1 /* General utility routines for GDB, the GNU debugger.
3 Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
4 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
5 2009 Free Software Foundation, Inc.
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 3 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, see <http://www.gnu.org/licenses/>. */
23 #include "gdb_assert.h"
25 #include "gdb_string.h"
26 #include "event-top.h"
27 #include "exceptions.h"
28 #include "gdbthread.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 "gdb_obstack.h"
59 #include "inferior.h" /* for signed_pointer_to_address */
61 #include <sys/param.h> /* For MAXPATHLEN */
63 #include "gdb_curses.h"
65 #include "readline/readline.h"
71 extern PTR
malloc (); /* OK: PTR */
73 #if !HAVE_DECL_REALLOC
74 extern PTR
realloc (); /* OK: PTR */
80 /* readline defines this. */
83 void (*deprecated_error_begin_hook
) (void);
85 /* Prototypes for local functions */
87 static void vfprintf_maybe_filtered (struct ui_file
*, const char *,
88 va_list, int) ATTR_FORMAT (printf
, 2, 0);
90 static void fputs_maybe_filtered (const char *, struct ui_file
*, int);
92 static void do_my_cleanups (struct cleanup
**, struct cleanup
*);
94 static void prompt_for_continue (void);
96 static void set_screen_size (void);
97 static void set_width (void);
99 /* A flag indicating whether to timestamp debugging messages. */
101 static int debug_timestamp
= 0;
103 /* Chain of cleanup actions established with make_cleanup,
104 to be executed if an error happens. */
106 static struct cleanup
*cleanup_chain
; /* cleaned up after a failed command */
107 static struct cleanup
*final_cleanup_chain
; /* cleaned up when gdb exits */
109 /* Nonzero if we have job control. */
113 /* Nonzero means a quit has been requested. */
117 /* Nonzero means quit immediately if Control-C is typed now, rather
118 than waiting until QUIT is executed. Be careful in setting this;
119 code which executes with immediate_quit set has to be very careful
120 about being able to deal with being interrupted at any time. It is
121 almost always better to use QUIT; the only exception I can think of
122 is being able to quit out of a system call (using EINTR loses if
123 the SIGINT happens between the previous QUIT and the system call).
124 To immediately quit in the case in which a SIGINT happens between
125 the previous QUIT and setting immediate_quit (desirable anytime we
126 expect to block), call QUIT after setting immediate_quit. */
130 /* Nonzero means that encoded C++/ObjC names should be printed out in their
131 C++/ObjC form rather than raw. */
135 show_demangle (struct ui_file
*file
, int from_tty
,
136 struct cmd_list_element
*c
, const char *value
)
138 fprintf_filtered (file
, _("\
139 Demangling of encoded C++/ObjC names when displaying symbols is %s.\n"),
143 /* Nonzero means that encoded C++/ObjC names should be printed out in their
144 C++/ObjC form even in assembler language displays. If this is set, but
145 DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */
147 int asm_demangle
= 0;
149 show_asm_demangle (struct ui_file
*file
, int from_tty
,
150 struct cmd_list_element
*c
, const char *value
)
152 fprintf_filtered (file
, _("\
153 Demangling of C++/ObjC names in disassembly listings is %s.\n"),
157 /* Nonzero means that strings with character values >0x7F should be printed
158 as octal escapes. Zero means just print the value (e.g. it's an
159 international character, and the terminal or window can cope.) */
161 int sevenbit_strings
= 0;
163 show_sevenbit_strings (struct ui_file
*file
, int from_tty
,
164 struct cmd_list_element
*c
, const char *value
)
166 fprintf_filtered (file
, _("\
167 Printing of 8-bit characters in strings as \\nnn is %s.\n"),
171 /* String to be printed before error messages, if any. */
173 char *error_pre_print
;
175 /* String to be printed before quit messages, if any. */
177 char *quit_pre_print
;
179 /* String to be printed before warning messages, if any. */
181 char *warning_pre_print
= "\nwarning: ";
183 int pagination_enabled
= 1;
185 show_pagination_enabled (struct ui_file
*file
, int from_tty
,
186 struct cmd_list_element
*c
, const char *value
)
188 fprintf_filtered (file
, _("State of pagination is %s.\n"), value
);
193 /* Add a new cleanup to the cleanup_chain,
194 and return the previous chain pointer
195 to be passed later to do_cleanups or discard_cleanups.
196 Args are FUNCTION to clean up with, and ARG to pass to it. */
199 make_cleanup (make_cleanup_ftype
*function
, void *arg
)
201 return make_my_cleanup (&cleanup_chain
, function
, arg
);
205 make_cleanup_dtor (make_cleanup_ftype
*function
, void *arg
,
206 void (*dtor
) (void *))
208 return make_my_cleanup2 (&cleanup_chain
,
209 function
, arg
, dtor
);
213 make_final_cleanup (make_cleanup_ftype
*function
, void *arg
)
215 return make_my_cleanup (&final_cleanup_chain
, function
, arg
);
219 do_freeargv (void *arg
)
221 freeargv ((char **) arg
);
225 make_cleanup_freeargv (char **arg
)
227 return make_my_cleanup (&cleanup_chain
, do_freeargv
, arg
);
231 do_bfd_close_cleanup (void *arg
)
237 make_cleanup_bfd_close (bfd
*abfd
)
239 return make_cleanup (do_bfd_close_cleanup
, abfd
);
243 do_close_cleanup (void *arg
)
250 make_cleanup_close (int fd
)
252 int *saved_fd
= xmalloc (sizeof (fd
));
254 return make_cleanup_dtor (do_close_cleanup
, saved_fd
, xfree
);
257 /* Helper function which does the work for make_cleanup_fclose. */
260 do_fclose_cleanup (void *arg
)
266 /* Return a new cleanup that closes FILE. */
269 make_cleanup_fclose (FILE *file
)
271 return make_cleanup (do_fclose_cleanup
, file
);
275 do_ui_file_delete (void *arg
)
277 ui_file_delete (arg
);
281 make_cleanup_ui_file_delete (struct ui_file
*arg
)
283 return make_my_cleanup (&cleanup_chain
, do_ui_file_delete
, arg
);
287 do_free_section_addr_info (void *arg
)
289 free_section_addr_info (arg
);
293 make_cleanup_free_section_addr_info (struct section_addr_info
*addrs
)
295 return make_my_cleanup (&cleanup_chain
, do_free_section_addr_info
, addrs
);
298 struct restore_integer_closure
305 restore_integer (void *p
)
307 struct restore_integer_closure
*closure
= p
;
308 *(closure
->variable
) = closure
->value
;
311 /* Remember the current value of *VARIABLE and make it restored when the cleanup
314 make_cleanup_restore_integer (int *variable
)
316 struct restore_integer_closure
*c
=
317 xmalloc (sizeof (struct restore_integer_closure
));
318 c
->variable
= variable
;
319 c
->value
= *variable
;
321 return make_my_cleanup2 (&cleanup_chain
, restore_integer
, (void *)c
,
326 make_my_cleanup2 (struct cleanup
**pmy_chain
, make_cleanup_ftype
*function
,
327 void *arg
, void (*free_arg
) (void *))
330 = (struct cleanup
*) xmalloc (sizeof (struct cleanup
));
331 struct cleanup
*old_chain
= *pmy_chain
;
333 new->next
= *pmy_chain
;
334 new->function
= function
;
335 new->free_arg
= free_arg
;
343 make_my_cleanup (struct cleanup
**pmy_chain
, make_cleanup_ftype
*function
,
346 return make_my_cleanup2 (pmy_chain
, function
, arg
, NULL
);
349 /* Discard cleanups and do the actions they describe
350 until we get back to the point OLD_CHAIN in the cleanup_chain. */
353 do_cleanups (struct cleanup
*old_chain
)
355 do_my_cleanups (&cleanup_chain
, old_chain
);
359 do_final_cleanups (struct cleanup
*old_chain
)
361 do_my_cleanups (&final_cleanup_chain
, old_chain
);
365 do_my_cleanups (struct cleanup
**pmy_chain
,
366 struct cleanup
*old_chain
)
369 while ((ptr
= *pmy_chain
) != old_chain
)
371 *pmy_chain
= ptr
->next
; /* Do this first incase recursion */
372 (*ptr
->function
) (ptr
->arg
);
374 (*ptr
->free_arg
) (ptr
->arg
);
379 /* Discard cleanups, not doing the actions they describe,
380 until we get back to the point OLD_CHAIN in the cleanup_chain. */
383 discard_cleanups (struct cleanup
*old_chain
)
385 discard_my_cleanups (&cleanup_chain
, old_chain
);
389 discard_final_cleanups (struct cleanup
*old_chain
)
391 discard_my_cleanups (&final_cleanup_chain
, old_chain
);
395 discard_my_cleanups (struct cleanup
**pmy_chain
,
396 struct cleanup
*old_chain
)
399 while ((ptr
= *pmy_chain
) != old_chain
)
401 *pmy_chain
= ptr
->next
;
403 (*ptr
->free_arg
) (ptr
->arg
);
408 /* Set the cleanup_chain to 0, and return the old cleanup chain. */
412 return save_my_cleanups (&cleanup_chain
);
416 save_final_cleanups (void)
418 return save_my_cleanups (&final_cleanup_chain
);
422 save_my_cleanups (struct cleanup
**pmy_chain
)
424 struct cleanup
*old_chain
= *pmy_chain
;
430 /* Restore the cleanup chain from a previously saved chain. */
432 restore_cleanups (struct cleanup
*chain
)
434 restore_my_cleanups (&cleanup_chain
, chain
);
438 restore_final_cleanups (struct cleanup
*chain
)
440 restore_my_cleanups (&final_cleanup_chain
, chain
);
444 restore_my_cleanups (struct cleanup
**pmy_chain
, struct cleanup
*chain
)
449 /* This function is useful for cleanups.
453 old_chain = make_cleanup (free_current_contents, &foo);
455 to arrange to free the object thus allocated. */
458 free_current_contents (void *ptr
)
460 void **location
= ptr
;
461 if (location
== NULL
)
462 internal_error (__FILE__
, __LINE__
,
463 _("free_current_contents: NULL pointer"));
464 if (*location
!= NULL
)
471 /* Provide a known function that does nothing, to use as a base for
472 for a possibly long chain of cleanups. This is useful where we
473 use the cleanup chain for handling normal cleanups as well as dealing
474 with cleanups that need to be done as a result of a call to error().
