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
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 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 #include "gdb_assert.h"
25 #include "gdb_string.h"
26 #include "event-top.h"
27 #include "exceptions.h"
30 #include "tui/tui.h" /* For tui_get_command_dimension. */
37 /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */
48 #include "expression.h"
52 #include "filenames.h"
54 #include "gdb_obstack.h"
57 #include "inferior.h" /* for signed_pointer_to_address */
59 #include <sys/param.h> /* For MAXPATHLEN */
61 #include "gdb_curses.h"
63 #include "readline/readline.h"
66 extern PTR
malloc (); /* OK: PTR */
68 #if !HAVE_DECL_REALLOC
69 extern PTR
realloc (); /* OK: PTR */
75 /* readline defines this. */
78 void (*deprecated_error_begin_hook
) (void);
80 /* Prototypes for local functions */
82 static void vfprintf_maybe_filtered (struct ui_file
*, const char *,
83 va_list, int) ATTR_FORMAT (printf
, 2, 0);
85 static void fputs_maybe_filtered (const char *, struct ui_file
*, int);
87 static void do_my_cleanups (struct cleanup
**, struct cleanup
*);
89 static void prompt_for_continue (void);
91 static void set_screen_size (void);
92 static void set_width (void);
94 /* Chain of cleanup actions established with make_cleanup,
95 to be executed if an error happens. */
97 static struct cleanup
*cleanup_chain
; /* cleaned up after a failed command */
98 static struct cleanup
*final_cleanup_chain
; /* cleaned up when gdb exits */
99 static struct cleanup
*exec_cleanup_chain
; /* cleaned up on each execution command */
100 /* cleaned up on each error from within an execution command */
101 static struct cleanup
*exec_error_cleanup_chain
;
103 /* Pointer to what is left to do for an execution command after the
104 target stops. Used only in asynchronous mode, by targets that
105 support async execution. The finish and until commands use it. So
106 does the target extended-remote command. */
107 struct continuation
*cmd_continuation
;
108 struct continuation
*intermediate_continuation
;
110 /* Nonzero if we have job control. */
114 /* Nonzero means a quit has been requested. */
118 /* Nonzero means quit immediately if Control-C is typed now, rather
119 than waiting until QUIT is executed. Be careful in setting this;
120 code which executes with immediate_quit set has to be very careful
121 about being able to deal with being interrupted at any time. It is
122 almost always better to use QUIT; the only exception I can think of
123 is being able to quit out of a system call (using EINTR loses if
124 the SIGINT happens between the previous QUIT and the system call).
125 To immediately quit in the case in which a SIGINT happens between
126 the previous QUIT and setting immediate_quit (desirable anytime we
127 expect to block), call QUIT after setting immediate_quit. */
131 /* Nonzero means that encoded C++/ObjC names should be printed out in their
132 C++/ObjC form rather than raw. */
136 show_demangle (struct ui_file
*file
, int from_tty
,
137 struct cmd_list_element
*c
, const char *value
)
139 fprintf_filtered (file
, _("\
140 Demangling of encoded C++/ObjC names when displaying symbols is %s.\n"),
144 /* Nonzero means that encoded C++/ObjC names should be printed out in their
145 C++/ObjC form even in assembler language displays. If this is set, but
146 DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */
148 int asm_demangle
= 0;
150 show_asm_demangle (struct ui_file
*file
, int from_tty
,
151 struct cmd_list_element
*c
, const char *value
)
153 fprintf_filtered (file
, _("\
154 Demangling of C++/ObjC names in disassembly listings is %s.\n"),
158 /* Nonzero means that strings with character values >0x7F should be printed
159 as octal escapes. Zero means just print the value (e.g. it's an
160 international character, and the terminal or window can cope.) */
162 int sevenbit_strings
= 0;
164 show_sevenbit_strings (struct ui_file
*file
, int from_tty
,
165 struct cmd_list_element
*c
, const char *value
)
167 fprintf_filtered (file
, _("\
168 Printing of 8-bit characters in strings as \\nnn is %s.\n"),
172 /* String to be printed before error messages, if any. */
174 char *error_pre_print
;
176 /* String to be printed before quit messages, if any. */
178 char *quit_pre_print
;
180 /* String to be printed before warning messages, if any. */
182 char *warning_pre_print
= "\nwarning: ";
184 int pagination_enabled
= 1;
186 show_pagination_enabled (struct ui_file
*file
, int from_tty
,
187 struct cmd_list_element
*c
, const char *value
)
189 fprintf_filtered (file
, _("State of pagination is %s.\n"), value
);
194 /* Add a new cleanup to the cleanup_chain,
195 and return the previous chain pointer
196 to be passed later to do_cleanups or discard_cleanups.
197 Args are FUNCTION to clean up with, and ARG to pass to it. */
200 make_cleanup (make_cleanup_ftype
*function
, void *arg
)
202 return make_my_cleanup (&cleanup_chain
, function
, arg
);
206 make_final_cleanup (make_cleanup_ftype
*function
, void *arg
)
208 return make_my_cleanup (&final_cleanup_chain
, function
, arg
);
212 make_exec_cleanup (make_cleanup_ftype
*function
, void *arg
)
214 return make_my_cleanup (&exec_cleanup_chain
, function
, arg
);
218 make_exec_error_cleanup (make_cleanup_ftype
*function
, void *arg
)
220 return make_my_cleanup (&exec_error_cleanup_chain
, function
, arg
);
224 do_freeargv (void *arg
)
226 freeargv ((char **) arg
);
230 make_cleanup_freeargv (char **arg
)
232 return make_my_cleanup (&cleanup_chain
, do_freeargv
, arg
);
236 do_bfd_close_cleanup (void *arg
)
242 make_cleanup_bfd_close (bfd
*abfd
)
244 return make_cleanup (do_bfd_close_cleanup
, abfd
);
248 do_close_cleanup (void *arg
)
256 make_cleanup_close (int fd
)
258 int *saved_fd
= xmalloc (sizeof (fd
));
260 return make_cleanup (do_close_cleanup
, saved_fd
);
264 do_ui_file_delete (void *arg
)
266 ui_file_delete (arg
);
270 make_cleanup_ui_file_delete (struct ui_file
*arg
)
272 return make_my_cleanup (&cleanup_chain
, do_ui_file_delete
, arg
);
276 do_free_section_addr_info (void *arg
)
278 free_section_addr_info (arg
);
282 make_cleanup_free_section_addr_info (struct section_addr_info
*addrs
)
284 return make_my_cleanup (&cleanup_chain
, do_free_section_addr_info
, addrs
);
289 make_my_cleanup (struct cleanup
**pmy_chain
, make_cleanup_ftype
*function
,
293 = (struct cleanup
*) xmalloc (sizeof (struct cleanup
));
294 struct cleanup
*old_chain
= *pmy_chain
;
296 new->next
= *pmy_chain
;
297 new->function
= function
;
304 /* Discard cleanups and do the actions they describe
305 until we get back to the point OLD_CHAIN in the cleanup_chain. */
308 do_cleanups (struct cleanup
*old_chain
)
310 do_my_cleanups (&cleanup_chain
, old_chain
);
314 do_final_cleanups (struct cleanup
*old_chain
)
316 do_my_cleanups (&final_cleanup_chain
, old_chain
);
320 do_exec_cleanups (struct cleanup
*old_chain
)
322 do_my_cleanups (&exec_cleanup_chain
, old_chain
);
326 do_exec_error_cleanups (struct cleanup
*old_chain
)
328 do_my_cleanups (&exec_error_cleanup_chain
, old_chain
);
332 do_my_cleanups (struct cleanup
**pmy_chain
,
333 struct cleanup
*old_chain
)
336 while ((ptr
= *pmy_chain
) != old_chain
)
338 *pmy_chain
= ptr
->next
; /* Do this first incase recursion */
339 (*ptr
->function
) (ptr
->arg
);
344 /* Discard cleanups, not doing the actions they describe,
345 until we get back to the point OLD_CHAIN in the cleanup_chain. */
348 discard_cleanups (struct cleanup
*old_chain
)
350 discard_my_cleanups (&cleanup_chain
, old_chain
);
354 discard_final_cleanups (struct cleanup
*old_chain
)
356 discard_my_cleanups (&final_cleanup_chain
, old_chain
);
360 discard_exec_error_cleanups (struct cleanup
*old_chain
)
362 discard_my_cleanups (&exec_error_cleanup_chain
, old_chain
);
366 discard_my_cleanups (struct cleanup
**pmy_chain
,
367 struct cleanup
*old_chain
)
370 while ((ptr
= *pmy_chain
) != old_chain
)
372 *pmy_chain
= ptr
->next
;
377 /* Set the cleanup_chain to 0, and return the old cleanup chain. */
381 return save_my_cleanups (&cleanup_chain
);
385 save_final_cleanups (void)
387 return save_my_cleanups (&final_cleanup_chain
);
391 save_my_cleanups (struct cleanup
**pmy_chain
)
393 struct cleanup
*old_chain
= *pmy_chain
;
399 /* Restore the cleanup chain from a previously saved chain. */
401 restore_cleanups (struct cleanup
*chain
)
403 restore_my_cleanups (&cleanup_chain
, chain
);
407 restore_final_cleanups (struct cleanup
*chain
)
409 restore_my_cleanups (&final_cleanup_chain
, chain
);
413 restore_my_cleanups (struct cleanup
**pmy_chain
, struct cleanup
*chain
)
418 /* This function is useful for cleanups.
