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, 2011 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 "dyn-string.h"
24 #include "gdb_assert.h"
26 #include "gdb_string.h"
27 #include "event-top.h"
28 #include "exceptions.h"
29 #include "gdbthread.h"
30 #ifdef HAVE_SYS_RESOURCE_H
31 #include <sys/resource.h>
32 #endif /* HAVE_SYS_RESOURCE_H */
35 #include "tui/tui.h" /* For tui_get_command_dimension. */
42 /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */
53 #include "expression.h"
57 #include "filenames.h"
59 #include "gdb_obstack.h"
65 #include "inferior.h" /* for signed_pointer_to_address */
67 #include <sys/param.h> /* For MAXPATHLEN */
69 #include "gdb_curses.h"
71 #include "readline/readline.h"
76 #include "gdb_usleep.h"
78 #include "gdb_regex.h"
81 extern PTR
malloc (); /* ARI: PTR */
83 #if !HAVE_DECL_REALLOC
84 extern PTR
realloc (); /* ARI: PTR */
90 /* readline defines this. */
93 void (*deprecated_error_begin_hook
) (void);
95 /* Prototypes for local functions */
97 static void vfprintf_maybe_filtered (struct ui_file
*, const char *,
98 va_list, int) ATTRIBUTE_PRINTF (2, 0);
100 static void fputs_maybe_filtered (const char *, struct ui_file
*, int);
102 static void do_my_cleanups (struct cleanup
**, struct cleanup
*);
104 static void prompt_for_continue (void);
106 static void set_screen_size (void);
107 static void set_width (void);
109 /* A flag indicating whether to timestamp debugging messages. */
111 static int debug_timestamp
= 0;
113 /* Chain of cleanup actions established with make_cleanup,
114 to be executed if an error happens. */
116 static struct cleanup
*cleanup_chain
; /* cleaned up after a failed command */
117 static struct cleanup
*final_cleanup_chain
; /* cleaned up when gdb exits */
119 /* Nonzero if we have job control. */
123 /* Nonzero means a quit has been requested. */
127 /* Nonzero means quit immediately if Control-C is typed now, rather
128 than waiting until QUIT is executed. Be careful in setting this;
129 code which executes with immediate_quit set has to be very careful
130 about being able to deal with being interrupted at any time. It is
131 almost always better to use QUIT; the only exception I can think of
132 is being able to quit out of a system call (using EINTR loses if
133 the SIGINT happens between the previous QUIT and the system call).
134 To immediately quit in the case in which a SIGINT happens between
135 the previous QUIT and setting immediate_quit (desirable anytime we
136 expect to block), call QUIT after setting immediate_quit. */
140 /* Nonzero means that encoded C++/ObjC names should be printed out in their
141 C++/ObjC form rather than raw. */
145 show_demangle (struct ui_file
*file
, int from_tty
,
146 struct cmd_list_element
*c
, const char *value
)
148 fprintf_filtered (file
,
149 _("Demangling of encoded C++/ObjC names "
150 "when displaying symbols is %s.\n"),
154 /* Nonzero means that encoded C++/ObjC names should be printed out in their
155 C++/ObjC form even in assembler language displays. If this is set, but
156 DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */
158 int asm_demangle
= 0;
160 show_asm_demangle (struct ui_file
*file
, int from_tty
,
161 struct cmd_list_element
*c
, const char *value
)
163 fprintf_filtered (file
,
164 _("Demangling of C++/ObjC names in "
165 "disassembly listings is %s.\n"),
169 /* Nonzero means that strings with character values >0x7F should be printed
170 as octal escapes. Zero means just print the value (e.g. it's an
171 international character, and the terminal or window can cope.) */
173 int sevenbit_strings
= 0;
175 show_sevenbit_strings (struct ui_file
*file
, int from_tty
,
176 struct cmd_list_element
*c
, const char *value
)
178 fprintf_filtered (file
, _("Printing of 8-bit characters "
179 "in strings as \\nnn is %s.\n"),
183 /* String to be printed before error messages, if any. */
185 char *error_pre_print
;
187 /* String to be printed before quit messages, if any. */
189 char *quit_pre_print
;
191 /* String to be printed before warning messages, if any. */
193 char *warning_pre_print
= "\nwarning: ";
195 int pagination_enabled
= 1;
197 show_pagination_enabled (struct ui_file
*file
, int from_tty
,
198 struct cmd_list_element
*c
, const char *value
)
200 fprintf_filtered (file
, _("State of pagination is %s.\n"), value
);
205 /* Add a new cleanup to the cleanup_chain,
206 and return the previous chain pointer
207 to be passed later to do_cleanups or discard_cleanups.
208 Args are FUNCTION to clean up with, and ARG to pass to it. */
211 make_cleanup (make_cleanup_ftype
*function
, void *arg
)
213 return make_my_cleanup (&cleanup_chain
, function
, arg
);
217 make_cleanup_dtor (make_cleanup_ftype
*function
, void *arg
,
218 void (*dtor
) (void *))
220 return make_my_cleanup2 (&cleanup_chain
,
221 function
, arg
, dtor
);
225 make_final_cleanup (make_cleanup_ftype
*function
, void *arg
)
227 return make_my_cleanup (&final_cleanup_chain
, function
, arg
);
231 do_freeargv (void *arg
)
233 freeargv ((char **) arg
);
237 make_cleanup_freeargv (char **arg
)
239 return make_my_cleanup (&cleanup_chain
, do_freeargv
, arg
);
243 do_dyn_string_delete (void *arg
)
245 dyn_string_delete ((dyn_string_t
) arg
);
249 make_cleanup_dyn_string_delete (dyn_string_t arg
)
251 return make_my_cleanup (&cleanup_chain
, do_dyn_string_delete
, arg
);
255 do_bfd_close_cleanup (void *arg
)
261 make_cleanup_bfd_close (bfd
*abfd
)
263 return make_cleanup (do_bfd_close_cleanup
, abfd
);
267 do_close_cleanup (void *arg
)
275 make_cleanup_close (int fd
)
277 int *saved_fd
= xmalloc (sizeof (fd
));
280 return make_cleanup_dtor (do_close_cleanup
, saved_fd
, xfree
);
283 /* Helper function which does the work for make_cleanup_fclose. */
286 do_fclose_cleanup (void *arg
)
293 /* Return a new cleanup that closes FILE. */
296 make_cleanup_fclose (FILE *file
)
298 return make_cleanup (do_fclose_cleanup
, file
);
301 /* Helper function which does the work for make_cleanup_obstack_free. */
304 do_obstack_free (void *arg
)
306 struct obstack
*ob
= arg
;
308 obstack_free (ob
, NULL
);
311 /* Return a new cleanup that frees OBSTACK. */
314 make_cleanup_obstack_free (struct obstack
*obstack
)
316 return make_cleanup (do_obstack_free
, obstack
);
320 do_ui_file_delete (void *arg
)
322 ui_file_delete (arg
);
326 make_cleanup_ui_file_delete (struct ui_file
*arg
)
328 return make_my_cleanup (&cleanup_chain
, do_ui_file_delete
, arg
);
331 /* Helper function for make_cleanup_ui_out_redirect_pop. */
334 do_ui_out_redirect_pop (void *arg
)
336 struct ui_out
*uiout
= arg
;
338 if (ui_out_redirect (uiout
, NULL
) < 0)
339 warning (_("Cannot restore redirection of the current output protocol"));
342 /* Return a new cleanup that pops the last redirection by ui_out_redirect
343 with NULL parameter. */
346 make_cleanup_ui_out_redirect_pop (struct ui_out
*uiout
)
348 return make_my_cleanup (&cleanup_chain
, do_ui_out_redirect_pop
, uiout
);
352 do_free_section_addr_info (void *arg
)
354 free_section_addr_info (arg
);
358 make_cleanup_free_section_addr_info (struct section_addr_info
*addrs
)
360 return make_my_cleanup (&cleanup_chain
, do_free_section_addr_info
, addrs
);
363 struct restore_integer_closure
370 restore_integer (void *p
)
372 struct restore_integer_closure
*closure
= p
;
374 *(closure
->variable
) = closure
->value
;
377 /* Remember the current value of *VARIABLE and make it restored when
378 the cleanup is run. */
381 make_cleanup_restore_integer (int *variable
)
383 struct restore_integer_closure
*c
=
384 xmalloc (sizeof (struct restore_integer_closure
));
386 c
->variable
= variable
;
387 c
->value
= *variable
;
389 return make_my_cleanup2 (&cleanup_chain
, restore_integer
, (void *)c
,
393 /* Remember the current value of *VARIABLE and make it restored when
394 the cleanup is run. */
397 make_cleanup_restore_uinteger (unsigned int *variable
)
399 return make_cleanup_restore_integer ((int *) variable
);
402 /* Helper for make_cleanup_unpush_target. */
405 do_unpush_target (void *arg
)
407 struct target_ops
*ops
= arg
;
412 /* Return a new cleanup that unpushes OPS. */
415 make_cleanup_unpush_target (struct target_ops
*ops
)
417 return make_my_cleanup (&cleanup_chain
, do_unpush_target
, ops
);
420 /* Helper for make_cleanup_htab_delete compile time checking the types. */
423 do_htab_delete_cleanup (void *htab_voidp
)
425 htab_t htab
= htab_voidp
;
430 /* Return a new cleanup that deletes HTAB. */
433 make_cleanup_htab_delete (htab_t htab
)
435 return make_cleanup (do_htab_delete_cleanup
, htab
);
438 struct restore_ui_file_closure
440 struct ui_file
**variable
;
441 struct ui_file
*value
;
445 do_restore_ui_file (void *p
)
447 struct restore_ui_file_closure
*closure
= p
;
449 *(closure
->variable
) = closure
->value
;
452 /* Remember the current value of *VARIABLE and make it restored when
453 the cleanup is run. */
456 make_cleanup_restore_ui_file (struct ui_file
**variable
)
458 struct restore_ui_file_closure
*c
= XNEW (struct restore_ui_file_closure
);
460 c
->variable
= variable
;
461 c
->value
= *variable
;
463 return make_cleanup_dtor (do_restore_ui_file
, (void *) c
, xfree
);
466 /* Helper for make_cleanup_value_free_to_mark. */
469 do_value_free_to_mark (void *value
)
471 value_free_to_mark ((struct value
*) value
);
474 /* Free all values allocated since MARK was obtained by value_mark
475 (except for those released) when the cleanup is run. */
478 make_cleanup_value_free_to_mark (struct value
*mark
)
480 return make_my_cleanup (&cleanup_chain
, do_value_free_to_mark
, mark
);
483 /* Helper for make_cleanup_value_free. */
486 do_value_free (void *value
)
494 make_cleanup_value_free (struct value
*value
)
496 return make_my_cleanup (&cleanup_chain
, do_value_free
, value
);
499 /* Helper for make_cleanup_free_so. */
502 do_free_so (void *arg
)
504 struct so_list
*so
= arg
;
509 /* Make cleanup handler calling free_so for SO. */
512 make_cleanup_free_so (struct so_list
*so
)
514 return make_my_cleanup (&cleanup_chain
, do_free_so
, so
);
518 make_my_cleanup2 (struct cleanup
**pmy_chain
, make_cleanup_ftype
*function
,
519 void *arg
, void (*free_arg
) (void *))
522 = (struct cleanup
*) xmalloc (sizeof (struct cleanup
));
523 struct cleanup
*old_chain
= *pmy_chain
;
525 new->next
= *pmy_chain
;
526 new->function
= function
;
527 new->free_arg
= free_arg
;
535 make_my_cleanup (struct cleanup
**pmy_chain
, make_cleanup_ftype
*function
,
538 return make_my_cleanup2 (pmy_chain
, function
, arg
, NULL
);
541 /* Discard cleanups and do the actions they describe
542 until we get back to the point OLD_CHAIN in the cleanup_chain. */
545 do_cleanups (struct cleanup
*old_chain
)
547 do_my_cleanups (&cleanup_chain
, old_chain
);
551 do_final_cleanups (struct cleanup
*old_chain
)
553 do_my_cleanups (&final_cleanup_chain
, old_chain
);
557 do_my_cleanups (struct cleanup
**pmy_chain
,
558 struct cleanup
*old_chain
)
562 while ((ptr
= *pmy_chain
) != old_chain
)
564 *pmy_chain
= ptr
->next
; /* Do this first in case of recursion. */
565 (*ptr
->function
) (ptr
->arg
);
567 (*ptr
->free_arg
) (ptr
->arg
);
572 /* Discard cleanups, not doing the actions they describe,
573 until we get back to the point OLD_CHAIN in the cleanup_chain. */
576 discard_cleanups (struct cleanup
*old_chain
)
578 discard_my_cleanups (&cleanup_chain
, old_chain
);
582 discard_final_cleanups (struct cleanup
*old_chain
)
584 discard_my_cleanups (&final_cleanup_chain
, old_chain
);
588 discard_my_cleanups (struct cleanup
**pmy_chain
,
589 struct cleanup
*old_chain
)
593 while ((ptr
= *pmy_chain
) != old_chain
)
595 *pmy_chain
= ptr
->next
;
597 (*ptr
->free_arg
) (ptr
->arg
);
602 /* Set the cleanup_chain to 0, and return the old cleanup chain. */
606 return save_my_cleanups (&cleanup_chain
);
610 save_final_cleanups (void)
612 return save_my_cleanups (&final_cleanup_chain
);
616 save_my_cleanups (struct cleanup
**pmy_chain
)
618 struct cleanup
*old_chain
= *pmy_chain
;
624 /* Restore the cleanup chain from a previously saved chain. */
626 restore_cleanups (struct cleanup
*chain
)
628 restore_my_cleanups (&cleanup_chain
, chain
);
632 restore_final_cleanups (struct cleanup
*chain
)
634 restore_my_cleanups (&final_cleanup_chain
, chain
);
638 restore_my_cleanups (struct cleanup
**pmy_chain
, struct cleanup
*chain
)
643 /* This function is useful for cleanups.