475 In such cases, we may not be certain where the first cleanup is, unless
476 we have a do-nothing one to always use as the base. */
479 null_cleanup (void *arg
)
483 /* Continuations are implemented as cleanups internally. Inherit from
490 /* Add a continuation to the continuation list of THREAD. The new
491 continuation will be added at the front. */
493 add_continuation (struct thread_info
*thread
,
494 void (*continuation_hook
) (void *), void *args
,
495 void (*continuation_free_args
) (void *))
497 struct cleanup
*as_cleanup
= &thread
->continuations
->base
;
498 make_cleanup_ftype
*continuation_hook_fn
= continuation_hook
;
500 make_my_cleanup2 (&as_cleanup
,
501 continuation_hook_fn
,
503 continuation_free_args
);
505 thread
->continuations
= (struct continuation
*) as_cleanup
;
508 /* Add a continuation to the continuation list of INFERIOR. The new
509 continuation will be added at the front. */
512 add_inferior_continuation (void (*continuation_hook
) (void *), void *args
,
513 void (*continuation_free_args
) (void *))
515 struct inferior
*inf
= current_inferior ();
516 struct cleanup
*as_cleanup
= &inf
->continuations
->base
;
517 make_cleanup_ftype
*continuation_hook_fn
= continuation_hook
;
519 make_my_cleanup2 (&as_cleanup
,
520 continuation_hook_fn
,
522 continuation_free_args
);
524 inf
->continuations
= (struct continuation
*) as_cleanup
;
527 /* Do all continuations of the current inferior. */
530 do_all_inferior_continuations (void)
532 struct cleanup
*old_chain
;
533 struct cleanup
*as_cleanup
;
534 struct inferior
*inf
= current_inferior ();
536 if (inf
->continuations
== NULL
)
539 /* Copy the list header into another pointer, and set the global
540 list header to null, so that the global list can change as a side
541 effect of invoking the continuations and the processing of the
542 preexisting continuations will not be affected. */
544 as_cleanup
= &inf
->continuations
->base
;
545 inf
->continuations
= NULL
;
547 /* Work now on the list we have set aside. */
548 do_my_cleanups (&as_cleanup
, NULL
);
551 /* Get rid of all the inferior-wide continuations of INF. */
554 discard_all_inferior_continuations (struct inferior
*inf
)
556 struct cleanup
*continuation_ptr
= &inf
->continuations
->base
;
557 discard_my_cleanups (&continuation_ptr
, NULL
);
558 inf
->continuations
= NULL
;
562 restore_thread_cleanup (void *arg
)
564 ptid_t
*ptid_p
= arg
;
565 switch_to_thread (*ptid_p
);
568 /* Walk down the continuation list of PTID, and execute all the
569 continuations. There is a problem though. In some cases new
570 continuations may be added while we are in the middle of this loop.
571 If this happens they will be added in the front, and done before we
572 have a chance of exhausting those that were already there. We need
573 to then save the beginning of the list in a pointer and do the
574 continuations from there on, instead of using the global beginning
575 of list as our iteration pointer. */
577 do_all_continuations_ptid (ptid_t ptid
,
578 struct continuation
**continuations_p
)
580 struct cleanup
*old_chain
;
581 ptid_t current_thread
;
582 struct cleanup
*as_cleanup
;
584 if (*continuations_p
== NULL
)
587 current_thread
= inferior_ptid
;
589 /* Restore selected thread on exit. Don't try to restore the frame
592 - When running continuations, the selected frame is always #0.
594 - The continuations may trigger symbol file loads, which may
595 change the frame layout (frame ids change), which would trigger
596 a warning if we used make_cleanup_restore_current_thread. */
598 old_chain
= make_cleanup (restore_thread_cleanup
, ¤t_thread
);
600 /* Let the continuation see this thread as selected. */
601 switch_to_thread (ptid
);
603 /* Copy the list header into another pointer, and set the global
604 list header to null, so that the global list can change as a side
605 effect of invoking the continuations and the processing of the
606 preexisting continuations will not be affected. */
608 as_cleanup
= &(*continuations_p
)->base
;
609 *continuations_p
= NULL
;
611 /* Work now on the list we have set aside. */
612 do_my_cleanups (&as_cleanup
, NULL
);
614 do_cleanups (old_chain
);
617 /* Callback for iterate over threads. */
619 do_all_continuations_thread_callback (struct thread_info
*thread
, void *data
)
621 do_all_continuations_ptid (thread
->ptid
, &thread
->continuations
);
625 /* Do all continuations of thread THREAD. */
627 do_all_continuations_thread (struct thread_info
*thread
)
629 do_all_continuations_thread_callback (thread
, NULL
);
632 /* Do all continuations of all threads. */
634 do_all_continuations (void)
636 iterate_over_threads (do_all_continuations_thread_callback
, NULL
);
639 /* Callback for iterate over threads. */
641 discard_all_continuations_thread_callback (struct thread_info
*thread
,
644 struct cleanup
*continuation_ptr
= &thread
->continuations
->base
;
645 discard_my_cleanups (&continuation_ptr
, NULL
);
646 thread
->continuations
= NULL
;
650 /* Get rid of all the continuations of THREAD. */
652 discard_all_continuations_thread (struct thread_info
*thread
)
654 discard_all_continuations_thread_callback (thread
, NULL
);
657 /* Get rid of all the continuations of all threads. */
659 discard_all_continuations (void)
661 iterate_over_threads (discard_all_continuations_thread_callback
, NULL
);
665 /* Add a continuation to the intermediate continuation list of THREAD.
666 The new continuation will be added at the front. */
668 add_intermediate_continuation (struct thread_info
*thread
,
669 void (*continuation_hook
)
670 (void *), void *args
,
671 void (*continuation_free_args
) (void *))
673 struct cleanup
*as_cleanup
= &thread
->intermediate_continuations
->base
;
674 make_cleanup_ftype
*continuation_hook_fn
= continuation_hook
;
676 make_my_cleanup2 (&as_cleanup
,
677 continuation_hook_fn
,
679 continuation_free_args
);
681 thread
->intermediate_continuations
= (struct continuation
*) as_cleanup
;
684 /* Walk down the cmd_continuation list, and execute all the
685 continuations. There is a problem though. In some cases new
686 continuations may be added while we are in the middle of this
687 loop. If this happens they will be added in the front, and done
688 before we have a chance of exhausting those that were already
689 there. We need to then save the beginning of the list in a pointer
690 and do the continuations from there on, instead of using the
691 global beginning of list as our iteration pointer.*/
693 do_all_intermediate_continuations_thread_callback (struct thread_info
*thread
,
696 do_all_continuations_ptid (thread
->ptid
,
697 &thread
->intermediate_continuations
);
701 /* Do all intermediate continuations of thread THREAD. */
703 do_all_intermediate_continuations_thread (struct thread_info
*thread
)
705 do_all_intermediate_continuations_thread_callback (thread
, NULL
);
708 /* Do all intermediate continuations of all threads. */
710 do_all_intermediate_continuations (void)
712 iterate_over_threads (do_all_intermediate_continuations_thread_callback
, NULL
);
715 /* Callback for iterate over threads. */
717 discard_all_intermediate_continuations_thread_callback (struct thread_info
*thread
,
720 struct cleanup
*continuation_ptr
= &thread
->intermediate_continuations
->base
;
721 discard_my_cleanups (&continuation_ptr
, NULL
);
722 thread
->intermediate_continuations
= NULL
;
726 /* Get rid of all the intermediate continuations of THREAD. */
728 discard_all_intermediate_continuations_thread (struct thread_info
*thread
)
730 discard_all_intermediate_continuations_thread_callback (thread
, NULL
);
733 /* Get rid of all the intermediate continuations of all threads. */
735 discard_all_intermediate_continuations (void)
737 iterate_over_threads (discard_all_intermediate_continuations_thread_callback
, NULL
);
742 /* Print a warning message. The first argument STRING is the warning
743 message, used as an fprintf format string, the second is the
744 va_list of arguments for that string. A warning is unfiltered (not
745 paginated) so that the user does not need to page through each
746 screen full of warnings when there are lots of them. */
749 vwarning (const char *string
, va_list args
)
751 if (deprecated_warning_hook
)
752 (*deprecated_warning_hook
) (string
, args
);
755 target_terminal_ours ();
756 wrap_here (""); /* Force out any buffered output */
757 gdb_flush (gdb_stdout
);
758 if (warning_pre_print
)
759 fputs_unfiltered (warning_pre_print
, gdb_stderr
);
760 vfprintf_unfiltered (gdb_stderr
, string
, args
);
761 fprintf_unfiltered (gdb_stderr
, "\n");
766 /* Print a warning message.
767 The first argument STRING is the warning message, used as a fprintf string,
768 and the remaining args are passed as arguments to it.
769 The primary difference between warnings and errors is that a warning
770 does not force the return to command level. */
773 warning (const char *string
, ...)
776 va_start (args
, string
);
777 vwarning (string
, args
);
781 /* Print an error message and return to command level.
782 The first argument STRING is the error message, used as a fprintf string,
783 and the remaining args are passed as arguments to it. */
786 verror (const char *string
, va_list args
)
788 throw_verror (GENERIC_ERROR
, string
, args
);
792 error (const char *string
, ...)
795 va_start (args
, string
);
796 throw_verror (GENERIC_ERROR
, string
, args
);
800 /* Print an error message and quit.
801 The first argument STRING is the error message, used as a fprintf string,
802 and the remaining args are passed as arguments to it. */
805 vfatal (const char *string
, va_list args
)
807 throw_vfatal (string
, args
);
811 fatal (const char *string
, ...)
