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, needed
978 for System V-style signals. So just always do it, rather than worrying
979 about USG defines and stuff like that. */
980 signal (signo
, request_quit
);
986 /* Called when a memory allocation fails, with the number of bytes of
987 memory requested in SIZE. */
994 internal_error (__FILE__
, __LINE__
,
995 "virtual memory exhausted: can't allocate %ld bytes.",
1000 internal_error (__FILE__
, __LINE__
, "virtual memory exhausted.");
1004 /* The xmalloc() (libiberty.h) family of memory management routines.
1006 These are like the ISO-C malloc() family except that they implement
1007 consistent semantics and guard against typical memory management
1010 /* NOTE: These are declared using PTR to ensure consistency with
1011 "libiberty.h". xfree() is GDB local. */
1014 xmalloc (size_t size
)
1018 /* See libiberty/xmalloc.c. This function need's to match that's
1019 semantics. It never returns NULL. */
1023 val
= malloc (size
); /* OK: malloc */
1031 xrealloc (PTR ptr
, size_t size
) /* OK: PTR */
1035 /* See libiberty/xmalloc.c. This function need's to match that's
1036 semantics. It never returns NULL. */
1041 val
= realloc (ptr
, size
); /* OK: realloc */
1043 val
= malloc (size
); /* OK: malloc */
1051 xcalloc (size_t number
, size_t size
)
1055 /* See libiberty/xmalloc.c. This function need's to match that's
1056 semantics. It never returns NULL. */
1057 if (number
== 0 || size
== 0)
1063 mem
= calloc (number
, size
); /* OK: xcalloc */
1065 nomem (number
* size
);
1074 free (ptr
); /* OK: free */
1078 /* Like asprintf/vasprintf but get an internal_error if the call
1082 xstrprintf (const char *format
, ...)
1086 va_start (args
, format
);
1087 ret
= xstrvprintf (format
, args
);
1093 xasprintf (char **ret
, const char *format
, ...)
1096 va_start (args
, format
);
1097 (*ret
) = xstrvprintf (format
, args
);
1102 xvasprintf (char **ret
, const char *format
, va_list ap
)
1104 (*ret
) = xstrvprintf (format
, ap
);
1108 xstrvprintf (const char *format
, va_list ap
)
1111 int status
= vasprintf (&ret
, format
, ap
);
1112 /* NULL is returned when there was a memory allocation problem. */
1115 /* A negative status (the printed length) with a non-NULL buffer
1116 should never happen, but just to be sure. */
1118 internal_error (__FILE__
, __LINE__
,
1119 "vasprintf call failed (errno %d)", errno
);
1123 /* My replacement for the read system call.
1124 Used like `read' but keeps going if `read' returns too soon. */
1127 myread (int desc
, char *addr
, int len
)
1134 val
= read (desc
, addr
, len
);
1138 return orglen
- len
;
1145 /* Make a copy of the string at PTR with SIZE characters
1146 (and add a null character at the end in the copy).
1147 Uses malloc to get the space. Returns the address of the copy. */
1150 savestring (const char *ptr
, size_t size
)
1152 char *p
= (char *) xmalloc (size
+ 1);
1153 memcpy (p
, ptr
, size
);
1159 msavestring (void *md
, const char *ptr
, size_t size
)
1161 char *p
= (char *) xmalloc (size
+ 1);
1162 memcpy (p
, ptr
, size
);
1168 mstrsave (void *md
, const char *ptr
)
1170 return (msavestring (md
, ptr
, strlen (ptr
)));
1174 print_spaces (int n
, struct ui_file
*file
)
1176 fputs_unfiltered (n_spaces (n
), file
);
1179 /* Print a host address. */
1182 gdb_print_host_address (const void *addr
, struct ui_file
*stream
)
1185 /* We could use the %p conversion specifier to fprintf if we had any
1186 way of knowing whether this host supports it. But the following
1187 should work on the Alpha and on 32 bit machines. */
1189 fprintf_filtered (stream
, "0x%lx", (unsigned long) addr
);
1192 /* Ask user a y-or-n question and return 1 iff answer is yes.
1193 Takes three args which are given to printf to print the question.
1194 The first, a control string, should end in "? ".
1195 It should not say how to answer, because we do that. */
1199 query (const char *ctlstr
, ...)
1206 if (deprecated_query_hook
)
1208 va_start (args
, ctlstr
);
1209 return deprecated_query_hook (ctlstr
, args
);
1212 /* Automatically answer "yes" if input is not from a terminal. */
1213 if (!input_from_terminal_p ())
1218 wrap_here (""); /* Flush any buffered output */
1219 gdb_flush (gdb_stdout
);
1221 if (annotation_level
> 1)
1222 printf_filtered ("\n\032\032pre-query\n");
1224 va_start (args
, ctlstr
);
1225 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1227 printf_filtered ("(y or n) ");
1229 if (annotation_level
> 1)
1230 printf_filtered ("\n\032\032query\n");
1233 gdb_flush (gdb_stdout
);
1235 answer
= fgetc (stdin
);
1236 clearerr (stdin
); /* in case of C-d */
1237 if (answer
== EOF
) /* C-d */
1242 /* Eat rest of input line, to EOF or newline */
1246 ans2
= fgetc (stdin
);
1249 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1263 printf_filtered ("Please answer y or n.\n");
1266 if (annotation_level
> 1)
1267 printf_filtered ("\n\032\032post-query\n");
1272 /* This function supports the nquery() and yquery() functions.
1273 Ask user a y-or-n question and return 0 if answer is no, 1 if
1274 answer is yes, or default the answer to the specified default.
1275 DEFCHAR is either 'y' or 'n' and refers to the default answer.
1276 CTLSTR is the control string and should end in "? ". It should
1277 not say how to answer, because we do that.
