre_print
, gdb_stderr
);
676 ui_file_put (stream
, do_write
, gdb_stderr
);
677 fprintf_filtered (gdb_stderr
, "\n");
679 throw_exception (RETURN_ERROR
);
682 /* Get the last error message issued by gdb */
685 error_last_message (void)
688 return ui_file_xstrdup (gdb_lasterr
, &len
);
691 /* This is to be called by main() at the very beginning */
696 gdb_lasterr
= mem_fileopen ();
699 /* Print a message reporting an internal error/warning. Ask the user
700 if they want to continue, dump core, or just exit. Return
701 something to indicate a quit. */
703 struct internal_problem
706 /* FIXME: cagney/2002-08-15: There should be ``maint set/show''
707 commands available for controlling these variables. */
708 enum auto_boolean should_quit
;
709 enum auto_boolean should_dump_core
;
712 /* Report a problem, internal to GDB, to the user. Once the problem
713 has been reported, and assuming GDB didn't quit, the caller can
714 either allow execution to resume or throw an error. */
717 internal_vproblem (struct internal_problem
*problem
,
718 const char *file
, int line
, const char *fmt
, va_list ap
)
725 /* Don't allow infinite error/warning recursion. */
727 static char msg
[] = "Recursive internal problem.\n";
735 fputs_unfiltered (msg
, gdb_stderr
);
736 abort (); /* NOTE: GDB has only three calls to abort(). */
739 write (STDERR_FILENO
, msg
, sizeof (msg
));
744 /* Try to get the message out and at the start of a new line. */
745 target_terminal_ours ();
748 /* Create a string containing the full error/warning message. Need
749 to call query with this full string, as otherwize the reason
750 (error/warning) and question become separated. Format using a
751 style similar to a compiler error message. Include extra detail
752 so that the user knows that they are living on the edge. */
755 msg
= xstrvprintf (fmt
, ap
);
756 reason
= xstrprintf ("\
758 A problem internal to GDB has been detected,\n\
759 further debugging may prove unreliable.", file
, line
, problem
->name
, msg
);
761 make_cleanup (xfree
, reason
);
764 switch (problem
->should_quit
)
766 case AUTO_BOOLEAN_AUTO
:
767 /* Default (yes/batch case) is to quit GDB. When in batch mode
768 this lessens the likelhood of GDB going into an infinate
770 quit_p
= query ("%s\nQuit this debugging session? ", reason
);
772 case AUTO_BOOLEAN_TRUE
:
775 case AUTO_BOOLEAN_FALSE
:
779 internal_error (__FILE__
, __LINE__
, "bad switch");
782 switch (problem
->should_dump_core
)
784 case AUTO_BOOLEAN_AUTO
:
785 /* Default (yes/batch case) is to dump core. This leaves a GDB
786 `dropping' so that it is easier to see that something went
788 dump_core_p
= query ("%s\nCreate a core file of GDB? ", reason
);
791 case AUTO_BOOLEAN_TRUE
:
794 case AUTO_BOOLEAN_FALSE
:
798 internal_error (__FILE__
, __LINE__
, "bad switch");
804 abort (); /* NOTE: GDB has only three calls to abort(). */
813 abort (); /* NOTE: GDB has only three calls to abort(). */
820 static struct internal_problem internal_error_problem
= {
821 "internal-error", AUTO_BOOLEAN_AUTO
, AUTO_BOOLEAN_AUTO
825 internal_verror (const char *file
, int line
, const char *fmt
, va_list ap
)
827 internal_vproblem (&internal_error_problem
, file
, line
, fmt
, ap
);
828 throw_exception (RETURN_ERROR
);
832 internal_error (const char *file
, int line
, const char *string
, ...)
835 va_start (ap
, string
);
836 internal_verror (file
, line
, string
, ap
);
840 static struct internal_problem internal_warning_problem
= {
841 "internal-warning", AUTO_BOOLEAN_AUTO
, AUTO_BOOLEAN_AUTO
845 internal_vwarning (const char *file
, int line
, const char *fmt
, va_list ap
)
847 internal_vproblem (&internal_warning_problem
, file
, line
, fmt
, ap
);
851 internal_warning (const char *file
, int line
, const char *string
, ...)
854 va_start (ap
, string
);
855 internal_vwarning (file
, line
, string
, ap
);
859 /* The strerror() function can return NULL for errno values that are
860 out of range. Provide a "safe" version that always returns a
864 safe_strerror (int errnum
)
869 msg
= strerror (errnum
);
872 sprintf (buf
, "(undocumented errno %d)", errnum
);
878 /* Print the system error message for errno, and also mention STRING
879 as the file name for which the error was encountered.
880 Then return to command level. */
883 perror_with_name (const char *string
)
888 err
= safe_strerror (errno
);
889 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
890 strcpy (combined
, string
);
891 strcat (combined
, ": ");
892 strcat (combined
, err
);
894 /* I understand setting these is a matter of taste. Still, some people
895 may clear errno but not know about bfd_error. Doing this here is not
897 bfd_set_error (bfd_error_no_error
);
900 error ("%s.", combined
);
903 /* Print the system error message for ERRCODE, and also mention STRING
904 as the file name for which the error was encountered. */
907 print_sys_errmsg (const char *string
, int errcode
)
912 err
= safe_strerror (errcode
);
913 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
914 strcpy (combined
, string
);
915 strcat (combined
, ": ");
916 strcat (combined
, err
);
918 /* We want anything which was printed on stdout to come out first, before
920 gdb_flush (gdb_stdout
);
921 fprintf_unfiltered (gdb_stderr
, "%s.\n", combined
);
924 /* Control C eventually causes this to be called, at a convenient time. */
929 struct serial
*gdb_stdout_serial
= serial_fdopen (1);
931 target_terminal_ours ();
933 /* We want all output to appear now, before we print "Quit". We
934 have 3 levels of buffering we have to flush (it's possible that
935 some of these should be changed to flush the lower-level ones
938 /* 1. The _filtered buffer. */
939 wrap_here ((char *) 0);
941 /* 2. The stdio buffer. */
942 gdb_flush (gdb_stdout
);
943 gdb_flush (gdb_stderr
);
945 /* 3. The system-level buffer. */
946 serial_drain_output (gdb_stdout_serial
);
947 serial_un_fdopen (gdb_stdout_serial
);
949 annotate_error_begin ();
951 /* Don't use *_filtered; we don't want to prompt the user to continue. */
953 fputs_unfiltered (quit_pre_print
, gdb_stderr
);
956 /* No steenking SIGINT will ever be coming our way when the
957 program is resumed. Don't lie. */
958 fprintf_unfiltered (gdb_stderr
, "Quit\n");
961 /* If there is no terminal switching for this target, then we can't
962 possibly get screwed by the lack of job control. */
963 || current_target
.to_terminal_ours
== NULL
)
964 fprintf_unfiltered (gdb_stderr
, "Quit\n");
966 fprintf_unfiltered (gdb_stderr
,
967 "Quit (expect signal SIGINT when the program is resumed)\n");
969 throw_exception (RETURN_QUIT
);
972 /* Control C comes here */
974 request_quit (int signo
)
977 /* Restore the signal handler. Harmless with BSD-style signals,
978 needed for System V-style signals. */
979 signal (signo
, request_quit
);
985 /* Called when a memory allocation fails, with the number of bytes of
986 memory requested in SIZE. */
993 internal_error (__FILE__
, __LINE__
,
994 "virtual memory exhausted: can't allocate %ld bytes.",
999 internal_error (__FILE__
, __LINE__
, "virtual memory exhausted.");
1003 /* The xmalloc() (libiberty.h) family of memory management routines.