814 va_start (args
, string
);
815 throw_vfatal (string
, args
);
820 error_stream (struct ui_file
*stream
)
823 char *message
= ui_file_xstrdup (stream
, &len
);
824 make_cleanup (xfree
, message
);
825 error (("%s"), message
);
828 /* Allow the user to configure the debugger behavior with respect to
829 what to do when an internal problem is detected. */
831 const char internal_problem_ask
[] = "ask";
832 const char internal_problem_yes
[] = "yes";
833 const char internal_problem_no
[] = "no";
834 static const char *internal_problem_modes
[] =
836 internal_problem_ask
,
837 internal_problem_yes
,
841 static const char *internal_problem_mode
= internal_problem_ask
;
843 /* Print a message reporting an internal error/warning. Ask the user
844 if they want to continue, dump core, or just exit. Return
845 something to indicate a quit. */
847 struct internal_problem
850 const char *should_quit
;
851 const char *should_dump_core
;
854 /* Report a problem, internal to GDB, to the user. Once the problem
855 has been reported, and assuming GDB didn't quit, the caller can
856 either allow execution to resume or throw an error. */
858 static void ATTR_FORMAT (printf
, 4, 0)
859 internal_vproblem (struct internal_problem
*problem
,
860 const char *file
, int line
, const char *fmt
, va_list ap
)
867 /* Don't allow infinite error/warning recursion. */
869 static char msg
[] = "Recursive internal problem.\n";
877 fputs_unfiltered (msg
, gdb_stderr
);
878 abort (); /* NOTE: GDB has only four calls to abort(). */
881 /* Newer GLIBC versions put the warn_unused_result attribute
882 on write, but this is one of those rare cases where
883 ignoring the return value is correct. Casting to (void)
884 does not fix this problem. This is the solution suggested
885 at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */
886 if (write (STDERR_FILENO
, msg
, sizeof (msg
)) != sizeof (msg
))
887 abort (); /* NOTE: GDB has only four calls to abort(). */
892 /* Try to get the message out and at the start of a new line. */
893 target_terminal_ours ();
896 /* Create a string containing the full error/warning message. Need
897 to call query with this full string, as otherwize the reason
898 (error/warning) and question become separated. Format using a
899 style similar to a compiler error message. Include extra detail
900 so that the user knows that they are living on the edge. */
903 msg
= xstrvprintf (fmt
, ap
);
904 reason
= xstrprintf ("\
906 A problem internal to GDB has been detected,\n\
907 further debugging may prove unreliable.", file
, line
, problem
->name
, msg
);
909 make_cleanup (xfree
, reason
);
912 if (problem
->should_quit
== internal_problem_ask
)
914 /* Default (yes/batch case) is to quit GDB. When in batch mode
915 this lessens the likelihood of GDB going into an infinite
917 quit_p
= query (_("%s\nQuit this debugging session? "), reason
);
919 else if (problem
->should_quit
== internal_problem_yes
)
921 else if (problem
->should_quit
== internal_problem_no
)
924 internal_error (__FILE__
, __LINE__
, _("bad switch"));
926 if (problem
->should_dump_core
== internal_problem_ask
)
928 /* Default (yes/batch case) is to dump core. This leaves a GDB
929 `dropping' so that it is easier to see that something went
931 dump_core_p
= query (_("%s\nCreate a core file of GDB? "), reason
);
933 else if (problem
->should_dump_core
== internal_problem_yes
)
935 else if (problem
->should_dump_core
== internal_problem_no
)
938 internal_error (__FILE__
, __LINE__
, _("bad switch"));
943 abort (); /* NOTE: GDB has only four calls to abort(). */
951 #ifdef HAVE_WORKING_FORK
953 abort (); /* NOTE: GDB has only four calls to abort(). */
961 static struct internal_problem internal_error_problem
= {
962 "internal-error", internal_problem_ask
, internal_problem_ask
966 internal_verror (const char *file
, int line
, const char *fmt
, va_list ap
)
968 internal_vproblem (&internal_error_problem
, file
, line
, fmt
, ap
);
969 deprecated_throw_reason (RETURN_ERROR
);
973 internal_error (const char *file
, int line
, const char *string
, ...)
976 va_start (ap
, string
);
977 internal_verror (file
, line
, string
, ap
);
981 static struct internal_problem internal_warning_problem
= {
982 "internal-warning", internal_problem_ask
, internal_problem_ask
986 internal_vwarning (const char *file
, int line
, const char *fmt
, va_list ap
)
988 internal_vproblem (&internal_warning_problem
, file
, line
, fmt
, ap
);
992 internal_warning (const char *file
, int line
, const char *string
, ...)
995 va_start (ap
, string
);
996 internal_vwarning (file
, line
, string
, ap
);
1000 /* Dummy functions to keep add_prefix_cmd happy. */
1003 set_internal_problem_cmd (char *args
, int from_tty
)
1008 show_internal_problem_cmd (char *args
, int from_tty
)
1012 /* When GDB reports an internal problem (error or warning) it gives
1013 the user the opportunity to quit GDB and/or create a core file of
1014 the current debug session. This function registers a few commands
1015 that make it possible to specify that GDB should always or never
1016 quit or create a core file, without asking. The commands look
1019 maint set PROBLEM-NAME quit ask|yes|no
1020 maint show PROBLEM-NAME quit
1021 maint set PROBLEM-NAME corefile ask|yes|no
1022 maint show PROBLEM-NAME corefile
1024 Where PROBLEM-NAME is currently "internal-error" or
1025 "internal-warning". */
1028 add_internal_problem_command (struct internal_problem
*problem
)
1030 struct cmd_list_element
**set_cmd_list
;
1031 struct cmd_list_element
**show_cmd_list
;
1035 set_cmd_list
= xmalloc (sizeof (*set_cmd_list
));
1036 show_cmd_list
= xmalloc (sizeof (*set_cmd_list
));
1037 *set_cmd_list
= NULL
;
1038 *show_cmd_list
= NULL
;
1040 set_doc
= xstrprintf (_("Configure what GDB does when %s is detected."),
1043 show_doc
= xstrprintf (_("Show what GDB does when %s is detected."),
1046 add_prefix_cmd ((char*) problem
->name
,
1047 class_maintenance
, set_internal_problem_cmd
, set_doc
,
1049 concat ("maintenance set ", problem
->name
, " ", NULL
),
1050 0/*allow-unknown*/, &maintenance_set_cmdlist
);
1052 add_prefix_cmd ((char*) problem
->name
,
1053 class_maintenance
, show_internal_problem_cmd
, show_doc
,
1055 concat ("maintenance show ", problem
->name
, " ", NULL
),
1056 0/*allow-unknown*/, &maintenance_show_cmdlist
);
1058 set_doc
= xstrprintf (_("\
1059 Set whether GDB should quit when an %s is detected"),
1061 show_doc
= xstrprintf (_("\
1062 Show whether GDB will quit when an %s is detected"),
1064 add_setshow_enum_cmd ("quit", class_maintenance
,
1065 internal_problem_modes
,
1066 &problem
->should_quit
,
1069 NULL
, /* help_doc */
1071 NULL
, /* showfunc */
1075 set_doc
= xstrprintf (_("\
1076 Set whether GDB should create a core file of GDB when %s is detected"),
1078 show_doc
= xstrprintf (_("\
1079 Show whether GDB will create a core file of GDB when %s is detected"),
1081 add_setshow_enum_cmd ("corefile", class_maintenance
,
1082 internal_problem_modes
,
1083 &problem
->should_dump_core
,
1086 NULL
, /* help_doc */
1088 NULL
, /* showfunc */
1093 /* Print the system error message for errno, and also mention STRING
1094 as the file name for which the error was encountered.
1095 Then return to command level. */
1098 perror_with_name (const char *string
)
1103 err
= safe_strerror (errno
);
1104 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
1105 strcpy (combined
, string
);
1106 strcat (combined
, ": ");
1107 strcat (combined
, err
);
1109 /* I understand setting these is a matter of taste. Still, some people
1110 may clear errno but not know about bfd_error. Doing this here is not
1112 bfd_set_error (bfd_error_no_error
);
1115 error (_("%s."), combined
);
1118 /* Print the system error message for ERRCODE, and also mention STRING
1119 as the file name for which the error was encountered. */
1122 print_sys_errmsg (const char *string
, int errcode
)
1127 err
= safe_strerror (errcode
);
1128 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
1129 strcpy (combined
, string
);
1130 strcat (combined
, ": ");
1131 strcat (combined
, err
);
1133 /* We want anything which was printed on stdout to come out first, before
1135 gdb_flush (gdb_stdout
);
1136 fprintf_unfiltered (gdb_stderr
, "%s.\n", combined
);
1139 /* Control C eventually causes this to be called, at a convenient time. */
1145 /* No steenking SIGINT will ever be coming our way when the
1146 program is resumed. Don't lie. */
1150 /* If there is no terminal switching for this target, then we can't
1151 possibly get screwed by the lack of job control. */
1152 || current_target
.to_terminal_ours
== NULL
)
1155 fatal ("Quit (expect signal SIGINT when the program is resumed)");
1160 /* Called when a memory allocation fails, with the number of bytes of
1161 memory requested in SIZE. */
1168 internal_error (__FILE__
, __LINE__
,
1169 _("virtual memory exhausted: can't allocate %ld bytes."),
1174 internal_error (__FILE__
, __LINE__
, _("virtual memory exhausted."));
1178 /* The xmalloc() (libiberty.h) family of memory management routines.
1180 These are like the ISO-C malloc() family except that they implement
1181 consistent semantics and guard against typical memory management
1184 /* NOTE: These are declared using PTR to ensure consistency with
1185 "libiberty.h". xfree() is GDB local. */
1188 xmalloc (size_t size
)
1192 /* See libiberty/xmalloc.c. This function need's to match that's
1193 semantics. It never returns NULL. */
1197 val
= malloc (size
); /* OK: malloc */
1205 xzalloc (size_t size
)
1207 return xcalloc (1, size
);
1211 xrealloc (PTR ptr
, size_t size
) /* OK: PTR */
1215 /* See libiberty/xmalloc.c. This function need's to match that's
1216 semantics. It never returns NULL. */
1221 val
= realloc (ptr
, size
); /* OK: realloc */
1223 val
= malloc (size
); /* OK: malloc */
1231 xcalloc (size_t number
, size_t size
)
1235 /* See libiberty/xmalloc.c. This function need's to match that's
1236 semantics. It never returns NULL. */
1237 if (number
== 0 || size
== 0)
1243 mem
= calloc (number
, size
); /* OK: xcalloc */
1245 nomem (number
* size
);
1254 free (ptr
); /* OK: free */
1258 /* Like asprintf/vasprintf but get an internal_error if the call
1262 xstrprintf (const char *format
, ...)
1266 va_start (args
, format
);
1267 ret
= xstrvprintf (format
, args
);
1273 xasprintf (char **ret
, const char *format
, ...)
1276 va_start (args
, format
);
1277 (*ret
) = xstrvprintf (format
, args
);
1282 xvasprintf (char **ret
, const char *format
, va_list ap
)
1284 (*ret
) = xstrvprintf (format
, ap
);
1288 xstrvprintf (const char *format
, va_list ap
)
1291 int status
= vasprintf (&ret
, format
, ap
);
1292 /* NULL is returned when there was a memory allocation problem, or
1293 any other error (for instance, a bad format string). A negative
1294 status (the printed length) with a non-NULL buffer should never
1295 happen, but just to be sure. */
1296 if (ret
== NULL
|| status
< 0)
1297 internal_error (__FILE__
, __LINE__
, _("vasprintf call failed"));
1302 xsnprintf (char *str
, size_t size
, const char *format
, ...)
1307 va_start (args
, format
);
1308 ret
= vsnprintf (str
, size
, format
, args
);
1309 gdb_assert (ret
< size
);
1315 /* My replacement for the read system call.
1316 Used like `read' but keeps going if `read' returns too soon. */
1319 myread (int desc
, char *addr
, int len
)
1326 val
= read (desc
, addr
, len
);
1330 return orglen
- len
;
1337 /* Make a copy of the string at PTR with SIZE characters
1338 (and add a null character at the end in the copy).
