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 /* Print a message reporting an internal error/warning. Ask the user
829 if they want to continue, dump core, or just exit. Return
830 something to indicate a quit. */
832 struct internal_problem
835 /* FIXME: cagney/2002-08-15: There should be ``maint set/show''
836 commands available for controlling these variables. */
837 enum auto_boolean should_quit
;
838 enum auto_boolean should_dump_core
;
841 /* Report a problem, internal to GDB, to the user. Once the problem
842 has been reported, and assuming GDB didn't quit, the caller can
843 either allow execution to resume or throw an error. */
845 static void ATTR_FORMAT (printf
, 4, 0)
846 internal_vproblem (struct internal_problem
*problem
,
847 const char *file
, int line
, const char *fmt
, va_list ap
)
854 /* Don't allow infinite error/warning recursion. */
856 static char msg
[] = "Recursive internal problem.\n";
864 fputs_unfiltered (msg
, gdb_stderr
);
865 abort (); /* NOTE: GDB has only four calls to abort(). */
868 /* Newer GLIBC versions put the warn_unused_result attribute
869 on write, but this is one of those rare cases where
870 ignoring the return value is correct. Casting to (void)
871 does not fix this problem. This is the solution suggested
872 at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */
873 if (write (STDERR_FILENO
, msg
, sizeof (msg
)) != sizeof (msg
))
874 abort (); /* NOTE: GDB has only four calls to abort(). */
879 /* Try to get the message out and at the start of a new line. */
880 target_terminal_ours ();
883 /* Create a string containing the full error/warning message. Need
884 to call query with this full string, as otherwize the reason
885 (error/warning) and question become separated. Format using a
886 style similar to a compiler error message. Include extra detail
887 so that the user knows that they are living on the edge. */
890 msg
= xstrvprintf (fmt
, ap
);
891 reason
= xstrprintf ("\
893 A problem internal to GDB has been detected,\n\
894 further debugging may prove unreliable.", file
, line
, problem
->name
, msg
);
896 make_cleanup (xfree
, reason
);
899 switch (problem
->should_quit
)
901 case AUTO_BOOLEAN_AUTO
:
902 /* Default (yes/batch case) is to quit GDB. When in batch mode
903 this lessens the likelhood of GDB going into an infinate
905 quit_p
= query (_("%s\nQuit this debugging session? "), reason
);
907 case AUTO_BOOLEAN_TRUE
:
910 case AUTO_BOOLEAN_FALSE
:
914 internal_error (__FILE__
, __LINE__
, _("bad switch"));
917 switch (problem
->should_dump_core
)
919 case AUTO_BOOLEAN_AUTO
:
920 /* Default (yes/batch case) is to dump core. This leaves a GDB
921 `dropping' so that it is easier to see that something went
923 dump_core_p
= query (_("%s\nCreate a core file of GDB? "), reason
);
926 case AUTO_BOOLEAN_TRUE
:
929 case AUTO_BOOLEAN_FALSE
:
933 internal_error (__FILE__
, __LINE__
, _("bad switch"));
939 abort (); /* NOTE: GDB has only four calls to abort(). */
947 #ifdef HAVE_WORKING_FORK
949 abort (); /* NOTE: GDB has only four calls to abort(). */
957 static struct internal_problem internal_error_problem
= {
958 "internal-error", AUTO_BOOLEAN_AUTO
, AUTO_BOOLEAN_AUTO
962 internal_verror (const char *file
, int line
, const char *fmt
, va_list ap
)
964 internal_vproblem (&internal_error_problem
, file
, line
, fmt
, ap
);
965 deprecated_throw_reason (RETURN_ERROR
);
969 internal_error (const char *file
, int line
, const char *string
, ...)
972 va_start (ap
, string
);
973 internal_verror (file
, line
, string
, ap
);
977 static struct internal_problem internal_warning_problem
= {
978 "internal-warning", AUTO_BOOLEAN_AUTO
, AUTO_BOOLEAN_AUTO
982 internal_vwarning (const char *file
, int line
, const char *fmt
, va_list ap
)
984 internal_vproblem (&internal_warning_problem
, file
, line
, fmt
, ap
);
988 internal_warning (const char *file
, int line
, const char *string
, ...)
991 va_start (ap
, string
);
992 internal_vwarning (file
, line
, string
, ap
);
996 /* Print the system error message for errno, and also mention STRING
997 as the file name for which the error was encountered.
998 Then return to command level. */
1001 perror_with_name (const char *string
)
1006 err
= safe_strerror (errno
);
1007 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
1008 strcpy (combined
, string
);
1009 strcat (combined
, ": ");
1010 strcat (combined
, err
);
1012 /* I understand setting these is a matter of taste. Still, some people
1013 may clear errno but not know about bfd_error. Doing this here is not
1015 bfd_set_error (bfd_error_no_error
);
1018 error (_("%s."), combined
);
1021 /* Print the system error message for ERRCODE, and also mention STRING
1022 as the file name for which the error was encountered. */
1025 print_sys_errmsg (const char *string
, int errcode
)
1030 err
= safe_strerror (errcode
);
1031 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
1032 strcpy (combined
, string
);
1033 strcat (combined
, ": ");
1034 strcat (combined
, err
);
1036 /* We want anything which was printed on stdout to come out first, before
1038 gdb_flush (gdb_stdout
);
1039 fprintf_unfiltered (gdb_stderr
, "%s.\n", combined
);
1042 /* Control C eventually causes this to be called, at a convenient time. */
1048 /* No steenking SIGINT will ever be coming our way when the
1049 program is resumed. Don't lie. */
1053 /* If there is no terminal switching for this target, then we can't
1054 possibly get screwed by the lack of job control. */
1055 || current_target
.to_terminal_ours
== NULL
)
1058 fatal ("Quit (expect signal SIGINT when the program is resumed)");
1063 /* Called when a memory allocation fails, with the number of bytes of
1064 memory requested in SIZE. */
1071 internal_error (__FILE__
, __LINE__
,
1072 _("virtual memory exhausted: can't allocate %ld bytes."),
1077 internal_error (__FILE__
, __LINE__
, _("virtual memory exhausted."));
1081 /* The xmalloc() (libiberty.h) family of memory management routines.
1083 These are like the ISO-C malloc() family except that they implement
1084 consistent semantics and guard against typical memory management
1087 /* NOTE: These are declared using PTR to ensure consistency with
1088 "libiberty.h". xfree() is GDB local. */
1091 xmalloc (size_t size
)
1095 /* See libiberty/xmalloc.c. This function need's to match that's
1096 semantics. It never returns NULL. */
1100 val
= malloc (size
); /* OK: malloc */
1108 xzalloc (size_t size
)
1110 return xcalloc (1, size
);
1114 xrealloc (PTR ptr
, size_t size
) /* OK: PTR */
1118 /* See libiberty/xmalloc.c. This function need's to match that's
1119 semantics. It never returns NULL. */
1124 val
= realloc (ptr
, size
); /* OK: realloc */
1126 val
= malloc (size
); /* OK: malloc */
1134 xcalloc (size_t number
, size_t size
)
1138 /* See libiberty/xmalloc.c. This function need's to match that's
1139 semantics. It never returns NULL. */
1140 if (number
== 0 || size
== 0)
1146 mem
= calloc (number
, size
); /* OK: xcalloc */
1148 nomem (number
* size
);
1157 free (ptr
); /* OK: free */
1161 /* Like asprintf/vasprintf but get an internal_error if the call
1165 xstrprintf (const char *format
, ...)
1169 va_start (args
, format
);
1170 ret
= xstrvprintf (format
, args
);
1176 xasprintf (char **ret
, const char *format
, ...)