1278 ARGS are the arguments passed along with the CTLSTR argument to
1282 defaulted_query (const char *ctlstr
, const char defchar
, va_list args
)
1288 char def_answer
, not_def_answer
;
1289 char *y_string
, *n_string
;
1291 /* Set up according to which answer is the default. */
1296 not_def_answer
= 'N';
1304 not_def_answer
= 'Y';
1309 if (deprecated_query_hook
)
1311 return deprecated_query_hook (ctlstr
, args
);
1314 /* Automatically answer default value if input is not from a terminal. */
1315 if (!input_from_terminal_p ())
1320 wrap_here (""); /* Flush any buffered output */
1321 gdb_flush (gdb_stdout
);
1323 if (annotation_level
> 1)
1324 printf_filtered ("\n\032\032pre-query\n");
1326 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1327 printf_filtered ("(%s or %s) ", y_string
, n_string
);
1329 if (annotation_level
> 1)
1330 printf_filtered ("\n\032\032query\n");
1333 gdb_flush (gdb_stdout
);
1335 answer
= fgetc (stdin
);
1336 clearerr (stdin
); /* in case of C-d */
1337 if (answer
== EOF
) /* C-d */
1342 /* Eat rest of input line, to EOF or newline */
1346 ans2
= fgetc (stdin
);
1349 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1353 /* Check answer. For the non-default, the user must specify
1354 the non-default explicitly. */
1355 if (answer
== not_def_answer
)
1357 retval
= !def_value
;
1360 /* Otherwise, for the default, the user may either specify
1361 the required input or have it default by entering nothing. */
1362 if (answer
== def_answer
|| answer
== '\n' ||
1363 answer
== '\r' || answer
== EOF
)
1368 /* Invalid entries are not defaulted and require another selection. */
1369 printf_filtered ("Please answer %s or %s.\n",
1370 y_string
, n_string
);
1373 if (annotation_level
> 1)
1374 printf_filtered ("\n\032\032post-query\n");
1379 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1380 answer is yes, or 0 if answer is defaulted.
1381 Takes three args which are given to printf to print the question.
1382 The first, a control string, should end in "? ".
1383 It should not say how to answer, because we do that. */
1386 nquery (const char *ctlstr
, ...)
1390 va_start (args
, ctlstr
);
1391 return defaulted_query (ctlstr
, 'n', args
);
1395 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1396 answer is yes, or 1 if answer is defaulted.
1397 Takes three args which are given to printf to print the question.
1398 The first, a control string, should end in "? ".
1399 It should not say how to answer, because we do that. */
1402 yquery (const char *ctlstr
, ...)
1406 va_start (args
, ctlstr
);
1407 return defaulted_query (ctlstr
, 'y', args
);
1411 /* Print an error message saying that we couldn't make sense of a
1412 \^mumble sequence in a string or character constant. START and END
1413 indicate a substring of some larger string that contains the
1414 erroneous backslash sequence, missing the initial backslash. */
1416 no_control_char_error (const char *start
, const char *end
)
1418 int len
= end
- start
;
1419 char *copy
= alloca (end
- start
+ 1);
1421 memcpy (copy
, start
, len
);
1424 error ("There is no control character `\\%s' in the `%s' character set.",
1425 copy
, target_charset ());
1428 /* Parse a C escape sequence. STRING_PTR points to a variable
1429 containing a pointer to the string to parse. That pointer
1430 should point to the character after the \. That pointer
1431 is updated past the characters we use. The value of the
1432 escape sequence is returned.
1434 A negative value means the sequence \ newline was seen,
1435 which is supposed to be equivalent to nothing at all.
1437 If \ is followed by a null character, we return a negative
1438 value and leave the string pointer pointing at the null character.
1440 If \ is followed by 000, we return 0 and leave the string pointer
1441 after the zeros. A value of 0 does not mean end of string. */
1444 parse_escape (char **string_ptr
)
1447 int c
= *(*string_ptr
)++;
1448 if (c_parse_backslash (c
, &target_char
))
1460 /* Remember where this escape sequence started, for reporting
1462 char *sequence_start_pos
= *string_ptr
- 1;
1464 c
= *(*string_ptr
)++;
1468 /* XXXCHARSET: What is `delete' in the host character set? */
1471 if (!host_char_to_target (c
, &target_char
))
1472 error ("There is no character corresponding to `Delete' "
1473 "in the target character set `%s'.", host_charset ());
1478 target_char
= parse_escape (string_ptr
);
1481 if (!host_char_to_target (c
, &target_char
))
1482 no_control_char_error (sequence_start_pos
, *string_ptr
);
1485 /* Now target_char is something like `c', and we want to find
1486 its control-character equivalent. */
1487 if (!target_char_to_control_char (target_char
, &target_char
))
1488 no_control_char_error (sequence_start_pos
, *string_ptr
);
1493 /* XXXCHARSET: we need to use isdigit and value-of-digit
1494 methods of the host character set here. */
1510 if (c
>= '0' && c
<= '7')
1524 if (!host_char_to_target (c
, &target_char
))
1526 ("The escape sequence `\%c' is equivalent to plain `%c', which"
1527 " has no equivalent\n" "in the `%s' character set.", c
, c
,
1533 /* Print the character C on STREAM as part of the contents of a literal
1534 string whose delimiter is QUOTER. Note that this routine should only
1535 be call for printing things which are independent of the language
1536 of the program being debugged. */
1539 printchar (int c
, void (*do_fputs
) (const char *, struct ui_file
*),
1540 void (*do_fprintf
) (struct ui_file
*, const char *, ...),
1541 struct ui_file
*stream
, int quoter
)
1544 c
&= 0xFF; /* Avoid sign bit follies */
1546 if (c
< 0x20 || /* Low control chars */
1547 (c
>= 0x7F && c
< 0xA0) || /* DEL, High controls */
1548 (sevenbit_strings
&& c
>= 0x80))
1549 { /* high order bit set */
1553 do_fputs ("\\n", stream
);
1556 do_fputs ("\\b", stream
);
1559 do_fputs ("\\t", stream
);
1562 do_fputs ("\\f", stream
);
1565 do_fputs ("\\r", stream
);
1568 do_fputs ("\\e", stream
);
1571 do_fputs ("\\a", stream
);
1574 do_fprintf (stream
, "\\%.3o", (unsigned int) c
