1 /* General utility routines for GDB, the GNU debugger.
3 Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
4 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
5 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 2 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, write to the Free Software
21 Foundation, Inc., 51 Franklin Street, Fifth Floor,
22 Boston, MA 02110-1301, USA. */
25 #include "gdb_assert.h"
27 #include "gdb_string.h"
28 #include "event-top.h"
29 #include "exceptions.h"
32 #include "tui/tui.h" /* For tui_get_command_dimension. */
39 /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */
50 #include "expression.h"
54 #include "filenames.h"
56 #include "gdb_obstack.h"
59 #include "inferior.h" /* for signed_pointer_to_address */
61 #include <sys/param.h> /* For MAXPATHLEN */
63 #include "gdb_curses.h"
65 #include "readline/readline.h"
68 extern PTR
malloc (); /* OK: PTR */
70 #if !HAVE_DECL_REALLOC
71 extern PTR
realloc (); /* OK: PTR */
77 /* readline defines this. */
80 void (*deprecated_error_begin_hook
) (void);
82 /* Prototypes for local functions */
84 static void vfprintf_maybe_filtered (struct ui_file
*, const char *,
85 va_list, int) ATTR_FORMAT (printf
, 2, 0);
87 static void fputs_maybe_filtered (const char *, struct ui_file
*, int);
89 static void do_my_cleanups (struct cleanup
**, struct cleanup
*);
91 static void prompt_for_continue (void);
93 static void set_screen_size (void);
94 static void set_width (void);
96 /* Chain of cleanup actions established with make_cleanup,
97 to be executed if an error happens. */
99 static struct cleanup
*cleanup_chain
; /* cleaned up after a failed command */
100 static struct cleanup
*final_cleanup_chain
; /* cleaned up when gdb exits */
101 static struct cleanup
*run_cleanup_chain
; /* cleaned up on each 'run' */
102 static struct cleanup
*exec_cleanup_chain
; /* cleaned up on each execution command */
103 /* cleaned up on each error from within an execution command */
104 static struct cleanup
*exec_error_cleanup_chain
;
106 /* Pointer to what is left to do for an execution command after the
107 target stops. Used only in asynchronous mode, by targets that
108 support async execution. The finish and until commands use it. So
109 does the target extended-remote command. */
110 struct continuation
*cmd_continuation
;
111 struct continuation
*intermediate_continuation
;
113 /* Nonzero if we have job control. */
117 /* Nonzero means a quit has been requested. */
121 /* Nonzero means quit immediately if Control-C is typed now, rather
122 than waiting until QUIT is executed. Be careful in setting this;
123 code which executes with immediate_quit set has to be very careful
124 about being able to deal with being interrupted at any time. It is
125 almost always better to use QUIT; the only exception I can think of
126 is being able to quit out of a system call (using EINTR loses if
127 the SIGINT happens between the previous QUIT and the system call).
128 To immediately quit in the case in which a SIGINT happens between
129 the previous QUIT and setting immediate_quit (desirable anytime we
130 expect to block), call QUIT after setting immediate_quit. */
134 /* Nonzero means that encoded C++/ObjC names should be printed out in their
135 C++/ObjC form rather than raw. */
139 show_demangle (struct ui_file
*file
, int from_tty
,
140 struct cmd_list_element
*c
, const char *value
)
142 fprintf_filtered (file
, _("\
143 Demangling of encoded C++/ObjC names when displaying symbols is %s.\n"),
147 /* Nonzero means that encoded C++/ObjC names should be printed out in their
148 C++/ObjC form even in assembler language displays. If this is set, but
149 DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */
151 int asm_demangle
= 0;
153 show_asm_demangle (struct ui_file
*file
, int from_tty
,
154 struct cmd_list_element
*c
, const char *value
)
156 fprintf_filtered (file
, _("\
157 Demangling of C++/ObjC names in disassembly listings is %s.\n"),
161 /* Nonzero means that strings with character values >0x7F should be printed
162 as octal escapes. Zero means just print the value (e.g. it's an
163 international character, and the terminal or window can cope.) */
165 int sevenbit_strings
= 0;
167 show_sevenbit_strings (struct ui_file
*file
, int from_tty
,
168 struct cmd_list_element
*c
, const char *value
)
170 fprintf_filtered (file
, _("\
171 Printing of 8-bit characters in strings as \\nnn is %s.\n"),
175 /* String to be printed before error messages, if any. */
177 char *error_pre_print
;
179 /* String to be printed before quit messages, if any. */
181 char *quit_pre_print
;
183 /* String to be printed before warning messages, if any. */
185 char *warning_pre_print
= "\nwarning: ";
187 int pagination_enabled
= 1;
189 show_pagination_enabled (struct ui_file
*file
, int from_tty
,
190 struct cmd_list_element
*c
, const char *value
)
192 fprintf_filtered (file
, _("State of pagination is %s.\n"), value
);
197 /* Add a new cleanup to the cleanup_chain,
198 and return the previous chain pointer
199 to be passed later to do_cleanups or discard_cleanups.
200 Args are FUNCTION to clean up with, and ARG to pass to it. */
203 make_cleanup (make_cleanup_ftype
*function
, void *arg
)
205 return make_my_cleanup (&cleanup_chain
, function
, arg
);
209 make_final_cleanup (make_cleanup_ftype
*function
, void *arg
)
211 return make_my_cleanup (&final_cleanup_chain
, function
, arg
);
215 make_run_cleanup (make_cleanup_ftype
*function
, void *arg
)
217 return make_my_cleanup (&run_cleanup_chain
, function
, arg
);
221 make_exec_cleanup (make_cleanup_ftype
*function
, void *arg
)
223 return make_my_cleanup (&exec_cleanup_chain
, function
, arg
);
227 make_exec_error_cleanup (make_cleanup_ftype
*function
, void *arg
)
229 return make_my_cleanup (&exec_error_cleanup_chain
, function
, arg
);
233 do_freeargv (void *arg
)
235 freeargv ((char **) arg
);
239 make_cleanup_freeargv (char **arg
)
241 return make_my_cleanup (&cleanup_chain
, do_freeargv
, arg
);
245 do_bfd_close_cleanup (void *arg
)
251 make_cleanup_bfd_close (bfd
*abfd
)
253 return make_cleanup (do_bfd_close_cleanup
, abfd
);
257 do_close_cleanup (void *arg
)
265 make_cleanup_close (int fd
)
267 int *saved_fd
= xmalloc (sizeof (fd
));
269 return make_cleanup (do_close_cleanup
, saved_fd
);
273 do_ui_file_delete (void *arg
)
275 ui_file_delete (arg
);
279 make_cleanup_ui_file_delete (struct ui_file
*arg
)
281 return make_my_cleanup (&cleanup_chain
, do_ui_file_delete
, arg
);
285 do_free_section_addr_info (void *arg
)
287 free_section_addr_info (arg
);
291 make_cleanup_free_section_addr_info (struct section_addr_info
*addrs
)
293 return make_my_cleanup (&cleanup_chain
, do_free_section_addr_info
, addrs
);
298 make_my_cleanup (struct cleanup
**pmy_chain
, make_cleanup_ftype
*function
,
302 = (struct cleanup
*) xmalloc (sizeof (struct cleanup
));
303 struct cleanup
*old_chain
= *pmy_chain
;
305 new->next
= *pmy_chain
;
306 new->function
= function
;
313 /* Discard cleanups and do the actions they describe
314 until we get back to the point OLD_CHAIN in the cleanup_chain. */
317 do_cleanups (struct cleanup
*old_chain
)
319 do_my_cleanups (&cleanup_chain
, old_chain
);
323 do_final_cleanups (struct cleanup
*old_chain
)
325 do_my_cleanups (&final_cleanup_chain
, old_chain
);
329 do_run_cleanups (struct cleanup
*old_chain
)
331 do_my_cleanups (&run_cleanup_chain
, old_chain
);
335 do_exec_cleanups (struct cleanup
*old_chain
)
337 do_my_cleanups (&exec_cleanup_chain
, old_chain
);
341 do_exec_error_cleanups (struct cleanup
*old_chain
)
343 do_my_cleanups (&exec_error_cleanup_chain
, old_chain
);
347 do_my_cleanups (struct cleanup
**pmy_chain
,
348 struct cleanup
*old_chain
)
351 while ((ptr
= *pmy_chain
) != old_chain
)
353 *pmy_chain
= ptr
->next
; /* Do this first incase recursion */
354 (*ptr
->function
) (ptr
->arg
);
359 /* Discard cleanups, not doing the actions they describe,
360 until we get back to the point OLD_CHAIN in the cleanup_chain. */
363 discard_cleanups (struct cleanup
*old_chain
)
365 discard_my_cleanups (&cleanup_chain
, old_chain
);
369 discard_final_cleanups (struct cleanup
*old_chain
)
371 discard_my_cleanups (&final_cleanup_chain
, old_chain
);
375 discard_exec_error_cleanups (struct cleanup
*old_chain
)
377 discard_my_cleanups (&exec_error_cleanup_chain
, old_chain
);
381 discard_my_cleanups (struct cleanup
**pmy_chain
,
382 struct cleanup
*old_chain
)
385 while ((ptr
= *pmy_chain
) != old_chain
)
387 *pmy_chain
= ptr
->next
;
392 /* Set the cleanup_chain to 0, and return the old cleanup chain. */
396 return save_my_cleanups (&cleanup_chain
);
400 save_final_cleanups (void)
402 return save_my_cleanups (&final_cleanup_chain
);
406 save_my_cleanups (struct cleanup
**pmy_chain
)
408 struct cleanup
*old_chain
= *pmy_chain
;
414 /* Restore the cleanup chain from a previously saved chain. */
416 restore_cleanups (struct cleanup
*chain
)
418 restore_my_cleanups (&cleanup_chain
, chain
);
422 restore_final_cleanups (struct cleanup
*chain
)
424 restore_my_cleanups (&final_cleanup_chain
, chain
);
428 restore_my_cleanups (struct cleanup
**pmy_chain
, struct cleanup
*chain
)
433 /* This function is useful for cleanups.
