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, 2010 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"
29 #ifdef HAVE_SYS_RESOURCE_H
30 #include <sys/resource.h>
31 #endif /* HAVE_SYS_RESOURCE_H */
34 #include "tui/tui.h" /* For tui_get_command_dimension. */
41 /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */
52 #include "expression.h"
56 #include "filenames.h"
58 #include "gdb_obstack.h"
63 #include "inferior.h" /* for signed_pointer_to_address */
65 #include <sys/param.h> /* For MAXPATHLEN */
67 #include "gdb_curses.h"
69 #include "readline/readline.h"
74 #include "gdb_usleep.h"
78 extern PTR
malloc (); /* ARI: PTR */
80 #if !HAVE_DECL_REALLOC
81 extern PTR
realloc (); /* ARI: PTR */
87 /* readline defines this. */
90 void (*deprecated_error_begin_hook
) (void);
92 /* Prototypes for local functions */
94 static void vfprintf_maybe_filtered (struct ui_file
*, const char *,
95 va_list, int) ATTRIBUTE_PRINTF (2, 0);
97 static void fputs_maybe_filtered (const char *, struct ui_file
*, int);
99 static void do_my_cleanups (struct cleanup
**, struct cleanup
*);
101 static void prompt_for_continue (void);
103 static void set_screen_size (void);
104 static void set_width (void);
106 /* A flag indicating whether to timestamp debugging messages. */
108 static int debug_timestamp
= 0;
110 /* Chain of cleanup actions established with make_cleanup,
111 to be executed if an error happens. */
113 static struct cleanup
*cleanup_chain
; /* cleaned up after a failed command */
114 static struct cleanup
*final_cleanup_chain
; /* cleaned up when gdb exits */
116 /* Nonzero if we have job control. */
120 /* Nonzero means a quit has been requested. */
124 /* Nonzero means quit immediately if Control-C is typed now, rather
125 than waiting until QUIT is executed. Be careful in setting this;
126 code which executes with immediate_quit set has to be very careful
127 about being able to deal with being interrupted at any time. It is
128 almost always better to use QUIT; the only exception I can think of
129 is being able to quit out of a system call (using EINTR loses if
130 the SIGINT happens between the previous QUIT and the system call).
131 To immediately quit in the case in which a SIGINT happens between
132 the previous QUIT and setting immediate_quit (desirable anytime we
133 expect to block), call QUIT after setting immediate_quit. */
137 /* Nonzero means that encoded C++/ObjC names should be printed out in their
138 C++/ObjC form rather than raw. */
142 show_demangle (struct ui_file
*file
, int from_tty
,
143 struct cmd_list_element
*c
, const char *value
)
145 fprintf_filtered (file
, _("\
146 Demangling of encoded C++/ObjC names when displaying symbols is %s.\n"),
150 /* Nonzero means that encoded C++/ObjC names should be printed out in their
151 C++/ObjC form even in assembler language displays. If this is set, but
152 DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */
154 int asm_demangle
= 0;
156 show_asm_demangle (struct ui_file
*file
, int from_tty
,
157 struct cmd_list_element
*c
, const char *value
)
159 fprintf_filtered (file
, _("\
160 Demangling of C++/ObjC names in disassembly listings is %s.\n"),
164 /* Nonzero means that strings with character values >0x7F should be printed
165 as octal escapes. Zero means just print the value (e.g. it's an
166 international character, and the terminal or window can cope.) */
168 int sevenbit_strings
= 0;
170 show_sevenbit_strings (struct ui_file
*file
, int from_tty
,
171 struct cmd_list_element
*c
, const char *value
)
173 fprintf_filtered (file
, _("\
174 Printing of 8-bit characters in strings as \\nnn is %s.\n"),
178 /* String to be printed before error messages, if any. */
180 char *error_pre_print
;
182 /* String to be printed before quit messages, if any. */
184 char *quit_pre_print
;
186 /* String to be printed before warning messages, if any. */
188 char *warning_pre_print
= "\nwarning: ";
190 int pagination_enabled
= 1;
192 show_pagination_enabled (struct ui_file
*file
, int from_tty
,
193 struct cmd_list_element
*c
, const char *value
)
195 fprintf_filtered (file
, _("State of pagination is %s.\n"), value
);
200 /* Add a new cleanup to the cleanup_chain,
201 and return the previous chain pointer
202 to be passed later to do_cleanups or discard_cleanups.
203 Args are FUNCTION to clean up with, and ARG to pass to it. */
206 make_cleanup (make_cleanup_ftype
*function
, void *arg
)
208 return make_my_cleanup (&cleanup_chain
, function
, arg
);
212 make_cleanup_dtor (make_cleanup_ftype
*function
, void *arg
,
213 void (*dtor
) (void *))
215 return make_my_cleanup2 (&cleanup_chain
,
216 function
, arg
, dtor
);
220 make_final_cleanup (make_cleanup_ftype
*function
, void *arg
)
222 return make_my_cleanup (&final_cleanup_chain
, function
, arg
);
226 do_freeargv (void *arg
)
228 freeargv ((char **) arg
);
232 make_cleanup_freeargv (char **arg
)
234 return make_my_cleanup (&cleanup_chain
, do_freeargv
, arg
);
238 do_bfd_close_cleanup (void *arg
)
244 make_cleanup_bfd_close (bfd
*abfd
)
246 return make_cleanup (do_bfd_close_cleanup
, abfd
);
250 do_close_cleanup (void *arg
)
258 make_cleanup_close (int fd
)
260 int *saved_fd
= xmalloc (sizeof (fd
));
263 return make_cleanup_dtor (do_close_cleanup
, saved_fd
, xfree
);
266 /* Helper function which does the work for make_cleanup_fclose. */
269 do_fclose_cleanup (void *arg
)
276 /* Return a new cleanup that closes FILE. */
279 make_cleanup_fclose (FILE *file
)
281 return make_cleanup (do_fclose_cleanup
, file
);
284 /* Helper function which does the work for make_cleanup_obstack_free. */
287 do_obstack_free (void *arg
)
289 struct obstack
*ob
= arg
;
291 obstack_free (ob
, NULL
);
294 /* Return a new cleanup that frees OBSTACK. */
297 make_cleanup_obstack_free (struct obstack
*obstack
)
299 return make_cleanup (do_obstack_free
, obstack
);
303 do_ui_file_delete (void *arg
)
305 ui_file_delete (arg
);
309 make_cleanup_ui_file_delete (struct ui_file
*arg
)
311 return make_my_cleanup (&cleanup_chain
, do_ui_file_delete
, arg
);
315 do_free_section_addr_info (void *arg
)
317 free_section_addr_info (arg
);
321 make_cleanup_free_section_addr_info (struct section_addr_info
*addrs
)
323 return make_my_cleanup (&cleanup_chain
, do_free_section_addr_info
, addrs
);
326 struct restore_integer_closure
333 restore_integer (void *p
)
335 struct restore_integer_closure
*closure
= p
;
337 *(closure
->variable
) = closure
->value
;
340 /* Remember the current value of *VARIABLE and make it restored when the cleanup
344 make_cleanup_restore_integer (int *variable
)
346 struct restore_integer_closure
*c
=
347 xmalloc (sizeof (struct restore_integer_closure
));
349 c
->variable
= variable
;
350 c
->value
= *variable
;
352 return make_my_cleanup2 (&cleanup_chain
, restore_integer
, (void *)c
,
356 /* Remember the current value of *VARIABLE and make it restored when the cleanup
360 make_cleanup_restore_uinteger (unsigned int *variable
)
362 return make_cleanup_restore_integer ((int *) variable
);
365 /* Helper for make_cleanup_unpush_target. */
368 do_unpush_target (void *arg
)
370 struct target_ops
*ops
= arg
;
375 /* Return a new cleanup that unpushes OPS. */
378 make_cleanup_unpush_target (struct target_ops
*ops
)
380 return make_my_cleanup (&cleanup_chain
, do_unpush_target
, ops
);
383 struct restore_ui_file_closure
385 struct ui_file
**variable
;
386 struct ui_file
*value
;
390 do_restore_ui_file (void *p
)
392 struct restore_ui_file_closure
*closure
= p
;
394 *(closure
->variable
) = closure
->value
;
397 /* Remember the current value of *VARIABLE and make it restored when
398 the cleanup is run. */
401 make_cleanup_restore_ui_file (struct ui_file
**variable
)
403 struct restore_ui_file_closure
*c
= XNEW (struct restore_ui_file_closure
);
405 c
->variable
= variable
;
406 c
->value
= *variable
;
408 return make_cleanup_dtor (do_restore_ui_file
, (void *) c
, xfree
);
412 make_my_cleanup2 (struct cleanup
**pmy_chain
, make_cleanup_ftype
*function
,
413 void *arg
, void (*free_arg
) (void *))
416 = (struct cleanup
*) xmalloc (sizeof (struct cleanup
));
417 struct cleanup
*old_chain
= *pmy_chain
;
419 new->next
= *pmy_chain
;
420 new->function
= function
;
421 new->free_arg
= free_arg
;
429 make_my_cleanup (struct cleanup
**pmy_chain
, make_cleanup_ftype
*function
,
432 return make_my_cleanup2 (pmy_chain
, function
, arg
, NULL
);
435 /* Discard cleanups and do the actions they describe
436 until we get back to the point OLD_CHAIN in the cleanup_chain. */
439 do_cleanups (struct cleanup
*old_chain
)
441 do_my_cleanups (&cleanup_chain
, old_chain
);
445 do_final_cleanups (struct cleanup
*old_chain
)
447 do_my_cleanups (&final_cleanup_chain
, old_chain
);
451 do_my_cleanups (struct cleanup
**pmy_chain
,
452 struct cleanup
*old_chain
)
456 while ((ptr
= *pmy_chain
) != old_chain
)
458 *pmy_chain
= ptr
->next
; /* Do this first incase recursion */
459 (*ptr
->function
) (ptr
->arg
);
461 (*ptr
->free_arg
) (ptr
->arg
);
466 /* Discard cleanups, not doing the actions they describe,
467 until we get back to the point OLD_CHAIN in the cleanup_chain. */
470 discard_cleanups (struct cleanup
*old_chain
)
472 discard_my_cleanups (&cleanup_chain
, old_chain
);
476 discard_final_cleanups (struct cleanup
*old_chain
)
478 discard_my_cleanups (&final_cleanup_chain
, old_chain
);
482 discard_my_cleanups (struct cleanup
**pmy_chain
,
483 struct cleanup
*old_chain
)
487 while ((ptr
= *pmy_chain
) != old_chain
)
489 *pmy_chain
= ptr
->next
;
491 (*ptr
->free_arg
) (ptr
->arg
);
496 /* Set the cleanup_chain to 0, and return the old cleanup chain. */
500 return save_my_cleanups (&cleanup_chain
);
504 save_final_cleanups (void)
506 return save_my_cleanups (&final_cleanup_chain
);
510 save_my_cleanups (struct cleanup
**pmy_chain
)
512 struct cleanup
*old_chain
= *pmy_chain
;
518 /* Restore the cleanup chain from a previously saved chain. */
520 restore_cleanups (struct cleanup
*chain
)
522 restore_my_cleanups (&cleanup_chain
, chain
);
526 restore_final_cleanups (struct cleanup
*chain
)
528 restore_my_cleanups (&final_cleanup_chain
, chain
);
532 restore_my_cleanups (struct cleanup
**pmy_chain
, struct cleanup
*chain
)
537 /* This function is useful for cleanups.