647 old_chain = make_cleanup (free_current_contents, &foo);
649 to arrange to free the object thus allocated. */
652 free_current_contents (void *ptr
)
654 void **location
= ptr
;
656 if (location
== NULL
)
657 internal_error (__FILE__
, __LINE__
,
658 _("free_current_contents: NULL pointer"));
659 if (*location
!= NULL
)
666 /* Provide a known function that does nothing, to use as a base for
667 a possibly long chain of cleanups. This is useful where we
668 use the cleanup chain for handling normal cleanups as well as dealing
669 with cleanups that need to be done as a result of a call to error().
670 In such cases, we may not be certain where the first cleanup is, unless
671 we have a do-nothing one to always use as the base. */
674 null_cleanup (void *arg
)
678 /* If nonzero, display time usage both at startup and for each command. */
680 static int display_time
;
682 /* If nonzero, display space usage both at startup and for each command. */
684 static int display_space
;
686 /* Records a run time and space usage to be used as a base for
687 reporting elapsed time or change in space. In addition,
688 the msg_type field indicates whether the saved time is from the
689 beginning of GDB execution (0) or the beginning of an individual
690 command execution (1). */
698 /* Set whether to display time statistics to NEW_VALUE (non-zero
701 set_display_time (int new_value
)
703 display_time
= new_value
;
706 /* Set whether to display space statistics to NEW_VALUE (non-zero
709 set_display_space (int new_value
)
711 display_space
= new_value
;
714 /* As indicated by display_time and display_space, report GDB's elapsed time
715 and space usage from the base time and space provided in ARG, which
716 must be a pointer to a struct cmd_stat. This function is intended
717 to be called as a cleanup. */
719 report_command_stats (void *arg
)
721 struct cmd_stats
*start_stats
= (struct cmd_stats
*) arg
;
722 int msg_type
= start_stats
->msg_type
;
726 long cmd_time
= get_run_time () - start_stats
->start_time
;
728 printf_unfiltered (msg_type
== 0
729 ? _("Startup time: %ld.%06ld\n")
730 : _("Command execution time: %ld.%06ld\n"),
731 cmd_time
/ 1000000, cmd_time
% 1000000);
737 char *lim
= (char *) sbrk (0);
739 long space_now
= lim
- lim_at_start
;
740 long space_diff
= space_now
- start_stats
->start_space
;
742 printf_unfiltered (msg_type
== 0
743 ? _("Space used: %ld (%s%ld during startup)\n")
744 : _("Space used: %ld (%s%ld for this command)\n"),
746 (space_diff
>= 0 ? "+" : ""),
752 /* Create a cleanup that reports time and space used since its
753 creation. Precise messages depend on MSG_TYPE:
754 0: Initial time/space
755 1: Individual command time/space. */
757 make_command_stats_cleanup (int msg_type
)
759 struct cmd_stats
*new_stat
= XMALLOC (struct cmd_stats
);
762 char *lim
= (char *) sbrk (0);
763 new_stat
->start_space
= lim
- lim_at_start
;
766 new_stat
->msg_type
= msg_type
;
767 new_stat
->start_time
= get_run_time ();
769 return make_cleanup_dtor (report_command_stats
, new_stat
, xfree
);
774 /* Print a warning message. The first argument STRING is the warning
775 message, used as an fprintf format string, the second is the
776 va_list of arguments for that string. A warning is unfiltered (not
777 paginated) so that the user does not need to page through each
778 screen full of warnings when there are lots of them. */
781 vwarning (const char *string
, va_list args
)
783 if (deprecated_warning_hook
)
784 (*deprecated_warning_hook
) (string
, args
);
787 target_terminal_ours ();
788 wrap_here (""); /* Force out any buffered output. */
789 gdb_flush (gdb_stdout
);
790 if (warning_pre_print
)
791 fputs_unfiltered (warning_pre_print
, gdb_stderr
);
792 vfprintf_unfiltered (gdb_stderr
, string
, args
);
793 fprintf_unfiltered (gdb_stderr
, "\n");
798 /* Print a warning message.
799 The first argument STRING is the warning message, used as a fprintf string,
800 and the remaining args are passed as arguments to it.
801 The primary difference between warnings and errors is that a warning
802 does not force the return to command level. */
805 warning (const char *string
, ...)
809 va_start (args
, string
);
810 vwarning (string
, args
);
814 /* Print an error message and return to command level.
815 The first argument STRING is the error message, used as a fprintf string,
816 and the remaining args are passed as arguments to it. */
819 verror (const char *string
, va_list args
)
821 throw_verror (GENERIC_ERROR
, string
, args
);
825 error (const char *string
, ...)
829 va_start (args
, string
);
830 throw_verror (GENERIC_ERROR
, string
, args
);
834 /* Print an error message and quit.
835 The first argument STRING is the error message, used as a fprintf string,
836 and the remaining args are passed as arguments to it. */
839 vfatal (const char *string
, va_list args
)
841 throw_vfatal (string
, args
);
845 fatal (const char *string
, ...)
849 va_start (args
, string
);
850 throw_vfatal (string
, args
);
855 error_stream (struct ui_file
*stream
)
857 char *message
= ui_file_xstrdup (stream
, NULL
);
859 make_cleanup (xfree
, message
);
860 error (("%s"), message
);
863 /* Dump core trying to increase the core soft limit to hard limit first. */
868 #ifdef HAVE_SETRLIMIT
869 struct rlimit rlim
= { RLIM_INFINITY
, RLIM_INFINITY
};
871 setrlimit (RLIMIT_CORE
, &rlim
);
872 #endif /* HAVE_SETRLIMIT */
874 abort (); /* NOTE: GDB has only three calls to abort(). */
877 /* Check whether GDB will be able to dump core using the dump_core
881 can_dump_core (const char *reason
)
883 #ifdef HAVE_GETRLIMIT
886 /* Be quiet and assume we can dump if an error is returned. */
887 if (getrlimit (RLIMIT_CORE
, &rlim
) != 0)
890 if (rlim
.rlim_max
== 0)
892 fprintf_unfiltered (gdb_stderr
,
893 _("%s\nUnable to dump core, use `ulimit -c"
894 " unlimited' before executing GDB next time.\n"),
898 #endif /* HAVE_GETRLIMIT */
903 /* Allow the user to configure the debugger behavior with respect to
904 what to do when an internal problem is detected. */
906 const char internal_problem_ask
[] = "ask";
907 const char internal_problem_yes
[] = "yes";
908 const char internal_problem_no
[] = "no";
909 static const char *internal_problem_modes
[] =
911 internal_problem_ask
,
912 internal_problem_yes
,
917 /* Print a message reporting an internal error/warning. Ask the user
918 if they want to continue, dump core, or just exit. Return
919 something to indicate a quit. */
921 struct internal_problem
924 const char *should_quit
;
925 const char *should_dump_core
;
928 /* Report a problem, internal to GDB, to the user. Once the problem
929 has been reported, and assuming GDB didn't quit, the caller can
930 either allow execution to resume or throw an error. */
932 static void ATTRIBUTE_PRINTF (4, 0)
933 internal_vproblem (struct internal_problem
*problem
,
934 const char *file
, int line
, const char *fmt
, va_list ap
)
941 /* Don't allow infinite error/warning recursion. */
943 static char msg
[] = "Recursive internal problem.\n";
952 fputs_unfiltered (msg
, gdb_stderr
);
953 abort (); /* NOTE: GDB has only three calls to abort(). */
956 /* Newer GLIBC versions put the warn_unused_result attribute
957 on write, but this is one of those rare cases where
958 ignoring the return value is correct. Casting to (void)
959 does not fix this problem. This is the solution suggested
960 at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509. */
961 if (write (STDERR_FILENO
, msg
, sizeof (msg
)) != sizeof (msg
))
962 abort (); /* NOTE: GDB has only three calls to abort(). */
967 /* Try to get the message out and at the start of a new line. */
968 target_terminal_ours ();
971 /* Create a string containing the full error/warning message. Need
972 to call query with this full string, as otherwize the reason
973 (error/warning) and question become separated. Format using a
974 style similar to a compiler error message. Include extra detail
975 so that the user knows that they are living on the edge. */
979 msg
= xstrvprintf (fmt
, ap
);
980 reason
= xstrprintf ("%s:%d: %s: %s\n"
981 "A problem internal to GDB has been detected,\n"
982 "further debugging may prove unreliable.",
983 file
, line
, problem
->name
, msg
);
985 make_cleanup (xfree
, reason
);
988 if (problem
->should_quit
== internal_problem_ask
)
990 /* Default (yes/batch case) is to quit GDB. When in batch mode
991 this lessens the likelihood of GDB going into an infinite
995 /* Emit the message and quit. */
996 fputs_unfiltered (reason
, gdb_stderr
);
997 fputs_unfiltered ("\n", gdb_stderr
);
1001 quit_p
= query (_("%s\nQuit this debugging session? "), reason
);
1003 else if (problem
->should_quit
== internal_problem_yes
)
1005 else if (problem
->should_quit
== internal_problem_no
)
1008 internal_error (__FILE__
, __LINE__
, _("bad switch"));
1010 if (problem
->should_dump_core
== internal_problem_ask
)
1012 if (!can_dump_core (reason
))
1016 /* Default (yes/batch case) is to dump core. This leaves a GDB
1017 `dropping' so that it is easier to see that something went
1019 dump_core_p
= query (_("%s\nCreate a core file of GDB? "), reason
);
1022 else if (problem
->should_dump_core
== internal_problem_yes
)
1023 dump_core_p
= can_dump_core (reason
);
1024 else if (problem
->should_dump_core
== internal_problem_no
)
1027 internal_error (__FILE__
, __LINE__
, _("bad switch"));
1040 #ifdef HAVE_WORKING_FORK
1050 static struct internal_problem internal_error_problem
= {
1051 "internal-error", internal_problem_ask
, internal_problem_ask
1055 internal_verror (const char *file
, int line
, const char *fmt
, va_list ap
)
1057 internal_vproblem (&internal_error_problem
, file
, line
, fmt
, ap
);
1058 deprecated_throw_reason (RETURN_ERROR
);
1062 internal_error (const char *file
, int line
, const char *string
, ...)