437 old_chain = make_cleanup (free_current_contents, &foo);
439 to arrange to free the object thus allocated. */
442 free_current_contents (void *ptr
)
444 void **location
= ptr
;
445 if (location
== NULL
)
446 internal_error (__FILE__
, __LINE__
,
447 _("free_current_contents: NULL pointer"));
448 if (*location
!= NULL
)
455 /* Provide a known function that does nothing, to use as a base for
456 for a possibly long chain of cleanups. This is useful where we
457 use the cleanup chain for handling normal cleanups as well as dealing
458 with cleanups that need to be done as a result of a call to error().
459 In such cases, we may not be certain where the first cleanup is, unless
460 we have a do-nothing one to always use as the base. */
463 null_cleanup (void *arg
)
467 /* Add a continuation to the continuation list, the global list
468 cmd_continuation. The new continuation will be added at the front.*/
470 add_continuation (void (*continuation_hook
) (struct continuation_arg
*),
471 struct continuation_arg
*arg_list
)
473 struct continuation
*continuation_ptr
;
476 (struct continuation
*) xmalloc (sizeof (struct continuation
));
477 continuation_ptr
->continuation_hook
= continuation_hook
;
478 continuation_ptr
->arg_list
= arg_list
;
479 continuation_ptr
->next
= cmd_continuation
;
480 cmd_continuation
= continuation_ptr
;
483 /* Walk down the cmd_continuation list, and execute all the
484 continuations. There is a problem though. In some cases new
485 continuations may be added while we are in the middle of this
486 loop. If this happens they will be added in the front, and done
487 before we have a chance of exhausting those that were already
488 there. We need to then save the beginning of the list in a pointer
489 and do the continuations from there on, instead of using the
490 global beginning of list as our iteration pointer. */
492 do_all_continuations (void)
494 struct continuation
*continuation_ptr
;
495 struct continuation
*saved_continuation
;
497 /* Copy the list header into another pointer, and set the global
498 list header to null, so that the global list can change as a side
499 effect of invoking the continuations and the processing of
500 the preexisting continuations will not be affected. */
501 continuation_ptr
= cmd_continuation
;
502 cmd_continuation
= NULL
;
504 /* Work now on the list we have set aside. */
505 while (continuation_ptr
)
507 (continuation_ptr
->continuation_hook
) (continuation_ptr
->arg_list
);
508 saved_continuation
= continuation_ptr
;
509 continuation_ptr
= continuation_ptr
->next
;
510 xfree (saved_continuation
);
514 /* Walk down the cmd_continuation list, and get rid of all the
517 discard_all_continuations (void)
519 struct continuation
*continuation_ptr
;
521 while (cmd_continuation
)
523 continuation_ptr
= cmd_continuation
;
524 cmd_continuation
= continuation_ptr
->next
;
525 xfree (continuation_ptr
);
529 /* Add a continuation to the continuation list, the global list
530 intermediate_continuation. The new continuation will be added at
533 add_intermediate_continuation (void (*continuation_hook
)
534 (struct continuation_arg
*),
535 struct continuation_arg
*arg_list
)
537 struct continuation
*continuation_ptr
;
540 (struct continuation
*) xmalloc (sizeof (struct continuation
));
541 continuation_ptr
->continuation_hook
= continuation_hook
;
542 continuation_ptr
->arg_list
= arg_list
;
543 continuation_ptr
->next
= intermediate_continuation
;
544 intermediate_continuation
= continuation_ptr
;
547 /* Walk down the cmd_continuation list, and execute all the
548 continuations. There is a problem though. In some cases new
549 continuations may be added while we are in the middle of this
550 loop. If this happens they will be added in the front, and done
551 before we have a chance of exhausting those that were already
552 there. We need to then save the beginning of the list in a pointer
553 and do the continuations from there on, instead of using the
554 global beginning of list as our iteration pointer.*/
556 do_all_intermediate_continuations (void)
558 struct continuation
*continuation_ptr
;
559 struct continuation
*saved_continuation
;
561 /* Copy the list header into another pointer, and set the global
562 list header to null, so that the global list can change as a side
563 effect of invoking the continuations and the processing of
564 the preexisting continuations will not be affected. */
565 continuation_ptr
= intermediate_continuation
;
566 intermediate_continuation
= NULL
;
568 /* Work now on the list we have set aside. */
569 while (continuation_ptr
)
571 (continuation_ptr
->continuation_hook
) (continuation_ptr
->arg_list
);
572 saved_continuation
= continuation_ptr
;
573 continuation_ptr
= continuation_ptr
->next
;
574 xfree (saved_continuation
);
578 /* Walk down the cmd_continuation list, and get rid of all the
581 discard_all_intermediate_continuations (void)
583 struct continuation
*continuation_ptr
;
585 while (intermediate_continuation
)
587 continuation_ptr
= intermediate_continuation
;
588 intermediate_continuation
= continuation_ptr
->next
;
589 xfree (continuation_ptr
);
595 /* Print a warning message. The first argument STRING is the warning
596 message, used as an fprintf format string, the second is the
597 va_list of arguments for that string. A warning is unfiltered (not
598 paginated) so that the user does not need to page through each
599 screen full of warnings when there are lots of them. */
602 vwarning (const char *string
, va_list args
)
604 if (deprecated_warning_hook
)
605 (*deprecated_warning_hook
) (string
, args
);
608 target_terminal_ours ();
609 wrap_here (""); /* Force out any buffered output */
610 gdb_flush (gdb_stdout
);
611 if (warning_pre_print
)
612 fputs_unfiltered (warning_pre_print
, gdb_stderr
);
613 vfprintf_unfiltered (gdb_stderr
, string
, args
);
614 fprintf_unfiltered (gdb_stderr
, "\n");
619 /* Print a warning message.
620 The first argument STRING is the warning message, used as a fprintf string,
621 and the remaining args are passed as arguments to it.
622 The primary difference between warnings and errors is that a warning
623 does not force the return to command level. */
626 warning (const char *string
, ...)
629 va_start (args
, string
);
630 vwarning (string
, args
);
634 /* Print an error message and return to command level.
635 The first argument STRING is the error message, used as a fprintf string,
636 and the remaining args are passed as arguments to it. */
639 verror (const char *string
, va_list args
)
641 throw_verror (GENERIC_ERROR
, string
, args
);
645 error (const char *string
, ...)
648 va_start (args
, string
);
649 throw_verror (GENERIC_ERROR
, string
, args
);
653 /* Print an error message and quit.
654 The first argument STRING is the error message, used as a fprintf string,
655 and the remaining args are passed as arguments to it. */
658 vfatal (const char *string
, va_list args
)
660 throw_vfatal (string
, args
);
664 fatal (const char *string
, ...)
667 va_start (args
, string
);
668 throw_vfatal (string
, args
);
673 error_stream (struct ui_file
*stream
)
676 char *message
= ui_file_xstrdup (stream
, &len
);
677 make_cleanup (xfree
, message
);
678 error (("%s"), message
);
681 /* Print a message reporting an internal error/warning. Ask the user
682 if they want to continue, dump core, or just exit. Return
683 something to indicate a quit. */
685 struct internal_problem
688 /* FIXME: cagney/2002-08-15: There should be ``maint set/show''
689 commands available for controlling these variables. */
690 enum auto_boolean should_quit
;
691 enum auto_boolean should_dump_core
;
694 /* Report a problem, internal to GDB, to the user. Once the problem
695 has been reported, and assuming GDB didn't quit, the caller can
696 either allow execution to resume or throw an error. */
698 static void ATTR_FORMAT (printf
, 4, 0)
699 internal_vproblem (struct internal_problem
*problem
,
700 const char *file
, int line
, const char *fmt
, va_list ap
)
707 /* Don't allow infinite error/warning recursion. */
709 static char msg
[] = "Recursive internal problem.\n";
717 fputs_unfiltered (msg
, gdb_stderr
);
718 abort (); /* NOTE: GDB has only three calls to abort(). */
721 write (STDERR_FILENO
, msg
, sizeof (msg
));
726 /* Try to get the message out and at the start of a new line. */
727 target_terminal_ours ();
730 /* Create a string containing the full error/warning message. Need
731 to call query with this full string, as otherwize the reason
732 (error/warning) and question become separated. Format using a
733 style similar to a compiler error message. Include extra detail
734 so that the user knows that they are living on the edge. */
737 msg
= xstrvprintf (fmt
, ap
);
738 reason
= xstrprintf ("\
740 A problem internal to GDB has been detected,\n\
741 further debugging may prove unreliable.", file
, line
, problem
->name
, msg
);
743 make_cleanup (xfree
, reason
);
746 switch (problem
->should_quit
)
748 case AUTO_BOOLEAN_AUTO
:
749 /* Default (yes/batch case) is to quit GDB. When in batch mode
750 this lessens the likelhood of GDB going into an infinate
752 quit_p
= query (_("%s\nQuit this debugging session? "), reason
);
754 case AUTO_BOOLEAN_TRUE
:
757 case AUTO_BOOLEAN_FALSE
:
761 internal_error (__FILE__
, __LINE__
, _("bad switch"));
764 switch (problem
->should_dump_core
)
766 case AUTO_BOOLEAN_AUTO
:
767 /* Default (yes/batch case) is to dump core. This leaves a GDB
768 `dropping' so that it is easier to see that something went
770 dump_core_p
= query (_("%s\nCreate a core file of GDB? "), reason
);
773 case AUTO_BOOLEAN_TRUE
:
776 case AUTO_BOOLEAN_FALSE
:
780 internal_error (__FILE__
, __LINE__
, _("bad switch"));
786 abort (); /* NOTE: GDB has only three calls to abort(). */
794 #ifdef HAVE_WORKING_FORK
796 abort (); /* NOTE: GDB has only three calls to abort(). */
804 static struct internal_problem internal_error_problem
= {
805 "internal-error", AUTO_BOOLEAN_AUTO
, AUTO_BOOLEAN_AUTO
809 internal_verror (const char *file
, int line
, const char *fmt
, va_list ap
)
811 internal_vproblem (&internal_error_problem
, file
, line
, fmt
, ap
);
812 deprecated_throw_reason (RETURN_ERROR
);
816 internal_error (const char *file
, int line
, const char *string
, ...)