1179 va_start (args
, format
);
1180 (*ret
) = xstrvprintf (format
, args
);
1185 xvasprintf (char **ret
, const char *format
, va_list ap
)
1187 (*ret
) = xstrvprintf (format
, ap
);
1191 xstrvprintf (const char *format
, va_list ap
)
1194 int status
= vasprintf (&ret
, format
, ap
);
1195 /* NULL is returned when there was a memory allocation problem, or
1196 any other error (for instance, a bad format string). A negative
1197 status (the printed length) with a non-NULL buffer should never
1198 happen, but just to be sure. */
1199 if (ret
== NULL
|| status
< 0)
1200 internal_error (__FILE__
, __LINE__
, _("vasprintf call failed"));
1205 xsnprintf (char *str
, size_t size
, const char *format
, ...)
1210 va_start (args
, format
);
1211 ret
= vsnprintf (str
, size
, format
, args
);
1212 gdb_assert (ret
< size
);
1218 /* My replacement for the read system call.
1219 Used like `read' but keeps going if `read' returns too soon. */
1222 myread (int desc
, char *addr
, int len
)
1229 val
= read (desc
, addr
, len
);
1233 return orglen
- len
;
1240 /* Make a copy of the string at PTR with SIZE characters
1241 (and add a null character at the end in the copy).
1242 Uses malloc to get the space. Returns the address of the copy. */
1245 savestring (const char *ptr
, size_t size
)
1247 char *p
= (char *) xmalloc (size
+ 1);
1248 memcpy (p
, ptr
, size
);
1254 print_spaces (int n
, struct ui_file
*file
)
1256 fputs_unfiltered (n_spaces (n
), file
);
1259 /* Print a host address. */
1262 gdb_print_host_address (const void *addr
, struct ui_file
*stream
)
1264 fprintf_filtered (stream
, "%s", host_address_to_string (addr
));
1268 /* This function supports the query, nquery, and yquery functions.
1269 Ask user a y-or-n question and return 0 if answer is no, 1 if
1270 answer is yes, or default the answer to the specified default
1271 (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a
1272 default answer, or '\0' for no default.
1273 CTLSTR is the control string and should end in "? ". It should
1274 not say how to answer, because we do that.
1275 ARGS are the arguments passed along with the CTLSTR argument to
1278 static int ATTR_FORMAT (printf
, 1, 0)
1279 defaulted_query (const char *ctlstr
, const char defchar
, va_list args
)
1285 char def_answer
, not_def_answer
;
1286 char *y_string
, *n_string
, *question
;
1288 /* Set up according to which answer is the default. */
1289 if (defchar
== '\0')
1293 not_def_answer
= 'N';
1297 else if (defchar
== 'y')
1301 not_def_answer
= 'N';
1309 not_def_answer
= 'Y';
1314 /* Automatically answer the default value if the user did not want
1319 /* If input isn't coming from the user directly, just say what
1320 question we're asking, and then answer "yes" automatically. This
1321 way, important error messages don't get lost when talking to GDB
1323 if (! input_from_terminal_p ())
1326 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1328 printf_filtered (_("(%s or %s) [answered %c; input not from terminal]\n"),
1329 y_string
, n_string
, def_answer
);
1330 gdb_flush (gdb_stdout
);
1335 /* Automatically answer the default value if input is not from the user
1336 directly, or if the user did not want prompts. */
1337 if (!input_from_terminal_p () || !caution
)
1340 if (deprecated_query_hook
)
1342 return deprecated_query_hook (ctlstr
, args
);
1345 /* Format the question outside of the loop, to avoid reusing args. */
1346 question
= xstrvprintf (ctlstr
, args
);
1350 wrap_here (""); /* Flush any buffered output */
1351 gdb_flush (gdb_stdout
);
1353 if (annotation_level
> 1)
1354 printf_filtered (("\n\032\032pre-query\n"));
1356 fputs_filtered (question
, gdb_stdout
);
1357 printf_filtered (_("(%s or %s) "), y_string
, n_string
);
1359 if (annotation_level
> 1)
1360 printf_filtered (("\n\032\032query\n"));
1363 gdb_flush (gdb_stdout
);
1365 answer
= fgetc (stdin
);
1366 clearerr (stdin
); /* in case of C-d */
1367 if (answer
== EOF
) /* C-d */
1369 printf_filtered ("EOF [assumed %c]\n", def_answer
);
1373 /* Eat rest of input line, to EOF or newline */
1377 ans2
= fgetc (stdin
);
1380 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1384 /* Check answer. For the non-default, the user must specify
1385 the non-default explicitly. */
1386 if (answer
== not_def_answer
)
1388 retval
= !def_value
;
1391 /* Otherwise, if a default was specified, the user may either
1392 specify the required input or have it default by entering
1394 if (answer
== def_answer
1395 || (defchar
!= '\0' &&
1396 (answer
== '\n' || answer
== '\r' || answer
== EOF
)))
1401 /* Invalid entries are not defaulted and require another selection. */
1402 printf_filtered (_("Please answer %s or %s.\n"),
1403 y_string
, n_string
);
1407 if (annotation_level
> 1)
1408 printf_filtered (("\n\032\032post-query\n"));
1413 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1414 answer is yes, or 0 if answer is defaulted.
1415 Takes three args which are given to printf to print the question.
1416 The first, a control string, should end in "? ".
1417 It should not say how to answer, because we do that. */
1420 nquery (const char *ctlstr
, ...)
1424 va_start (args
, ctlstr
);
1425 return defaulted_query (ctlstr
, 'n', args
);
1429 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1430 answer is yes, or 1 if answer is defaulted.
1431 Takes three args which are given to printf to print the question.
1432 The first, a control string, should end in "? ".
1433 It should not say how to answer, because we do that. */
1436 yquery (const char *ctlstr
, ...)
1440 va_start (args
, ctlstr
);
1441 return defaulted_query (ctlstr
, 'y', args
);
1445 /* Ask user a y-or-n question and return 1 iff answer is yes.
1446 Takes three args which are given to printf to print the question.
1447 The first, a control string, should end in "? ".
1448 It should not say how to answer, because we do that. */
1451 query (const char *ctlstr
, ...)
1455 va_start (args
, ctlstr
);
1456 return defaulted_query (ctlstr
, '\0', args
);
1460 /* Print an error message saying that we couldn't make sense of a
1461 \^mumble sequence in a string or character constant. START and END
1462 indicate a substring of some larger string that contains the
1463 erroneous backslash sequence, missing the initial backslash. */
1465 no_control_char_error (const char *start
, const char *end
)
1467 int len
= end
- start
;
1468 char *copy
= alloca (end
- start
+ 1);
1470 memcpy (copy
, start
, len
);
1473 error (_("There is no control character `\\%s' in the `%s' character set."),
1474 copy
, target_charset ());
1477 /* Parse a C escape sequence. STRING_PTR points to a variable
1478 containing a pointer to the string to parse. That pointer
1479 should point to the character after the \. That pointer
1480 is updated past the characters we use. The value of the
1481 escape sequence is returned.
1483 A negative value means the sequence \ newline was seen,
1484 which is supposed to be equivalent to nothing at all.
1486 If \ is followed by a null character, we return a negative
1487 value and leave the string pointer pointing at the null character.
1489 If \ is followed by 000, we return 0 and leave the string pointer
1490 after the zeros. A value of 0 does not mean end of string. */
1493 parse_escape (char **string_ptr
)
1496 int c
= *(*string_ptr
)++;
1497 if (c_parse_backslash (c
, &target_char
))
1509 /* Remember where this escape sequence started, for reporting
1511 char *sequence_start_pos
= *string_ptr
- 1;
1513 c
= *(*string_ptr
)++;
1517 /* XXXCHARSET: What is `delete' in the host character set? */
1520 if (!host_char_to_target (c
, &target_char
))
1521 error (_("There is no character corresponding to `Delete' "
1522 "in the target character set `%s'."), host_charset ());
1527 target_char
= parse_escape (string_ptr
);
1530 if (!host_char_to_target (c
, &target_char
))
1531 no_control_char_error (sequence_start_pos
, *string_ptr
);
1534 /* Now target_char is something like `c', and we want to find
1535 its control-character equivalent. */
1536 if (!target_char_to_control_char (target_char
, &target_char
))
1537 no_control_char_error (sequence_start_pos
, *string_ptr
);
1542 /* XXXCHARSET: we need to use isdigit and value-of-digit
1543 methods of the host character set here. */
1559 if (c
>= '0' && c
<= '7')
1573 if (!host_char_to_target (c
, &target_char
))
1575 ("The escape sequence `\%c' is equivalent to plain `%c', which"
1576 " has no equivalent\n" "in the `%s' character set.", c
, c
,
1582 /* Print the character C on STREAM as part of the contents of a literal
1583 string whose delimiter is QUOTER. Note that this routine should only
1584 be call for printing things which are independent of the language
1585 of the program being debugged. */
1588 printchar (int c
, void (*do_fputs
) (const char *, struct ui_file
*),
1589 void (*do_fprintf
) (struct ui_file
*, const char *, ...)