1005 These are like the ISO-C malloc() family except that they implement
1006 consistent semantics and guard against typical memory management
1009 /* NOTE: These are declared using PTR to ensure consistency with
1010 "libiberty.h". xfree() is GDB local. */
1013 xmalloc (size_t size
)
1017 /* See libiberty/xmalloc.c. This function need's to match that's
1018 semantics. It never returns NULL. */
1022 val
= malloc (size
); /* OK: malloc */
1030 xrealloc (PTR ptr
, size_t size
) /* OK: PTR */
1034 /* See libiberty/xmalloc.c. This function need's to match that's
1035 semantics. It never returns NULL. */
1040 val
= realloc (ptr
, size
); /* OK: realloc */
1042 val
= malloc (size
); /* OK: malloc */
1050 xcalloc (size_t number
, size_t size
)
1054 /* See libiberty/xmalloc.c. This function need's to match that's
1055 semantics. It never returns NULL. */
1056 if (number
== 0 || size
== 0)
1062 mem
= calloc (number
, size
); /* OK: xcalloc */
1064 nomem (number
* size
);
1073 free (ptr
); /* OK: free */
1077 /* Like asprintf/vasprintf but get an internal_error if the call
1081 xstrprintf (const char *format
, ...)
1085 va_start (args
, format
);
1086 ret
= xstrvprintf (format
, args
);
1092 xasprintf (char **ret
, const char *format
, ...)
1095 va_start (args
, format
);
1096 (*ret
) = xstrvprintf (format
, args
);
1101 xvasprintf (char **ret
, const char *format
, va_list ap
)
1103 (*ret
) = xstrvprintf (format
, ap
);
1107 xstrvprintf (const char *format
, va_list ap
)
1110 int status
= vasprintf (&ret
, format
, ap
);
1111 /* NULL is returned when there was a memory allocation problem. */
1114 /* A negative status (the printed length) with a non-NULL buffer
1115 should never happen, but just to be sure. */
1117 internal_error (__FILE__
, __LINE__
,
1118 "vasprintf call failed (errno %d)", errno
);
1122 /* My replacement for the read system call.
1123 Used like `read' but keeps going if `read' returns too soon. */
1126 myread (int desc
, char *addr
, int len
)
1133 val
= read (desc
, addr
, len
);
1137 return orglen
- len
;
1144 /* Make a copy of the string at PTR with SIZE characters
1145 (and add a null character at the end in the copy).
1146 Uses malloc to get the space. Returns the address of the copy. */
1149 savestring (const char *ptr
, size_t size
)
1151 char *p
= (char *) xmalloc (size
+ 1);
1152 memcpy (p
, ptr
, size
);
1158 msavestring (void *md
, const char *ptr
, size_t size
)
1160 char *p
= (char *) xmalloc (size
+ 1);
1161 memcpy (p
, ptr
, size
);
1167 mstrsave (void *md
, const char *ptr
)
1169 return (msavestring (md
, ptr
, strlen (ptr
)));
1173 print_spaces (int n
, struct ui_file
*file
)
1175 fputs_unfiltered (n_spaces (n
), file
);
1178 /* Print a host address. */
1181 gdb_print_host_address (const void *addr
, struct ui_file
*stream
)
1184 /* We could use the %p conversion specifier to fprintf if we had any
1185 way of knowing whether this host supports it. But the following
1186 should work on the Alpha and on 32 bit machines. */
1188 fprintf_filtered (stream
, "0x%lx", (unsigned long) addr
);
1191 /* Ask user a y-or-n question and return 1 iff answer is yes.
1192 Takes three args which are given to printf to print the question.
1193 The first, a control string, should end in "? ".
1194 It should not say how to answer, because we do that. */
1198 query (const char *ctlstr
, ...)
1205 if (deprecated_query_hook
)
1207 va_start (args
, ctlstr
);
1208 return deprecated_query_hook (ctlstr
, args
);
1211 /* Automatically answer "yes" if input is not from a terminal. */
1212 if (!input_from_terminal_p ())
1217 wrap_here (""); /* Flush any buffered output */
1218 gdb_flush (gdb_stdout
);
1220 if (annotation_level
> 1)
1221 printf_filtered ("\n\032\032pre-query\n");
1223 va_start (args
, ctlstr
);
1224 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1226 printf_filtered ("(y or n) ");
1228 if (annotation_level
> 1)
1229 printf_filtered ("\n\032\032query\n");
1232 gdb_flush (gdb_stdout
);
1234 answer
= fgetc (stdin
);
1235 clearerr (stdin
); /* in case of C-d */
1236 if (answer
== EOF
) /* C-d */
1241 /* Eat rest of input line, to EOF or newline */
1245 ans2
= fgetc (stdin
);
1248 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1262 printf_filtered ("Please answer y or n.\n");
1265 if (annotation_level
> 1)
1266 printf_filtered ("\n\032\032post-query\n");
1271 /* This function supports the nquery() and yquery() functions.
1272 Ask user a y-or-n question and return 0 if answer is no, 1 if
1273 answer is yes, or default the answer to the specified default.
1274 DEFCHAR is either 'y' or 'n' and refers to the default answer.
1275 CTLSTR is the control string and should end in "? ". It should
1276 not say how to answer, because we do that.