422 old_chain = make_cleanup (free_current_contents, &foo);
424 to arrange to free the object thus allocated. */
427 free_current_contents (void *ptr
)
429 void **location
= ptr
;
430 if (location
== NULL
)
431 internal_error (__FILE__
, __LINE__
,
432 _("free_current_contents: NULL pointer"));
433 if (*location
!= NULL
)
440 /* Provide a known function that does nothing, to use as a base for
441 for a possibly long chain of cleanups. This is useful where we
442 use the cleanup chain for handling normal cleanups as well as dealing
443 with cleanups that need to be done as a result of a call to error().
444 In such cases, we may not be certain where the first cleanup is, unless
445 we have a do-nothing one to always use as the base. */
448 null_cleanup (void *arg
)
452 /* Add a continuation to the continuation list, the global list
453 cmd_continuation. The new continuation will be added at the front.*/
455 add_continuation (void (*continuation_hook
) (struct continuation_arg
*),
456 struct continuation_arg
*arg_list
)
458 struct continuation
*continuation_ptr
;
461 (struct continuation
*) xmalloc (sizeof (struct continuation
));
462 continuation_ptr
->continuation_hook
= continuation_hook
;
463 continuation_ptr
->arg_list
= arg_list
;
464 continuation_ptr
->next
= cmd_continuation
;
465 cmd_continuation
= continuation_ptr
;
468 /* Walk down the cmd_continuation list, and execute all the
469 continuations. There is a problem though. In some cases new
470 continuations may be added while we are in the middle of this
471 loop. If this happens they will be added in the front, and done
472 before we have a chance of exhausting those that were already
473 there. We need to then save the beginning of the list in a pointer
474 and do the continuations from there on, instead of using the
475 global beginning of list as our iteration pointer. */
477 do_all_continuations (void)
479 struct continuation
*continuation_ptr
;
480 struct continuation
*saved_continuation
;
482 /* Copy the list header into another pointer, and set the global
483 list header to null, so that the global list can change as a side
484 effect of invoking the continuations and the processing of
485 the preexisting continuations will not be affected. */
486 continuation_ptr
= cmd_continuation
;
487 cmd_continuation
= NULL
;
489 /* Work now on the list we have set aside. */
490 while (continuation_ptr
)
492 (continuation_ptr
->continuation_hook
) (continuation_ptr
->arg_list
);
493 saved_continuation
= continuation_ptr
;
494 continuation_ptr
= continuation_ptr
->next
;
495 xfree (saved_continuation
);
499 /* Walk down the cmd_continuation list, and get rid of all the
502 discard_all_continuations (void)
504 struct continuation
*continuation_ptr
;
506 while (cmd_continuation
)
508 continuation_ptr
= cmd_continuation
;
509 cmd_continuation
= continuation_ptr
->next
;
510 xfree (continuation_ptr
);
514 /* Add a continuation to the continuation list, the global list
515 intermediate_continuation. The new continuation will be added at
518 add_intermediate_continuation (void (*continuation_hook
)
519 (struct continuation_arg
*),
520 struct continuation_arg
*arg_list
)
522 struct continuation
*continuation_ptr
;
525 (struct continuation
*) xmalloc (sizeof (struct continuation
));
526 continuation_ptr
->continuation_hook
= continuation_hook
;
527 continuation_ptr
->arg_list
= arg_list
;
528 continuation_ptr
->next
= intermediate_continuation
;
529 intermediate_continuation
= continuation_ptr
;
532 /* Walk down the cmd_continuation list, and execute all the
533 continuations. There is a problem though. In some cases new
534 continuations may be added while we are in the middle of this
535 loop. If this happens they will be added in the front, and done
536 before we have a chance of exhausting those that were already
537 there. We need to then save the beginning of the list in a pointer
538 and do the continuations from there on, instead of using the
539 global beginning of list as our iteration pointer.*/
541 do_all_intermediate_continuations (void)
543 struct continuation
*continuation_ptr
;
544 struct continuation
*saved_continuation
;
546 /* Copy the list header into another pointer, and set the global
547 list header to null, so that the global list can change as a side
548 effect of invoking the continuations and the processing of
549 the preexisting continuations will not be affected. */
550 continuation_ptr
= intermediate_continuation
;
551 intermediate_continuation
= NULL
;
553 /* Work now on the list we have set aside. */
554 while (continuation_ptr
)
556 (continuation_ptr
->continuation_hook
) (continuation_ptr
->arg_list
);
557 saved_continuation
= continuation_ptr
;
558 continuation_ptr
= continuation_ptr
->next
;
559 xfree (saved_continuation
);
563 /* Walk down the cmd_continuation list, and get rid of all the
566 discard_all_intermediate_continuations (void)
568 struct continuation
*continuation_ptr
;
570 while (intermediate_continuation
)
572 continuation_ptr
= intermediate_continuation
;
573 intermediate_continuation
= continuation_ptr
->next
;
574 xfree (continuation_ptr
);
580 /* Print a warning message. The first argument STRING is the warning
581 message, used as an fprintf format string, the second is the
582 va_list of arguments for that string. A warning is unfiltered (not
583 paginated) so that the user does not need to page through each
584 screen full of warnings when there are lots of them. */
587 vwarning (const char *string
, va_list args
)
589 if (deprecated_warning_hook
)
590 (*deprecated_warning_hook
) (string
, args
);
593 target_terminal_ours ();
594 wrap_here (""); /* Force out any buffered output */
595 gdb_flush (gdb_stdout
);
596 if (warning_pre_print
)
597 fputs_unfiltered (warning_pre_print
, gdb_stderr
);
598 vfprintf_unfiltered (gdb_stderr
, string
, args
);
599 fprintf_unfiltered (gdb_stderr
, "\n");
604 /* Print a warning message.
605 The first argument STRING is the warning message, used as a fprintf string,
606 and the remaining args are passed as arguments to it.
607 The primary difference between warnings and errors is that a warning
608 does not force the return to command level. */
611 warning (const char *string
, ...)
614 va_start (args
, string
);
615 vwarning (string
, args
);
619 /* Print an error message and return to command level.
620 The first argument STRING is the error message, used as a fprintf string,
621 and the remaining args are passed as arguments to it. */
624 verror (const char *string
, va_list args
)
626 throw_verror (GENERIC_ERROR
, string
, args
);
630 error (const char *string
, ...)
633 va_start (args
, string
);
634 throw_verror (GENERIC_ERROR
, string
, args
);
638 /* Print an error message and quit.
639 The first argument STRING is the error message, used as a fprintf string,
640 and the remaining args are passed as arguments to it. */
643 vfatal (const char *string
, va_list args
)
645 throw_vfatal (string
, args
);
649 fatal (const char *string
, ...)
652 va_start (args
, string
);
653 throw_vfatal (string
, args
);
658 error_stream (struct ui_file
*stream
)
661 char *message
= ui_file_xstrdup (stream
, &len
);
662 make_cleanup (xfree
, message
);
663 error (("%s"), message
);
666 /* Print a message reporting an internal error/warning. Ask the user
667 if they want to continue, dump core, or just exit. Return
668 something to indicate a quit. */
670 struct internal_problem
673 /* FIXME: cagney/2002-08-15: There should be ``maint set/show''
674 commands available for controlling these variables. */
675 enum auto_boolean should_quit
;
676 enum auto_boolean should_dump_core
;
679 /* Report a problem, internal to GDB, to the user. Once the problem
680 has been reported, and assuming GDB didn't quit, the caller can
681 either allow execution to resume or throw an error. */
683 static void ATTR_FORMAT (printf
, 4, 0)
684 internal_vproblem (struct internal_problem
*problem
,
685 const char *file
, int line
, const char *fmt
, va_list ap
)
692 /* Don't allow infinite error/warning recursion. */
694 static char msg
[] = "Recursive internal problem.\n";
702 fputs_unfiltered (msg
, gdb_stderr
);
703 abort (); /* NOTE: GDB has only three calls to abort(). */
706 write (STDERR_FILENO
, msg
, sizeof (msg
));
711 /* Try to get the message out and at the start of a new line. */
712 target_terminal_ours ();
715 /* Create a string containing the full error/warning message. Need
716 to call query with this full string, as otherwize the reason
717 (error/warning) and question become separated. Format using a
718 style similar to a compiler error message. Include extra detail
719 so that the user knows that they are living on the edge. */
722 msg
= xstrvprintf (fmt
, ap
);
723 reason
= xstrprintf ("\
725 A problem internal to GDB has been detected,\n\
726 further debugging may prove unreliable.", file
, line
, problem
->name
, msg
);
728 make_cleanup (xfree
, reason
);
731 switch (problem
->should_quit
)
733 case AUTO_BOOLEAN_AUTO
:
734 /* Default (yes/batch case) is to quit GDB. When in batch mode
735 this lessens the likelhood of GDB going into an infinate
737 quit_p
= query (_("%s\nQuit this debugging session? "), reason
);
739 case AUTO_BOOLEAN_TRUE
:
742 case AUTO_BOOLEAN_FALSE
:
746 internal_error (__FILE__
, __LINE__
, _("bad switch"));
749 switch (problem
->should_dump_core
)
751 case AUTO_BOOLEAN_AUTO
:
752 /* Default (yes/batch case) is to dump core. This leaves a GDB
753 `dropping' so that it is easier to see that something went
755 dump_core_p
= query (_("%s\nCreate a core file of GDB? "), reason
);
758 case AUTO_BOOLEAN_TRUE
:
761 case AUTO_BOOLEAN_FALSE
:
765 internal_error (__FILE__
, __LINE__
, _("bad switch"));
771 abort (); /* NOTE: GDB has only three calls to abort(). */
779 #ifdef HAVE_WORKING_FORK
781 abort (); /* NOTE: GDB has only three calls to abort(). */
789 static struct internal_problem internal_error_problem
= {
790 "internal-error", AUTO_BOOLEAN_AUTO
, AUTO_BOOLEAN_AUTO
794 internal_verror (const char *file
, int line
, const char *fmt
, va_list ap
)
796 internal_vproblem (&internal_error_problem
, file
, line
, fmt
, ap
);
797 deprecated_throw_reason (RETURN_ERROR
);
801 internal_error (const char *file
, int line
, const char *string
, ...)
