1 /* General utility routines for GDB, the GNU debugger.
3 Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
4 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free
5 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., 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, 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"
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 *,
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
*run_cleanup_chain
; /* cleaned up on each 'run' */
100 static struct cleanup
*exec_cleanup_chain
; /* cleaned up on each execution command */
101 /* cleaned up on each error from within an execution command */
102 static struct cleanup
*exec_error_cleanup_chain
;
104 /* Pointer to what is left to do for an execution command after the
105 target stops. Used only in asynchronous mode, by targets that
106 support async execution. The finish and until commands use it. So
107 does the target extended-remote command. */
108 struct continuation
*cmd_continuation
;
109 struct continuation
*intermediate_continuation
;
111 /* Nonzero if we have job control. */
115 /* Nonzero means a quit has been requested. */
119 /* Nonzero means quit immediately if Control-C is typed now, rather
120 than waiting until QUIT is executed. Be careful in setting this;
121 code which executes with immediate_quit set has to be very careful
122 about being able to deal with being interrupted at any time. It is
123 almost always better to use QUIT; the only exception I can think of
124 is being able to quit out of a system call (using EINTR loses if
125 the SIGINT happens between the previous QUIT and the system call).
126 To immediately quit in the case in which a SIGINT happens between
127 the previous QUIT and setting immediate_quit (desirable anytime we
128 expect to block), call QUIT after setting immediate_quit. */
132 /* Nonzero means that encoded C++/ObjC names should be printed out in their
133 C++/ObjC form rather than raw. */
137 /* Nonzero means that encoded C++/ObjC names should be printed out in their
138 C++/ObjC form even in assembler language displays. If this is set, but
139 DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */
141 int asm_demangle
= 0;
143 /* Nonzero means that strings with character values >0x7F should be printed
144 as octal escapes. Zero means just print the value (e.g. it's an
145 international character, and the terminal or window can cope.) */
147 int sevenbit_strings
= 0;
149 /* String to be printed before error messages, if any. */
151 char *error_pre_print
;
153 /* String to be printed before quit messages, if any. */
155 char *quit_pre_print
;
157 /* String to be printed before warning messages, if any. */
159 char *warning_pre_print
= "\nwarning: ";
161 int pagination_enabled
= 1;
164 /* Add a new cleanup to the cleanup_chain,
165 and return the previous chain pointer
166 to be passed later to do_cleanups or discard_cleanups.
167 Args are FUNCTION to clean up with, and ARG to pass to it. */
170 make_cleanup (make_cleanup_ftype
*function
, void *arg
)
172 return make_my_cleanup (&cleanup_chain
, function
, arg
);
176 make_final_cleanup (make_cleanup_ftype
*function
, void *arg
)
178 return make_my_cleanup (&final_cleanup_chain
, function
, arg
);
182 make_run_cleanup (make_cleanup_ftype
*function
, void *arg
)
184 return make_my_cleanup (&run_cleanup_chain
, function
, arg
);
188 make_exec_cleanup (make_cleanup_ftype
*function
, void *arg
)
190 return make_my_cleanup (&exec_cleanup_chain
, function
, arg
);
194 make_exec_error_cleanup (make_cleanup_ftype
*function
, void *arg
)
196 return make_my_cleanup (&exec_error_cleanup_chain
, function
, arg
);
200 do_freeargv (void *arg
)
202 freeargv ((char **) arg
);
206 make_cleanup_freeargv (char **arg
)
208 return make_my_cleanup (&cleanup_chain