1277 ARGS are the arguments passed along with the CTLSTR argument to
1281 defaulted_query (const char *ctlstr
, const char defchar
, va_list args
)
1287 char def_answer
, not_def_answer
;
1288 char *y_string
, *n_string
;
1290 /* Set up according to which answer is the default. */
1295 not_def_answer
= 'N';
1303 not_def_answer
= 'Y';
1308 if (deprecated_query_hook
)
1310 return deprecated_query_hook (ctlstr
, args
);
1313 /* Automatically answer default value if input is not from a terminal. */
1314 if (!input_from_terminal_p ())
1319 wrap_here (""); /* Flush any buffered output */
1320 gdb_flush (gdb_stdout
);
1322 if (annotation_level
> 1)
1323 printf_filtered ("\n\032\032pre-query\n");
1325 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1326 printf_filtered ("(%s or %s) ", y_string
, n_string
);
1328 if (annotation_level
> 1)
1329 printf_filtered ("\n\032\032query\n");
1332 gdb_flush (gdb_stdout
);
1334 answer
= fgetc (stdin
);
1335 clearerr (stdin
); /* in case of C-d */
1336 if (answer
== EOF
) /* C-d */
1341 /* Eat rest of input line, to EOF or newline */
1345 ans2
= fgetc (stdin
);
1348 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1352 /* Check answer. For the non-default, the user must specify
1353 the non-default explicitly. */
1354 if (answer
== not_def_answer
)
1356 retval
= !def_value
;
1359 /* Otherwise, for the default, the user may either specify
1360 the required input or have it default by entering nothing. */
1361 if (answer
== def_answer
|| answer
== '\n' ||
1362 answer
== '\r' || answer
== EOF
)
1367 /* Invalid entries are not defaulted and require another selection. */
1368 printf_filtered ("Please answer %s or %s.\n",
1369 y_string
, n_string
);
1372 if (annotation_level
> 1)
1373 printf_filtered ("\n\032\032post-query\n");
1378 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1379 answer is yes, or 0 if answer is defaulted.
1380 Takes three args which are given to printf to print the question.
1381 The first, a control string, should end in "? ".
1382 It should not say how to answer, because we do that. */
1385 nquery (const char *ctlstr
, ...)
1389 va_start (args
, ctlstr
);
1390 return defaulted_query (ctlstr
, 'n', args
);
1394 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1395 answer is yes, or 1 if answer is defaulted.
1396 Takes three args which are given to printf to print the question.
1397 The first, a control string, should end in "? ".
1398 It should not say how to answer, because we do that. */
1401 yquery (const char *ctlstr
, ...)
1405 va_start (args
, ctlstr
);
1406 return defaulted_query (ctlstr
, 'y', args
);
1410 /* Print an error message saying that we couldn't make sense of a
1411 \^mumble sequence in a string or character constant. START and END
1412 indicate a substring of some larger string that contains the
1413 erroneous backslash sequence, missing the initial backslash. */
1415 no_control_char_error (const char *start
, const char *end
)
1417 int len
= end
- start
;
1418 char *copy
= alloca (end
- start
+ 1);
1420 memcpy (copy
, start
, len
);
1423 error ("There is no control character `\\%s' in the `%s' character set.",
1424 copy
, target_charset ());
1427 /* Parse a C escape sequence. STRING_PTR points to a variable
1428 containing a pointer to the string to parse. That pointer
1429 should point to the character after the \. That pointer
1430 is updated past the characters we use. The value of the
1431 escape sequence is returned.
1433 A negative value means the sequence \ newline was seen,
1434 which is supposed to be equivalent to nothing at all.
1436 If \ is followed by a null character, we return a negative
1437 value and leave the string pointer pointing at the null character.
1439 If \ is followed by 000, we return 0 and leave the string pointer
1440 after the zeros. A value of 0 does not mean end of string. */
1443 parse_escape (char **string_ptr
)
1446 int c
= *(*string_ptr
)++;
1447 if (c_parse_backslash (c
, &target_char
))
1459 /* Remember where this escape sequence started, for reporting
1461 char *sequence_start_pos
= *string_ptr
- 1;
1463 c
= *(*string_ptr
)++;
1467 /* XXXCHARSET: What is `delete' in the host character set? */
1470 if (!host_char_to_target (c
, &target_char
))
1471 error ("There is no character corresponding to `Delete' "
1472 "in the target character set `%s'.", host_charset ());
1477 target_char
= parse_escape (string_ptr
);
1480 if (!host_char_to_target (c
, &target_char
))
1481 no_control_char_error (sequence_start_pos
, *string_ptr
);
1484 /* Now target_char is something like `c', and we want to find
1485 its control-character equivalent. */
1486 if (!target_char_to_control_char (target_char
, &target_char
))
1487 no_control_char_error (sequence_start_pos
, *string_ptr
);
1492 /* XXXCHARSET: we need to use isdigit and value-of-digit
1493 methods of the host character set here. */
1509 if (c
>= '0' && c
<= '7')
1523 if (!host_char_to_target (c
, &target_char
))
1525 ("The escape sequence `\%c' is equivalent to plain `%c', which"
1526 " has no equivalent\n" "in the `%s' character set.", c
, c
,
1532 /* Print the character C on STREAM as part of the contents of a literal
1533 string whose delimiter is QUOTER. Note that this routine should only
1534 be call for printing things which are independent of the language
1535 of the program being debugged. */
1538 printchar (int c
, void (*do_fputs
) (const char *, struct ui_file
*),
1539 void (*do_fprintf
) (struct ui_file
*, const char *, ...),
1540 struct ui_file
*stream
, int quoter
)
1543 c
&= 0xFF; /* Avoid sign bit follies */
1545 if (c
< 0x20 || /* Low control chars */
1546 (c
>= 0x7F && c
< 0xA0) || /* DEL, High controls */
1547 (sevenbit_strings
&& c
>= 0x80))
1548 { /* high order bit set */
1552 do_fputs ("\\n", stream
);
1555 do_fputs ("\\b", stream
);
1558 do_fputs ("\\t", stream
);
1561 do_fputs ("\\f", stream
);
1564 do_fputs ("\\r", stream
);
1567 do_fputs ("\\e", stream
);
1570 do_fputs ("\\a", stream
);
1573 do_fprintf (stream
, "\\%.3o", (unsigned int) c
);
1579 if (c
== '\\' || c
== quoter
)
1580 do_fputs ("\\", stream
);
1581 do_fprintf (stream
, "%c", c
);
1585 /* Print the character C on STREAM as part of the contents of a
1586 literal string whose delimiter is QUOTER. Note that these routines
1587 should only be call for printing things which are independent of
1588 the language of the program being debugged. */
1591 fputstr_filtered (const char *str
, int quoter
, struct ui_file
*stream
)
1594 printchar (*str
++, fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1598 fputstr_unfiltered (const char *str
, int quoter
, struct ui_file
*stream
)
1601 printchar (*str
++, fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1605 fputstrn_unfiltered (const char *str
, int n
, int quoter
,
1606 struct ui_file
*stream
)
1609 for (i
= 0; i
< n
; i
++)
1610 printchar (str
[i
], fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1614 /* Number of lines per page or UINT_MAX if paging is disabled. */
1615 static unsigned int lines_per_page
;
1617 /* Number of chars per line or UINT_MAX if line folding is disabled. */
1618 static unsigned int chars_per_line
;
1620 /* Current count of lines printed on this page, chars on this line. */
1621 static unsigned int lines_printed
, chars_printed
;
1623 /* Buffer and start column of buffered text, for doing smarter word-
1624 wrapping. When someone calls wrap_here(), we start buffering output
1625 that comes through fputs_filtered(). If we see a newline, we just
1626 spit it out and forget about the wrap_here(). If we see another
1627 wrap_here(), we spit it out and remember the newer one. If we see
1628 the end of the line, we spit out a newline, the indent, and then
1629 the buffered output. */
1631 /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which
1632 are waiting to be output (they have already been counted in chars_printed).