819 va_start (ap
, string
);
820 internal_verror (file
, line
, string
, ap
);
824 static struct internal_problem internal_warning_problem
= {
825 "internal-warning", AUTO_BOOLEAN_AUTO
, AUTO_BOOLEAN_AUTO
829 internal_vwarning (const char *file
, int line
, const char *fmt
, va_list ap
)
831 internal_vproblem (&internal_warning_problem
, file
, line
, fmt
, ap
);
835 internal_warning (const char *file
, int line
, const char *string
, ...)
838 va_start (ap
, string
);
839 internal_vwarning (file
, line
, string
, ap
);
843 /* Print the system error message for errno, and also mention STRING
844 as the file name for which the error was encountered.
845 Then return to command level. */
848 perror_with_name (const char *string
)
853 err
= safe_strerror (errno
);
854 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
855 strcpy (combined
, string
);
856 strcat (combined
, ": ");
857 strcat (combined
, err
);
859 /* I understand setting these is a matter of taste. Still, some people
860 may clear errno but not know about bfd_error. Doing this here is not
862 bfd_set_error (bfd_error_no_error
);
865 error (_("%s."), combined
);
868 /* Print the system error message for ERRCODE, and also mention STRING
869 as the file name for which the error was encountered. */
872 print_sys_errmsg (const char *string
, int errcode
)
877 err
= safe_strerror (errcode
);
878 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
879 strcpy (combined
, string
);
880 strcat (combined
, ": ");
881 strcat (combined
, err
);
883 /* We want anything which was printed on stdout to come out first, before
885 gdb_flush (gdb_stdout
);
886 fprintf_unfiltered (gdb_stderr
, "%s.\n", combined
);
889 /* Control C eventually causes this to be called, at a convenient time. */
895 /* No steenking SIGINT will ever be coming our way when the
896 program is resumed. Don't lie. */
900 /* If there is no terminal switching for this target, then we can't
901 possibly get screwed by the lack of job control. */
902 || current_target
.to_terminal_ours
== NULL
)
905 fatal ("Quit (expect signal SIGINT when the program is resumed)");
909 /* Control C comes here */
911 request_quit (int signo
)
914 /* Restore the signal handler. Harmless with BSD-style signals,
915 needed for System V-style signals. */
916 signal (signo
, request_quit
);
922 /* Called when a memory allocation fails, with the number of bytes of
923 memory requested in SIZE. */
930 internal_error (__FILE__
, __LINE__
,
931 _("virtual memory exhausted: can't allocate %ld bytes."),
936 internal_error (__FILE__
, __LINE__
, _("virtual memory exhausted."));
940 /* The xmalloc() (libiberty.h) family of memory management routines.
942 These are like the ISO-C malloc() family except that they implement
943 consistent semantics and guard against typical memory management
946 /* NOTE: These are declared using PTR to ensure consistency with
947 "libiberty.h". xfree() is GDB local. */
950 xmalloc (size_t size
)
954 /* See libiberty/xmalloc.c. This function need's to match that's
955 semantics. It never returns NULL. */
959 val
= malloc (size
); /* OK: malloc */
967 xzalloc (size_t size
)
969 return xcalloc (1, size
);
973 xrealloc (PTR ptr
, size_t size
) /* OK: PTR */
977 /* See libiberty/xmalloc.c. This function need's to match that's
978 semantics. It never returns NULL. */
983 val
= realloc (ptr
, size
); /* OK: realloc */
985 val
= malloc (size
); /* OK: malloc */
993 xcalloc (size_t number
, size_t size
)
997 /* See libiberty/xmalloc.c. This function need's to match that's
998 semantics. It never returns NULL. */
999 if (number
== 0 || size
== 0)
1005 mem
= calloc (number
, size
); /* OK: xcalloc */
1007 nomem (number
* size
);
1016 free (ptr
); /* OK: free */
1020 /* Like asprintf/vasprintf but get an internal_error if the call
1024 xstrprintf (const char *format
, ...)
1028 va_start (args
, format
);
1029 ret
= xstrvprintf (format
, args
);
1035 xasprintf (char **ret
, const char *format
, ...)
1038 va_start (args
, format
);
1039 (*ret
) = xstrvprintf (format
, args
);
1044 xvasprintf (char **ret
, const char *format
, va_list ap
)
1046 (*ret
) = xstrvprintf (format
, ap
);
1050 xstrvprintf (const char *format
, va_list ap
)
1053 int status
= vasprintf (&ret
, format
, ap
);
1054 /* NULL is returned when there was a memory allocation problem, or
1055 any other error (for instance, a bad format string). A negative
1056 status (the printed length) with a non-NULL buffer should never
1057 happen, but just to be sure. */
1058 if (ret
== NULL
|| status
< 0)
1059 internal_error (__FILE__
, __LINE__
, _("vasprintf call failed"));
1064 xsnprintf (char *str
, size_t size
, const char *format
, ...)
1069 va_start (args
, format
);
1070 ret
= vsnprintf (str
, size
, format
, args
);
1071 gdb_assert (ret
< size
);
1077 /* My replacement for the read system call.
1078 Used like `read' but keeps going if `read' returns too soon. */
1081 myread (int desc
, char *addr
, int len
)
1088 val
= read (desc
, addr
, len
);
1092 return orglen
- len
;
1099 /* Make a copy of the string at PTR with SIZE characters
1100 (and add a null character at the end in the copy).
1101 Uses malloc to get the space. Returns the address of the copy. */
1104 savestring (const char *ptr
, size_t size
)
1106 char *p
= (char *) xmalloc (size
+ 1);
1107 memcpy (p
, ptr
, size
);
1113 print_spaces (int n
, struct ui_file
*file
)
1115 fputs_unfiltered (n_spaces (n
), file
);
1118 /* Print a host address. */
1121 gdb_print_host_address (const void *addr
, struct ui_file
*stream
)
1124 /* We could use the %p conversion specifier to fprintf if we had any
1125 way of knowing whether this host supports it. But the following
1126 should work on the Alpha and on 32 bit machines. */
1128 fprintf_filtered (stream
, "0x%lx", (unsigned long) addr
);
1132 /* This function supports the query, nquery, and yquery functions.
1133 Ask user a y-or-n question and return 0 if answer is no, 1 if
1134 answer is yes, or default the answer to the specified default
1135 (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a
1136 default answer, or '\0' for no default.
1137 CTLSTR is the control string and should end in "? ". It should
1138 not say how to answer, because we do that.
1139 ARGS are the arguments passed along with the CTLSTR argument to
1142 static int ATTR_FORMAT (printf
, 1, 0)
1143 defaulted_query (const char *ctlstr
, const char defchar
, va_list args
)
1149 char def_answer
, not_def_answer
;
1150 char *y_string
, *n_string
, *question
;
1152 /* Set up according to which answer is the default. */
1153 if (defchar
== '\0')
1157 not_def_answer
= 'N';
1161 else if (defchar
== 'y')
1165 not_def_answer
= 'N';
1173 not_def_answer
= 'Y';
1178 /* Automatically answer the default value if the user did not want
1183 /* If input isn't coming from the user directly, just say what
1184 question we're asking, and then answer "yes" automatically. This
1185 way, important error messages don't get lost when talking to GDB
1187 if (! input_from_terminal_p ())
1190 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1192 printf_filtered (_("(%s or %s) [answered %c; input not from terminal]\n"),
1193 y_string
, n_string
, def_answer
);
1194 gdb_flush (gdb_stdout
);
1199 /* Automatically answer the default value if input is not from the user
1200 directly, or if the user did not want prompts. */
1201 if (!input_from_terminal_p () || !caution
)
1204 if (deprecated_query_hook
)
1206 return deprecated_query_hook (ctlstr
, args
);
1209 /* Format the question outside of the loop, to avoid reusing args. */
1210 question
= xstrvprintf (ctlstr
, args
);
1214 wrap_here (""); /* Flush any buffered output */
1215 gdb_flush (gdb_stdout
);
1217 if (annotation_level
> 1)
1218 printf_filtered (("\n\032\032pre-query\n"));
1220 fputs_filtered (question
, gdb_stdout
);
1221 printf_filtered (_("(%s or %s) "), y_string
, n_string
);
1223 if (annotation_level
> 1)
1224 printf_filtered (("\n\032\032query\n"));
1227 gdb_flush (gdb_stdout
);
1229 answer
= fgetc (stdin
);
1230 clearerr (stdin
); /* in case of C-d */
1231 if (answer
== EOF
) /* C-d */
1236 /* Eat rest of input line, to EOF or newline */
1240 ans2
= fgetc (stdin
);
1243 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1247 /* Check answer. For the non-default, the user must specify
1248 the non-default explicitly. */
1249 if (answer
== not_def_answer
)
1251 retval
= !def_value
;
1254 /* Otherwise, if a default was specified, the user may either
1255 specify the required input or have it default by entering
1257 if (answer
== def_answer
1258 || (defchar
!= '\0' &&
1259 (answer
== '\n' || answer
== '\r' || answer
== EOF
)))
1264 /* Invalid entries are not defaulted and require another selection. */
1265 printf_filtered (_("Please answer %s or %s.\n"),
1266 y_string
, n_string
);
1270 if (annotation_level
> 1)
1271 printf_filtered (("\n\032\032post-query\n"));
1276 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1277 answer is yes, or 0 if answer is defaulted.
