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
343 make_cleanup_restore_integer (int *variable
)
345 struct restore_integer_closure
*c
=
346 xmalloc (sizeof (struct restore_integer_closure
));
348 c
->variable
= variable
;
349 c
->value
= *variable
;
351 return make_my_cleanup2 (&cleanup_chain
, restore_integer
, (void *)c
,
355 /* Helper for make_cleanup_unpush_target. */
358 do_unpush_target (void *arg
)
360 struct target_ops
*ops
= arg
;
365 /* Return a new cleanup that unpushes OPS. */
368 make_cleanup_unpush_target (struct target_ops
*ops
)
370 return make_my_cleanup (&cleanup_chain
, do_unpush_target
, ops
);
374 make_my_cleanup2 (struct cleanup
**pmy_chain
, make_cleanup_ftype
*function
,
375 void *arg
, void (*free_arg
) (void *))
378 = (struct cleanup
*) xmalloc (sizeof (struct cleanup
));
379 struct cleanup
*old_chain
= *pmy_chain
;
381 new->next
= *pmy_chain
;
382 new->function
= function
;
383 new->free_arg
= free_arg
;
391 make_my_cleanup (struct cleanup
**pmy_chain
, make_cleanup_ftype
*function
,
394 return make_my_cleanup2 (pmy_chain
, function
, arg
, NULL
);
397 /* Discard cleanups and do the actions they describe
398 until we get back to the point OLD_CHAIN in the cleanup_chain. */
401 do_cleanups (struct cleanup
*old_chain
)
403 do_my_cleanups (&cleanup_chain
, old_chain
);
407 do_final_cleanups (struct cleanup
*old_chain
)
409 do_my_cleanups (&final_cleanup_chain
, old_chain
);
413 do_my_cleanups (struct cleanup
**pmy_chain
,
414 struct cleanup
*old_chain
)
418 while ((ptr
= *pmy_chain
) != old_chain
)
420 *pmy_chain
= ptr
->next
; /* Do this first incase recursion */
421 (*ptr
->function
) (ptr
->arg
);
423 (*ptr
->free_arg
) (ptr
->arg
);
428 /* Discard cleanups, not doing the actions they describe,
429 until we get back to the point OLD_CHAIN in the cleanup_chain. */
432 discard_cleanups (struct cleanup
*old_chain
)
434 discard_my_cleanups (&cleanup_chain
, old_chain
);
438 discard_final_cleanups (struct cleanup
*old_chain
)
440 discard_my_cleanups (&final_cleanup_chain
, old_chain
);
444 discard_my_cleanups (struct cleanup
**pmy_chain
,
445 struct cleanup
*old_chain
)
449 while ((ptr
= *pmy_chain
) != old_chain
)
451 *pmy_chain
= ptr
->next
;
453 (*ptr
->free_arg
) (ptr
->arg
);
458 /* Set the cleanup_chain to 0, and return the old cleanup chain. */
462 return save_my_cleanups (&cleanup_chain
);
466 save_final_cleanups (void)
468 return save_my_cleanups (&final_cleanup_chain
);
472 save_my_cleanups (struct cleanup
**pmy_chain
)
474 struct cleanup
*old_chain
= *pmy_chain
;
480 /* Restore the cleanup chain from a previously saved chain. */
482 restore_cleanups (struct cleanup
*chain
)
484 restore_my_cleanups (&cleanup_chain
, chain
);
488 restore_final_cleanups (struct cleanup
*chain
)
490 restore_my_cleanups (&final_cleanup_chain
, chain
);
494 restore_my_cleanups (struct cleanup
**pmy_chain
, struct cleanup
*chain
)
499 /* This function is useful for cleanups.
503 old_chain = make_cleanup (free_current_contents, &foo);
505 to arrange to free the object thus allocated. */
508 free_current_contents (void *ptr
)
510 void **location
= ptr
;
512 if (location
== NULL
)
513 internal_error (__FILE__
, __LINE__
,
514 _("free_current_contents: NULL pointer"));
515 if (*location
!= NULL
)
522 /* Provide a known function that does nothing, to use as a base for
523 for a possibly long chain of cleanups. This is useful where we
524 use the cleanup chain for handling normal cleanups as well as dealing
525 with cleanups that need to be done as a result of a call to error().
526 In such cases, we may not be certain where the first cleanup is, unless
527 we have a do-nothing one to always use as the base. */
530 null_cleanup (void *arg
)
534 /* If nonzero, display time usage both at startup and for each command. */
536 static int display_time
;
538 /* If nonzero, display space usage both at startup and for each command. */
540 static int display_space
;
542 /* Records a run time and space usage to be used as a base for
543 reporting elapsed time or change in space. In addition,
544 the msg_type field indicates whether the saved time is from the
545 beginning of GDB execution (0) or the beginning of an individual
546 command execution (1). */
554 /* Set whether to display time statistics to NEW_VALUE (non-zero
557 set_display_time (int new_value
)
559 display_time
= new_value
;
562 /* Set whether to display space statistics to NEW_VALUE (non-zero
565 set_display_space (int new_value
)
567 display_space
= new_value
;
570 /* As indicated by display_time and display_space, report GDB's elapsed time
571 and space usage from the base time and space provided in ARG, which
572 must be a pointer to a struct cmd_stat. This function is intended
573 to be called as a cleanup. */
575 report_command_stats (void *arg
)
577 struct cmd_stats
*start_stats
= (struct cmd_stats
*) arg
;
578 int msg_type
= start_stats
->msg_type
;
582 long cmd_time
= get_run_time () - start_stats
->start_time
;
584 printf_unfiltered (msg_type
== 0
585 ? _("Startup time: %ld.%06ld\n")
586 : _("Command execution time: %ld.%06ld\n"),
587 cmd_time
/ 1000000, cmd_time
% 1000000);
593 char *lim
= (char *) sbrk (0);
595 long space_now
= lim
- lim_at_start
;
596 long space_diff
= space_now
- start_stats
->start_space
;
598 printf_unfiltered (msg_type
== 0
599 ? _("Space used: %ld (%c%ld during startup)\n")
600 : _("Space used: %ld (%c%ld for this command)\n"),
602 (space_diff
>= 0 ? '+' : '-'),
608 /* Create a cleanup that reports time and space used since its
609 creation. Precise messages depend on MSG_TYPE:
610 0: Initial time/space
611 1: Individual command time/space. */
613 make_command_stats_cleanup (int msg_type
)
615 struct cmd_stats
*new_stat
= XMALLOC (struct cmd_stats
);
618 char *lim
= (char *) sbrk (0);
619 new_stat
->start_space
= lim
- lim_at_start
;
622 new_stat
->msg_type
= msg_type
;
623 new_stat
->start_time
= get_run_time ();
625 return make_cleanup_dtor (report_command_stats
, new_stat
, xfree
);
628 /* Continuations are implemented as cleanups internally. Inherit from
635 /* Add a continuation to the continuation list of THREAD. The new
636 continuation will be added at the front. */
638 add_continuation (struct thread_info
*thread
,
639 void (*continuation_hook
) (void *), void *args
,
640 void (*continuation_free_args
) (void *))
642 struct cleanup
*as_cleanup
= &thread
->continuations
->base
;
643 make_cleanup_ftype
*continuation_hook_fn
= continuation_hook
;
645 make_my_cleanup2 (&as_cleanup
,
646 continuation_hook_fn
,
648 continuation_free_args
);
650 thread
->continuations
= (struct continuation
*) as_cleanup
;
653 /* Add a continuation to the continuation list of INFERIOR. The new
654 continuation will be added at the front. */
657 add_inferior_continuation (void (*continuation_hook
) (void *), void *args
,
658 void (*continuation_free_args
) (void *))
660 struct inferior
*inf
= current_inferior ();
661 struct cleanup
*as_cleanup
= &inf
->continuations
->base
;
662 make_cleanup_ftype
*continuation_hook_fn
= continuation_hook
;
664 make_my_cleanup2 (&as_cleanup
,
665 continuation_hook_fn
,
667 continuation_free_args
);
669 inf
->continuations
= (struct continuation
*) as_cleanup
;
672 /* Do all continuations of the current inferior. */
675 do_all_inferior_continuations (void)
677 struct cleanup
*as_cleanup
;
678 struct inferior
*inf
= current_inferior ();
680 if (inf
->continuations
== NULL
)
683 /* Copy the list header into another pointer, and set the global
684 list header to null, so that the global list can change as a side
685 effect of invoking the continuations and the processing of the
686 preexisting continuations will not be affected. */
688 as_cleanup
= &inf
->continuations
->base
;
689 inf
->continuations
= NULL
;
691 /* Work now on the list we have set aside. */
692 do_my_cleanups (&as_cleanup
, NULL
);
695 /* Get rid of all the inferior-wide continuations of INF. */
698 discard_all_inferior_continuations (struct inferior
*inf
)
700 struct cleanup
*continuation_ptr
= &inf
->continuations
->base
;
702 discard_my_cleanups (&continuation_ptr
, NULL
);
703 inf
->continuations
= NULL
;
707 restore_thread_cleanup (void *arg
)
709 ptid_t
*ptid_p
= arg
;
711 switch_to_thread (*ptid_p
);
714 /* Walk down the continuation list of PTID, and execute all the
715 continuations. There is a problem though. In some cases new
716 continuations may be added while we are in the middle of this loop.
717 If this happens they will be added in the front, and done before we
718 have a chance of exhausting those that were already there. We need
719 to then save the beginning of the list in a pointer and do the
720 continuations from there on, instead of using the global beginning
721 of list as our iteration pointer. */
723 do_all_continuations_ptid (ptid_t ptid
,
724 struct continuation
**continuations_p
)
726 struct cleanup
*old_chain
;
727 ptid_t current_thread
;
728 struct cleanup
*as_cleanup
;
730 if (*continuations_p
== NULL
)
733 current_thread
= inferior_ptid
;
735 /* Restore selected thread on exit. Don't try to restore the frame
738 - When running continuations, the selected frame is always #0.