1633 When wrap_buffer[0] is null, the buffer is empty. */
1634 static char *wrap_buffer
;
1636 /* Pointer in wrap_buffer to the next character to fill. */
1637 static char *wrap_pointer
;
1639 /* String to indent by if the wrap occurs. Must not be NULL if wrap_column
1641 static char *wrap_indent
;
1643 /* Column number on the screen where wrap_buffer begins, or 0 if wrapping
1644 is not in effect. */
1645 static int wrap_column
;
1648 /* Inialize the number of lines per page and chars per line. */
1651 init_page_info (void)
1654 if (!tui_get_command_dimension (&chars_per_line
, &lines_per_page
))
1659 #if defined(__GO32__)
1660 rows
= ScreenRows ();
1661 cols
= ScreenCols ();
1662 lines_per_page
= rows
;
1663 chars_per_line
= cols
;
1665 /* Make sure Readline has initialized its terminal settings. */
1666 rl_reset_terminal (NULL
);
1668 /* Get the screen size from Readline. */
1669 rl_get_screen_size (&rows
, &cols
);
1670 lines_per_page
= rows
;
1671 chars_per_line
= cols
;
1673 /* Readline should have fetched the termcap entry for us. */
1674 if (tgetnum ("li") < 0 || getenv ("EMACS"))
1676 /* The number of lines per page is not mentioned in the
1677 terminal description. This probably means that paging is
1678 not useful (e.g. emacs shell window), so disable paging. */
1679 lines_per_page
= UINT_MAX
;
1682 /* FIXME: Get rid of this junk. */
1683 #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
1684 SIGWINCH_HANDLER (SIGWINCH
);
1687 /* If the output is not a terminal, don't paginate it. */
1688 if (!ui_file_isatty (gdb_stdout
))
1689 lines_per_page
= UINT_MAX
;
1697 /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */
1700 set_screen_size (void)
1702 int rows
= lines_per_page
;
1703 int cols
= chars_per_line
;
1709 rl_get_screen_size (NULL
, &cols
);
1711 /* Update Readline's idea of the terminal size. */
1712 rl_set_screen_size (rows
, cols
);
1715 /* Reinitialize WRAP_BUFFER according to the current value of
1721 if (chars_per_line
== 0)
1726 wrap_buffer
= (char *) xmalloc (chars_per_line
+ 2);
1727 wrap_buffer
[0] = '\0';
1730 wrap_buffer
= (char *) xrealloc (wrap_buffer
, chars_per_line
+ 2);
1731 wrap_pointer
= wrap_buffer
; /* Start it at the beginning. */
1735 set_width_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1742 set_height_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1747 /* Wait, so the user can read what's on the screen. Prompt the user
1748 to continue by pressing RETURN. */
1751 prompt_for_continue (void)
1754 char cont_prompt
[120];
1756 if (annotation_level
> 1)
1757 printf_unfiltered ("\n\032\032pre-prompt-for-continue\n");
1759 strcpy (cont_prompt
,
1760 "---Type <return> to continue, or q <return> to quit---");
1761 if (annotation_level
> 1)
1762 strcat (cont_prompt
, "\n\032\032prompt-for-continue\n");
1764 /* We must do this *before* we call gdb_readline, else it will eventually
1765 call us -- thinking that we're trying to print beyond the end of the
1767 reinitialize_more_filter ();
1770 /* On a real operating system, the user can quit with SIGINT.
1773 'q' is provided on all systems so users don't have to change habits
1774 from system to system, and because telling them what to do in
1775 the prompt is more user-friendly than expecting them to think of
1777 /* Call readline, not gdb_readline, because GO32 readline handles control-C
1778 whereas control-C to gdb_readline will cause the user to get dumped
1780 ignore
= gdb_readline_wrapper (cont_prompt
);
1782 if (annotation_level
> 1)
1783 printf_unfiltered ("\n\032\032post-prompt-for-continue\n");
1788 while (*p
== ' ' || *p
== '\t')
1793 request_quit (SIGINT
);
1795 async_request_quit (0);
1801 /* Now we have to do this again, so that GDB will know that it doesn't
1802 need to save the ---Type <return>--- line at the top of the screen. */
1803 reinitialize_more_filter ();
1805 dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */
1808 /* Reinitialize filter; ie. tell it to reset to original values. */
1811 reinitialize_more_filter (void)
1817 /* Indicate that if the next sequence of characters overflows the line,
1818 a newline should be inserted here rather than when it hits the end.
1819 If INDENT is non-null, it is a string to be printed to indent the
1820 wrapped part on the next line. INDENT must remain accessible until
1821 the next call to wrap_here() or until a newline is printed through
1824 If the line is already overfull, we immediately print a newline and
1825 the indentation, and disable further wrapping.
1827 If we don't know the width of lines, but we know the page height,
1828 we must not wrap words, but should still keep track of newlines
1829 that were explicitly printed.
1831 INDENT should not contain tabs, as that will mess up the char count
1832 on the next line. FIXME.
1834 This routine is guaranteed to force out any output which has been
1835 squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be
1836 used to force out output from the wrap_buffer. */
1839 wrap_here (char *indent
)
1841 /* This should have been allocated, but be paranoid anyway. */
1843 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
1847 *wrap_pointer
= '\0';
1848 fputs_unfiltered (wrap_buffer
, gdb_stdout
);
1850 wrap_pointer
= wrap_buffer
;
1851 wrap_buffer
[0] = '\0';
1852 if (chars_per_line
== UINT_MAX
) /* No line overflow checking */
1856 else if (chars_printed
>= chars_per_line
)
1858 puts_filtered ("\n");
1860 puts_filtered (indent
);
1865 wrap_column
= chars_printed
;
1869 wrap_indent
= indent
;
1873 /* Print input string to gdb_stdout, filtered, with wrap,
1874 arranging strings in columns of n chars. String can be
1875 right or left justified in the column. Never prints
1876 trailing spaces. String should never be longer than
1877 width. FIXME: this could be useful for the EXAMINE
1878 command, which currently doesn't tabulate very well */
1881 puts_filtered_tabular (char *string
, int width
, int right
)
1887 gdb_assert (chars_per_line
> 0);
1888 if (chars_per_line
== UINT_MAX
)
1890 fputs_filtered (string
, gdb_stdout
);
1891 fputs_filtered ("\n", gdb_stdout
);
1895 if (((chars_printed
- 1) / width
+ 2) * width
>= chars_per_line
)
1896 fputs_filtered ("\n", gdb_stdout
);
1898 if (width
>= chars_per_line
)
1899 width
= chars_per_line
- 1;
1901 stringlen
= strlen (string
);
1903 if (chars_printed
> 0)
1904 spaces
= width
- (chars_printed
- 1) % width
- 1;
1906 spaces
+= width
- stringlen
;
1908 spacebuf
= alloca (spaces
+ 1);
1909 spacebuf
[spaces
] = '\0';
1911 spacebuf
[spaces
] = ' ';
1913 fputs_filtered (spacebuf
, gdb_stdout
);
1914 fputs_filtered (string
, gdb_stdout
);
1918 /* Ensure that whatever gets printed next, using the filtered output
1919 commands, starts at the beginning of the line. I.E. if there is
1920 any pending output for the current line, flush it and start a new
1921 line. Otherwise do nothing. */
1926 if (chars_printed
> 0)
1928 puts_filtered ("\n");
1933 /* Like fputs but if FILTER is true, pause after every screenful.