1278 Takes three args which are given to printf to print the question.
1279 The first, a control string, should end in "? ".
1280 It should not say how to answer, because we do that. */
1283 nquery (const char *ctlstr
, ...)
1287 va_start (args
, ctlstr
);
1288 return defaulted_query (ctlstr
, 'n', args
);
1292 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1293 answer is yes, or 1 if answer is defaulted.
1294 Takes three args which are given to printf to print the question.
1295 The first, a control string, should end in "? ".
1296 It should not say how to answer, because we do that. */
1299 yquery (const char *ctlstr
, ...)
1303 va_start (args
, ctlstr
);
1304 return defaulted_query (ctlstr
, 'y', args
);
1308 /* Ask user a y-or-n question and return 1 iff answer is yes.
1309 Takes three args which are given to printf to print the question.
1310 The first, a control string, should end in "? ".
1311 It should not say how to answer, because we do that. */
1314 query (const char *ctlstr
, ...)
1318 va_start (args
, ctlstr
);
1319 return defaulted_query (ctlstr
, '\0', args
);
1323 /* Print an error message saying that we couldn't make sense of a
1324 \^mumble sequence in a string or character constant. START and END
1325 indicate a substring of some larger string that contains the
1326 erroneous backslash sequence, missing the initial backslash. */
1328 no_control_char_error (const char *start
, const char *end
)
1330 int len
= end
- start
;
1331 char *copy
= alloca (end
- start
+ 1);
1333 memcpy (copy
, start
, len
);
1336 error (_("There is no control character `\\%s' in the `%s' character set."),
1337 copy
, target_charset ());
1340 /* Parse a C escape sequence. STRING_PTR points to a variable
1341 containing a pointer to the string to parse. That pointer
1342 should point to the character after the \. That pointer
1343 is updated past the characters we use. The value of the
1344 escape sequence is returned.
1346 A negative value means the sequence \ newline was seen,
1347 which is supposed to be equivalent to nothing at all.
1349 If \ is followed by a null character, we return a negative
1350 value and leave the string pointer pointing at the null character.
1352 If \ is followed by 000, we return 0 and leave the string pointer
1353 after the zeros. A value of 0 does not mean end of string. */
1356 parse_escape (char **string_ptr
)
1359 int c
= *(*string_ptr
)++;
1360 if (c_parse_backslash (c
, &target_char
))
1372 /* Remember where this escape sequence started, for reporting
1374 char *sequence_start_pos
= *string_ptr
- 1;
1376 c
= *(*string_ptr
)++;
1380 /* XXXCHARSET: What is `delete' in the host character set? */
1383 if (!host_char_to_target (c
, &target_char
))
1384 error (_("There is no character corresponding to `Delete' "
1385 "in the target character set `%s'."), host_charset ());
1390 target_char
= parse_escape (string_ptr
);
1393 if (!host_char_to_target (c
, &target_char
))
1394 no_control_char_error (sequence_start_pos
, *string_ptr
);
1397 /* Now target_char is something like `c', and we want to find
1398 its control-character equivalent. */
1399 if (!target_char_to_control_char (target_char
, &target_char
))
1400 no_control_char_error (sequence_start_pos
, *string_ptr
);
1405 /* XXXCHARSET: we need to use isdigit and value-of-digit
1406 methods of the host character set here. */
1422 if (c
>= '0' && c
<= '7')
1436 if (!host_char_to_target (c
, &target_char
))
1438 ("The escape sequence `\%c' is equivalent to plain `%c', which"
1439 " has no equivalent\n" "in the `%s' character set.", c
, c
,
1445 /* Print the character C on STREAM as part of the contents of a literal
1446 string whose delimiter is QUOTER. Note that this routine should only
1447 be call for printing things which are independent of the language
1448 of the program being debugged. */
1451 printchar (int c
, void (*do_fputs
) (const char *, struct ui_file
*),
1452 void (*do_fprintf
) (struct ui_file
*, const char *, ...)
1453 ATTRIBUTE_FPTR_PRINTF_2
, struct ui_file
*stream
, int quoter
)
1456 c
&= 0xFF; /* Avoid sign bit follies */
1458 if (c
< 0x20 || /* Low control chars */
1459 (c
>= 0x7F && c
< 0xA0) || /* DEL, High controls */
1460 (sevenbit_strings
&& c
>= 0x80))
1461 { /* high order bit set */
1465 do_fputs ("\\n", stream
);
1468 do_fputs ("\\b", stream
);
1471 do_fputs ("\\t", stream
);
1474 do_fputs ("\\f", stream
);
1477 do_fputs ("\\r", stream
);
1480 do_fputs ("\\e", stream
);
1483 do_fputs ("\\a", stream
);
1486 do_fprintf (stream
, "\\%.3o", (unsigned int) c
);
1492 if (c
== '\\' || c
== quoter
)
1493 do_fputs ("\\", stream
);
1494 do_fprintf (stream
, "%c", c
);
1498 /* Print the character C on STREAM as part of the contents of a
1499 literal string whose delimiter is QUOTER. Note that these routines
1500 should only be call for printing things which are independent of
1501 the language of the program being debugged. */
1504 fputstr_filtered (const char *str
, int quoter
, struct ui_file
*stream
)
1507 printchar (*str
++, fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1511 fputstr_unfiltered (const char *str
, int quoter
, struct ui_file
*stream
)
1514 printchar (*str
++, fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1518 fputstrn_filtered (const char *str
, int n
, int quoter
,
1519 struct ui_file
*stream
)
1522 for (i
= 0; i
< n
; i
++)
1523 printchar (str
[i
], fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1527 fputstrn_unfiltered (const char *str
, int n
, int quoter
,
1528 struct ui_file
*stream
)
1531 for (i
= 0; i
< n
; i
++)
1532 printchar (str
[i
], fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1536 /* Number of lines per page or UINT_MAX if paging is disabled. */
1537 static unsigned int lines_per_page
;
1539 show_lines_per_page (struct ui_file
*file
, int from_tty
,
1540 struct cmd_list_element
*c
, const char *value
)
1542 fprintf_filtered (file
, _("\
1543 Number of lines gdb thinks are in a page is %s.\n"),
1547 /* Number of chars per line or UINT_MAX if line folding is disabled. */
1548 static unsigned int chars_per_line
;
1550 show_chars_per_line (struct ui_file
*file
, int from_tty
,
1551 struct cmd_list_element
*c
, const char *value
)
1553 fprintf_filtered (file
, _("\
1554 Number of characters gdb thinks are in a line is %s.\n"),
1558 /* Current count of lines printed on this page, chars on this line. */
1559 static unsigned int lines_printed
, chars_printed
;
1561 /* Buffer and start column of buffered text, for doing smarter word-
1562 wrapping. When someone calls wrap_here(), we start buffering output
1563 that comes through fputs_filtered(). If we see a newline, we just
1564 spit it out and forget about the wrap_here(). If we see another
1565 wrap_here(), we spit it out and remember the newer one. If we see
1566 the end of the line, we spit out a newline, the indent, and then
1567 the buffered output. */
1569 /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which
1570 are waiting to be output (they have already been counted in chars_printed).
1571 When wrap_buffer[0] is null, the buffer is empty. */
1572 static char *wrap_buffer
;
1574 /* Pointer in wrap_buffer to the next character to fill. */
1575 static char *wrap_pointer
;
1577 /* String to indent by if the wrap occurs. Must not be NULL if wrap_column
1579 static char *wrap_indent
;
1581 /* Column number on the screen where wrap_buffer begins, or 0 if wrapping
1582 is not in effect. */
1583 static int wrap_column
;
1586 /* Inialize the number of lines per page and chars per line. */
1589 init_page_info (void)
1592 if (!tui_get_command_dimension (&chars_per_line
, &lines_per_page
))
1597 #if defined(__GO32__)
1598 rows
= ScreenRows ();
1599 cols
= ScreenCols ();
1600 lines_per_page
= rows
;
1601 chars_per_line
= cols
;
1603 /* Make sure Readline has initialized its terminal settings. */
1604 rl_reset_terminal (NULL
);
1606 /* Get the screen size from Readline. */
1607 rl_get_screen_size (&rows
, &cols
);
1608 lines_per_page
= rows
;
1609 chars_per_line
= cols
;
1611 /* Readline should have fetched the termcap entry for us. */
1612 if (tgetnum ("li") < 0 || getenv ("EMACS"))
1614 /* The number of lines per page is not mentioned in the
1615 terminal description. This probably means that paging is
1616 not useful (e.g. emacs shell window), so disable paging. */
1617 lines_per_page
= UINT_MAX
;
1620 /* FIXME: Get rid of this junk. */
1621 #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
1622 SIGWINCH_HANDLER (SIGWINCH
);
1625 /* If the output is not a terminal, don't paginate it. */
1626 if (!ui_file_isatty (gdb_stdout
))
1627 lines_per_page
= UINT_MAX
;
1635 /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */
1638 set_screen_size (void)
1640 int rows
= lines_per_page
;
1641 int cols
= chars_per_line
;
1647 rl_get_screen_size (NULL
, &cols
);
1649 /* Update Readline's idea of the terminal size. */
1650 rl_set_screen_size (rows
, cols
);
1653 /* Reinitialize WRAP_BUFFER according to the current value of
1659 if (chars_per_line
== 0)
1664 wrap_buffer
= (char *) xmalloc (chars_per_line
+ 2);
1665 wrap_buffer
[0] = '\0';
1668 wrap_buffer
= (char *) xrealloc (wrap_buffer
, chars_per_line
+ 2);
1669 wrap_pointer
= wrap_buffer
; /* Start it at the beginning. */
1673 set_width_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1680 set_height_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1685 /* Wait, so the user can read what's on the screen. Prompt the user
1686 to continue by pressing RETURN. */
1689 prompt_for_continue (void)
1692 char cont_prompt
[120];
1694 if (annotation_level
> 1)
1695 printf_unfiltered (("\n\032\032pre-prompt-for-continue\n"));
1697 strcpy (cont_prompt
,
1698 "---Type <return> to continue, or q <return> to quit---");
1699 if (annotation_level
> 1)
1700 strcat (cont_prompt
, "\n\032\032prompt-for-continue\n");
1702 /* We must do this *before* we call gdb_readline, else it will eventually
1703 call us -- thinking that we're trying to print beyond the end of the
1705 reinitialize_more_filter ();
1708 /* On a real operating system, the user can quit with SIGINT.