740 - The continuations may trigger symbol file loads, which may
741 change the frame layout (frame ids change), which would trigger
742 a warning if we used make_cleanup_restore_current_thread. */
744 old_chain
= make_cleanup (restore_thread_cleanup
, ¤t_thread
);
746 /* Let the continuation see this thread as selected. */
747 switch_to_thread (ptid
);
749 /* Copy the list header into another pointer, and set the global
750 list header to null, so that the global list can change as a side
751 effect of invoking the continuations and the processing of the
752 preexisting continuations will not be affected. */
754 as_cleanup
= &(*continuations_p
)->base
;
755 *continuations_p
= NULL
;
757 /* Work now on the list we have set aside. */
758 do_my_cleanups (&as_cleanup
, NULL
);
760 do_cleanups (old_chain
);
763 /* Callback for iterate over threads. */
765 do_all_continuations_thread_callback (struct thread_info
*thread
, void *data
)
767 do_all_continuations_ptid (thread
->ptid
, &thread
->continuations
);
771 /* Do all continuations of thread THREAD. */
773 do_all_continuations_thread (struct thread_info
*thread
)
775 do_all_continuations_thread_callback (thread
, NULL
);
778 /* Do all continuations of all threads. */
780 do_all_continuations (void)
782 iterate_over_threads (do_all_continuations_thread_callback
, NULL
);
785 /* Callback for iterate over threads. */
787 discard_all_continuations_thread_callback (struct thread_info
*thread
,
790 struct cleanup
*continuation_ptr
= &thread
->continuations
->base
;
792 discard_my_cleanups (&continuation_ptr
, NULL
);
793 thread
->continuations
= NULL
;
797 /* Get rid of all the continuations of THREAD. */
799 discard_all_continuations_thread (struct thread_info
*thread
)
801 discard_all_continuations_thread_callback (thread
, NULL
);
804 /* Get rid of all the continuations of all threads. */
806 discard_all_continuations (void)
808 iterate_over_threads (discard_all_continuations_thread_callback
, NULL
);
812 /* Add a continuation to the intermediate continuation list of THREAD.
813 The new continuation will be added at the front. */
815 add_intermediate_continuation (struct thread_info
*thread
,
816 void (*continuation_hook
)
817 (void *), void *args
,
818 void (*continuation_free_args
) (void *))
820 struct cleanup
*as_cleanup
= &thread
->intermediate_continuations
->base
;
821 make_cleanup_ftype
*continuation_hook_fn
= continuation_hook
;
823 make_my_cleanup2 (&as_cleanup
,
824 continuation_hook_fn
,
826 continuation_free_args
);
828 thread
->intermediate_continuations
= (struct continuation
*) as_cleanup
;
831 /* Walk down the cmd_continuation list, and execute all the
832 continuations. There is a problem though. In some cases new
833 continuations may be added while we are in the middle of this
834 loop. If this happens they will be added in the front, and done
835 before we have a chance of exhausting those that were already
836 there. We need to then save the beginning of the list in a pointer
837 and do the continuations from there on, instead of using the
838 global beginning of list as our iteration pointer.*/
840 do_all_intermediate_continuations_thread_callback (struct thread_info
*thread
,
843 do_all_continuations_ptid (thread
->ptid
,
844 &thread
->intermediate_continuations
);
848 /* Do all intermediate continuations of thread THREAD. */
850 do_all_intermediate_continuations_thread (struct thread_info
*thread
)
852 do_all_intermediate_continuations_thread_callback (thread
, NULL
);
855 /* Do all intermediate continuations of all threads. */
857 do_all_intermediate_continuations (void)
859 iterate_over_threads (do_all_intermediate_continuations_thread_callback
, NULL
);
862 /* Callback for iterate over threads. */
864 discard_all_intermediate_continuations_thread_callback (struct thread_info
*thread
,
867 struct cleanup
*continuation_ptr
= &thread
->intermediate_continuations
->base
;
869 discard_my_cleanups (&continuation_ptr
, NULL
);
870 thread
->intermediate_continuations
= NULL
;
874 /* Get rid of all the intermediate continuations of THREAD. */
876 discard_all_intermediate_continuations_thread (struct thread_info
*thread
)
878 discard_all_intermediate_continuations_thread_callback (thread
, NULL
);
881 /* Get rid of all the intermediate continuations of all threads. */
883 discard_all_intermediate_continuations (void)
885 iterate_over_threads (discard_all_intermediate_continuations_thread_callback
, NULL
);
890 /* Print a warning message. The first argument STRING is the warning
891 message, used as an fprintf format string, the second is the
892 va_list of arguments for that string. A warning is unfiltered (not
893 paginated) so that the user does not need to page through each
894 screen full of warnings when there are lots of them. */
897 vwarning (const char *string
, va_list args
)
899 if (deprecated_warning_hook
)
900 (*deprecated_warning_hook
) (string
, args
);
903 target_terminal_ours ();
904 wrap_here (""); /* Force out any buffered output */
905 gdb_flush (gdb_stdout
);
906 if (warning_pre_print
)
907 fputs_unfiltered (warning_pre_print
, gdb_stderr
);
908 vfprintf_unfiltered (gdb_stderr
, string
, args
);
909 fprintf_unfiltered (gdb_stderr
, "\n");
914 /* Print a warning message.
915 The first argument STRING is the warning message, used as a fprintf string,
916 and the remaining args are passed as arguments to it.
917 The primary difference between warnings and errors is that a warning
918 does not force the return to command level. */
921 warning (const char *string
, ...)
925 va_start (args
, string
);
926 vwarning (string
, args
);
930 /* Print an error message and return to command level.
931 The first argument STRING is the error message, used as a fprintf string,
932 and the remaining args are passed as arguments to it. */
935 verror (const char *string
, va_list args
)
937 throw_verror (GENERIC_ERROR
, string
, args
);
941 error (const char *string
, ...)
945 va_start (args
, string
);
946 throw_verror (GENERIC_ERROR
, string
, args
);
950 /* Print an error message and quit.
951 The first argument STRING is the error message, used as a fprintf string,
952 and the remaining args are passed as arguments to it. */
955 vfatal (const char *string
, va_list args
)
957 throw_vfatal (string
, args
);
961 fatal (const char *string
, ...)
965 va_start (args
, string
);
966 throw_vfatal (string
, args
);
971 error_stream (struct ui_file
*stream
)
973 char *message
= ui_file_xstrdup (stream
, NULL
);
975 make_cleanup (xfree
, message
);
976 error (("%s"), message
);
979 /* Dump core trying to increase the core soft limit to hard limit first. */
984 #ifdef HAVE_SETRLIMIT
985 struct rlimit rlim
= { RLIM_INFINITY
, RLIM_INFINITY
};
987 setrlimit (RLIMIT_CORE
, &rlim
);
988 #endif /* HAVE_SETRLIMIT */
990 abort (); /* NOTE: GDB has only three calls to abort(). */
993 /* Check whether GDB will be able to dump core using the dump_core function. */
996 can_dump_core (const char *reason
)
998 #ifdef HAVE_GETRLIMIT
1001 /* Be quiet and assume we can dump if an error is returned. */
1002 if (getrlimit (RLIMIT_CORE
, &rlim
) != 0)
1005 if (rlim
.rlim_max
== 0)
1007 fprintf_unfiltered (gdb_stderr
,
1008 _("%s\nUnable to dump core, use `ulimit -c unlimited'"
1009 " before executing GDB next time.\n"), reason
);
1012 #endif /* HAVE_GETRLIMIT */
1017 /* Allow the user to configure the debugger behavior with respect to
1018 what to do when an internal problem is detected. */
1020 const char internal_problem_ask
[] = "ask";
1021 const char internal_problem_yes
[] = "yes";
1022 const char internal_problem_no
[] = "no";
1023 static const char *internal_problem_modes
[] =
1025 internal_problem_ask
,
1026 internal_problem_yes
,
1027 internal_problem_no
,
1031 /* Print a message reporting an internal error/warning. Ask the user
1032 if they want to continue, dump core, or just exit. Return
1033 something to indicate a quit. */
1035 struct internal_problem
1038 const char *should_quit
;
1039 const char *should_dump_core
;
1042 /* Report a problem, internal to GDB, to the user. Once the problem
1043 has been reported, and assuming GDB didn't quit, the caller can
1044 either allow execution to resume or throw an error. */
1046 static void ATTRIBUTE_PRINTF (4, 0)
1047 internal_vproblem (struct internal_problem
*problem
,
1048 const char *file
, int line
, const char *fmt
, va_list ap
)
1055 /* Don't allow infinite error/warning recursion. */
1057 static char msg
[] = "Recursive internal problem.\n";
1066 fputs_unfiltered (msg
, gdb_stderr
);
1067 abort (); /* NOTE: GDB has only three calls to abort(). */
1070 /* Newer GLIBC versions put the warn_unused_result attribute
1071 on write, but this is one of those rare cases where
1072 ignoring the return value is correct. Casting to (void)
1073 does not fix this problem. This is the solution suggested
1074 at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */
1075 if (write (STDERR_FILENO
, msg
, sizeof (msg
)) != sizeof (msg
))
1076 abort (); /* NOTE: GDB has only three calls to abort(). */
1081 /* Try to get the message out and at the start of a new line. */
1082 target_terminal_ours ();
1085 /* Create a string containing the full error/warning message. Need
1086 to call query with this full string, as otherwize the reason
1087 (error/warning) and question become separated. Format using a
1088 style similar to a compiler error message. Include extra detail
1089 so that the user knows that they are living on the edge. */
1093 msg
= xstrvprintf (fmt
, ap
);
1094 reason
= xstrprintf ("\
1096 A problem internal to GDB has been detected,\n\
1097 further debugging may prove unreliable.", file
, line
, problem
->name
, msg
);
1099 make_cleanup (xfree
, reason
);
1102 if (problem
->should_quit
== internal_problem_ask
)
1104 /* Default (yes/batch case) is to quit GDB. When in batch mode
1105 this lessens the likelihood of GDB going into an infinite
1109 /* Emit the message and quit. */
1110 fputs_unfiltered (reason
, gdb_stderr
);
1111 fputs_unfiltered ("\n", gdb_stderr
);
1115 quit_p
= query (_("%s\nQuit this debugging session? "), reason
);
1117 else if (problem
->should_quit
== internal_problem_yes
)
1119 else if (problem
->should_quit
== internal_problem_no
)
1122 internal_error (__FILE__
, __LINE__
, _("bad switch"));
1124 if (problem
->should_dump_core
== internal_problem_ask
)
1126 if (!can_dump_core (reason
))
1130 /* Default (yes/batch case) is to dump core. This leaves a GDB
1131 `dropping' so that it is easier to see that something went
1133 dump_core_p
= query (_("%s\nCreate a core file of GDB? "), reason
);
1136 else if (problem
->should_dump_core
== internal_problem_yes
)
1137 dump_core_p
= can_dump_core (reason
);
1138 else if (problem
->should_dump_core
== internal_problem_no
)
1141 internal_error (__FILE__
, __LINE__
, _("bad switch"));
1154 #ifdef HAVE_WORKING_FORK
1164 static struct internal_problem internal_error_problem
= {
1165 "internal-error", internal_problem_ask
, internal_problem_ask
1169 internal_verror (const char *file
, int line
, const char *fmt
, va_list ap
)
1171 internal_vproblem (&internal_error_problem
, file
, line
, fmt
, ap
);
1172 deprecated_throw_reason (RETURN_ERROR
);
1176 internal_error (const char *file
, int line
, const char *string
, ...)