1339 Uses malloc to get the space. Returns the address of the copy. */
1342 savestring (const char *ptr
, size_t size
)
1344 char *p
= (char *) xmalloc (size
+ 1);
1345 memcpy (p
, ptr
, size
);
1351 print_spaces (int n
, struct ui_file
*file
)
1353 fputs_unfiltered (n_spaces (n
), file
);
1356 /* Print a host address. */
1359 gdb_print_host_address (const void *addr
, struct ui_file
*stream
)
1361 fprintf_filtered (stream
, "%s", host_address_to_string (addr
));
1365 /* This function supports the query, nquery, and yquery functions.
1366 Ask user a y-or-n question and return 0 if answer is no, 1 if
1367 answer is yes, or default the answer to the specified default
1368 (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a
1369 default answer, or '\0' for no default.
1370 CTLSTR is the control string and should end in "? ". It should
1371 not say how to answer, because we do that.
1372 ARGS are the arguments passed along with the CTLSTR argument to
1375 static int ATTR_FORMAT (printf
, 1, 0)
1376 defaulted_query (const char *ctlstr
, const char defchar
, va_list args
)
1382 char def_answer
, not_def_answer
;
1383 char *y_string
, *n_string
, *question
;
1385 /* Set up according to which answer is the default. */
1386 if (defchar
== '\0')
1390 not_def_answer
= 'N';
1394 else if (defchar
== 'y')
1398 not_def_answer
= 'N';
1406 not_def_answer
= 'Y';
1411 /* Automatically answer the default value if the user did not want
1416 /* If input isn't coming from the user directly, just say what
1417 question we're asking, and then answer "yes" automatically. This
1418 way, important error messages don't get lost when talking to GDB
1420 if (! input_from_terminal_p ())
1423 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1425 printf_filtered (_("(%s or %s) [answered %c; input not from terminal]\n"),
1426 y_string
, n_string
, def_answer
);
1427 gdb_flush (gdb_stdout
);
1432 /* Automatically answer the default value if input is not from the user
1433 directly, or if the user did not want prompts. */
1434 if (!input_from_terminal_p () || !caution
)
1437 if (deprecated_query_hook
)
1439 return deprecated_query_hook (ctlstr
, args
);
1442 /* Format the question outside of the loop, to avoid reusing args. */
1443 question
= xstrvprintf (ctlstr
, args
);
1447 wrap_here (""); /* Flush any buffered output */
1448 gdb_flush (gdb_stdout
);
1450 if (annotation_level
> 1)
1451 printf_filtered (("\n\032\032pre-query\n"));
1453 fputs_filtered (question
, gdb_stdout
);
1454 printf_filtered (_("(%s or %s) "), y_string
, n_string
);
1456 if (annotation_level
> 1)
1457 printf_filtered (("\n\032\032query\n"));
1460 gdb_flush (gdb_stdout
);
1462 answer
= fgetc (stdin
);
1463 clearerr (stdin
); /* in case of C-d */
1464 if (answer
== EOF
) /* C-d */
1466 printf_filtered ("EOF [assumed %c]\n", def_answer
);
1470 /* Eat rest of input line, to EOF or newline */
1474 ans2
= fgetc (stdin
);
1477 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1481 /* Check answer. For the non-default, the user must specify
1482 the non-default explicitly. */
1483 if (answer
== not_def_answer
)
1485 retval
= !def_value
;
1488 /* Otherwise, if a default was specified, the user may either
1489 specify the required input or have it default by entering
1491 if (answer
== def_answer
1492 || (defchar
!= '\0' &&
1493 (answer
== '\n' || answer
== '\r' || answer
== EOF
)))
1498 /* Invalid entries are not defaulted and require another selection. */
1499 printf_filtered (_("Please answer %s or %s.\n"),
1500 y_string
, n_string
);
1504 if (annotation_level
> 1)
1505 printf_filtered (("\n\032\032post-query\n"));
1510 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1511 answer is yes, or 0 if answer is defaulted.
1512 Takes three args which are given to printf to print the question.
1513 The first, a control string, should end in "? ".
1514 It should not say how to answer, because we do that. */
1517 nquery (const char *ctlstr
, ...)
1521 va_start (args
, ctlstr
);
1522 return defaulted_query (ctlstr
, 'n', args
);
1526 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1527 answer is yes, or 1 if answer is defaulted.
1528 Takes three args which are given to printf to print the question.
1529 The first, a control string, should end in "? ".
1530 It should not say how to answer, because we do that. */
1533 yquery (const char *ctlstr
, ...)
1537 va_start (args
, ctlstr
);
1538 return defaulted_query (ctlstr
, 'y', args
);
1542 /* Ask user a y-or-n question and return 1 iff answer is yes.
1543 Takes three args which are given to printf to print the question.
1544 The first, a control string, should end in "? ".
1545 It should not say how to answer, because we do that. */
1548 query (const char *ctlstr
, ...)
1552 va_start (args
, ctlstr
);
1553 return defaulted_query (ctlstr
, '\0', args
);
1557 /* Print an error message saying that we couldn't make sense of a
1558 \^mumble sequence in a string or character constant. START and END
1559 indicate a substring of some larger string that contains the
1560 erroneous backslash sequence, missing the initial backslash. */
1562 no_control_char_error (const char *start
, const char *end
)
1564 int len
= end
- start
;
1565 char *copy
= alloca (end
- start
+ 1);
1567 memcpy (copy
, start
, len
);
1570 error (_("There is no control character `\\%s' in the `%s' character set."),
1571 copy
, target_charset ());
1574 /* Parse a C escape sequence. STRING_PTR points to a variable
1575 containing a pointer to the string to parse. That pointer
1576 should point to the character after the \. That pointer
1577 is updated past the characters we use. The value of the
1578 escape sequence is returned.
1580 A negative value means the sequence \ newline was seen,
1581 which is supposed to be equivalent to nothing at all.
1583 If \ is followed by a null character, we return a negative
1584 value and leave the string pointer pointing at the null character.
1586 If \ is followed by 000, we return 0 and leave the string pointer
1587 after the zeros. A value of 0 does not mean end of string. */
1590 parse_escape (char **string_ptr
)
1593 int c
= *(*string_ptr
)++;
1594 if (c_parse_backslash (c
, &target_char
))
1606 /* Remember where this escape sequence started, for reporting
1608 char *sequence_start_pos
= *string_ptr
- 1;
1610 c
= *(*string_ptr
)++;
1614 /* XXXCHARSET: What is `delete' in the host character set? */
1617 if (!host_char_to_target (c
, &target_char
))
1618 error (_("There is no character corresponding to `Delete' "
1619 "in the target character set `%s'."), host_charset ());
1624 target_char
= parse_escape (string_ptr
);
1627 if (!host_char_to_target (c
, &target_char
))
1628 no_control_char_error (sequence_start_pos
, *string_ptr
);
1631 /* Now target_char is something like `c', and we want to find
1632 its control-character equivalent. */
1633 if (!target_char_to_control_char (target_char
, &target_char
))
1634 no_control_char_error (sequence_start_pos
, *string_ptr
);
1639 /* XXXCHARSET: we need to use isdigit and value-of-digit
1640 methods of the host character set here. */
1656 if (c
>= '0' && c
<= '7')
1670 if (!host_char_to_target (c
, &target_char
))
1672 ("The escape sequence `\%c' is equivalent to plain `%c', which"
1673 " has no equivalent\n" "in the `%s' character set.", c
, c
,
1679 /* Print the character C on STREAM as part of the contents of a literal
1680 string whose delimiter is QUOTER. Note that this routine should only
1681 be call for printing things which are independent of the language
1682 of the program being debugged. */
1685 printchar (int c
, void (*do_fputs
) (const char *, struct ui_file
*),
1686 void (*do_fprintf
) (struct ui_file
*, const char *, ...)
1687 ATTRIBUTE_FPTR_PRINTF_2
, struct ui_file
*stream
, int quoter
)
1690 c
&= 0xFF; /* Avoid sign bit follies */
1692 if (c
< 0x20 || /* Low control chars */
1693 (c
>= 0x7F && c
< 0xA0) || /* DEL, High controls */
1694 (sevenbit_strings
&& c
>= 0x80))
1695 { /* high order bit set */
1699 do_fputs ("\\n", stream
);
1702 do_fputs ("\\b", stream
);
1705 do_fputs ("\\t", stream
);
1708 do_fputs ("\\f", stream
);
1711 do_fputs ("\\r", stream
);
1714 do_fputs ("\\e", stream
);
1717 do_fputs ("\\a", stream
);
1720 do_fprintf (stream
, "\\%.3o", (unsigned int) c
);
1726 if (c
== '\\' || c
== quoter
)
1727 do_fputs ("\\", stream
);
1728 do_fprintf (stream
, "%c", c
);
1732 /* Print the character C on STREAM as part of the contents of a
1733 literal string whose delimiter is QUOTER. Note that these routines
1734 should only be call for printing things which are independent of
1735 the language of the program being debugged. */
1738 fputstr_filtered (const char *str
, int quoter
, struct ui_file
*stream
)
1741 printchar (*str
++, fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1745 fputstr_unfiltered (const char *str
, int quoter
, struct ui_file
*stream
)
1748 printchar (*str
++, fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1752 fputstrn_filtered (const char *str
, int n
, int quoter
,
1753 struct ui_file
*stream
)
1756 for (i
= 0; i
< n
; i
++)
1757 printchar (str
[i
], fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1761 fputstrn_unfiltered (const char *str
, int n
, int quoter
,
1762 struct ui_file
*stream
)
1765 for (i
= 0; i
< n
; i
++)
1766 printchar (str
[i
], fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1770 /* Number of lines per page or UINT_MAX if paging is disabled. */
1771 static unsigned int lines_per_page
;
1773 show_lines_per_page (struct ui_file
*file
, int from_tty
,
1774 struct cmd_list_element
*c
, const char *value
)
1776 fprintf_filtered (file
, _("\
1777 Number of lines gdb thinks are in a page is %s.\n"),
1781 /* Number of chars per line or UINT_MAX if line folding is disabled. */
1782 static unsigned int chars_per_line
;
1784 show_chars_per_line (struct ui_file
*file
, int from_tty
,
1785 struct cmd_list_element
*c
, const char *value
)
1787 fprintf_filtered (file
, _("\
1788 Number of characters gdb thinks are in a line is %s.\n"),
1792 /* Current count of lines printed on this page, chars on this line. */
1793 static unsigned int lines_printed
, chars_printed
;
1795 /* Buffer and start column of buffered text, for doing smarter word-
1796 wrapping. When someone calls wrap_here(), we start buffering output
1797 that comes through fputs_filtered(). If we see a newline, we just
1798 spit it out and forget about the wrap_here(). If we see another
1799 wrap_here(), we spit it out and remember the newer one. If we see
1800 the end of the line, we spit out a newline, the indent, and then
1801 the buffered output. */
1803 /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which
1804 are waiting to be output (they have already been counted in chars_printed).