1590 ATTRIBUTE_FPTR_PRINTF_2
, struct ui_file
*stream
, int quoter
)
1593 c
&= 0xFF; /* Avoid sign bit follies */
1595 if (c
< 0x20 || /* Low control chars */
1596 (c
>= 0x7F && c
< 0xA0) || /* DEL, High controls */
1597 (sevenbit_strings
&& c
>= 0x80))
1598 { /* high order bit set */
1602 do_fputs ("\\n", stream
);
1605 do_fputs ("\\b", stream
);
1608 do_fputs ("\\t", stream
);
1611 do_fputs ("\\f", stream
);
1614 do_fputs ("\\r", stream
);
1617 do_fputs ("\\e", stream
);
1620 do_fputs ("\\a", stream
);
1623 do_fprintf (stream
, "\\%.3o", (unsigned int) c
);
1629 if (c
== '\\' || c
== quoter
)
1630 do_fputs ("\\", stream
);
1631 do_fprintf (stream
, "%c", c
);
1635 /* Print the character C on STREAM as part of the contents of a
1636 literal string whose delimiter is QUOTER. Note that these routines
1637 should only be call for printing things which are independent of
1638 the language of the program being debugged. */
1641 fputstr_filtered (const char *str
, int quoter
, struct ui_file
*stream
)
1644 printchar (*str
++, fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1648 fputstr_unfiltered (const char *str
, int quoter
, struct ui_file
*stream
)
1651 printchar (*str
++, fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1655 fputstrn_filtered (const char *str
, int n
, int quoter
,
1656 struct ui_file
*stream
)
1659 for (i
= 0; i
< n
; i
++)
1660 printchar (str
[i
], fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1664 fputstrn_unfiltered (const char *str
, int n
, int quoter
,
1665 struct ui_file
*stream
)
1668 for (i
= 0; i
< n
; i
++)
1669 printchar (str
[i
], fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1673 /* Number of lines per page or UINT_MAX if paging is disabled. */
1674 static unsigned int lines_per_page
;
1676 show_lines_per_page (struct ui_file
*file
, int from_tty
,
1677 struct cmd_list_element
*c
, const char *value
)
1679 fprintf_filtered (file
, _("\
1680 Number of lines gdb thinks are in a page is %s.\n"),
1684 /* Number of chars per line or UINT_MAX if line folding is disabled. */
1685 static unsigned int chars_per_line
;
1687 show_chars_per_line (struct ui_file
*file
, int from_tty
,
1688 struct cmd_list_element
*c
, const char *value
)
1690 fprintf_filtered (file
, _("\
1691 Number of characters gdb thinks are in a line is %s.\n"),
1695 /* Current count of lines printed on this page, chars on this line. */
1696 static unsigned int lines_printed
, chars_printed
;
1698 /* Buffer and start column of buffered text, for doing smarter word-
1699 wrapping. When someone calls wrap_here(), we start buffering output
1700 that comes through fputs_filtered(). If we see a newline, we just
1701 spit it out and forget about the wrap_here(). If we see another
1702 wrap_here(), we spit it out and remember the newer one. If we see
1703 the end of the line, we spit out a newline, the indent, and then
1704 the buffered output. */
1706 /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which
1707 are waiting to be output (they have already been counted in chars_printed).
1708 When wrap_buffer[0] is null, the buffer is empty. */
1709 static char *wrap_buffer
;
1711 /* Pointer in wrap_buffer to the next character to fill. */
1712 static char *wrap_pointer
;
1714 /* String to indent by if the wrap occurs. Must not be NULL if wrap_column
1716 static char *wrap_indent
;
1718 /* Column number on the screen where wrap_buffer begins, or 0 if wrapping
1719 is not in effect. */
1720 static int wrap_column
;
1723 /* Inialize the number of lines per page and chars per line. */
1726 init_page_info (void)
1729 if (!tui_get_command_dimension (&chars_per_line
, &lines_per_page
))
1734 #if defined(__GO32__)
1735 rows
= ScreenRows ();
1736 cols
= ScreenCols ();
1737 lines_per_page
= rows
;
1738 chars_per_line
= cols
;
1740 /* Make sure Readline has initialized its terminal settings. */
1741 rl_reset_terminal (NULL
);
1743 /* Get the screen size from Readline. */
1744 rl_get_screen_size (&rows
, &cols
);
1745 lines_per_page
= rows
;
1746 chars_per_line
= cols
;
1748 /* Readline should have fetched the termcap entry for us. */
1749 if (tgetnum ("li") < 0 || getenv ("EMACS"))
1751 /* The number of lines per page is not mentioned in the
1752 terminal description. This probably means that paging is
1753 not useful (e.g. emacs shell window), so disable paging. */
1754 lines_per_page
= UINT_MAX
;
1757 /* FIXME: Get rid of this junk. */
1758 #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
1759 SIGWINCH_HANDLER (SIGWINCH
);
1762 /* If the output is not a terminal, don't paginate it. */
1763 if (!ui_file_isatty (gdb_stdout
))
1764 lines_per_page
= UINT_MAX
;
1772 /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */
1775 set_screen_size (void)
1777 int rows
= lines_per_page
;
1778 int cols
= chars_per_line
;
1786 /* Update Readline's idea of the terminal size. */
1787 rl_set_screen_size (rows
, cols
);
1790 /* Reinitialize WRAP_BUFFER according to the current value of
1796 if (chars_per_line
== 0)
1801 wrap_buffer
= (char *) xmalloc (chars_per_line
+ 2);
1802 wrap_buffer
[0] = '\0';
1805 wrap_buffer
= (char *) xrealloc (wrap_buffer
, chars_per_line
+ 2);
1806 wrap_pointer
= wrap_buffer
; /* Start it at the beginning. */
1810 set_width_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1817 set_height_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1822 /* Wait, so the user can read what's on the screen. Prompt the user
1823 to continue by pressing RETURN. */
1826 prompt_for_continue (void)
1829 char cont_prompt
[120];
1831 if (annotation_level
> 1)
1832 printf_unfiltered (("\n\032\032pre-prompt-for-continue\n"));
1834 strcpy (cont_prompt
,
1835 "---Type <return> to continue, or q <return> to quit---");
1836 if (annotation_level
> 1)
1837 strcat (cont_prompt
, "\n\032\032prompt-for-continue\n");
1839 /* We must do this *before* we call gdb_readline, else it will eventually
1840 call us -- thinking that we're trying to print beyond the end of the
1842 reinitialize_more_filter ();
1845 /* On a real operating system, the user can quit with SIGINT.
1848 'q' is provided on all systems so users don't have to change habits
1849 from system to system, and because telling them what to do in
1850 the prompt is more user-friendly than expecting them to think of
1852 /* Call readline, not gdb_readline, because GO32 readline handles control-C
1853 whereas control-C to gdb_readline will cause the user to get dumped
1855 ignore
= gdb_readline_wrapper (cont_prompt
);
1857 if (annotation_level
> 1)
1858 printf_unfiltered (("\n\032\032post-prompt-for-continue\n"));
1863 while (*p
== ' ' || *p
== '\t')
1866 async_request_quit (0);
1871 /* Now we have to do this again, so that GDB will know that it doesn't
1872 need to save the ---Type <return>--- line at the top of the screen. */
1873 reinitialize_more_filter ();
1875 dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */
1878 /* Reinitialize filter; ie. tell it to reset to original values. */
1881 reinitialize_more_filter (void)
1887 /* Indicate that if the next sequence of characters overflows the line,
1888 a newline should be inserted here rather than when it hits the end.