, do_freeargv
, arg
);
212 do_bfd_close_cleanup (void *arg
)
218 make_cleanup_bfd_close (bfd
*abfd
)
220 return make_cleanup (do_bfd_close_cleanup
, abfd
);
224 do_close_cleanup (void *arg
)
232 make_cleanup_close (int fd
)
234 int *saved_fd
= xmalloc (sizeof (fd
));
236 return make_cleanup (do_close_cleanup
, saved_fd
);
240 do_ui_file_delete (void *arg
)
242 ui_file_delete (arg
);
246 make_cleanup_ui_file_delete (struct ui_file
*arg
)
248 return make_my_cleanup (&cleanup_chain
, do_ui_file_delete
, arg
);
252 do_free_section_addr_info (void *arg
)
254 free_section_addr_info (arg
);
258 make_cleanup_free_section_addr_info (struct section_addr_info
*addrs
)
260 return make_my_cleanup (&cleanup_chain
, do_free_section_addr_info
, addrs
);
265 make_my_cleanup (struct cleanup
**pmy_chain
, make_cleanup_ftype
*function
,
269 = (struct cleanup
*) xmalloc (sizeof (struct cleanup
));
270 struct cleanup
*old_chain
= *pmy_chain
;
272 new->next
= *pmy_chain
;
273 new->function
= function
;
280 /* Discard cleanups and do the actions they describe
281 until we get back to the point OLD_CHAIN in the cleanup_chain. */
284 do_cleanups (struct cleanup
*old_chain
)
286 do_my_cleanups (&cleanup_chain
, old_chain
);
290 do_final_cleanups (struct cleanup
*old_chain
)
292 do_my_cleanups (&final_cleanup_chain
, old_chain
);
296 do_run_cleanups (struct cleanup
*old_chain
)
298 do_my_cleanups (&run_cleanup_chain
, old_chain
);
302 do_exec_cleanups (struct cleanup
*old_chain
)
304 do_my_cleanups (&exec_cleanup_chain
, old_chain
);
308 do_exec_error_cleanups (struct cleanup
*old_chain
)
310 do_my_cleanups (&exec_error_cleanup_chain
, old_chain
);
314 do_my_cleanups (struct cleanup
**pmy_chain
,
315 struct cleanup
*old_chain
)
318 while ((ptr
= *pmy_chain
) != old_chain
)
320 *pmy_chain
= ptr
->next
; /* Do this first incase recursion */
321 (*ptr
->function
) (ptr
->arg
);
326 /* Discard cleanups, not doing the actions they describe,
327 until we get back to the point OLD_CHAIN in the cleanup_chain. */
330 discard_cleanups (struct cleanup
*old_chain
)
332 discard_my_cleanups (&cleanup_chain
, old_chain
);
336 discard_final_cleanups (struct cleanup
*old_chain
)
338 discard_my_cleanups (&final_cleanup_chain
, old_chain
);
342 discard_exec_error_cleanups (struct cleanup
*old_chain
)
344 discard_my_cleanups (&exec_error_cleanup_chain
, old_chain
);
348 discard_my_cleanups (struct cleanup
**pmy_chain
,
349 struct cleanup
*old_chain
)
352 while ((ptr
= *pmy_chain
) != old_chain
)
354 *pmy_chain
= ptr
->next
;
359 /* Set the cleanup_chain to 0, and return the old cleanup chain. */
363 return save_my_cleanups (&cleanup_chain
);
367 save_final_cleanups (void)
369 return save_my_cleanups (&final_cleanup_chain
);
373 save_my_cleanups (struct cleanup
**pmy_chain
)
375 struct cleanup
*old_chain
= *pmy_chain
;
381 /* Restore the cleanup chain from a previously saved chain. */
383 restore_cleanups (struct cleanup
*chain
)
385 restore_my_cleanups (&cleanup_chain
, chain
);
389 restore_final_cleanups (struct cleanup
*chain
)
391 restore_my_cleanups (&final_cleanup_chain
, chain
);
395 restore_my_cleanups (struct cleanup
**pmy_chain
, struct cleanup
*chain
)
400 /* This function is useful for cleanups.
404 old_chain = make_cleanup (free_current_contents, &foo);
406 to arrange to free the object thus allocated. */
409 free_current_contents (void *ptr
)
411 void **location
= ptr
;
412 if (location
== NULL
)
413 internal_error (__FILE__
, __LINE__
,
414 "free_current_contents: NULL pointer");
415 if (*location
!= NULL
)
422 /* Provide a known function that does nothing, to use as a base for
423 for a possibly long chain of cleanups. This is useful where we
424 use the cleanup chain for handling normal cleanups as well as dealing
425 with cleanups that need to be done as a result of a call to error().