1180 va_start (ap
, string
);
1181 internal_verror (file
, line
, string
, ap
);
1185 static struct internal_problem internal_warning_problem
= {
1186 "internal-warning", internal_problem_ask
, internal_problem_ask
1190 internal_vwarning (const char *file
, int line
, const char *fmt
, va_list ap
)
1192 internal_vproblem (&internal_warning_problem
, file
, line
, fmt
, ap
);
1196 internal_warning (const char *file
, int line
, const char *string
, ...)
1200 va_start (ap
, string
);
1201 internal_vwarning (file
, line
, string
, ap
);
1205 /* Dummy functions to keep add_prefix_cmd happy. */
1208 set_internal_problem_cmd (char *args
, int from_tty
)
1213 show_internal_problem_cmd (char *args
, int from_tty
)
1217 /* When GDB reports an internal problem (error or warning) it gives
1218 the user the opportunity to quit GDB and/or create a core file of
1219 the current debug session. This function registers a few commands
1220 that make it possible to specify that GDB should always or never
1221 quit or create a core file, without asking. The commands look
1224 maint set PROBLEM-NAME quit ask|yes|no
1225 maint show PROBLEM-NAME quit
1226 maint set PROBLEM-NAME corefile ask|yes|no
1227 maint show PROBLEM-NAME corefile
1229 Where PROBLEM-NAME is currently "internal-error" or
1230 "internal-warning". */
1233 add_internal_problem_command (struct internal_problem
*problem
)
1235 struct cmd_list_element
**set_cmd_list
;
1236 struct cmd_list_element
**show_cmd_list
;
1240 set_cmd_list
= xmalloc (sizeof (*set_cmd_list
));
1241 show_cmd_list
= xmalloc (sizeof (*set_cmd_list
));
1242 *set_cmd_list
= NULL
;
1243 *show_cmd_list
= NULL
;
1245 set_doc
= xstrprintf (_("Configure what GDB does when %s is detected."),
1248 show_doc
= xstrprintf (_("Show what GDB does when %s is detected."),
1251 add_prefix_cmd ((char*) problem
->name
,
1252 class_maintenance
, set_internal_problem_cmd
, set_doc
,
1254 concat ("maintenance set ", problem
->name
, " ",
1256 0/*allow-unknown*/, &maintenance_set_cmdlist
);
1258 add_prefix_cmd ((char*) problem
->name
,
1259 class_maintenance
, show_internal_problem_cmd
, show_doc
,
1261 concat ("maintenance show ", problem
->name
, " ",
1263 0/*allow-unknown*/, &maintenance_show_cmdlist
);
1265 set_doc
= xstrprintf (_("\
1266 Set whether GDB should quit when an %s is detected"),
1268 show_doc
= xstrprintf (_("\
1269 Show whether GDB will quit when an %s is detected"),
1271 add_setshow_enum_cmd ("quit", class_maintenance
,
1272 internal_problem_modes
,
1273 &problem
->should_quit
,
1276 NULL
, /* help_doc */
1278 NULL
, /* showfunc */
1285 set_doc
= xstrprintf (_("\
1286 Set whether GDB should create a core file of GDB when %s is detected"),
1288 show_doc
= xstrprintf (_("\
1289 Show whether GDB will create a core file of GDB when %s is detected"),
1291 add_setshow_enum_cmd ("corefile", class_maintenance
,
1292 internal_problem_modes
,
1293 &problem
->should_dump_core
,
1296 NULL
, /* help_doc */
1298 NULL
, /* showfunc */
1306 /* Print the system error message for errno, and also mention STRING
1307 as the file name for which the error was encountered.
1308 Then return to command level. */
1311 perror_with_name (const char *string
)
1316 err
= safe_strerror (errno
);
1317 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
1318 strcpy (combined
, string
);
1319 strcat (combined
, ": ");
1320 strcat (combined
, err
);
1322 /* I understand setting these is a matter of taste. Still, some people
1323 may clear errno but not know about bfd_error. Doing this here is not
1325 bfd_set_error (bfd_error_no_error
);
1328 error (_("%s."), combined
);
1331 /* Print the system error message for ERRCODE, and also mention STRING
1332 as the file name for which the error was encountered. */
1335 print_sys_errmsg (const char *string
, int errcode
)
1340 err
= safe_strerror (errcode
);
1341 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
1342 strcpy (combined
, string
);
1343 strcat (combined
, ": ");
1344 strcat (combined
, err
);
1346 /* We want anything which was printed on stdout to come out first, before
1348 gdb_flush (gdb_stdout
);
1349 fprintf_unfiltered (gdb_stderr
, "%s.\n", combined
);
1352 /* Control C eventually causes this to be called, at a convenient time. */
1358 /* No steenking SIGINT will ever be coming our way when the
1359 program is resumed. Don't lie. */
1363 /* If there is no terminal switching for this target, then we can't
1364 possibly get screwed by the lack of job control. */
1365 || current_target
.to_terminal_ours
== NULL
)
1368 fatal ("Quit (expect signal SIGINT when the program is resumed)");
1373 /* Called when a memory allocation fails, with the number of bytes of
1374 memory requested in SIZE. */
1381 internal_error (__FILE__
, __LINE__
,
1382 _("virtual memory exhausted: can't allocate %ld bytes."),
1387 internal_error (__FILE__
, __LINE__
, _("virtual memory exhausted."));
1391 /* The xmalloc() (libiberty.h) family of memory management routines.
1393 These are like the ISO-C malloc() family except that they implement
1394 consistent semantics and guard against typical memory management
1397 /* NOTE: These are declared using PTR to ensure consistency with
1398 "libiberty.h". xfree() is GDB local. */
1401 xmalloc (size_t size
)
1405 /* See libiberty/xmalloc.c. This function need's to match that's
1406 semantics. It never returns NULL. */
1410 val
= malloc (size
); /* ARI: malloc */
1418 xzalloc (size_t size
)
1420 return xcalloc (1, size
);
1424 xrealloc (PTR ptr
, size_t size
) /* ARI: PTR */
1428 /* See libiberty/xmalloc.c. This function need's to match that's
1429 semantics. It never returns NULL. */
1434 val
= realloc (ptr
, size
); /* ARI: realloc */
1436 val
= malloc (size
); /* ARI: malloc */
1444 xcalloc (size_t number
, size_t size
)
1448 /* See libiberty/xmalloc.c. This function need's to match that's
1449 semantics. It never returns NULL. */
1450 if (number
== 0 || size
== 0)
1456 mem
= calloc (number
, size
); /* ARI: xcalloc */
1458 nomem (number
* size
);
1467 free (ptr
); /* ARI: free */
1471 /* Like asprintf/vasprintf but get an internal_error if the call
1475 xstrprintf (const char *format
, ...)
1480 va_start (args
, format
);
1481 ret
= xstrvprintf (format
, args
);
1487 xasprintf (char **ret
, const char *format
, ...)
1491 va_start (args
, format
);
1492 (*ret
) = xstrvprintf (format
, args
);
1497 xvasprintf (char **ret
, const char *format
, va_list ap
)
1499 (*ret
) = xstrvprintf (format
, ap
);
1503 xstrvprintf (const char *format
, va_list ap
)
1506 int status
= vasprintf (&ret
, format
, ap
);
1508 /* NULL is returned when there was a memory allocation problem, or
1509 any other error (for instance, a bad format string). A negative
1510 status (the printed length) with a non-NULL buffer should never
1511 happen, but just to be sure. */
1512 if (ret
== NULL
|| status
< 0)
1513 internal_error (__FILE__
, __LINE__
, _("vasprintf call failed"));
1518 xsnprintf (char *str
, size_t size
, const char *format
, ...)
1523 va_start (args
, format
);
1524 ret
= vsnprintf (str
, size
, format
, args
);
1525 gdb_assert (ret
< size
);
1531 /* My replacement for the read system call.
1532 Used like `read' but keeps going if `read' returns too soon. */
1535 myread (int desc
, char *addr
, int len
)
1542 val
= read (desc
, addr
, len
);
1546 return orglen
- len
;
1553 /* Make a copy of the string at PTR with SIZE characters
1554 (and add a null character at the end in the copy).
1555 Uses malloc to get the space. Returns the address of the copy. */
1558 savestring (const char *ptr
, size_t size
)
1560 char *p
= (char *) xmalloc (size
+ 1);
1562 memcpy (p
, ptr
, size
);
1568 print_spaces (int n
, struct ui_file
*file
)
1570 fputs_unfiltered (n_spaces (n
), file
);
1573 /* Print a host address. */
1576 gdb_print_host_address (const void *addr
, struct ui_file
*stream
)
1578 fprintf_filtered (stream
, "%s", host_address_to_string (addr
));
1582 /* This function supports the query, nquery, and yquery functions.
1583 Ask user a y-or-n question and return 0 if answer is no, 1 if
1584 answer is yes, or default the answer to the specified default
1585 (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a
1586 default answer, or '\0' for no default.
1587 CTLSTR is the control string and should end in "? ". It should
1588 not say how to answer, because we do that.