1889 If INDENT is non-null, it is a string to be printed to indent the
1890 wrapped part on the next line. INDENT must remain accessible until
1891 the next call to wrap_here() or until a newline is printed through
1894 If the line is already overfull, we immediately print a newline and
1895 the indentation, and disable further wrapping.
1897 If we don't know the width of lines, but we know the page height,
1898 we must not wrap words, but should still keep track of newlines
1899 that were explicitly printed.
1901 INDENT should not contain tabs, as that will mess up the char count
1902 on the next line. FIXME.
1904 This routine is guaranteed to force out any output which has been
1905 squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be
1906 used to force out output from the wrap_buffer. */
1909 wrap_here (char *indent
)
1911 /* This should have been allocated, but be paranoid anyway. */
1913 internal_error (__FILE__
, __LINE__
, _("failed internal consistency check"));
1917 *wrap_pointer
= '\0';
1918 fputs_unfiltered (wrap_buffer
, gdb_stdout
);
1920 wrap_pointer
= wrap_buffer
;
1921 wrap_buffer
[0] = '\0';
1922 if (chars_per_line
== UINT_MAX
) /* No line overflow checking */
1926 else if (chars_printed
>= chars_per_line
)
1928 puts_filtered ("\n");
1930 puts_filtered (indent
);
1935 wrap_column
= chars_printed
;
1939 wrap_indent
= indent
;
1943 /* Print input string to gdb_stdout, filtered, with wrap,
1944 arranging strings in columns of n chars. String can be
1945 right or left justified in the column. Never prints
1946 trailing spaces. String should never be longer than
1947 width. FIXME: this could be useful for the EXAMINE
1948 command, which currently doesn't tabulate very well */
1951 puts_filtered_tabular (char *string
, int width
, int right
)
1957 gdb_assert (chars_per_line
> 0);
1958 if (chars_per_line
== UINT_MAX
)
1960 fputs_filtered (string
, gdb_stdout
);
1961 fputs_filtered ("\n", gdb_stdout
);
1965 if (((chars_printed
- 1) / width
+ 2) * width
>= chars_per_line
)
1966 fputs_filtered ("\n", gdb_stdout
);
1968 if (width
>= chars_per_line
)
1969 width
= chars_per_line
- 1;
1971 stringlen
= strlen (string
);
1973 if (chars_printed
> 0)
1974 spaces
= width
- (chars_printed
- 1) % width
- 1;
1976 spaces
+= width
- stringlen
;
1978 spacebuf
= alloca (spaces
+ 1);
1979 spacebuf
[spaces
] = '\0';
1981 spacebuf
[spaces
] = ' ';
1983 fputs_filtered (spacebuf
, gdb_stdout
);
1984 fputs_filtered (string
, gdb_stdout
);
1988 /* Ensure that whatever gets printed next, using the filtered output
1989 commands, starts at the beginning of the line. I.E. if there is
1990 any pending output for the current line, flush it and start a new
1991 line. Otherwise do nothing. */
1996 if (chars_printed
> 0)
1998 puts_filtered ("\n");
2003 /* Like fputs but if FILTER is true, pause after every screenful.
2005 Regardless of FILTER can wrap at points other than the final
2006 character of a line.
2008 Unlike fputs, fputs_maybe_filtered does not return a value.
2009 It is OK for LINEBUFFER to be NULL, in which case just don't print
2012 Note that a longjmp to top level may occur in this routine (only if
2013 FILTER is true) (since prompt_for_continue may do so) so this
2014 routine should not be called when cleanups are not in place. */
2017 fputs_maybe_filtered (const char *linebuffer
, struct ui_file
*stream
,
2020 const char *lineptr
;
2022 if (linebuffer
== 0)
2025 /* Don't do any filtering if it is disabled. */
2026 if ((stream
!= gdb_stdout
) || !pagination_enabled
2027 || (lines_per_page
== UINT_MAX
&& chars_per_line
== UINT_MAX
))
2029 fputs_unfiltered (linebuffer
, stream
);
2033 /* Go through and output each character. Show line extension
2034 when this is necessary; prompt user for new page when this is
2037 lineptr
= linebuffer
;
2040 /* Possible new page. */
2041 if (filter
&& (lines_printed
>= lines_per_page
- 1))
2042 prompt_for_continue ();
2044 while (*lineptr
&& *lineptr
!= '\n')
2046 /* Print a single line. */
2047 if (*lineptr
== '\t')
2050 *wrap_pointer
++ = '\t';
2052 fputc_unfiltered ('\t', stream
);
2053 /* Shifting right by 3 produces the number of tab stops
2054 we have already passed, and then adding one and
2055 shifting left 3 advances to the next tab stop. */
2056 chars_printed
= ((chars_printed
>> 3) + 1) << 3;
2062 *wrap_pointer
++ = *lineptr
;
2064 fputc_unfiltered (*lineptr
, stream
);
2069 if (chars_printed
>= chars_per_line
)
2071 unsigned int save_chars
= chars_printed
;
2075 /* If we aren't actually wrapping, don't output newline --
2076 if chars_per_line is right, we probably just overflowed
2077 anyway; if it's wrong, let us keep going. */
2079 fputc_unfiltered ('\n', stream
);
2081 /* Possible new page. */
2082 if (lines_printed
>= lines_per_page
- 1)
2083 prompt_for_continue ();
2085 /* Now output indentation and wrapped string */
2088 fputs_unfiltered (wrap_indent
, stream
);
2089 *wrap_pointer
= '\0'; /* Null-terminate saved stuff */
2090 fputs_unfiltered (wrap_buffer
, stream
); /* and eject it */
2091 /* FIXME, this strlen is what prevents wrap_indent from
2092 containing tabs. However, if we recurse to print it
2093 and count its chars, we risk trouble if wrap_indent is
2094 longer than (the user settable) chars_per_line.
2095 Note also that this can set chars_printed > chars_per_line
2096 if we are printing a long string. */
2097 chars_printed
= strlen (wrap_indent
)
2098 + (save_chars
- wrap_column
);
2099 wrap_pointer
= wrap_buffer
; /* Reset buffer */
2100 wrap_buffer
[0] = '\0';
2101 wrap_column
= 0; /* And disable fancy wrap */
2106 if (*lineptr
== '\n')
2109 wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */
2111 fputc_unfiltered ('\n', stream
);
2118 fputs_filtered (const char *linebuffer
, struct ui_file
*stream
)
2120 fputs_maybe_filtered (linebuffer
, stream
, 1);
2124 putchar_unfiltered (int c
)
2127 ui_file_write (gdb_stdout
, &buf
, 1);
2131 /* Write character C to gdb_stdout using GDB's paging mechanism and return C.