426 In such cases, we may not be certain where the first cleanup is, unless
427 we have a do-nothing one to always use as the base. */
430 null_cleanup (void *arg
)
434 /* Add a continuation to the continuation list, the global list
435 cmd_continuation. The new continuation will be added at the front.*/
437 add_continuation (void (*continuation_hook
) (struct continuation_arg
*),
438 struct continuation_arg
*arg_list
)
440 struct continuation
*continuation_ptr
;
443 (struct continuation
*) xmalloc (sizeof (struct continuation
));
444 continuation_ptr
->continuation_hook
= continuation_hook
;
445 continuation_ptr
->arg_list
= arg_list
;
446 continuation_ptr
->next
= cmd_continuation
;
447 cmd_continuation
= continuation_ptr
;
450 /* Walk down the cmd_continuation list, and execute all the
451 continuations. There is a problem though. In some cases new
452 continuations may be added while we are in the middle of this
453 loop. If this happens they will be added in the front, and done
454 before we have a chance of exhausting those that were already
455 there. We need to then save the beginning of the list in a pointer
456 and do the continuations from there on, instead of using the
457 global beginning of list as our iteration pointer. */
459 do_all_continuations (void)
461 struct continuation
*continuation_ptr
;
462 struct continuation
*saved_continuation
;
464 /* Copy the list header into another pointer, and set the global
465 list header to null, so that the global list can change as a side
466 effect of invoking the continuations and the processing of
467 the preexisting continuations will not be affected. */
468 continuation_ptr
= cmd_continuation
;
469 cmd_continuation
= NULL
;
471 /* Work now on the list we have set aside. */
472 while (continuation_ptr
)
474 (continuation_ptr
->continuation_hook
) (continuation_ptr
->arg_list
);
475 saved_continuation
= continuation_ptr
;
476 continuation_ptr
= continuation_ptr
->next
;
477 xfree (saved_continuation
);
481 /* Walk down the cmd_continuation list, and get rid of all the
484 discard_all_continuations (void)
486 struct continuation
*continuation_ptr
;
488 while (cmd_continuation
)
490 continuation_ptr
= cmd_continuation
;
491 cmd_continuation
= continuation_ptr
->next
;
492 xfree (continuation_ptr
);
496 /* Add a continuation to the continuation list, the global list
497 intermediate_continuation. The new continuation will be added at
500 add_intermediate_continuation (void (*continuation_hook
)
501 (struct continuation_arg
*),
502 struct continuation_arg
*arg_list
)
504 struct continuation
*continuation_ptr
;
507 (struct continuation
*) xmalloc (sizeof (struct continuation
));
508 continuation_ptr
->continuation_hook
= continuation_hook
;
509 continuation_ptr
->arg_list
= arg_list
;
510 continuation_ptr
->next
= intermediate_continuation
;
511 intermediate_continuation
= continuation_ptr
;
514 /* Walk down the cmd_continuation list, and execute all the
515 continuations. There is a problem though. In some cases new
516 continuations may be added while we are in the middle of this
517 loop. If this happens they will be added in the front, and done
518 before we have a chance of exhausting those that were already
519 there. We need to then save the beginning of the list in a pointer
520 and do the continuations from there on, instead of using the
521 global beginning of list as our iteration pointer.*/
523 do_all_intermediate_continuations (void)
525 struct continuation
*continuation_ptr
;
526 struct continuation
*saved_continuation
;
528 /* Copy the list header into another pointer, and set the global
529 list header to null, so that the global list can change as a side
530 effect of invoking the continuations and the processing of
531 the preexisting continuations will not be affected. */
532 continuation_ptr
= intermediate_continuation
;
533 intermediate_continuation
= NULL
;
535 /* Work now on the list we have set aside. */
536 while (continuation_ptr
)
538 (continuation_ptr
->continuation_hook
) (continuation_ptr
->arg_list
);
539 saved_continuation
= continuation_ptr
;
540 continuation_ptr
= continuation_ptr
->next
;
541 xfree (saved_continuation
);
545 /* Walk down the cmd_continuation list, and get rid of all the
548 discard_all_intermediate_continuations (void)
550 struct continuation
*continuation_ptr
;
552 while (intermediate_continuation
)
554 continuation_ptr
= intermediate_continuation
;
555 intermediate_continuation
= continuation_ptr
->next
;
556 xfree (continuation_ptr
);
562 /* Print a warning message. The first argument STRING is the warning
563 message, used as an fprintf format string, the second is the
564 va_list of arguments for that string. A warning is unfiltered (not
565 paginated) so that the user does not need to page through each
566 screen full of warnings when there are lots of them. */
569 vwarning (const char *string
, va_list args
)
571 if (deprecated_warning_hook
)
572 (*deprecated_warning_hook
) (string
, args
);
575 target_terminal_ours ();
576 wrap_here (""); /* Force out any buffered output */
577 gdb_flush (gdb_stdout
);
578 if (warning_pre_print
)
579 fputs_unfiltered (warning_pre_print
, gdb_stderr
);
580 vfprintf_unfiltered (gdb_stderr
, string
, args
);
581 fprintf_unfiltered (gdb_stderr
, "\n");
586 /* Print a warning message.
587 The first argument STRING is the warning message, used as a fprintf string,
588 and the remaining args are passed as arguments to it.
589 The primary difference between warnings and errors is that a warning
590 does not force the return to command level. */
593 warning (const char *string
, ...)
596 va_start (args
, string
);
597 vwarning (string
, args
);
601 /* Print an error message and return to command level.
602 The first argument STRING is the error message, used as a fprintf string,
603 and the remaining args are passed as arguments to it. */
606 verror (const char *string
, va_list args
)
608 throw_verror (GENERIC_ERROR
, string
, args
);
612 error (const char *string
, ...)
615 va_start (args
, string
);
616 throw_verror (GENERIC_ERROR
, string
, args
);
620 /* Print an error message and quit.