1805 When wrap_buffer[0] is null, the buffer is empty. */
1806 static char *wrap_buffer
;
1808 /* Pointer in wrap_buffer to the next character to fill. */
1809 static char *wrap_pointer
;
1811 /* String to indent by if the wrap occurs. Must not be NULL if wrap_column
1813 static char *wrap_indent
;
1815 /* Column number on the screen where wrap_buffer begins, or 0 if wrapping
1816 is not in effect. */
1817 static int wrap_column
;
1820 /* Inialize the number of lines per page and chars per line. */
1823 init_page_info (void)
1826 if (!tui_get_command_dimension (&chars_per_line
, &lines_per_page
))
1831 #if defined(__GO32__)
1832 rows
= ScreenRows ();
1833 cols
= ScreenCols ();
1834 lines_per_page
= rows
;
1835 chars_per_line
= cols
;
1837 /* Make sure Readline has initialized its terminal settings. */
1838 rl_reset_terminal (NULL
);
1840 /* Get the screen size from Readline. */
1841 rl_get_screen_size (&rows
, &cols
);
1842 lines_per_page
= rows
;
1843 chars_per_line
= cols
;
1845 /* Readline should have fetched the termcap entry for us. */
1846 if (tgetnum ("li") < 0 || getenv ("EMACS"))
1848 /* The number of lines per page is not mentioned in the
1849 terminal description. This probably means that paging is
1850 not useful (e.g. emacs shell window), so disable paging. */
1851 lines_per_page
= UINT_MAX
;
1854 /* FIXME: Get rid of this junk. */
1855 #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
1856 SIGWINCH_HANDLER (SIGWINCH
);
1859 /* If the output is not a terminal, don't paginate it. */
1860 if (!ui_file_isatty (gdb_stdout
))
1861 lines_per_page
= UINT_MAX
;
1869 /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */
1872 set_screen_size (void)
1874 int rows
= lines_per_page
;
1875 int cols
= chars_per_line
;
1883 /* Update Readline's idea of the terminal size. */
1884 rl_set_screen_size (rows
, cols
);
1887 /* Reinitialize WRAP_BUFFER according to the current value of
1893 if (chars_per_line
== 0)
1898 wrap_buffer
= (char *) xmalloc (chars_per_line
+ 2);
1899 wrap_buffer
[0] = '\0';
1902 wrap_buffer
= (char *) xrealloc (wrap_buffer
, chars_per_line
+ 2);
1903 wrap_pointer
= wrap_buffer
; /* Start it at the beginning. */
1907 set_width_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1914 set_height_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1919 /* Wait, so the user can read what's on the screen. Prompt the user
1920 to continue by pressing RETURN. */
1923 prompt_for_continue (void)
1926 char cont_prompt
[120];
1928 if (annotation_level
> 1)
1929 printf_unfiltered (("\n\032\032pre-prompt-for-continue\n"));
1931 strcpy (cont_prompt
,
1932 "---Type <return> to continue, or q <return> to quit---");
1933 if (annotation_level
> 1)
1934 strcat (cont_prompt
, "\n\032\032prompt-for-continue\n");
1936 /* We must do this *before* we call gdb_readline, else it will eventually
1937 call us -- thinking that we're trying to print beyond the end of the
1939 reinitialize_more_filter ();
1942 /* On a real operating system, the user can quit with SIGINT.
1945 'q' is provided on all systems so users don't have to change habits
1946 from system to system, and because telling them what to do in
1947 the prompt is more user-friendly than expecting them to think of
1949 /* Call readline, not gdb_readline, because GO32 readline handles control-C
1950 whereas control-C to gdb_readline will cause the user to get dumped
1952 ignore
= gdb_readline_wrapper (cont_prompt
);
1954 if (annotation_level
> 1)
1955 printf_unfiltered (("\n\032\032post-prompt-for-continue\n"));
1960 while (*p
== ' ' || *p
== '\t')
1963 async_request_quit (0);
1968 /* Now we have to do this again, so that GDB will know that it doesn't
1969 need to save the ---Type <return>--- line at the top of the screen. */
1970 reinitialize_more_filter ();
1972 dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */
1975 /* Reinitialize filter; ie. tell it to reset to original values. */
1978 reinitialize_more_filter (void)
1984 /* Indicate that if the next sequence of characters overflows the line,
1985 a newline should be inserted here rather than when it hits the end.
1986 If INDENT is non-null, it is a string to be printed to indent the
1987 wrapped part on the next line. INDENT must remain accessible until
1988 the next call to wrap_here() or until a newline is printed through
1991 If the line is already overfull, we immediately print a newline and
1992 the indentation, and disable further wrapping.
1994 If we don't know the width of lines, but we know the page height,
1995 we must not wrap words, but should still keep track of newlines
1996 that were explicitly printed.
1998 INDENT should not contain tabs, as that will mess up the char count
1999 on the next line. FIXME.
2001 This routine is guaranteed to force out any output which has been
2002 squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be
2003 used to force out output from the wrap_buffer. */
2006 wrap_here (char *indent
)
2008 /* This should have been allocated, but be paranoid anyway. */
2010 internal_error (__FILE__
, __LINE__
, _("failed internal consistency check"));
2014 *wrap_pointer
= '\0';
2015 fputs_unfiltered (wrap_buffer
, gdb_stdout
);
2017 wrap_pointer
= wrap_buffer
;
2018 wrap_buffer
[0] = '\0';
2019 if (chars_per_line
== UINT_MAX
) /* No line overflow checking */
2023 else if (chars_printed
>= chars_per_line
)
2025 puts_filtered ("\n");
2027 puts_filtered (indent
);
2032 wrap_column
= chars_printed
;
2036 wrap_indent
= indent
;
2040 /* Print input string to gdb_stdout, filtered, with wrap,
2041 arranging strings in columns of n chars. String can be
2042 right or left justified in the column. Never prints
2043 trailing spaces. String should never be longer than
2044 width. FIXME: this could be useful for the EXAMINE
2045 command, which currently doesn't tabulate very well */
2048 puts_filtered_tabular (char *string
, int width
, int right
)
2054 gdb_assert (chars_per_line
> 0);
2055 if (chars_per_line
== UINT_MAX
)
2057 fputs_filtered (string
, gdb_stdout
);
2058 fputs_filtered ("\n", gdb_stdout
);
2062 if (((chars_printed
- 1) / width
+ 2) * width
>= chars_per_line
)
2063 fputs_filtered ("\n", gdb_stdout
);
2065 if (width
>= chars_per_line
)
2066 width
= chars_per_line
- 1;
2068 stringlen
= strlen (string
);
2070 if (chars_printed
> 0)
2071 spaces
= width
- (chars_printed
- 1) % width
- 1;
2073 spaces
+= width
- stringlen
;
2075 spacebuf
= alloca (spaces
+ 1);
2076 spacebuf
[spaces
] = '\0';
2078 spacebuf
[spaces
] = ' ';
2080 fputs_filtered (spacebuf
, gdb_stdout
);
2081 fputs_filtered (string
, gdb_stdout
);
2085 /* Ensure that whatever gets printed next, using the filtered output
2086 commands, starts at the beginning of the line. I.E. if there is
2087 any pending output for the current line, flush it and start a new
2088 line. Otherwise do nothing. */
2093 if (chars_printed
> 0)
2095 puts_filtered ("\n");
2100 /* Like fputs but if FILTER is true, pause after every screenful.
2102 Regardless of FILTER can wrap at points other than the final
2103 character of a line.
2105 Unlike fputs, fputs_maybe_filtered does not return a value.
2106 It is OK for LINEBUFFER to be NULL, in which case just don't print
2109 Note that a longjmp to top level may occur in this routine (only if
2110 FILTER is true) (since prompt_for_continue may do so) so this
2111 routine should not be called when cleanups are not in place. */
2114 fputs_maybe_filtered (const char *linebuffer
, struct ui_file
*stream
,
2117 const char *lineptr
;
2119 if (linebuffer
== 0)
2122 /* Don't do any filtering if it is disabled. */
2123 if ((stream
!= gdb_stdout
) || !pagination_enabled
2124 || (lines_per_page
== UINT_MAX
&& chars_per_line
== UINT_MAX
))
2126 fputs_unfiltered (linebuffer
, stream
);
2130 /* Go through and output each character. Show line extension
2131 when this is necessary; prompt user for new page when this is
2134 lineptr
= linebuffer
;
2137 /* Possible new page. */
2138 if (filter
&& (lines_printed
>= lines_per_page
- 1))
2139 prompt_for_continue ();
2141 while (*lineptr
&& *lineptr
!= '\n')
2143 /* Print a single line. */
2144 if (*lineptr
== '\t')
2147 *wrap_pointer
++ = '\t';
2149 fputc_unfiltered ('\t', stream
);
2150 /* Shifting right by 3 produces the number of tab stops
2151 we have already passed, and then adding one and
2152 shifting left 3 advances to the next tab stop. */
2153 chars_printed
= ((chars_printed
>> 3) + 1) << 3;
2159 *wrap_pointer
++ = *lineptr
;
2161 fputc_unfiltered (*lineptr
, stream
);
2166 if (chars_printed
>= chars_per_line
)
2168 unsigned int save_chars
= chars_printed
;
2172 /* If we aren't actually wrapping, don't output newline --
2173 if chars_per_line is right, we probably just overflowed
2174 anyway; if it's wrong, let us keep going. */
2176 fputc_unfiltered ('\n', stream
);
2178 /* Possible new page. */
2179 if (lines_printed
>= lines_per_page
- 1)
2180 prompt_for_continue ();
2182 /* Now output indentation and wrapped string */
2185 fputs_unfiltered (wrap_indent
, stream
);
2186 *wrap_pointer
= '\0'; /* Null-terminate saved stuff */
2187 fputs_unfiltered (wrap_buffer
, stream
); /* and eject it */
2188 /* FIXME, this strlen is what prevents wrap_indent from
2189 containing tabs. However, if we recurse to print it
2190 and count its chars, we risk trouble if wrap_indent is
2191 longer than (the user settable) chars_per_line.
2192 Note also that this can set chars_printed > chars_per_line
2193 if we are printing a long string. */
2194 chars_printed
= strlen (wrap_indent
)
2195 + (save_chars
- wrap_column
);
2196 wrap_pointer
= wrap_buffer
; /* Reset buffer */
2197 wrap_buffer
[0] = '\0';
2198 wrap_column
= 0; /* And disable fancy wrap */
2203 if (*lineptr
== '\n')
2206 wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */
2208 fputc_unfiltered ('\n', stream
);
2215 fputs_filtered (const char *linebuffer
, struct ui_file
*stream
)
2217 fputs_maybe_filtered (linebuffer
, stream
, 1);
2221 putchar_unfiltered (int c
)
2224 ui_file_write (gdb_stdout
, &buf
, 1);
2228 /* Write character C to gdb_stdout using GDB's paging mechanism and return C.