804 va_start (ap
, string
);
805 internal_verror (file
, line
, string
, ap
);
809 static struct internal_problem internal_warning_problem
= {
810 "internal-warning", AUTO_BOOLEAN_AUTO
, AUTO_BOOLEAN_AUTO
814 internal_vwarning (const char *file
, int line
, const char *fmt
, va_list ap
)
816 internal_vproblem (&internal_warning_problem
, file
, line
, fmt
, ap
);
820 internal_warning (const char *file
, int line
, const char *string
, ...)
823 va_start (ap
, string
);
824 internal_vwarning (file
, line
, string
, ap
);
828 /* Print the system error message for errno, and also mention STRING
829 as the file name for which the error was encountered.
830 Then return to command level. */
833 perror_with_name (const char *string
)
838 err
= safe_strerror (errno
);
839 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
840 strcpy (combined
, string
);
841 strcat (combined
, ": ");
842 strcat (combined
, err
);
844 /* I understand setting these is a matter of taste. Still, some people
845 may clear errno but not know about bfd_error. Doing this here is not
847 bfd_set_error (bfd_error_no_error
);
850 error (_("%s."), combined
);
853 /* Print the system error message for ERRCODE, and also mention STRING
854 as the file name for which the error was encountered. */
857 print_sys_errmsg (const char *string
, int errcode
)
862 err
= safe_strerror (errcode
);
863 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
864 strcpy (combined
, string
);
865 strcat (combined
, ": ");
866 strcat (combined
, err
);
868 /* We want anything which was printed on stdout to come out first, before
870 gdb_flush (gdb_stdout
);
871 fprintf_unfiltered (gdb_stderr
, "%s.\n", combined
);
874 /* Control C eventually causes this to be called, at a convenient time. */
880 /* No steenking SIGINT will ever be coming our way when the
881 program is resumed. Don't lie. */
885 /* If there is no terminal switching for this target, then we can't
886 possibly get screwed by the lack of job control. */
887 || current_target
.to_terminal_ours
== NULL
)
890 fatal ("Quit (expect signal SIGINT when the program is resumed)");
895 /* Called when a memory allocation fails, with the number of bytes of
896 memory requested in SIZE. */
903 internal_error (__FILE__
, __LINE__
,
904 _("virtual memory exhausted: can't allocate %ld bytes."),
909 internal_error (__FILE__
, __LINE__
, _("virtual memory exhausted."));
913 /* The xmalloc() (libiberty.h) family of memory management routines.
915 These are like the ISO-C malloc() family except that they implement
916 consistent semantics and guard against typical memory management
919 /* NOTE: These are declared using PTR to ensure consistency with
920 "libiberty.h". xfree() is GDB local. */
923 xmalloc (size_t size
)
927 /* See libiberty/xmalloc.c. This function need's to match that's
928 semantics. It never returns NULL. */
932 val
= malloc (size
); /* OK: malloc */
940 xzalloc (size_t size
)
942 return xcalloc (1, size
);
946 xrealloc (PTR ptr
, size_t size
) /* OK: PTR */
950 /* See libiberty/xmalloc.c. This function need's to match that's
951 semantics. It never returns NULL. */
956 val
= realloc (ptr
, size
); /* OK: realloc */
958 val
= malloc (size
); /* OK: malloc */
966 xcalloc (size_t number
, size_t size
)
970 /* See libiberty/xmalloc.c. This function need's to match that's
971 semantics. It never returns NULL. */
972 if (number
== 0 || size
== 0)
978 mem
= calloc (number
, size
); /* OK: xcalloc */
980 nomem (number
* size
);
989 free (ptr
); /* OK: free */
993 /* Like asprintf/vasprintf but get an internal_error if the call
997 xstrprintf (const char *format
, ...)
1001 va_start (args
, format
);
1002 ret
= xstrvprintf (format
, args
);
1008 xasprintf (char **ret
, const char *format
, ...)
1011 va_start (args
, format
);
1012 (*ret
) = xstrvprintf (format
, args
);
1017 xvasprintf (char **ret
, const char *format
, va_list ap
)
1019 (*ret
) = xstrvprintf (format
, ap
);
1023 xstrvprintf (const char *format
, va_list ap
)
1026 int status
= vasprintf (&ret
, format
, ap
);
1027 /* NULL is returned when there was a memory allocation problem, or
1028 any other error (for instance, a bad format string). A negative
1029 status (the printed length) with a non-NULL buffer should never
1030 happen, but just to be sure. */
1031 if (ret
== NULL
|| status
< 0)
1032 internal_error (__FILE__
, __LINE__
, _("vasprintf call failed"));
1037 xsnprintf (char *str
, size_t size
, const char *format
, ...)
1042 va_start (args
, format
);
1043 ret
= vsnprintf (str
, size
, format
, args
);
1044 gdb_assert (ret
< size
);
1050 /* My replacement for the read system call.
1051 Used like `read' but keeps going if `read' returns too soon. */
1054 myread (int desc
, char *addr
, int len
)
1061 val
= read (desc
, addr
, len
);
1065 return orglen
- len
;
1072 /* Make a copy of the string at PTR with SIZE characters
1073 (and add a null character at the end in the copy).
1074 Uses malloc to get the space. Returns the address of the copy. */
1077 savestring (const char *ptr
, size_t size
)
1079 char *p
= (char *) xmalloc (size
+ 1);
1080 memcpy (p
, ptr
, size
);
1086 print_spaces (int n
, struct ui_file
*file
)
1088 fputs_unfiltered (n_spaces (n
), file
);
1091 /* Print a host address. */
1094 gdb_print_host_address (const void *addr
, struct ui_file
*stream
)
1097 /* We could use the %p conversion specifier to fprintf if we had any
1098 way of knowing whether this host supports it. But the following
1099 should work on the Alpha and on 32 bit machines. */
1101 fprintf_filtered (stream
, "0x%lx", (unsigned long) addr
);
1105 /* This function supports the query, nquery, and yquery functions.
1106 Ask user a y-or-n question and return 0 if answer is no, 1 if
1107 answer is yes, or default the answer to the specified default
1108 (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a
1109 default answer, or '\0' for no default.
1110 CTLSTR is the control string and should end in "? ". It should
1111 not say how to answer, because we do that.
1112 ARGS are the arguments passed along with the CTLSTR argument to
1115 static int ATTR_FORMAT (printf
, 1, 0)
1116 defaulted_query (const char *ctlstr
, const char defchar
, va_list args
)
1122 char def_answer
, not_def_answer
;
1123 char *y_string
, *n_string
, *question
;
1125 /* Set up according to which answer is the default. */
1126 if (defchar
== '\0')
1130 not_def_answer
= 'N';
1134 else if (defchar
== 'y')
1138 not_def_answer
= 'N';
1146 not_def_answer
= 'Y';
1151 /* Automatically answer the default value if the user did not want
1156 /* If input isn't coming from the user directly, just say what
1157 question we're asking, and then answer "yes" automatically. This
1158 way, important error messages don't get lost when talking to GDB
1160 if (! input_from_terminal_p ())
1163 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1165 printf_filtered (_("(%s or %s) [answered %c; input not from terminal]\n"),
1166 y_string
, n_string
, def_answer
);
1167 gdb_flush (gdb_stdout
);
1172 /* Automatically answer the default value if input is not from the user
1173 directly, or if the user did not want prompts. */
1174 if (!input_from_terminal_p () || !caution
)
1177 if (deprecated_query_hook
)
1179 return deprecated_query_hook (ctlstr
, args
);
1182 /* Format the question outside of the loop, to avoid reusing args. */
1183 question
= xstrvprintf (ctlstr
, args
);
1187 wrap_here (""); /* Flush any buffered output */
1188 gdb_flush (gdb_stdout
);
1190 if (annotation_level
> 1)
1191 printf_filtered (("\n\032\032pre-query\n"));
1193 fputs_filtered (question
, gdb_stdout
);
1194 printf_filtered (_("(%s or %s) "), y_string
, n_string
);
1196 if (annotation_level
> 1)
1197 printf_filtered (("\n\032\032query\n"));
1200 gdb_flush (gdb_stdout
);
1202 answer
= fgetc (stdin
);
1203 clearerr (stdin
); /* in case of C-d */
1204 if (answer
== EOF
) /* C-d */
1206 printf_filtered ("EOF [assumed %c]\n", def_answer
);
1210 /* Eat rest of input line, to EOF or newline */
1214 ans2
= fgetc (stdin
);
1217 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1221 /* Check answer. For the non-default, the user must specify
1222 the non-default explicitly. */
1223 if (answer
== not_def_answer
)
1225 retval
= !def_value
;
1228 /* Otherwise, if a default was specified, the user may either
1229 specify the required input or have it default by entering
1231 if (answer
== def_answer
1232 || (defchar
!= '\0' &&
1233 (answer
== '\n' || answer
== '\r' || answer
== EOF
)))
1238 /* Invalid entries are not defaulted and require another selection. */
1239 printf_filtered (_("Please answer %s or %s.\n"),
1240 y_string
, n_string
);
1244 if (annotation_level
> 1)
1245 printf_filtered (("\n\032\032post-query\n"));
1250 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1251 answer is yes, or 0 if answer is defaulted.