621 The first argument STRING is the error message, used as a fprintf string,
622 and the remaining args are passed as arguments to it. */
625 vfatal (const char *string
, va_list args
)
627 throw_vfatal (string
, args
);
631 fatal (const char *string
, ...)
634 va_start (args
, string
);
635 throw_vfatal (string
, args
);
640 error_stream (struct ui_file
*stream
)
643 char *message
= ui_file_xstrdup (stream
, &len
);
644 make_cleanup (xfree
, message
);
645 error ("%s", message
);
648 /* Print a message reporting an internal error/warning. Ask the user
649 if they want to continue, dump core, or just exit. Return
650 something to indicate a quit. */
652 struct internal_problem
655 /* FIXME: cagney/2002-08-15: There should be ``maint set/show''
656 commands available for controlling these variables. */
657 enum auto_boolean should_quit
;
658 enum auto_boolean should_dump_core
;
661 /* Report a problem, internal to GDB, to the user. Once the problem
662 has been reported, and assuming GDB didn't quit, the caller can
663 either allow execution to resume or throw an error. */
666 internal_vproblem (struct internal_problem
*problem
,
667 const char *file
, int line
, const char *fmt
, va_list ap
)
674 /* Don't allow infinite error/warning recursion. */
676 static char msg
[] = "Recursive internal problem.\n";
684 fputs_unfiltered (msg
, gdb_stderr
);
685 abort (); /* NOTE: GDB has only three calls to abort(). */
688 write (STDERR_FILENO
, msg
, sizeof (msg
));
693 /* Try to get the message out and at the start of a new line. */
694 target_terminal_ours ();
697 /* Create a string containing the full error/warning message. Need
698 to call query with this full string, as otherwize the reason
699 (error/warning) and question become separated. Format using a
700 style similar to a compiler error message. Include extra detail
701 so that the user knows that they are living on the edge. */
704 msg
= xstrvprintf (fmt
, ap
);
705 reason
= xstrprintf ("\
707 A problem internal to GDB has been detected,\n\
708 further debugging may prove unreliable.", file
, line
, problem
->name
, msg
);
710 make_cleanup (xfree
, reason
);
713 switch (problem
->should_quit
)
715 case AUTO_BOOLEAN_AUTO
:
716 /* Default (yes/batch case) is to quit GDB. When in batch mode
717 this lessens the likelhood of GDB going into an infinate
719 quit_p
= query ("%s\nQuit this debugging session? ", reason
);
721 case AUTO_BOOLEAN_TRUE
:
724 case AUTO_BOOLEAN_FALSE
:
728 internal_error (__FILE__
, __LINE__
, "bad switch");
731 switch (problem
->should_dump_core
)
733 case AUTO_BOOLEAN_AUTO
:
734 /* Default (yes/batch case) is to dump core. This leaves a GDB
735 `dropping' so that it is easier to see that something went
737 dump_core_p
= query ("%s\nCreate a core file of GDB? ", reason
);
740 case AUTO_BOOLEAN_TRUE
:
743 case AUTO_BOOLEAN_FALSE
:
747 internal_error (__FILE__
, __LINE__
, "bad switch");
753 abort (); /* NOTE: GDB has only three calls to abort(). */
762 abort (); /* NOTE: GDB has only three calls to abort(). */
769 static struct internal_problem internal_error_problem
= {
770 "internal-error", AUTO_BOOLEAN_AUTO
, AUTO_BOOLEAN_AUTO
774 internal_verror (const char *file
, int line
, const char *fmt
, va_list ap
)
776 internal_vproblem (&internal_error_problem
, file
, line
, fmt
, ap
);
777 deprecated_throw_reason (RETURN_ERROR
);
781 internal_error (const char *file
, int line
, const char *string
, ...)
784 va_start (ap
, string
);
785 internal_verror (file
, line
, string
, ap
);
789 static struct internal_problem internal_warning_problem
= {
790 "internal-warning", AUTO_BOOLEAN_AUTO
, AUTO_BOOLEAN_AUTO
794 internal_vwarning (const char *file
, int line
, const char *fmt
, va_list ap
)
796 internal_vproblem (&internal_warning_problem
, file
, line
, fmt
, ap
);
800 internal_warning (const char *file
, int line
, const char *string
, ...)
803 va_start (ap
, string
);
804 internal_vwarning (file
, line
, string
, ap
);
808 /* The strerror() function can return NULL for errno values that are
809 out of range. Provide a "safe" version that always returns a
813 safe_strerror (int errnum
)
818 msg
= strerror (errnum
);
821 sprintf (buf
, "(undocumented errno %d)", errnum
);
827 /* Print the system error message for errno, and also mention STRING
828 as the file name for which the error was encountered.