1711 'q' is provided on all systems so users don't have to change habits
1712 from system to system, and because telling them what to do in
1713 the prompt is more user-friendly than expecting them to think of
1715 /* Call readline, not gdb_readline, because GO32 readline handles control-C
1716 whereas control-C to gdb_readline will cause the user to get dumped
1718 ignore
= gdb_readline_wrapper (cont_prompt
);
1720 if (annotation_level
> 1)
1721 printf_unfiltered (("\n\032\032post-prompt-for-continue\n"));
1726 while (*p
== ' ' || *p
== '\t')
1729 async_request_quit (0);
1734 /* Now we have to do this again, so that GDB will know that it doesn't
1735 need to save the ---Type <return>--- line at the top of the screen. */
1736 reinitialize_more_filter ();
1738 dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */
1741 /* Reinitialize filter; ie. tell it to reset to original values. */
1744 reinitialize_more_filter (void)
1750 /* Indicate that if the next sequence of characters overflows the line,
1751 a newline should be inserted here rather than when it hits the end.
1752 If INDENT is non-null, it is a string to be printed to indent the
1753 wrapped part on the next line. INDENT must remain accessible until
1754 the next call to wrap_here() or until a newline is printed through
1757 If the line is already overfull, we immediately print a newline and
1758 the indentation, and disable further wrapping.
1760 If we don't know the width of lines, but we know the page height,
1761 we must not wrap words, but should still keep track of newlines
1762 that were explicitly printed.
1764 INDENT should not contain tabs, as that will mess up the char count
1765 on the next line. FIXME.
1767 This routine is guaranteed to force out any output which has been
1768 squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be
1769 used to force out output from the wrap_buffer. */
1772 wrap_here (char *indent
)
1774 /* This should have been allocated, but be paranoid anyway. */
1776 internal_error (__FILE__
, __LINE__
, _("failed internal consistency check"));
1780 *wrap_pointer
= '\0';
1781 fputs_unfiltered (wrap_buffer
, gdb_stdout
);
1783 wrap_pointer
= wrap_buffer
;
1784 wrap_buffer
[0] = '\0';
1785 if (chars_per_line
== UINT_MAX
) /* No line overflow checking */
1789 else if (chars_printed
>= chars_per_line
)
1791 puts_filtered ("\n");
1793 puts_filtered (indent
);
1798 wrap_column
= chars_printed
;
1802 wrap_indent
= indent
;
1806 /* Print input string to gdb_stdout, filtered, with wrap,
1807 arranging strings in columns of n chars. String can be
1808 right or left justified in the column. Never prints
1809 trailing spaces. String should never be longer than
1810 width. FIXME: this could be useful for the EXAMINE
1811 command, which currently doesn't tabulate very well */
1814 puts_filtered_tabular (char *string
, int width
, int right
)
1820 gdb_assert (chars_per_line
> 0);
1821 if (chars_per_line
== UINT_MAX
)
1823 fputs_filtered (string
, gdb_stdout
);
1824 fputs_filtered ("\n", gdb_stdout
);
1828 if (((chars_printed
- 1) / width
+ 2) * width
>= chars_per_line
)
1829 fputs_filtered ("\n", gdb_stdout
);
1831 if (width
>= chars_per_line
)
1832 width
= chars_per_line
- 1;
1834 stringlen
= strlen (string
);
1836 if (chars_printed
> 0)
1837 spaces
= width
- (chars_printed
- 1) % width
- 1;
1839 spaces
+= width
- stringlen
;
1841 spacebuf
= alloca (spaces
+ 1);
1842 spacebuf
[spaces
] = '\0';
1844 spacebuf
[spaces
] = ' ';
1846 fputs_filtered (spacebuf
, gdb_stdout
);
1847 fputs_filtered (string
, gdb_stdout
);
1851 /* Ensure that whatever gets printed next, using the filtered output
1852 commands, starts at the beginning of the line. I.E. if there is
1853 any pending output for the current line, flush it and start a new
1854 line. Otherwise do nothing. */
1859 if (chars_printed
> 0)
1861 puts_filtered ("\n");
1866 /* Like fputs but if FILTER is true, pause after every screenful.
1868 Regardless of FILTER can wrap at points other than the final
1869 character of a line.
1871 Unlike fputs, fputs_maybe_filtered does not return a value.
1872 It is OK for LINEBUFFER to be NULL, in which case just don't print
1875 Note that a longjmp to top level may occur in this routine (only if
1876 FILTER is true) (since prompt_for_continue may do so) so this
1877 routine should not be called when cleanups are not in place. */
1880 fputs_maybe_filtered (const char *linebuffer
, struct ui_file
*stream
,
1883 const char *lineptr
;
1885 if (linebuffer
== 0)
1888 /* Don't do any filtering if it is disabled. */
1889 if ((stream
!= gdb_stdout
) || !pagination_enabled
1890 || (lines_per_page
== UINT_MAX
&& chars_per_line
== UINT_MAX
))
1892 fputs_unfiltered (linebuffer
, stream
);
1896 /* Go through and output each character. Show line extension
1897 when this is necessary; prompt user for new page when this is
1900 lineptr
= linebuffer
;
1903 /* Possible new page. */
1904 if (filter
&& (lines_printed
>= lines_per_page
- 1))
1905 prompt_for_continue ();
1907 while (*lineptr
&& *lineptr
!= '\n')
1909 /* Print a single line. */
1910 if (*lineptr
== '\t')
1913 *wrap_pointer
++ = '\t';
1915 fputc_unfiltered ('\t', stream
);
1916 /* Shifting right by 3 produces the number of tab stops
1917 we have already passed, and then adding one and
1918 shifting left 3 advances to the next tab stop. */
1919 chars_printed
= ((chars_printed
>> 3) + 1) << 3;
1925 *wrap_pointer
++ = *lineptr
;
1927 fputc_unfiltered (*lineptr
, stream
);
1932 if (chars_printed
>= chars_per_line
)
1934 unsigned int save_chars
= chars_printed
;
1938 /* If we aren't actually wrapping, don't output newline --
1939 if chars_per_line is right, we probably just overflowed
1940 anyway; if it's wrong, let us keep going. */
1942 fputc_unfiltered ('\n', stream
);
1944 /* Possible new page. */
1945 if (lines_printed
>= lines_per_page
- 1)
1946 prompt_for_continue ();
1948 /* Now output indentation and wrapped string */
1951 fputs_unfiltered (wrap_indent
, stream
);
1952 *wrap_pointer
= '\0'; /* Null-terminate saved stuff */
1953 fputs_unfiltered (wrap_buffer
, stream
); /* and eject it */
1954 /* FIXME, this strlen is what prevents wrap_indent from
1955 containing tabs. However, if we recurse to print it
1956 and count its chars, we risk trouble if wrap_indent is
1957 longer than (the user settable) chars_per_line.
1958 Note also that this can set chars_printed > chars_per_line
1959 if we are printing a long string. */
1960 chars_printed
= strlen (wrap_indent
)
1961 + (save_chars
- wrap_column
);
1962 wrap_pointer
= wrap_buffer
; /* Reset buffer */
1963 wrap_buffer
[0] = '\0';
1964 wrap_column
= 0; /* And disable fancy wrap */
1969 if (*lineptr
== '\n')
1972 wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */
1974 fputc_unfiltered ('\n', stream
);
1981 fputs_filtered (const char *linebuffer
, struct ui_file
*stream
)
1983 fputs_maybe_filtered (linebuffer
, stream
, 1);
1987 putchar_unfiltered (int c
)
1990 ui_file_write (gdb_stdout
, &buf
, 1);
1994 /* Write character C to gdb_stdout using GDB's paging mechanism and return C.