541 old_chain = make_cleanup (free_current_contents, &foo);
543 to arrange to free the object thus allocated. */
546 free_current_contents (void *ptr
)
548 void **location
= ptr
;
550 if (location
== NULL
)
551 internal_error (__FILE__
, __LINE__
,
552 _("free_current_contents: NULL pointer"));
553 if (*location
!= NULL
)
560 /* Provide a known function that does nothing, to use as a base for
561 for a possibly long chain of cleanups. This is useful where we
562 use the cleanup chain for handling normal cleanups as well as dealing
563 with cleanups that need to be done as a result of a call to error().
564 In such cases, we may not be certain where the first cleanup is, unless
565 we have a do-nothing one to always use as the base. */
568 null_cleanup (void *arg
)
572 /* If nonzero, display time usage both at startup and for each command. */
574 static int display_time
;
576 /* If nonzero, display space usage both at startup and for each command. */
578 static int display_space
;
580 /* Records a run time and space usage to be used as a base for
581 reporting elapsed time or change in space. In addition,
582 the msg_type field indicates whether the saved time is from the
583 beginning of GDB execution (0) or the beginning of an individual
584 command execution (1). */
592 /* Set whether to display time statistics to NEW_VALUE (non-zero
595 set_display_time (int new_value
)
597 display_time
= new_value
;
600 /* Set whether to display space statistics to NEW_VALUE (non-zero
603 set_display_space (int new_value
)
605 display_space
= new_value
;
608 /* As indicated by display_time and display_space, report GDB's elapsed time
609 and space usage from the base time and space provided in ARG, which
610 must be a pointer to a struct cmd_stat. This function is intended
611 to be called as a cleanup. */
613 report_command_stats (void *arg
)
615 struct cmd_stats
*start_stats
= (struct cmd_stats
*) arg
;
616 int msg_type
= start_stats
->msg_type
;
620 long cmd_time
= get_run_time () - start_stats
->start_time
;
622 printf_unfiltered (msg_type
== 0
623 ? _("Startup time: %ld.%06ld\n")
624 : _("Command execution time: %ld.%06ld\n"),
625 cmd_time
/ 1000000, cmd_time
% 1000000);
631 char *lim
= (char *) sbrk (0);
633 long space_now
= lim
- lim_at_start
;
634 long space_diff
= space_now
- start_stats
->start_space
;
636 printf_unfiltered (msg_type
== 0
637 ? _("Space used: %ld (%c%ld during startup)\n")
638 : _("Space used: %ld (%c%ld for this command)\n"),
640 (space_diff
>= 0 ? '+' : '-'),
646 /* Create a cleanup that reports time and space used since its
647 creation. Precise messages depend on MSG_TYPE:
648 0: Initial time/space
649 1: Individual command time/space. */
651 make_command_stats_cleanup (int msg_type
)
653 struct cmd_stats
*new_stat
= XMALLOC (struct cmd_stats
);
656 char *lim
= (char *) sbrk (0);
657 new_stat
->start_space
= lim
- lim_at_start
;
660 new_stat
->msg_type
= msg_type
;
661 new_stat
->start_time
= get_run_time ();
663 return make_cleanup_dtor (report_command_stats
, new_stat
, xfree
);
666 /* Continuations are implemented as cleanups internally. Inherit from
673 /* Add a continuation to the continuation list of THREAD. The new
674 continuation will be added at the front. */
676 add_continuation (struct thread_info
*thread
,
677 void (*continuation_hook
) (void *), void *args
,
678 void (*continuation_free_args
) (void *))
680 struct cleanup
*as_cleanup
= &thread
->continuations
->base
;
681 make_cleanup_ftype
*continuation_hook_fn
= continuation_hook
;
683 make_my_cleanup2 (&as_cleanup
,
684 continuation_hook_fn
,
686 continuation_free_args
);
688 thread
->continuations
= (struct continuation
*) as_cleanup
;
691 /* Add a continuation to the continuation list of INFERIOR. The new
692 continuation will be added at the front. */
695 add_inferior_continuation (void (*continuation_hook
) (void *), void *args
,
696 void (*continuation_free_args
) (void *))
698 struct inferior
*inf
= current_inferior ();
699 struct cleanup
*as_cleanup
= &inf
->continuations
->base
;
700 make_cleanup_ftype
*continuation_hook_fn
= continuation_hook
;
702 make_my_cleanup2 (&as_cleanup
,
703 continuation_hook_fn
,
705 continuation_free_args
);
707 inf
->continuations
= (struct continuation
*) as_cleanup
;
710 /* Do all continuations of the current inferior. */
713 do_all_inferior_continuations (void)
715 struct cleanup
*as_cleanup
;
716 struct inferior
*inf
= current_inferior ();
718 if (inf
->continuations
== NULL
)
721 /* Copy the list header into another pointer, and set the global
722 list header to null, so that the global list can change as a side
723 effect of invoking the continuations and the processing of the
724 preexisting continuations will not be affected. */
726 as_cleanup
= &inf
->continuations
->base
;
727 inf
->continuations
= NULL
;
729 /* Work now on the list we have set aside. */
730 do_my_cleanups (&as_cleanup
, NULL
);
733 /* Get rid of all the inferior-wide continuations of INF. */
736 discard_all_inferior_continuations (struct inferior
*inf
)
738 struct cleanup
*continuation_ptr
= &inf
->continuations
->base
;
740 discard_my_cleanups (&continuation_ptr
, NULL
);
741 inf
->continuations
= NULL
;
745 restore_thread_cleanup (void *arg
)
747 ptid_t
*ptid_p
= arg
;
749 switch_to_thread (*ptid_p
);
752 /* Walk down the continuation list of PTID, and execute all the
753 continuations. There is a problem though. In some cases new
754 continuations may be added while we are in the middle of this loop.
755 If this happens they will be added in the front, and done before we
756 have a chance of exhausting those that were already there. We need
757 to then save the beginning of the list in a pointer and do the
758 continuations from there on, instead of using the global beginning
759 of list as our iteration pointer. */
761 do_all_continuations_ptid (ptid_t ptid
,
762 struct continuation
**continuations_p
)
764 struct cleanup
*old_chain
;
765 ptid_t current_thread
;
766 struct cleanup
*as_cleanup
;
768 if (*continuations_p
== NULL
)
771 current_thread
= inferior_ptid
;
773 /* Restore selected thread on exit. Don't try to restore the frame
776 - When running continuations, the selected frame is always #0.
778 - The continuations may trigger symbol file loads, which may
779 change the frame layout (frame ids change), which would trigger
780 a warning if we used make_cleanup_restore_current_thread. */
782 old_chain
= make_cleanup (restore_thread_cleanup
, ¤t_thread
);
784 /* Let the continuation see this thread as selected. */
785 switch_to_thread (ptid
);
787 /* Copy the list header into another pointer, and set the global
788 list header to null, so that the global list can change as a side
789 effect of invoking the continuations and the processing of the
790 preexisting continuations will not be affected. */
792 as_cleanup
= &(*continuations_p
)->base
;
793 *continuations_p
= NULL
;
795 /* Work now on the list we have set aside. */
796 do_my_cleanups (&as_cleanup
, NULL
);
798 do_cleanups (old_chain
);
801 /* Callback for iterate over threads. */
803 do_all_continuations_thread_callback (struct thread_info
*thread
, void *data
)
805 do_all_continuations_ptid (thread
->ptid
, &thread
->continuations
);
809 /* Do all continuations of thread THREAD. */
811 do_all_continuations_thread (struct thread_info
*thread
)
813 do_all_continuations_thread_callback (thread
, NULL
);
816 /* Do all continuations of all threads. */
818 do_all_continuations (void)
820 iterate_over_threads (do_all_continuations_thread_callback
, NULL
);
823 /* Callback for iterate over threads. */
825 discard_all_continuations_thread_callback (struct thread_info
*thread
,
828 struct cleanup
*continuation_ptr
= &thread
->continuations
->base
;
830 discard_my_cleanups (&continuation_ptr
, NULL
);
831 thread
->continuations
= NULL
;
835 /* Get rid of all the continuations of THREAD. */
837 discard_all_continuations_thread (struct thread_info
*thread
)
839 discard_all_continuations_thread_callback (thread
, NULL
);
842 /* Get rid of all the continuations of all threads. */
844 discard_all_continuations (void)
846 iterate_over_threads (discard_all_continuations_thread_callback
, NULL
);
850 /* Add a continuation to the intermediate continuation list of THREAD.
851 The new continuation will be added at the front. */
853 add_intermediate_continuation (struct thread_info
*thread
,
854 void (*continuation_hook
)
855 (void *), void *args
,
856 void (*continuation_free_args
) (void *))
858 struct cleanup
*as_cleanup
= &thread
->intermediate_continuations
->base
;
859 make_cleanup_ftype
*continuation_hook_fn
= continuation_hook
;
861 make_my_cleanup2 (&as_cleanup
,
862 continuation_hook_fn
,
864 continuation_free_args
);
866 thread
->intermediate_continuations
= (struct continuation
*) as_cleanup
;
869 /* Walk down the cmd_continuation list, and execute all the
870 continuations. There is a problem though. In some cases new
871 continuations may be added while we are in the middle of this
872 loop. If this happens they will be added in the front, and done
873 before we have a chance of exhausting those that were already
874 there. We need to then save the beginning of the list in a pointer
875 and do the continuations from there on, instead of using the
876 global beginning of list as our iteration pointer.*/
878 do_all_intermediate_continuations_thread_callback (struct thread_info
*thread
,
881 do_all_continuations_ptid (thread
->ptid
,
882 &thread
->intermediate_continuations
);
886 /* Do all intermediate continuations of thread THREAD. */
888 do_all_intermediate_continuations_thread (struct thread_info
*thread
)
890 do_all_intermediate_continuations_thread_callback (thread
, NULL
);
893 /* Do all intermediate continuations of all threads. */
895 do_all_intermediate_continuations (void)
897 iterate_over_threads (do_all_intermediate_continuations_thread_callback
, NULL
);
900 /* Callback for iterate over threads. */
902 discard_all_intermediate_continuations_thread_callback (struct thread_info
*thread
,
905 struct cleanup
*continuation_ptr
= &thread
->intermediate_continuations
->base
;
907 discard_my_cleanups (&continuation_ptr
, NULL
);
908 thread
->intermediate_continuations
= NULL
;
912 /* Get rid of all the intermediate continuations of THREAD. */
914 discard_all_intermediate_continuations_thread (struct thread_info
*thread
)
916 discard_all_intermediate_continuations_thread_callback (thread
, NULL
);
919 /* Get rid of all the intermediate continuations of all threads. */
921 discard_all_intermediate_continuations (void)
923 iterate_over_threads (discard_all_intermediate_continuations_thread_callback
, NULL
);
928 /* Print a warning message. The first argument STRING is the warning
929 message, used as an fprintf format string, the second is the
930 va_list of arguments for that string. A warning is unfiltered (not
931 paginated) so that the user does not need to page through each
932 screen full of warnings when there are lots of them. */
935 vwarning (const char *string
, va_list args
)
937 if (deprecated_warning_hook
)
938 (*deprecated_warning_hook
) (string
, args
);
941 target_terminal_ours ();
942 wrap_here (""); /* Force out any buffered output */
943 gdb_flush (gdb_stdout
);
944 if (warning_pre_print
)
945 fputs_unfiltered (warning_pre_print
, gdb_stderr
);
946 vfprintf_unfiltered (gdb_stderr
, string
, args
);
947 fprintf_unfiltered (gdb_stderr
, "\n");
952 /* Print a warning message.
953 The first argument STRING is the warning message, used as a fprintf string,
954 and the remaining args are passed as arguments to it.
955 The primary difference between warnings and errors is that a warning
956 does not force the return to command level. */
959 warning (const char *string
, ...)
963 va_start (args
, string
);
964 vwarning (string
, args
);
968 /* Print an error message and return to command level.
969 The first argument STRING is the error message, used as a fprintf string,
970 and the remaining args are passed as arguments to it. */
973 verror (const char *string
, va_list args
)
975 throw_verror (GENERIC_ERROR
, string
, args
);
979 error (const char *string
, ...)