829 Then return to command level. */
832 perror_with_name (const char *string
)
837 err
= safe_strerror (errno
);
838 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
839 strcpy (combined
, string
);
840 strcat (combined
, ": ");
841 strcat (combined
, err
);
843 /* I understand setting these is a matter of taste. Still, some people
844 may clear errno but not know about bfd_error. Doing this here is not
846 bfd_set_error (bfd_error_no_error
);
849 error ("%s.", combined
);
852 /* Print the system error message for ERRCODE, and also mention STRING
853 as the file name for which the error was encountered. */
856 print_sys_errmsg (const char *string
, int errcode
)
861 err
= safe_strerror (errcode
);
862 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
863 strcpy (combined
, string
);
864 strcat (combined
, ": ");
865 strcat (combined
, err
);
867 /* We want anything which was printed on stdout to come out first, before
869 gdb_flush (gdb_stdout
);
870 fprintf_unfiltered (gdb_stderr
, "%s.\n", combined
);
873 /* Control C eventually causes this to be called, at a convenient time. */
879 /* No steenking SIGINT will ever be coming our way when the
880 program is resumed. Don't lie. */
884 /* If there is no terminal switching for this target, then we can't
885 possibly get screwed by the lack of job control. */
886 || current_target
.to_terminal_ours
== NULL
)
889 fatal ("Quit (expect signal SIGINT when the program is resumed)");
893 /* Control C comes here */
895 request_quit (int signo
)
898 /* Restore the signal handler. Harmless with BSD-style signals,
899 needed for System V-style signals. */
900 signal (signo
, request_quit
);
906 /* Called when a memory allocation fails, with the number of bytes of
907 memory requested in SIZE. */
914 internal_error (__FILE__
, __LINE__
,
915 "virtual memory exhausted: can't allocate %ld bytes.",
920 internal_error (__FILE__
, __LINE__
, "virtual memory exhausted.");
924 /* The xmalloc() (libiberty.h) family of memory management routines.
926 These are like the ISO-C malloc() family except that they implement
927 consistent semantics and guard against typical memory management
930 /* NOTE: These are declared using PTR to ensure consistency with
931 "libiberty.h". xfree() is GDB local. */
934 xmalloc (size_t size
)
938 /* See libiberty/xmalloc.c. This function need's to match that's
939 semantics. It never returns NULL. */
943 val
= malloc (size
); /* OK: malloc */
951 xrealloc (PTR ptr
, size_t size
) /* OK: PTR */
955 /* See libiberty/xmalloc.c. This function need's to match that's
956 semantics. It never returns NULL. */
961 val
= realloc (ptr
, size
); /* OK: realloc */
963 val
= malloc (size
); /* OK: malloc */
971 xcalloc (size_t number
, size_t size
)
975 /* See libiberty/xmalloc.c. This function need's to match that's
976 semantics. It never returns NULL. */
977 if (number
== 0 || size
== 0)
983 mem
= calloc (number
, size
); /* OK: xcalloc */
985 nomem (number
* size
);
994 free (ptr
); /* OK: free */
998 /* Like asprintf/vasprintf but get an internal_error if the call
1002 xstrprintf (const char *format
, ...)
1006 va_start (args
, format
);
1007 ret
= xstrvprintf (format
, args
);
1013 xasprintf (char **ret
, const char *format
, ...)
1016 va_start (args
, format
);
1017 (*ret
) = xstrvprintf (format
, args
);
1022 xvasprintf (char **ret
, const char *format
, va_list ap
)
1024 (*ret
) = xstrvprintf (format
, ap
);
1028 xstrvprintf (const char *format
, va_list ap
)
1031 int status
= vasprintf (&ret
, format
, ap
);
1032 /* NULL is returned when there was a memory allocation problem. */
1035 /* A negative status (the printed length) with a non-NULL buffer
1036 should never happen, but just to be sure. */
1038 internal_error (__FILE__
, __LINE__
,
1039 "vasprintf call failed (errno %d)", errno
);
1043 /* My replacement for the read system call.
1044 Used like `read' but keeps going if `read' returns too soon. */
1047 myread (int desc
, char *addr
, int len
)
1054 val
= read (desc
, addr
, len
);
1058 return orglen
- len
;
1065 /* Make a copy of the string at PTR with SIZE characters
1066 (and add a null character at the end in the copy).
1067 Uses malloc to get the space. Returns the address of the copy. */
1070 savestring (const char *ptr
, size_t size
)
1072 char *p
= (char *) xmalloc (size
+ 1);
1073 memcpy (p
, ptr
, size
);
1079 print_spaces (int n
, struct ui_file
*file
)
1081 fputs_unfiltered (n_spaces (n
), file
);
1084 /* Print a host address. */
1087 gdb_print_host_address (const void *addr
, struct ui_file
*stream
)
1090 /* We could use the %p conversion specifier to fprintf if we had any
1091 way of knowing whether this host supports it. But the following
1092 should work on the Alpha and on 32 bit machines. */
1094 fprintf_filtered (stream
, "0x%lx", (unsigned long) addr
);
1097 /* Ask user a y-or-n question and return 1 iff answer is yes.