2132 May return nonlocally. */
2135 putchar_filtered (int c
)
2137 return fputc_filtered (c
, gdb_stdout
);
2141 fputc_unfiltered (int c
, struct ui_file
*stream
)
2144 ui_file_write (stream
, &buf
, 1);
2149 fputc_filtered (int c
, struct ui_file
*stream
)
2155 fputs_filtered (buf
, stream
);
2159 /* puts_debug is like fputs_unfiltered, except it prints special
2160 characters in printable fashion. */
2163 puts_debug (char *prefix
, char *string
, char *suffix
)
2167 /* Print prefix and suffix after each line. */
2168 static int new_line
= 1;
2169 static int return_p
= 0;
2170 static char *prev_prefix
= "";
2171 static char *prev_suffix
= "";
2173 if (*string
== '\n')
2176 /* If the prefix is changing, print the previous suffix, a new line,
2177 and the new prefix. */
2178 if ((return_p
|| (strcmp (prev_prefix
, prefix
) != 0)) && !new_line
)
2180 fputs_unfiltered (prev_suffix
, gdb_stdlog
);
2181 fputs_unfiltered ("\n", gdb_stdlog
);
2182 fputs_unfiltered (prefix
, gdb_stdlog
);
2185 /* Print prefix if we printed a newline during the previous call. */
2189 fputs_unfiltered (prefix
, gdb_stdlog
);
2192 prev_prefix
= prefix
;
2193 prev_suffix
= suffix
;
2195 /* Output characters in a printable format. */
2196 while ((ch
= *string
++) != '\0')
2202 fputc_unfiltered (ch
, gdb_stdlog
);
2205 fprintf_unfiltered (gdb_stdlog
, "\\x%02x", ch
& 0xff);
2209 fputs_unfiltered ("\\\\", gdb_stdlog
);
2212 fputs_unfiltered ("\\b", gdb_stdlog
);
2215 fputs_unfiltered ("\\f", gdb_stdlog
);
2219 fputs_unfiltered ("\\n", gdb_stdlog
);
2222 fputs_unfiltered ("\\r", gdb_stdlog
);
2225 fputs_unfiltered ("\\t", gdb_stdlog
);
2228 fputs_unfiltered ("\\v", gdb_stdlog
);
2232 return_p
= ch
== '\r';
2235 /* Print suffix if we printed a newline. */
2238 fputs_unfiltered (suffix
, gdb_stdlog
);
2239 fputs_unfiltered ("\n", gdb_stdlog
);
2244 /* Print a variable number of ARGS using format FORMAT. If this
2245 information is going to put the amount written (since the last call
2246 to REINITIALIZE_MORE_FILTER or the last page break) over the page size,
2247 call prompt_for_continue to get the users permision to continue.
2249 Unlike fprintf, this function does not return a value.
2251 We implement three variants, vfprintf (takes a vararg list and stream),
2252 fprintf (takes a stream to write on), and printf (the usual).
2254 Note also that a longjmp to top level may occur in this routine
2255 (since prompt_for_continue may do so) so this routine should not be
2256 called when cleanups are not in place. */
2259 vfprintf_maybe_filtered (struct ui_file
*stream
, const char *format
,
2260 va_list args
, int filter
)
2263 struct cleanup
*old_cleanups
;
2265 linebuffer
= xstrvprintf (format
, args
);
2266 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2267 fputs_maybe_filtered (linebuffer
, stream
, filter
);
2268 do_cleanups (old_cleanups
);
2273 vfprintf_filtered (struct ui_file
*stream
, const char *format
, va_list args
)
2275 vfprintf_maybe_filtered (stream
, format
, args
, 1);
2279 vfprintf_unfiltered (struct ui_file
*stream
, const char *format
, va_list args
)
2282 struct cleanup
*old_cleanups
;
2284 linebuffer
= xstrvprintf (format
, args
);
2285 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2286 if (debug_timestamp
&& stream
== gdb_stdlog
)
2292 gettimeofday (&tm
, NULL
);
2294 len
= strlen (linebuffer
);
2295 need_nl
= (len
> 0 && linebuffer
[len
- 1] != '\n');
2297 timestamp
= xstrprintf ("%ld:%ld %s%s",
2298 (long) tm
.tv_sec
, (long) tm
.tv_usec
,
2300 need_nl
? "\n": "");
2301 make_cleanup (xfree
, timestamp
);
2302 fputs_unfiltered (timestamp
, stream
);
2305 fputs_unfiltered (linebuffer
, stream
);
2306 do_cleanups (old_cleanups
);
2310 vprintf_filtered (const char *format
, va_list args
)
2312 vfprintf_maybe_filtered (gdb_stdout
, format
, args
, 1);
2316 vprintf_unfiltered (const char *format
, va_list args
)
2318 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2322 fprintf_filtered (struct ui_file
*stream
, const char *format
, ...)
2325 va_start (args
, format
);
2326 vfprintf_filtered (stream
, format
, args
);
2331 fprintf_unfiltered (struct ui_file
*stream
, const char *format
, ...)
2334 va_start (args
, format
);
2335 vfprintf_unfiltered (stream
, format
, args
);
2339 /* Like fprintf_filtered, but prints its result indented.
2340 Called as fprintfi_filtered (spaces, stream, format, ...); */
2343 fprintfi_filtered (int spaces
, struct ui_file
*stream
, const char *format
,
2347 va_start (args
, format
);
2348 print_spaces_filtered (spaces
, stream
);
2350 vfprintf_filtered (stream
, format
, args
);
2356 printf_filtered (const char *format
, ...)
2359 va_start (args
, format
);
2360 vfprintf_filtered (gdb_stdout
, format
, args
);
2366 printf_unfiltered (const char *format
, ...)
2369 va_start (args
, format
);
2370 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2374 /* Like printf_filtered, but prints it's result indented.
2375 Called as printfi_filtered (spaces, format, ...); */
2378 printfi_filtered (int spaces
, const char *format
, ...)
2381 va_start (args
, format
);
2382 print_spaces_filtered (spaces
, gdb_stdout
);
2383 vfprintf_filtered (gdb_stdout
, format
, args
);
2387 /* Easy -- but watch out!
2389 This routine is *not* a replacement for puts()! puts() appends a newline.
2390 This one doesn't, and had better not! */
2393 puts_filtered (const char *string
)
2395 fputs_filtered (string
, gdb_stdout
);
2399 puts_unfiltered (const char *string
)
2401 fputs_unfiltered (string
, gdb_stdout
);
2404 /* Return a pointer to N spaces and a null. The pointer is good
2405 until the next call to here. */
2410 static char *spaces
= 0;
2411 static int max_spaces
= -1;
2417 spaces
= (char *) xmalloc (n
+ 1);
2418 for (t
= spaces
+ n
; t
!= spaces
;)
2424 return spaces
+ max_spaces
- n
;
2427 /* Print N spaces. */
2429 print_spaces_filtered (int n
, struct ui_file
*stream
)
2431 fputs_filtered (n_spaces (n
), stream
);
2434 /* C++/ObjC demangler stuff. */
2436 /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language
2437 LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
2438 If the name is not mangled, or the language for the name is unknown, or
2439 demangling is off, the name is printed in its "raw" form. */
2442 fprintf_symbol_filtered (struct ui_file
*stream
, char *name
,
2443 enum language lang
, int arg_mode
)
2449 /* If user wants to see raw output, no problem. */
2452 fputs_filtered (name
, stream
);
2456 demangled
= language_demangle (language_def (lang
), name
, arg_mode
);
2457 fputs_filtered (demangled
? demangled
: name
, stream
);
2458 if (demangled
!= NULL
)
2466 /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any
2467 differences in whitespace. Returns 0 if they match, non-zero if they
2468 don't (slightly different than strcmp()'s range of return values).
2470 As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO".
2471 This "feature" is useful when searching for matching C++ function names
2472 (such as if the user types 'break FOO', where FOO is a mangled C++
2476 strcmp_iw (const char *string1
, const char *string2
)
2478 while ((*string1
!= '\0') && (*string2
!= '\0'))
2480 while (isspace (*string1
))
2484 while (isspace (*string2
))
2488 if (*string1
!= *string2
)
2492 if (*string1
!= '\0')
2498 return (*string1
!= '\0' && *string1
!= '(') || (*string2
!= '\0');
2501 /* This is like strcmp except that it ignores whitespace and treats
2502 '(' as the first non-NULL character in terms of ordering. Like
2503 strcmp (and unlike strcmp_iw), it returns negative if STRING1 <
2504 STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2
2505 according to that ordering.
2507 If a list is sorted according to this function and if you want to
2508 find names in the list that match some fixed NAME according to
2509 strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
2510 where this function would put NAME.