1252 Takes three args which are given to printf to print the question.
1253 The first, a control string, should end in "? ".
1254 It should not say how to answer, because we do that. */
1257 nquery (const char *ctlstr
, ...)
1261 va_start (args
, ctlstr
);
1262 return defaulted_query (ctlstr
, 'n', args
);
1266 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1267 answer is yes, or 1 if answer is defaulted.
1268 Takes three args which are given to printf to print the question.
1269 The first, a control string, should end in "? ".
1270 It should not say how to answer, because we do that. */
1273 yquery (const char *ctlstr
, ...)
1277 va_start (args
, ctlstr
);
1278 return defaulted_query (ctlstr
, 'y', args
);
1282 /* Ask user a y-or-n question and return 1 iff answer is yes.
1283 Takes three args which are given to printf to print the question.
1284 The first, a control string, should end in "? ".
1285 It should not say how to answer, because we do that. */
1288 query (const char *ctlstr
, ...)
1292 va_start (args
, ctlstr
);
1293 return defaulted_query (ctlstr
, '\0', args
);
1297 /* Print an error message saying that we couldn't make sense of a
1298 \^mumble sequence in a string or character constant. START and END
1299 indicate a substring of some larger string that contains the
1300 erroneous backslash sequence, missing the initial backslash. */
1302 no_control_char_error (const char *start
, const char *end
)
1304 int len
= end
- start
;
1305 char *copy
= alloca (end
- start
+ 1);
1307 memcpy (copy
, start
, len
);
1310 error (_("There is no control character `\\%s' in the `%s' character set."),
1311 copy
, target_charset ());
1314 /* Parse a C escape sequence. STRING_PTR points to a variable
1315 containing a pointer to the string to parse. That pointer
1316 should point to the character after the \. That pointer
1317 is updated past the characters we use. The value of the
1318 escape sequence is returned.
1320 A negative value means the sequence \ newline was seen,
1321 which is supposed to be equivalent to nothing at all.
1323 If \ is followed by a null character, we return a negative
1324 value and leave the string pointer pointing at the null character.
1326 If \ is followed by 000, we return 0 and leave the string pointer
1327 after the zeros. A value of 0 does not mean end of string. */
1330 parse_escape (char **string_ptr
)
1333 int c
= *(*string_ptr
)++;
1334 if (c_parse_backslash (c
, &target_char
))
1346 /* Remember where this escape sequence started, for reporting
1348 char *sequence_start_pos
= *string_ptr
- 1;
1350 c
= *(*string_ptr
)++;
1354 /* XXXCHARSET: What is `delete' in the host character set? */
1357 if (!host_char_to_target (c
, &target_char
))
1358 error (_("There is no character corresponding to `Delete' "
1359 "in the target character set `%s'."), host_charset ());
1364 target_char
= parse_escape (string_ptr
);
1367 if (!host_char_to_target (c
, &target_char
))
1368 no_control_char_error (sequence_start_pos
, *string_ptr
);
1371 /* Now target_char is something like `c', and we want to find
1372 its control-character equivalent. */
1373 if (!target_char_to_control_char (target_char
, &target_char
))
1374 no_control_char_error (sequence_start_pos
, *string_ptr
);
1379 /* XXXCHARSET: we need to use isdigit and value-of-digit
1380 methods of the host character set here. */
1396 if (c
>= '0' && c
<= '7')
1410 if (!host_char_to_target (c
, &target_char
))
1412 ("The escape sequence `\%c' is equivalent to plain `%c', which"
1413 " has no equivalent\n" "in the `%s' character set.", c
, c
,
1419 /* Print the character C on STREAM as part of the contents of a literal
1420 string whose delimiter is QUOTER. Note that this routine should only
1421 be call for printing things which are independent of the language
1422 of the program being debugged. */
1425 printchar (int c
, void (*do_fputs
) (const char *, struct ui_file
*),
1426 void (*do_fprintf
) (struct ui_file
*, const char *, ...)
1427 ATTRIBUTE_FPTR_PRINTF_2
, struct ui_file
*stream
, int quoter
)
1430 c
&= 0xFF; /* Avoid sign bit follies */
1432 if (c
< 0x20 || /* Low control chars */
1433 (c
>= 0x7F && c
< 0xA0) || /* DEL, High controls */
1434 (sevenbit_strings
&& c
>= 0x80))
1435 { /* high order bit set */
1439 do_fputs ("\\n", stream
);
1442 do_fputs ("\\b", stream
);
1445 do_fputs ("\\t", stream
);
1448 do_fputs ("\\f", stream
);
1451 do_fputs ("\\r", stream
);
1454 do_fputs ("\\e", stream
);
1457 do_fputs ("\\a", stream
);
1460 do_fprintf (stream
, "\\%.3o", (unsigned int) c
);
1466 if (c
== '\\' || c
== quoter
)
1467 do_fputs ("\\", stream
);
1468 do_fprintf (stream
, "%c", c
);
1472 /* Print the character C on STREAM as part of the contents of a
1473 literal string whose delimiter is QUOTER. Note that these routines
1474 should only be call for printing things which are independent of
1475 the language of the program being debugged. */
1478 fputstr_filtered (const char *str
, int quoter
, struct ui_file
*stream
)
1481 printchar (*str
++, fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1485 fputstr_unfiltered (const char *str
, int quoter
, struct ui_file
*stream
)
1488 printchar (*str
++, fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1492 fputstrn_filtered (const char *str
, int n
, int quoter
,
1493 struct ui_file
*stream
)
1496 for (i
= 0; i
< n
; i
++)
1497 printchar (str
[i
], fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1501 fputstrn_unfiltered (const char *str
, int n
, int quoter
,
1502 struct ui_file
*stream
)
1505 for (i
= 0; i
< n
; i
++)
1506 printchar (str
[i
], fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1510 /* Number of lines per page or UINT_MAX if paging is disabled. */
1511 static unsigned int lines_per_page
;
1513 show_lines_per_page (struct ui_file
*file
, int from_tty
,
1514 struct cmd_list_element
*c
, const char *value
)
1516 fprintf_filtered (file
, _("\
1517 Number of lines gdb thinks are in a page is %s.\n"),
1521 /* Number of chars per line or UINT_MAX if line folding is disabled. */
1522 static unsigned int chars_per_line
;
1524 show_chars_per_line (struct ui_file
*file
, int from_tty
,
1525 struct cmd_list_element
*c
, const char *value
)
1527 fprintf_filtered (file
, _("\
1528 Number of characters gdb thinks are in a line is %s.\n"),
1532 /* Current count of lines printed on this page, chars on this line. */
1533 static unsigned int lines_printed
, chars_printed
;
1535 /* Buffer and start column of buffered text, for doing smarter word-
1536 wrapping. When someone calls wrap_here(), we start buffering output
1537 that comes through fputs_filtered(). If we see a newline, we just
1538 spit it out and forget about the wrap_here(). If we see another
1539 wrap_here(), we spit it out and remember the newer one. If we see
1540 the end of the line, we spit out a newline, the indent, and then
1541 the buffered output. */
1543 /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which
1544 are waiting to be output (they have already been counted in chars_printed).
1545 When wrap_buffer[0] is null, the buffer is empty. */
1546 static char *wrap_buffer
;
1548 /* Pointer in wrap_buffer to the next character to fill. */
1549 static char *wrap_pointer
;
1551 /* String to indent by if the wrap occurs. Must not be NULL if wrap_column
1553 static char *wrap_indent
;
1555 /* Column number on the screen where wrap_buffer begins, or 0 if wrapping
1556 is not in effect. */
1557 static int wrap_column
;
1560 /* Inialize the number of lines per page and chars per line. */
1563 init_page_info (void)
1566 if (!tui_get_command_dimension (&chars_per_line
, &lines_per_page
))
1571 #if defined(__GO32__)
1572 rows
= ScreenRows ();
1573 cols
= ScreenCols ();
1574 lines_per_page
= rows
;
1575 chars_per_line
= cols
;
1577 /* Make sure Readline has initialized its terminal settings. */
1578 rl_reset_terminal (NULL
);
1580 /* Get the screen size from Readline. */
1581 rl_get_screen_size (&rows
, &cols
);
1582 lines_per_page
= rows
;
1583 chars_per_line
= cols
;
1585 /* Readline should have fetched the termcap entry for us. */
1586 if (tgetnum ("li") < 0 || getenv ("EMACS"))
1588 /* The number of lines per page is not mentioned in the
1589 terminal description. This probably means that paging is
1590 not useful (e.g. emacs shell window), so disable paging. */
1591 lines_per_page
= UINT_MAX
;
1594 /* FIXME: Get rid of this junk. */
1595 #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
1596 SIGWINCH_HANDLER (SIGWINCH
);
1599 /* If the output is not a terminal, don't paginate it. */
1600 if (!ui_file_isatty (gdb_stdout
))
1601 lines_per_page
= UINT_MAX
;
1609 /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */
1612 set_screen_size (void)
1614 int rows
= lines_per_page
;
1615 int cols
= chars_per_line
;
1623 /* Update Readline's idea of the terminal size. */
1624 rl_set_screen_size (rows
, cols
);
1627 /* Reinitialize WRAP_BUFFER according to the current value of
1633 if (chars_per_line
== 0)
1638 wrap_buffer
= (char *) xmalloc (chars_per_line
+ 2);
1639 wrap_buffer
[0] = '\0';
1642 wrap_buffer
= (char *) xrealloc (wrap_buffer
, chars_per_line
+ 2);
1643 wrap_pointer
= wrap_buffer
; /* Start it at the beginning. */
1647 set_width_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1654 set_height_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1659 /* Wait, so the user can read what's on the screen. Prompt the user
1660 to continue by pressing RETURN. */
1663 prompt_for_continue (void)
1666 char cont_prompt
[120];
1668 if (annotation_level
> 1)
1669 printf_unfiltered (("\n\032\032pre-prompt-for-continue\n"));
1671 strcpy (cont_prompt
,
1672 "---Type <return> to continue, or q <return> to quit---");
1673 if (annotation_level
> 1)
1674 strcat (cont_prompt
, "\n\032\032prompt-for-continue\n");
1676 /* We must do this *before* we call gdb_readline, else it will eventually
1677 call us -- thinking that we're trying to print beyond the end of the
1679 reinitialize_more_filter ();
1682 /* On a real operating system, the user can quit with SIGINT.