);
1580 if (c
== '\\' || c
== quoter
)
1581 do_fputs ("\\", stream
);
1582 do_fprintf (stream
, "%c", c
);
1586 /* Print the character C on STREAM as part of the contents of a
1587 literal string whose delimiter is QUOTER. Note that these routines
1588 should only be call for printing things which are independent of
1589 the language of the program being debugged. */
1592 fputstr_filtered (const char *str
, int quoter
, struct ui_file
*stream
)
1595 printchar (*str
++, fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1599 fputstr_unfiltered (const char *str
, int quoter
, struct ui_file
*stream
)
1602 printchar (*str
++, fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1606 fputstrn_unfiltered (const char *str
, int n
, int quoter
,
1607 struct ui_file
*stream
)
1610 for (i
= 0; i
< n
; i
++)
1611 printchar (str
[i
], fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1615 /* Number of lines per page or UINT_MAX if paging is disabled. */
1616 static unsigned int lines_per_page
;
1618 /* Number of chars per line or UINT_MAX if line folding is disabled. */
1619 static unsigned int chars_per_line
;
1621 /* Current count of lines printed on this page, chars on this line. */
1622 static unsigned int lines_printed
, chars_printed
;
1624 /* Buffer and start column of buffered text, for doing smarter word-
1625 wrapping. When someone calls wrap_here(), we start buffering output
1626 that comes through fputs_filtered(). If we see a newline, we just
1627 spit it out and forget about the wrap_here(). If we see another
1628 wrap_here(), we spit it out and remember the newer one. If we see
1629 the end of the line, we spit out a newline, the indent, and then
1630 the buffered output. */
1632 /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which
1633 are waiting to be output (they have already been counted in chars_printed).
1634 When wrap_buffer[0] is null, the buffer is empty. */
1635 static char *wrap_buffer
;
1637 /* Pointer in wrap_buffer to the next character to fill. */
1638 static char *wrap_pointer
;
1640 /* String to indent by if the wrap occurs. Must not be NULL if wrap_column
1642 static char *wrap_indent
;
1644 /* Column number on the screen where wrap_buffer begins, or 0 if wrapping
1645 is not in effect. */
1646 static int wrap_column
;
1649 /* Inialize the number of lines per page and chars per line. */
1652 init_page_info (void)
1655 if (!tui_get_command_dimension (&chars_per_line
, &lines_per_page
))
1660 #if defined(__GO32__)
1661 rows
= ScreenRows ();
1662 cols
= ScreenCols ();
1663 lines_per_page
= rows
;
1664 chars_per_line
= cols
;
1666 /* Make sure Readline has initialized its terminal settings. */
1667 rl_reset_terminal (NULL
);
1669 /* Get the screen size from Readline. */
1670 rl_get_screen_size (&rows
, &cols
);
1671 lines_per_page
= rows
;
1672 chars_per_line
= cols
;
1674 /* Readline should have fetched the termcap entry for us. */
1675 if (tgetnum ("li") < 0 || getenv ("EMACS"))
1677 /* The number of lines per page is not mentioned in the
1678 terminal description. This probably means that paging is
1679 not useful (e.g. emacs shell window), so disable paging. */
1680 lines_per_page
= UINT_MAX
;
1683 /* FIXME: Get rid of this junk. */
1684 #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
1685 SIGWINCH_HANDLER (SIGWINCH
);
1688 /* If the output is not a terminal, don't paginate it. */
1689 if (!ui_file_isatty (gdb_stdout
))
1690 lines_per_page
= UINT_MAX
;
1698 /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */
1701 set_screen_size (void)
1703 int rows
= lines_per_page
;
1704 int cols
= chars_per_line
;
1710 rl_get_screen_size (NULL
, &cols
);
1712 /* Update Readline's idea of the terminal size. */
1713 rl_set_screen_size (rows
, cols
);
1716 /* Reinitialize WRAP_BUFFER according to the current value of
1722 if (chars_per_line
== 0)
1727 wrap_buffer
= (char *) xmalloc (chars_per_line
+ 2);
1728 wrap_buffer
[0] = '\0';
1731 wrap_buffer
= (char *) xrealloc (wrap_buffer
, chars_per_line
+ 2);
1732 wrap_pointer
= wrap_buffer
; /* Start it at the beginning. */
1736 set_width_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1743 set_height_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1748 /* Wait, so the user can read what's on the screen. Prompt the user
1749 to continue by pressing RETURN. */
1752 prompt_for_continue (void)
1755 char cont_prompt
[120];
1757 if (annotation_level
> 1)
1758 printf_unfiltered ("\n\032\032pre-prompt-for-continue\n");
1760 strcpy (cont_prompt
,
1761 "---Type <return> to continue, or q <return> to quit---");
1762 if (annotation_level
> 1)
1763 strcat (cont_prompt
, "\n\032\032prompt-for-continue\n");
1765 /* We must do this *before* we call gdb_readline, else it will eventually
1766 call us -- thinking that we're trying to print beyond the end of the
1768 reinitialize_more_filter ();
1771 /* On a real operating system, the user can quit with SIGINT.
1774 'q' is provided on all systems so users don't have to change habits
1775 from system to system, and because telling them what to do in
1776 the prompt is more user-friendly than expecting them to think of
1778 /* Call readline, not gdb_readline, because GO32 readline handles control-C
1779 whereas control-C to gdb_readline will cause the user to get dumped
1781 ignore
= gdb_readline_wrapper (cont_prompt
);
1783 if (annotation_level
> 1)
1784 printf_unfiltered ("\n\032\032post-prompt-for-continue\n");
1789 while (*p
== ' ' || *p
== '\t')
1794 request_quit (SIGINT
);
1796 async_request_quit (0);
1802 /* Now we have to do this again, so that GDB will know that it doesn't
1803 need to save the ---Type <return>--- line at the top of the screen. */
1804 reinitialize_more_filter ();
1806 dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */
1809 /* Reinitialize filter; ie. tell it to reset to original values. */
1812 reinitialize_more_filter (void)
1818 /* Indicate that if the next sequence of characters overflows the line,
1819 a newline should be inserted here rather than when it hits the end.