2512 Here are some examples of why using strcmp to sort is a bad idea:
2516 Say your partial symtab contains: "foo<char *>", "goo". Then, if
2517 we try to do a search for "foo<char*>", strcmp will locate this
2518 after "foo<char *>" and before "goo". Then lookup_partial_symbol
2519 will start looking at strings beginning with "goo", and will never
2520 see the correct match of "foo<char *>".
2522 Parenthesis example:
2524 In practice, this is less like to be an issue, but I'll give it a
2525 shot. Let's assume that '$' is a legitimate character to occur in
2526 symbols. (Which may well even be the case on some systems.) Then
2527 say that the partial symbol table contains "foo$" and "foo(int)".
2528 strcmp will put them in this order, since '$' < '('. Now, if the
2529 user searches for "foo", then strcmp will sort "foo" before "foo$".
2530 Then lookup_partial_symbol will notice that strcmp_iw("foo$",
2531 "foo") is false, so it won't proceed to the actual match of
2532 "foo(int)" with "foo". */
2535 strcmp_iw_ordered (const char *string1
, const char *string2
)
2537 while ((*string1
!= '\0') && (*string2
!= '\0'))
2539 while (isspace (*string1
))
2543 while (isspace (*string2
))
2547 if (*string1
!= *string2
)
2551 if (*string1
!= '\0')
2560 /* Characters are non-equal unless they're both '\0'; we want to
2561 make sure we get the comparison right according to our
2562 comparison in the cases where one of them is '\0' or '('. */
2564 if (*string2
== '\0')
2569 if (*string2
== '\0')
2574 if (*string2
== '(')
2577 return *string1
- *string2
;
2581 /* A simple comparison function with opposite semantics to strcmp. */
2584 streq (const char *lhs
, const char *rhs
)
2586 return !strcmp (lhs
, rhs
);
2592 ** Answer whether string_to_compare is a full or partial match to
2593 ** template_string. The partial match must be in sequence starting
2597 subset_compare (char *string_to_compare
, char *template_string
)
2600 if (template_string
!= (char *) NULL
&& string_to_compare
!= (char *) NULL
2601 && strlen (string_to_compare
) <= strlen (template_string
))
2604 (template_string
, string_to_compare
, strlen (string_to_compare
)) == 0);
2611 pagination_on_command (char *arg
, int from_tty
)
2613 pagination_enabled
= 1;
2617 pagination_off_command (char *arg
, int from_tty
)
2619 pagination_enabled
= 0;
2623 show_debug_timestamp (struct ui_file
*file
, int from_tty
,
2624 struct cmd_list_element
*c
, const char *value
)
2626 fprintf_filtered (file
, _("Timestamping debugging messages is %s.\n"), value
);
2631 initialize_utils (void)
2633 struct cmd_list_element
*c
;
2635 add_setshow_uinteger_cmd ("width", class_support
, &chars_per_line
, _("\
2636 Set number of characters gdb thinks are in a line."), _("\
2637 Show number of characters gdb thinks are in a line."), NULL
,
2639 show_chars_per_line
,
2640 &setlist
, &showlist
);
2642 add_setshow_uinteger_cmd ("height", class_support
, &lines_per_page
, _("\
2643 Set number of lines gdb thinks are in a page."), _("\
2644 Show number of lines gdb thinks are in a page."), NULL
,
2646 show_lines_per_page
,
2647 &setlist
, &showlist
);
2651 add_setshow_boolean_cmd ("demangle", class_support
, &demangle
, _("\
2652 Set demangling of encoded C++/ObjC names when displaying symbols."), _("\
2653 Show demangling of encoded C++/ObjC names when displaying symbols."), NULL
,
2656 &setprintlist
, &showprintlist
);
2658 add_setshow_boolean_cmd ("pagination", class_support
,
2659 &pagination_enabled
, _("\
2660 Set state of pagination."), _("\
2661 Show state of pagination."), NULL
,
2663 show_pagination_enabled
,
2664 &setlist
, &showlist
);
2668 add_com ("am", class_support
, pagination_on_command
,
2669 _("Enable pagination"));
2670 add_com ("sm", class_support
, pagination_off_command
,
2671 _("Disable pagination"));
2674 add_setshow_boolean_cmd ("sevenbit-strings", class_support
,
2675 &sevenbit_strings
, _("\
2676 Set printing of 8-bit characters in strings as \\nnn."), _("\
2677 Show printing of 8-bit characters in strings as \\nnn."), NULL
,
2679 show_sevenbit_strings
,
2680 &setprintlist
, &showprintlist
);
2682 add_setshow_boolean_cmd ("asm-demangle", class_support
, &asm_demangle
, _("\
2683 Set demangling of C++/ObjC names in disassembly listings."), _("\
2684 Show demangling of C++/ObjC names in disassembly listings."), NULL
,
2687 &setprintlist
, &showprintlist
);
2689 add_setshow_boolean_cmd ("timestamp", class_maintenance
,
2690 &debug_timestamp
, _("\
2691 Set timestamping of debugging messages."), _("\
2692 Show timestamping of debugging messages."), _("\
2693 When set, debugging messages will be marked with seconds and microseconds."),
2695 show_debug_timestamp
,
2696 &setdebuglist
, &showdebuglist
);
2699 /* Machine specific function to handle SIGWINCH signal. */
2701 #ifdef SIGWINCH_HANDLER_BODY
2702 SIGWINCH_HANDLER_BODY
2704 /* print routines to handle variable size regs, etc. */
2705 /* temporary storage using circular buffer */
2711 static char buf
[NUMCELLS
][CELLSIZE
];
2712 static int cell
= 0;
2713 if (++cell
>= NUMCELLS
)
2721 return (gdbarch_addr_bit (current_gdbarch
) / 8 * 2);
2725 paddr (CORE_ADDR addr
)
2727 return phex (addr
, gdbarch_addr_bit (current_gdbarch
) / 8);
2731 paddr_nz (CORE_ADDR addr
)
2733 return phex_nz (addr
, gdbarch_addr_bit (current_gdbarch
) / 8);
2737 paddress (CORE_ADDR addr
)
2739 /* Truncate address to the size of a target address, avoiding shifts
2740 larger or equal than the width of a CORE_ADDR. The local
2741 variable ADDR_BIT stops the compiler reporting a shift overflow
2742 when it won't occur. */
2743 /* NOTE: This assumes that the significant address information is
2744 kept in the least significant bits of ADDR - the upper bits were
2745 either zero or sign extended. Should gdbarch_address_to_pointer or
2746 some ADDRESS_TO_PRINTABLE() be used to do the conversion? */
2748 int addr_bit
= gdbarch_addr_bit (current_gdbarch
);
2750 if (addr_bit
< (sizeof (CORE_ADDR
) * HOST_CHAR_BIT
))
2751 addr
&= ((CORE_ADDR
) 1 << addr_bit
) - 1;
2752 return hex_string (addr
);
2756 decimal2str (char *sign
, ULONGEST addr
, int width
)
2758 /* Steal code from valprint.c:print_decimal(). Should this worry
2759 about the real size of addr as the above does? */
2760 unsigned long temp
[3];
2761 char *str
= get_cell ();
2766 temp
[i
] = addr
% (1000 * 1000 * 1000);
2767 addr
/= (1000 * 1000 * 1000);
2771 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2780 xsnprintf (str
, CELLSIZE
, "%s%0*lu", sign
, width
, temp
[0]);
2783 xsnprintf (str
, CELLSIZE
, "%s%0*lu%09lu", sign
, width
,
2787 xsnprintf (str
, CELLSIZE
, "%s%0*lu%09lu%09lu", sign
, width
,
2788 temp
[2], temp
[1], temp
[0]);
2791 internal_error (__FILE__
, __LINE__
,
2792 _("failed internal consistency check"));
2799 octal2str (ULONGEST addr
, int width
)
2801 unsigned long temp
[3];
2802 char *str
= get_cell ();
2807 temp
[i
] = addr
% (0100000 * 0100000);
2808 addr
/= (0100000 * 0100000);
2812 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2822 xsnprintf (str
, CELLSIZE
, "%*o", width
, 0);
2824 xsnprintf (str
, CELLSIZE
, "0%0*lo", width
, temp
[0]);
2827 xsnprintf (str
, CELLSIZE
, "0%0*lo%010lo", width
, temp
[1], temp
[0]);
2830 xsnprintf (str
, CELLSIZE
, "0%0*lo%010lo%010lo", width
,
2831 temp
[2], temp
[1], temp
[0]);
2834 internal_error (__FILE__
, __LINE__
,
2835 _("failed internal consistency check"));
2842 pulongest (ULONGEST u
)
2844 return decimal2str ("", u
, 0);
2848 plongest (LONGEST l
)
2851 return decimal2str ("-", -l
, 0);
2853 return decimal2str ("", l
, 0);