1066 va_start (ap
, string
);
1067 internal_verror (file
, line
, string
, ap
);
1071 static struct internal_problem internal_warning_problem
= {
1072 "internal-warning", internal_problem_ask
, internal_problem_ask
1076 internal_vwarning (const char *file
, int line
, const char *fmt
, va_list ap
)
1078 internal_vproblem (&internal_warning_problem
, file
, line
, fmt
, ap
);
1082 internal_warning (const char *file
, int line
, const char *string
, ...)
1086 va_start (ap
, string
);
1087 internal_vwarning (file
, line
, string
, ap
);
1091 /* Dummy functions to keep add_prefix_cmd happy. */
1094 set_internal_problem_cmd (char *args
, int from_tty
)
1099 show_internal_problem_cmd (char *args
, int from_tty
)
1103 /* When GDB reports an internal problem (error or warning) it gives
1104 the user the opportunity to quit GDB and/or create a core file of
1105 the current debug session. This function registers a few commands
1106 that make it possible to specify that GDB should always or never
1107 quit or create a core file, without asking. The commands look
1110 maint set PROBLEM-NAME quit ask|yes|no
1111 maint show PROBLEM-NAME quit
1112 maint set PROBLEM-NAME corefile ask|yes|no
1113 maint show PROBLEM-NAME corefile
1115 Where PROBLEM-NAME is currently "internal-error" or
1116 "internal-warning". */
1119 add_internal_problem_command (struct internal_problem
*problem
)
1121 struct cmd_list_element
**set_cmd_list
;
1122 struct cmd_list_element
**show_cmd_list
;
1126 set_cmd_list
= xmalloc (sizeof (*set_cmd_list
));
1127 show_cmd_list
= xmalloc (sizeof (*set_cmd_list
));
1128 *set_cmd_list
= NULL
;
1129 *show_cmd_list
= NULL
;
1131 set_doc
= xstrprintf (_("Configure what GDB does when %s is detected."),
1134 show_doc
= xstrprintf (_("Show what GDB does when %s is detected."),
1137 add_prefix_cmd ((char*) problem
->name
,
1138 class_maintenance
, set_internal_problem_cmd
, set_doc
,
1140 concat ("maintenance set ", problem
->name
, " ",
1142 0/*allow-unknown*/, &maintenance_set_cmdlist
);
1144 add_prefix_cmd ((char*) problem
->name
,
1145 class_maintenance
, show_internal_problem_cmd
, show_doc
,
1147 concat ("maintenance show ", problem
->name
, " ",
1149 0/*allow-unknown*/, &maintenance_show_cmdlist
);
1151 set_doc
= xstrprintf (_("Set whether GDB should quit "
1152 "when an %s is detected"),
1154 show_doc
= xstrprintf (_("Show whether GDB will quit "
1155 "when an %s is detected"),
1157 add_setshow_enum_cmd ("quit", class_maintenance
,
1158 internal_problem_modes
,
1159 &problem
->should_quit
,
1162 NULL
, /* help_doc */
1164 NULL
, /* showfunc */
1171 set_doc
= xstrprintf (_("Set whether GDB should create a core "
1172 "file of GDB when %s is detected"),
1174 show_doc
= xstrprintf (_("Show whether GDB will create a core "
1175 "file of GDB when %s is detected"),
1177 add_setshow_enum_cmd ("corefile", class_maintenance
,
1178 internal_problem_modes
,
1179 &problem
->should_dump_core
,
1182 NULL
, /* help_doc */
1184 NULL
, /* showfunc */
1192 /* Print the system error message for errno, and also mention STRING
1193 as the file name for which the error was encountered.
1194 Then return to command level. */
1197 perror_with_name (const char *string
)
1202 err
= safe_strerror (errno
);
1203 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
1204 strcpy (combined
, string
);
1205 strcat (combined
, ": ");
1206 strcat (combined
, err
);
1208 /* I understand setting these is a matter of taste. Still, some people
1209 may clear errno but not know about bfd_error. Doing this here is not
1211 bfd_set_error (bfd_error_no_error
);
1214 error (_("%s."), combined
);
1217 /* Print the system error message for ERRCODE, and also mention STRING
1218 as the file name for which the error was encountered. */
1221 print_sys_errmsg (const char *string
, int errcode
)
1226 err
= safe_strerror (errcode
);
1227 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
1228 strcpy (combined
, string
);
1229 strcat (combined
, ": ");
1230 strcat (combined
, err
);
1232 /* We want anything which was printed on stdout to come out first, before
1234 gdb_flush (gdb_stdout
);
1235 fprintf_unfiltered (gdb_stderr
, "%s.\n", combined
);
1238 /* Control C eventually causes this to be called, at a convenient time. */
1244 /* No steenking SIGINT will ever be coming our way when the
1245 program is resumed. Don't lie. */
1249 /* If there is no terminal switching for this target, then we can't
1250 possibly get screwed by the lack of job control. */
1251 || current_target
.to_terminal_ours
== NULL
)
1254 fatal ("Quit (expect signal SIGINT when the program is resumed)");
1259 /* Called when a memory allocation fails, with the number of bytes of
1260 memory requested in SIZE. */
1263 malloc_failure (long size
)
1267 internal_error (__FILE__
, __LINE__
,
1268 _("virtual memory exhausted: can't allocate %ld bytes."),
1273 internal_error (__FILE__
, __LINE__
, _("virtual memory exhausted."));
1277 /* My replacement for the read system call.
1278 Used like `read' but keeps going if `read' returns too soon. */
1281 myread (int desc
, char *addr
, int len
)
1288 val
= read (desc
, addr
, len
);
1292 return orglen
- len
;
1299 /* Make a copy of the string at PTR with SIZE characters
1300 (and add a null character at the end in the copy).
1301 Uses malloc to get the space. Returns the address of the copy. */
1304 savestring (const char *ptr
, size_t size
)
1306 char *p
= (char *) xmalloc (size
+ 1);
1308 memcpy (p
, ptr
, size
);
1314 print_spaces (int n
, struct ui_file
*file
)
1316 fputs_unfiltered (n_spaces (n
), file
);
1319 /* Print a host address. */
1322 gdb_print_host_address (const void *addr
, struct ui_file
*stream
)
1324 fprintf_filtered (stream
, "%s", host_address_to_string (addr
));
1328 /* A cleanup function that calls regfree. */
1331 do_regfree_cleanup (void *r
)
1336 /* Create a new cleanup that frees the compiled regular expression R. */
1339 make_regfree_cleanup (regex_t
*r
)
1341 return make_cleanup (do_regfree_cleanup
, r
);
1344 /* Return an xmalloc'd error message resulting from a regular
1345 expression compilation failure. */
1348 get_regcomp_error (int code
, regex_t
*rx
)
1350 size_t length
= regerror (code
, rx
, NULL
, 0);
1351 char *result
= xmalloc (length
);
1353 regerror (code
, rx
, result
, length
);
1359 /* This function supports the query, nquery, and yquery functions.
1360 Ask user a y-or-n question and return 0 if answer is no, 1 if
1361 answer is yes, or default the answer to the specified default
1362 (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a
1363 default answer, or '\0' for no default.
1364 CTLSTR is the control string and should end in "? ". It should
1365 not say how to answer, because we do that.
1366 ARGS are the arguments passed along with the CTLSTR argument to
1369 static int ATTRIBUTE_PRINTF (1, 0)
1370 defaulted_query (const char *ctlstr
, const char defchar
, va_list args
)
1376 char def_answer
, not_def_answer
;
1377 char *y_string
, *n_string
, *question
;
1379 /* Set up according to which answer is the default. */
1380 if (defchar
== '\0')
1384 not_def_answer
= 'N';
1388 else if (defchar
== 'y')
1392 not_def_answer
= 'N';
1400 not_def_answer
= 'Y';
1405 /* Automatically answer the default value if the user did not want
1406 prompts or the command was issued with the server prefix. */
1407 if (! caution
|| server_command
)
1410 /* If input isn't coming from the user directly, just say what
1411 question we're asking, and then answer the default automatically. This
1412 way, important error messages don't get lost when talking to GDB
1414 if (! input_from_terminal_p ())
1417 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1419 printf_filtered (_("(%s or %s) [answered %c; "
1420 "input not from terminal]\n"),
1421 y_string
, n_string
, def_answer
);
1422 gdb_flush (gdb_stdout
);
1427 if (deprecated_query_hook
)
1429 return deprecated_query_hook (ctlstr
, args
);
1432 /* Format the question outside of the loop, to avoid reusing args. */
1433 question
= xstrvprintf (ctlstr
, args
);
1437 wrap_here (""); /* Flush any buffered output. */
1438 gdb_flush (gdb_stdout
);
1440 if (annotation_level
> 1)
1441 printf_filtered (("\n\032\032pre-query\n"));
1443 fputs_filtered (question
, gdb_stdout
);
1444 printf_filtered (_("(%s or %s) "), y_string
, n_string
);
1446 if (annotation_level
> 1)
1447 printf_filtered (("\n\032\032query\n"));
1450 gdb_flush (gdb_stdout
);
1452 answer
= fgetc (stdin
);
1454 /* We expect fgetc to block until a character is read. But
1455 this may not be the case if the terminal was opened with
1456 the NONBLOCK flag. In that case, if there is nothing to
1457 read on stdin, fgetc returns EOF, but also sets the error
1458 condition flag on stdin and errno to EAGAIN. With a true
1459 EOF, stdin's error condition flag is not set.
1461 A situation where this behavior was observed is a pseudo
1463 while (answer
== EOF
&& ferror (stdin
) && errno
== EAGAIN
)
1465 /* Not a real EOF. Wait a little while and try again until
1466 we read something. */
1469 answer
= fgetc (stdin
);
1472 clearerr (stdin
); /* in case of C-d */
1473 if (answer
== EOF
) /* C-d */
1475 printf_filtered ("EOF [assumed %c]\n", def_answer
);
1479 /* Eat rest of input line, to EOF or newline. */
1483 ans2
= fgetc (stdin
);
1486 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1490 /* Check answer. For the non-default, the user must specify
1491 the non-default explicitly. */
1492 if (answer
== not_def_answer
)
1494 retval
= !def_value
;
1497 /* Otherwise, if a default was specified, the user may either
1498 specify the required input or have it default by entering
1500 if (answer
== def_answer
1501 || (defchar
!= '\0' &&
1502 (answer
== '\n' || answer
== '\r' || answer
== EOF
)))
1507 /* Invalid entries are not defaulted and require another selection. */
1508 printf_filtered (_("Please answer %s or %s.\n"),
1509 y_string
, n_string
);
1513 if (annotation_level
> 1)
1514 printf_filtered (("\n\032\032post-query\n"));
1519 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1520 answer is yes, or 0 if answer is defaulted.