1685 'q' is provided on all systems so users don't have to change habits
1686 from system to system, and because telling them what to do in
1687 the prompt is more user-friendly than expecting them to think of
1689 /* Call readline, not gdb_readline, because GO32 readline handles control-C
1690 whereas control-C to gdb_readline will cause the user to get dumped
1692 ignore
= gdb_readline_wrapper (cont_prompt
);
1694 if (annotation_level
> 1)
1695 printf_unfiltered (("\n\032\032post-prompt-for-continue\n"));
1700 while (*p
== ' ' || *p
== '\t')
1703 async_request_quit (0);
1708 /* Now we have to do this again, so that GDB will know that it doesn't
1709 need to save the ---Type <return>--- line at the top of the screen. */
1710 reinitialize_more_filter ();
1712 dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */
1715 /* Reinitialize filter; ie. tell it to reset to original values. */
1718 reinitialize_more_filter (void)
1724 /* Indicate that if the next sequence of characters overflows the line,
1725 a newline should be inserted here rather than when it hits the end.
1726 If INDENT is non-null, it is a string to be printed to indent the
1727 wrapped part on the next line. INDENT must remain accessible until
1728 the next call to wrap_here() or until a newline is printed through
1731 If the line is already overfull, we immediately print a newline and
1732 the indentation, and disable further wrapping.
1734 If we don't know the width of lines, but we know the page height,
1735 we must not wrap words, but should still keep track of newlines
1736 that were explicitly printed.
1738 INDENT should not contain tabs, as that will mess up the char count
1739 on the next line. FIXME.
1741 This routine is guaranteed to force out any output which has been
1742 squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be
1743 used to force out output from the wrap_buffer. */
1746 wrap_here (char *indent
)
1748 /* This should have been allocated, but be paranoid anyway. */
1750 internal_error (__FILE__
, __LINE__
, _("failed internal consistency check"));
1754 *wrap_pointer
= '\0';
1755 fputs_unfiltered (wrap_buffer
, gdb_stdout
);
1757 wrap_pointer
= wrap_buffer
;
1758 wrap_buffer
[0] = '\0';
1759 if (chars_per_line
== UINT_MAX
) /* No line overflow checking */
1763 else if (chars_printed
>= chars_per_line
)
1765 puts_filtered ("\n");
1767 puts_filtered (indent
);
1772 wrap_column
= chars_printed
;
1776 wrap_indent
= indent
;
1780 /* Print input string to gdb_stdout, filtered, with wrap,
1781 arranging strings in columns of n chars. String can be
1782 right or left justified in the column. Never prints
1783 trailing spaces. String should never be longer than
1784 width. FIXME: this could be useful for the EXAMINE
1785 command, which currently doesn't tabulate very well */
1788 puts_filtered_tabular (char *string
, int width
, int right
)
1794 gdb_assert (chars_per_line
> 0);
1795 if (chars_per_line
== UINT_MAX
)
1797 fputs_filtered (string
, gdb_stdout
);
1798 fputs_filtered ("\n", gdb_stdout
);
1802 if (((chars_printed
- 1) / width
+ 2) * width
>= chars_per_line
)
1803 fputs_filtered ("\n", gdb_stdout
);
1805 if (width
>= chars_per_line
)
1806 width
= chars_per_line
- 1;
1808 stringlen
= strlen (string
);
1810 if (chars_printed
> 0)
1811 spaces
= width
- (chars_printed
- 1) % width
- 1;
1813 spaces
+= width
- stringlen
;
1815 spacebuf
= alloca (spaces
+ 1);
1816 spacebuf
[spaces
] = '\0';
1818 spacebuf
[spaces
] = ' ';
1820 fputs_filtered (spacebuf
, gdb_stdout
);
1821 fputs_filtered (string
, gdb_stdout
);
1825 /* Ensure that whatever gets printed next, using the filtered output
1826 commands, starts at the beginning of the line. I.E. if there is
1827 any pending output for the current line, flush it and start a new
1828 line. Otherwise do nothing. */
1833 if (chars_printed
> 0)
1835 puts_filtered ("\n");
1840 /* Like fputs but if FILTER is true, pause after every screenful.
1842 Regardless of FILTER can wrap at points other than the final
1843 character of a line.
1845 Unlike fputs, fputs_maybe_filtered does not return a value.
1846 It is OK for LINEBUFFER to be NULL, in which case just don't print
1849 Note that a longjmp to top level may occur in this routine (only if
1850 FILTER is true) (since prompt_for_continue may do so) so this
1851 routine should not be called when cleanups are not in place. */
1854 fputs_maybe_filtered (const char *linebuffer
, struct ui_file
*stream
,
1857 const char *lineptr
;
1859 if (linebuffer
== 0)
1862 /* Don't do any filtering if it is disabled. */
1863 if ((stream
!= gdb_stdout
) || !pagination_enabled
1864 || (lines_per_page
== UINT_MAX
&& chars_per_line
== UINT_MAX
))
1866 fputs_unfiltered (linebuffer
, stream
);
1870 /* Go through and output each character. Show line extension
1871 when this is necessary; prompt user for new page when this is
1874 lineptr
= linebuffer
;
1877 /* Possible new page. */
1878 if (filter
&& (lines_printed
>= lines_per_page
- 1))
1879 prompt_for_continue ();
1881 while (*lineptr
&& *lineptr
!= '\n')
1883 /* Print a single line. */
1884 if (*lineptr
== '\t')
1887 *wrap_pointer
++ = '\t';
1889 fputc_unfiltered ('\t', stream
);
1890 /* Shifting right by 3 produces the number of tab stops
1891 we have already passed, and then adding one and
1892 shifting left 3 advances to the next tab stop. */
1893 chars_printed
= ((chars_printed
>> 3) + 1) << 3;
1899 *wrap_pointer
++ = *lineptr
;
1901 fputc_unfiltered (*lineptr
, stream
);
1906 if (chars_printed
>= chars_per_line
)
1908 unsigned int save_chars
= chars_printed
;
1912 /* If we aren't actually wrapping, don't output newline --
1913 if chars_per_line is right, we probably just overflowed
1914 anyway; if it's wrong, let us keep going. */
1916 fputc_unfiltered ('\n', stream
);
1918 /* Possible new page. */
1919 if (lines_printed
>= lines_per_page
- 1)
1920 prompt_for_continue ();
1922 /* Now output indentation and wrapped string */
1925 fputs_unfiltered (wrap_indent
, stream
);
1926 *wrap_pointer
= '\0'; /* Null-terminate saved stuff */
1927 fputs_unfiltered (wrap_buffer
, stream
); /* and eject it */
1928 /* FIXME, this strlen is what prevents wrap_indent from
1929 containing tabs. However, if we recurse to print it
1930 and count its chars, we risk trouble if wrap_indent is
1931 longer than (the user settable) chars_per_line.
1932 Note also that this can set chars_printed > chars_per_line
1933 if we are printing a long string. */
1934 chars_printed
= strlen (wrap_indent
)
1935 + (save_chars
- wrap_column
);
1936 wrap_pointer
= wrap_buffer
; /* Reset buffer */
1937 wrap_buffer
[0] = '\0';
1938 wrap_column
= 0; /* And disable fancy wrap */
1943 if (*lineptr
== '\n')
1946 wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */
1948 fputc_unfiltered ('\n', stream
);
1955 fputs_filtered (const char *linebuffer
, struct ui_file
*stream
)
1957 fputs_maybe_filtered (linebuffer
, stream
, 1);
1961 putchar_unfiltered (int c
)
1964 ui_file_write (gdb_stdout
, &buf
, 1);
1968 /* Write character C to gdb_stdout using GDB's paging mechanism and return C.