1098 Takes three args which are given to printf to print the question.
1099 The first, a control string, should end in "? ".
1100 It should not say how to answer, because we do that. */
1104 query (const char *ctlstr
, ...)
1111 if (deprecated_query_hook
)
1113 va_start (args
, ctlstr
);
1114 return deprecated_query_hook (ctlstr
, args
);
1117 /* Automatically answer "yes" if input is not from a terminal. */
1118 if (!input_from_terminal_p ())
1123 wrap_here (""); /* Flush any buffered output */
1124 gdb_flush (gdb_stdout
);
1126 if (annotation_level
> 1)
1127 printf_filtered ("\n\032\032pre-query\n");
1129 va_start (args
, ctlstr
);
1130 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1132 printf_filtered ("(y or n) ");
1134 if (annotation_level
> 1)
1135 printf_filtered ("\n\032\032query\n");
1138 gdb_flush (gdb_stdout
);
1140 answer
= fgetc (stdin
);
1141 clearerr (stdin
); /* in case of C-d */
1142 if (answer
== EOF
) /* C-d */
1147 /* Eat rest of input line, to EOF or newline */
1151 ans2
= fgetc (stdin
);
1154 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1168 printf_filtered ("Please answer y or n.\n");
1171 if (annotation_level
> 1)
1172 printf_filtered ("\n\032\032post-query\n");
1177 /* This function supports the nquery() and yquery() functions.
1178 Ask user a y-or-n question and return 0 if answer is no, 1 if
1179 answer is yes, or default the answer to the specified default.
1180 DEFCHAR is either 'y' or 'n' and refers to the default answer.
1181 CTLSTR is the control string and should end in "? ". It should
1182 not say how to answer, because we do that.
1183 ARGS are the arguments passed along with the CTLSTR argument to
1187 defaulted_query (const char *ctlstr
, const char defchar
, va_list args
)
1193 char def_answer
, not_def_answer
;
1194 char *y_string
, *n_string
;
1196 /* Set up according to which answer is the default. */
1201 not_def_answer
= 'N';
1209 not_def_answer
= 'Y';
1214 if (deprecated_query_hook
)
1216 return deprecated_query_hook (ctlstr
, args
);
1219 /* Automatically answer default value if input is not from a terminal. */
1220 if (!input_from_terminal_p ())
1225 wrap_here (""); /* Flush any buffered output */
1226 gdb_flush (gdb_stdout
);
1228 if (annotation_level
> 1)
1229 printf_filtered ("\n\032\032pre-query\n");
1231 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1232 printf_filtered ("(%s or %s) ", y_string
, n_string
);
1234 if (annotation_level
> 1)
1235 printf_filtered ("\n\032\032query\n");
1238 gdb_flush (gdb_stdout
);
1240 answer
= fgetc (stdin
);
1241 clearerr (stdin
); /* in case of C-d */
1242 if (answer
== EOF
) /* C-d */
1247 /* Eat rest of input line, to EOF or newline */
1251 ans2
= fgetc (stdin
);
1254 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1258 /* Check answer. For the non-default, the user must specify
1259 the non-default explicitly. */
1260 if (answer
== not_def_answer
)
1262 retval
= !def_value
;
1265 /* Otherwise, for the default, the user may either specify
1266 the required input or have it default by entering nothing. */
1267 if (answer
== def_answer
|| answer
== '\n' ||
1268 answer
== '\r' || answer
== EOF
)
1273 /* Invalid entries are not defaulted and require another selection. */
1274 printf_filtered ("Please answer %s or %s.\n",
1275 y_string
, n_string
);
1278 if (annotation_level
> 1)
1279 printf_filtered ("\n\032\032post-query\n");
1284 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1285 answer is yes, or 0 if answer is defaulted.
1286 Takes three args which are given to printf to print the question.
1287 The first, a control string, should end in "? ".
1288 It should not say how to answer, because we do that. */
1291 nquery (const char *ctlstr
, ...)
1295 va_start (args
, ctlstr
);
1296 return defaulted_query (ctlstr
, 'n', args
);
1300 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1301 answer is yes, or 1 if answer is defaulted.
1302 Takes three args which are given to printf to print the question.
1303 The first, a control string, should end in "? ".
1304 It should not say how to answer, because we do that. */
1307 yquery (const char *ctlstr
, ...)