1589 ARGS are the arguments passed along with the CTLSTR argument to
1592 static int ATTRIBUTE_PRINTF (1, 0)
1593 defaulted_query (const char *ctlstr
, const char defchar
, va_list args
)
1599 char def_answer
, not_def_answer
;
1600 char *y_string
, *n_string
, *question
;
1602 /* Set up according to which answer is the default. */
1603 if (defchar
== '\0')
1607 not_def_answer
= 'N';
1611 else if (defchar
== 'y')
1615 not_def_answer
= 'N';
1623 not_def_answer
= 'Y';
1628 /* Automatically answer the default value if the user did not want
1629 prompts or the command was issued with the server prefix. */
1630 if (! caution
|| server_command
)
1633 /* If input isn't coming from the user directly, just say what
1634 question we're asking, and then answer the default automatically. This
1635 way, important error messages don't get lost when talking to GDB
1637 if (batch_flag
|| ! input_from_terminal_p ())
1640 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1642 printf_filtered (_("(%s or %s) [answered %c; input not from terminal]\n"),
1643 y_string
, n_string
, def_answer
);
1644 gdb_flush (gdb_stdout
);
1649 if (deprecated_query_hook
)
1651 return deprecated_query_hook (ctlstr
, args
);
1654 /* Format the question outside of the loop, to avoid reusing args. */
1655 question
= xstrvprintf (ctlstr
, args
);
1659 wrap_here (""); /* Flush any buffered output */
1660 gdb_flush (gdb_stdout
);
1662 if (annotation_level
> 1)
1663 printf_filtered (("\n\032\032pre-query\n"));
1665 fputs_filtered (question
, gdb_stdout
);
1666 printf_filtered (_("(%s or %s) "), y_string
, n_string
);
1668 if (annotation_level
> 1)
1669 printf_filtered (("\n\032\032query\n"));
1672 gdb_flush (gdb_stdout
);
1674 answer
= fgetc (stdin
);
1676 /* We expect fgetc to block until a character is read. But
1677 this may not be the case if the terminal was opened with
1678 the NONBLOCK flag. In that case, if there is nothing to
1679 read on stdin, fgetc returns EOF, but also sets the error
1680 condition flag on stdin and errno to EAGAIN. With a true
1681 EOF, stdin's error condition flag is not set.
1683 A situation where this behavior was observed is a pseudo
1685 while (answer
== EOF
&& ferror (stdin
) && errno
== EAGAIN
)
1687 /* Not a real EOF. Wait a little while and try again until
1688 we read something. */
1691 answer
= fgetc (stdin
);
1694 clearerr (stdin
); /* in case of C-d */
1695 if (answer
== EOF
) /* C-d */
1697 printf_filtered ("EOF [assumed %c]\n", def_answer
);
1701 /* Eat rest of input line, to EOF or newline */
1705 ans2
= fgetc (stdin
);
1708 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1712 /* Check answer. For the non-default, the user must specify
1713 the non-default explicitly. */
1714 if (answer
== not_def_answer
)
1716 retval
= !def_value
;
1719 /* Otherwise, if a default was specified, the user may either
1720 specify the required input or have it default by entering
1722 if (answer
== def_answer
1723 || (defchar
!= '\0' &&
1724 (answer
== '\n' || answer
== '\r' || answer
== EOF
)))
1729 /* Invalid entries are not defaulted and require another selection. */
1730 printf_filtered (_("Please answer %s or %s.\n"),
1731 y_string
, n_string
);
1735 if (annotation_level
> 1)
1736 printf_filtered (("\n\032\032post-query\n"));
1741 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1742 answer is yes, or 0 if answer is defaulted.
1743 Takes three args which are given to printf to print the question.
1744 The first, a control string, should end in "? ".
1745 It should not say how to answer, because we do that. */
1748 nquery (const char *ctlstr
, ...)
1752 va_start (args
, ctlstr
);
1753 return defaulted_query (ctlstr
, 'n', args
);
1757 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1758 answer is yes, or 1 if answer is defaulted.
1759 Takes three args which are given to printf to print the question.
1760 The first, a control string, should end in "? ".
1761 It should not say how to answer, because we do that. */
1764 yquery (const char *ctlstr
, ...)
1768 va_start (args
, ctlstr
);
1769 return defaulted_query (ctlstr
, 'y', args
);
1773 /* Ask user a y-or-n question and return 1 iff answer is yes.
1774 Takes three args which are given to printf to print the question.
1775 The first, a control string, should end in "? ".
1776 It should not say how to answer, because we do that. */
1779 query (const char *ctlstr
, ...)
1783 va_start (args
, ctlstr
);
1784 return defaulted_query (ctlstr
, '\0', args
);
1788 /* A helper for parse_escape that converts a host character to a
1789 target character. C is the host character. If conversion is
1790 possible, then the target character is stored in *TARGET_C and the
1791 function returns 1. Otherwise, the function returns 0. */
1794 host_char_to_target (struct gdbarch
*gdbarch
, int c
, int *target_c
)
1796 struct obstack host_data
;
1798 struct cleanup
*cleanups
;
1801 obstack_init (&host_data
);
1802 cleanups
= make_cleanup_obstack_free (&host_data
);
1804 convert_between_encodings (target_charset (gdbarch
), host_charset (),
1805 &the_char
, 1, 1, &host_data
, translit_none
);
1807 if (obstack_object_size (&host_data
) == 1)
1810 *target_c
= *(char *) obstack_base (&host_data
);
1813 do_cleanups (cleanups
);
1817 /* Parse a C escape sequence. STRING_PTR points to a variable
1818 containing a pointer to the string to parse. That pointer
1819 should point to the character after the \. That pointer
1820 is updated past the characters we use. The value of the
1821 escape sequence is returned.
1823 A negative value means the sequence \ newline was seen,
1824 which is supposed to be equivalent to nothing at all.
1826 If \ is followed by a null character, we return a negative
1827 value and leave the string pointer pointing at the null character.
1829 If \ is followed by 000, we return 0 and leave the string pointer
1830 after the zeros. A value of 0 does not mean end of string. */
1833 parse_escape (struct gdbarch
*gdbarch
, char **string_ptr
)
1835 int target_char
= -2; /* initialize to avoid GCC warnings */
1836 int c
= *(*string_ptr
)++;
1855 int i
= host_hex_value (c
);
1860 if (isdigit (c
) && c
!= '8' && c
!= '9')
1864 i
+= host_hex_value (c
);
1900 if (!host_char_to_target (gdbarch
, c
, &target_char
))
1902 ("The escape sequence `\%c' is equivalent to plain `%c', which"
1903 " has no equivalent\n" "in the `%s' character set.", c
, c
,
1904 target_charset (gdbarch
));
1908 /* Print the character C on STREAM as part of the contents of a literal
1909 string whose delimiter is QUOTER. Note that this routine should only
1910 be call for printing things which are independent of the language
1911 of the program being debugged. */
1914 printchar (int c
, void (*do_fputs
) (const char *, struct ui_file
*),
1915 void (*do_fprintf
) (struct ui_file
*, const char *, ...)
1916 ATTRIBUTE_FPTR_PRINTF_2
, struct ui_file
*stream
, int quoter
)
1918 c
&= 0xFF; /* Avoid sign bit follies */
1920 if (c
< 0x20 || /* Low control chars */
1921 (c
>= 0x7F && c
< 0xA0) || /* DEL, High controls */
1922 (sevenbit_strings
&& c
>= 0x80))
1923 { /* high order bit set */
1927 do_fputs ("\\n", stream
);
1930 do_fputs ("\\b", stream
);
1933 do_fputs ("\\t", stream
);
1936 do_fputs ("\\f", stream
);
1939 do_fputs ("\\r", stream
);
1942 do_fputs ("\\e", stream
);
1945 do_fputs ("\\a", stream
);
1948 do_fprintf (stream
, "\\%.3o", (unsigned int) c
);
1954 if (c
== '\\' || c
== quoter
)
1955 do_fputs ("\\", stream
);
1956 do_fprintf (stream
, "%c", c
);
1960 /* Print the character C on STREAM as part of the contents of a
1961 literal string whose delimiter is QUOTER. Note that these routines
1962 should only be call for printing things which are independent of
1963 the language of the program being debugged. */
1966 fputstr_filtered (const char *str
, int quoter
, struct ui_file
*stream
)
1969 printchar (*str
++, fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1973 fputstr_unfiltered (const char *str
, int quoter
, struct ui_file
*stream
)
1976 printchar (*str
++, fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1980 fputstrn_filtered (const char *str
, int n
, int quoter
,
1981 struct ui_file
*stream
)
1985 for (i
= 0; i
< n
; i
++)
1986 printchar (str
[i
], fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1990 fputstrn_unfiltered (const char *str
, int n
, int quoter
,
1991 struct ui_file
*stream
)
1995 for (i
= 0; i
< n
; i
++)
1996 printchar (str
[i
], fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
2000 /* Number of lines per page or UINT_MAX if paging is disabled. */
2001 static unsigned int lines_per_page
;
2003 show_lines_per_page (struct ui_file
*file
, int from_tty
,
2004 struct cmd_list_element
*c
, const char *value
)
2006 fprintf_filtered (file
, _("\
2007 Number of lines gdb thinks are in a page is %s.\n"),
2011 /* Number of chars per line or UINT_MAX if line folding is disabled. */
2012 static unsigned int chars_per_line
;
2014 show_chars_per_line (struct ui_file
*file
, int from_tty
,
2015 struct cmd_list_element
*c
, const char *value
)
2017 fprintf_filtered (file
, _("\
2018 Number of characters gdb thinks are in a line is %s.\n"),
2022 /* Current count of lines printed on this page, chars on this line. */
2023 static unsigned int lines_printed
, chars_printed
;
2025 /* Buffer and start column of buffered text, for doing smarter word-
2026 wrapping. When someone calls wrap_here(), we start buffering output
2027 that comes through fputs_filtered(). If we see a newline, we just
2028 spit it out and forget about the wrap_here(). If we see another
2029 wrap_here(), we spit it out and remember the newer one. If we see
2030 the end of the line, we spit out a newline, the indent, and then
2031 the buffered output. */
2033 /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which
2034 are waiting to be output (they have already been counted in chars_printed).
2035 When wrap_buffer[0] is null, the buffer is empty. */
2036 static char *wrap_buffer
;
2038 /* Pointer in wrap_buffer to the next character to fill. */
2039 static char *wrap_pointer
;
2041 /* String to indent by if the wrap occurs. Must not be NULL if wrap_column
2043 static char *wrap_indent
;
2045 /* Column number on the screen where wrap_buffer begins, or 0 if wrapping
2046 is not in effect. */
2047 static int wrap_column
;
2050 /* Inialize the number of lines per page and chars per line. */
2053 init_page_info (void)
2056 if (!tui_get_command_dimension (&chars_per_line
, &lines_per_page
))
2061 #if defined(__GO32__)
2062 rows
= ScreenRows ();
2063 cols
= ScreenCols ();
2064 lines_per_page
= rows
;
2065 chars_per_line
= cols
;
2067 /* Make sure Readline has initialized its terminal settings. */
2068 rl_reset_terminal (NULL
);
2070 /* Get the screen size from Readline. */
2071 rl_get_screen_size (&rows
, &cols
);
2072 lines_per_page
= rows
;
2073 chars_per_line
= cols
;
2075 /* Readline should have fetched the termcap entry for us. */
2076 if (tgetnum ("li") < 0 || getenv ("EMACS"))
2078 /* The number of lines per page is not mentioned in the
2079 terminal description. This probably means that paging is
2080 not useful (e.g. emacs shell window), so disable paging. */
2081 lines_per_page
= UINT_MAX
;
2084 /* FIXME: Get rid of this junk. */
2085 #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
2086 SIGWINCH_HANDLER (SIGWINCH
);
2089 /* If the output is not a terminal, don't paginate it. */
2090 if (!ui_file_isatty (gdb_stdout
))
2091 lines_per_page
= UINT_MAX
;
2099 /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */
2102 set_screen_size (void)
2104 int rows
= lines_per_page
;
2105 int cols
= chars_per_line
;
2113 /* Update Readline's idea of the terminal size. */
2114 rl_set_screen_size (rows
, cols
);
2117 /* Reinitialize WRAP_BUFFER according to the current value of
2123 if (chars_per_line
== 0)
2128 wrap_buffer
= (char *) xmalloc (chars_per_line
+ 2);
2129 wrap_buffer
[0] = '\0';
2132 wrap_buffer
= (char *) xrealloc (wrap_buffer
, chars_per_line
+ 2);
2133 wrap_pointer
= wrap_buffer
; /* Start it at the beginning. */
2137 set_width_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
2144 set_height_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
2149 /* Wait, so the user can read what's on the screen. Prompt the user
2150 to continue by pressing RETURN. */
2153 prompt_for_continue (void)
2156 char cont_prompt
[120];
2158 if (annotation_level
> 1)
2159 printf_unfiltered (("\n\032\032pre-prompt-for-continue\n"));
2161 strcpy (cont_prompt
,
2162 "---Type <return> to continue, or q <return> to quit---");
2163 if (annotation_level
> 1)
2164 strcat (cont_prompt
, "\n\032\032prompt-for-continue\n");
2166 /* We must do this *before* we call gdb_readline, else it will eventually
2167 call us -- thinking that we're trying to print beyond the end of the
2169 reinitialize_more_filter ();
2172 /* On a real operating system, the user can quit with SIGINT.