1935 Regardless of FILTER can wrap at points other than the final
1936 character of a line.
1938 Unlike fputs, fputs_maybe_filtered does not return a value.
1939 It is OK for LINEBUFFER to be NULL, in which case just don't print
1942 Note that a longjmp to top level may occur in this routine (only if
1943 FILTER is true) (since prompt_for_continue may do so) so this
1944 routine should not be called when cleanups are not in place. */
1947 fputs_maybe_filtered (const char *linebuffer
, struct ui_file
*stream
,
1950 const char *lineptr
;
1952 if (linebuffer
== 0)
1955 /* Don't do any filtering if it is disabled. */
1956 if ((stream
!= gdb_stdout
) || !pagination_enabled
1957 || (lines_per_page
== UINT_MAX
&& chars_per_line
== UINT_MAX
))
1959 fputs_unfiltered (linebuffer
, stream
);
1963 /* Go through and output each character. Show line extension
1964 when this is necessary; prompt user for new page when this is
1967 lineptr
= linebuffer
;
1970 /* Possible new page. */
1971 if (filter
&& (lines_printed
>= lines_per_page
- 1))
1972 prompt_for_continue ();
1974 while (*lineptr
&& *lineptr
!= '\n')
1976 /* Print a single line. */
1977 if (*lineptr
== '\t')
1980 *wrap_pointer
++ = '\t';
1982 fputc_unfiltered ('\t', stream
);
1983 /* Shifting right by 3 produces the number of tab stops
1984 we have already passed, and then adding one and
1985 shifting left 3 advances to the next tab stop. */
1986 chars_printed
= ((chars_printed
>> 3) + 1) << 3;
1992 *wrap_pointer
++ = *lineptr
;
1994 fputc_unfiltered (*lineptr
, stream
);
1999 if (chars_printed
>= chars_per_line
)
2001 unsigned int save_chars
= chars_printed
;
2005 /* If we aren't actually wrapping, don't output newline --
2006 if chars_per_line is right, we probably just overflowed
2007 anyway; if it's wrong, let us keep going. */
2009 fputc_unfiltered ('\n', stream
);
2011 /* Possible new page. */
2012 if (lines_printed
>= lines_per_page
- 1)
2013 prompt_for_continue ();
2015 /* Now output indentation and wrapped string */
2018 fputs_unfiltered (wrap_indent
, stream
);
2019 *wrap_pointer
= '\0'; /* Null-terminate saved stuff */
2020 fputs_unfiltered (wrap_buffer
, stream
); /* and eject it */
2021 /* FIXME, this strlen is what prevents wrap_indent from
2022 containing tabs. However, if we recurse to print it
2023 and count its chars, we risk trouble if wrap_indent is
2024 longer than (the user settable) chars_per_line.
2025 Note also that this can set chars_printed > chars_per_line
2026 if we are printing a long string. */
2027 chars_printed
= strlen (wrap_indent
)
2028 + (save_chars
- wrap_column
);
2029 wrap_pointer
= wrap_buffer
; /* Reset buffer */
2030 wrap_buffer
[0] = '\0';
2031 wrap_column
= 0; /* And disable fancy wrap */
2036 if (*lineptr
== '\n')
2039 wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */
2041 fputc_unfiltered ('\n', stream
);
2048 fputs_filtered (const char *linebuffer
, struct ui_file
*stream
)
2050 fputs_maybe_filtered (linebuffer
, stream
, 1);
2054 putchar_unfiltered (int c
)
2057 ui_file_write (gdb_stdout
, &buf
, 1);
2061 /* Write character C to gdb_stdout using GDB's paging mechanism and return C.
2062 May return nonlocally. */
2065 putchar_filtered (int c
)
2067 return fputc_filtered (c
, gdb_stdout
);
2071 fputc_unfiltered (int c
, struct ui_file
*stream
)
2074 ui_file_write (stream
, &buf
, 1);
2079 fputc_filtered (int c
, struct ui_file
*stream
)
2085 fputs_filtered (buf
, stream
);
2089 /* puts_debug is like fputs_unfiltered, except it prints special
2090 characters in printable fashion. */
2093 puts_debug (char *prefix
, char *string
, char *suffix
)
2097 /* Print prefix and suffix after each line. */
2098 static int new_line
= 1;
2099 static int return_p
= 0;
2100 static char *prev_prefix
= "";
2101 static char *prev_suffix
= "";
2103 if (*string
== '\n')
2106 /* If the prefix is changing, print the previous suffix, a new line,
2107 and the new prefix. */
2108 if ((return_p
|| (strcmp (prev_prefix
, prefix
) != 0)) && !new_line
)
2110 fputs_unfiltered (prev_suffix
, gdb_stdlog
);
2111 fputs_unfiltered ("\n", gdb_stdlog
);
2112 fputs_unfiltered (prefix
, gdb_stdlog
);
2115 /* Print prefix if we printed a newline during the previous call. */
2119 fputs_unfiltered (prefix
, gdb_stdlog
);
2122 prev_prefix
= prefix
;
2123 prev_suffix
= suffix
;
2125 /* Output characters in a printable format. */
2126 while ((ch
= *string
++) != '\0')
2132 fputc_unfiltered (ch
, gdb_stdlog
);
2135 fprintf_unfiltered (gdb_stdlog
, "\\x%02x", ch
& 0xff);
2139 fputs_unfiltered ("\\\\", gdb_stdlog
);
2142 fputs_unfiltered ("\\b", gdb_stdlog
);
2145 fputs_unfiltered ("\\f", gdb_stdlog
);
2149 fputs_unfiltered ("\\n", gdb_stdlog
);
2152 fputs_unfiltered ("\\r", gdb_stdlog
);
2155 fputs_unfiltered ("\\t", gdb_stdlog
);
2158 fputs_unfiltered ("\\v", gdb_stdlog
);
2162 return_p
= ch
== '\r';
2165 /* Print suffix if we printed a newline. */
2168 fputs_unfiltered (suffix
, gdb_stdlog
);
2169 fputs_unfiltered ("\n", gdb_stdlog
);
2174 /* Print a variable number of ARGS using format FORMAT. If this
2175 information is going to put the amount written (since the last call
2176 to REINITIALIZE_MORE_FILTER or the last page break) over the page size,
2177 call prompt_for_continue to get the users permision to continue.