1521 Takes three args which are given to printf to print the question.
1522 The first, a control string, should end in "? ".
1523 It should not say how to answer, because we do that. */
1526 nquery (const char *ctlstr
, ...)
1531 va_start (args
, ctlstr
);
1532 ret
= defaulted_query (ctlstr
, 'n', args
);
1537 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1538 answer is yes, or 1 if answer is defaulted.
1539 Takes three args which are given to printf to print the question.
1540 The first, a control string, should end in "? ".
1541 It should not say how to answer, because we do that. */
1544 yquery (const char *ctlstr
, ...)
1549 va_start (args
, ctlstr
);
1550 ret
= defaulted_query (ctlstr
, 'y', args
);
1555 /* Ask user a y-or-n question and return 1 iff answer is yes.
1556 Takes three args which are given to printf to print the question.
1557 The first, a control string, should end in "? ".
1558 It should not say how to answer, because we do that. */
1561 query (const char *ctlstr
, ...)
1566 va_start (args
, ctlstr
);
1567 ret
= defaulted_query (ctlstr
, '\0', args
);
1572 /* A helper for parse_escape that converts a host character to a
1573 target character. C is the host character. If conversion is
1574 possible, then the target character is stored in *TARGET_C and the
1575 function returns 1. Otherwise, the function returns 0. */
1578 host_char_to_target (struct gdbarch
*gdbarch
, int c
, int *target_c
)
1580 struct obstack host_data
;
1582 struct cleanup
*cleanups
;
1585 obstack_init (&host_data
);
1586 cleanups
= make_cleanup_obstack_free (&host_data
);
1588 convert_between_encodings (target_charset (gdbarch
), host_charset (),
1589 &the_char
, 1, 1, &host_data
, translit_none
);
1591 if (obstack_object_size (&host_data
) == 1)
1594 *target_c
= *(char *) obstack_base (&host_data
);
1597 do_cleanups (cleanups
);
1601 /* Parse a C escape sequence. STRING_PTR points to a variable
1602 containing a pointer to the string to parse. That pointer
1603 should point to the character after the \. That pointer
1604 is updated past the characters we use. The value of the
1605 escape sequence is returned.
1607 A negative value means the sequence \ newline was seen,
1608 which is supposed to be equivalent to nothing at all.
1610 If \ is followed by a null character, we return a negative
1611 value and leave the string pointer pointing at the null character.
1613 If \ is followed by 000, we return 0 and leave the string pointer
1614 after the zeros. A value of 0 does not mean end of string. */
1617 parse_escape (struct gdbarch
*gdbarch
, char **string_ptr
)
1619 int target_char
= -2; /* Initialize to avoid GCC warnings. */
1620 int c
= *(*string_ptr
)++;
1639 int i
= host_hex_value (c
);
1644 if (isdigit (c
) && c
!= '8' && c
!= '9')
1648 i
+= host_hex_value (c
);
1684 if (!host_char_to_target (gdbarch
, c
, &target_char
))
1685 error (_("The escape sequence `\\%c' is equivalent to plain `%c',"
1686 " which has no equivalent\nin the `%s' character set."),
1687 c
, c
, target_charset (gdbarch
));
1691 /* Print the character C on STREAM as part of the contents of a literal
1692 string whose delimiter is QUOTER. Note that this routine should only
1693 be call for printing things which are independent of the language
1694 of the program being debugged. */
1697 printchar (int c
, void (*do_fputs
) (const char *, struct ui_file
*),
1698 void (*do_fprintf
) (struct ui_file
*, const char *, ...)
1699 ATTRIBUTE_FPTR_PRINTF_2
, struct ui_file
*stream
, int quoter
)
1701 c
&= 0xFF; /* Avoid sign bit follies */
1703 if (c
< 0x20 || /* Low control chars */
1704 (c
>= 0x7F && c
< 0xA0) || /* DEL, High controls */
1705 (sevenbit_strings
&& c
>= 0x80))
1706 { /* high order bit set */
1710 do_fputs ("\\n", stream
);
1713 do_fputs ("\\b", stream
);
1716 do_fputs ("\\t", stream
);
1719 do_fputs ("\\f", stream
);
1722 do_fputs ("\\r", stream
);
1725 do_fputs ("\\e", stream
);
1728 do_fputs ("\\a", stream
);
1731 do_fprintf (stream
, "\\%.3o", (unsigned int) c
);
1737 if (c
== '\\' || c
== quoter
)
1738 do_fputs ("\\", stream
);
1739 do_fprintf (stream
, "%c", c
);
1743 /* Print the character C on STREAM as part of the contents of a
1744 literal string whose delimiter is QUOTER. Note that these routines
1745 should only be call for printing things which are independent of
1746 the language of the program being debugged. */
1749 fputstr_filtered (const char *str
, int quoter
, struct ui_file
*stream
)
1752 printchar (*str
++, fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1756 fputstr_unfiltered (const char *str
, int quoter
, struct ui_file
*stream
)
1759 printchar (*str
++, fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1763 fputstrn_filtered (const char *str
, int n
, int quoter
,
1764 struct ui_file
*stream
)
1768 for (i
= 0; i
< n
; i
++)
1769 printchar (str
[i
], fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1773 fputstrn_unfiltered (const char *str
, int n
, int quoter
,
1774 struct ui_file
*stream
)
1778 for (i
= 0; i
< n
; i
++)
1779 printchar (str
[i
], fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1783 /* Number of lines per page or UINT_MAX if paging is disabled. */
1784 static unsigned int lines_per_page
;
1786 show_lines_per_page (struct ui_file
*file
, int from_tty
,
1787 struct cmd_list_element
*c
, const char *value
)
1789 fprintf_filtered (file
,
1790 _("Number of lines gdb thinks are in a page is %s.\n"),
1794 /* Number of chars per line or UINT_MAX if line folding is disabled. */
1795 static unsigned int chars_per_line
;
1797 show_chars_per_line (struct ui_file
*file
, int from_tty
,
1798 struct cmd_list_element
*c
, const char *value
)
1800 fprintf_filtered (file
,
1801 _("Number of characters gdb thinks "
1802 "are in a line is %s.\n"),
1806 /* Current count of lines printed on this page, chars on this line. */
1807 static unsigned int lines_printed
, chars_printed
;
1809 /* Buffer and start column of buffered text, for doing smarter word-
1810 wrapping. When someone calls wrap_here(), we start buffering output
1811 that comes through fputs_filtered(). If we see a newline, we just
1812 spit it out and forget about the wrap_here(). If we see another
1813 wrap_here(), we spit it out and remember the newer one. If we see
1814 the end of the line, we spit out a newline, the indent, and then
1815 the buffered output. */
1817 /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which
1818 are waiting to be output (they have already been counted in chars_printed).
1819 When wrap_buffer[0] is null, the buffer is empty. */
1820 static char *wrap_buffer
;
1822 /* Pointer in wrap_buffer to the next character to fill. */
1823 static char *wrap_pointer
;
1825 /* String to indent by if the wrap occurs. Must not be NULL if wrap_column
1827 static char *wrap_indent
;
1829 /* Column number on the screen where wrap_buffer begins, or 0 if wrapping
1830 is not in effect. */
1831 static int wrap_column
;
1834 /* Inialize the number of lines per page and chars per line. */
1837 init_page_info (void)
1841 lines_per_page
= UINT_MAX
;
1842 chars_per_line
= UINT_MAX
;
1846 if (!tui_get_command_dimension (&chars_per_line
, &lines_per_page
))
1851 #if defined(__GO32__)
1852 rows
= ScreenRows ();
1853 cols
= ScreenCols ();
1854 lines_per_page
= rows
;
1855 chars_per_line
= cols
;
1857 /* Make sure Readline has initialized its terminal settings. */
1858 rl_reset_terminal (NULL
);
1860 /* Get the screen size from Readline. */
1861 rl_get_screen_size (&rows
, &cols
);
1862 lines_per_page
= rows
;
1863 chars_per_line
= cols
;
1865 /* Readline should have fetched the termcap entry for us. */
1866 if (tgetnum ("li") < 0 || getenv ("EMACS"))
1868 /* The number of lines per page is not mentioned in the
1869 terminal description. This probably means that paging is
1870 not useful (e.g. emacs shell window), so disable paging. */
1871 lines_per_page
= UINT_MAX
;
1874 /* FIXME: Get rid of this junk. */
1875 #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
1876 SIGWINCH_HANDLER (SIGWINCH
);
1879 /* If the output is not a terminal, don't paginate it. */
1880 if (!ui_file_isatty (gdb_stdout
))
1881 lines_per_page
= UINT_MAX
;
1889 /* Helper for make_cleanup_restore_page_info. */
1892 do_restore_page_info_cleanup (void *arg
)
1898 /* Provide cleanup for restoring the terminal size. */
1901 make_cleanup_restore_page_info (void)
1903 struct cleanup
*back_to
;
1905 back_to
= make_cleanup (do_restore_page_info_cleanup
, NULL
);
1906 make_cleanup_restore_uinteger (&lines_per_page
);
1907 make_cleanup_restore_uinteger (&chars_per_line
);
1912 /* Temporarily set BATCH_FLAG and the associated unlimited terminal size.
1913 Provide cleanup for restoring the original state. */
1916 set_batch_flag_and_make_cleanup_restore_page_info (void)
1918 struct cleanup
*back_to
= make_cleanup_restore_page_info ();
1920 make_cleanup_restore_integer (&batch_flag
);
1927 /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */
1930 set_screen_size (void)
1932 int rows
= lines_per_page
;
1933 int cols
= chars_per_line
;
1941 /* Update Readline's idea of the terminal size. */
1942 rl_set_screen_size (rows
, cols
);
1945 /* Reinitialize WRAP_BUFFER according to the current value of
1951 if (chars_per_line
== 0)
1956 wrap_buffer
= (char *) xmalloc (chars_per_line
+ 2);
1957 wrap_buffer
[0] = '\0';
1960 wrap_buffer
= (char *) xrealloc (wrap_buffer
, chars_per_line
+ 2);
1961 wrap_pointer
= wrap_buffer
; /* Start it at the beginning. */
1965 set_width_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1972 set_height_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1977 /* Wait, so the user can read what's on the screen. Prompt the user
1978 to continue by pressing RETURN. */
1981 prompt_for_continue (void)
1984 char cont_prompt
[120];
1986 if (annotation_level
> 1)
1987 printf_unfiltered (("\n\032\032pre-prompt-for-continue\n"));
1989 strcpy (cont_prompt
,
1990 "---Type <return> to continue, or q <return> to quit---");
1991 if (annotation_level
> 1)
1992 strcat (cont_prompt
, "\n\032\032prompt-for-continue\n");
1994 /* We must do this *before* we call gdb_readline, else it will eventually
1995 call us -- thinking that we're trying to print beyond the end of the
1997 reinitialize_more_filter ();
2000 /* On a real operating system, the user can quit with SIGINT.