1820 If INDENT is non-null, it is a string to be printed to indent the
1821 wrapped part on the next line. INDENT must remain accessible until
1822 the next call to wrap_here() or until a newline is printed through
1825 If the line is already overfull, we immediately print a newline and
1826 the indentation, and disable further wrapping.
1828 If we don't know the width of lines, but we know the page height,
1829 we must not wrap words, but should still keep track of newlines
1830 that were explicitly printed.
1832 INDENT should not contain tabs, as that will mess up the char count
1833 on the next line. FIXME.
1835 This routine is guaranteed to force out any output which has been
1836 squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be
1837 used to force out output from the wrap_buffer. */
1840 wrap_here (char *indent
)
1842 /* This should have been allocated, but be paranoid anyway. */
1844 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
1848 *wrap_pointer
= '\0';
1849 fputs_unfiltered (wrap_buffer
, gdb_stdout
);
1851 wrap_pointer
= wrap_buffer
;
1852 wrap_buffer
[0] = '\0';
1853 if (chars_per_line
== UINT_MAX
) /* No line overflow checking */
1857 else if (chars_printed
>= chars_per_line
)
1859 puts_filtered ("\n");
1861 puts_filtered (indent
);
1866 wrap_column
= chars_printed
;
1870 wrap_indent
= indent
;
1874 /* Print input string to gdb_stdout, filtered, with wrap,
1875 arranging strings in columns of n chars. String can be
1876 right or left justified in the column. Never prints
1877 trailing spaces. String should never be longer than
1878 width. FIXME: this could be useful for the EXAMINE
1879 command, which currently doesn't tabulate very well */
1882 puts_filtered_tabular (char *string
, int width
, int right
)
1888 gdb_assert (chars_per_line
> 0);
1889 if (chars_per_line
== UINT_MAX
)
1891 fputs_filtered (string
, gdb_stdout
);
1892 fputs_filtered ("\n", gdb_stdout
);
1896 if (((chars_printed
- 1) / width
+ 2) * width
>= chars_per_line
)
1897 fputs_filtered ("\n", gdb_stdout
);
1899 if (width
>= chars_per_line
)
1900 width
= chars_per_line
- 1;
1902 stringlen
= strlen (string
);
1904 if (chars_printed
> 0)
1905 spaces
= width
- (chars_printed
- 1) % width
- 1;
1907 spaces
+= width
- stringlen
;
1909 spacebuf
= alloca (spaces
+ 1);
1910 spacebuf
[spaces
] = '\0';
1912 spacebuf
[spaces
] = ' ';
1914 fputs_filtered (spacebuf
, gdb_stdout
);
1915 fputs_filtered (string
, gdb_stdout
);
1919 /* Ensure that whatever gets printed next, using the filtered output
1920 commands, starts at the beginning of the line. I.E. if there is
1921 any pending output for the current line, flush it and start a new
1922 line. Otherwise do nothing. */
1927 if (chars_printed
> 0)
1929 puts_filtered ("\n");
1934 /* Like fputs but if FILTER is true, pause after every screenful.
1936 Regardless of FILTER can wrap at points other than the final
1937 character of a line.
1939 Unlike fputs, fputs_maybe_filtered does not return a value.
1940 It is OK for LINEBUFFER to be NULL, in which case just don't print
1943 Note that a longjmp to top level may occur in this routine (only if
1944 FILTER is true) (since prompt_for_continue may do so) so this
1945 routine should not be called when cleanups are not in place. */
1948 fputs_maybe_filtered (const char *linebuffer
, struct ui_file
*stream
,
1951 const char *lineptr
;
1953 if (linebuffer
== 0)
1956 /* Don't do any filtering if it is disabled. */
1957 if ((stream
!= gdb_stdout
) || !pagination_enabled
1958 || (lines_per_page
== UINT_MAX
&& chars_per_line
== UINT_MAX
))
1960 fputs_unfiltered (linebuffer
, stream
);
1964 /* Go through and output each character. Show line extension
1965 when this is necessary; prompt user for new page when this is
1968 lineptr
= linebuffer
;
1971 /* Possible new page. */
1972 if (filter
&& (lines_printed
>= lines_per_page
- 1))
1973 prompt_for_continue ();
1975 while (*lineptr
&& *lineptr
!= '\n')
1977 /* Print a single line. */
1978 if (*lineptr
== '\t')
1981 *wrap_pointer
++ = '\t';
1983 fputc_unfiltered ('\t', stream
);
1984 /* Shifting right by 3 produces the number of tab stops
1985 we have already passed, and then adding one and
1986 shifting left 3 advances to the next tab stop. */
1987 chars_printed
= ((chars_printed
>> 3) + 1) << 3;
1993 *wrap_pointer
++ = *lineptr
;
1995 fputc_unfiltered (*lineptr
, stream
);
2000 if (chars_printed
>= chars_per_line
)
2002 unsigned int save_chars
= chars_printed
;
2006 /* If we aren't actually wrapping, don't output newline --
2007 if chars_per_line is right, we probably just overflowed
2008 anyway; if it's wrong, let us keep going. */
2010 fputc_unfiltered ('\n', stream
);
2012 /* Possible new page. */
2013 if (lines_printed
>= lines_per_page
- 1)
2014 prompt_for_continue ();
2016 /* Now output indentation and wrapped string */
2019 fputs_unfiltered (wrap_indent
, stream
);
2020 *wrap_pointer
= '\0'; /* Null-terminate saved stuff */
2021 fputs_unfiltered (wrap_buffer
, stream
); /* and eject it */
2022 /* FIXME, this strlen is what prevents wrap_indent from
2023 containing tabs. However, if we recurse to print it
2024 and count its chars, we risk trouble if wrap_indent is
2025 longer than (the user settable) chars_per_line.