983 va_start (args
, string
);
984 throw_verror (GENERIC_ERROR
, string
, args
);
988 /* Print an error message and quit.
989 The first argument STRING is the error message, used as a fprintf string,
990 and the remaining args are passed as arguments to it. */
993 vfatal (const char *string
, va_list args
)
995 throw_vfatal (string
, args
);
999 fatal (const char *string
, ...)
1003 va_start (args
, string
);
1004 throw_vfatal (string
, args
);
1009 error_stream (struct ui_file
*stream
)
1011 char *message
= ui_file_xstrdup (stream
, NULL
);
1013 make_cleanup (xfree
, message
);
1014 error (("%s"), message
);
1017 /* Dump core trying to increase the core soft limit to hard limit first. */
1022 #ifdef HAVE_SETRLIMIT
1023 struct rlimit rlim
= { RLIM_INFINITY
, RLIM_INFINITY
};
1025 setrlimit (RLIMIT_CORE
, &rlim
);
1026 #endif /* HAVE_SETRLIMIT */
1028 abort (); /* NOTE: GDB has only three calls to abort(). */
1031 /* Check whether GDB will be able to dump core using the dump_core function. */
1034 can_dump_core (const char *reason
)
1036 #ifdef HAVE_GETRLIMIT
1039 /* Be quiet and assume we can dump if an error is returned. */
1040 if (getrlimit (RLIMIT_CORE
, &rlim
) != 0)
1043 if (rlim
.rlim_max
== 0)
1045 fprintf_unfiltered (gdb_stderr
,
1046 _("%s\nUnable to dump core, use `ulimit -c unlimited'"
1047 " before executing GDB next time.\n"), reason
);
1050 #endif /* HAVE_GETRLIMIT */
1055 /* Allow the user to configure the debugger behavior with respect to
1056 what to do when an internal problem is detected. */
1058 const char internal_problem_ask
[] = "ask";
1059 const char internal_problem_yes
[] = "yes";
1060 const char internal_problem_no
[] = "no";
1061 static const char *internal_problem_modes
[] =
1063 internal_problem_ask
,
1064 internal_problem_yes
,
1065 internal_problem_no
,
1069 /* Print a message reporting an internal error/warning. Ask the user
1070 if they want to continue, dump core, or just exit. Return
1071 something to indicate a quit. */
1073 struct internal_problem
1076 const char *should_quit
;
1077 const char *should_dump_core
;
1080 /* Report a problem, internal to GDB, to the user. Once the problem
1081 has been reported, and assuming GDB didn't quit, the caller can
1082 either allow execution to resume or throw an error. */
1084 static void ATTRIBUTE_PRINTF (4, 0)
1085 internal_vproblem (struct internal_problem
*problem
,
1086 const char *file
, int line
, const char *fmt
, va_list ap
)
1093 /* Don't allow infinite error/warning recursion. */
1095 static char msg
[] = "Recursive internal problem.\n";
1104 fputs_unfiltered (msg
, gdb_stderr
);
1105 abort (); /* NOTE: GDB has only three calls to abort(). */
1108 /* Newer GLIBC versions put the warn_unused_result attribute
1109 on write, but this is one of those rare cases where
1110 ignoring the return value is correct. Casting to (void)
1111 does not fix this problem. This is the solution suggested
1112 at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */
1113 if (write (STDERR_FILENO
, msg
, sizeof (msg
)) != sizeof (msg
))
1114 abort (); /* NOTE: GDB has only three calls to abort(). */
1119 /* Try to get the message out and at the start of a new line. */
1120 target_terminal_ours ();
1123 /* Create a string containing the full error/warning message. Need
1124 to call query with this full string, as otherwize the reason
1125 (error/warning) and question become separated. Format using a
1126 style similar to a compiler error message. Include extra detail
1127 so that the user knows that they are living on the edge. */
1131 msg
= xstrvprintf (fmt
, ap
);
1132 reason
= xstrprintf ("\
1134 A problem internal to GDB has been detected,\n\
1135 further debugging may prove unreliable.", file
, line
, problem
->name
, msg
);
1137 make_cleanup (xfree
, reason
);
1140 if (problem
->should_quit
== internal_problem_ask
)
1142 /* Default (yes/batch case) is to quit GDB. When in batch mode
1143 this lessens the likelihood of GDB going into an infinite
1147 /* Emit the message and quit. */
1148 fputs_unfiltered (reason
, gdb_stderr
);
1149 fputs_unfiltered ("\n", gdb_stderr
);
1153 quit_p
= query (_("%s\nQuit this debugging session? "), reason
);
1155 else if (problem
->should_quit
== internal_problem_yes
)
1157 else if (problem
->should_quit
== internal_problem_no
)
1160 internal_error (__FILE__
, __LINE__
, _("bad switch"));
1162 if (problem
->should_dump_core
== internal_problem_ask
)
1164 if (!can_dump_core (reason
))
1168 /* Default (yes/batch case) is to dump core. This leaves a GDB
1169 `dropping' so that it is easier to see that something went
1171 dump_core_p
= query (_("%s\nCreate a core file of GDB? "), reason
);
1174 else if (problem
->should_dump_core
== internal_problem_yes
)
1175 dump_core_p
= can_dump_core (reason
);
1176 else if (problem
->should_dump_core
== internal_problem_no
)
1179 internal_error (__FILE__
, __LINE__
, _("bad switch"));
1192 #ifdef HAVE_WORKING_FORK
1202 static struct internal_problem internal_error_problem
= {
1203 "internal-error", internal_problem_ask
, internal_problem_ask
1207 internal_verror (const char *file
, int line
, const char *fmt
, va_list ap
)
1209 internal_vproblem (&internal_error_problem
, file
, line
, fmt
, ap
);
1210 deprecated_throw_reason (RETURN_ERROR
);
1214 internal_error (const char *file
, int line
, const char *string
, ...)
1218 va_start (ap
, string
);
1219 internal_verror (file
, line
, string
, ap
);
1223 static struct internal_problem internal_warning_problem
= {
1224 "internal-warning", internal_problem_ask
, internal_problem_ask
1228 internal_vwarning (const char *file
, int line
, const char *fmt
, va_list ap
)
1230 internal_vproblem (&internal_warning_problem
, file
, line
, fmt
, ap
);
1234 internal_warning (const char *file
, int line
, const char *string
, ...)
1238 va_start (ap
, string
);
1239 internal_vwarning (file
, line
, string
, ap
);
1243 /* Dummy functions to keep add_prefix_cmd happy. */
1246 set_internal_problem_cmd (char *args
, int from_tty
)
1251 show_internal_problem_cmd (char *args
, int from_tty
)
1255 /* When GDB reports an internal problem (error or warning) it gives
1256 the user the opportunity to quit GDB and/or create a core file of
1257 the current debug session. This function registers a few commands
1258 that make it possible to specify that GDB should always or never
1259 quit or create a core file, without asking. The commands look
1262 maint set PROBLEM-NAME quit ask|yes|no
1263 maint show PROBLEM-NAME quit
1264 maint set PROBLEM-NAME corefile ask|yes|no
1265 maint show PROBLEM-NAME corefile
1267 Where PROBLEM-NAME is currently "internal-error" or
1268 "internal-warning". */
1271 add_internal_problem_command (struct internal_problem
*problem
)
1273 struct cmd_list_element
**set_cmd_list
;
1274 struct cmd_list_element
**show_cmd_list
;
1278 set_cmd_list
= xmalloc (sizeof (*set_cmd_list
));
1279 show_cmd_list
= xmalloc (sizeof (*set_cmd_list
));
1280 *set_cmd_list
= NULL
;
1281 *show_cmd_list
= NULL
;
1283 set_doc
= xstrprintf (_("Configure what GDB does when %s is detected."),
1286 show_doc
= xstrprintf (_("Show what GDB does when %s is detected."),
1289 add_prefix_cmd ((char*) problem
->name
,
1290 class_maintenance
, set_internal_problem_cmd
, set_doc
,
1292 concat ("maintenance set ", problem
->name
, " ",
1294 0/*allow-unknown*/, &maintenance_set_cmdlist
);
1296 add_prefix_cmd ((char*) problem
->name
,
1297 class_maintenance
, show_internal_problem_cmd
, show_doc
,
1299 concat ("maintenance show ", problem
->name
, " ",
1301 0/*allow-unknown*/, &maintenance_show_cmdlist
);
1303 set_doc
= xstrprintf (_("\
1304 Set whether GDB should quit when an %s is detected"),
1306 show_doc
= xstrprintf (_("\
1307 Show whether GDB will quit when an %s is detected"),
1309 add_setshow_enum_cmd ("quit", class_maintenance
,
1310 internal_problem_modes
,
1311 &problem
->should_quit
,
1314 NULL
, /* help_doc */
1316 NULL
, /* showfunc */
1323 set_doc
= xstrprintf (_("\
1324 Set whether GDB should create a core file of GDB when %s is detected"),
1326 show_doc
= xstrprintf (_("\
1327 Show whether GDB will create a core file of GDB when %s is detected"),
1329 add_setshow_enum_cmd ("corefile", class_maintenance
,
1330 internal_problem_modes
,
1331 &problem
->should_dump_core
,
1334 NULL
, /* help_doc */
1336 NULL
, /* showfunc */
1344 /* Print the system error message for errno, and also mention STRING
1345 as the file name for which the error was encountered.
1346 Then return to command level. */
1349 perror_with_name (const char *string
)
1354 err
= safe_strerror (errno
);
1355 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
1356 strcpy (combined
, string
);
1357 strcat (combined
, ": ");
1358 strcat (combined
, err
);
1360 /* I understand setting these is a matter of taste. Still, some people
1361 may clear errno but not know about bfd_error. Doing this here is not
1363 bfd_set_error (bfd_error_no_error
);
1366 error (_("%s."), combined
);
1369 /* Print the system error message for ERRCODE, and also mention STRING
1370 as the file name for which the error was encountered. */
1373 print_sys_errmsg (const char *string
, int errcode
)
1378 err
= safe_strerror (errcode
);
1379 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
1380 strcpy (combined
, string
);
1381 strcat (combined
, ": ");
1382 strcat (combined
, err
);
1384 /* We want anything which was printed on stdout to come out first, before
1386 gdb_flush (gdb_stdout
);
1387 fprintf_unfiltered (gdb_stderr
, "%s.\n", combined
);
1390 /* Control C eventually causes this to be called, at a convenient time. */
1396 /* No steenking SIGINT will ever be coming our way when the
1397 program is resumed. Don't lie. */
1401 /* If there is no terminal switching for this target, then we can't
1402 possibly get screwed by the lack of job control. */
1403 || current_target
.to_terminal_ours
== NULL
)
1406 fatal ("Quit (expect signal SIGINT when the program is resumed)");
1411 /* Called when a memory allocation fails, with the number of bytes of
1412 memory requested in SIZE. */
1419 internal_error (__FILE__
, __LINE__
,
1420 _("virtual memory exhausted: can't allocate %ld bytes."),
1425 internal_error (__FILE__
, __LINE__
, _("virtual memory exhausted."));
1429 /* The xmalloc() (libiberty.h) family of memory management routines.