2003 'q' is provided on all systems so users don't have to change habits
2004 from system to system, and because telling them what to do in
2005 the prompt is more user-friendly than expecting them to think of
2007 /* Call readline, not gdb_readline, because GO32 readline handles control-C
2008 whereas control-C to gdb_readline will cause the user to get dumped
2010 ignore
= gdb_readline_wrapper (cont_prompt
);
2012 if (annotation_level
> 1)
2013 printf_unfiltered (("\n\032\032post-prompt-for-continue\n"));
2019 while (*p
== ' ' || *p
== '\t')
2022 async_request_quit (0);
2027 /* Now we have to do this again, so that GDB will know that it doesn't
2028 need to save the ---Type <return>--- line at the top of the screen. */
2029 reinitialize_more_filter ();
2031 dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */
2034 /* Reinitialize filter; ie. tell it to reset to original values. */
2037 reinitialize_more_filter (void)
2043 /* Indicate that if the next sequence of characters overflows the line,
2044 a newline should be inserted here rather than when it hits the end.
2045 If INDENT is non-null, it is a string to be printed to indent the
2046 wrapped part on the next line. INDENT must remain accessible until
2047 the next call to wrap_here() or until a newline is printed through
2050 If the line is already overfull, we immediately print a newline and
2051 the indentation, and disable further wrapping.
2053 If we don't know the width of lines, but we know the page height,
2054 we must not wrap words, but should still keep track of newlines
2055 that were explicitly printed.
2057 INDENT should not contain tabs, as that will mess up the char count
2058 on the next line. FIXME.
2060 This routine is guaranteed to force out any output which has been
2061 squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be
2062 used to force out output from the wrap_buffer. */
2065 wrap_here (char *indent
)
2067 /* This should have been allocated, but be paranoid anyway. */
2069 internal_error (__FILE__
, __LINE__
,
2070 _("failed internal consistency check"));
2074 *wrap_pointer
= '\0';
2075 fputs_unfiltered (wrap_buffer
, gdb_stdout
);
2077 wrap_pointer
= wrap_buffer
;
2078 wrap_buffer
[0] = '\0';
2079 if (chars_per_line
== UINT_MAX
) /* No line overflow checking. */
2083 else if (chars_printed
>= chars_per_line
)
2085 puts_filtered ("\n");
2087 puts_filtered (indent
);
2092 wrap_column
= chars_printed
;
2096 wrap_indent
= indent
;
2100 /* Print input string to gdb_stdout, filtered, with wrap,
2101 arranging strings in columns of n chars. String can be
2102 right or left justified in the column. Never prints
2103 trailing spaces. String should never be longer than
2104 width. FIXME: this could be useful for the EXAMINE
2105 command, which currently doesn't tabulate very well. */
2108 puts_filtered_tabular (char *string
, int width
, int right
)
2114 gdb_assert (chars_per_line
> 0);
2115 if (chars_per_line
== UINT_MAX
)
2117 fputs_filtered (string
, gdb_stdout
);
2118 fputs_filtered ("\n", gdb_stdout
);
2122 if (((chars_printed
- 1) / width
+ 2) * width
>= chars_per_line
)
2123 fputs_filtered ("\n", gdb_stdout
);
2125 if (width
>= chars_per_line
)
2126 width
= chars_per_line
- 1;
2128 stringlen
= strlen (string
);
2130 if (chars_printed
> 0)
2131 spaces
= width
- (chars_printed
- 1) % width
- 1;
2133 spaces
+= width
- stringlen
;
2135 spacebuf
= alloca (spaces
+ 1);
2136 spacebuf
[spaces
] = '\0';
2138 spacebuf
[spaces
] = ' ';
2140 fputs_filtered (spacebuf
, gdb_stdout
);
2141 fputs_filtered (string
, gdb_stdout
);
2145 /* Ensure that whatever gets printed next, using the filtered output
2146 commands, starts at the beginning of the line. I.e. if there is
2147 any pending output for the current line, flush it and start a new
2148 line. Otherwise do nothing. */
2153 if (chars_printed
> 0)
2155 puts_filtered ("\n");
2160 /* Like fputs but if FILTER is true, pause after every screenful.
2162 Regardless of FILTER can wrap at points other than the final
2163 character of a line.
2165 Unlike fputs, fputs_maybe_filtered does not return a value.
2166 It is OK for LINEBUFFER to be NULL, in which case just don't print
2169 Note that a longjmp to top level may occur in this routine (only if
2170 FILTER is true) (since prompt_for_continue may do so) so this
2171 routine should not be called when cleanups are not in place. */
2174 fputs_maybe_filtered (const char *linebuffer
, struct ui_file
*stream
,
2177 const char *lineptr
;
2179 if (linebuffer
== 0)
2182 /* Don't do any filtering if it is disabled. */
2183 if (stream
!= gdb_stdout
2184 || !pagination_enabled
2186 || (lines_per_page
== UINT_MAX
&& chars_per_line
== UINT_MAX
)
2187 || top_level_interpreter () == NULL
2188 || ui_out_is_mi_like_p (interp_ui_out (top_level_interpreter ())))
2190 fputs_unfiltered (linebuffer
, stream
);
2194 /* Go through and output each character. Show line extension
2195 when this is necessary; prompt user for new page when this is
2198 lineptr
= linebuffer
;
2201 /* Possible new page. */
2202 if (filter
&& (lines_printed
>= lines_per_page
- 1))
2203 prompt_for_continue ();
2205 while (*lineptr
&& *lineptr
!= '\n')
2207 /* Print a single line. */
2208 if (*lineptr
== '\t')
2211 *wrap_pointer
++ = '\t';
2213 fputc_unfiltered ('\t', stream
);
2214 /* Shifting right by 3 produces the number of tab stops
2215 we have already passed, and then adding one and
2216 shifting left 3 advances to the next tab stop. */
2217 chars_printed
= ((chars_printed
>> 3) + 1) << 3;
2223 *wrap_pointer
++ = *lineptr
;
2225 fputc_unfiltered (*lineptr
, stream
);
2230 if (chars_printed
>= chars_per_line
)
2232 unsigned int save_chars
= chars_printed
;
2236 /* If we aren't actually wrapping, don't output newline --
2237 if chars_per_line is right, we probably just overflowed
2238 anyway; if it's wrong, let us keep going. */
2240 fputc_unfiltered ('\n', stream
);
2242 /* Possible new page. */
2243 if (lines_printed
>= lines_per_page
- 1)
2244 prompt_for_continue ();
2246 /* Now output indentation and wrapped string. */
2249 fputs_unfiltered (wrap_indent
, stream
);
2250 *wrap_pointer
= '\0'; /* Null-terminate saved stuff, */
2251 fputs_unfiltered (wrap_buffer
, stream
); /* and eject it. */
2252 /* FIXME, this strlen is what prevents wrap_indent from
2253 containing tabs. However, if we recurse to print it
2254 and count its chars, we risk trouble if wrap_indent is
2255 longer than (the user settable) chars_per_line.
2256 Note also that this can set chars_printed > chars_per_line
2257 if we are printing a long string. */
2258 chars_printed
= strlen (wrap_indent
)
2259 + (save_chars
- wrap_column
);
2260 wrap_pointer
= wrap_buffer
; /* Reset buffer */
2261 wrap_buffer
[0] = '\0';
2262 wrap_column
= 0; /* And disable fancy wrap */
2267 if (*lineptr
== '\n')
2270 wrap_here ((char *) 0); /* Spit out chars, cancel
2273 fputc_unfiltered ('\n', stream
);
2280 fputs_filtered (const char *linebuffer
, struct ui_file
*stream
)
2282 fputs_maybe_filtered (linebuffer
, stream
, 1);
2286 putchar_unfiltered (int c
)
2290 ui_file_write (gdb_stdout
, &buf
, 1);
2294 /* Write character C to gdb_stdout using GDB's paging mechanism and return C.
2295 May return nonlocally. */
2298 putchar_filtered (int c
)
2300 return fputc_filtered (c
, gdb_stdout
);
2304 fputc_unfiltered (int c
, struct ui_file
*stream
)
2308 ui_file_write (stream
, &buf
, 1);
2313 fputc_filtered (int c
, struct ui_file
*stream
)
2319 fputs_filtered (buf
, stream
);
2323 /* puts_debug is like fputs_unfiltered, except it prints special
2324 characters in printable fashion. */
2327 puts_debug (char *prefix
, char *string
, char *suffix
)
2331 /* Print prefix and suffix after each line. */
2332 static int new_line
= 1;
2333 static int return_p
= 0;
2334 static char *prev_prefix
= "";
2335 static char *prev_suffix
= "";
2337 if (*string
== '\n')
2340 /* If the prefix is changing, print the previous suffix, a new line,
2341 and the new prefix. */
2342 if ((return_p
|| (strcmp (prev_prefix
, prefix
) != 0)) && !new_line
)
2344 fputs_unfiltered (prev_suffix
, gdb_stdlog
);
2345 fputs_unfiltered ("\n", gdb_stdlog
);
2346 fputs_unfiltered (prefix
, gdb_stdlog
);
2349 /* Print prefix if we printed a newline during the previous call. */
2353 fputs_unfiltered (prefix
, gdb_stdlog
);
2356 prev_prefix
= prefix
;
2357 prev_suffix
= suffix
;
2359 /* Output characters in a printable format. */
2360 while ((ch
= *string
++) != '\0')
2366 fputc_unfiltered (ch
, gdb_stdlog
);
2369 fprintf_unfiltered (gdb_stdlog
, "\\x%02x", ch
& 0xff);
2373 fputs_unfiltered ("\\\\", gdb_stdlog
);
2376 fputs_unfiltered ("\\b", gdb_stdlog
);
2379 fputs_unfiltered ("\\f", gdb_stdlog
);
2383 fputs_unfiltered ("\\n", gdb_stdlog
);
2386 fputs_unfiltered ("\\r", gdb_stdlog
);
2389 fputs_unfiltered ("\\t", gdb_stdlog
);
2392 fputs_unfiltered ("\\v", gdb_stdlog
);
2396 return_p
= ch
== '\r';
2399 /* Print suffix if we printed a newline. */
2402 fputs_unfiltered (suffix
, gdb_stdlog
);
2403 fputs_unfiltered ("\n", gdb_stdlog
);
2408 /* Print a variable number of ARGS using format FORMAT. If this
2409 information is going to put the amount written (since the last call
2410 to REINITIALIZE_MORE_FILTER or the last page break) over the page size,
2411 call prompt_for_continue to get the users permision to continue.
2413 Unlike fprintf, this function does not return a value.
2415 We implement three variants, vfprintf (takes a vararg list and stream),
2416 fprintf (takes a stream to write on), and printf (the usual).