2179 Unlike fprintf, this function does not return a value.
2181 We implement three variants, vfprintf (takes a vararg list and stream),
2182 fprintf (takes a stream to write on), and printf (the usual).
2184 Note also that a longjmp to top level may occur in this routine
2185 (since prompt_for_continue may do so) so this routine should not be
2186 called when cleanups are not in place. */
2189 vfprintf_maybe_filtered (struct ui_file
*stream
, const char *format
,
2190 va_list args
, int filter
)
2193 struct cleanup
*old_cleanups
;
2195 linebuffer
= xstrvprintf (format
, args
);
2196 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2197 fputs_maybe_filtered (linebuffer
, stream
, filter
);
2198 do_cleanups (old_cleanups
);
2203 vfprintf_filtered (struct ui_file
*stream
, const char *format
, va_list args
)
2205 vfprintf_maybe_filtered (stream
, format
, args
, 1);
2209 vfprintf_unfiltered (struct ui_file
*stream
, const char *format
, va_list args
)
2212 struct cleanup
*old_cleanups
;
2214 linebuffer
= xstrvprintf (format
, args
);
2215 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2216 fputs_unfiltered (linebuffer
, stream
);
2217 do_cleanups (old_cleanups
);
2221 vprintf_filtered (const char *format
, va_list args
)
2223 vfprintf_maybe_filtered (gdb_stdout
, format
, args
, 1);
2227 vprintf_unfiltered (const char *format
, va_list args
)
2229 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2233 fprintf_filtered (struct ui_file
*stream
, const char *format
, ...)
2236 va_start (args
, format
);
2237 vfprintf_filtered (stream
, format
, args
);
2242 fprintf_unfiltered (struct ui_file
*stream
, const char *format
, ...)
2245 va_start (args
, format
);
2246 vfprintf_unfiltered (stream
, format
, args
);
2250 /* Like fprintf_filtered, but prints its result indented.
2251 Called as fprintfi_filtered (spaces, stream, format, ...); */
2254 fprintfi_filtered (int spaces
, struct ui_file
*stream
, const char *format
,
2258 va_start (args
, format
);
2259 print_spaces_filtered (spaces
, stream
);
2261 vfprintf_filtered (stream
, format
, args
);
2267 printf_filtered (const char *format
, ...)
2270 va_start (args
, format
);
2271 vfprintf_filtered (gdb_stdout
, format
, args
);
2277 printf_unfiltered (const char *format
, ...)
2280 va_start (args
, format
);
2281 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2285 /* Like printf_filtered, but prints it's result indented.
2286 Called as printfi_filtered (spaces, format, ...); */
2289 printfi_filtered (int spaces
, const char *format
, ...)
2292 va_start (args
, format
);
2293 print_spaces_filtered (spaces
, gdb_stdout
);
2294 vfprintf_filtered (gdb_stdout
, format
, args
);
2298 /* Easy -- but watch out!
2300 This routine is *not* a replacement for puts()! puts() appends a newline.
2301 This one doesn't, and had better not! */
2304 puts_filtered (const char *string
)
2306 fputs_filtered (string
, gdb_stdout
);
2310 puts_unfiltered (const char *string
)
2312 fputs_unfiltered (string
, gdb_stdout
);
2315 /* Return a pointer to N spaces and a null. The pointer is good
2316 until the next call to here. */
2321 static char *spaces
= 0;
2322 static int max_spaces
= -1;
2328 spaces
= (char *) xmalloc (n
+ 1);
2329 for (t
= spaces
+ n
; t
!= spaces
;)
2335 return spaces
+ max_spaces
- n
;
2338 /* Print N spaces. */
2340 print_spaces_filtered (int n
, struct ui_file
*stream
)
2342 fputs_filtered (n_spaces (n
), stream
);
2345 /* C++/ObjC demangler stuff. */
2347 /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language
2348 LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
2349 If the name is not mangled, or the language for the name is unknown, or
2350 demangling is off, the name is printed in its "raw" form. */
2353 fprintf_symbol_filtered (struct ui_file
*stream
, char *name
,
2354 enum language lang
, int arg_mode
)
2360 /* If user wants to see raw output, no problem. */
2363 fputs_filtered (name
, stream
);
2367 demangled
= language_demangle (language_def (lang
), name
, arg_mode
);
2368 fputs_filtered (demangled
? demangled
: name
, stream
);
2369 if (demangled
!= NULL
)
2377 /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any
2378 differences in whitespace. Returns 0 if they match, non-zero if they
2379 don't (slightly different than strcmp()'s range of return values).
2381 As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO".
2382 This "feature" is useful when searching for matching C++ function names
2383 (such as if the user types 'break FOO', where FOO is a mangled C++
2387 strcmp_iw (const char *string1
, const char *string2
)
2389 while ((*string1
!= '\0') && (*string2
!= '\0'))
2391 while (isspace (*string1
))
2395 while (isspace (*string2
))
2399 if (*string1
!= *string2
)
2403 if (*string1
!= '\0')
2409 return (*string1
!= '\0' && *string1
!= '(') || (*string2
!= '\0');
2412 /* This is like strcmp except that it ignores whitespace and treats
2413 '(' as the first non-NULL character in terms of ordering. Like
2414 strcmp (and unlike strcmp_iw), it returns negative if STRING1 <
2415 STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2
2416 according to that ordering.
2418 If a list is sorted according to this function and if you want to
2419 find names in the list that match some fixed NAME according to
2420 strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
2421 where this function would put NAME.
2423 Here are some examples of why using strcmp to sort is a bad idea:
2427 Say your partial symtab contains: "foo<char *>", "goo". Then, if
2428 we try to do a search for "foo<char*>", strcmp will locate this
2429 after "foo<char *>" and before "goo". Then lookup_partial_symbol
2430 will start looking at strings beginning with "goo", and will never
2431 see the correct match of "foo<char *>".
2433 Parenthesis example:
2435 In practice, this is less like to be an issue, but I'll give it a
2436 shot. Let's assume that '$' is a legitimate character to occur in
2437 symbols. (Which may well even be the case on some systems.) Then
2438 say that the partial symbol table contains "foo$" and "foo(int)".
2439 strcmp will put them in this order, since '$' < '('. Now, if the
2440 user searches for "foo", then strcmp will sort "foo" before "foo$".