2026 Note also that this can set chars_printed > chars_per_line
2027 if we are printing a long string. */
2028 chars_printed
= strlen (wrap_indent
)
2029 + (save_chars
- wrap_column
);
2030 wrap_pointer
= wrap_buffer
; /* Reset buffer */
2031 wrap_buffer
[0] = '\0';
2032 wrap_column
= 0; /* And disable fancy wrap */
2037 if (*lineptr
== '\n')
2040 wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */
2042 fputc_unfiltered ('\n', stream
);
2049 fputs_filtered (const char *linebuffer
, struct ui_file
*stream
)
2051 fputs_maybe_filtered (linebuffer
, stream
, 1);
2055 putchar_unfiltered (int c
)
2058 ui_file_write (gdb_stdout
, &buf
, 1);
2062 /* Write character C to gdb_stdout using GDB's paging mechanism and return C.
2063 May return nonlocally. */
2066 putchar_filtered (int c
)
2068 return fputc_filtered (c
, gdb_stdout
);
2072 fputc_unfiltered (int c
, struct ui_file
*stream
)
2075 ui_file_write (stream
, &buf
, 1);
2080 fputc_filtered (int c
, struct ui_file
*stream
)
2086 fputs_filtered (buf
, stream
);
2090 /* puts_debug is like fputs_unfiltered, except it prints special
2091 characters in printable fashion. */
2094 puts_debug (char *prefix
, char *string
, char *suffix
)
2098 /* Print prefix and suffix after each line. */
2099 static int new_line
= 1;
2100 static int return_p
= 0;
2101 static char *prev_prefix
= "";
2102 static char *prev_suffix
= "";
2104 if (*string
== '\n')
2107 /* If the prefix is changing, print the previous suffix, a new line,
2108 and the new prefix. */
2109 if ((return_p
|| (strcmp (prev_prefix
, prefix
) != 0)) && !new_line
)
2111 fputs_unfiltered (prev_suffix
, gdb_stdlog
);
2112 fputs_unfiltered ("\n", gdb_stdlog
);
2113 fputs_unfiltered (prefix
, gdb_stdlog
);
2116 /* Print prefix if we printed a newline during the previous call. */
2120 fputs_unfiltered (prefix
, gdb_stdlog
);
2123 prev_prefix
= prefix
;
2124 prev_suffix
= suffix
;
2126 /* Output characters in a printable format. */
2127 while ((ch
= *string
++) != '\0')
2133 fputc_unfiltered (ch
, gdb_stdlog
);
2136 fprintf_unfiltered (gdb_stdlog
, "\\x%02x", ch
& 0xff);
2140 fputs_unfiltered ("\\\\", gdb_stdlog
);
2143 fputs_unfiltered ("\\b", gdb_stdlog
);
2146 fputs_unfiltered ("\\f", gdb_stdlog
);
2150 fputs_unfiltered ("\\n", gdb_stdlog
);
2153 fputs_unfiltered ("\\r", gdb_stdlog
);
2156 fputs_unfiltered ("\\t", gdb_stdlog
);
2159 fputs_unfiltered ("\\v", gdb_stdlog
);
2163 return_p
= ch
== '\r';
2166 /* Print suffix if we printed a newline. */
2169 fputs_unfiltered (suffix
, gdb_stdlog
);
2170 fputs_unfiltered ("\n", gdb_stdlog
);
2175 /* Print a variable number of ARGS using format FORMAT. If this
2176 information is going to put the amount written (since the last call
2177 to REINITIALIZE_MORE_FILTER or the last page break) over the page size,
2178 call prompt_for_continue to get the users permision to continue.
2180 Unlike fprintf, this function does not return a value.
2182 We implement three variants, vfprintf (takes a vararg list and stream),
2183 fprintf (takes a stream to write on), and printf (the usual).
2185 Note also that a longjmp to top level may occur in this routine
2186 (since prompt_for_continue may do so) so this routine should not be
2187 called when cleanups are not in place. */
2190 vfprintf_maybe_filtered (struct ui_file
*stream
, const char *format
,
2191 va_list args
, int filter
)
2194 struct cleanup
*old_cleanups
;
2196 linebuffer
= xstrvprintf (format
, args
);
2197 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2198 fputs_maybe_filtered (linebuffer
, stream
, filter
);
2199 do_cleanups (old_cleanups
);
2204 vfprintf_filtered (struct ui_file
*stream
, const char *format
, va_list args
)
2206 vfprintf_maybe_filtered (stream
, format
, args
, 1);
2210 vfprintf_unfiltered (struct ui_file
*stream
, const char *format
, va_list args
)
2213 struct cleanup
*old_cleanups
;
2215 linebuffer
= xstrvprintf (format
, args
);
2216 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2217 fputs_unfiltered (linebuffer
, stream
);
2218 do_cleanups (old_cleanups
);
2222 vprintf_filtered (const char *format
, va_list args
)
2224 vfprintf_maybe_filtered (gdb_stdout
, format
, args
, 1);
2228 vprintf_unfiltered (const char *format
, va_list args
)
2230 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2234 fprintf_filtered (struct ui_file
*stream
, const char *format
, ...)
2237 va_start (args
, format
);
2238 vfprintf_filtered (stream
, format
, args
);
2243 fprintf_unfiltered (struct ui_file
*stream
, const char *format
, ...)
2246 va_start (args
, format
);
2247 vfprintf_unfiltered (stream
, format
, args
);
2251 /* Like fprintf_filtered, but prints its result indented.
2252 Called as fprintfi_filtered (spaces, stream, format, ...); */
2255 fprintfi_filtered (int spaces
, struct ui_file
*stream
, const char *format
,
2259 va_start (args
, format
);
2260 print_spaces_filtered (spaces
, stream
);
2262 vfprintf_filtered (stream
, format
, args
);
2268 printf_filtered (const char *format
, ...)