1431 These are like the ISO-C malloc() family except that they implement
1432 consistent semantics and guard against typical memory management
1435 /* NOTE: These are declared using PTR to ensure consistency with
1436 "libiberty.h". xfree() is GDB local. */
1439 xmalloc (size_t size
)
1443 /* See libiberty/xmalloc.c. This function need's to match that's
1444 semantics. It never returns NULL. */
1448 val
= malloc (size
); /* ARI: malloc */
1456 xzalloc (size_t size
)
1458 return xcalloc (1, size
);
1462 xrealloc (PTR ptr
, size_t size
) /* ARI: PTR */
1466 /* See libiberty/xmalloc.c. This function need's to match that's
1467 semantics. It never returns NULL. */
1472 val
= realloc (ptr
, size
); /* ARI: realloc */
1474 val
= malloc (size
); /* ARI: malloc */
1482 xcalloc (size_t number
, size_t size
)
1486 /* See libiberty/xmalloc.c. This function need's to match that's
1487 semantics. It never returns NULL. */
1488 if (number
== 0 || size
== 0)
1494 mem
= calloc (number
, size
); /* ARI: xcalloc */
1496 nomem (number
* size
);
1505 free (ptr
); /* ARI: free */
1509 /* Like asprintf/vasprintf but get an internal_error if the call
1513 xstrprintf (const char *format
, ...)
1518 va_start (args
, format
);
1519 ret
= xstrvprintf (format
, args
);
1525 xasprintf (char **ret
, const char *format
, ...)
1529 va_start (args
, format
);
1530 (*ret
) = xstrvprintf (format
, args
);
1535 xvasprintf (char **ret
, const char *format
, va_list ap
)
1537 (*ret
) = xstrvprintf (format
, ap
);
1541 xstrvprintf (const char *format
, va_list ap
)
1544 int status
= vasprintf (&ret
, format
, ap
);
1546 /* NULL is returned when there was a memory allocation problem, or
1547 any other error (for instance, a bad format string). A negative
1548 status (the printed length) with a non-NULL buffer should never
1549 happen, but just to be sure. */
1550 if (ret
== NULL
|| status
< 0)
1551 internal_error (__FILE__
, __LINE__
, _("vasprintf call failed"));
1556 xsnprintf (char *str
, size_t size
, const char *format
, ...)
1561 va_start (args
, format
);
1562 ret
= vsnprintf (str
, size
, format
, args
);
1563 gdb_assert (ret
< size
);
1569 /* My replacement for the read system call.
1570 Used like `read' but keeps going if `read' returns too soon. */
1573 myread (int desc
, char *addr
, int len
)
1580 val
= read (desc
, addr
, len
);
1584 return orglen
- len
;
1591 /* Make a copy of the string at PTR with SIZE characters
1592 (and add a null character at the end in the copy).
1593 Uses malloc to get the space. Returns the address of the copy. */
1596 savestring (const char *ptr
, size_t size
)
1598 char *p
= (char *) xmalloc (size
+ 1);
1600 memcpy (p
, ptr
, size
);
1606 print_spaces (int n
, struct ui_file
*file
)
1608 fputs_unfiltered (n_spaces (n
), file
);
1611 /* Print a host address. */
1614 gdb_print_host_address (const void *addr
, struct ui_file
*stream
)
1616 fprintf_filtered (stream
, "%s", host_address_to_string (addr
));
1620 /* This function supports the query, nquery, and yquery functions.
1621 Ask user a y-or-n question and return 0 if answer is no, 1 if
1622 answer is yes, or default the answer to the specified default
1623 (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a
1624 default answer, or '\0' for no default.
1625 CTLSTR is the control string and should end in "? ". It should
1626 not say how to answer, because we do that.
1627 ARGS are the arguments passed along with the CTLSTR argument to
1630 static int ATTRIBUTE_PRINTF (1, 0)
1631 defaulted_query (const char *ctlstr
, const char defchar
, va_list args
)
1637 char def_answer
, not_def_answer
;
1638 char *y_string
, *n_string
, *question
;
1640 /* Set up according to which answer is the default. */
1641 if (defchar
== '\0')
1645 not_def_answer
= 'N';
1649 else if (defchar
== 'y')
1653 not_def_answer
= 'N';
1661 not_def_answer
= 'Y';
1666 /* Automatically answer the default value if the user did not want
1667 prompts or the command was issued with the server prefix. */
1668 if (! caution
|| server_command
)
1671 /* If input isn't coming from the user directly, just say what
1672 question we're asking, and then answer the default automatically. This
1673 way, important error messages don't get lost when talking to GDB
1675 if (! input_from_terminal_p ())
1678 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1680 printf_filtered (_("(%s or %s) [answered %c; input not from terminal]\n"),
1681 y_string
, n_string
, def_answer
);
1682 gdb_flush (gdb_stdout
);
1687 if (deprecated_query_hook
)
1689 return deprecated_query_hook (ctlstr
, args
);
1692 /* Format the question outside of the loop, to avoid reusing args. */
1693 question
= xstrvprintf (ctlstr
, args
);
1697 wrap_here (""); /* Flush any buffered output */
1698 gdb_flush (gdb_stdout
);
1700 if (annotation_level
> 1)
1701 printf_filtered (("\n\032\032pre-query\n"));
1703 fputs_filtered (question
, gdb_stdout
);
1704 printf_filtered (_("(%s or %s) "), y_string
, n_string
);
1706 if (annotation_level
> 1)
1707 printf_filtered (("\n\032\032query\n"));
1710 gdb_flush (gdb_stdout
);
1712 answer
= fgetc (stdin
);
1714 /* We expect fgetc to block until a character is read. But
1715 this may not be the case if the terminal was opened with
1716 the NONBLOCK flag. In that case, if there is nothing to
1717 read on stdin, fgetc returns EOF, but also sets the error
1718 condition flag on stdin and errno to EAGAIN. With a true
1719 EOF, stdin's error condition flag is not set.
1721 A situation where this behavior was observed is a pseudo
1723 while (answer
== EOF
&& ferror (stdin
) && errno
== EAGAIN
)
1725 /* Not a real EOF. Wait a little while and try again until
1726 we read something. */
1729 answer
= fgetc (stdin
);
1732 clearerr (stdin
); /* in case of C-d */
1733 if (answer
== EOF
) /* C-d */
1735 printf_filtered ("EOF [assumed %c]\n", def_answer
);
1739 /* Eat rest of input line, to EOF or newline */
1743 ans2
= fgetc (stdin
);
1746 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1750 /* Check answer. For the non-default, the user must specify
1751 the non-default explicitly. */
1752 if (answer
== not_def_answer
)
1754 retval
= !def_value
;
1757 /* Otherwise, if a default was specified, the user may either
1758 specify the required input or have it default by entering
1760 if (answer
== def_answer
1761 || (defchar
!= '\0' &&
1762 (answer
== '\n' || answer
== '\r' || answer
== EOF
)))
1767 /* Invalid entries are not defaulted and require another selection. */
1768 printf_filtered (_("Please answer %s or %s.\n"),
1769 y_string
, n_string
);
1773 if (annotation_level
> 1)
1774 printf_filtered (("\n\032\032post-query\n"));
1779 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1780 answer is yes, or 0 if answer is defaulted.
1781 Takes three args which are given to printf to print the question.
1782 The first, a control string, should end in "? ".
1783 It should not say how to answer, because we do that. */
1786 nquery (const char *ctlstr
, ...)
1790 va_start (args
, ctlstr
);
1791 return defaulted_query (ctlstr
, 'n', args
);
1795 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1796 answer is yes, or 1 if answer is defaulted.
1797 Takes three args which are given to printf to print the question.
1798 The first, a control string, should end in "? ".
1799 It should not say how to answer, because we do that. */
1802 yquery (const char *ctlstr
, ...)
1806 va_start (args
, ctlstr
);
1807 return defaulted_query (ctlstr
, 'y', args
);
1811 /* Ask user a y-or-n question and return 1 iff answer is yes.
1812 Takes three args which are given to printf to print the question.
1813 The first, a control string, should end in "? ".
1814 It should not say how to answer, because we do that. */
1817 query (const char *ctlstr
, ...)
1821 va_start (args
, ctlstr
);
1822 return defaulted_query (ctlstr
, '\0', args
);
1826 /* A helper for parse_escape that converts a host character to a
1827 target character. C is the host character. If conversion is
1828 possible, then the target character is stored in *TARGET_C and the
1829 function returns 1. Otherwise, the function returns 0. */
1832 host_char_to_target (struct gdbarch
*gdbarch
, int c
, int *target_c
)
1834 struct obstack host_data
;
1836 struct cleanup
*cleanups
;
1839 obstack_init (&host_data
);
1840 cleanups
= make_cleanup_obstack_free (&host_data
);
1842 convert_between_encodings (target_charset (gdbarch
), host_charset (),
1843 &the_char
, 1, 1, &host_data
, translit_none
);
1845 if (obstack_object_size (&host_data
) == 1)
1848 *target_c
= *(char *) obstack_base (&host_data
);
1851 do_cleanups (cleanups
);
1855 /* Parse a C escape sequence. STRING_PTR points to a variable
1856 containing a pointer to the string to parse. That pointer
1857 should point to the character after the \. That pointer
1858 is updated past the characters we use. The value of the
1859 escape sequence is returned.
1861 A negative value means the sequence \ newline was seen,
1862 which is supposed to be equivalent to nothing at all.
1864 If \ is followed by a null character, we return a negative
1865 value and leave the string pointer pointing at the null character.
1867 If \ is followed by 000, we return 0 and leave the string pointer
1868 after the zeros. A value of 0 does not mean end of string. */
1871 parse_escape (struct gdbarch
*gdbarch
, char **string_ptr
)
1873 int target_char
= -2; /* initialize to avoid GCC warnings */
1874 int c
= *(*string_ptr
)++;
1893 int i
= host_hex_value (c
);
1898 if (isdigit (c
) && c
!= '8' && c
!= '9')
1902 i
+= host_hex_value (c
);
1938 if (!host_char_to_target (gdbarch
, c
, &target_char
))
1940 ("The escape sequence `\%c' is equivalent to plain `%c', which"
1941 " has no equivalent\n" "in the `%s' character set.", c
, c
,
1942 target_charset (gdbarch
));
1946 /* Print the character C on STREAM as part of the contents of a literal
1947 string whose delimiter is QUOTER. Note that this routine should only
1948 be call for printing things which are independent of the language
1949 of the program being debugged. */
1952 printchar (int c
, void (*do_fputs
) (const char *, struct ui_file
*),
1953 void (*do_fprintf
) (struct ui_file
*, const char *, ...)
1954 ATTRIBUTE_FPTR_PRINTF_2
, struct ui_file
*stream
, int quoter
)
1956 c
&= 0xFF; /* Avoid sign bit follies */
1958 if (c
< 0x20 || /* Low control chars */
1959 (c
>= 0x7F && c
< 0xA0) || /* DEL, High controls */
1960 (sevenbit_strings
&& c
>= 0x80))
1961 { /* high order bit set */
1965 do_fputs ("\\n", stream
);
1968 do_fputs ("\\b", stream
);
1971 do_fputs ("\\t", stream
);
1974 do_fputs ("\\f", stream
);
1977 do_fputs ("\\r", stream
);
1980 do_fputs ("\\e", stream
);
1983 do_fputs ("\\a", stream
);
1986 do_fprintf (stream
, "\\%.3o", (unsigned int) c
);
1992 if (c
== '\\' || c
== quoter
)
1993 do_fputs ("\\", stream
);
1994 do_fprintf (stream
, "%c", c
);
1998 /* Print the character C on STREAM as part of the contents of a
1999 literal string whose delimiter is QUOTER. Note that these routines
2000 should only be call for printing things which are independent of
2001 the language of the program being debugged. */
2004 fputstr_filtered (const char *str
, int quoter
, struct ui_file
*stream
)
2007 printchar (*str
++, fputs_filtered
, fprintf_filtered
, stream
, quoter
);
2011 fputstr_unfiltered (const char *str
, int quoter
, struct ui_file
*stream
)
2014 printchar (*str
++, fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
2018 fputstrn_filtered (const char *str
, int n
, int quoter
,
2019 struct ui_file
*stream
)
2023 for (i
= 0; i
< n
; i
++)
2024 printchar (str
[i
], fputs_filtered
, fprintf_filtered
, stream
, quoter
);
2028 fputstrn_unfiltered (const char *str
, int n
, int quoter
,
2029 struct ui_file
*stream
)
2033 for (i
= 0; i
< n
; i
++)
2034 printchar (str
[i
], fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
2038 /* Number of lines per page or UINT_MAX if paging is disabled. */
2039 static unsigned int lines_per_page
;
2041 show_lines_per_page (struct ui_file
*file
, int from_tty
,
2042 struct cmd_list_element
*c
, const char *value
)
2044 fprintf_filtered (file
, _("\
2045 Number of lines gdb thinks are in a page is %s.\n"),
2049 /* Number of chars per line or UINT_MAX if line folding is disabled. */
2050 static unsigned int chars_per_line
;
2052 show_chars_per_line (struct ui_file
*file
, int from_tty
,
2053 struct cmd_list_element
*c
, const char *value
)
2055 fprintf_filtered (file
, _("\
2056 Number of characters gdb thinks are in a line is %s.\n"),
2060 /* Current count of lines printed on this page, chars on this line. */
2061 static unsigned int lines_printed
, chars_printed
;
2063 /* Buffer and start column of buffered text, for doing smarter word-
2064 wrapping. When someone calls wrap_here(), we start buffering output
2065 that comes through fputs_filtered(). If we see a newline, we just
2066 spit it out and forget about the wrap_here(). If we see another
2067 wrap_here(), we spit it out and remember the newer one. If we see
2068 the end of the line, we spit out a newline, the indent, and then
2069 the buffered output. */
2071 /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which
2072 are waiting to be output (they have already been counted in chars_printed).