2441 Then lookup_partial_symbol will notice that strcmp_iw("foo$",
2442 "foo") is false, so it won't proceed to the actual match of
2443 "foo(int)" with "foo". */
2446 strcmp_iw_ordered (const char *string1
, const char *string2
)
2448 while ((*string1
!= '\0') && (*string2
!= '\0'))
2450 while (isspace (*string1
))
2454 while (isspace (*string2
))
2458 if (*string1
!= *string2
)
2462 if (*string1
!= '\0')
2471 /* Characters are non-equal unless they're both '\0'; we want to
2472 make sure we get the comparison right according to our
2473 comparison in the cases where one of them is '\0' or '('. */
2475 if (*string2
== '\0')
2480 if (*string2
== '\0')
2485 if (*string2
== '(')
2488 return *string1
- *string2
;
2492 /* A simple comparison function with opposite semantics to strcmp. */
2495 streq (const char *lhs
, const char *rhs
)
2497 return !strcmp (lhs
, rhs
);
2503 ** Answer whether string_to_compare is a full or partial match to
2504 ** template_string. The partial match must be in sequence starting
2508 subset_compare (char *string_to_compare
, char *template_string
)
2511 if (template_string
!= (char *) NULL
&& string_to_compare
!= (char *) NULL
2512 && strlen (string_to_compare
) <= strlen (template_string
))
2515 (template_string
, string_to_compare
, strlen (string_to_compare
)) == 0);
2522 static void pagination_on_command (char *arg
, int from_tty
);
2524 pagination_on_command (char *arg
, int from_tty
)
2526 pagination_enabled
= 1;
2529 static void pagination_on_command (char *arg
, int from_tty
);
2531 pagination_off_command (char *arg
, int from_tty
)
2533 pagination_enabled
= 0;
2538 initialize_utils (void)
2540 struct cmd_list_element
*c
;
2542 c
= add_set_cmd ("width", class_support
, var_uinteger
, &chars_per_line
,
2543 "Set number of characters gdb thinks are in a line.",
2545 deprecated_add_show_from_set (c
, &showlist
);
2546 set_cmd_sfunc (c
, set_width_command
);
2548 c
= add_set_cmd ("height", class_support
, var_uinteger
, &lines_per_page
,
2549 "Set number of lines gdb thinks are in a page.", &setlist
);
2550 deprecated_add_show_from_set (c
, &showlist
);
2551 set_cmd_sfunc (c
, set_height_command
);
2555 deprecated_add_show_from_set
2556 (add_set_cmd ("demangle", class_support
, var_boolean
,
2558 "Set demangling of encoded C++/ObjC names when displaying symbols.",
2559 &setprintlist
), &showprintlist
);
2561 deprecated_add_show_from_set
2562 (add_set_cmd ("pagination", class_support
,
2563 var_boolean
, (char *) &pagination_enabled
,
2564 "Set state of pagination.", &setlist
), &showlist
);
2568 add_com ("am", class_support
, pagination_on_command
,
2569 "Enable pagination");
2570 add_com ("sm", class_support
, pagination_off_command
,
2571 "Disable pagination");
2574 deprecated_add_show_from_set
2575 (add_set_cmd ("sevenbit-strings", class_support
, var_boolean
,
2576 (char *) &sevenbit_strings
,
2577 "Set printing of 8-bit characters in strings as \\nnn.",
2578 &setprintlist
), &showprintlist
);
2580 deprecated_add_show_from_set
2581 (add_set_cmd ("asm-demangle", class_support
, var_boolean
,
2582 (char *) &asm_demangle
,
2583 "Set demangling of C++/ObjC names in disassembly listings.",
2584 &setprintlist
), &showprintlist
);
2587 /* Machine specific function to handle SIGWINCH signal. */
2589 #ifdef SIGWINCH_HANDLER_BODY
2590 SIGWINCH_HANDLER_BODY
2592 /* print routines to handle variable size regs, etc. */
2593 /* temporary storage using circular buffer */
2599 static char buf
[NUMCELLS
][CELLSIZE
];
2600 static int cell
= 0;
2601 if (++cell
>= NUMCELLS
)
2609 return (TARGET_ADDR_BIT
/ 8 * 2);
2613 paddr (CORE_ADDR addr
)
2615 return phex (addr
, TARGET_ADDR_BIT
/ 8);
2619 paddr_nz (CORE_ADDR addr
)
2621 return phex_nz (addr
, TARGET_ADDR_BIT
/ 8);
2625 decimal2str (char *paddr_str
, char *sign
, ULONGEST addr
)
2627 /* steal code from valprint.c:print_decimal(). Should this worry
2628 about the real size of addr as the above does? */
2629 unsigned long temp
[3];
2633 temp
[i
] = addr
% (1000 * 1000 * 1000);
2634 addr
/= (1000 * 1000 * 1000);
2637 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2641 sprintf (paddr_str
, "%s%lu", sign
, temp
[0]);
2644 sprintf (paddr_str
, "%s%lu%09lu", sign
, temp
[1], temp
[0]);
2647 sprintf (paddr_str
, "%s%lu%09lu%09lu", sign
, temp
[2], temp
[1], temp
[0]);
2650 internal_error (__FILE__
, __LINE__
,
2651 "failed internal consistency check");
2656 paddr_u (CORE_ADDR addr
)
2658 char *paddr_str
= get_cell ();
2659 decimal2str (paddr_str
, "", addr
);
2664 paddr_d (LONGEST addr
)
2666 char *paddr_str
= get_cell ();
2668 decimal2str (paddr_str
, "-", -addr
);
2670 decimal2str (paddr_str
, "", addr
);
2674 /* eliminate warning from compiler on 32-bit systems */
2675 static int thirty_two
= 32;
2678 phex (ULONGEST l
, int sizeof_l
)
2685 sprintf (str
, "%08lx%08lx",
2686 (unsigned long) (l
>> thirty_two
),
2687 (unsigned long) (l
& 0xffffffff));
2691 sprintf (str
, "%08lx", (unsigned long) l
);
2695 sprintf (str
, "%04x", (unsigned short) (l
& 0xffff));
2698 str
= phex (l
, sizeof (l
));
2705 phex_nz (ULONGEST l
, int sizeof_l
)
2712 unsigned long high
= (unsigned long) (l
>> thirty_two
);
2715 sprintf (str
, "%lx", (unsigned long) (l
& 0xffffffff));
2717 sprintf (str
, "%lx%08lx", high
, (unsigned long) (l
& 0xffffffff));
2722 sprintf (str
, "%lx", (unsigned long) l
);
2726 sprintf (str
, "%x", (unsigned short) (l
& 0xffff));
2729 str
= phex_nz (l
, sizeof (l
));
2736 /* Convert a CORE_ADDR into a string. */
2738 core_addr_to_string (const CORE_ADDR addr
)
2740 char *str
= get_cell ();
2742 strcat (str
, phex (addr
, sizeof (addr
)));
2747 core_addr_to_string_nz (const CORE_ADDR addr
)
2749 char *str
= get_cell ();
2751 strcat (str
, phex_nz (addr
, sizeof (addr
)));
2755 /* Convert a string back into a CORE_ADDR. */
2757 string_to_core_addr (const char *my_string
)
2760 if (my_string
[0] == '0' && tolower (my_string
[1]) == 'x')
2762 /* Assume that it is in decimal. */
2764 for (i
= 2; my_string
[i
] != '\0'; i
++)
2766 if (isdigit (my_string
[i
]))
2767 addr
= (my_string
[i
] - '0') + (addr
* 16);
2768 else if (isxdigit (my_string
[i
]))
2769 addr
= (tolower (my_string
[i
]) - 'a' + 0xa) + (addr
* 16);
2771 internal_error (__FILE__
, __LINE__
, "invalid hex");
2776 /* Assume that it is in decimal. */
2778 for (i
= 0; my_string
[i
] != '\0'; i
++)
2780 if (isdigit (my_string
[i
]))
2781 addr
= (my_string
[i
] - '0') + (addr
* 10);
2783 internal_error (__FILE__
, __LINE__
, "invalid decimal");
2790 gdb_realpath (const char *filename
)
2792 /* Method 1: The system has a compile time upper bound on a filename
2793 path. Use that and realpath() to canonicalize the name. This is
2794 the most common case. Note that, if there isn't a compile time
2795 upper bound, you want to avoid realpath() at all costs. */
2796 #if defined(HAVE_REALPATH)
2798 # if defined (PATH_MAX)
2800 # define USE_REALPATH
2801 # elif defined (MAXPATHLEN)
2802 char buf
[MAXPATHLEN
];
2803 # define USE_REALPATH