2271 va_start (args
, format
);
2272 vfprintf_filtered (gdb_stdout
, format
, args
);
2278 printf_unfiltered (const char *format
, ...)
2281 va_start (args
, format
);
2282 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2286 /* Like printf_filtered, but prints it's result indented.
2287 Called as printfi_filtered (spaces, format, ...); */
2290 printfi_filtered (int spaces
, const char *format
, ...)
2293 va_start (args
, format
);
2294 print_spaces_filtered (spaces
, gdb_stdout
);
2295 vfprintf_filtered (gdb_stdout
, format
, args
);
2299 /* Easy -- but watch out!
2301 This routine is *not* a replacement for puts()! puts() appends a newline.
2302 This one doesn't, and had better not! */
2305 puts_filtered (const char *string
)
2307 fputs_filtered (string
, gdb_stdout
);
2311 puts_unfiltered (const char *string
)
2313 fputs_unfiltered (string
, gdb_stdout
);
2316 /* Return a pointer to N spaces and a null. The pointer is good
2317 until the next call to here. */
2322 static char *spaces
= 0;
2323 static int max_spaces
= -1;
2329 spaces
= (char *) xmalloc (n
+ 1);
2330 for (t
= spaces
+ n
; t
!= spaces
;)
2336 return spaces
+ max_spaces
- n
;
2339 /* Print N spaces. */
2341 print_spaces_filtered (int n
, struct ui_file
*stream
)
2343 fputs_filtered (n_spaces (n
), stream
);
2346 /* C++/ObjC demangler stuff. */
2348 /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language
2349 LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
2350 If the name is not mangled, or the language for the name is unknown, or
2351 demangling is off, the name is printed in its "raw" form. */
2354 fprintf_symbol_filtered (struct ui_file
*stream
, char *name
,
2355 enum language lang
, int arg_mode
)
2361 /* If user wants to see raw output, no problem. */
2364 fputs_filtered (name
, stream
);
2368 demangled
= language_demangle (language_def (lang
), name
, arg_mode
);
2369 fputs_filtered (demangled
? demangled
: name
, stream
);
2370 if (demangled
!= NULL
)
2378 /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any
2379 differences in whitespace. Returns 0 if they match, non-zero if they
2380 don't (slightly different than strcmp()'s range of return values).
2382 As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO".
2383 This "feature" is useful when searching for matching C++ function names
2384 (such as if the user types 'break FOO', where FOO is a mangled C++
2388 strcmp_iw (const char *string1
, const char *string2
)
2390 while ((*string1
!= '\0') && (*string2
!= '\0'))
2392 while (isspace (*string1
))
2396 while (isspace (*string2
))
2400 if (*string1
!= *string2
)
2404 if (*string1
!= '\0')
2410 return (*string1
!= '\0' && *string1
!= '(') || (*string2
!= '\0');
2413 /* This is like strcmp except that it ignores whitespace and treats
2414 '(' as the first non-NULL character in terms of ordering. Like
2415 strcmp (and unlike strcmp_iw), it returns negative if STRING1 <
2416 STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2
2417 according to that ordering.
2419 If a list is sorted according to this function and if you want to
2420 find names in the list that match some fixed NAME according to
2421 strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
2422 where this function would put NAME.
2424 Here are some examples of why using strcmp to sort is a bad idea:
2428 Say your partial symtab contains: "foo<char *>", "goo". Then, if
2429 we try to do a search for "foo<char*>", strcmp will locate this
2430 after "foo<char *>" and before "goo". Then lookup_partial_symbol
2431 will start looking at strings beginning with "goo", and will never
2432 see the correct match of "foo<char *>".
2434 Parenthesis example:
2436 In practice, this is less like to be an issue, but I'll give it a
2437 shot. Let's assume that '$' is a legitimate character to occur in
2438 symbols. (Which may well even be the case on some systems.) Then
2439 say that the partial symbol table contains "foo$" and "foo(int)".
2440 strcmp will put them in this order, since '$' < '('. Now, if the
2441 user searches for "foo", then strcmp will sort "foo" before "foo$".