1311 va_start (args
, ctlstr
);
1312 return defaulted_query (ctlstr
, 'y', args
);
1316 /* Print an error message saying that we couldn't make sense of a
1317 \^mumble sequence in a string or character constant. START and END
1318 indicate a substring of some larger string that contains the
1319 erroneous backslash sequence, missing the initial backslash. */
1321 no_control_char_error (const char *start
, const char *end
)
1323 int len
= end
- start
;
1324 char *copy
= alloca (end
- start
+ 1);
1326 memcpy (copy
, start
, len
);
1329 error ("There is no control character `\\%s' in the `%s' character set.",
1330 copy
, target_charset ());
1333 /* Parse a C escape sequence. STRING_PTR points to a variable
1334 containing a pointer to the string to parse. That pointer
1335 should point to the character after the \. That pointer
1336 is updated past the characters we use. The value of the
1337 escape sequence is returned.
1339 A negative value means the sequence \ newline was seen,
1340 which is supposed to be equivalent to nothing at all.
1342 If \ is followed by a null character, we return a negative
1343 value and leave the string pointer pointing at the null character.
1345 If \ is followed by 000, we return 0 and leave the string pointer
1346 after the zeros. A value of 0 does not mean end of string. */
1349 parse_escape (char **string_ptr
)
1352 int c
= *(*string_ptr
)++;
1353 if (c_parse_backslash (c
, &target_char
))
1365 /* Remember where this escape sequence started, for reporting
1367 char *sequence_start_pos
= *string_ptr
- 1;
1369 c
= *(*string_ptr
)++;
1373 /* XXXCHARSET: What is `delete' in the host character set? */
1376 if (!host_char_to_target (c
, &target_char
))
1377 error ("There is no character corresponding to `Delete' "
1378 "in the target character set `%s'.", host_charset ());
1383 target_char
= parse_escape (string_ptr
);
1386 if (!host_char_to_target (c
, &target_char
))
1387 no_control_char_error (sequence_start_pos
, *string_ptr
);
1390 /* Now target_char is something like `c', and we want to find
1391 its control-character equivalent. */
1392 if (!target_char_to_control_char (target_char
, &target_char
))
1393 no_control_char_error (sequence_start_pos
, *string_ptr
);
1398 /* XXXCHARSET: we need to use isdigit and value-of-digit
1399 methods of the host character set here. */
1415 if (c
>= '0' && c
<= '7')
1429 if (!host_char_to_target (c
, &target_char
))
1431 ("The escape sequence `\%c' is equivalent to plain `%c', which"
1432 " has no equivalent\n" "in the `%s' character set.", c
, c
,
1438 /* Print the character C on STREAM as part of the contents of a literal
1439 string whose delimiter is QUOTER. Note that this routine should only
1440 be call for printing things which are independent of the language
1441 of the program being debugged. */
1444 printchar (int c
, void (*do_fputs
) (const char *, struct ui_file
*),
1445 void (*do_fprintf
) (struct ui_file
*, const char *, ...),
1446 struct ui_file
*stream
, int quoter
)
1449 c
&= 0xFF; /* Avoid sign bit follies */
1451 if (c
< 0x20 || /* Low control chars */
1452 (c
>= 0x7F && c
< 0xA0) || /* DEL, High controls */
1453 (sevenbit_strings
&& c
>= 0x80))
1454 { /* high order bit set */
1458 do_fputs ("\\n", stream
);
1461 do_fputs ("\\b", stream
);
1464 do_fputs ("\\t", stream
);
1467 do_fputs ("\\f", stream
);
1470 do_fputs ("\\r", stream
);
1473 do_fputs ("\\e", stream
);
1476 do_fputs ("\\a", stream
);
1479 do_fprintf (stream
, "\\%.3o", (unsigned int) c
);
1485 if (c
== '\\' || c
== quoter
)
1486 do_fputs ("\\", stream
);
1487 do_fprintf (stream
, "%c", c
);
1491 /* Print the character C on STREAM as part of the contents of a
1492 literal string whose delimiter is QUOTER. Note that these routines
1493 should only be call for printing things which are independent of
1494 the language of the program being debugged. */
1497 fputstr_filtered (const char *str
, int quoter
, struct ui_file
*stream
)
1500 printchar (*str
++, fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1504 fputstr_unfiltered (const char *str
, int quoter
, struct ui_file
*stream
)
1507 printchar (*str
++, fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1511 fputstrn_unfiltered (const char *str
, int n
, int quoter
,
1512 struct ui_file
*stream
)
1515 for (i
= 0; i
< n
; i
++)
1516 printchar (str
[i
], fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1520 /* Number of lines per page or UINT_MAX if paging is disabled. */
1521 static unsigned int lines_per_page
;
1523 /* Number of chars per line or UINT_MAX if line folding is disabled. */
1524 static unsigned int chars_per_line
;
1526 /* Current count of lines printed on this page, chars on this line. */
1527 static unsigned int lines_printed
, chars_printed
;
1529 /* Buffer and start column of buffered text, for doing smarter word-
1530 wrapping. When someone calls wrap_here(), we start buffering output
1531 that comes through fputs_filtered(). If we see a newline, we just
1532 spit it out and forget about the wrap_here(). If we see another
1533 wrap_here(), we spit it out and remember the newer one. If we see
1534 the end of the line, we spit out a newline, the indent, and then
1535 the buffered output. */
1537 /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which
1538 are waiting to be output (they have already been counted in chars_printed).