2229 May return nonlocally. */
2232 putchar_filtered (int c
)
2234 return fputc_filtered (c
, gdb_stdout
);
2238 fputc_unfiltered (int c
, struct ui_file
*stream
)
2241 ui_file_write (stream
, &buf
, 1);
2246 fputc_filtered (int c
, struct ui_file
*stream
)
2252 fputs_filtered (buf
, stream
);
2256 /* puts_debug is like fputs_unfiltered, except it prints special
2257 characters in printable fashion. */
2260 puts_debug (char *prefix
, char *string
, char *suffix
)
2264 /* Print prefix and suffix after each line. */
2265 static int new_line
= 1;
2266 static int return_p
= 0;
2267 static char *prev_prefix
= "";
2268 static char *prev_suffix
= "";
2270 if (*string
== '\n')
2273 /* If the prefix is changing, print the previous suffix, a new line,
2274 and the new prefix. */
2275 if ((return_p
|| (strcmp (prev_prefix
, prefix
) != 0)) && !new_line
)
2277 fputs_unfiltered (prev_suffix
, gdb_stdlog
);
2278 fputs_unfiltered ("\n", gdb_stdlog
);
2279 fputs_unfiltered (prefix
, gdb_stdlog
);
2282 /* Print prefix if we printed a newline during the previous call. */
2286 fputs_unfiltered (prefix
, gdb_stdlog
);
2289 prev_prefix
= prefix
;
2290 prev_suffix
= suffix
;
2292 /* Output characters in a printable format. */
2293 while ((ch
= *string
++) != '\0')
2299 fputc_unfiltered (ch
, gdb_stdlog
);
2302 fprintf_unfiltered (gdb_stdlog
, "\\x%02x", ch
& 0xff);
2306 fputs_unfiltered ("\\\\", gdb_stdlog
);
2309 fputs_unfiltered ("\\b", gdb_stdlog
);
2312 fputs_unfiltered ("\\f", gdb_stdlog
);
2316 fputs_unfiltered ("\\n", gdb_stdlog
);
2319 fputs_unfiltered ("\\r", gdb_stdlog
);
2322 fputs_unfiltered ("\\t", gdb_stdlog
);
2325 fputs_unfiltered ("\\v", gdb_stdlog
);
2329 return_p
= ch
== '\r';
2332 /* Print suffix if we printed a newline. */
2335 fputs_unfiltered (suffix
, gdb_stdlog
);
2336 fputs_unfiltered ("\n", gdb_stdlog
);
2341 /* Print a variable number of ARGS using format FORMAT. If this
2342 information is going to put the amount written (since the last call
2343 to REINITIALIZE_MORE_FILTER or the last page break) over the page size,
2344 call prompt_for_continue to get the users permision to continue.
2346 Unlike fprintf, this function does not return a value.
2348 We implement three variants, vfprintf (takes a vararg list and stream),
2349 fprintf (takes a stream to write on), and printf (the usual).
2351 Note also that a longjmp to top level may occur in this routine
2352 (since prompt_for_continue may do so) so this routine should not be
2353 called when cleanups are not in place. */
2356 vfprintf_maybe_filtered (struct ui_file
*stream
, const char *format
,
2357 va_list args
, int filter
)
2360 struct cleanup
*old_cleanups
;
2362 linebuffer
= xstrvprintf (format
, args
);
2363 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2364 fputs_maybe_filtered (linebuffer
, stream
, filter
);
2365 do_cleanups (old_cleanups
);
2370 vfprintf_filtered (struct ui_file
*stream
, const char *format
, va_list args
)
2372 vfprintf_maybe_filtered (stream
, format
, args
, 1);
2376 vfprintf_unfiltered (struct ui_file
*stream
, const char *format
, va_list args
)
2379 struct cleanup
*old_cleanups
;
2381 linebuffer
= xstrvprintf (format
, args
);
2382 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2383 if (debug_timestamp
&& stream
== gdb_stdlog
)
2389 gettimeofday (&tm
, NULL
);
2391 len
= strlen (linebuffer
);
2392 need_nl
= (len
> 0 && linebuffer
[len
- 1] != '\n');
2394 timestamp
= xstrprintf ("%ld:%ld %s%s",
2395 (long) tm
.tv_sec
, (long) tm
.tv_usec
,
2397 need_nl
? "\n": "");
2398 make_cleanup (xfree
, timestamp
);
2399 fputs_unfiltered (timestamp
, stream
);
2402 fputs_unfiltered (linebuffer
, stream
);
2403 do_cleanups (old_cleanups
);
2407 vprintf_filtered (const char *format
, va_list args
)
2409 vfprintf_maybe_filtered (gdb_stdout
, format
, args
, 1);
2413 vprintf_unfiltered (const char *format
, va_list args
)
2415 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2419 fprintf_filtered (struct ui_file
*stream
, const char *format
, ...)
2422 va_start (args
, format
);
2423 vfprintf_filtered (stream
, format
, args
);
2428 fprintf_unfiltered (struct ui_file
*stream
, const char *format
, ...)
2431 va_start (args
, format
);
2432 vfprintf_unfiltered (stream
, format
, args
);
2436 /* Like fprintf_filtered, but prints its result indented.
2437 Called as fprintfi_filtered (spaces, stream, format, ...); */
2440 fprintfi_filtered (int spaces
, struct ui_file
*stream
, const char *format
,
2444 va_start (args
, format
);
2445 print_spaces_filtered (spaces
, stream
);
2447 vfprintf_filtered (stream
, format
, args
);
2453 printf_filtered (const char *format
, ...)
2456 va_start (args
, format
);
2457 vfprintf_filtered (gdb_stdout
, format
, args
);
2463 printf_unfiltered (const char *format
, ...)
2466 va_start (args
, format
);
2467 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2471 /* Like printf_filtered, but prints it's result indented.
2472 Called as printfi_filtered (spaces, format, ...); */
2475 printfi_filtered (int spaces
, const char *format
, ...)
2478 va_start (args
, format
);
2479 print_spaces_filtered (spaces
, gdb_stdout
);
2480 vfprintf_filtered (gdb_stdout
, format
, args
);
2484 /* Easy -- but watch out!
2486 This routine is *not* a replacement for puts()! puts() appends a newline.
2487 This one doesn't, and had better not! */
2490 puts_filtered (const char *string
)
2492 fputs_filtered (string
, gdb_stdout
);
2496 puts_unfiltered (const char *string
)
2498 fputs_unfiltered (string
, gdb_stdout
);
2501 /* Return a pointer to N spaces and a null. The pointer is good
2502 until the next call to here. */
2507 static char *spaces
= 0;
2508 static int max_spaces
= -1;
2514 spaces
= (char *) xmalloc (n
+ 1);
2515 for (t
= spaces
+ n
; t
!= spaces
;)
2521 return spaces
+ max_spaces
- n
;
2524 /* Print N spaces. */
2526 print_spaces_filtered (int n
, struct ui_file
*stream
)
2528 fputs_filtered (n_spaces (n
), stream
);
2531 /* C++/ObjC demangler stuff. */
2533 /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language
2534 LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
2535 If the name is not mangled, or the language for the name is unknown, or
2536 demangling is off, the name is printed in its "raw" form. */
2539 fprintf_symbol_filtered (struct ui_file
*stream
, char *name
,
2540 enum language lang
, int arg_mode
)
2546 /* If user wants to see raw output, no problem. */
2549 fputs_filtered (name
, stream
);
2553 demangled
= language_demangle (language_def (lang
), name
, arg_mode
);
2554 fputs_filtered (demangled
? demangled
: name
, stream
);
2555 if (demangled
!= NULL
)
2563 /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any
2564 differences in whitespace. Returns 0 if they match, non-zero if they
2565 don't (slightly different than strcmp()'s range of return values).
2567 As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO".
2568 This "feature" is useful when searching for matching C++ function names
2569 (such as if the user types 'break FOO', where FOO is a mangled C++
2573 strcmp_iw (const char *string1
, const char *string2
)
2575 while ((*string1
!= '\0') && (*string2
!= '\0'))
2577 while (isspace (*string1
))
2581 while (isspace (*string2
))
2585 if (*string1
!= *string2
)
2589 if (*string1
!= '\0')
2595 return (*string1
!= '\0' && *string1
!= '(') || (*string2
!= '\0');
2598 /* This is like strcmp except that it ignores whitespace and treats
2599 '(' as the first non-NULL character in terms of ordering. Like
2600 strcmp (and unlike strcmp_iw), it returns negative if STRING1 <
2601 STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2
2602 according to that ordering.
2604 If a list is sorted according to this function and if you want to
2605 find names in the list that match some fixed NAME according to
2606 strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
2607 where this function would put NAME.
2609 Here are some examples of why using strcmp to sort is a bad idea:
2613 Say your partial symtab contains: "foo<char *>", "goo". Then, if
2614 we try to do a search for "foo<char*>", strcmp will locate this
2615 after "foo<char *>" and before "goo". Then lookup_partial_symbol
2616 will start looking at strings beginning with "goo", and will never
2617 see the correct match of "foo<char *>".
2619 Parenthesis example:
2621 In practice, this is less like to be an issue, but I'll give it a
2622 shot. Let's assume that '$' is a legitimate character to occur in
2623 symbols. (Which may well even be the case on some systems.) Then
2624 say that the partial symbol table contains "foo$" and "foo(int)".
2625 strcmp will put them in this order, since '$' < '('. Now, if the
2626 user searches for "foo", then strcmp will sort "foo" before "foo$".