2418 Note also that a longjmp to top level may occur in this routine
2419 (since prompt_for_continue may do so) so this routine should not be
2420 called when cleanups are not in place. */
2423 vfprintf_maybe_filtered (struct ui_file
*stream
, const char *format
,
2424 va_list args
, int filter
)
2427 struct cleanup
*old_cleanups
;
2429 linebuffer
= xstrvprintf (format
, args
);
2430 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2431 fputs_maybe_filtered (linebuffer
, stream
, filter
);
2432 do_cleanups (old_cleanups
);
2437 vfprintf_filtered (struct ui_file
*stream
, const char *format
, va_list args
)
2439 vfprintf_maybe_filtered (stream
, format
, args
, 1);
2443 vfprintf_unfiltered (struct ui_file
*stream
, const char *format
, va_list args
)
2446 struct cleanup
*old_cleanups
;
2448 linebuffer
= xstrvprintf (format
, args
);
2449 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2450 if (debug_timestamp
&& stream
== gdb_stdlog
)
2456 gettimeofday (&tm
, NULL
);
2458 len
= strlen (linebuffer
);
2459 need_nl
= (len
> 0 && linebuffer
[len
- 1] != '\n');
2461 timestamp
= xstrprintf ("%ld:%ld %s%s",
2462 (long) tm
.tv_sec
, (long) tm
.tv_usec
,
2464 need_nl
? "\n": "");
2465 make_cleanup (xfree
, timestamp
);
2466 fputs_unfiltered (timestamp
, stream
);
2469 fputs_unfiltered (linebuffer
, stream
);
2470 do_cleanups (old_cleanups
);
2474 vprintf_filtered (const char *format
, va_list args
)
2476 vfprintf_maybe_filtered (gdb_stdout
, format
, args
, 1);
2480 vprintf_unfiltered (const char *format
, va_list args
)
2482 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2486 fprintf_filtered (struct ui_file
*stream
, const char *format
, ...)
2490 va_start (args
, format
);
2491 vfprintf_filtered (stream
, format
, args
);
2496 fprintf_unfiltered (struct ui_file
*stream
, const char *format
, ...)
2500 va_start (args
, format
);
2501 vfprintf_unfiltered (stream
, format
, args
);
2505 /* Like fprintf_filtered, but prints its result indented.
2506 Called as fprintfi_filtered (spaces, stream, format, ...); */
2509 fprintfi_filtered (int spaces
, struct ui_file
*stream
, const char *format
,
2514 va_start (args
, format
);
2515 print_spaces_filtered (spaces
, stream
);
2517 vfprintf_filtered (stream
, format
, args
);
2523 printf_filtered (const char *format
, ...)
2527 va_start (args
, format
);
2528 vfprintf_filtered (gdb_stdout
, format
, args
);
2534 printf_unfiltered (const char *format
, ...)
2538 va_start (args
, format
);
2539 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2543 /* Like printf_filtered, but prints it's result indented.
2544 Called as printfi_filtered (spaces, format, ...); */
2547 printfi_filtered (int spaces
, const char *format
, ...)
2551 va_start (args
, format
);
2552 print_spaces_filtered (spaces
, gdb_stdout
);
2553 vfprintf_filtered (gdb_stdout
, format
, args
);
2557 /* Easy -- but watch out!
2559 This routine is *not* a replacement for puts()! puts() appends a newline.
2560 This one doesn't, and had better not! */
2563 puts_filtered (const char *string
)
2565 fputs_filtered (string
, gdb_stdout
);
2569 puts_unfiltered (const char *string
)
2571 fputs_unfiltered (string
, gdb_stdout
);
2574 /* Return a pointer to N spaces and a null. The pointer is good
2575 until the next call to here. */
2580 static char *spaces
= 0;
2581 static int max_spaces
= -1;
2587 spaces
= (char *) xmalloc (n
+ 1);
2588 for (t
= spaces
+ n
; t
!= spaces
;)
2594 return spaces
+ max_spaces
- n
;
2597 /* Print N spaces. */
2599 print_spaces_filtered (int n
, struct ui_file
*stream
)
2601 fputs_filtered (n_spaces (n
), stream
);
2604 /* C++/ObjC demangler stuff. */
2606 /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language
2607 LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
2608 If the name is not mangled, or the language for the name is unknown, or
2609 demangling is off, the name is printed in its "raw" form. */
2612 fprintf_symbol_filtered (struct ui_file
*stream
, char *name
,
2613 enum language lang
, int arg_mode
)
2619 /* If user wants to see raw output, no problem. */
2622 fputs_filtered (name
, stream
);
2626 demangled
= language_demangle (language_def (lang
), name
, arg_mode
);
2627 fputs_filtered (demangled
? demangled
: name
, stream
);
2628 if (demangled
!= NULL
)
2636 /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any
2637 differences in whitespace. Returns 0 if they match, non-zero if they
2638 don't (slightly different than strcmp()'s range of return values).
2640 As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO".
2641 This "feature" is useful when searching for matching C++ function names
2642 (such as if the user types 'break FOO', where FOO is a mangled C++
2646 strcmp_iw (const char *string1
, const char *string2
)
2648 while ((*string1
!= '\0') && (*string2
!= '\0'))
2650 while (isspace (*string1
))
2654 while (isspace (*string2
))
2658 if (case_sensitivity
== case_sensitive_on
&& *string1
!= *string2
)
2660 if (case_sensitivity
== case_sensitive_off
2661 && (tolower ((unsigned char) *string1
)
2662 != tolower ((unsigned char) *string2
)))
2664 if (*string1
!= '\0')
2670 return (*string1
!= '\0' && *string1
!= '(') || (*string2
!= '\0');
2673 /* This is like strcmp except that it ignores whitespace and treats
2674 '(' as the first non-NULL character in terms of ordering. Like
2675 strcmp (and unlike strcmp_iw), it returns negative if STRING1 <
2676 STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2
2677 according to that ordering.
2679 If a list is sorted according to this function and if you want to
2680 find names in the list that match some fixed NAME according to
2681 strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
2682 where this function would put NAME.
2684 This function must be neutral to the CASE_SENSITIVITY setting as the user
2685 may choose it during later lookup. Therefore this function always sorts
2686 primarily case-insensitively and secondarily case-sensitively.
2688 Here are some examples of why using strcmp to sort is a bad idea:
2692 Say your partial symtab contains: "foo<char *>", "goo". Then, if
2693 we try to do a search for "foo<char*>", strcmp will locate this
2694 after "foo<char *>" and before "goo". Then lookup_partial_symbol
2695 will start looking at strings beginning with "goo", and will never
2696 see the correct match of "foo<char *>".
2698 Parenthesis example:
2700 In practice, this is less like to be an issue, but I'll give it a
2701 shot. Let's assume that '$' is a legitimate character to occur in
2702 symbols. (Which may well even be the case on some systems.) Then
2703 say that the partial symbol table contains "foo$" and "foo(int)".
2704 strcmp will put them in this order, since '$' < '('. Now, if the
2705 user searches for "foo", then strcmp will sort "foo" before "foo$".
2706 Then lookup_partial_symbol will notice that strcmp_iw("foo$",
2707 "foo") is false, so it won't proceed to the actual match of
2708 "foo(int)" with "foo". */
2711 strcmp_iw_ordered (const char *string1
, const char *string2
)
2713 const char *saved_string1
= string1
, *saved_string2
= string2
;
2714 enum case_sensitivity case_pass
= case_sensitive_off
;
2718 /* C1 and C2 are valid only if *string1 != '\0' && *string2 != '\0'.
2719 Provide stub characters if we are already at the end of one of the
2721 char c1
= 'X', c2
= 'X';
2723 while (*string1
!= '\0' && *string2
!= '\0')
2725 while (isspace (*string1
))
2727 while (isspace (*string2
))
2732 case case_sensitive_off
:
2733 c1
= tolower ((unsigned char) *string1
);
2734 c2
= tolower ((unsigned char) *string2
);
2736 case case_sensitive_on
:
2744 if (*string1
!= '\0')
2753 /* Characters are non-equal unless they're both '\0'; we want to
2754 make sure we get the comparison right according to our
2755 comparison in the cases where one of them is '\0' or '('. */
2757 if (*string2
== '\0')
2762 if (*string2
== '\0')
2767 if (*string2
== '\0' || *string2
== '(')
2776 if (case_pass
== case_sensitive_on
)
2779 /* Otherwise the strings were equal in case insensitive way, make
2780 a more fine grained comparison in a case sensitive way. */
2782 case_pass
= case_sensitive_on
;
2783 string1
= saved_string1
;
2784 string2
= saved_string2
;
2788 /* A simple comparison function with opposite semantics to strcmp. */
2791 streq (const char *lhs
, const char *rhs
)
2793 return !strcmp (lhs
, rhs
);
2799 ** Answer whether string_to_compare is a full or partial match to
2800 ** template_string. The partial match must be in sequence starting
2804 subset_compare (char *string_to_compare
, char *template_string
)
2808 if (template_string
!= (char *) NULL
&& string_to_compare
!= (char *) NULL
2809 && strlen (string_to_compare
) <= strlen (template_string
))
2812 (template_string
, string_to_compare
, strlen (string_to_compare
)) == 0);
2819 pagination_on_command (char *arg
, int from_tty
)
2821 pagination_enabled
= 1;
2825 pagination_off_command (char *arg
, int from_tty
)
2827 pagination_enabled
= 0;
2831 show_debug_timestamp (struct ui_file
*file
, int from_tty
,
2832 struct cmd_list_element
*c
, const char *value
)
2834 fprintf_filtered (file
, _("Timestamping debugging messages is %s.\n"),
2840 initialize_utils (void)
2842 add_setshow_uinteger_cmd ("width", class_support
, &chars_per_line
, _("\
2843 Set number of characters gdb thinks are in a line."), _("\
2844 Show number of characters gdb thinks are in a line."), NULL
,
2846 show_chars_per_line
,
2847 &setlist
, &showlist
);
2849 add_setshow_uinteger_cmd ("height", class_support
, &lines_per_page
, _("\
2850 Set number of lines gdb thinks are in a page."), _("\
2851 Show number of lines gdb thinks are in a page."), NULL
,
2853 show_lines_per_page
,
2854 &setlist
, &showlist
);
2858 add_setshow_boolean_cmd ("demangle", class_support
, &demangle
, _("\
2859 Set demangling of encoded C++/ObjC names when displaying symbols."), _("\
2860 Show demangling of encoded C++/ObjC names when displaying symbols."), NULL
,
2863 &setprintlist
, &showprintlist
);
2865 add_setshow_boolean_cmd ("pagination", class_support
,
2866 &pagination_enabled
, _("\
2867 Set state of pagination."), _("\
2868 Show state of pagination."), NULL
,
2870 show_pagination_enabled
,
2871 &setlist
, &showlist
);
2875 add_com ("am", class_support
, pagination_on_command
,
2876 _("Enable pagination"));
2877 add_com ("sm", class_support
, pagination_off_command
,
2878 _("Disable pagination"));
2881 add_setshow_boolean_cmd ("sevenbit-strings", class_support
,
2882 &sevenbit_strings
, _("\
2883 Set printing of 8-bit characters in strings as \\nnn."), _("\
2884 Show printing of 8-bit characters in strings as \\nnn."), NULL
,
2886 show_sevenbit_strings
,
2887 &setprintlist
, &showprintlist
);
2889 add_setshow_boolean_cmd ("asm-demangle", class_support