2805 # if defined (USE_REALPATH)
2806 const char *rp
= realpath (filename
, buf
);
2809 return xstrdup (rp
);
2812 #endif /* HAVE_REALPATH */
2814 /* Method 2: The host system (i.e., GNU) has the function
2815 canonicalize_file_name() which malloc's a chunk of memory and
2816 returns that, use that. */
2817 #if defined(HAVE_CANONICALIZE_FILE_NAME)
2819 char *rp
= canonicalize_file_name (filename
);
2821 return xstrdup (filename
);
2827 /* FIXME: cagney/2002-11-13:
2829 Method 2a: Use realpath() with a NULL buffer. Some systems, due
2830 to the problems described in in method 3, have modified their
2831 realpath() implementation so that it will allocate a buffer when
2832 NULL is passed in. Before this can be used, though, some sort of
2833 configure time test would need to be added. Otherwize the code
2834 will likely core dump. */
2836 /* Method 3: Now we're getting desperate! The system doesn't have a
2837 compile time buffer size and no alternative function. Query the
2838 OS, using pathconf(), for the buffer limit. Care is needed
2839 though, some systems do not limit PATH_MAX (return -1 for
2840 pathconf()) making it impossible to pass a correctly sized buffer
2841 to realpath() (it could always overflow). On those systems, we
2843 #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
2845 /* Find out the max path size. */
2846 long path_max
= pathconf ("/", _PC_PATH_MAX
);
2849 /* PATH_MAX is bounded. */
2850 char *buf
= alloca (path_max
);
2851 char *rp
= realpath (filename
, buf
);
2852 return xstrdup (rp
? rp
: filename
);
2857 /* This system is a lost cause, just dup the buffer. */
2858 return xstrdup (filename
);
2861 /* Return a copy of FILENAME, with its directory prefix canonicalized
2865 xfullpath (const char *filename
)
2867 const char *base_name
= lbasename (filename
);
2872 /* Extract the basename of filename, and return immediately
2873 a copy of filename if it does not contain any directory prefix. */
2874 if (base_name
== filename
)
2875 return xstrdup (filename
);
2877 dir_name
= alloca ((size_t) (base_name
- filename
+ 2));
2878 /* Allocate enough space to store the dir_name + plus one extra
2879 character sometimes needed under Windows (see below), and
2880 then the closing \000 character */
2881 strncpy (dir_name
, filename
, base_name
- filename
);
2882 dir_name
[base_name
- filename
] = '\000';
2884 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2885 /* We need to be careful when filename is of the form 'd:foo', which
2886 is equivalent of d:./foo, which is totally different from d:/foo. */
2887 if (strlen (dir_name
) == 2 && isalpha (dir_name
[0]) && dir_name
[1] == ':')
2890 dir_name
[3] = '\000';
2894 /* Canonicalize the directory prefix, and build the resulting
2895 filename. If the dirname realpath already contains an ending
2896 directory separator, avoid doubling it. */
2897 real_path
= gdb_realpath (dir_name
);
2898 if (IS_DIR_SEPARATOR (real_path
[strlen (real_path
) - 1]))
2899 result
= concat (real_path
, base_name
, NULL
);
2901 result
= concat (real_path
, SLASH_STRING
, base_name
, NULL
);
2908 /* This is the 32-bit CRC function used by the GNU separate debug
2909 facility. An executable may contain a section named
2910 .gnu_debuglink, which holds the name of a separate executable file
2911 containing its debug info, and a checksum of that file's contents,
2912 computed using this function. */
2914 gnu_debuglink_crc32 (unsigned long crc
, unsigned char *buf
, size_t len
)
2916 static const unsigned long crc32_table
[256] = {
2917 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
2918 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
2919 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
2920 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
2921 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
2922 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
2923 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
2924 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
2925 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
2926 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
2927 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
2928 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
2929 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
2930 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
2931 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
2932 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
2933 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
2934 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
2935 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
2936 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
2937 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
2938 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
2939 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
2940 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
2941 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
2942 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
2943 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
2944 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
2945 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
2946 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
2947 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
2948 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
2949 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
2950 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
2951 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
2952 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
2953 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
2954 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
2955 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
2956 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
2957 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
2958 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
2959 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
2960 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
2961 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
2962 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
2963 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
2964 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
2965 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
2966 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
2967 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
2972 crc
= ~crc
& 0xffffffff;
2973 for (end
= buf
+ len
; buf
< end
; ++buf
)
2974 crc
= crc32_table
[(crc
^ *buf
) & 0xff] ^ (crc
>> 8);
2975 return ~crc
& 0xffffffff;;
2979 align_up (ULONGEST v
, int n
)
2981 /* Check that N is really a power of two. */
2982 gdb_assert (n
&& (n
& (n
-1)) == 0);
2983 return (v
+ n
- 1) & -n
;
2987 align_down (ULONGEST v
, int n
)
2989 /* Check that N is really a power of two. */
2990 gdb_assert (n
&& (n
& (n
-1)) == 0);