2627 Then lookup_partial_symbol will notice that strcmp_iw("foo$",
2628 "foo") is false, so it won't proceed to the actual match of
2629 "foo(int)" with "foo". */
2632 strcmp_iw_ordered (const char *string1
, const char *string2
)
2634 while ((*string1
!= '\0') && (*string2
!= '\0'))
2636 while (isspace (*string1
))
2640 while (isspace (*string2
))
2644 if (*string1
!= *string2
)
2648 if (*string1
!= '\0')
2657 /* Characters are non-equal unless they're both '\0'; we want to
2658 make sure we get the comparison right according to our
2659 comparison in the cases where one of them is '\0' or '('. */
2661 if (*string2
== '\0')
2666 if (*string2
== '\0')
2671 if (*string2
== '(')
2674 return *string1
- *string2
;
2678 /* A simple comparison function with opposite semantics to strcmp. */
2681 streq (const char *lhs
, const char *rhs
)
2683 return !strcmp (lhs
, rhs
);
2689 ** Answer whether string_to_compare is a full or partial match to
2690 ** template_string. The partial match must be in sequence starting
2694 subset_compare (char *string_to_compare
, char *template_string
)
2697 if (template_string
!= (char *) NULL
&& string_to_compare
!= (char *) NULL
2698 && strlen (string_to_compare
) <= strlen (template_string
))
2701 (template_string
, string_to_compare
, strlen (string_to_compare
)) == 0);
2708 pagination_on_command (char *arg
, int from_tty
)
2710 pagination_enabled
= 1;
2714 pagination_off_command (char *arg
, int from_tty
)
2716 pagination_enabled
= 0;
2720 show_debug_timestamp (struct ui_file
*file
, int from_tty
,
2721 struct cmd_list_element
*c
, const char *value
)
2723 fprintf_filtered (file
, _("Timestamping debugging messages is %s.\n"), value
);
2728 initialize_utils (void)
2730 struct cmd_list_element
*c
;
2732 add_setshow_uinteger_cmd ("width", class_support
, &chars_per_line
, _("\
2733 Set number of characters gdb thinks are in a line."), _("\
2734 Show number of characters gdb thinks are in a line."), NULL
,
2736 show_chars_per_line
,
2737 &setlist
, &showlist
);
2739 add_setshow_uinteger_cmd ("height", class_support
, &lines_per_page
, _("\
2740 Set number of lines gdb thinks are in a page."), _("\
2741 Show number of lines gdb thinks are in a page."), NULL
,
2743 show_lines_per_page
,
2744 &setlist
, &showlist
);
2748 add_setshow_boolean_cmd ("demangle", class_support
, &demangle
, _("\
2749 Set demangling of encoded C++/ObjC names when displaying symbols."), _("\
2750 Show demangling of encoded C++/ObjC names when displaying symbols."), NULL
,
2753 &setprintlist
, &showprintlist
);
2755 add_setshow_boolean_cmd ("pagination", class_support
,
2756 &pagination_enabled
, _("\
2757 Set state of pagination."), _("\
2758 Show state of pagination."), NULL
,
2760 show_pagination_enabled
,
2761 &setlist
, &showlist
);
2765 add_com ("am", class_support
, pagination_on_command
,
2766 _("Enable pagination"));
2767 add_com ("sm", class_support
, pagination_off_command
,
2768 _("Disable pagination"));
2771 add_setshow_boolean_cmd ("sevenbit-strings", class_support
,
2772 &sevenbit_strings
, _("\
2773 Set printing of 8-bit characters in strings as \\nnn."), _("\
2774 Show printing of 8-bit characters in strings as \\nnn."), NULL
,
2776 show_sevenbit_strings
,
2777 &setprintlist
, &showprintlist
);
2779 add_setshow_boolean_cmd ("asm-demangle", class_support
, &asm_demangle
, _("\
2780 Set demangling of C++/ObjC names in disassembly listings."), _("\
2781 Show demangling of C++/ObjC names in disassembly listings."), NULL
,
2784 &setprintlist
, &showprintlist
);
2786 add_setshow_boolean_cmd ("timestamp", class_maintenance
,
2787 &debug_timestamp
, _("\
2788 Set timestamping of debugging messages."), _("\
2789 Show timestamping of debugging messages."), _("\
2790 When set, debugging messages will be marked with seconds and microseconds."),
2792 show_debug_timestamp
,
2793 &setdebuglist
, &showdebuglist
);
2796 /* Machine specific function to handle SIGWINCH signal. */
2798 #ifdef SIGWINCH_HANDLER_BODY
2799 SIGWINCH_HANDLER_BODY
2801 /* print routines to handle variable size regs, etc. */
2802 /* temporary storage using circular buffer */
2808 static char buf
[NUMCELLS
][CELLSIZE
];
2809 static int cell
= 0;
2810 if (++cell
>= NUMCELLS
)
2818 return (gdbarch_addr_bit (current_gdbarch
) / 8 * 2);
2822 paddr (CORE_ADDR addr
)
2824 return phex (addr
, gdbarch_addr_bit (current_gdbarch
) / 8);
2828 paddr_nz (CORE_ADDR addr
)
2830 return phex_nz (addr
, gdbarch_addr_bit (current_gdbarch
) / 8);
2834 paddress (CORE_ADDR addr
)
2836 /* Truncate address to the size of a target address, avoiding shifts
2837 larger or equal than the width of a CORE_ADDR. The local
2838 variable ADDR_BIT stops the compiler reporting a shift overflow
2839 when it won't occur. */
2840 /* NOTE: This assumes that the significant address information is
2841 kept in the least significant bits of ADDR - the upper bits were
2842 either zero or sign extended. Should gdbarch_address_to_pointer or
2843 some ADDRESS_TO_PRINTABLE() be used to do the conversion? */
2845 int addr_bit
= gdbarch_addr_bit (current_gdbarch
);
2847 if (addr_bit
< (sizeof (CORE_ADDR
) * HOST_CHAR_BIT
))
2848 addr
&= ((CORE_ADDR
) 1 << addr_bit
) - 1;
2849 return hex_string (addr
);
2853 decimal2str (char *sign
, ULONGEST addr
, int width
)
2855 /* Steal code from valprint.c:print_decimal(). Should this worry
2856 about the real size of addr as the above does? */
2857 unsigned long temp
[3];
2858 char *str
= get_cell ();
2863 temp
[i
] = addr
% (1000 * 1000 * 1000);
2864 addr
/= (1000 * 1000 * 1000);
2868 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2877 xsnprintf (str
, CELLSIZE
, "%s%0*lu", sign
, width
, temp
[0]);
2880 xsnprintf (str
, CELLSIZE
, "%s%0*lu%09lu", sign
, width
,
2884 xsnprintf (str
, CELLSIZE
, "%s%0*lu%09lu%09lu", sign
, width
,
2885 temp
[2], temp
[1], temp
[0]);
2888 internal_error (__FILE__
, __LINE__
,
2889 _("failed internal consistency check"));
2896 octal2str (ULONGEST addr
, int width
)
2898 unsigned long temp
[3];
2899 char *str
= get_cell ();
2904 temp
[i
] = addr
% (0100000 * 0100000);
2905 addr
/= (0100000 * 0100000);
2909 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2919 xsnprintf (str
, CELLSIZE
, "%*o", width
, 0);
2921 xsnprintf (str
, CELLSIZE
, "0%0*lo", width
, temp
[0]);
2924 xsnprintf (str
, CELLSIZE
, "0%0*lo%010lo", width
, temp
[1], temp
[0]);
2927 xsnprintf (str
, CELLSIZE
, "0%0*lo%010lo%010lo", width
,
2928 temp
[2], temp
[1], temp
[0]);
2931 internal_error (__FILE__
, __LINE__
,
2932 _("failed internal consistency check"));
2939 pulongest (ULONGEST u
)
2941 return decimal2str ("", u
, 0);
2945 plongest (LONGEST l
)
2948 return decimal2str ("-", -l
, 0);
2950 return decimal2str ("", l
, 0);
2953 /* Eliminate warning from compiler on 32-bit systems. */
2954 static int thirty_two
= 32;
2957 phex (ULONGEST l
, int sizeof_l
)
2965 xsnprintf (str
, CELLSIZE
, "%08lx%08lx",
2966 (unsigned long) (l
>> thirty_two
),
2967 (unsigned long) (l
& 0xffffffff));
2971 xsnprintf (str
, CELLSIZE
, "%08lx", (unsigned long) l
);
2975 xsnprintf (str
, CELLSIZE
, "%04x", (unsigned short) (l
& 0xffff));
2978 str
= phex (l
, sizeof (l
));
2986 phex_nz (ULONGEST l
, int sizeof_l
)
2994 unsigned long high
= (unsigned long) (l
>> thirty_two
);
2997 xsnprintf (str
, CELLSIZE
, "%lx",
2998 (unsigned long) (l
& 0xffffffff));
3000 xsnprintf (str
, CELLSIZE
, "%lx%08lx", high
,
3001 (unsigned long) (l
& 0xffffffff));
3006 xsnprintf (str
, CELLSIZE
, "%lx", (unsigned long) l
);
3010 xsnprintf (str
, CELLSIZE
, "%x", (unsigned short) (l
& 0xffff));
3013 str
= phex_nz (l
, sizeof (l
));
3020 /* Converts a LONGEST to a C-format hexadecimal literal and stores it
3021 in a static string. Returns a pointer to this string. */
3023 hex_string (LONGEST num
)
3025 char *result
= get_cell ();
3026 xsnprintf (result
, CELLSIZE
, "0x%s", phex_nz (num
, sizeof (num
)));
3030 /* Converts a LONGEST number to a C-format hexadecimal literal and
3031 stores it in a static string. Returns a pointer to this string
3032 that is valid until the next call. The number is padded on the
3033 left with 0s to at least WIDTH characters. */
3035 hex_string_custom (LONGEST num
, int width
)
3037 char *result
= get_cell ();
3038 char *result_end
= result
+ CELLSIZE
- 1;
3039 const char *hex
= phex_nz (num
, sizeof (num
));
3040 int hex_len
= strlen (hex
);
3042 if (hex_len
> width
)
3044 if (width
+ 2 >= CELLSIZE
)
3045 internal_error (__FILE__
, __LINE__
,
3046 _("hex_string_custom: insufficient space to store result"));
3048 strcpy (result_end
- width
- 2, "0x");
3049 memset (result_end
- width
, '0', width
);
3050 strcpy (result_end
- hex_len
, hex
);
3051 return result_end
- width
- 2;
3054 /* Convert VAL to a numeral in the given radix. For
3055 * radix 10, IS_SIGNED may be true, indicating a signed quantity;
3056 * otherwise VAL is interpreted as unsigned. If WIDTH is supplied,
3057 * it is the minimum width (0-padded if needed). USE_C_FORMAT means
3058 * to use C format in all cases. If it is false, then 'x'
3059 * and 'o' formats do not include a prefix (0x or leading 0). */
3062 int_string (LONGEST val
, int radix
, int is_signed
, int width
,
3071 result
= hex_string (val
);
3073 result
= hex_string_custom (val
, width
);
3080 if (is_signed
&& val
< 0)
3081 return decimal2str ("-", -val
, width
);
3083 return decimal2str ("", val
, width
);
3087 char *result
= octal2str (val
, width
);
3088 if (use_c_format
|| val
== 0)
3094 internal_error (__FILE__
, __LINE__
,
3095 _("failed internal consistency check"));
3099 /* Convert a CORE_ADDR into a string. */
3101 core_addr_to_string (const CORE_ADDR addr
)
3103 char *str
= get_cell ();
3105 strcat (str
, phex (addr
, sizeof (addr
)));
3110 core_addr_to_string_nz (const CORE_ADDR addr
)
3112 char *str
= get_cell ();
3114 strcat (str
, phex_nz (addr
, sizeof (addr
)));
3118 /* Convert a string back into a CORE_ADDR. */
3120 string_to_core_addr (const char *my_string
)
3122 int addr_bit
= gdbarch_addr_bit (current_gdbarch
);
3125 if (my_string
[0] == '0' && tolower (my_string
[1]) == 'x')
3127 /* Assume that it is in hex. */
3129 for (i
= 2; my_string
[i
] != '\0'; i
++)
3131 if (isdigit (my_string
[i
]))
3132 addr
= (my_string
[i
] - '0') + (addr
* 16);
3133 else if (isxdigit (my_string
[i
]))
3134 addr
= (tolower (my_string
[i
]) - 'a' + 0xa) + (addr
* 16);
3136 error (_("invalid hex \"%s\""), my_string
);
3139 /* Not very modular, but if the executable format expects
3140 addresses to be sign-extended, then do so if the address was
3141 specified with only 32 significant bits. Really this should
3142 be determined by the target architecture, not by the object
3144 if (i
- 2 == addr_bit
/ 4
3146 && bfd_get_sign_extend_vma (exec_bfd
))
3147 addr
= (addr
^ ((CORE_ADDR
) 1 << (addr_bit
- 1)))
3148 - ((CORE_ADDR
) 1 << (addr_bit
- 1));
3152 /* Assume that it is in decimal. */
3154 for (i
= 0; my_string
[i
] != '\0'; i
++)
3156 if (isdigit (my_string
[i
]))
3157 addr
= (my_string
[i
] - '0') + (addr
* 10);