2856 /* Eliminate warning from compiler on 32-bit systems. */
2857 static int thirty_two
= 32;
2860 phex (ULONGEST l
, int sizeof_l
)
2868 xsnprintf (str
, CELLSIZE
, "%08lx%08lx",
2869 (unsigned long) (l
>> thirty_two
),
2870 (unsigned long) (l
& 0xffffffff));
2874 xsnprintf (str
, CELLSIZE
, "%08lx", (unsigned long) l
);
2878 xsnprintf (str
, CELLSIZE
, "%04x", (unsigned short) (l
& 0xffff));
2881 str
= phex (l
, sizeof (l
));
2889 phex_nz (ULONGEST l
, int sizeof_l
)
2897 unsigned long high
= (unsigned long) (l
>> thirty_two
);
2900 xsnprintf (str
, CELLSIZE
, "%lx",
2901 (unsigned long) (l
& 0xffffffff));
2903 xsnprintf (str
, CELLSIZE
, "%lx%08lx", high
,
2904 (unsigned long) (l
& 0xffffffff));
2909 xsnprintf (str
, CELLSIZE
, "%lx", (unsigned long) l
);
2913 xsnprintf (str
, CELLSIZE
, "%x", (unsigned short) (l
& 0xffff));
2916 str
= phex_nz (l
, sizeof (l
));
2923 /* Converts a LONGEST to a C-format hexadecimal literal and stores it
2924 in a static string. Returns a pointer to this string. */
2926 hex_string (LONGEST num
)
2928 char *result
= get_cell ();
2929 xsnprintf (result
, CELLSIZE
, "0x%s", phex_nz (num
, sizeof (num
)));
2933 /* Converts a LONGEST number to a C-format hexadecimal literal and
2934 stores it in a static string. Returns a pointer to this string
2935 that is valid until the next call. The number is padded on the
2936 left with 0s to at least WIDTH characters. */
2938 hex_string_custom (LONGEST num
, int width
)
2940 char *result
= get_cell ();
2941 char *result_end
= result
+ CELLSIZE
- 1;
2942 const char *hex
= phex_nz (num
, sizeof (num
));
2943 int hex_len
= strlen (hex
);
2945 if (hex_len
> width
)
2947 if (width
+ 2 >= CELLSIZE
)
2948 internal_error (__FILE__
, __LINE__
,
2949 _("hex_string_custom: insufficient space to store result"));
2951 strcpy (result_end
- width
- 2, "0x");
2952 memset (result_end
- width
, '0', width
);
2953 strcpy (result_end
- hex_len
, hex
);
2954 return result_end
- width
- 2;
2957 /* Convert VAL to a numeral in the given radix. For
2958 * radix 10, IS_SIGNED may be true, indicating a signed quantity;
2959 * otherwise VAL is interpreted as unsigned. If WIDTH is supplied,
2960 * it is the minimum width (0-padded if needed). USE_C_FORMAT means
2961 * to use C format in all cases. If it is false, then 'x'
2962 * and 'o' formats do not include a prefix (0x or leading 0). */
2965 int_string (LONGEST val
, int radix
, int is_signed
, int width
,
2974 result
= hex_string (val
);
2976 result
= hex_string_custom (val
, width
);
2983 if (is_signed
&& val
< 0)
2984 return decimal2str ("-", -val
, width
);
2986 return decimal2str ("", val
, width
);
2990 char *result
= octal2str (val
, width
);
2991 if (use_c_format
|| val
== 0)
2997 internal_error (__FILE__
, __LINE__
,
2998 _("failed internal consistency check"));
3002 /* Convert a CORE_ADDR into a string. */
3004 core_addr_to_string (const CORE_ADDR addr
)
3006 char *str
= get_cell ();
3008 strcat (str
, phex (addr
, sizeof (addr
)));
3013 core_addr_to_string_nz (const CORE_ADDR addr
)
3015 char *str
= get_cell ();
3017 strcat (str
, phex_nz (addr
, sizeof (addr
)));
3021 /* Convert a string back into a CORE_ADDR. */
3023 string_to_core_addr (const char *my_string
)
3025 int addr_bit
= gdbarch_addr_bit (current_gdbarch
);
3028 if (my_string
[0] == '0' && tolower (my_string
[1]) == 'x')
3030 /* Assume that it is in hex. */
3032 for (i
= 2; my_string
[i
] != '\0'; i
++)
3034 if (isdigit (my_string
[i
]))
3035 addr
= (my_string
[i
] - '0') + (addr
* 16);
3036 else if (isxdigit (my_string
[i
]))
3037 addr
= (tolower (my_string
[i
]) - 'a' + 0xa) + (addr
* 16);
3039 error (_("invalid hex \"%s\""), my_string
);
3042 /* Not very modular, but if the executable format expects
3043 addresses to be sign-extended, then do so if the address was
3044 specified with only 32 significant bits. Really this should
3045 be determined by the target architecture, not by the object
3047 if (i
- 2 == addr_bit
/ 4
3049 && bfd_get_sign_extend_vma (exec_bfd
))
3050 addr
= (addr
^ ((CORE_ADDR
) 1 << (addr_bit
- 1)))
3051 - ((CORE_ADDR
) 1 << (addr_bit
- 1));
3055 /* Assume that it is in decimal. */
3057 for (i
= 0; my_string
[i
] != '\0'; i
++)
3059 if (isdigit (my_string
[i
]))
3060 addr
= (my_string
[i
] - '0') + (addr
* 10);
3062 error (_("invalid decimal \"%s\""), my_string
);
3070 host_address_to_string (const void *addr
)
3072 char *str
= get_cell ();
3074 /* We could use the %p conversion specifier to sprintf if we had any
3075 way of knowing whether this host supports it. But the following
3076 should work on the Alpha and on 32 bit machines. */
3077 sprintf (str
, "0x%lx", (unsigned long) addr
);
3082 gdb_realpath (const char *filename
)
3084 /* Method 1: The system has a compile time upper bound on a filename
3085 path. Use that and realpath() to canonicalize the name. This is
3086 the most common case. Note that, if there isn't a compile time
3087 upper bound, you want to avoid realpath() at all costs. */
3088 #if defined(HAVE_REALPATH)
3090 # if defined (PATH_MAX)
3092 # define USE_REALPATH
3093 # elif defined (MAXPATHLEN)
3094 char buf
[MAXPATHLEN
];
3095 # define USE_REALPATH
3097 # if defined (USE_REALPATH)
3098 const char *rp
= realpath (filename
, buf
);
3101 return xstrdup (rp
);
3104 #endif /* HAVE_REALPATH */
3106 /* Method 2: The host system (i.e., GNU) has the function
3107 canonicalize_file_name() which malloc's a chunk of memory and
3108 returns that, use that. */
3109 #if defined(HAVE_CANONICALIZE_FILE_NAME)
3111 char *rp
= canonicalize_file_name (filename
);
3113 return xstrdup (filename
);
3119 /* FIXME: cagney/2002-11-13:
3121 Method 2a: Use realpath() with a NULL buffer. Some systems, due
3122 to the problems described in in method 3, have modified their
3123 realpath() implementation so that it will allocate a buffer when
3124 NULL is passed in. Before this can be used, though, some sort of
3125 configure time test would need to be added. Otherwize the code
3126 will likely core dump. */
3128 /* Method 3: Now we're getting desperate! The system doesn't have a
3129 compile time buffer size and no alternative function. Query the
3130 OS, using pathconf(), for the buffer limit. Care is needed
3131 though, some systems do not limit PATH_MAX (return -1 for
3132 pathconf()) making it impossible to pass a correctly sized buffer
3133 to realpath() (it could always overflow). On those systems, we
3135 #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
3137 /* Find out the max path size. */
3138 long path_max
= pathconf ("/", _PC_PATH_MAX
);
3141 /* PATH_MAX is bounded. */
3142 char *buf
= alloca (path_max
);
3143 char *rp
= realpath (filename
, buf
);
3144 return xstrdup (rp
? rp
: filename
);
3149 /* This system is a lost cause, just dup the buffer. */
3150 return xstrdup (filename
);
3153 /* Return a copy of FILENAME, with its directory prefix canonicalized
3157 xfullpath (const char *filename
)
3159 const char *base_name
= lbasename (filename
);
3164 /* Extract the basename of filename, and return immediately
3165 a copy of filename if it does not contain any directory prefix. */
3166 if (base_name
== filename
)
3167 return xstrdup (filename
);
3169 dir_name
= alloca ((size_t) (base_name
- filename
+ 2));
3170 /* Allocate enough space to store the dir_name + plus one extra
3171 character sometimes needed under Windows (see below), and
3172 then the closing \000 character */
3173 strncpy (dir_name
, filename
, base_name
- filename
);
3174 dir_name
[base_name
- filename
] = '\000';
3176 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