1995 May return nonlocally. */
1998 putchar_filtered (int c
)
2000 return fputc_filtered (c
, gdb_stdout
);
2004 fputc_unfiltered (int c
, struct ui_file
*stream
)
2007 ui_file_write (stream
, &buf
, 1);
2012 fputc_filtered (int c
, struct ui_file
*stream
)
2018 fputs_filtered (buf
, stream
);
2022 /* puts_debug is like fputs_unfiltered, except it prints special
2023 characters in printable fashion. */
2026 puts_debug (char *prefix
, char *string
, char *suffix
)
2030 /* Print prefix and suffix after each line. */
2031 static int new_line
= 1;
2032 static int return_p
= 0;
2033 static char *prev_prefix
= "";
2034 static char *prev_suffix
= "";
2036 if (*string
== '\n')
2039 /* If the prefix is changing, print the previous suffix, a new line,
2040 and the new prefix. */
2041 if ((return_p
|| (strcmp (prev_prefix
, prefix
) != 0)) && !new_line
)
2043 fputs_unfiltered (prev_suffix
, gdb_stdlog
);
2044 fputs_unfiltered ("\n", gdb_stdlog
);
2045 fputs_unfiltered (prefix
, gdb_stdlog
);
2048 /* Print prefix if we printed a newline during the previous call. */
2052 fputs_unfiltered (prefix
, gdb_stdlog
);
2055 prev_prefix
= prefix
;
2056 prev_suffix
= suffix
;
2058 /* Output characters in a printable format. */
2059 while ((ch
= *string
++) != '\0')
2065 fputc_unfiltered (ch
, gdb_stdlog
);
2068 fprintf_unfiltered (gdb_stdlog
, "\\x%02x", ch
& 0xff);
2072 fputs_unfiltered ("\\\\", gdb_stdlog
);
2075 fputs_unfiltered ("\\b", gdb_stdlog
);
2078 fputs_unfiltered ("\\f", gdb_stdlog
);
2082 fputs_unfiltered ("\\n", gdb_stdlog
);
2085 fputs_unfiltered ("\\r", gdb_stdlog
);
2088 fputs_unfiltered ("\\t", gdb_stdlog
);
2091 fputs_unfiltered ("\\v", gdb_stdlog
);
2095 return_p
= ch
== '\r';
2098 /* Print suffix if we printed a newline. */
2101 fputs_unfiltered (suffix
, gdb_stdlog
);
2102 fputs_unfiltered ("\n", gdb_stdlog
);
2107 /* Print a variable number of ARGS using format FORMAT. If this
2108 information is going to put the amount written (since the last call
2109 to REINITIALIZE_MORE_FILTER or the last page break) over the page size,
2110 call prompt_for_continue to get the users permision to continue.
2112 Unlike fprintf, this function does not return a value.
2114 We implement three variants, vfprintf (takes a vararg list and stream),
2115 fprintf (takes a stream to write on), and printf (the usual).
2117 Note also that a longjmp to top level may occur in this routine
2118 (since prompt_for_continue may do so) so this routine should not be
2119 called when cleanups are not in place. */
2122 vfprintf_maybe_filtered (struct ui_file
*stream
, const char *format
,
2123 va_list args
, int filter
)
2126 struct cleanup
*old_cleanups
;
2128 linebuffer
= xstrvprintf (format
, args
);
2129 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2130 fputs_maybe_filtered (linebuffer
, stream
, filter
);
2131 do_cleanups (old_cleanups
);
2136 vfprintf_filtered (struct ui_file
*stream
, const char *format
, va_list args
)
2138 vfprintf_maybe_filtered (stream
, format
, args
, 1);
2142 vfprintf_unfiltered (struct ui_file
*stream
, const char *format
, va_list args
)
2145 struct cleanup
*old_cleanups
;
2147 linebuffer
= xstrvprintf (format
, args
);
2148 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2149 fputs_unfiltered (linebuffer
, stream
);
2150 do_cleanups (old_cleanups
);
2154 vprintf_filtered (const char *format
, va_list args
)
2156 vfprintf_maybe_filtered (gdb_stdout
, format
, args
, 1);
2160 vprintf_unfiltered (const char *format
, va_list args
)
2162 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2166 fprintf_filtered (struct ui_file
*stream
, const char *format
, ...)
2169 va_start (args
, format
);
2170 vfprintf_filtered (stream
, format
, args
);
2175 fprintf_unfiltered (struct ui_file
*stream
, const char *format
, ...)
2178 va_start (args
, format
);
2179 vfprintf_unfiltered (stream
, format
, args
);
2183 /* Like fprintf_filtered, but prints its result indented.
2184 Called as fprintfi_filtered (spaces, stream, format, ...); */
2187 fprintfi_filtered (int spaces
, struct ui_file
*stream
, const char *format
,
2191 va_start (args
, format
);
2192 print_spaces_filtered (spaces
, stream
);
2194 vfprintf_filtered (stream
, format
, args
);
2200 printf_filtered (const char *format
, ...)
2203 va_start (args
, format
);
2204 vfprintf_filtered (gdb_stdout
, format
, args
);
2210 printf_unfiltered (const char *format
, ...)
2213 va_start (args
, format
);
2214 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2218 /* Like printf_filtered, but prints it's result indented.
2219 Called as printfi_filtered (spaces, format, ...); */
2222 printfi_filtered (int spaces
, const char *format
, ...)
2225 va_start (args
, format
);
2226 print_spaces_filtered (spaces
, gdb_stdout
);
2227 vfprintf_filtered (gdb_stdout
, format
, args
);
2231 /* Easy -- but watch out!
2233 This routine is *not* a replacement for puts()! puts() appends a newline.
2234 This one doesn't, and had better not! */
2237 puts_filtered (const char *string
)
2239 fputs_filtered (string
, gdb_stdout
);
2243 puts_unfiltered (const char *string
)
2245 fputs_unfiltered (string
, gdb_stdout
);
2248 /* Return a pointer to N spaces and a null. The pointer is good
2249 until the next call to here. */
2254 static char *spaces
= 0;
2255 static int max_spaces
= -1;
2261 spaces
= (char *) xmalloc (n
+ 1);
2262 for (t
= spaces
+ n
; t
!= spaces
;)
2268 return spaces
+ max_spaces
- n
;
2271 /* Print N spaces. */
2273 print_spaces_filtered (int n
, struct ui_file
*stream
)
2275 fputs_filtered (n_spaces (n
), stream
);
2278 /* C++/ObjC demangler stuff. */
2280 /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language
2281 LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
2282 If the name is not mangled, or the language for the name is unknown, or
2283 demangling is off, the name is printed in its "raw" form. */
2286 fprintf_symbol_filtered (struct ui_file
*stream
, char *name
,
2287 enum language lang
, int arg_mode
)
2293 /* If user wants to see raw output, no problem. */
2296 fputs_filtered (name
, stream
);
2300 demangled
= language_demangle (language_def (lang
), name
, arg_mode
);
2301 fputs_filtered (demangled
? demangled
: name
, stream
);
2302 if (demangled
!= NULL
)
2310 /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any
2311 differences in whitespace. Returns 0 if they match, non-zero if they
2312 don't (slightly different than strcmp()'s range of return values).
2314 As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO".
2315 This "feature" is useful when searching for matching C++ function names
2316 (such as if the user types 'break FOO', where FOO is a mangled C++
2320 strcmp_iw (const char *string1
, const char *string2
)
2322 while ((*string1
!= '\0') && (*string2
!= '\0'))
2324 while (isspace (*string1
))
2328 while (isspace (*string2
))
2332 if (*string1
!= *string2
)
2336 if (*string1
!= '\0')
2342 return (*string1
!= '\0' && *string1
!= '(') || (*string2
!= '\0');
2345 /* This is like strcmp except that it ignores whitespace and treats
2346 '(' as the first non-NULL character in terms of ordering. Like
2347 strcmp (and unlike strcmp_iw), it returns negative if STRING1 <
2348 STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2
2349 according to that ordering.
2351 If a list is sorted according to this function and if you want to
2352 find names in the list that match some fixed NAME according to
2353 strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
2354 where this function would put NAME.
2356 Here are some examples of why using strcmp to sort is a bad idea:
2360 Say your partial symtab contains: "foo<char *>", "goo". Then, if
2361 we try to do a search for "foo<char*>", strcmp will locate this
2362 after "foo<char *>" and before "goo". Then lookup_partial_symbol
2363 will start looking at strings beginning with "goo", and will never
2364 see the correct match of "foo<char *>".
2366 Parenthesis example:
2368 In practice, this is less like to be an issue, but I'll give it a
2369 shot. Let's assume that '$' is a legitimate character to occur in
2370 symbols. (Which may well even be the case on some systems.) Then
2371 say that the partial symbol table contains "foo$" and "foo(int)".
2372 strcmp will put them in this order, since '$' < '('. Now, if the
2373 user searches for "foo", then strcmp will sort "foo" before "foo$".