1969 May return nonlocally. */
1972 putchar_filtered (int c
)
1974 return fputc_filtered (c
, gdb_stdout
);
1978 fputc_unfiltered (int c
, struct ui_file
*stream
)
1981 ui_file_write (stream
, &buf
, 1);
1986 fputc_filtered (int c
, struct ui_file
*stream
)
1992 fputs_filtered (buf
, stream
);
1996 /* puts_debug is like fputs_unfiltered, except it prints special
1997 characters in printable fashion. */
2000 puts_debug (char *prefix
, char *string
, char *suffix
)
2004 /* Print prefix and suffix after each line. */
2005 static int new_line
= 1;
2006 static int return_p
= 0;
2007 static char *prev_prefix
= "";
2008 static char *prev_suffix
= "";
2010 if (*string
== '\n')
2013 /* If the prefix is changing, print the previous suffix, a new line,
2014 and the new prefix. */
2015 if ((return_p
|| (strcmp (prev_prefix
, prefix
) != 0)) && !new_line
)
2017 fputs_unfiltered (prev_suffix
, gdb_stdlog
);
2018 fputs_unfiltered ("\n", gdb_stdlog
);
2019 fputs_unfiltered (prefix
, gdb_stdlog
);
2022 /* Print prefix if we printed a newline during the previous call. */
2026 fputs_unfiltered (prefix
, gdb_stdlog
);
2029 prev_prefix
= prefix
;
2030 prev_suffix
= suffix
;
2032 /* Output characters in a printable format. */
2033 while ((ch
= *string
++) != '\0')
2039 fputc_unfiltered (ch
, gdb_stdlog
);
2042 fprintf_unfiltered (gdb_stdlog
, "\\x%02x", ch
& 0xff);
2046 fputs_unfiltered ("\\\\", gdb_stdlog
);
2049 fputs_unfiltered ("\\b", gdb_stdlog
);
2052 fputs_unfiltered ("\\f", gdb_stdlog
);
2056 fputs_unfiltered ("\\n", gdb_stdlog
);
2059 fputs_unfiltered ("\\r", gdb_stdlog
);
2062 fputs_unfiltered ("\\t", gdb_stdlog
);
2065 fputs_unfiltered ("\\v", gdb_stdlog
);
2069 return_p
= ch
== '\r';
2072 /* Print suffix if we printed a newline. */
2075 fputs_unfiltered (suffix
, gdb_stdlog
);
2076 fputs_unfiltered ("\n", gdb_stdlog
);
2081 /* Print a variable number of ARGS using format FORMAT. If this
2082 information is going to put the amount written (since the last call
2083 to REINITIALIZE_MORE_FILTER or the last page break) over the page size,
2084 call prompt_for_continue to get the users permision to continue.
2086 Unlike fprintf, this function does not return a value.
2088 We implement three variants, vfprintf (takes a vararg list and stream),
2089 fprintf (takes a stream to write on), and printf (the usual).
2091 Note also that a longjmp to top level may occur in this routine
2092 (since prompt_for_continue may do so) so this routine should not be
2093 called when cleanups are not in place. */
2096 vfprintf_maybe_filtered (struct ui_file
*stream
, const char *format
,
2097 va_list args
, int filter
)
2100 struct cleanup
*old_cleanups
;
2102 linebuffer
= xstrvprintf (format
, args
);
2103 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2104 fputs_maybe_filtered (linebuffer
, stream
, filter
);
2105 do_cleanups (old_cleanups
);
2110 vfprintf_filtered (struct ui_file
*stream
, const char *format
, va_list args
)
2112 vfprintf_maybe_filtered (stream
, format
, args
, 1);
2116 vfprintf_unfiltered (struct ui_file
*stream
, const char *format
, va_list args
)
2119 struct cleanup
*old_cleanups
;
2121 linebuffer
= xstrvprintf (format
, args
);
2122 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2123 fputs_unfiltered (linebuffer
, stream
);
2124 do_cleanups (old_cleanups
);
2128 vprintf_filtered (const char *format
, va_list args
)
2130 vfprintf_maybe_filtered (gdb_stdout
, format
, args
, 1);
2134 vprintf_unfiltered (const char *format
, va_list args
)
2136 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2140 fprintf_filtered (struct ui_file
*stream
, const char *format
, ...)
2143 va_start (args
, format
);
2144 vfprintf_filtered (stream
, format
, args
);
2149 fprintf_unfiltered (struct ui_file
*stream
, const char *format
, ...)
2152 va_start (args
, format
);
2153 vfprintf_unfiltered (stream
, format
, args
);
2157 /* Like fprintf_filtered, but prints its result indented.
2158 Called as fprintfi_filtered (spaces, stream, format, ...); */
2161 fprintfi_filtered (int spaces
, struct ui_file
*stream
, const char *format
,
2165 va_start (args
, format
);
2166 print_spaces_filtered (spaces
, stream
);
2168 vfprintf_filtered (stream
, format
, args
);
2174 printf_filtered (const char *format
, ...)
2177 va_start (args
, format
);
2178 vfprintf_filtered (gdb_stdout
, format
, args
);
2184 printf_unfiltered (const char *format
, ...)
2187 va_start (args
, format
);
2188 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2192 /* Like printf_filtered, but prints it's result indented.
2193 Called as printfi_filtered (spaces, format, ...); */
2196 printfi_filtered (int spaces
, const char *format
, ...)
2199 va_start (args
, format
);
2200 print_spaces_filtered (spaces
, gdb_stdout
);
2201 vfprintf_filtered (gdb_stdout
, format
, args
);
2205 /* Easy -- but watch out!
2207 This routine is *not* a replacement for puts()! puts() appends a newline.
2208 This one doesn't, and had better not! */
2211 puts_filtered (const char *string
)
2213 fputs_filtered (string
, gdb_stdout
);
2217 puts_unfiltered (const char *string
)
2219 fputs_unfiltered (string
, gdb_stdout
);
2222 /* Return a pointer to N spaces and a null. The pointer is good
2223 until the next call to here. */
2228 static char *spaces
= 0;
2229 static int max_spaces
= -1;
2235 spaces
= (char *) xmalloc (n
+ 1);
2236 for (t
= spaces
+ n
; t
!= spaces
;)
2242 return spaces
+ max_spaces
- n
;
2245 /* Print N spaces. */
2247 print_spaces_filtered (int n
, struct ui_file
*stream
)
2249 fputs_filtered (n_spaces (n
), stream
);
2252 /* C++/ObjC demangler stuff. */
2254 /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language
2255 LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
2256 If the name is not mangled, or the language for the name is unknown, or
2257 demangling is off, the name is printed in its "raw" form. */
2260 fprintf_symbol_filtered (struct ui_file
*stream
, char *name
,
2261 enum language lang
, int arg_mode
)
2267 /* If user wants to see raw output, no problem. */
2270 fputs_filtered (name
, stream
);
2274 demangled
= language_demangle (language_def (lang
), name
, arg_mode
);
2275 fputs_filtered (demangled
? demangled
: name
, stream
);
2276 if (demangled
!= NULL
)
2284 /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any
2285 differences in whitespace. Returns 0 if they match, non-zero if they
2286 don't (slightly different than strcmp()'s range of return values).
2288 As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO".
2289 This "feature" is useful when searching for matching C++ function names
2290 (such as if the user types 'break FOO', where FOO is a mangled C++
2294 strcmp_iw (const char *string1
, const char *string2
)
2296 while ((*string1
!= '\0') && (*string2
!= '\0'))
2298 while (isspace (*string1
))
2302 while (isspace (*string2
))
2306 if (*string1
!= *string2
)
2310 if (*string1
!= '\0')
2316 return (*string1
!= '\0' && *string1
!= '(') || (*string2
!= '\0');
2319 /* This is like strcmp except that it ignores whitespace and treats
2320 '(' as the first non-NULL character in terms of ordering. Like
2321 strcmp (and unlike strcmp_iw), it returns negative if STRING1 <
2322 STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2
2323 according to that ordering.
2325 If a list is sorted according to this function and if you want to
2326 find names in the list that match some fixed NAME according to
2327 strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
2328 where this function would put NAME.
2330 Here are some examples of why using strcmp to sort is a bad idea:
2334 Say your partial symtab contains: "foo<char *>", "goo". Then, if
2335 we try to do a search for "foo<char*>", strcmp will locate this
2336 after "foo<char *>" and before "goo". Then lookup_partial_symbol
2337 will start looking at strings beginning with "goo", and will never
2338 see the correct match of "foo<char *>".
2340 Parenthesis example:
2342 In practice, this is less like to be an issue, but I'll give it a
2343 shot. Let's assume that '$' is a legitimate character to occur in
2344 symbols. (Which may well even be the case on some systems.) Then
2345 say that the partial symbol table contains "foo$" and "foo(int)".
2346 strcmp will put them in this order, since '$' < '('. Now, if the
2347 user searches for "foo", then strcmp will sort "foo" before "foo$".