2175 'q' is provided on all systems so users don't have to change habits
2176 from system to system, and because telling them what to do in
2177 the prompt is more user-friendly than expecting them to think of
2179 /* Call readline, not gdb_readline, because GO32 readline handles control-C
2180 whereas control-C to gdb_readline will cause the user to get dumped
2182 ignore
= gdb_readline_wrapper (cont_prompt
);
2184 if (annotation_level
> 1)
2185 printf_unfiltered (("\n\032\032post-prompt-for-continue\n"));
2191 while (*p
== ' ' || *p
== '\t')
2194 async_request_quit (0);
2199 /* Now we have to do this again, so that GDB will know that it doesn't
2200 need to save the ---Type <return>--- line at the top of the screen. */
2201 reinitialize_more_filter ();
2203 dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */
2206 /* Reinitialize filter; ie. tell it to reset to original values. */
2209 reinitialize_more_filter (void)
2215 /* Indicate that if the next sequence of characters overflows the line,
2216 a newline should be inserted here rather than when it hits the end.
2217 If INDENT is non-null, it is a string to be printed to indent the
2218 wrapped part on the next line. INDENT must remain accessible until
2219 the next call to wrap_here() or until a newline is printed through
2222 If the line is already overfull, we immediately print a newline and
2223 the indentation, and disable further wrapping.
2225 If we don't know the width of lines, but we know the page height,
2226 we must not wrap words, but should still keep track of newlines
2227 that were explicitly printed.
2229 INDENT should not contain tabs, as that will mess up the char count
2230 on the next line. FIXME.
2232 This routine is guaranteed to force out any output which has been
2233 squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be
2234 used to force out output from the wrap_buffer. */
2237 wrap_here (char *indent
)
2239 /* This should have been allocated, but be paranoid anyway. */
2241 internal_error (__FILE__
, __LINE__
, _("failed internal consistency check"));
2245 *wrap_pointer
= '\0';
2246 fputs_unfiltered (wrap_buffer
, gdb_stdout
);
2248 wrap_pointer
= wrap_buffer
;
2249 wrap_buffer
[0] = '\0';
2250 if (chars_per_line
== UINT_MAX
) /* No line overflow checking */
2254 else if (chars_printed
>= chars_per_line
)
2256 puts_filtered ("\n");
2258 puts_filtered (indent
);
2263 wrap_column
= chars_printed
;
2267 wrap_indent
= indent
;
2271 /* Print input string to gdb_stdout, filtered, with wrap,
2272 arranging strings in columns of n chars. String can be
2273 right or left justified in the column. Never prints
2274 trailing spaces. String should never be longer than
2275 width. FIXME: this could be useful for the EXAMINE
2276 command, which currently doesn't tabulate very well */
2279 puts_filtered_tabular (char *string
, int width
, int right
)
2285 gdb_assert (chars_per_line
> 0);
2286 if (chars_per_line
== UINT_MAX
)
2288 fputs_filtered (string
, gdb_stdout
);
2289 fputs_filtered ("\n", gdb_stdout
);
2293 if (((chars_printed
- 1) / width
+ 2) * width
>= chars_per_line
)
2294 fputs_filtered ("\n", gdb_stdout
);
2296 if (width
>= chars_per_line
)
2297 width
= chars_per_line
- 1;
2299 stringlen
= strlen (string
);
2301 if (chars_printed
> 0)
2302 spaces
= width
- (chars_printed
- 1) % width
- 1;
2304 spaces
+= width
- stringlen
;
2306 spacebuf
= alloca (spaces
+ 1);
2307 spacebuf
[spaces
] = '\0';
2309 spacebuf
[spaces
] = ' ';
2311 fputs_filtered (spacebuf
, gdb_stdout
);
2312 fputs_filtered (string
, gdb_stdout
);
2316 /* Ensure that whatever gets printed next, using the filtered output
2317 commands, starts at the beginning of the line. I.E. if there is
2318 any pending output for the current line, flush it and start a new
2319 line. Otherwise do nothing. */
2324 if (chars_printed
> 0)
2326 puts_filtered ("\n");
2331 /* Like fputs but if FILTER is true, pause after every screenful.
2333 Regardless of FILTER can wrap at points other than the final
2334 character of a line.
2336 Unlike fputs, fputs_maybe_filtered does not return a value.
2337 It is OK for LINEBUFFER to be NULL, in which case just don't print
2340 Note that a longjmp to top level may occur in this routine (only if
2341 FILTER is true) (since prompt_for_continue may do so) so this
2342 routine should not be called when cleanups are not in place. */
2345 fputs_maybe_filtered (const char *linebuffer
, struct ui_file
*stream
,
2348 const char *lineptr
;
2350 if (linebuffer
== 0)
2353 /* Don't do any filtering if it is disabled. */
2354 if (stream
!= gdb_stdout
2355 || !pagination_enabled
2356 || (lines_per_page
== UINT_MAX
&& chars_per_line
== UINT_MAX
)
2357 || top_level_interpreter () == NULL
2358 || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ())))
2360 fputs_unfiltered (linebuffer
, stream
);
2364 /* Go through and output each character. Show line extension
2365 when this is necessary; prompt user for new page when this is
2368 lineptr
= linebuffer
;
2371 /* Possible new page. */
2372 if (filter
&& (lines_printed
>= lines_per_page
- 1))
2373 prompt_for_continue ();
2375 while (*lineptr
&& *lineptr
!= '\n')
2377 /* Print a single line. */
2378 if (*lineptr
== '\t')
2381 *wrap_pointer
++ = '\t';
2383 fputc_unfiltered ('\t', stream
);
2384 /* Shifting right by 3 produces the number of tab stops
2385 we have already passed, and then adding one and
2386 shifting left 3 advances to the next tab stop. */
2387 chars_printed
= ((chars_printed
>> 3) + 1) << 3;
2393 *wrap_pointer
++ = *lineptr
;
2395 fputc_unfiltered (*lineptr
, stream
);
2400 if (chars_printed
>= chars_per_line
)
2402 unsigned int save_chars
= chars_printed
;
2406 /* If we aren't actually wrapping, don't output newline --
2407 if chars_per_line is right, we probably just overflowed
2408 anyway; if it's wrong, let us keep going. */
2410 fputc_unfiltered ('\n', stream
);
2412 /* Possible new page. */
2413 if (lines_printed
>= lines_per_page
- 1)
2414 prompt_for_continue ();
2416 /* Now output indentation and wrapped string */
2419 fputs_unfiltered (wrap_indent
, stream
);
2420 *wrap_pointer
= '\0'; /* Null-terminate saved stuff */
2421 fputs_unfiltered (wrap_buffer
, stream
); /* and eject it */
2422 /* FIXME, this strlen is what prevents wrap_indent from
2423 containing tabs. However, if we recurse to print it
2424 and count its chars, we risk trouble if wrap_indent is
2425 longer than (the user settable) chars_per_line.
2426 Note also that this can set chars_printed > chars_per_line
2427 if we are printing a long string. */
2428 chars_printed
= strlen (wrap_indent
)
2429 + (save_chars
- wrap_column
);
2430 wrap_pointer
= wrap_buffer
; /* Reset buffer */
2431 wrap_buffer
[0] = '\0';
2432 wrap_column
= 0; /* And disable fancy wrap */
2437 if (*lineptr
== '\n')
2440 wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */
2442 fputc_unfiltered ('\n', stream
);
2449 fputs_filtered (const char *linebuffer
, struct ui_file
*stream
)
2451 fputs_maybe_filtered (linebuffer
, stream
, 1);
2455 putchar_unfiltered (int c
)
2459 ui_file_write (gdb_stdout
, &buf
, 1);
2463 /* Write character C to gdb_stdout using GDB's paging mechanism and return C.
2464 May return nonlocally. */
2467 putchar_filtered (int c
)
2469 return fputc_filtered (c
, gdb_stdout
);
2473 fputc_unfiltered (int c
, struct ui_file
*stream
)
2477 ui_file_write (stream
, &buf
, 1);
2482 fputc_filtered (int c
, struct ui_file
*stream
)
2488 fputs_filtered (buf
, stream
);
2492 /* puts_debug is like fputs_unfiltered, except it prints special
2493 characters in printable fashion. */
2496 puts_debug (char *prefix
, char *string
, char *suffix
)
2500 /* Print prefix and suffix after each line. */
2501 static int new_line
= 1;
2502 static int return_p
= 0;
2503 static char *prev_prefix
= "";
2504 static char *prev_suffix
= "";
2506 if (*string
== '\n')
2509 /* If the prefix is changing, print the previous suffix, a new line,
2510 and the new prefix. */
2511 if ((return_p
|| (strcmp (prev_prefix
, prefix
) != 0)) && !new_line
)
2513 fputs_unfiltered (prev_suffix
, gdb_stdlog
);
2514 fputs_unfiltered ("\n", gdb_stdlog
);
2515 fputs_unfiltered (prefix
, gdb_stdlog
);
2518 /* Print prefix if we printed a newline during the previous call. */
2522 fputs_unfiltered (prefix
, gdb_stdlog
);
2525 prev_prefix
= prefix
;
2526 prev_suffix
= suffix
;
2528 /* Output characters in a printable format. */
2529 while ((ch
= *string
++) != '\0')
2535 fputc_unfiltered (ch
, gdb_stdlog
);
2538 fprintf_unfiltered (gdb_stdlog
, "\\x%02x", ch
& 0xff);
2542 fputs_unfiltered ("\\\\", gdb_stdlog
);
2545 fputs_unfiltered ("\\b", gdb_stdlog
);
2548 fputs_unfiltered ("\\f", gdb_stdlog
);
2552 fputs_unfiltered ("\\n", gdb_stdlog
);
2555 fputs_unfiltered ("\\r", gdb_stdlog
);
2558 fputs_unfiltered ("\\t", gdb_stdlog
);
2561 fputs_unfiltered ("\\v", gdb_stdlog
);
2565 return_p
= ch
== '\r';
2568 /* Print suffix if we printed a newline. */
2571 fputs_unfiltered (suffix
, gdb_stdlog
);
2572 fputs_unfiltered ("\n", gdb_stdlog
);
2577 /* Print a variable number of ARGS using format FORMAT. If this
2578 information is going to put the amount written (since the last call
2579 to REINITIALIZE_MORE_FILTER or the last page break) over the page size,
2580 call prompt_for_continue to get the users permision to continue.