2073 When wrap_buffer[0] is null, the buffer is empty. */
2074 static char *wrap_buffer
;
2076 /* Pointer in wrap_buffer to the next character to fill. */
2077 static char *wrap_pointer
;
2079 /* String to indent by if the wrap occurs. Must not be NULL if wrap_column
2081 static char *wrap_indent
;
2083 /* Column number on the screen where wrap_buffer begins, or 0 if wrapping
2084 is not in effect. */
2085 static int wrap_column
;
2088 /* Inialize the number of lines per page and chars per line. */
2091 init_page_info (void)
2095 lines_per_page
= UINT_MAX
;
2096 chars_per_line
= UINT_MAX
;
2100 if (!tui_get_command_dimension (&chars_per_line
, &lines_per_page
))
2105 #if defined(__GO32__)
2106 rows
= ScreenRows ();
2107 cols
= ScreenCols ();
2108 lines_per_page
= rows
;
2109 chars_per_line
= cols
;
2111 /* Make sure Readline has initialized its terminal settings. */
2112 rl_reset_terminal (NULL
);
2114 /* Get the screen size from Readline. */
2115 rl_get_screen_size (&rows
, &cols
);
2116 lines_per_page
= rows
;
2117 chars_per_line
= cols
;
2119 /* Readline should have fetched the termcap entry for us. */
2120 if (tgetnum ("li") < 0 || getenv ("EMACS"))
2122 /* The number of lines per page is not mentioned in the
2123 terminal description. This probably means that paging is
2124 not useful (e.g. emacs shell window), so disable paging. */
2125 lines_per_page
= UINT_MAX
;
2128 /* FIXME: Get rid of this junk. */
2129 #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
2130 SIGWINCH_HANDLER (SIGWINCH
);
2133 /* If the output is not a terminal, don't paginate it. */
2134 if (!ui_file_isatty (gdb_stdout
))
2135 lines_per_page
= UINT_MAX
;
2143 /* Helper for make_cleanup_restore_page_info. */
2146 do_restore_page_info_cleanup (void *arg
)
2152 /* Provide cleanup for restoring the terminal size. */
2155 make_cleanup_restore_page_info (void)
2157 struct cleanup
*back_to
;
2159 back_to
= make_cleanup (do_restore_page_info_cleanup
, NULL
);
2160 make_cleanup_restore_uinteger (&lines_per_page
);
2161 make_cleanup_restore_uinteger (&chars_per_line
);
2166 /* Temporarily set BATCH_FLAG and the associated unlimited terminal size.
2167 Provide cleanup for restoring the original state. */
2170 set_batch_flag_and_make_cleanup_restore_page_info (void)
2172 struct cleanup
*back_to
= make_cleanup_restore_page_info ();
2174 make_cleanup_restore_integer (&batch_flag
);
2181 /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */
2184 set_screen_size (void)
2186 int rows
= lines_per_page
;
2187 int cols
= chars_per_line
;
2195 /* Update Readline's idea of the terminal size. */
2196 rl_set_screen_size (rows
, cols
);
2199 /* Reinitialize WRAP_BUFFER according to the current value of
2205 if (chars_per_line
== 0)
2210 wrap_buffer
= (char *) xmalloc (chars_per_line
+ 2);
2211 wrap_buffer
[0] = '\0';
2214 wrap_buffer
= (char *) xrealloc (wrap_buffer
, chars_per_line
+ 2);
2215 wrap_pointer
= wrap_buffer
; /* Start it at the beginning. */
2219 set_width_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
2226 set_height_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
2231 /* Wait, so the user can read what's on the screen. Prompt the user
2232 to continue by pressing RETURN. */
2235 prompt_for_continue (void)
2238 char cont_prompt
[120];
2240 if (annotation_level
> 1)
2241 printf_unfiltered (("\n\032\032pre-prompt-for-continue\n"));
2243 strcpy (cont_prompt
,
2244 "---Type <return> to continue, or q <return> to quit---");
2245 if (annotation_level
> 1)
2246 strcat (cont_prompt
, "\n\032\032prompt-for-continue\n");
2248 /* We must do this *before* we call gdb_readline, else it will eventually
2249 call us -- thinking that we're trying to print beyond the end of the
2251 reinitialize_more_filter ();
2254 /* On a real operating system, the user can quit with SIGINT.
2257 'q' is provided on all systems so users don't have to change habits
2258 from system to system, and because telling them what to do in
2259 the prompt is more user-friendly than expecting them to think of
2261 /* Call readline, not gdb_readline, because GO32 readline handles control-C
2262 whereas control-C to gdb_readline will cause the user to get dumped
2264 ignore
= gdb_readline_wrapper (cont_prompt
);
2266 if (annotation_level
> 1)
2267 printf_unfiltered (("\n\032\032post-prompt-for-continue\n"));
2273 while (*p
== ' ' || *p
== '\t')
2276 async_request_quit (0);
2281 /* Now we have to do this again, so that GDB will know that it doesn't
2282 need to save the ---Type <return>--- line at the top of the screen. */
2283 reinitialize_more_filter ();
2285 dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */
2288 /* Reinitialize filter; ie. tell it to reset to original values. */
2291 reinitialize_more_filter (void)
2297 /* Indicate that if the next sequence of characters overflows the line,
2298 a newline should be inserted here rather than when it hits the end.
2299 If INDENT is non-null, it is a string to be printed to indent the
2300 wrapped part on the next line. INDENT must remain accessible until
2301 the next call to wrap_here() or until a newline is printed through
2304 If the line is already overfull, we immediately print a newline and
2305 the indentation, and disable further wrapping.
2307 If we don't know the width of lines, but we know the page height,
2308 we must not wrap words, but should still keep track of newlines
2309 that were explicitly printed.
2311 INDENT should not contain tabs, as that will mess up the char count
2312 on the next line. FIXME.
2314 This routine is guaranteed to force out any output which has been
2315 squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be
2316 used to force out output from the wrap_buffer. */
2319 wrap_here (char *indent
)
2321 /* This should have been allocated, but be paranoid anyway. */
2323 internal_error (__FILE__
, __LINE__
, _("failed internal consistency check"));
2327 *wrap_pointer
= '\0';
2328 fputs_unfiltered (wrap_buffer
, gdb_stdout
);
2330 wrap_pointer
= wrap_buffer
;
2331 wrap_buffer
[0] = '\0';
2332 if (chars_per_line
== UINT_MAX
) /* No line overflow checking */
2336 else if (chars_printed
>= chars_per_line
)
2338 puts_filtered ("\n");
2340 puts_filtered (indent
);
2345 wrap_column
= chars_printed
;
2349 wrap_indent
= indent
;
2353 /* Print input string to gdb_stdout, filtered, with wrap,
2354 arranging strings in columns of n chars. String can be
2355 right or left justified in the column. Never prints
2356 trailing spaces. String should never be longer than
2357 width. FIXME: this could be useful for the EXAMINE
2358 command, which currently doesn't tabulate very well */
2361 puts_filtered_tabular (char *string
, int width
, int right
)
2367 gdb_assert (chars_per_line
> 0);
2368 if (chars_per_line
== UINT_MAX
)
2370 fputs_filtered (string
, gdb_stdout
);
2371 fputs_filtered ("\n", gdb_stdout
);
2375 if (((chars_printed
- 1) / width
+ 2) * width
>= chars_per_line
)
2376 fputs_filtered ("\n", gdb_stdout
);
2378 if (width
>= chars_per_line
)
2379 width
= chars_per_line
- 1;
2381 stringlen
= strlen (string
);
2383 if (chars_printed
> 0)
2384 spaces
= width
- (chars_printed
- 1) % width
- 1;
2386 spaces
+= width
- stringlen
;
2388 spacebuf
= alloca (spaces
+ 1);
2389 spacebuf
[spaces
] = '\0';
2391 spacebuf
[spaces
] = ' ';
2393 fputs_filtered (spacebuf
, gdb_stdout
);
2394 fputs_filtered (string
, gdb_stdout
);
2398 /* Ensure that whatever gets printed next, using the filtered output
2399 commands, starts at the beginning of the line. I.E. if there is
2400 any pending output for the current line, flush it and start a new
2401 line. Otherwise do nothing. */
2406 if (chars_printed
> 0)
2408 puts_filtered ("\n");
2413 /* Like fputs but if FILTER is true, pause after every screenful.
2415 Regardless of FILTER can wrap at points other than the final
2416 character of a line.
2418 Unlike fputs, fputs_maybe_filtered does not return a value.
2419 It is OK for LINEBUFFER to be NULL, in which case just don't print
2422 Note that a longjmp to top level may occur in this routine (only if
2423 FILTER is true) (since prompt_for_continue may do so) so this
2424 routine should not be called when cleanups are not in place. */
2427 fputs_maybe_filtered (const char *linebuffer
, struct ui_file
*stream
,
2430 const char *lineptr
;
2432 if (linebuffer
== 0)
2435 /* Don't do any filtering if it is disabled. */
2436 if (stream
!= gdb_stdout
2437 || ! pagination_enabled
2438 || ! input_from_terminal_p ()
2439 || (lines_per_page
== UINT_MAX
&& chars_per_line
== UINT_MAX
)
2440 || top_level_interpreter () == NULL
2441 || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ())))
2443 fputs_unfiltered (linebuffer
, stream
);
2447 /* Go through and output each character. Show line extension
2448 when this is necessary; prompt user for new page when this is
2451 lineptr
= linebuffer
;
2454 /* Possible new page. */
2455 if (filter
&& (lines_printed
>= lines_per_page
- 1))
2456 prompt_for_continue ();
2458 while (*lineptr
&& *lineptr
!= '\n')
2460 /* Print a single line. */
2461 if (*lineptr
== '\t')
2464 *wrap_pointer
++ = '\t';
2466 fputc_unfiltered ('\t', stream
);
2467 /* Shifting right by 3 produces the number of tab stops
2468 we have already passed, and then adding one and
2469 shifting left 3 advances to the next tab stop. */
2470 chars_printed
= ((chars_printed
>> 3) + 1) << 3;
2476 *wrap_pointer
++ = *lineptr
;
2478 fputc_unfiltered (*lineptr
, stream
);
2483 if (chars_printed
>= chars_per_line
)
2485 unsigned int save_chars
= chars_printed
;
2489 /* If we aren't actually wrapping, don't output newline --
2490 if chars_per_line is right, we probably just overflowed
2491 anyway; if it's wrong, let us keep going. */
2493 fputc_unfiltered ('\n', stream
);
2495 /* Possible new page. */
2496 if (lines_printed
>= lines_per_page
- 1)
2497 prompt_for_continue ();
2499 /* Now output indentation and wrapped string */
2502 fputs_unfiltered (wrap_indent
, stream
);
2503 *wrap_pointer
= '\0'; /* Null-terminate saved stuff */
2504 fputs_unfiltered (wrap_buffer
, stream
); /* and eject it */
2505 /* FIXME, this strlen is what prevents wrap_indent from
2506 containing tabs. However, if we recurse to print it
2507 and count its chars, we risk trouble if wrap_indent is
2508 longer than (the user settable) chars_per_line.