2442 Then lookup_partial_symbol will notice that strcmp_iw("foo$",
2443 "foo") is false, so it won't proceed to the actual match of
2444 "foo(int)" with "foo". */
2447 strcmp_iw_ordered (const char *string1
, const char *string2
)
2449 while ((*string1
!= '\0') && (*string2
!= '\0'))
2451 while (isspace (*string1
))
2455 while (isspace (*string2
))
2459 if (*string1
!= *string2
)
2463 if (*string1
!= '\0')
2472 /* Characters are non-equal unless they're both '\0'; we want to
2473 make sure we get the comparison right according to our
2474 comparison in the cases where one of them is '\0' or '('. */
2476 if (*string2
== '\0')
2481 if (*string2
== '\0')
2486 if (*string2
== '(')
2489 return *string1
- *string2
;
2493 /* A simple comparison function with opposite semantics to strcmp. */
2496 streq (const char *lhs
, const char *rhs
)
2498 return !strcmp (lhs
, rhs
);
2504 ** Answer whether string_to_compare is a full or partial match to
2505 ** template_string. The partial match must be in sequence starting
2509 subset_compare (char *string_to_compare
, char *template_string
)
2512 if (template_string
!= (char *) NULL
&& string_to_compare
!= (char *) NULL
2513 && strlen (string_to_compare
) <= strlen (template_string
))
2516 (template_string
, string_to_compare
, strlen (string_to_compare
)) == 0);
2523 static void pagination_on_command (char *arg
, int from_tty
);
2525 pagination_on_command (char *arg
, int from_tty
)
2527 pagination_enabled
= 1;
2530 static void pagination_on_command (char *arg
, int from_tty
);
2532 pagination_off_command (char *arg
, int from_tty
)
2534 pagination_enabled
= 0;
2539 initialize_utils (void)
2541 struct cmd_list_element
*c
;
2543 c
= add_set_cmd ("width", class_support
, var_uinteger
, &chars_per_line
,
2544 "Set number of characters gdb thinks are in a line.",
2546 deprecated_add_show_from_set (c
, &showlist
);
2547 set_cmd_sfunc (c
, set_width_command
);
2549 c
= add_set_cmd ("height", class_support
, var_uinteger
, &lines_per_page
,
2550 "Set number of lines gdb thinks are in a page.", &setlist
);
2551 deprecated_add_show_from_set (c
, &showlist
);
2552 set_cmd_sfunc (c
, set_height_command
);
2556 deprecated_add_show_from_set
2557 (add_set_cmd ("demangle", class_support
, var_boolean
,
2559 "Set demangling of encoded C++/ObjC names when displaying symbols.",
2560 &setprintlist
), &showprintlist
);
2562 deprecated_add_show_from_set
2563 (add_set_cmd ("pagination", class_support
,
2564 var_boolean
, (char *) &pagination_enabled
,
2565 "Set state of pagination.", &setlist
), &showlist
);
2569 add_com ("am", class_support
, pagination_on_command
,
2570 "Enable pagination");
2571 add_com ("sm", class_support
, pagination_off_command
,
2572 "Disable pagination");
2575 deprecated_add_show_from_set
2576 (add_set_cmd ("sevenbit-strings", class_support
, var_boolean
,
2577 (char *) &sevenbit_strings
,
2578 "Set printing of 8-bit characters in strings as \\nnn.",
2579 &setprintlist
), &showprintlist
);
2581 deprecated_add_show_from_set
2582 (add_set_cmd ("asm-demangle", class_support
, var_boolean
,
2583 (char *) &asm_demangle
,
2584 "Set demangling of C++/ObjC names in disassembly listings.",
2585 &setprintlist
), &showprintlist
);
2588 /* Machine specific function to handle SIGWINCH signal. */
2590 #ifdef SIGWINCH_HANDLER_BODY
2591 SIGWINCH_HANDLER_BODY
2593 /* print routines to handle variable size regs, etc. */
2594 /* temporary storage using circular buffer */
2600 static char buf
[NUMCELLS
][CELLSIZE
];
2601 static int cell
= 0;
2602 if (++cell
>= NUMCELLS
)
2610 return (TARGET_ADDR_BIT
/ 8 * 2);
2614 paddr (CORE_ADDR addr
)
2616 return phex (addr
, TARGET_ADDR_BIT
/ 8);
2620 paddr_nz (CORE_ADDR addr
)
2622 return phex_nz (addr
, TARGET_ADDR_BIT
/ 8);
2626 decimal2str (char *paddr_str
, char *sign
, ULONGEST addr
)
2628 /* steal code from valprint.c:print_decimal(). Should this worry
2629 about the real size of addr as the above does? */
2630 unsigned long temp
[3];
2634 temp
[i
] = addr
% (1000 * 1000 * 1000);
2635 addr
/= (1000 * 1000 * 1000);
2638 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2642 sprintf (paddr_str
, "%s%lu", sign
, temp
[0]);
2645 sprintf (paddr_str
, "%s%lu%09lu", sign
, temp
[1], temp
[0]);
2648 sprintf (paddr_str
, "%s%lu%09lu%09lu", sign
, temp
[2], temp
[1], temp
[0]);
2651 internal_error (__FILE__
, __LINE__
,
2652 "failed internal consistency check");
2657 paddr_u (CORE_ADDR addr
)
2659 char *paddr_str
= get_cell ();
2660 decimal2str (paddr_str
, "", addr
);
2665 paddr_d (LONGEST addr
)
2667 char *paddr_str
= get_cell ();
2669 decimal2str (paddr_str
, "-", -addr
);
2671 decimal2str (paddr_str
, "", addr
);
2675 /* eliminate warning from compiler on 32-bit systems */
2676 static int thirty_two
= 32;
2679 phex (ULONGEST l
, int sizeof_l
)
2686 sprintf (str
, "%08lx%08lx",
2687 (unsigned long) (l
>> thirty_two
),
2688 (unsigned long) (l
& 0xffffffff));
2692 sprintf (str
, "%08lx", (unsigned long) l
);
2696 sprintf (str
, "%04x", (unsigned short) (l
& 0xffff));
2699 str
= phex (l
, sizeof (l
));
2706 phex_nz (ULONGEST l
, int sizeof_l
)
2713 unsigned long high
= (unsigned long) (l
>> thirty_two
);
2716 sprintf (str
, "%lx", (unsigned long) (l
& 0xffffffff));
2718 sprintf (str
, "%lx%08lx", high
, (unsigned long) (l
& 0xffffffff));
2723 sprintf (str
, "%lx", (unsigned long) l
);
2727 sprintf (str
, "%x", (unsigned short) (l
& 0xffff));
2730 str
= phex_nz (l
, sizeof (l
));
2737 /* Convert a CORE_ADDR into a string. */
2739 core_addr_to_string (const CORE_ADDR addr
)
2741 char *str
= get_cell ();
2743 strcat (str
, phex (addr
, sizeof (addr
)));
2748 core_addr_to_string_nz (const CORE_ADDR addr
)
2750 char *str
= get_cell ();
2752 strcat (str
, phex_nz (addr
, sizeof (addr
)));
2756 /* Convert a string back into a CORE_ADDR. */
2758 string_to_core_addr (const char *my_string
)
2761 if (my_string
[0] == '0' && tolower (my_string
[1]) == 'x')
2763 /* Assume that it is in decimal. */
2765 for (i
= 2; my_string
[i
] != '\0'; i
++)
2767 if (isdigit (my_string
[i
]))
2768 addr
= (my_string
[i
] - '0') + (addr
* 16);
2769 else if (isxdigit (my_string
[i
]))
2770 addr
= (tolower (my_string
[i
]) - 'a' + 0xa) + (addr
* 16);
2772 internal_error (__FILE__
, __LINE__
, "invalid hex");
2777 /* Assume that it is in decimal. */
2779 for (i
= 0; my_string
[i
] != '\0'; i
++)
2781 if (isdigit (my_string
[i
]))
2782 addr
= (my_string
[i
] - '0') + (addr
* 10);
2784 internal_error (__FILE__
, __LINE__
, "invalid decimal");
2791 gdb_realpath (const char *filename
)
2793 /* Method 1: The system has a compile time upper bound on a filename
2794 path. Use that and realpath() to canonicalize the name. This is
2795 the most common case. Note that, if there isn't a compile time
2796 upper bound, you want to avoid realpath() at all costs. */
2797 #if defined(HAVE_REALPATH)
2799 # if defined (PATH_MAX)
2801 # define USE_REALPATH
2802 # elif defined (MAXPATHLEN)
2803 char buf
[MAXPATHLEN
];
2804 # define USE_REALPATH