3177 /* We need to be careful when filename is of the form 'd:foo', which
3178 is equivalent of d:./foo, which is totally different from d:/foo. */
3179 if (strlen (dir_name
) == 2 && isalpha (dir_name
[0]) && dir_name
[1] == ':')
3182 dir_name
[3] = '\000';
3186 /* Canonicalize the directory prefix, and build the resulting
3187 filename. If the dirname realpath already contains an ending
3188 directory separator, avoid doubling it. */
3189 real_path
= gdb_realpath (dir_name
);
3190 if (IS_DIR_SEPARATOR (real_path
[strlen (real_path
) - 1]))
3191 result
= concat (real_path
, base_name
, (char *)NULL
);
3193 result
= concat (real_path
, SLASH_STRING
, base_name
, (char *)NULL
);
3200 /* This is the 32-bit CRC function used by the GNU separate debug
3201 facility. An executable may contain a section named
3202 .gnu_debuglink, which holds the name of a separate executable file
3203 containing its debug info, and a checksum of that file's contents,
3204 computed using this function. */
3206 gnu_debuglink_crc32 (unsigned long crc
, unsigned char *buf
, size_t len
)
3208 static const unsigned long crc32_table
[256] = {
3209 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
3210 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
3211 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
3212 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
3213 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
3214 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
3215 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
3216 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
3217 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
3218 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
3219 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
3220 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
3221 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
3222 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
3223 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
3224 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
3225 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
3226 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
3227 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
3228 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
3229 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
3230 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
3231 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
3232 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
3233 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
3234 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
3235 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
3236 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
3237 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
3238 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
3239 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
3240 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
3241 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
3242 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
3243 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
3244 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
3245 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
3246 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
3247 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
3248 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
3249 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
3250 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
3251 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
3252 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
3253 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
3254 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
3255 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
3256 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
3257 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
3258 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
3259 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
3264 crc
= ~crc
& 0xffffffff;
3265 for (end
= buf
+ len
; buf
< end
; ++buf
)
3266 crc
= crc32_table
[(crc
^ *buf
) & 0xff] ^ (crc
>> 8);
3267 return ~crc
& 0xffffffff;;
3271 align_up (ULONGEST v
, int n
)
3273 /* Check that N is really a power of two. */
3274 gdb_assert (n
&& (n
& (n
-1)) == 0);
3275 return (v
+ n
- 1) & -n
;
3279 align_down (ULONGEST v
, int n
)
3281 /* Check that N is really a power of two. */
3282 gdb_assert (n
&& (n
& (n
-1)) == 0);
3286 /* Allocation function for the libiberty hash table which uses an
3287 obstack. The obstack is passed as DATA. */
3290 hashtab_obstack_allocate (void *data
, size_t size
, size_t count
)
3292 unsigned int total
= size
* count
;
3293 void *ptr
= obstack_alloc ((struct obstack
*) data
, total
);
3294 memset (ptr
, 0, total
);
3298 /* Trivial deallocation function for the libiberty splay tree and hash
3299 table - don't deallocate anything. Rely on later deletion of the
3300 obstack. DATA will be the obstack, although it is not needed
3304 dummy_obstack_deallocate (void *object
, void *data
)
3309 /* The bit offset of the highest byte in a ULONGEST, for overflow
3312 #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT)
3314 /* True (non-zero) iff DIGIT is a valid digit in radix BASE,
3315 where 2 <= BASE <= 36. */
3318 is_digit_in_base (unsigned char digit
, int base
)
3320 if (!isalnum (digit
))
3323 return (isdigit (digit
) && digit
< base
+ '0');
3325 return (isdigit (digit
) || tolower (digit
) < base
- 10 + 'a');
3329 digit_to_int (unsigned char c
)
3334 return tolower (c
) - 'a' + 10;
3337 /* As for strtoul, but for ULONGEST results. */
3340 strtoulst (const char *num
, const char **trailer
, int base
)
3342 unsigned int high_part
;
3347 /* Skip leading whitespace. */
3348 while (isspace (num
[i
]))
3351 /* Handle prefixes. */
3354 else if (num
[i
] == '-')
3360 if (base
== 0 || base
== 16)
3362 if (num
[i
] == '0' && (num
[i
+ 1] == 'x' || num
[i
+ 1] == 'X'))
3370 if (base
== 0 && num
[i
] == '0')
3376 if (base
< 2 || base
> 36)
3382 result
= high_part
= 0;
3383 for (; is_digit_in_base (num
[i
], base
); i
+= 1)
3385 result
= result
* base
+ digit_to_int (num
[i
]);
3386 high_part
= high_part
* base
+ (unsigned int) (result
>> HIGH_BYTE_POSN
);
3387 result
&= ((ULONGEST
) 1 << HIGH_BYTE_POSN
) - 1;
3388 if (high_part
> 0xff)
3391 result
= ~ (ULONGEST
) 0;
3398 if (trailer
!= NULL
)
3401 result
= result
+ ((ULONGEST
) high_part
<< HIGH_BYTE_POSN
);
3408 /* Simple, portable version of dirname that does not modify its
3412 ldirname (const char *filename
)
3414 const char *base
= lbasename (filename
);
3417 while (base
> filename
&& IS_DIR_SEPARATOR (base
[-1]))
3420 if (base
== filename
)
3423 dirname
= xmalloc (base
- filename
+ 2);
3424 memcpy (dirname
, filename
, base
- filename
);
3426 /* On DOS based file systems, convert "d:foo" to "d:.", so that we
3427 create "d:./bar" later instead of the (different) "d:/bar". */
3428 if (base
- filename
== 2 && IS_ABSOLUTE_PATH (base
)
3429 && !IS_DIR_SEPARATOR (filename
[0]))
3430 dirname
[base
++ - filename
] = '.';
3432 dirname
[base
- filename
] = '\0';
3436 /* Call libiberty's buildargv, and return the result.
3437 If buildargv fails due to out-of-memory, call nomem.
3438 Therefore, the returned value is guaranteed to be non-NULL,
3439 unless the parameter itself is NULL. */
3442 gdb_buildargv (const char *s
)
3444 char **argv
= buildargv (s
);
3445 if (s
!= NULL
&& argv
== NULL
)