2509 Note also that this can set chars_printed > chars_per_line
2510 if we are printing a long string. */
2511 chars_printed
= strlen (wrap_indent
)
2512 + (save_chars
- wrap_column
);
2513 wrap_pointer
= wrap_buffer
; /* Reset buffer */
2514 wrap_buffer
[0] = '\0';
2515 wrap_column
= 0; /* And disable fancy wrap */
2520 if (*lineptr
== '\n')
2523 wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */
2525 fputc_unfiltered ('\n', stream
);
2532 fputs_filtered (const char *linebuffer
, struct ui_file
*stream
)
2534 fputs_maybe_filtered (linebuffer
, stream
, 1);
2538 putchar_unfiltered (int c
)
2542 ui_file_write (gdb_stdout
, &buf
, 1);
2546 /* Write character C to gdb_stdout using GDB's paging mechanism and return C.
2547 May return nonlocally. */
2550 putchar_filtered (int c
)
2552 return fputc_filtered (c
, gdb_stdout
);
2556 fputc_unfiltered (int c
, struct ui_file
*stream
)
2560 ui_file_write (stream
, &buf
, 1);
2565 fputc_filtered (int c
, struct ui_file
*stream
)
2571 fputs_filtered (buf
, stream
);
2575 /* puts_debug is like fputs_unfiltered, except it prints special
2576 characters in printable fashion. */
2579 puts_debug (char *prefix
, char *string
, char *suffix
)
2583 /* Print prefix and suffix after each line. */
2584 static int new_line
= 1;
2585 static int return_p
= 0;
2586 static char *prev_prefix
= "";
2587 static char *prev_suffix
= "";
2589 if (*string
== '\n')
2592 /* If the prefix is changing, print the previous suffix, a new line,
2593 and the new prefix. */
2594 if ((return_p
|| (strcmp (prev_prefix
, prefix
) != 0)) && !new_line
)
2596 fputs_unfiltered (prev_suffix
, gdb_stdlog
);
2597 fputs_unfiltered ("\n", gdb_stdlog
);
2598 fputs_unfiltered (prefix
, gdb_stdlog
);
2601 /* Print prefix if we printed a newline during the previous call. */
2605 fputs_unfiltered (prefix
, gdb_stdlog
);
2608 prev_prefix
= prefix
;
2609 prev_suffix
= suffix
;
2611 /* Output characters in a printable format. */
2612 while ((ch
= *string
++) != '\0')
2618 fputc_unfiltered (ch
, gdb_stdlog
);
2621 fprintf_unfiltered (gdb_stdlog
, "\\x%02x", ch
& 0xff);
2625 fputs_unfiltered ("\\\\", gdb_stdlog
);
2628 fputs_unfiltered ("\\b", gdb_stdlog
);
2631 fputs_unfiltered ("\\f", gdb_stdlog
);
2635 fputs_unfiltered ("\\n", gdb_stdlog
);
2638 fputs_unfiltered ("\\r", gdb_stdlog
);
2641 fputs_unfiltered ("\\t", gdb_stdlog
);
2644 fputs_unfiltered ("\\v", gdb_stdlog
);
2648 return_p
= ch
== '\r';
2651 /* Print suffix if we printed a newline. */
2654 fputs_unfiltered (suffix
, gdb_stdlog
);
2655 fputs_unfiltered ("\n", gdb_stdlog
);
2660 /* Print a variable number of ARGS using format FORMAT. If this
2661 information is going to put the amount written (since the last call
2662 to REINITIALIZE_MORE_FILTER or the last page break) over the page size,
2663 call prompt_for_continue to get the users permision to continue.
2665 Unlike fprintf, this function does not return a value.
2667 We implement three variants, vfprintf (takes a vararg list and stream),
2668 fprintf (takes a stream to write on), and printf (the usual).
2670 Note also that a longjmp to top level may occur in this routine
2671 (since prompt_for_continue may do so) so this routine should not be
2672 called when cleanups are not in place. */
2675 vfprintf_maybe_filtered (struct ui_file
*stream
, const char *format
,
2676 va_list args
, int filter
)
2679 struct cleanup
*old_cleanups
;
2681 linebuffer
= xstrvprintf (format
, args
);
2682 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2683 fputs_maybe_filtered (linebuffer
, stream
, filter
);
2684 do_cleanups (old_cleanups
);
2689 vfprintf_filtered (struct ui_file
*stream
, const char *format
, va_list args
)
2691 vfprintf_maybe_filtered (stream
, format
, args
, 1);
2695 vfprintf_unfiltered (struct ui_file
*stream
, const char *format
, va_list args
)
2698 struct cleanup
*old_cleanups
;
2700 linebuffer
= xstrvprintf (format
, args
);
2701 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2702 if (debug_timestamp
&& stream
== gdb_stdlog
)
2708 gettimeofday (&tm
, NULL
);
2710 len
= strlen (linebuffer
);
2711 need_nl
= (len
> 0 && linebuffer
[len
- 1] != '\n');
2713 timestamp
= xstrprintf ("%ld:%ld %s%s",
2714 (long) tm
.tv_sec
, (long) tm
.tv_usec
,
2716 need_nl
? "\n": "");
2717 make_cleanup (xfree
, timestamp
);
2718 fputs_unfiltered (timestamp
, stream
);
2721 fputs_unfiltered (linebuffer
, stream
);
2722 do_cleanups (old_cleanups
);
2726 vprintf_filtered (const char *format
, va_list args
)
2728 vfprintf_maybe_filtered (gdb_stdout
, format
, args
, 1);
2732 vprintf_unfiltered (const char *format
, va_list args
)
2734 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2738 fprintf_filtered (struct ui_file
*stream
, const char *format
, ...)
2742 va_start (args
, format
);
2743 vfprintf_filtered (stream
, format
, args
);
2748 fprintf_unfiltered (struct ui_file
*stream
, const char *format
, ...)
2752 va_start (args
, format
);
2753 vfprintf_unfiltered (stream
, format
, args
);
2757 /* Like fprintf_filtered, but prints its result indented.
2758 Called as fprintfi_filtered (spaces, stream, format, ...); */
2761 fprintfi_filtered (int spaces
, struct ui_file
*stream
, const char *format
,
2766 va_start (args
, format
);
2767 print_spaces_filtered (spaces
, stream
);
2769 vfprintf_filtered (stream
, format
, args
);
2775 printf_filtered (const char *format
, ...)
2779 va_start (args
, format
);
2780 vfprintf_filtered (gdb_stdout
, format
, args
);
2786 printf_unfiltered (const char *format
, ...)
2790 va_start (args
, format
);
2791 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2795 /* Like printf_filtered, but prints it's result indented.
2796 Called as printfi_filtered (spaces, format, ...); */
2799 printfi_filtered (int spaces
, const char *format
, ...)
2803 va_start (args
, format
);
2804 print_spaces_filtered (spaces
, gdb_stdout
);
2805 vfprintf_filtered (gdb_stdout
, format
, args
);
2809 /* Easy -- but watch out!
2811 This routine is *not* a replacement for puts()! puts() appends a newline.
2812 This one doesn't, and had better not! */
2815 puts_filtered (const char *string
)
2817 fputs_filtered (string
, gdb_stdout
);
2821 puts_unfiltered (const char *string
)
2823 fputs_unfiltered (string
, gdb_stdout
);
2826 /* Return a pointer to N spaces and a null. The pointer is good
2827 until the next call to here. */
2832 static char *spaces
= 0;
2833 static int max_spaces
= -1;
2839 spaces
= (char *) xmalloc (n
+ 1);
2840 for (t
= spaces
+ n
; t
!= spaces
;)
2846 return spaces
+ max_spaces
- n
;
2849 /* Print N spaces. */
2851 print_spaces_filtered (int n
, struct ui_file
*stream
)
2853 fputs_filtered (n_spaces (n
), stream
);
2856 /* C++/ObjC demangler stuff. */
2858 /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language
2859 LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
2860 If the name is not mangled, or the language for the name is unknown, or
2861 demangling is off, the name is printed in its "raw" form. */
2864 fprintf_symbol_filtered (struct ui_file
*stream
, char *name
,
2865 enum language lang
, int arg_mode
)
2871 /* If user wants to see raw output, no problem. */
2874 fputs_filtered (name
, stream
);
2878 demangled
= language_demangle (language_def (lang
), name
, arg_mode
);
2879 fputs_filtered (demangled
? demangled
: name
, stream
);
2880 if (demangled
!= NULL
)
2888 /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any
2889 differences in whitespace. Returns 0 if they match, non-zero if they
2890 don't (slightly different than strcmp()'s range of return values).
2892 As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO".
2893 This "feature" is useful when searching for matching C++ function names
2894 (such as if the user types 'break FOO', where FOO is a mangled C++
2898 strcmp_iw (const char *string1
, const char *string2
)
2900 while ((*string1
!= '\0') && (*string2
!= '\0'))
2902 while (isspace (*string1
))
2906 while (isspace (*string2
))
2910 if (*string1
!= *string2
)
2914 if (*string1
!= '\0')
2920 return (*string1
!= '\0' && *string1
!= '(') || (*string2
!= '\0');
2923 /* This is like strcmp except that it ignores whitespace and treats
2924 '(' as the first non-NULL character in terms of ordering. Like
2925 strcmp (and unlike strcmp_iw), it returns negative if STRING1 <
2926 STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2
2927 according to that ordering.
2929 If a list is sorted according to this function and if you want to
2930 find names in the list that match some fixed NAME according to
2931 strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
2932 where this function would put NAME.
2934 Here are some examples of why using strcmp to sort is a bad idea:
2938 Say your partial symtab contains: "foo<char *>", "goo". Then, if
2939 we try to do a search for "foo<char*>", strcmp will locate this
2940 after "foo<char *>" and before "goo". Then lookup_partial_symbol
2941 will start looking at strings beginning with "goo", and will never
2942 see the correct match of "foo<char *>".
2944 Parenthesis example:
2946 In practice, this is less like to be an issue, but I'll give it a
2947 shot. Let's assume that '$' is a legitimate character to occur in
2948 symbols. (Which may well even be the case on some systems.) Then
2949 say that the partial symbol table contains "foo$" and "foo(int)".
2950 strcmp will put them in this order, since '$' < '('. Now, if the
2951 user searches for "foo", then strcmp will sort "foo" before "foo$".