2582 Unlike fprintf, this function does not return a value.
2584 We implement three variants, vfprintf (takes a vararg list and stream),
2585 fprintf (takes a stream to write on), and printf (the usual).
2587 Note also that a longjmp to top level may occur in this routine
2588 (since prompt_for_continue may do so) so this routine should not be
2589 called when cleanups are not in place. */
2592 vfprintf_maybe_filtered (struct ui_file
*stream
, const char *format
,
2593 va_list args
, int filter
)
2596 struct cleanup
*old_cleanups
;
2598 linebuffer
= xstrvprintf (format
, args
);
2599 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2600 fputs_maybe_filtered (linebuffer
, stream
, filter
);
2601 do_cleanups (old_cleanups
);
2606 vfprintf_filtered (struct ui_file
*stream
, const char *format
, va_list args
)
2608 vfprintf_maybe_filtered (stream
, format
, args
, 1);
2612 vfprintf_unfiltered (struct ui_file
*stream
, const char *format
, va_list args
)
2615 struct cleanup
*old_cleanups
;
2617 linebuffer
= xstrvprintf (format
, args
);
2618 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2619 if (debug_timestamp
&& stream
== gdb_stdlog
)
2625 gettimeofday (&tm
, NULL
);
2627 len
= strlen (linebuffer
);
2628 need_nl
= (len
> 0 && linebuffer
[len
- 1] != '\n');
2630 timestamp
= xstrprintf ("%ld:%ld %s%s",
2631 (long) tm
.tv_sec
, (long) tm
.tv_usec
,
2633 need_nl
? "\n": "");
2634 make_cleanup (xfree
, timestamp
);
2635 fputs_unfiltered (timestamp
, stream
);
2638 fputs_unfiltered (linebuffer
, stream
);
2639 do_cleanups (old_cleanups
);
2643 vprintf_filtered (const char *format
, va_list args
)
2645 vfprintf_maybe_filtered (gdb_stdout
, format
, args
, 1);
2649 vprintf_unfiltered (const char *format
, va_list args
)
2651 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2655 fprintf_filtered (struct ui_file
*stream
, const char *format
, ...)
2659 va_start (args
, format
);
2660 vfprintf_filtered (stream
, format
, args
);
2665 fprintf_unfiltered (struct ui_file
*stream
, const char *format
, ...)
2669 va_start (args
, format
);
2670 vfprintf_unfiltered (stream
, format
, args
);
2674 /* Like fprintf_filtered, but prints its result indented.
2675 Called as fprintfi_filtered (spaces, stream, format, ...); */
2678 fprintfi_filtered (int spaces
, struct ui_file
*stream
, const char *format
,
2683 va_start (args
, format
);
2684 print_spaces_filtered (spaces
, stream
);
2686 vfprintf_filtered (stream
, format
, args
);
2692 printf_filtered (const char *format
, ...)
2696 va_start (args
, format
);
2697 vfprintf_filtered (gdb_stdout
, format
, args
);
2703 printf_unfiltered (const char *format
, ...)
2707 va_start (args
, format
);
2708 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2712 /* Like printf_filtered, but prints it's result indented.
2713 Called as printfi_filtered (spaces, format, ...); */
2716 printfi_filtered (int spaces
, const char *format
, ...)
2720 va_start (args
, format
);
2721 print_spaces_filtered (spaces
, gdb_stdout
);
2722 vfprintf_filtered (gdb_stdout
, format
, args
);
2726 /* Easy -- but watch out!
2728 This routine is *not* a replacement for puts()! puts() appends a newline.
2729 This one doesn't, and had better not! */
2732 puts_filtered (const char *string
)
2734 fputs_filtered (string
, gdb_stdout
);
2738 puts_unfiltered (const char *string
)
2740 fputs_unfiltered (string
, gdb_stdout
);
2743 /* Return a pointer to N spaces and a null. The pointer is good
2744 until the next call to here. */
2749 static char *spaces
= 0;
2750 static int max_spaces
= -1;
2756 spaces
= (char *) xmalloc (n
+ 1);
2757 for (t
= spaces
+ n
; t
!= spaces
;)
2763 return spaces
+ max_spaces
- n
;
2766 /* Print N spaces. */
2768 print_spaces_filtered (int n
, struct ui_file
*stream
)
2770 fputs_filtered (n_spaces (n
), stream
);
2773 /* C++/ObjC demangler stuff. */
2775 /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language
2776 LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
2777 If the name is not mangled, or the language for the name is unknown, or
2778 demangling is off, the name is printed in its "raw" form. */
2781 fprintf_symbol_filtered (struct ui_file
*stream
, char *name
,
2782 enum language lang
, int arg_mode
)
2788 /* If user wants to see raw output, no problem. */
2791 fputs_filtered (name
, stream
);
2795 demangled
= language_demangle (language_def (lang
), name
, arg_mode
);
2796 fputs_filtered (demangled
? demangled
: name
, stream
);
2797 if (demangled
!= NULL
)
2805 /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any
2806 differences in whitespace. Returns 0 if they match, non-zero if they
2807 don't (slightly different than strcmp()'s range of return values).
2809 As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO".
2810 This "feature" is useful when searching for matching C++ function names
2811 (such as if the user types 'break FOO', where FOO is a mangled C++
2815 strcmp_iw (const char *string1
, const char *string2
)
2817 while ((*string1
!= '\0') && (*string2
!= '\0'))
2819 while (isspace (*string1
))
2823 while (isspace (*string2
))
2827 if (*string1
!= *string2
)
2831 if (*string1
!= '\0')
2837 return (*string1
!= '\0' && *string1
!= '(') || (*string2
!= '\0');
2840 /* This is like strcmp except that it ignores whitespace and treats
2841 '(' as the first non-NULL character in terms of ordering. Like
2842 strcmp (and unlike strcmp_iw), it returns negative if STRING1 <
2843 STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2
2844 according to that ordering.
2846 If a list is sorted according to this function and if you want to
2847 find names in the list that match some fixed NAME according to
2848 strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
2849 where this function would put NAME.
2851 Here are some examples of why using strcmp to sort is a bad idea:
2855 Say your partial symtab contains: "foo<char *>", "goo". Then, if
2856 we try to do a search for "foo<char*>", strcmp will locate this
2857 after "foo<char *>" and before "goo". Then lookup_partial_symbol
2858 will start looking at strings beginning with "goo", and will never
2859 see the correct match of "foo<char *>".
2861 Parenthesis example:
2863 In practice, this is less like to be an issue, but I'll give it a
2864 shot. Let's assume that '$' is a legitimate character to occur in
2865 symbols. (Which may well even be the case on some systems.) Then
2866 say that the partial symbol table contains "foo$" and "foo(int)".
2867 strcmp will put them in this order, since '$' < '('. Now, if the
2868 user searches for "foo", then strcmp will sort "foo" before "foo$".