3159 error (_("invalid decimal \"%s\""), my_string
);
3167 host_address_to_string (const void *addr
)
3169 char *str
= get_cell ();
3171 xsnprintf (str
, CELLSIZE
, "0x%s", phex_nz ((uintptr_t) addr
, sizeof (addr
)));
3176 gdb_realpath (const char *filename
)
3178 /* Method 1: The system has a compile time upper bound on a filename
3179 path. Use that and realpath() to canonicalize the name. This is
3180 the most common case. Note that, if there isn't a compile time
3181 upper bound, you want to avoid realpath() at all costs. */
3182 #if defined(HAVE_REALPATH)
3184 # if defined (PATH_MAX)
3186 # define USE_REALPATH
3187 # elif defined (MAXPATHLEN)
3188 char buf
[MAXPATHLEN
];
3189 # define USE_REALPATH
3191 # if defined (USE_REALPATH)
3192 const char *rp
= realpath (filename
, buf
);
3195 return xstrdup (rp
);
3198 #endif /* HAVE_REALPATH */
3200 /* Method 2: The host system (i.e., GNU) has the function
3201 canonicalize_file_name() which malloc's a chunk of memory and
3202 returns that, use that. */
3203 #if defined(HAVE_CANONICALIZE_FILE_NAME)
3205 char *rp
= canonicalize_file_name (filename
);
3207 return xstrdup (filename
);
3213 /* FIXME: cagney/2002-11-13:
3215 Method 2a: Use realpath() with a NULL buffer. Some systems, due
3216 to the problems described in in method 3, have modified their
3217 realpath() implementation so that it will allocate a buffer when
3218 NULL is passed in. Before this can be used, though, some sort of
3219 configure time test would need to be added. Otherwize the code
3220 will likely core dump. */
3222 /* Method 3: Now we're getting desperate! The system doesn't have a
3223 compile time buffer size and no alternative function. Query the
3224 OS, using pathconf(), for the buffer limit. Care is needed
3225 though, some systems do not limit PATH_MAX (return -1 for
3226 pathconf()) making it impossible to pass a correctly sized buffer
3227 to realpath() (it could always overflow). On those systems, we
3229 #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
3231 /* Find out the max path size. */
3232 long path_max
= pathconf ("/", _PC_PATH_MAX
);
3235 /* PATH_MAX is bounded. */
3236 char *buf
= alloca (path_max
);
3237 char *rp
= realpath (filename
, buf
);
3238 return xstrdup (rp
? rp
: filename
);
3243 /* This system is a lost cause, just dup the buffer. */
3244 return xstrdup (filename
);
3247 /* Return a copy of FILENAME, with its directory prefix canonicalized
3251 xfullpath (const char *filename
)
3253 const char *base_name
= lbasename (filename
);
3258 /* Extract the basename of filename, and return immediately
3259 a copy of filename if it does not contain any directory prefix. */
3260 if (base_name
== filename
)
3261 return xstrdup (filename
);
3263 dir_name
= alloca ((size_t) (base_name
- filename
+ 2));
3264 /* Allocate enough space to store the dir_name + plus one extra
3265 character sometimes needed under Windows (see below), and
3266 then the closing \000 character */
3267 strncpy (dir_name
, filename
, base_name
- filename
);
3268 dir_name
[base_name
- filename
] = '\000';
3270 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
3271 /* We need to be careful when filename is of the form 'd:foo', which
3272 is equivalent of d:./foo, which is totally different from d:/foo. */
3273 if (strlen (dir_name
) == 2 && isalpha (dir_name
[0]) && dir_name
[1] == ':')
3276 dir_name
[3] = '\000';
3280 /* Canonicalize the directory prefix, and build the resulting
3281 filename. If the dirname realpath already contains an ending
3282 directory separator, avoid doubling it. */
3283 real_path
= gdb_realpath (dir_name
);
3284 if (IS_DIR_SEPARATOR (real_path
[strlen (real_path
) - 1]))
3285 result
= concat (real_path
, base_name
, (char *)NULL
);
3287 result
= concat (real_path
, SLASH_STRING
, base_name
, (char *)NULL
);
3294 /* This is the 32-bit CRC function used by the GNU separate debug
3295 facility. An executable may contain a section named
3296 .gnu_debuglink, which holds the name of a separate executable file
3297 containing its debug info, and a checksum of that file's contents,
3298 computed using this function. */
3300 gnu_debuglink_crc32 (unsigned long crc
, unsigned char *buf
, size_t len
)
3302 static const unsigned long crc32_table
[256] = {
3303 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
3304 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
3305 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
3306 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
3307 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
3308 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
3309 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
3310 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
3311 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
3312 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
3313 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
3314 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
3315 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
3316 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
3317 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
3318 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
3319 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
3320 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
3321 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
3322 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
3323 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
3324 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
3325 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
3326 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
3327 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
3328 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
3329 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
3330 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
3331 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
3332 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
3333 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
3334 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
3335 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
3336 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
3337 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
3338 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
3339 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
3340 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
3341 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
3342 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
3343 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
3344 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
3345 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
3346 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
3347 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
3348 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
3349 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
3350 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
3351 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
3352 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
3353 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
3358 crc
= ~crc
& 0xffffffff;
3359 for (end
= buf
+ len
; buf
< end
; ++buf
)
3360 crc
= crc32_table
[(crc
^ *buf
) & 0xff] ^ (crc
>> 8);
3361 return ~crc
& 0xffffffff;;
3365 align_up (ULONGEST v
, int n
)
3367 /* Check that N is really a power of two. */
3368 gdb_assert (n
&& (n
& (n
-1)) == 0);
3369 return (v
+ n
- 1) & -n
;
3373 align_down (ULONGEST v
, int n
)
3375 /* Check that N is really a power of two. */
3376 gdb_assert (n
&& (n
& (n
-1)) == 0);
3380 /* Allocation function for the libiberty hash table which uses an
3381 obstack. The obstack is passed as DATA. */
3384 hashtab_obstack_allocate (void *data
, size_t size
, size_t count
)
3386 unsigned int total
= size
* count
;
3387 void *ptr
= obstack_alloc ((struct obstack
*) data
, total
);
3388 memset (ptr
, 0, total
);
3392 /* Trivial deallocation function for the libiberty splay tree and hash
3393 table - don't deallocate anything. Rely on later deletion of the
3394 obstack. DATA will be the obstack, although it is not needed
3398 dummy_obstack_deallocate (void *object
, void *data
)
3403 /* The bit offset of the highest byte in a ULONGEST, for overflow
3406 #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT)
3408 /* True (non-zero) iff DIGIT is a valid digit in radix BASE,
3409 where 2 <= BASE <= 36. */
3412 is_digit_in_base (unsigned char digit
, int base
)
3414 if (!isalnum (digit
))
3417 return (isdigit (digit
) && digit
< base
+ '0');
3419 return (isdigit (digit
) || tolower (digit
) < base
- 10 + 'a');
3423 digit_to_int (unsigned char c
)
3428 return tolower (c
) - 'a' + 10;
3431 /* As for strtoul, but for ULONGEST results. */
3434 strtoulst (const char *num
, const char **trailer
, int base
)
3436 unsigned int high_part
;
3441 /* Skip leading whitespace. */
3442 while (isspace (num
[i
]))
3445 /* Handle prefixes. */
3448 else if (num
[i
] == '-')
3454 if (base
== 0 || base
== 16)
3456 if (num
[i
] == '0' && (num
[i
+ 1] == 'x' || num
[i
+ 1] == 'X'))
3464 if (base
== 0 && num
[i
] == '0')
3470 if (base
< 2 || base
> 36)
3476 result
= high_part
= 0;
3477 for (; is_digit_in_base (num
[i
], base
); i
+= 1)
3479 result
= result
* base
+ digit_to_int (num
[i
]);
3480 high_part
= high_part
* base
+ (unsigned int) (result
>> HIGH_BYTE_POSN
);
3481 result
&= ((ULONGEST
) 1 << HIGH_BYTE_POSN
) - 1;
3482 if (high_part
> 0xff)
3485 result
= ~ (ULONGEST
) 0;
3492 if (trailer
!= NULL
)
3495 result
= result
+ ((ULONGEST
) high_part
<< HIGH_BYTE_POSN
);
3502 /* Simple, portable version of dirname that does not modify its
3506 ldirname (const char *filename
)
3508 const char *base
= lbasename (filename
);
3511 while (base
> filename
&& IS_DIR_SEPARATOR (base
[-1]))
3514 if (base
== filename
)
3517 dirname
= xmalloc (base
- filename
+ 2);
3518 memcpy (dirname
, filename
, base
- filename
);
3520 /* On DOS based file systems, convert "d:foo" to "d:.", so that we
3521 create "d:./bar" later instead of the (different) "d:/bar". */
3522 if (base
- filename
== 2 && IS_ABSOLUTE_PATH (base
)
3523 && !IS_DIR_SEPARATOR (filename
[0]))
3524 dirname
[base
++ - filename
] = '.';
3526 dirname
[base
- filename
] = '\0';
3530 /* Call libiberty's buildargv, and return the result.
3531 If buildargv fails due to out-of-memory, call nomem.
3532 Therefore, the returned value is guaranteed to be non-NULL,
3533 unless the parameter itself is NULL. */
3536 gdb_buildargv (const char *s
)
3538 char **argv
= buildargv (s
);
3539 if (s
!= NULL
&& argv
== NULL
)
3544 /* Provide a prototype to silence -Wmissing-prototypes. */
3545 extern initialize_file_ftype _initialize_utils
;
3548 _initialize_utils (void)
3550 add_internal_problem_command (&internal_error_problem
);
3551 add_internal_problem_command (&internal_warning_problem
);