, &asm_demangle
, _("\
2890 Set demangling of C++/ObjC names in disassembly listings."), _("\
2891 Show demangling of C++/ObjC names in disassembly listings."), NULL
,
2894 &setprintlist
, &showprintlist
);
2896 add_setshow_boolean_cmd ("timestamp", class_maintenance
,
2897 &debug_timestamp
, _("\
2898 Set timestamping of debugging messages."), _("\
2899 Show timestamping of debugging messages."), _("\
2900 When set, debugging messages will be marked with seconds and microseconds."),
2902 show_debug_timestamp
,
2903 &setdebuglist
, &showdebuglist
);
2906 /* Machine specific function to handle SIGWINCH signal. */
2908 #ifdef SIGWINCH_HANDLER_BODY
2909 SIGWINCH_HANDLER_BODY
2911 /* Print routines to handle variable size regs, etc. */
2912 /* Temporary storage using circular buffer. */
2918 static char buf
[NUMCELLS
][CELLSIZE
];
2919 static int cell
= 0;
2921 if (++cell
>= NUMCELLS
)
2927 paddress (struct gdbarch
*gdbarch
, CORE_ADDR addr
)
2929 /* Truncate address to the size of a target address, avoiding shifts
2930 larger or equal than the width of a CORE_ADDR. The local
2931 variable ADDR_BIT stops the compiler reporting a shift overflow
2932 when it won't occur. */
2933 /* NOTE: This assumes that the significant address information is
2934 kept in the least significant bits of ADDR - the upper bits were
2935 either zero or sign extended. Should gdbarch_address_to_pointer or
2936 some ADDRESS_TO_PRINTABLE() be used to do the conversion? */
2938 int addr_bit
= gdbarch_addr_bit (gdbarch
);
2940 if (addr_bit
< (sizeof (CORE_ADDR
) * HOST_CHAR_BIT
))
2941 addr
&= ((CORE_ADDR
) 1 << addr_bit
) - 1;
2942 return hex_string (addr
);
2945 /* This function is described in "defs.h". */
2948 print_core_address (struct gdbarch
*gdbarch
, CORE_ADDR address
)
2950 int addr_bit
= gdbarch_addr_bit (gdbarch
);
2952 if (addr_bit
< (sizeof (CORE_ADDR
) * HOST_CHAR_BIT
))
2953 address
&= ((CORE_ADDR
) 1 << addr_bit
) - 1;
2955 /* FIXME: cagney/2002-05-03: Need local_address_string() function
2956 that returns the language localized string formatted to a width
2957 based on gdbarch_addr_bit. */
2959 return hex_string_custom (address
, 8);
2961 return hex_string_custom (address
, 16);
2964 /* Callback hash_f for htab_create_alloc or htab_create_alloc_ex. */
2967 core_addr_hash (const void *ap
)
2969 const CORE_ADDR
*addrp
= ap
;
2974 /* Callback eq_f for htab_create_alloc or htab_create_alloc_ex. */
2977 core_addr_eq (const void *ap
, const void *bp
)
2979 const CORE_ADDR
*addr_ap
= ap
;
2980 const CORE_ADDR
*addr_bp
= bp
;
2982 return *addr_ap
== *addr_bp
;
2986 decimal2str (char *sign
, ULONGEST addr
, int width
)
2988 /* Steal code from valprint.c:print_decimal(). Should this worry
2989 about the real size of addr as the above does? */
2990 unsigned long temp
[3];
2991 char *str
= get_cell ();
2996 temp
[i
] = addr
% (1000 * 1000 * 1000);
2997 addr
/= (1000 * 1000 * 1000);
3001 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
3010 xsnprintf (str
, CELLSIZE
, "%s%0*lu", sign
, width
, temp
[0]);
3013 xsnprintf (str
, CELLSIZE
, "%s%0*lu%09lu", sign
, width
,
3017 xsnprintf (str
, CELLSIZE
, "%s%0*lu%09lu%09lu", sign
, width
,
3018 temp
[2], temp
[1], temp
[0]);
3021 internal_error (__FILE__
, __LINE__
,
3022 _("failed internal consistency check"));
3029 octal2str (ULONGEST addr
, int width
)
3031 unsigned long temp
[3];
3032 char *str
= get_cell ();
3037 temp
[i
] = addr
% (0100000 * 0100000);
3038 addr
/= (0100000 * 0100000);
3042 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
3052 xsnprintf (str
, CELLSIZE
, "%*o", width
, 0);
3054 xsnprintf (str
, CELLSIZE
, "0%0*lo", width
, temp
[0]);
3057 xsnprintf (str
, CELLSIZE
, "0%0*lo%010lo", width
, temp
[1], temp
[0]);
3060 xsnprintf (str
, CELLSIZE
, "0%0*lo%010lo%010lo", width
,
3061 temp
[2], temp
[1], temp
[0]);
3064 internal_error (__FILE__
, __LINE__
,
3065 _("failed internal consistency check"));
3072 pulongest (ULONGEST u
)
3074 return decimal2str ("", u
, 0);
3078 plongest (LONGEST l
)
3081 return decimal2str ("-", -l
, 0);
3083 return decimal2str ("", l
, 0);
3086 /* Eliminate warning from compiler on 32-bit systems. */
3087 static int thirty_two
= 32;
3090 phex (ULONGEST l
, int sizeof_l
)
3098 xsnprintf (str
, CELLSIZE
, "%08lx%08lx",
3099 (unsigned long) (l
>> thirty_two
),
3100 (unsigned long) (l
& 0xffffffff));
3104 xsnprintf (str
, CELLSIZE
, "%08lx", (unsigned long) l
);
3108 xsnprintf (str
, CELLSIZE
, "%04x", (unsigned short) (l
& 0xffff));
3111 str
= phex (l
, sizeof (l
));
3119 phex_nz (ULONGEST l
, int sizeof_l
)
3127 unsigned long high
= (unsigned long) (l
>> thirty_two
);
3131 xsnprintf (str
, CELLSIZE
, "%lx",
3132 (unsigned long) (l
& 0xffffffff));
3134 xsnprintf (str
, CELLSIZE
, "%lx%08lx", high
,
3135 (unsigned long) (l
& 0xffffffff));
3140 xsnprintf (str
, CELLSIZE
, "%lx", (unsigned long) l
);
3144 xsnprintf (str
, CELLSIZE
, "%x", (unsigned short) (l
& 0xffff));
3147 str
= phex_nz (l
, sizeof (l
));
3154 /* Converts a LONGEST to a C-format hexadecimal literal and stores it
3155 in a static string. Returns a pointer to this string. */
3157 hex_string (LONGEST num
)
3159 char *result
= get_cell ();
3161 xsnprintf (result
, CELLSIZE
, "0x%s", phex_nz (num
, sizeof (num
)));
3165 /* Converts a LONGEST number to a C-format hexadecimal literal and
3166 stores it in a static string. Returns a pointer to this string
3167 that is valid until the next call. The number is padded on the
3168 left with 0s to at least WIDTH characters. */
3170 hex_string_custom (LONGEST num
, int width
)
3172 char *result
= get_cell ();
3173 char *result_end
= result
+ CELLSIZE
- 1;
3174 const char *hex
= phex_nz (num
, sizeof (num
));
3175 int hex_len
= strlen (hex
);
3177 if (hex_len
> width
)
3179 if (width
+ 2 >= CELLSIZE
)
3180 internal_error (__FILE__
, __LINE__
, _("\
3181 hex_string_custom: insufficient space to store result"));
3183 strcpy (result_end
- width
- 2, "0x");
3184 memset (result_end
- width
, '0', width
);
3185 strcpy (result_end
- hex_len
, hex
);
3186 return result_end
- width
- 2;
3189 /* Convert VAL to a numeral in the given radix. For
3190 * radix 10, IS_SIGNED may be true, indicating a signed quantity;
3191 * otherwise VAL is interpreted as unsigned. If WIDTH is supplied,
3192 * it is the minimum width (0-padded if needed). USE_C_FORMAT means
3193 * to use C format in all cases. If it is false, then 'x'
3194 * and 'o' formats do not include a prefix (0x or leading 0). */
3197 int_string (LONGEST val
, int radix
, int is_signed
, int width
,
3207 result
= hex_string (val
);
3209 result
= hex_string_custom (val
, width
);
3216 if (is_signed
&& val
< 0)
3217 return decimal2str ("-", -val
, width
);
3219 return decimal2str ("", val
, width
);
3223 char *result
= octal2str (val
, width
);
3225 if (use_c_format
|| val
== 0)
3231 internal_error (__FILE__
, __LINE__
,
3232 _("failed internal consistency check"));
3236 /* Convert a CORE_ADDR into a string. */
3238 core_addr_to_string (const CORE_ADDR addr
)
3240 char *str
= get_cell ();
3243 strcat (str
, phex (addr
, sizeof (addr
)));
3248 core_addr_to_string_nz (const CORE_ADDR addr
)
3250 char *str
= get_cell ();
3253 strcat (str
, phex_nz (addr
, sizeof (addr
)));
3257 /* Convert a string back into a CORE_ADDR. */
3259 string_to_core_addr (const char *my_string
)
3263 if (my_string
[0] == '0' && tolower (my_string
[1]) == 'x')
3265 /* Assume that it is in hex. */
3268 for (i
= 2; my_string
[i
] != '\0'; i
++)
3270 if (isdigit (my_string
[i
]))
3271 addr
= (my_string
[i
] - '0') + (addr
* 16);
3272 else if (isxdigit (my_string
[i
]))
3273 addr
= (tolower (my_string
[i
]) - 'a' + 0xa) + (addr
* 16);
3275 error (_("invalid hex \"%s\""), my_string
);
3280 /* Assume that it is in decimal. */
3283 for (i
= 0; my_string
[i
] != '\0'; i
++)
3285 if (isdigit (my_string
[i
]))
3286 addr
= (my_string
[i
] - '0') + (addr
* 10);
3288 error (_("invalid decimal \"%s\""), my_string
);
3296 host_address_to_string (const void *addr
)
3298 char *str
= get_cell ();
3300 xsnprintf (str
, CELLSIZE
, "0x%s", phex_nz ((uintptr_t) addr
, sizeof (addr
)));
3305 gdb_realpath (const char *filename
)
3307 /* Method 1: The system has a compile time upper bound on a filename
3308 path. Use that and realpath() to canonicalize the name. This is
3309 the most common case. Note that, if there isn't a compile time
3310 upper bound, you want to avoid realpath() at all costs. */
3311 #if defined(HAVE_REALPATH)
3313 # if defined (PATH_MAX)
3315 # define USE_REALPATH
3316 # elif defined (MAXPATHLEN)
3317 char buf
[MAXPATHLEN
];
3318 # define USE_REALPATH
3320 # if defined (USE_REALPATH)
3321 const char *rp
= realpath (filename
, buf
);
3325 return xstrdup (rp
);
3328 #endif /* HAVE_REALPATH */
3330 /* Method 2: The host system (i.e., GNU) has the function
3331 canonicalize_file_name() which malloc's a chunk of memory and
3332 returns that, use that. */
3333 #if defined(HAVE_CANONICALIZE_FILE_NAME)
3335 char *rp
= canonicalize_file_name (filename
);
3338 return xstrdup (filename
);
3344 /* FIXME: cagney/2002-11-13:
3346 Method 2a: Use realpath() with a NULL buffer. Some systems, due
3347 to the problems described in method 3, have modified their
3348 realpath() implementation so that it will allocate a buffer when
3349 NULL is passed in. Before this can be used, though, some sort of
3350 configure time test would need to be added. Otherwize the code
3351 will likely core dump. */
3353 /* Method 3: Now we're getting desperate! The system doesn't have a
3354 compile time buffer size and no alternative function. Query the
3355 OS, using pathconf(), for the buffer limit. Care is needed
3356 though, some systems do not limit PATH_MAX (return -1 for
3357 pathconf()) making it impossible to pass a correctly sized buffer
3358 to realpath() (it could always overflow). On those systems, we
3360 #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
3362 /* Find out the max path size. */
3363 long path_max
= pathconf ("/", _PC_PATH_MAX
);
3367 /* PATH_MAX is bounded. */
3368 char *buf
= alloca (path_max
);
3369 char *rp
= realpath (filename
, buf
);
3371 return xstrdup (rp
? rp
: filename
);
3376 /* This system is a lost cause, just dup the buffer. */
3377 return xstrdup (filename
);
3380 /* Return a copy of FILENAME, with its directory prefix canonicalized
3384 xfullpath (const char *filename
)
3386 const char *base_name
= lbasename (filename
);
3391 /* Extract the basename of filename, and return immediately
3392 a copy of filename if it does not contain any directory prefix. */
3393 if (base_name
== filename
)
3394 return xstrdup (filename
);
3396 dir_name
= alloca ((size_t) (base_name
- filename
+ 2));
3397 /* Allocate enough space to store the dir_name + plus one extra
3398 character sometimes needed under Windows (see below), and