2952 Then lookup_partial_symbol will notice that strcmp_iw("foo$",
2953 "foo") is false, so it won't proceed to the actual match of
2954 "foo(int)" with "foo". */
2957 strcmp_iw_ordered (const char *string1
, const char *string2
)
2959 while ((*string1
!= '\0') && (*string2
!= '\0'))
2961 while (isspace (*string1
))
2965 while (isspace (*string2
))
2969 if (*string1
!= *string2
)
2973 if (*string1
!= '\0')
2982 /* Characters are non-equal unless they're both '\0'; we want to
2983 make sure we get the comparison right according to our
2984 comparison in the cases where one of them is '\0' or '('. */
2986 if (*string2
== '\0')
2991 if (*string2
== '\0')
2996 if (*string2
== '(')
2999 return *string1
- *string2
;
3003 /* A simple comparison function with opposite semantics to strcmp. */
3006 streq (const char *lhs
, const char *rhs
)
3008 return !strcmp (lhs
, rhs
);
3014 ** Answer whether string_to_compare is a full or partial match to
3015 ** template_string. The partial match must be in sequence starting
3019 subset_compare (char *string_to_compare
, char *template_string
)
3023 if (template_string
!= (char *) NULL
&& string_to_compare
!= (char *) NULL
3024 && strlen (string_to_compare
) <= strlen (template_string
))
3027 (template_string
, string_to_compare
, strlen (string_to_compare
)) == 0);
3034 pagination_on_command (char *arg
, int from_tty
)
3036 pagination_enabled
= 1;
3040 pagination_off_command (char *arg
, int from_tty
)
3042 pagination_enabled
= 0;
3046 show_debug_timestamp (struct ui_file
*file
, int from_tty
,
3047 struct cmd_list_element
*c
, const char *value
)
3049 fprintf_filtered (file
, _("Timestamping debugging messages is %s.\n"), value
);
3054 initialize_utils (void)
3056 add_setshow_uinteger_cmd ("width", class_support
, &chars_per_line
, _("\
3057 Set number of characters gdb thinks are in a line."), _("\
3058 Show number of characters gdb thinks are in a line."), NULL
,
3060 show_chars_per_line
,
3061 &setlist
, &showlist
);
3063 add_setshow_uinteger_cmd ("height", class_support
, &lines_per_page
, _("\
3064 Set number of lines gdb thinks are in a page."), _("\
3065 Show number of lines gdb thinks are in a page."), NULL
,
3067 show_lines_per_page
,
3068 &setlist
, &showlist
);
3072 add_setshow_boolean_cmd ("demangle", class_support
, &demangle
, _("\
3073 Set demangling of encoded C++/ObjC names when displaying symbols."), _("\
3074 Show demangling of encoded C++/ObjC names when displaying symbols."), NULL
,
3077 &setprintlist
, &showprintlist
);
3079 add_setshow_boolean_cmd ("pagination", class_support
,
3080 &pagination_enabled
, _("\
3081 Set state of pagination."), _("\
3082 Show state of pagination."), NULL
,
3084 show_pagination_enabled
,
3085 &setlist
, &showlist
);
3089 add_com ("am", class_support
, pagination_on_command
,
3090 _("Enable pagination"));
3091 add_com ("sm", class_support
, pagination_off_command
,
3092 _("Disable pagination"));
3095 add_setshow_boolean_cmd ("sevenbit-strings", class_support
,
3096 &sevenbit_strings
, _("\
3097 Set printing of 8-bit characters in strings as \\nnn."), _("\
3098 Show printing of 8-bit characters in strings as \\nnn."), NULL
,
3100 show_sevenbit_strings
,
3101 &setprintlist
, &showprintlist
);
3103 add_setshow_boolean_cmd ("asm-demangle", class_support
, &asm_demangle
, _("\
3104 Set demangling of C++/ObjC names in disassembly listings."), _("\
3105 Show demangling of C++/ObjC names in disassembly listings."), NULL
,
3108 &setprintlist
, &showprintlist
);
3110 add_setshow_boolean_cmd ("timestamp", class_maintenance
,
3111 &debug_timestamp
, _("\
3112 Set timestamping of debugging messages."), _("\
3113 Show timestamping of debugging messages."), _("\
3114 When set, debugging messages will be marked with seconds and microseconds."),
3116 show_debug_timestamp
,
3117 &setdebuglist
, &showdebuglist
);
3120 /* Machine specific function to handle SIGWINCH signal. */
3122 #ifdef SIGWINCH_HANDLER_BODY
3123 SIGWINCH_HANDLER_BODY
3125 /* print routines to handle variable size regs, etc. */
3126 /* temporary storage using circular buffer */
3132 static char buf
[NUMCELLS
][CELLSIZE
];
3133 static int cell
= 0;
3135 if (++cell
>= NUMCELLS
)
3141 paddress (struct gdbarch
*gdbarch
, CORE_ADDR addr
)
3143 /* Truncate address to the size of a target address, avoiding shifts
3144 larger or equal than the width of a CORE_ADDR. The local
3145 variable ADDR_BIT stops the compiler reporting a shift overflow
3146 when it won't occur. */
3147 /* NOTE: This assumes that the significant address information is
3148 kept in the least significant bits of ADDR - the upper bits were
3149 either zero or sign extended. Should gdbarch_address_to_pointer or
3150 some ADDRESS_TO_PRINTABLE() be used to do the conversion? */
3152 int addr_bit
= gdbarch_addr_bit (gdbarch
);
3154 if (addr_bit
< (sizeof (CORE_ADDR
) * HOST_CHAR_BIT
))
3155 addr
&= ((CORE_ADDR
) 1 << addr_bit
) - 1;
3156 return hex_string (addr
);
3160 decimal2str (char *sign
, ULONGEST addr
, int width
)
3162 /* Steal code from valprint.c:print_decimal(). Should this worry
3163 about the real size of addr as the above does? */
3164 unsigned long temp
[3];
3165 char *str
= get_cell ();
3170 temp
[i
] = addr
% (1000 * 1000 * 1000);
3171 addr
/= (1000 * 1000 * 1000);
3175 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
3184 xsnprintf (str
, CELLSIZE
, "%s%0*lu", sign
, width
, temp
[0]);
3187 xsnprintf (str
, CELLSIZE
, "%s%0*lu%09lu", sign
, width
,
3191 xsnprintf (str
, CELLSIZE
, "%s%0*lu%09lu%09lu", sign
, width
,
3192 temp
[2], temp
[1], temp
[0]);
3195 internal_error (__FILE__
, __LINE__
,
3196 _("failed internal consistency check"));
3203 octal2str (ULONGEST addr
, int width
)
3205 unsigned long temp
[3];
3206 char *str
= get_cell ();
3211 temp
[i
] = addr
% (0100000 * 0100000);
3212 addr
/= (0100000 * 0100000);
3216 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
3226 xsnprintf (str
, CELLSIZE
, "%*o", width
, 0);
3228 xsnprintf (str
, CELLSIZE
, "0%0*lo", width
, temp
[0]);
3231 xsnprintf (str
, CELLSIZE
, "0%0*lo%010lo", width
, temp
[1], temp
[0]);
3234 xsnprintf (str
, CELLSIZE
, "0%0*lo%010lo%010lo", width
,
3235 temp
[2], temp
[1], temp
[0]);
3238 internal_error (__FILE__
, __LINE__
,
3239 _("failed internal consistency check"));
3246 pulongest (ULONGEST u
)
3248 return decimal2str ("", u
, 0);
3252 plongest (LONGEST l
)
3255 return decimal2str ("-", -l
, 0);
3257 return decimal2str ("", l
, 0);
3260 /* Eliminate warning from compiler on 32-bit systems. */
3261 static int thirty_two
= 32;
3264 phex (ULONGEST l
, int sizeof_l
)
3272 xsnprintf (str
, CELLSIZE
, "%08lx%08lx",
3273 (unsigned long) (l
>> thirty_two
),
3274 (unsigned long) (l
& 0xffffffff));
3278 xsnprintf (str
, CELLSIZE
, "%08lx", (unsigned long) l
);
3282 xsnprintf (str
, CELLSIZE
, "%04x", (unsigned short) (l
& 0xffff));
3285 str
= phex (l
, sizeof (l
));
3293 phex_nz (ULONGEST l
, int sizeof_l
)
3301 unsigned long high
= (unsigned long) (l
>> thirty_two
);
3305 xsnprintf (str
, CELLSIZE
, "%lx",
3306 (unsigned long) (l
& 0xffffffff));
3308 xsnprintf (str
, CELLSIZE
, "%lx%08lx", high
,
3309 (unsigned long) (l
& 0xffffffff));
3314 xsnprintf (str
, CELLSIZE
, "%lx", (unsigned long) l
);
3318 xsnprintf (str
, CELLSIZE
, "%x", (unsigned short) (l
& 0xffff));
3321 str
= phex_nz (l
, sizeof (l
));
3328 /* Converts a LONGEST to a C-format hexadecimal literal and stores it
3329 in a static string. Returns a pointer to this string. */
3331 hex_string (LONGEST num
)
3333 char *result
= get_cell ();
3335 xsnprintf (result
, CELLSIZE
, "0x%s", phex_nz (num
, sizeof (num
)));
3339 /* Converts a LONGEST number to a C-format hexadecimal literal and
3340 stores it in a static string. Returns a pointer to this string
3341 that is valid until the next call. The number is padded on the
3342 left with 0s to at least WIDTH characters. */
3344 hex_string_custom (LONGEST num
, int width
)
3346 char *result
= get_cell ();
3347 char *result_end
= result
+ CELLSIZE
- 1;
3348 const char *hex
= phex_nz (num
, sizeof (num
));
3349 int hex_len
= strlen (hex
);
3351 if (hex_len
> width
)
3353 if (width
+ 2 >= CELLSIZE
)
3354 internal_error (__FILE__
, __LINE__
,
3355 _("hex_string_custom: insufficient space to store result"));
3357 strcpy (result_end
- width
- 2, "0x");
3358 memset (result_end
- width
, '0', width
);
3359 strcpy (result_end
- hex_len
, hex
);
3360 return result_end
- width
- 2;
3363 /* Convert VAL to a numeral in the given radix. For
3364 * radix 10, IS_SIGNED may be true, indicating a signed quantity;
3365 * otherwise VAL is interpreted as unsigned. If WIDTH is supplied,
3366 * it is the minimum width (0-padded if needed). USE_C_FORMAT means
3367 * to use C format in all cases. If it is false, then 'x'
3368 * and 'o' formats do not include a prefix (0x or leading 0). */
3371 int_string (LONGEST val
, int radix
, int is_signed
, int width
,
3381 result
= hex_string (val
);
3383 result
= hex_string_custom (val
, width
);
3390 if (is_signed
&& val
< 0)
3391 return decimal2str ("-", -val
, width
);
3393 return decimal2str ("", val
, width
);
3397 char *result
= octal2str (val
, width
);
3399 if (use_c_format
|| val
== 0)
3405 internal_error (__FILE__
, __LINE__
,
3406 _("failed internal consistency check"));
3410 /* Convert a CORE_ADDR into a string. */
3412 core_addr_to_string (const CORE_ADDR addr
)
3414 char *str
= get_cell ();
3417 strcat (str
, phex (addr
, sizeof (addr
)));
3422 core_addr_to_string_nz (const CORE_ADDR addr
)
3424 char *str
= get_cell ();
3427 strcat (str
, phex_nz (addr
, sizeof (addr
)));
3431 /* Convert a string back into a CORE_ADDR. */
3433 string_to_core_addr (const char *my_string
)
3437 if (my_string
[0] == '0' && tolower (my_string
[1]) == 'x')
3439 /* Assume that it is in hex. */
3442 for (i
= 2; my_string
[i
] != '\0'; i
++)
3444 if (isdigit (my_string
[i
]))
3445 addr
= (my_string
[i
] - '0') + (addr
* 16);
3446 else if (isxdigit (my_string
[i
]))
3447 addr
= (tolower (my_string
[i
]) - 'a' + 0xa) + (addr
* 16);
3449 error (_("invalid hex \"%s\""), my_string
);
3454 /* Assume that it is in decimal. */
3457 for (i
= 0; my_string
[i
] != '\0'; i
++)
3459 if (isdigit (my_string
[i
]))
3460 addr
= (my_string
[i
] - '0') + (addr
* 10);
3462 error (_("invalid decimal \"%s\""), my_string
);
3470 host_address_to_string (const void *addr
)
3472 char *str
= get_cell ();
3474 xsnprintf (str
, CELLSIZE
, "0x%s", phex_nz ((uintptr_t) addr
, sizeof (addr
)));
3479 gdb_realpath (const char *filename
)
3481 /* Method 1: The system has a compile time upper bound on a filename
3482 path. Use that and realpath() to canonicalize the name. This is
3483 the most common case. Note that, if there isn't a compile time
3484 upper bound, you want to avoid realpath() at all costs. */
3485 #if defined(HAVE_REALPATH)
3487 # if defined (PATH_MAX)
3489 # define USE_REALPATH
3490 # elif defined (MAXPATHLEN)
3491 char buf
[MAXPATHLEN
];
3492 # define USE_REALPATH
3494 # if defined (USE_REALPATH)
3495 const char *rp
= realpath (filename
, buf
);
3499 return xstrdup (rp
);
3502 #endif /* HAVE_REALPATH */
3504 /* Method 2: The host system (i.e., GNU) has the function
3505 canonicalize_file_name() which malloc's a chunk of memory and
3506 returns that, use that. */
3507 #if defined(HAVE_CANONICALIZE_FILE_NAME)
3509 char *rp
= canonicalize_file_name (filename
);
3512 return xstrdup (filename