2806 # if defined (USE_REALPATH)
2807 const char *rp
= realpath (filename
, buf
);
2810 return xstrdup (rp
);
2813 #endif /* HAVE_REALPATH */
2815 /* Method 2: The host system (i.e., GNU) has the function
2816 canonicalize_file_name() which malloc's a chunk of memory and
2817 returns that, use that. */
2818 #if defined(HAVE_CANONICALIZE_FILE_NAME)
2820 char *rp
= canonicalize_file_name (filename
);
2822 return xstrdup (filename
);
2828 /* FIXME: cagney/2002-11-13:
2830 Method 2a: Use realpath() with a NULL buffer. Some systems, due
2831 to the problems described in in method 3, have modified their
2832 realpath() implementation so that it will allocate a buffer when
2833 NULL is passed in. Before this can be used, though, some sort of
2834 configure time test would need to be added. Otherwize the code
2835 will likely core dump. */
2837 /* Method 3: Now we're getting desperate! The system doesn't have a
2838 compile time buffer size and no alternative function. Query the
2839 OS, using pathconf(), for the buffer limit. Care is needed
2840 though, some systems do not limit PATH_MAX (return -1 for
2841 pathconf()) making it impossible to pass a correctly sized buffer
2842 to realpath() (it could always overflow). On those systems, we
2844 #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
2846 /* Find out the max path size. */
2847 long path_max
= pathconf ("/", _PC_PATH_MAX
);
2850 /* PATH_MAX is bounded. */
2851 char *buf
= alloca (path_max
);
2852 char *rp
= realpath (filename
, buf
);
2853 return xstrdup (rp
? rp
: filename
);
2858 /* This system is a lost cause, just dup the buffer. */
2859 return xstrdup (filename
);
2862 /* Return a copy of FILENAME, with its directory prefix canonicalized
2866 xfullpath (const char *filename
)
2868 const char *base_name
= lbasename (filename
);
2873 /* Extract the basename of filename, and return immediately
2874 a copy of filename if it does not contain any directory prefix. */
2875 if (base_name
== filename
)
2876 return xstrdup (filename
);
2878 dir_name
= alloca ((size_t) (base_name
- filename
+ 2));
2879 /* Allocate enough space to store the dir_name + plus one extra
2880 character sometimes needed under Windows (see below), and
2881 then the closing \000 character */
2882 strncpy (dir_name
, filename
, base_name
- filename
);
2883 dir_name
[base_name
- filename
] = '\000';
2885 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2886 /* We need to be careful when filename is of the form 'd:foo', which
2887 is equivalent of d:./foo, which is totally different from d:/foo. */
2888 if (strlen (dir_name
) == 2 && isalpha (dir_name
[0]) && dir_name
[1] == ':')
2891 dir_name
[3] = '\000';
2895 /* Canonicalize the directory prefix, and build the resulting
2896 filename. If the dirname realpath already contains an ending
2897 directory separator, avoid doubling it. */
2898 real_path
= gdb_realpath (dir_name
);
2899 if (IS_DIR_SEPARATOR (real_path
[strlen (real_path
) - 1]))
2900 result
= concat (real_path
, base_name
, NULL
);
2902 result
= concat (real_path
, SLASH_STRING
, base_name
, NULL
);
2909 /* This is the 32-bit CRC function used by the GNU separate debug
2910 facility. An executable may contain a section named
2911 .gnu_debuglink, which holds the name of a separate executable file
2912 containing its debug info, and a checksum of that file's contents,
2913 computed using this function. */
2915 gnu_debuglink_crc32 (unsigned long crc
, unsigned char *buf
, size_t len
)
2917 static const unsigned long crc32_table
[256] = {
2918 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
2919 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
2920 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
2921 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
2922 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
2923 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
2924 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
2925 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
2926 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
2927 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
2928 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
2929 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
2930 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
2931 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
2932 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
2933 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
2934 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
2935 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
2936 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
2937 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
2938 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
2939 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
2940 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
2941 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
2942 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
2943 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
2944 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
2945 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
2946 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
2947 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
2948 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
2949 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
2950 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
2951 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
2952 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
2953 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
2954 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
2955 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
2956 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
2957 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
2958 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
2959 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
2960 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
2961 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
2962 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
2963 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
2964 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
2965 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
2966 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
2967 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
2968 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
2973 crc
= ~crc
& 0xffffffff;
2974 for (end
= buf
+ len
; buf
< end
; ++buf
)
2975 crc
= crc32_table
[(crc
^ *buf
) & 0xff] ^ (crc
>> 8);
2976 return ~crc
& 0xffffffff;;
2980 align_up (ULONGEST v
, int n
)
2982 /* Check that N is really a power of two. */
2983 gdb_assert (n
&& (n
& (n
-1)) == 0);
2984 return (v
+ n
- 1) & -n
;
2988 align_down (ULONGEST v
, int n
)
2990 /* Check that N is really a power of two. */
2991 gdb_assert (n
&& (n
& (n
-1)) == 0);