2374 Then lookup_partial_symbol will notice that strcmp_iw("foo$",
2375 "foo") is false, so it won't proceed to the actual match of
2376 "foo(int)" with "foo". */
2379 strcmp_iw_ordered (const char *string1
, const char *string2
)
2381 while ((*string1
!= '\0') && (*string2
!= '\0'))
2383 while (isspace (*string1
))
2387 while (isspace (*string2
))
2391 if (*string1
!= *string2
)
2395 if (*string1
!= '\0')
2404 /* Characters are non-equal unless they're both '\0'; we want to
2405 make sure we get the comparison right according to our
2406 comparison in the cases where one of them is '\0' or '('. */
2408 if (*string2
== '\0')
2413 if (*string2
== '\0')
2418 if (*string2
== '(')
2421 return *string1
- *string2
;
2425 /* A simple comparison function with opposite semantics to strcmp. */
2428 streq (const char *lhs
, const char *rhs
)
2430 return !strcmp (lhs
, rhs
);
2436 ** Answer whether string_to_compare is a full or partial match to
2437 ** template_string. The partial match must be in sequence starting
2441 subset_compare (char *string_to_compare
, char *template_string
)
2444 if (template_string
!= (char *) NULL
&& string_to_compare
!= (char *) NULL
2445 && strlen (string_to_compare
) <= strlen (template_string
))
2448 (template_string
, string_to_compare
, strlen (string_to_compare
)) == 0);
2455 static void pagination_on_command (char *arg
, int from_tty
);
2457 pagination_on_command (char *arg
, int from_tty
)
2459 pagination_enabled
= 1;
2462 static void pagination_on_command (char *arg
, int from_tty
);
2464 pagination_off_command (char *arg
, int from_tty
)
2466 pagination_enabled
= 0;
2471 initialize_utils (void)
2473 struct cmd_list_element
*c
;
2475 add_setshow_uinteger_cmd ("width", class_support
, &chars_per_line
, _("\
2476 Set number of characters gdb thinks are in a line."), _("\
2477 Show number of characters gdb thinks are in a line."), NULL
,
2479 show_chars_per_line
,
2480 &setlist
, &showlist
);
2482 add_setshow_uinteger_cmd ("height", class_support
, &lines_per_page
, _("\
2483 Set number of lines gdb thinks are in a page."), _("\
2484 Show number of lines gdb thinks are in a page."), NULL
,
2486 show_lines_per_page
,
2487 &setlist
, &showlist
);
2491 add_setshow_boolean_cmd ("demangle", class_support
, &demangle
, _("\
2492 Set demangling of encoded C++/ObjC names when displaying symbols."), _("\
2493 Show demangling of encoded C++/ObjC names when displaying symbols."), NULL
,
2496 &setprintlist
, &showprintlist
);
2498 add_setshow_boolean_cmd ("pagination", class_support
,
2499 &pagination_enabled
, _("\
2500 Set state of pagination."), _("\
2501 Show state of pagination."), NULL
,
2503 show_pagination_enabled
,
2504 &setlist
, &showlist
);
2508 add_com ("am", class_support
, pagination_on_command
,
2509 _("Enable pagination"));
2510 add_com ("sm", class_support
, pagination_off_command
,
2511 _("Disable pagination"));
2514 add_setshow_boolean_cmd ("sevenbit-strings", class_support
,
2515 &sevenbit_strings
, _("\
2516 Set printing of 8-bit characters in strings as \\nnn."), _("\
2517 Show printing of 8-bit characters in strings as \\nnn."), NULL
,
2519 show_sevenbit_strings
,
2520 &setprintlist
, &showprintlist
);
2522 add_setshow_boolean_cmd ("asm-demangle", class_support
, &asm_demangle
, _("\
2523 Set demangling of C++/ObjC names in disassembly listings."), _("\
2524 Show demangling of C++/ObjC names in disassembly listings."), NULL
,
2527 &setprintlist
, &showprintlist
);
2530 /* Machine specific function to handle SIGWINCH signal. */
2532 #ifdef SIGWINCH_HANDLER_BODY
2533 SIGWINCH_HANDLER_BODY
2535 /* print routines to handle variable size regs, etc. */
2536 /* temporary storage using circular buffer */
2542 static char buf
[NUMCELLS
][CELLSIZE
];
2543 static int cell
= 0;
2544 if (++cell
>= NUMCELLS
)
2552 return (TARGET_ADDR_BIT
/ 8 * 2);
2556 paddr (CORE_ADDR addr
)
2558 return phex (addr
, TARGET_ADDR_BIT
/ 8);
2562 paddr_nz (CORE_ADDR addr
)
2564 return phex_nz (addr
, TARGET_ADDR_BIT
/ 8);
2568 paddress (CORE_ADDR addr
)
2570 /* Truncate address to the size of a target address, avoiding shifts
2571 larger or equal than the width of a CORE_ADDR. The local
2572 variable ADDR_BIT stops the compiler reporting a shift overflow
2573 when it won't occur. */
2574 /* NOTE: This assumes that the significant address information is
2575 kept in the least significant bits of ADDR - the upper bits were
2576 either zero or sign extended. Should ADDRESS_TO_POINTER() or
2577 some ADDRESS_TO_PRINTABLE() be used to do the conversion? */
2579 int addr_bit
= TARGET_ADDR_BIT
;
2581 if (addr_bit
< (sizeof (CORE_ADDR
) * HOST_CHAR_BIT
))
2582 addr
&= ((CORE_ADDR
) 1 << addr_bit
) - 1;
2583 return hex_string (addr
);
2587 decimal2str (char *sign
, ULONGEST addr
, int width
)
2589 /* Steal code from valprint.c:print_decimal(). Should this worry
2590 about the real size of addr as the above does? */
2591 unsigned long temp
[3];
2592 char *str
= get_cell ();
2597 temp
[i
] = addr
% (1000 * 1000 * 1000);
2598 addr
/= (1000 * 1000 * 1000);
2602 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2611 xsnprintf (str
, CELLSIZE
, "%s%0*lu", sign
, width
, temp
[0]);
2614 xsnprintf (str
, CELLSIZE
, "%s%0*lu%09lu", sign
, width
,
2618 xsnprintf (str
, CELLSIZE
, "%s%0*lu%09lu%09lu", sign
, width
,
2619 temp
[2], temp
[1], temp
[0]);
2622 internal_error (__FILE__
, __LINE__
,
2623 _("failed internal consistency check"));
2630 octal2str (ULONGEST addr
, int width
)
2632 unsigned long temp
[3];
2633 char *str
= get_cell ();
2638 temp
[i
] = addr
% (0100000 * 0100000);
2639 addr
/= (0100000 * 0100000);
2643 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2653 xsnprintf (str
, CELLSIZE
, "%*o", width
, 0);
2655 xsnprintf (str
, CELLSIZE
, "0%0*lo", width
, temp
[0]);
2658 xsnprintf (str
, CELLSIZE
, "0%0*lo%010lo", width
, temp
[1], temp
[0]);
2661 xsnprintf (str
, CELLSIZE
, "0%0*lo%010lo%010lo", width
,
2662 temp
[2], temp
[1], temp
[0]);
2665 internal_error (__FILE__
, __LINE__
,
2666 _("failed internal consistency check"));
2673 paddr_u (CORE_ADDR addr
)
2675 return decimal2str ("", addr
, 0);
2679 paddr_d (LONGEST addr
)
2682 return decimal2str ("-", -addr
, 0);
2684 return decimal2str ("", addr
, 0);
2687 /* Eliminate warning from compiler on 32-bit systems. */
2688 static int thirty_two
= 32;
2691 phex (ULONGEST l
, int sizeof_l
)
2699 xsnprintf (str
, CELLSIZE
, "%08lx%08lx",
2700 (unsigned long) (l
>> thirty_two
),
2701 (unsigned long) (l
& 0xffffffff));
2705 xsnprintf (str
, CELLSIZE
, "%08lx", (unsigned long) l
);
2709 xsnprintf (str
, CELLSIZE
, "%04x", (unsigned short) (l
& 0xffff));
2712 str
= phex (l
, sizeof (l
));
2720 phex_nz (ULONGEST l
, int sizeof_l
)
2728 unsigned long high
= (unsigned long) (l
>> thirty_two
);
2731 xsnprintf (str
, CELLSIZE
, "%lx",
2732 (unsigned long) (l
& 0xffffffff));
2734 xsnprintf (str
, CELLSIZE
, "%lx%08lx", high
,
2735 (unsigned long) (l
& 0xffffffff));
2740 xsnprintf (str
, CELLSIZE
, "%lx", (unsigned long) l
);
2744 xsnprintf (str
, CELLSIZE
, "%x", (unsigned short) (l
& 0xffff));
2747 str
= phex_nz (l
, sizeof (l
));
2754 /* Converts a LONGEST to a C-format hexadecimal literal and stores it
2755 in a static string. Returns a pointer to this string. */
2757 hex_string (LONGEST num
)
2759 char *result
= get_cell ();
2760 xsnprintf (result
, CELLSIZE
, "0x%s", phex_nz (num
, sizeof (num
)));
2764 /* Converts a LONGEST number to a C-format hexadecimal literal and
2765 stores it in a static string. Returns a pointer to this string
2766 that is valid until the next call. The number is padded on the
2767 left with 0s to at least WIDTH characters. */
2769 hex_string_custom (LONGEST num
, int width
)
2771 char *result
= get_cell ();
2772 char *result_end
= result
+ CELLSIZE
- 1;
2773 const char *hex
= phex_nz (num
, sizeof (num
));
2774 int hex_len
= strlen (hex
);
2776 if (hex_len
> width
)
2778 if (width
+ 2 >= CELLSIZE
)
2779 internal_error (__FILE__
, __LINE__
,
2780 _("hex_string_custom: insufficient space to store result"));
2782 strcpy (result_end
- width
- 2, "0x");
2783 memset (result_end
- width
, '0', width
);
2784 strcpy (result_end
- hex_len
, hex
);
2785 return result_end
- width
- 2;
2788 /* Convert VAL to a numeral in the given radix. For
2789 * radix 10, IS_SIGNED may be true, indicating a signed quantity;
2790 * otherwise VAL is interpreted as unsigned. If WIDTH is supplied,
2791 * it is the minimum width (0-padded if needed). USE_C_FORMAT means
2792 * to use C format in all cases. If it is false, then 'x'
2793 * and 'o' formats do not include a prefix (0x or leading 0). */
2796 int_string (LONGEST val
, int radix
, int is_signed
, int width
,
2805 result
= hex_string (val
);
2807 result
= hex_string_custom (val
, width
);
2814 if (is_signed
&& val
< 0)
2815 return decimal2str ("-", -val
, width
);
2817 return decimal2str ("", val
, width
);
2821 char *result
= octal2str (val
, width
);
2822 if (use_c_format
|| val
== 0)
2828 internal_error (__FILE__
, __LINE__
,
2829 _("failed internal consistency check"));
2833 /* Convert a CORE_ADDR into a string. */
2835 core_addr_to_string (const CORE_ADDR addr
)
2837 char *str
= get_cell ();
2839 strcat (str
, phex (addr
, sizeof (addr
)));
2844 core_addr_to_string_nz (const CORE_ADDR addr
)
2846 char *str
= get_cell ();
2848 strcat (str
, phex_nz (addr
, sizeof (addr
)));
2852 /* Convert a string back into a CORE_ADDR. */
2854 string_to_core_addr (const char *my_string
)
2857 if (my_string
[0] == '0' && tolower (my_string
[1]) == 'x')
2859 /* Assume that it is in decimal. */
2861 for (i
= 2; my_string
[i
] != '\0'; i
++)
2863 if (isdigit (my_string
[i
]))
2864 addr
= (my_string
[i
] - '0') + (addr
* 16);
2865 else if (isxdigit (my_string
[i
]))
2866 addr
= (tolower (my_string
[i
]) - 'a' + 0xa) + (addr