);
3518 /* FIXME: cagney/2002-11-13:
3520 Method 2a: Use realpath() with a NULL buffer. Some systems, due
3521 to the problems described in in method 3, have modified their
3522 realpath() implementation so that it will allocate a buffer when
3523 NULL is passed in. Before this can be used, though, some sort of
3524 configure time test would need to be added. Otherwize the code
3525 will likely core dump. */
3527 /* Method 3: Now we're getting desperate! The system doesn't have a
3528 compile time buffer size and no alternative function. Query the
3529 OS, using pathconf(), for the buffer limit. Care is needed
3530 though, some systems do not limit PATH_MAX (return -1 for
3531 pathconf()) making it impossible to pass a correctly sized buffer
3532 to realpath() (it could always overflow). On those systems, we
3534 #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
3536 /* Find out the max path size. */
3537 long path_max
= pathconf ("/", _PC_PATH_MAX
);
3541 /* PATH_MAX is bounded. */
3542 char *buf
= alloca (path_max
);
3543 char *rp
= realpath (filename
, buf
);
3545 return xstrdup (rp
? rp
: filename
);
3550 /* This system is a lost cause, just dup the buffer. */
3551 return xstrdup (filename
);
3554 /* Return a copy of FILENAME, with its directory prefix canonicalized
3558 xfullpath (const char *filename
)
3560 const char *base_name
= lbasename (filename
);
3565 /* Extract the basename of filename, and return immediately
3566 a copy of filename if it does not contain any directory prefix. */
3567 if (base_name
== filename
)
3568 return xstrdup (filename
);
3570 dir_name
= alloca ((size_t) (base_name
- filename
+ 2));
3571 /* Allocate enough space to store the dir_name + plus one extra
3572 character sometimes needed under Windows (see below), and
3573 then the closing \000 character */
3574 strncpy (dir_name
, filename
, base_name
- filename
);
3575 dir_name
[base_name
- filename
] = '\000';
3577 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
3578 /* We need to be careful when filename is of the form 'd:foo', which
3579 is equivalent of d:./foo, which is totally different from d:/foo. */
3580 if (strlen (dir_name
) == 2 && isalpha (dir_name
[0]) && dir_name
[1] == ':')
3583 dir_name
[3] = '\000';
3587 /* Canonicalize the directory prefix, and build the resulting
3588 filename. If the dirname realpath already contains an ending
3589 directory separator, avoid doubling it. */
3590 real_path
= gdb_realpath (dir_name
);
3591 if (IS_DIR_SEPARATOR (real_path
[strlen (real_path
) - 1]))
3592 result
= concat (real_path
, base_name
, (char *) NULL
);
3594 result
= concat (real_path
, SLASH_STRING
, base_name
, (char *) NULL
);
3601 /* This is the 32-bit CRC function used by the GNU separate debug
3602 facility. An executable may contain a section named
3603 .gnu_debuglink, which holds the name of a separate executable file
3604 containing its debug info, and a checksum of that file's contents,
3605 computed using this function. */
3607 gnu_debuglink_crc32 (unsigned long crc
, unsigned char *buf
, size_t len
)
3609 static const unsigned int crc32_table
[256] = {
3610 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
3611 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
3612 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
3613 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
3614 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
3615 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
3616 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
3617 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
3618 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
3619 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
3620 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
3621 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
3622 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
3623 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
3624 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
3625 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
3626 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
3627 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
3628 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
3629 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
3630 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
3631 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
3632 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
3633 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
3634 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
3635 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
3636 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
3637 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
3638 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
3639 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
3640 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
3641 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
3642 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
3643 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
3644 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
3645 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
3646 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
3647 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
3648 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
3649 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
3650 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
3651 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
3652 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
3653 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
3654 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
3655 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
3656 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
3657 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
3658 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
3659 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
3660 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
3665 crc
= ~crc
& 0xffffffff;
3666 for (end
= buf
+ len
; buf
< end
; ++buf
)
3667 crc
= crc32_table
[(crc
^ *buf
) & 0xff] ^ (crc
>> 8);
3668 return ~crc
& 0xffffffff;;
3672 align_up (ULONGEST v
, int n
)
3674 /* Check that N is really a power of two. */
3675 gdb_assert (n
&& (n
& (n
-1)) == 0);
3676 return (v
+ n
- 1) & -n
;
3680 align_down (ULONGEST v
, int n
)
3682 /* Check that N is really a power of two. */
3683 gdb_assert (n
&& (n
& (n
-1)) == 0);
3687 /* Allocation function for the libiberty hash table which uses an
3688 obstack. The obstack is passed as DATA. */
3691 hashtab_obstack_allocate (void *data
, size_t size
, size_t count
)
3693 unsigned int total
= size
* count
;
3694 void *ptr
= obstack_alloc ((struct obstack
*) data
, total
);
3696 memset (ptr
, 0, total
);
3700 /* Trivial deallocation function for the libiberty splay tree and hash
3701 table - don't deallocate anything. Rely on later deletion of the
3702 obstack. DATA will be the obstack, although it is not needed
3706 dummy_obstack_deallocate (void *object
, void *data
)
3711 /* The bit offset of the highest byte in a ULONGEST, for overflow
3714 #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT)
3716 /* True (non-zero) iff DIGIT is a valid digit in radix BASE,
3717 where 2 <= BASE <= 36. */
3720 is_digit_in_base (unsigned char digit
, int base
)
3722 if (!isalnum (digit
))
3725 return (isdigit (digit
) && digit
< base
+ '0');
3727 return (isdigit (digit
) || tolower (digit
) < base
- 10 + 'a');
3731 digit_to_int (unsigned char c
)
3736 return tolower (c
) - 'a' + 10;
3739 /* As for strtoul, but for ULONGEST results. */
3742 strtoulst (const char *num
, const char **trailer
, int base
)
3744 unsigned int high_part
;
3749 /* Skip leading whitespace. */
3750 while (isspace (num
[i
]))
3753 /* Handle prefixes. */
3756 else if (num
[i
] == '-')
3762 if (base
== 0 || base
== 16)
3764 if (num
[i
] == '0' && (num
[i
+ 1] == 'x' || num
[i
+ 1] == 'X'))
3772 if (base
== 0 && num
[i
] == '0')
3778 if (base
< 2 || base
> 36)
3784 result
= high_part
= 0;
3785 for (; is_digit_in_base (num
[i
], base
); i
+= 1)
3787 result
= result
* base
+ digit_to_int (num
[i
]);
3788 high_part
= high_part
* base
+ (unsigned int) (result
>> HIGH_BYTE_POSN
);
3789 result
&= ((ULONGEST
) 1 << HIGH_BYTE_POSN
) - 1;
3790 if (high_part
> 0xff)
3793 result
= ~ (ULONGEST
) 0;
3800 if (trailer
!= NULL
)
3803 result
= result
+ ((ULONGEST
) high_part
<< HIGH_BYTE_POSN
);
3810 /* Simple, portable version of dirname that does not modify its
3814 ldirname (const char *filename
)
3816 const char *base
= lbasename (filename
);
3819 while (base
> filename
&& IS_DIR_SEPARATOR (base
[-1]))
3822 if (base
== filename
)
3825 dirname
= xmalloc (base
- filename
+ 2);
3826 memcpy (dirname
, filename
, base
- filename
);
3828 /* On DOS based file systems, convert "d:foo" to "d:.", so that we
3829 create "d:./bar" later instead of the (different) "d:/bar". */
3830 if (base
- filename
== 2 && IS_ABSOLUTE_PATH (base
)
3831 && !IS_DIR_SEPARATOR (filename
[0]))
3832 dirname
[base
++ - filename
] = '.';
3834 dirname
[base
- filename
] = '\0';
3838 /* Call libiberty's buildargv, and return the result.
3839 If buildargv fails due to out-of-memory, call nomem.
3840 Therefore, the returned value is guaranteed to be non-NULL,
3841 unless the parameter itself is NULL. */
3844 gdb_buildargv (const char *s
)
3846 char **argv
= buildargv (s
);
3848 if (s
!= NULL
&& argv
== NULL
)
3854 compare_positive_ints (const void *ap
, const void *bp
)
3856 /* Because we know we're comparing two ints which are positive,
3857 there's no danger of overflow here. */
3858 return * (int *) ap
- * (int *) bp
;
3861 #define AMBIGUOUS_MESS1 ".\nMatching formats:"
3862 #define AMBIGUOUS_MESS2 ".\nUse \"set gnutarget format-name\" to specify the format."
3865 gdb_bfd_errmsg (bfd_error_type error_tag
, char **matching
)
3871 /* Check if errmsg just need simple return. */
3872 if (error_tag
!= bfd_error_file_ambiguously_recognized
|| matching
== NULL
)
3873 return bfd_errmsg (error_tag
);
3875 ret_len
= strlen (bfd_errmsg (error_tag
)) + strlen (AMBIGUOUS_MESS1
)
3876 + strlen (AMBIGUOUS_MESS2
);
3877 for (p
= matching
; *p
; p
++)
3878 ret_len
+= strlen (*p
) + 1;
3879 ret
= xmalloc (ret_len
+ 1);
3881 make_cleanup (xfree
, ret
);
3883 strcpy (retp
, bfd_errmsg (error_tag
));
3884 retp
+= strlen (retp
);
3886 strcpy (retp
, AMBIGUOUS_MESS1
);
3887 retp
+= strlen (retp
);
3889 for (p
= matching
; *p
; p
++)
3891 sprintf (retp
, " %s", *p
);
3892 retp
+= strlen (retp
);
3896 strcpy (retp
, AMBIGUOUS_MESS2
);
3901 /* Return ARGS parsed as a valid pid, or throw an error. */
3904 parse_pid_to_attach (char *args
)
3910 error_no_arg (_("process-id to attach"));
3913 pid
= strtoul (args
, &dummy
, 0);
3914 /* Some targets don't set errno on errors, grrr! */
3915 if ((pid
== 0 && dummy
== args
) || dummy
!= &args
[strlen (args
)])
3916 error (_("Illegal process-id: %s."), args
);
3921 /* Provide a prototype to silence -Wmissing-prototypes. */
3922 extern initialize_file_ftype _initialize_utils
;
3925 _initialize_utils (void)
3927 add_internal_problem_command (&internal_error_problem
);
3928 add_internal_problem_command (&internal_warning_problem
);