2348 Then lookup_partial_symbol will notice that strcmp_iw("foo$",
2349 "foo") is false, so it won't proceed to the actual match of
2350 "foo(int)" with "foo". */
2353 strcmp_iw_ordered (const char *string1
, const char *string2
)
2355 while ((*string1
!= '\0') && (*string2
!= '\0'))
2357 while (isspace (*string1
))
2361 while (isspace (*string2
))
2365 if (*string1
!= *string2
)
2369 if (*string1
!= '\0')
2378 /* Characters are non-equal unless they're both '\0'; we want to
2379 make sure we get the comparison right according to our
2380 comparison in the cases where one of them is '\0' or '('. */
2382 if (*string2
== '\0')
2387 if (*string2
== '\0')
2392 if (*string2
== '(')
2395 return *string1
- *string2
;
2399 /* A simple comparison function with opposite semantics to strcmp. */
2402 streq (const char *lhs
, const char *rhs
)
2404 return !strcmp (lhs
, rhs
);
2410 ** Answer whether string_to_compare is a full or partial match to
2411 ** template_string. The partial match must be in sequence starting
2415 subset_compare (char *string_to_compare
, char *template_string
)
2418 if (template_string
!= (char *) NULL
&& string_to_compare
!= (char *) NULL
2419 && strlen (string_to_compare
) <= strlen (template_string
))
2422 (template_string
, string_to_compare
, strlen (string_to_compare
)) == 0);
2429 pagination_on_command (char *arg
, int from_tty
)
2431 pagination_enabled
= 1;
2435 pagination_off_command (char *arg
, int from_tty
)
2437 pagination_enabled
= 0;
2442 initialize_utils (void)
2444 struct cmd_list_element
*c
;
2446 add_setshow_uinteger_cmd ("width", class_support
, &chars_per_line
, _("\
2447 Set number of characters gdb thinks are in a line."), _("\
2448 Show number of characters gdb thinks are in a line."), NULL
,
2450 show_chars_per_line
,
2451 &setlist
, &showlist
);
2453 add_setshow_uinteger_cmd ("height", class_support
, &lines_per_page
, _("\
2454 Set number of lines gdb thinks are in a page."), _("\
2455 Show number of lines gdb thinks are in a page."), NULL
,
2457 show_lines_per_page
,
2458 &setlist
, &showlist
);
2462 add_setshow_boolean_cmd ("demangle", class_support
, &demangle
, _("\
2463 Set demangling of encoded C++/ObjC names when displaying symbols."), _("\
2464 Show demangling of encoded C++/ObjC names when displaying symbols."), NULL
,
2467 &setprintlist
, &showprintlist
);
2469 add_setshow_boolean_cmd ("pagination", class_support
,
2470 &pagination_enabled
, _("\
2471 Set state of pagination."), _("\
2472 Show state of pagination."), NULL
,
2474 show_pagination_enabled
,
2475 &setlist
, &showlist
);
2479 add_com ("am", class_support
, pagination_on_command
,
2480 _("Enable pagination"));
2481 add_com ("sm", class_support
, pagination_off_command
,
2482 _("Disable pagination"));
2485 add_setshow_boolean_cmd ("sevenbit-strings", class_support
,
2486 &sevenbit_strings
, _("\
2487 Set printing of 8-bit characters in strings as \\nnn."), _("\
2488 Show printing of 8-bit characters in strings as \\nnn."), NULL
,
2490 show_sevenbit_strings
,
2491 &setprintlist
, &showprintlist
);
2493 add_setshow_boolean_cmd ("asm-demangle", class_support
, &asm_demangle
, _("\
2494 Set demangling of C++/ObjC names in disassembly listings."), _("\
2495 Show demangling of C++/ObjC names in disassembly listings."), NULL
,
2498 &setprintlist
, &showprintlist
);
2501 /* Machine specific function to handle SIGWINCH signal. */
2503 #ifdef SIGWINCH_HANDLER_BODY
2504 SIGWINCH_HANDLER_BODY
2506 /* print routines to handle variable size regs, etc. */
2507 /* temporary storage using circular buffer */
2513 static char buf
[NUMCELLS
][CELLSIZE
];
2514 static int cell
= 0;
2515 if (++cell
>= NUMCELLS
)
2523 return (gdbarch_addr_bit (current_gdbarch
) / 8 * 2);
2527 paddr (CORE_ADDR addr
)
2529 return phex (addr
, gdbarch_addr_bit (current_gdbarch
) / 8);
2533 paddr_nz (CORE_ADDR addr
)
2535 return phex_nz (addr
, gdbarch_addr_bit (current_gdbarch
) / 8);
2539 paddress (CORE_ADDR addr
)
2541 /* Truncate address to the size of a target address, avoiding shifts
2542 larger or equal than the width of a CORE_ADDR. The local
2543 variable ADDR_BIT stops the compiler reporting a shift overflow
2544 when it won't occur. */
2545 /* NOTE: This assumes that the significant address information is
2546 kept in the least significant bits of ADDR - the upper bits were
2547 either zero or sign extended. Should gdbarch_address_to_pointer or
2548 some ADDRESS_TO_PRINTABLE() be used to do the conversion? */
2550 int addr_bit
= gdbarch_addr_bit (current_gdbarch
);
2552 if (addr_bit
< (sizeof (CORE_ADDR
) * HOST_CHAR_BIT
))
2553 addr
&= ((CORE_ADDR
) 1 << addr_bit
) - 1;
2554 return hex_string (addr
);
2558 decimal2str (char *sign
, ULONGEST addr
, int width
)
2560 /* Steal code from valprint.c:print_decimal(). Should this worry
2561 about the real size of addr as the above does? */
2562 unsigned long temp
[3];
2563 char *str
= get_cell ();
2568 temp
[i
] = addr
% (1000 * 1000 * 1000);
2569 addr
/= (1000 * 1000 * 1000);
2573 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2582 xsnprintf (str
, CELLSIZE
, "%s%0*lu", sign
, width
, temp
[0]);
2585 xsnprintf (str
, CELLSIZE
, "%s%0*lu%09lu", sign
, width
,
2589 xsnprintf (str
, CELLSIZE
, "%s%0*lu%09lu%09lu", sign
, width
,
2590 temp
[2], temp
[1], temp
[0]);
2593 internal_error (__FILE__
, __LINE__
,
2594 _("failed internal consistency check"));
2601 octal2str (ULONGEST addr
, int width
)
2603 unsigned long temp
[3];
2604 char *str
= get_cell ();
2609 temp
[i
] = addr
% (0100000 * 0100000);
2610 addr
/= (0100000 * 0100000);
2614 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2624 xsnprintf (str
, CELLSIZE
, "%*o", width
, 0);
2626 xsnprintf (str
, CELLSIZE
, "0%0*lo", width
, temp
[0]);
2629 xsnprintf (str
, CELLSIZE
, "0%0*lo%010lo", width
, temp
[1], temp
[0]);
2632 xsnprintf (str
, CELLSIZE
, "0%0*lo%010lo%010lo", width
,
2633 temp
[2], temp
[1], temp
[0]);
2636 internal_error (__FILE__
, __LINE__
,
2637 _("failed internal consistency check"));
2644 paddr_u (CORE_ADDR addr
)
2646 return decimal2str ("", addr
, 0);
2650 paddr_d (LONGEST addr
)
2653 return decimal2str ("-", -addr
, 0);
2655 return decimal2str ("", addr
, 0);
2658 /* Eliminate warning from compiler on 32-bit systems. */
2659 static int thirty_two
= 32;
2662 phex (ULONGEST l
, int sizeof_l
)
2670 xsnprintf (str
, CELLSIZE
, "%08lx%08lx",
2671 (unsigned long) (l
>> thirty_two
),
2672 (unsigned long) (l
& 0xffffffff));
2676 xsnprintf (str
, CELLSIZE
, "%08lx", (unsigned long) l
);
2680 xsnprintf (str
, CELLSIZE
, "%04x", (unsigned short) (l
& 0xffff));
2683 str
= phex (l
, sizeof (l
));
2691 phex_nz (ULONGEST l
, int sizeof_l
)
2699 unsigned long high
= (unsigned long) (l
>> thirty_two
);
2702 xsnprintf (str
, CELLSIZE
, "%lx",
2703 (unsigned long) (l
& 0xffffffff));
2705 xsnprintf (str
, CELLSIZE
, "%lx%08lx", high
,
2706 (unsigned long) (l
& 0xffffffff));
2711 xsnprintf (str
, CELLSIZE
, "%lx", (unsigned long) l
);
2715 xsnprintf (str
, CELLSIZE
, "%x", (unsigned short) (l
& 0xffff));
2718 str
= phex_nz (l
, sizeof (l
));
2725 /* Converts a LONGEST to a C-format hexadecimal literal and stores it
2726 in a static string. Returns a pointer to this string. */
2728 hex_string (LONGEST num
)
2730 char *result
= get_cell ();
2731 xsnprintf (result
, CELLSIZE
, "0x%s", phex_nz (num
, sizeof (num
)));
2735 /* Converts a LONGEST number to a C-format hexadecimal literal and
2736 stores it in a static string. Returns a pointer to this string
2737 that is valid until the next call. The number is padded on the
2738 left with 0s to at least WIDTH characters. */
2740 hex_string_custom (LONGEST num
, int width
)
2742 char *result
= get_cell ();
2743 char *result_end
= result
+ CELLSIZE
- 1;
2744 const char *hex
= phex_nz (num
, sizeof (num
));
2745 int hex_len
= strlen (hex
);
2747 if (hex_len
> width
)
2749 if (width
+ 2 >= CELLSIZE
)
2750 internal_error (__FILE__
, __LINE__
,
2751 _("hex_string_custom: insufficient space to store result"));
2753 strcpy (result_end
- width
- 2, "0x");
2754 memset (result_end
- width
, '0', width
);
2755 strcpy (result_end
- hex_len
, hex
);
2756 return result_end
- width
- 2;
2759 /* Convert VAL to a numeral in the given radix. For
2760 * radix 10, IS_SIGNED may be true, indicating a signed quantity;
2761 * otherwise VAL is interpreted as unsigned. If WIDTH is supplied,
2762 * it is the minimum width (0-padded if needed). USE_C_FORMAT means
2763 * to use C format in all cases. If it is false, then 'x'
2764 * and 'o' formats do not include a prefix (0x or leading 0). */
2767 int_string (LONGEST val
, int radix
, int is_signed
, int width
,
2776 result
= hex_string (val
);
2778 result
= hex_string_custom (val
, width
);
2785 if (is_signed
&& val
< 0)
2786 return decimal2str ("-", -val
, width
);
2788 return decimal2str ("", val
, width
);
2792 char *result
= octal2str (val
, width
);
2793 if (use_c_format
|| val
== 0)
2799 internal_error (__FILE__
, __LINE__
,
2800 _("failed internal consistency check"));
2804 /* Convert a CORE_ADDR into a string. */
2806 core_addr_to_string (const CORE_ADDR addr
)
2808 char *str
= get_cell ();
2810 strcat (str
, phex (addr
, sizeof (addr
)));
2815 core_addr_to_string_nz (const CORE_ADDR addr
)
2817 char *str
= get_cell ();
2819 strcat (str
, phex_nz (addr
, sizeof (addr
)));
2823 /* Convert a string back into a CORE_ADDR. */
2825 string_to_core_addr (const char *my_string
)
2828 if (my_string
[0] == '0' && tolower (my_string
[1]) == 'x')
2830 /* Assume that it is in hex. */
2832 for (i
= 2; my_string
[i
] != '\0'; i
++)
2834 if (isdigit (my_string
[i
]))
2835 addr
= (my_string
[i
] - '0') + (addr
* 16);
2836 else if (isxdigit (my_string
[i
]))
2837 addr
= (tolower (my_string
[i
]) - 'a' + 0xa) + (addr
* 16);
2839 error (_("invalid hex \"%s\""), my_string
);
2844 /* Assume that it is in decimal. */
2846 for (i
= 0; my_string
[i
] != '\0'; i
++)
2848 if (isdigit (my_string
[i
]))
2849 addr
= (my_string
[i
] - '0') + (addr
* 10);
2851 error (_("invalid decimal \"%s\""), my_string
);
2858 gdb_realpath (const char *filename
)