* 16);
2868 error (_("invalid hex \"%s\""), my_string
);
2873 /* Assume that it is in decimal. */
2875 for (i
= 0; my_string
[i
] != '\0'; i
++)
2877 if (isdigit (my_string
[i
]))
2878 addr
= (my_string
[i
] - '0') + (addr
* 10);
2880 error (_("invalid decimal \"%s\""), my_string
);
2887 gdb_realpath (const char *filename
)
2889 /* Method 1: The system has a compile time upper bound on a filename
2890 path. Use that and realpath() to canonicalize the name. This is
2891 the most common case. Note that, if there isn't a compile time
2892 upper bound, you want to avoid realpath() at all costs. */
2893 #if defined(HAVE_REALPATH)
2895 # if defined (PATH_MAX)
2897 # define USE_REALPATH
2898 # elif defined (MAXPATHLEN)
2899 char buf
[MAXPATHLEN
];
2900 # define USE_REALPATH
2902 # if defined (USE_REALPATH)
2903 const char *rp
= realpath (filename
, buf
);
2906 return xstrdup (rp
);
2909 #endif /* HAVE_REALPATH */
2911 /* Method 2: The host system (i.e., GNU) has the function
2912 canonicalize_file_name() which malloc's a chunk of memory and
2913 returns that, use that. */
2914 #if defined(HAVE_CANONICALIZE_FILE_NAME)
2916 char *rp
= canonicalize_file_name (filename
);
2918 return xstrdup (filename
);
2924 /* FIXME: cagney/2002-11-13:
2926 Method 2a: Use realpath() with a NULL buffer. Some systems, due
2927 to the problems described in in method 3, have modified their
2928 realpath() implementation so that it will allocate a buffer when
2929 NULL is passed in. Before this can be used, though, some sort of
2930 configure time test would need to be added. Otherwize the code
2931 will likely core dump. */
2933 /* Method 3: Now we're getting desperate! The system doesn't have a
2934 compile time buffer size and no alternative function. Query the
2935 OS, using pathconf(), for the buffer limit. Care is needed
2936 though, some systems do not limit PATH_MAX (return -1 for
2937 pathconf()) making it impossible to pass a correctly sized buffer
2938 to realpath() (it could always overflow). On those systems, we
2940 #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
2942 /* Find out the max path size. */
2943 long path_max
= pathconf ("/", _PC_PATH_MAX
);
2946 /* PATH_MAX is bounded. */
2947 char *buf
= alloca (path_max
);
2948 char *rp
= realpath (filename
, buf
);
2949 return xstrdup (rp
? rp
: filename
);
2954 /* This system is a lost cause, just dup the buffer. */
2955 return xstrdup (filename
);
2958 /* Return a copy of FILENAME, with its directory prefix canonicalized
2962 xfullpath (const char *filename
)
2964 const char *base_name
= lbasename (filename
);
2969 /* Extract the basename of filename, and return immediately
2970 a copy of filename if it does not contain any directory prefix. */
2971 if (base_name
== filename
)
2972 return xstrdup (filename
);
2974 dir_name
= alloca ((size_t) (base_name
- filename
+ 2));
2975 /* Allocate enough space to store the dir_name + plus one extra
2976 character sometimes needed under Windows (see below), and
2977 then the closing \000 character */
2978 strncpy (dir_name
, filename
, base_name
- filename
);
2979 dir_name
[base_name
- filename
] = '\000';
2981 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2982 /* We need to be careful when filename is of the form 'd:foo', which
2983 is equivalent of d:./foo, which is totally different from d:/foo. */
2984 if (strlen (dir_name
) == 2 && isalpha (dir_name
[0]) && dir_name
[1] == ':')
2987 dir_name
[3] = '\000';
2991 /* Canonicalize the directory prefix, and build the resulting
2992 filename. If the dirname realpath already contains an ending
2993 directory separator, avoid doubling it. */
2994 real_path
= gdb_realpath (dir_name
);
2995 if (IS_DIR_SEPARATOR (real_path
[strlen (real_path
) - 1]))
2996 result
= concat (real_path
, base_name
, (char *)NULL
);
2998 result
= concat (real_path
, SLASH_STRING
, base_name
, (char *)NULL
);
3005 /* This is the 32-bit CRC function used by the GNU separate debug
3006 facility. An executable may contain a section named
3007 .gnu_debuglink, which holds the name of a separate executable file
3008 containing its debug info, and a checksum of that file's contents,
3009 computed using this function. */
3011 gnu_debuglink_crc32 (unsigned long crc
, unsigned char *buf
, size_t len
)
3013 static const unsigned long crc32_table
[256] = {
3014 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
3015 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
3016 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
3017 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
3018 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
3019 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
3020 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
3021 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
3022 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
3023 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
3024 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
3025 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
3026 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
3027 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
3028 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
3029 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
3030 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
3031 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
3032 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
3033 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
3034 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
3035 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
3036 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
3037 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
3038 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
3039 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
3040 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
3041 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
3042 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
3043 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
3044 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
3045 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
3046 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
3047 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
3048 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
3049 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
3050 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
3051 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
3052 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
3053 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
3054 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
3055 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
3056 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
3057 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
3058 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
3059 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
3060 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
3061 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
3062 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
3063 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
3064 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
3069 crc
= ~crc
& 0xffffffff;
3070 for (end
= buf
+ len
; buf
< end
; ++buf
)
3071 crc
= crc32_table
[(crc
^ *buf
) & 0xff] ^ (crc
>> 8);
3072 return ~crc
& 0xffffffff;;
3076 align_up (ULONGEST v
, int n
)
3078 /* Check that N is really a power of two. */
3079 gdb_assert (n
&& (n
& (n
-1)) == 0);
3080 return (v
+ n
- 1) & -n
;
3084 align_down (ULONGEST v
, int n
)
3086 /* Check that N is really a power of two. */
3087 gdb_assert (n
&& (n
& (n
-1)) == 0);
3091 /* Allocation function for the libiberty hash table which uses an
3092 obstack. The obstack is passed as DATA. */
3095 hashtab_obstack_allocate (void *data
, size_t size
, size_t count
)
3097 unsigned int total
= size
* count
;
3098 void *ptr
= obstack_alloc ((struct obstack
*) data
, total
);
3099 memset (ptr
, 0, total
);
3103 /* Trivial deallocation function for the libiberty splay tree and hash
3104 table - don't deallocate anything. Rely on later deletion of the
3105 obstack. DATA will be the obstack, although it is not needed
3109 dummy_obstack_deallocate (void *object
, void *data
)
3114 /* The bit offset of the highest byte in a ULONGEST, for overflow
3117 #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT)
3119 /* True (non-zero) iff DIGIT is a valid digit in radix BASE,
3120 where 2 <= BASE <= 36. */
3123 is_digit_in_base (unsigned char digit
, int base
)
3125 if (!isalnum (digit
))
3128 return (isdigit (digit
) && digit
< base
+ '0');
3130 return (isdigit (digit
) || tolower (digit
) < base
- 10 + 'a');
3134 digit_to_int (unsigned char c
)
3139 return tolower (c
) - 'a' + 10;
3142 /* As for strtoul, but for ULONGEST results. */
3145 strtoulst (const char *num
, const char **trailer
, int base
)
3147 unsigned int high_part
;
3152 /* Skip leading whitespace. */
3153 while (isspace (num
[i
]))
3156 /* Handle prefixes. */
3159 else if (num
[i
] == '-')
3165 if (base
== 0 || base
== 16)
3167 if (num
[i
] == '0' && (num
[i
+ 1] == 'x' || num
[i
+ 1] == 'X'))
3175 if (base
== 0 && num
[i
] == '0')
3181 if (base
< 2 || base
> 36)
3187 result
= high_part
= 0;
3188 for (; is_digit_in_base (num
[i
], base
); i
+= 1)
3190 result
= result
* base
+ digit_to_int (num
[i
]);
3191 high_part
= high_part
* base
+ (unsigned int) (result
>> HIGH_BYTE_POSN
);
3192 result
&= ((ULONGEST
) 1 << HIGH_BYTE_POSN
) - 1;
3193 if (high_part
> 0xff)
3196 result
= ~ (ULONGEST
) 0;
3203 if (trailer
!= NULL
)
3206 result
= result
+ ((ULONGEST
) high_part
<< HIGH_BYTE_POSN
);