2869 Then lookup_partial_symbol will notice that strcmp_iw("foo$",
2870 "foo") is false, so it won't proceed to the actual match of
2871 "foo(int)" with "foo". */
2874 strcmp_iw_ordered (const char *string1
, const char *string2
)
2876 while ((*string1
!= '\0') && (*string2
!= '\0'))
2878 while (isspace (*string1
))
2882 while (isspace (*string2
))
2886 if (*string1
!= *string2
)
2890 if (*string1
!= '\0')
2899 /* Characters are non-equal unless they're both '\0'; we want to
2900 make sure we get the comparison right according to our
2901 comparison in the cases where one of them is '\0' or '('. */
2903 if (*string2
== '\0')
2908 if (*string2
== '\0')
2913 if (*string2
== '(')
2916 return *string1
- *string2
;
2920 /* A simple comparison function with opposite semantics to strcmp. */
2923 streq (const char *lhs
, const char *rhs
)
2925 return !strcmp (lhs
, rhs
);
2931 ** Answer whether string_to_compare is a full or partial match to
2932 ** template_string. The partial match must be in sequence starting
2936 subset_compare (char *string_to_compare
, char *template_string
)
2940 if (template_string
!= (char *) NULL
&& string_to_compare
!= (char *) NULL
2941 && strlen (string_to_compare
) <= strlen (template_string
))
2944 (template_string
, string_to_compare
, strlen (string_to_compare
)) == 0);
2951 pagination_on_command (char *arg
, int from_tty
)
2953 pagination_enabled
= 1;
2957 pagination_off_command (char *arg
, int from_tty
)
2959 pagination_enabled
= 0;
2963 show_debug_timestamp (struct ui_file
*file
, int from_tty
,
2964 struct cmd_list_element
*c
, const char *value
)
2966 fprintf_filtered (file
, _("Timestamping debugging messages is %s.\n"), value
);
2971 initialize_utils (void)
2973 add_setshow_uinteger_cmd ("width", class_support
, &chars_per_line
, _("\
2974 Set number of characters gdb thinks are in a line."), _("\
2975 Show number of characters gdb thinks are in a line."), NULL
,
2977 show_chars_per_line
,
2978 &setlist
, &showlist
);
2980 add_setshow_uinteger_cmd ("height", class_support
, &lines_per_page
, _("\
2981 Set number of lines gdb thinks are in a page."), _("\
2982 Show number of lines gdb thinks are in a page."), NULL
,
2984 show_lines_per_page
,
2985 &setlist
, &showlist
);
2989 add_setshow_boolean_cmd ("demangle", class_support
, &demangle
, _("\
2990 Set demangling of encoded C++/ObjC names when displaying symbols."), _("\
2991 Show demangling of encoded C++/ObjC names when displaying symbols."), NULL
,
2994 &setprintlist
, &showprintlist
);
2996 add_setshow_boolean_cmd ("pagination", class_support
,
2997 &pagination_enabled
, _("\
2998 Set state of pagination."), _("\
2999 Show state of pagination."), NULL
,
3001 show_pagination_enabled
,
3002 &setlist
, &showlist
);
3006 add_com ("am", class_support
, pagination_on_command
,
3007 _("Enable pagination"));
3008 add_com ("sm", class_support
, pagination_off_command
,
3009 _("Disable pagination"));
3012 add_setshow_boolean_cmd ("sevenbit-strings", class_support
,
3013 &sevenbit_strings
, _("\
3014 Set printing of 8-bit characters in strings as \\nnn."), _("\
3015 Show printing of 8-bit characters in strings as \\nnn."), NULL
,
3017 show_sevenbit_strings
,
3018 &setprintlist
, &showprintlist
);
3020 add_setshow_boolean_cmd ("asm-demangle", class_support
, &asm_demangle
, _("\
3021 Set demangling of C++/ObjC names in disassembly listings."), _("\
3022 Show demangling of C++/ObjC names in disassembly listings."), NULL
,
3025 &setprintlist
, &showprintlist
);
3027 add_setshow_boolean_cmd ("timestamp", class_maintenance
,
3028 &debug_timestamp
, _("\
3029 Set timestamping of debugging messages."), _("\
3030 Show timestamping of debugging messages."), _("\
3031 When set, debugging messages will be marked with seconds and microseconds."),
3033 show_debug_timestamp
,
3034 &setdebuglist
, &showdebuglist
);
3037 /* Machine specific function to handle SIGWINCH signal. */
3039 #ifdef SIGWINCH_HANDLER_BODY
3040 SIGWINCH_HANDLER_BODY
3042 /* print routines to handle variable size regs, etc. */
3043 /* temporary storage using circular buffer */
3049 static char buf
[NUMCELLS
][CELLSIZE
];
3050 static int cell
= 0;
3052 if (++cell
>= NUMCELLS
)
3058 paddress (struct gdbarch
*gdbarch
, CORE_ADDR addr
)
3060 /* Truncate address to the size of a target address, avoiding shifts
3061 larger or equal than the width of a CORE_ADDR. The local
3062 variable ADDR_BIT stops the compiler reporting a shift overflow
3063 when it won't occur. */
3064 /* NOTE: This assumes that the significant address information is
3065 kept in the least significant bits of ADDR - the upper bits were
3066 either zero or sign extended. Should gdbarch_address_to_pointer or
3067 some ADDRESS_TO_PRINTABLE() be used to do the conversion? */
3069 int addr_bit
= gdbarch_addr_bit (gdbarch
);
3071 if (addr_bit
< (sizeof (CORE_ADDR
) * HOST_CHAR_BIT
))
3072 addr
&= ((CORE_ADDR
) 1 << addr_bit
) - 1;
3073 return hex_string (addr
);
3077 decimal2str (char *sign
, ULONGEST addr
, int width
)
3079 /* Steal code from valprint.c:print_decimal(). Should this worry
3080 about the real size of addr as the above does? */
3081 unsigned long temp
[3];
3082 char *str
= get_cell ();
3087 temp
[i
] = addr
% (1000 * 1000 * 1000);
3088 addr
/= (1000 * 1000 * 1000);
3092 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
3101 xsnprintf (str
, CELLSIZE
, "%s%0*lu", sign
, width
, temp
[0]);
3104 xsnprintf (str
, CELLSIZE
, "%s%0*lu%09lu", sign
, width
,
3108 xsnprintf (str
, CELLSIZE
, "%s%0*lu%09lu%09lu", sign
, width
,
3109 temp
[2], temp
[1], temp
[0]);
3112 internal_error (__FILE__
, __LINE__
,
3113 _("failed internal consistency check"));
3120 octal2str (ULONGEST addr
, int width
)
3122 unsigned long temp
[3];
3123 char *str
= get_cell ();
3128 temp
[i
] = addr
% (0100000 * 0100000);
3129 addr
/= (0100000 * 0100000);
3133 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
3143 xsnprintf (str
, CELLSIZE
, "%*o", width
, 0);
3145 xsnprintf (str
, CELLSIZE
, "0%0*lo", width
, temp
[0]);
3148 xsnprintf (str
, CELLSIZE
, "0%0*lo%010lo", width
, temp
[1], temp
[0]);
3151 xsnprintf (str
, CELLSIZE
, "0%0*lo%010lo%010lo", width
,
3152 temp
[2], temp
[1], temp
[0]);
3155 internal_error (__FILE__
, __LINE__
,
3156 _("failed internal consistency check"));
3163 pulongest (ULONGEST u
)
3165 return decimal2str ("", u
, 0);
3169 plongest (LONGEST l
)
3172 return decimal2str ("-", -l
, 0);
3174 return decimal2str ("", l
, 0);
3177 /* Eliminate warning from compiler on 32-bit systems. */
3178 static int thirty_two
= 32;
3181 phex (ULONGEST l
, int sizeof_l
)
3189 xsnprintf (str
, CELLSIZE
, "%08lx%08lx",
3190 (unsigned long) (l
>> thirty_two
),
3191 (unsigned long) (l
& 0xffffffff));
3195 xsnprintf (str
, CELLSIZE
, "%08lx", (unsigned long) l
);
3199 xsnprintf (str
, CELLSIZE
, "%04x", (unsigned short) (l
& 0xffff));
3202 str
= phex (l
, sizeof (l
));
3210 phex_nz (ULONGEST l
, int sizeof_l
)
3218 unsigned long high
= (unsigned long) (l
>> thirty_two
);
3222 xsnprintf (str
, CELLSIZE
, "%lx",
3223 (unsigned long) (l
& 0xffffffff));
3225 xsnprintf (str
, CELLSIZE
, "%lx%08lx", high
,
3226 (unsigned long) (l
& 0xffffffff));
3231 xsnprintf (str
, CELLSIZE
, "%lx", (unsigned long) l
);
3235 xsnprintf (str
, CELLSIZE
, "%x", (unsigned short) (l
& 0xffff));
3238 str
= phex_nz (l
, sizeof (l
));
3245 /* Converts a LONGEST to a C-format hexadecimal literal and stores it
3246 in a static string. Returns a pointer to this string. */
3248 hex_string (LONGEST num
)
3250 char *result
= get_cell ();
3252 xsnprintf (result
, CELLSIZE
, "0x%s", phex_nz (num
, sizeof (num
)));
3256 /* Converts a LONGEST number to a C-format hexadecimal literal and
3257 stores it in a static string. Returns a pointer to this string
3258 that is valid until the next call. The number is padded on the
3259 left with 0s to at least WIDTH characters. */
3261 hex_string_custom (LONGEST num
, int width
)
3263 char *result
= get_cell ();
3264 char *result_end
= result
+ CELLSIZE
- 1;
3265 const char *hex
= phex_nz (num
, sizeof (num
));
3266 int hex_len
= strlen (hex
);
3268 if (hex_len
> width
)
3270 if (width
+ 2 >= CELLSIZE
)
3271 internal_error (__FILE__
, __LINE__
,
3272 _("hex_string_custom: insufficient space to store result"));
3274 strcpy (result_end
- width
- 2, "0x");
3275 memset (result_end
- width
, '0', width
);
3276 strcpy (result_end
- hex_len
, hex
);
3277 return result_end
- width
- 2;
3280 /* Convert VAL to a numeral in the given radix. For
3281 * radix 10, IS_SIGNED may be true, indicating a signed quantity;
3282 * otherwise VAL is interpreted as unsigned. If WIDTH is supplied,
3283 * it is the minimum width (0-padded if needed). USE_C_FORMAT means
3284 * to use C format in all cases. If it is false, then 'x'
3285 * and 'o' formats do not include a prefix (0x or leading 0). */
3288 int_string (LONGEST val
, int radix
, int is_signed
, int width
,
3298 result
= hex_string (val
);
3300 result
= hex_string_custom (val
, width
);
3307 if (is_signed
&& val
< 0)
3308 return decimal2str ("-", -val
, width
);
3310 return decimal2str ("", val
, width
);
3314 char *result
= octal2str (val
, width
);
3316 if (use_c_format
|| val
== 0)
3322 internal_error (__FILE__
, __LINE__
,
3323 _("failed internal consistency check"));
3327 /* Convert a CORE_ADDR into a string. */
3329 core_addr_to_string (const CORE_ADDR addr
)
3331 char *str
= get_cell ();
3334 strcat (str
, phex (addr
, sizeof (addr
)));
3339 core_addr_to_string_nz (const CORE_ADDR addr
)
3341 char *str
= get_cell ();
3344 strcat (str
, phex_nz (addr
, sizeof (addr
)));
3348 /* Convert a string back into a CORE_ADDR. */
3350 string_to_core_addr (const char *my_string
)
3354 if (my_string
[0] == '0' && tolower (my_string
[1]) == 'x')
3356 /* Assume that it is in hex. */
3359 for (i
= 2; my_string
[i
] != '\0'; i
++)
3361 if (isdigit (my_string
[i
]))
3362 addr
= (my_string
[i
] - '0') + (addr
* 16);
3363 else if (isxdigit (my_string
[i
]))
3364 addr
= (tolower (my_string
[i
]) - 'a' + 0xa) + (addr
* 16);
3366 error (_("invalid hex \"%s\""), my_string
);
3371 /* Assume that it is in decimal. */
3374 for (i
= 0; my_string
[i
] != '\0'; i
++)
3376 if (isdigit (my_string
[i
]))
3377 addr
= (my_string
[i
] - '0') + (addr
* 10);
3379 error (_("invalid decimal \"%s\""), my_string
);
3387 host_address_to_string (const void *addr
)
3389 char *str
= get_cell ();
3391 xsnprintf (str
, CELLSIZE
, "0x%s", phex_nz ((uintptr_t) addr
, sizeof (addr
)));
3396 gdb_realpath (const char *filename
)
3398 /* Method 1: The system has a compile time upper bound on a filename
3399 path. Use that and realpath() to canonicalize the name. This is
3400 the most common case. Note that, if there isn't a compile time
3401 upper bound, you want to avoid realpath() at all costs. */
3402 #if defined(HAVE_REALPATH)
3404 # if defined (PATH_MAX)
3406 # define USE_REALPATH
3407 # elif defined (MAXPATHLEN)
3408 char buf
[MAXPATHLEN
];
3409 # define USE_REALPATH
3411 # if defined (USE_REALPATH)
3412 const char *rp
= realpath (filename
, buf
);
3416 return xstrdup (rp
);
3419 #endif /* HAVE_REALPATH */
3421 /* Method 2: The host system (i.e., GNU) has the function
3422 canonicalize_file_name() which malloc's a chunk of memory and
3423 returns that, use that. */
3424 #if defined(HAVE_CANONICALIZE_FILE_NAME)
3426 char *rp
= canonicalize_file_name (filename
);
3429 return xstrdup (filename