2860 /* Method 1: The system has a compile time upper bound on a filename
2861 path. Use that and realpath() to canonicalize the name. This is
2862 the most common case. Note that, if there isn't a compile time
2863 upper bound, you want to avoid realpath() at all costs. */
2864 #if defined(HAVE_REALPATH)
2866 # if defined (PATH_MAX)
2868 # define USE_REALPATH
2869 # elif defined (MAXPATHLEN)
2870 char buf
[MAXPATHLEN
];
2871 # define USE_REALPATH
2873 # if defined (USE_REALPATH)
2874 const char *rp
= realpath (filename
, buf
);
2877 return xstrdup (rp
);
2880 #endif /* HAVE_REALPATH */
2882 /* Method 2: The host system (i.e., GNU) has the function
2883 canonicalize_file_name() which malloc's a chunk of memory and
2884 returns that, use that. */
2885 #if defined(HAVE_CANONICALIZE_FILE_NAME)
2887 char *rp
= canonicalize_file_name (filename
);
2889 return xstrdup (filename
);
2895 /* FIXME: cagney/2002-11-13:
2897 Method 2a: Use realpath() with a NULL buffer. Some systems, due
2898 to the problems described in in method 3, have modified their
2899 realpath() implementation so that it will allocate a buffer when
2900 NULL is passed in. Before this can be used, though, some sort of
2901 configure time test would need to be added. Otherwize the code
2902 will likely core dump. */
2904 /* Method 3: Now we're getting desperate! The system doesn't have a
2905 compile time buffer size and no alternative function. Query the
2906 OS, using pathconf(), for the buffer limit. Care is needed
2907 though, some systems do not limit PATH_MAX (return -1 for
2908 pathconf()) making it impossible to pass a correctly sized buffer
2909 to realpath() (it could always overflow). On those systems, we
2911 #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
2913 /* Find out the max path size. */
2914 long path_max
= pathconf ("/", _PC_PATH_MAX
);
2917 /* PATH_MAX is bounded. */
2918 char *buf
= alloca (path_max
);
2919 char *rp
= realpath (filename
, buf
);
2920 return xstrdup (rp
? rp
: filename
);
2925 /* This system is a lost cause, just dup the buffer. */
2926 return xstrdup (filename
);
2929 /* Return a copy of FILENAME, with its directory prefix canonicalized
2933 xfullpath (const char *filename
)
2935 const char *base_name
= lbasename (filename
);
2940 /* Extract the basename of filename, and return immediately
2941 a copy of filename if it does not contain any directory prefix. */
2942 if (base_name
== filename
)
2943 return xstrdup (filename
);
2945 dir_name
= alloca ((size_t) (base_name
- filename
+ 2));
2946 /* Allocate enough space to store the dir_name + plus one extra
2947 character sometimes needed under Windows (see below), and
2948 then the closing \000 character */
2949 strncpy (dir_name
, filename
, base_name
- filename
);
2950 dir_name
[base_name
- filename
] = '\000';
2952 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2953 /* We need to be careful when filename is of the form 'd:foo', which
2954 is equivalent of d:./foo, which is totally different from d:/foo. */
2955 if (strlen (dir_name
) == 2 && isalpha (dir_name
[0]) && dir_name
[1] == ':')
2958 dir_name
[3] = '\000';
2962 /* Canonicalize the directory prefix, and build the resulting
2963 filename. If the dirname realpath already contains an ending
2964 directory separator, avoid doubling it. */
2965 real_path
= gdb_realpath (dir_name
);
2966 if (IS_DIR_SEPARATOR (real_path
[strlen (real_path
) - 1]))
2967 result
= concat (real_path
, base_name
, (char *)NULL
);
2969 result
= concat (real_path
, SLASH_STRING
, base_name
, (char *)NULL
);
2976 /* This is the 32-bit CRC function used by the GNU separate debug
2977 facility. An executable may contain a section named
2978 .gnu_debuglink, which holds the name of a separate executable file
2979 containing its debug info, and a checksum of that file's contents,
2980 computed using this function. */
2982 gnu_debuglink_crc32 (unsigned long crc
, unsigned char *buf
, size_t len
)
2984 static const unsigned long crc32_table
[256] = {
2985 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
2986 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
2987 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
2988 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
2989 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
2990 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
2991 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
2992 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
2993 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
2994 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
2995 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
2996 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
2997 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
2998 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
2999 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
3000 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
3001 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
3002 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
3003 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
3004 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
3005 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
3006 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
3007 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
3008 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
3009 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
3010 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
3011 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
3012 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
3013 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
3014 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
3015 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
3016 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
3017 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
3018 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
3019 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
3020 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
3021 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
3022 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
3023 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
3024 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
3025 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
3026 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
3027 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
3028 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
3029 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
3030 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
3031 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
3032 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
3033 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
3034 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
3035 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
3040 crc
= ~crc
& 0xffffffff;
3041 for (end
= buf
+ len
; buf
< end
; ++buf
)
3042 crc
= crc32_table
[(crc
^ *buf
) & 0xff] ^ (crc
>> 8);
3043 return ~crc
& 0xffffffff;;
3047 align_up (ULONGEST v
, int n
)
3049 /* Check that N is really a power of two. */
3050 gdb_assert (n
&& (n
& (n
-1)) == 0);
3051 return (v
+ n
- 1) & -n
;
3055 align_down (ULONGEST v
, int n
)
3057 /* Check that N is really a power of two. */
3058 gdb_assert (n
&& (n
& (n
-1)) == 0);
3062 /* Allocation function for the libiberty hash table which uses an
3063 obstack. The obstack is passed as DATA. */
3066 hashtab_obstack_allocate (void *data
, size_t size
, size_t count
)
3068 unsigned int total
= size
* count
;
3069 void *ptr
= obstack_alloc ((struct obstack
*) data
, total
);
3070 memset (ptr
, 0, total
);
3074 /* Trivial deallocation function for the libiberty splay tree and hash
3075 table - don't deallocate anything. Rely on later deletion of the
3076 obstack. DATA will be the obstack, although it is not needed
3080 dummy_obstack_deallocate (void *object
, void *data
)
3085 /* The bit offset of the highest byte in a ULONGEST, for overflow
3088 #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT)
3090 /* True (non-zero) iff DIGIT is a valid digit in radix BASE,
3091 where 2 <= BASE <= 36. */
3094 is_digit_in_base (unsigned char digit
, int base
)
3096 if (!isalnum (digit
))
3099 return (isdigit (digit
) && digit
< base
+ '0');
3101 return (isdigit (digit
) || tolower (digit
) < base
- 10 + 'a');
3105 digit_to_int (unsigned char c
)
3110 return tolower (c
) - 'a' + 10;
3113 /* As for strtoul, but for ULONGEST results. */
3116 strtoulst (const char *num
, const char **trailer
, int base
)
3118 unsigned int high_part
;
3123 /* Skip leading whitespace. */
3124 while (isspace (num
[i
]))
3127 /* Handle prefixes. */
3130 else if (num
[i
] == '-')
3136 if (base
== 0 || base
== 16)
3138 if (num
[i
] == '0' && (num
[i
+ 1] == 'x' || num
[i
+ 1] == 'X'))
3146 if (base
== 0 && num
[i
] == '0')
3152 if (base
< 2 || base
> 36)
3158 result
= high_part
= 0;
3159 for (; is_digit_in_base (num
[i
], base
); i
+= 1)
3161 result
= result
* base
+ digit_to_int (num
[i
]);
3162 high_part
= high_part
* base
+ (unsigned int) (result
>> HIGH_BYTE_POSN
);
3163 result
&= ((ULONGEST
) 1 << HIGH_BYTE_POSN
) - 1;
3164 if (high_part
> 0xff)
3167 result
= ~ (ULONGEST
) 0;
3174 if (trailer
!= NULL
)
3177 result
= result
+ ((ULONGEST
) high_part
<< HIGH_BYTE_POSN
);
3184 /* Simple, portable version of dirname that does not modify its
3188 ldirname (const char *filename
)
3190 const char *base
= lbasename (filename
);
3193 while (base
> filename
&& IS_DIR_SEPARATOR (base
[-1]))
3196 if (base
== filename
)
3199 dirname
= xmalloc (base
- filename
+ 2);
3200 memcpy (dirname
, filename
, base
- filename
);
3202 /* On DOS based file systems, convert "d:foo" to "d:.", so that we
3203 create "d:./bar" later instead of the (different) "d:/bar". */
3204 if (base
- filename
== 2 && IS_ABSOLUTE_PATH (base
)
3205 && !IS_DIR_SEPARATOR (filename
[0]))
3206 dirname
[base
++ - filename
] = '.';
3208 dirname
[base
- filename
] = '\0';