3399 then the closing \000 character. */
3400 strncpy (dir_name
, filename
, base_name
- filename
);
3401 dir_name
[base_name
- filename
] = '\000';
3403 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
3404 /* We need to be careful when filename is of the form 'd:foo', which
3405 is equivalent of d:./foo, which is totally different from d:/foo. */
3406 if (strlen (dir_name
) == 2 && isalpha (dir_name
[0]) && dir_name
[1] == ':')
3409 dir_name
[3] = '\000';
3413 /* Canonicalize the directory prefix, and build the resulting
3414 filename. If the dirname realpath already contains an ending
3415 directory separator, avoid doubling it. */
3416 real_path
= gdb_realpath (dir_name
);
3417 if (IS_DIR_SEPARATOR (real_path
[strlen (real_path
) - 1]))
3418 result
= concat (real_path
, base_name
, (char *) NULL
);
3420 result
= concat (real_path
, SLASH_STRING
, base_name
, (char *) NULL
);
3427 /* This is the 32-bit CRC function used by the GNU separate debug
3428 facility. An executable may contain a section named
3429 .gnu_debuglink, which holds the name of a separate executable file
3430 containing its debug info, and a checksum of that file's contents,
3431 computed using this function. */
3433 gnu_debuglink_crc32 (unsigned long crc
, unsigned char *buf
, size_t len
)
3435 static const unsigned int crc32_table
[256] = {
3436 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
3437 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
3438 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
3439 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
3440 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
3441 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
3442 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
3443 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
3444 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
3445 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
3446 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
3447 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
3448 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
3449 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
3450 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
3451 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
3452 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
3453 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
3454 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
3455 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
3456 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
3457 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
3458 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
3459 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
3460 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
3461 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
3462 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
3463 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
3464 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
3465 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
3466 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
3467 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
3468 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
3469 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
3470 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
3471 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
3472 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
3473 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
3474 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
3475 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
3476 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
3477 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
3478 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
3479 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
3480 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
3481 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
3482 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
3483 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
3484 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
3485 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
3486 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
3491 crc
= ~crc
& 0xffffffff;
3492 for (end
= buf
+ len
; buf
< end
; ++buf
)
3493 crc
= crc32_table
[(crc
^ *buf
) & 0xff] ^ (crc
>> 8);
3494 return ~crc
& 0xffffffff;
3498 align_up (ULONGEST v
, int n
)
3500 /* Check that N is really a power of two. */
3501 gdb_assert (n
&& (n
& (n
-1)) == 0);
3502 return (v
+ n
- 1) & -n
;
3506 align_down (ULONGEST v
, int n
)
3508 /* Check that N is really a power of two. */
3509 gdb_assert (n
&& (n
& (n
-1)) == 0);
3513 /* Allocation function for the libiberty hash table which uses an
3514 obstack. The obstack is passed as DATA. */
3517 hashtab_obstack_allocate (void *data
, size_t size
, size_t count
)
3519 unsigned int total
= size
* count
;
3520 void *ptr
= obstack_alloc ((struct obstack
*) data
, total
);
3522 memset (ptr
, 0, total
);
3526 /* Trivial deallocation function for the libiberty splay tree and hash
3527 table - don't deallocate anything. Rely on later deletion of the
3528 obstack. DATA will be the obstack, although it is not needed
3532 dummy_obstack_deallocate (void *object
, void *data
)
3537 /* The bit offset of the highest byte in a ULONGEST, for overflow
3540 #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT)
3542 /* True (non-zero) iff DIGIT is a valid digit in radix BASE,
3543 where 2 <= BASE <= 36. */
3546 is_digit_in_base (unsigned char digit
, int base
)
3548 if (!isalnum (digit
))
3551 return (isdigit (digit
) && digit
< base
+ '0');
3553 return (isdigit (digit
) || tolower (digit
) < base
- 10 + 'a');
3557 digit_to_int (unsigned char c
)
3562 return tolower (c
) - 'a' + 10;
3565 /* As for strtoul, but for ULONGEST results. */
3568 strtoulst (const char *num
, const char **trailer
, int base
)
3570 unsigned int high_part
;
3575 /* Skip leading whitespace. */
3576 while (isspace (num
[i
]))
3579 /* Handle prefixes. */
3582 else if (num
[i
] == '-')
3588 if (base
== 0 || base
== 16)
3590 if (num
[i
] == '0' && (num
[i
+ 1] == 'x' || num
[i
+ 1] == 'X'))
3598 if (base
== 0 && num
[i
] == '0')
3604 if (base
< 2 || base
> 36)
3610 result
= high_part
= 0;
3611 for (; is_digit_in_base (num
[i
], base
); i
+= 1)
3613 result
= result
* base
+ digit_to_int (num
[i
]);
3614 high_part
= high_part
* base
+ (unsigned int) (result
>> HIGH_BYTE_POSN
);
3615 result
&= ((ULONGEST
) 1 << HIGH_BYTE_POSN
) - 1;
3616 if (high_part
> 0xff)
3619 result
= ~ (ULONGEST
) 0;
3626 if (trailer
!= NULL
)
3629 result
= result
+ ((ULONGEST
) high_part
<< HIGH_BYTE_POSN
);
3636 /* Simple, portable version of dirname that does not modify its
3640 ldirname (const char *filename
)
3642 const char *base
= lbasename (filename
);
3645 while (base
> filename
&& IS_DIR_SEPARATOR (base
[-1]))
3648 if (base
== filename
)
3651 dirname
= xmalloc (base
- filename
+ 2);
3652 memcpy (dirname
, filename
, base
- filename
);
3654 /* On DOS based file systems, convert "d:foo" to "d:.", so that we
3655 create "d:./bar" later instead of the (different) "d:/bar". */
3656 if (base
- filename
== 2 && IS_ABSOLUTE_PATH (base
)
3657 && !IS_DIR_SEPARATOR (filename
[0]))
3658 dirname
[base
++ - filename
] = '.';
3660 dirname
[base
- filename
] = '\0';
3664 /* Call libiberty's buildargv, and return the result.
3665 If buildargv fails due to out-of-memory, call nomem.
3666 Therefore, the returned value is guaranteed to be non-NULL,
3667 unless the parameter itself is NULL. */
3670 gdb_buildargv (const char *s
)
3672 char **argv
= buildargv (s
);
3674 if (s
!= NULL
&& argv
== NULL
)
3680 compare_positive_ints (const void *ap
, const void *bp
)
3682 /* Because we know we're comparing two ints which are positive,
3683 there's no danger of overflow here. */
3684 return * (int *) ap
- * (int *) bp
;
3687 #define AMBIGUOUS_MESS1 ".\nMatching formats:"
3688 #define AMBIGUOUS_MESS2 \
3689 ".\nUse \"set gnutarget format-name\" to specify the format."
3692 gdb_bfd_errmsg (bfd_error_type error_tag
, char **matching
)
3698 /* Check if errmsg just need simple return. */
3699 if (error_tag
!= bfd_error_file_ambiguously_recognized
|| matching
== NULL
)
3700 return bfd_errmsg (error_tag
);
3702 ret_len
= strlen (bfd_errmsg (error_tag
)) + strlen (AMBIGUOUS_MESS1
)
3703 + strlen (AMBIGUOUS_MESS2
);
3704 for (p
= matching
; *p
; p
++)
3705 ret_len
+= strlen (*p
) + 1;
3706 ret
= xmalloc (ret_len
+ 1);
3708 make_cleanup (xfree
, ret
);
3710 strcpy (retp
, bfd_errmsg (error_tag
));
3711 retp
+= strlen (retp
);
3713 strcpy (retp
, AMBIGUOUS_MESS1
);
3714 retp
+= strlen (retp
);
3716 for (p
= matching
; *p
; p
++)
3718 sprintf (retp
, " %s", *p
);
3719 retp
+= strlen (retp
);
3723 strcpy (retp
, AMBIGUOUS_MESS2
);
3728 /* Return ARGS parsed as a valid pid, or throw an error. */
3731 parse_pid_to_attach (char *args
)
3737 error_no_arg (_("process-id to attach"));
3740 pid
= strtoul (args
, &dummy
, 0);
3741 /* Some targets don't set errno on errors, grrr! */
3742 if ((pid
== 0 && dummy
== args
) || dummy
!= &args
[strlen (args
)])
3743 error (_("Illegal process-id: %s."), args
);
3748 /* Helper for make_bpstat_clear_actions_cleanup. */
3751 do_bpstat_clear_actions_cleanup (void *unused
)
3753 bpstat_clear_actions ();
3756 /* Call bpstat_clear_actions for the case an exception is throw. You should
3757 discard_cleanups if no exception is caught. */
3760 make_bpstat_clear_actions_cleanup (void)
3762 return make_cleanup (do_bpstat_clear_actions_cleanup
, NULL
);
3765 /* Check for GCC >= 4.x according to the symtab->producer string. Return minor
3766 version (x) of 4.x in such case. If it is not GCC or it is GCC older than
3767 4.x return -1. If it is GCC 5.x or higher return INT_MAX. */
3770 producer_is_gcc_ge_4 (const char *producer
)
3775 if (producer
== NULL
)
3777 /* For unknown compilers expect their behavior is not compliant. For GCC
3778 this case can also happen for -gdwarf-4 type units supported since
3784 /* Skip any identifier after "GNU " - such as "C++" or "Java". */
3786 if (strncmp (producer
, "GNU ", strlen ("GNU ")) != 0)
3788 /* For non-GCC compilers expect their behavior is not compliant. */
3792 cs
= &producer
[strlen ("GNU ")];
3793 while (*cs
&& !isdigit (*cs
))
3795 if (sscanf (cs
, "%d.%d", &major
, &minor
) != 2)
3797 /* Not recognized as GCC. */
3809 /* Provide a prototype to silence -Wmissing-prototypes. */
3810 extern initialize_file_ftype _initialize_utils
;
3813 _initialize_utils (void)
3815 add_internal_problem_command (&internal_error_problem
);
3816 add_internal_problem_command (&internal_warning_problem
);