);
3435 /* FIXME: cagney/2002-11-13:
3437 Method 2a: Use realpath() with a NULL buffer. Some systems, due
3438 to the problems described in in method 3, have modified their
3439 realpath() implementation so that it will allocate a buffer when
3440 NULL is passed in. Before this can be used, though, some sort of
3441 configure time test would need to be added. Otherwize the code
3442 will likely core dump. */
3444 /* Method 3: Now we're getting desperate! The system doesn't have a
3445 compile time buffer size and no alternative function. Query the
3446 OS, using pathconf(), for the buffer limit. Care is needed
3447 though, some systems do not limit PATH_MAX (return -1 for
3448 pathconf()) making it impossible to pass a correctly sized buffer
3449 to realpath() (it could always overflow). On those systems, we
3451 #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
3453 /* Find out the max path size. */
3454 long path_max
= pathconf ("/", _PC_PATH_MAX
);
3458 /* PATH_MAX is bounded. */
3459 char *buf
= alloca (path_max
);
3460 char *rp
= realpath (filename
, buf
);
3462 return xstrdup (rp
? rp
: filename
);
3467 /* This system is a lost cause, just dup the buffer. */
3468 return xstrdup (filename
);
3471 /* Return a copy of FILENAME, with its directory prefix canonicalized
3475 xfullpath (const char *filename
)
3477 const char *base_name
= lbasename (filename
);
3482 /* Extract the basename of filename, and return immediately
3483 a copy of filename if it does not contain any directory prefix. */
3484 if (base_name
== filename
)
3485 return xstrdup (filename
);
3487 dir_name
= alloca ((size_t) (base_name
- filename
+ 2));
3488 /* Allocate enough space to store the dir_name + plus one extra
3489 character sometimes needed under Windows (see below), and
3490 then the closing \000 character */
3491 strncpy (dir_name
, filename
, base_name
- filename
);
3492 dir_name
[base_name
- filename
] = '\000';
3494 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
3495 /* We need to be careful when filename is of the form 'd:foo', which
3496 is equivalent of d:./foo, which is totally different from d:/foo. */
3497 if (strlen (dir_name
) == 2 && isalpha (dir_name
[0]) && dir_name
[1] == ':')
3500 dir_name
[3] = '\000';
3504 /* Canonicalize the directory prefix, and build the resulting
3505 filename. If the dirname realpath already contains an ending
3506 directory separator, avoid doubling it. */
3507 real_path
= gdb_realpath (dir_name
);
3508 if (IS_DIR_SEPARATOR (real_path
[strlen (real_path
) - 1]))
3509 result
= concat (real_path
, base_name
, (char *) NULL
);
3511 result
= concat (real_path
, SLASH_STRING
, base_name
, (char *) NULL
);
3518 /* This is the 32-bit CRC function used by the GNU separate debug
3519 facility. An executable may contain a section named
3520 .gnu_debuglink, which holds the name of a separate executable file
3521 containing its debug info, and a checksum of that file's contents,
3522 computed using this function. */
3524 gnu_debuglink_crc32 (unsigned long crc
, unsigned char *buf
, size_t len
)
3526 static const unsigned int crc32_table
[256] = {
3527 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
3528 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
3529 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
3530 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
3531 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
3532 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
3533 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
3534 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
3535 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
3536 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
3537 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
3538 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
3539 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
3540 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
3541 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
3542 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
3543 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
3544 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
3545 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
3546 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
3547 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
3548 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
3549 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
3550 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
3551 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
3552 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
3553 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
3554 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
3555 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
3556 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
3557 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
3558 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
3559 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
3560 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
3561 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
3562 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
3563 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
3564 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
3565 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
3566 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
3567 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
3568 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
3569 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
3570 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
3571 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
3572 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
3573 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
3574 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
3575 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
3576 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
3577 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
3582 crc
= ~crc
& 0xffffffff;
3583 for (end
= buf
+ len
; buf
< end
; ++buf
)
3584 crc
= crc32_table
[(crc
^ *buf
) & 0xff] ^ (crc
>> 8);
3585 return ~crc
& 0xffffffff;;
3589 align_up (ULONGEST v
, int n
)
3591 /* Check that N is really a power of two. */
3592 gdb_assert (n
&& (n
& (n
-1)) == 0);
3593 return (v
+ n
- 1) & -n
;
3597 align_down (ULONGEST v
, int n
)
3599 /* Check that N is really a power of two. */
3600 gdb_assert (n
&& (n
& (n
-1)) == 0);
3604 /* Allocation function for the libiberty hash table which uses an
3605 obstack. The obstack is passed as DATA. */
3608 hashtab_obstack_allocate (void *data
, size_t size
, size_t count
)
3610 unsigned int total
= size
* count
;
3611 void *ptr
= obstack_alloc ((struct obstack
*) data
, total
);
3613 memset (ptr
, 0, total
);
3617 /* Trivial deallocation function for the libiberty splay tree and hash
3618 table - don't deallocate anything. Rely on later deletion of the
3619 obstack. DATA will be the obstack, although it is not needed
3623 dummy_obstack_deallocate (void *object
, void *data
)
3628 /* The bit offset of the highest byte in a ULONGEST, for overflow
3631 #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT)
3633 /* True (non-zero) iff DIGIT is a valid digit in radix BASE,
3634 where 2 <= BASE <= 36. */
3637 is_digit_in_base (unsigned char digit
, int base
)
3639 if (!isalnum (digit
))
3642 return (isdigit (digit
) && digit
< base
+ '0');
3644 return (isdigit (digit
) || tolower (digit
) < base
- 10 + 'a');
3648 digit_to_int (unsigned char c
)
3653 return tolower (c
) - 'a' + 10;
3656 /* As for strtoul, but for ULONGEST results. */
3659 strtoulst (const char *num
, const char **trailer
, int base
)
3661 unsigned int high_part
;
3666 /* Skip leading whitespace. */
3667 while (isspace (num
[i
]))
3670 /* Handle prefixes. */
3673 else if (num
[i
] == '-')
3679 if (base
== 0 || base
== 16)
3681 if (num
[i
] == '0' && (num
[i
+ 1] == 'x' || num
[i
+ 1] == 'X'))
3689 if (base
== 0 && num
[i
] == '0')
3695 if (base
< 2 || base
> 36)
3701 result
= high_part
= 0;
3702 for (; is_digit_in_base (num
[i
], base
); i
+= 1)
3704 result
= result
* base
+ digit_to_int (num
[i
]);
3705 high_part
= high_part
* base
+ (unsigned int) (result
>> HIGH_BYTE_POSN
);
3706 result
&= ((ULONGEST
) 1 << HIGH_BYTE_POSN
) - 1;
3707 if (high_part
> 0xff)
3710 result
= ~ (ULONGEST
) 0;
3717 if (trailer
!= NULL
)
3720 result
= result
+ ((ULONGEST
) high_part
<< HIGH_BYTE_POSN
);
3727 /* Simple, portable version of dirname that does not modify its
3731 ldirname (const char *filename
)
3733 const char *base
= lbasename (filename
);
3736 while (base
> filename
&& IS_DIR_SEPARATOR (base
[-1]))
3739 if (base
== filename
)
3742 dirname
= xmalloc (base
- filename
+ 2);
3743 memcpy (dirname
, filename
, base
- filename
);
3745 /* On DOS based file systems, convert "d:foo" to "d:.", so that we
3746 create "d:./bar" later instead of the (different) "d:/bar". */
3747 if (base
- filename
== 2 && IS_ABSOLUTE_PATH (base
)
3748 && !IS_DIR_SEPARATOR (filename
[0]))
3749 dirname
[base
++ - filename
] = '.';
3751 dirname
[base
- filename
] = '\0';
3755 /* Call libiberty's buildargv, and return the result.
3756 If buildargv fails due to out-of-memory, call nomem.
3757 Therefore, the returned value is guaranteed to be non-NULL,
3758 unless the parameter itself is NULL. */
3761 gdb_buildargv (const char *s
)
3763 char **argv
= buildargv (s
);
3765 if (s
!= NULL
&& argv
== NULL
)
3771 compare_positive_ints (const void *ap
, const void *bp
)
3773 /* Because we know we're comparing two ints which are positive,
3774 there's no danger of overflow here. */
3775 return * (int *) ap
- * (int *) bp
;
3778 #define AMBIGUOUS_MESS1 ".\nMatching formats:"
3779 #define AMBIGUOUS_MESS2 ".\nUse \"set gnutarget format-name\" to specify the format."
3782 gdb_bfd_errmsg (bfd_error_type error_tag
, char **matching
)
3788 /* Check if errmsg just need simple return. */
3789 if (error_tag
!= bfd_error_file_ambiguously_recognized
|| matching
== NULL
)
3790 return bfd_errmsg (error_tag
);
3792 ret_len
= strlen (bfd_errmsg (error_tag
)) + strlen (AMBIGUOUS_MESS1
)
3793 + strlen (AMBIGUOUS_MESS2
);
3794 for (p
= matching
; *p
; p
++)
3795 ret_len
+= strlen (*p
) + 1;
3796 ret
= xmalloc (ret_len
+ 1);
3798 make_cleanup (xfree
, ret
);
3800 strcpy (retp
, bfd_errmsg (error_tag
));
3801 retp
+= strlen (retp
);
3803 strcpy (retp
, AMBIGUOUS_MESS1
);
3804 retp
+= strlen (retp
);
3806 for (p
= matching
; *p
; p
++)
3808 sprintf (retp
, " %s", *p
);
3809 retp
+= strlen (retp
);
3813 strcpy (retp
, AMBIGUOUS_MESS2
);
3818 /* Return ARGS parsed as a valid pid, or throw an error. */
3821 parse_pid_to_attach (char *args
)
3827 error_no_arg (_("process-id to attach"));
3830 pid
= strtoul (args
, &dummy
, 0);
3831 /* Some targets don't set errno on errors, grrr! */
3832 if ((pid
== 0 && dummy
== args
) || dummy
!= &args
[strlen (args
)])
3833 error (_("Illegal process-id: %s."), args
);
3838 /* Provide a prototype to silence -Wmissing-prototypes. */
3839 extern initialize_file_ftype _initialize_utils
;
3842 _initialize_utils (void)
3844 add_internal_problem_command (&internal_error_problem
);
3845 add_internal_problem_command (&internal_warning_problem
);