1539 When wrap_buffer[0] is null, the buffer is empty. */
1540 static char *wrap_buffer
;
1542 /* Pointer in wrap_buffer to the next character to fill. */
1543 static char *wrap_pointer
;
1545 /* String to indent by if the wrap occurs. Must not be NULL if wrap_column
1547 static char *wrap_indent
;
1549 /* Column number on the screen where wrap_buffer begins, or 0 if wrapping
1550 is not in effect. */
1551 static int wrap_column
;
1554 /* Inialize the number of lines per page and chars per line. */
1557 init_page_info (void)
1560 if (!tui_get_command_dimension (&chars_per_line
, &lines_per_page
))
1565 #if defined(__GO32__)
1566 rows
= ScreenRows ();
1567 cols
= ScreenCols ();
1568 lines_per_page
= rows
;
1569 chars_per_line
= cols
;
1571 /* Make sure Readline has initialized its terminal settings. */
1572 rl_reset_terminal (NULL
);
1574 /* Get the screen size from Readline. */
1575 rl_get_screen_size (&rows
, &cols
);
1576 lines_per_page
= rows
;
1577 chars_per_line
= cols
;
1579 /* Readline should have fetched the termcap entry for us. */
1580 if (tgetnum ("li") < 0 || getenv ("EMACS"))
1582 /* The number of lines per page is not mentioned in the
1583 terminal description. This probably means that paging is
1584 not useful (e.g. emacs shell window), so disable paging. */
1585 lines_per_page
= UINT_MAX
;
1588 /* FIXME: Get rid of this junk. */
1589 #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
1590 SIGWINCH_HANDLER (SIGWINCH
);
1593 /* If the output is not a terminal, don't paginate it. */
1594 if (!ui_file_isatty (gdb_stdout
))
1595 lines_per_page
= UINT_MAX
;
1603 /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */
1606 set_screen_size (void)
1608 int rows
= lines_per_page
;
1609 int cols
= chars_per_line
;
1615 rl_get_screen_size (NULL
, &cols
);
1617 /* Update Readline's idea of the terminal size. */
1618 rl_set_screen_size (rows
, cols
);
1621 /* Reinitialize WRAP_BUFFER according to the current value of
1627 if (chars_per_line
== 0)
1632 wrap_buffer
= (char *) xmalloc (chars_per_line
+ 2);
1633 wrap_buffer
[0] = '\0';
1636 wrap_buffer
= (char *) xrealloc (wrap_buffer
, chars_per_line
+ 2);
1637 wrap_pointer
= wrap_buffer
; /* Start it at the beginning. */
1641 set_width_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1648 set_height_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1653 /* Wait, so the user can read what's on the screen. Prompt the user
1654 to continue by pressing RETURN. */
1657 prompt_for_continue (void)
1660 char cont_prompt
[120];
1662 if (annotation_level
> 1)
1663 printf_unfiltered ("\n\032\032pre-prompt-for-continue\n");
1665 strcpy (cont_prompt
,
1666 "---Type <return> to continue, or q <return> to quit---");
1667 if (annotation_level
> 1)
1668 strcat (cont_prompt
, "\n\032\032prompt-for-continue\n");
1670 /* We must do this *before* we call gdb_readline, else it will eventually
1671 call us -- thinking that we're trying to print beyond the end of the
1673 reinitialize_more_filter ();
1676 /* On a real operating system, the user can quit with SIGINT.
1679 'q' is provided on all systems so users don't have to change habits
1680 from system to system, and because telling them what to do in
1681 the prompt is more user-friendly than expecting them to think of
1683 /* Call readline, not gdb_readline, because GO32 readline handles control-C
1684 whereas control-C to gdb_readline will cause the user to get dumped
1686 ignore
= gdb_readline_wrapper (cont_prompt
);
1688 if (annotation_level
> 1)
1689 printf_unfiltered ("\n\032\032post-prompt-for-continue\n");
1694 while (*p
== ' ' || *p
== '\t')
1697 async_request_quit (0);
1702 /* Now we have to do this again, so that GDB will know that it doesn't
1703 need to save the ---Type <return>--- line at the top of the screen. */
1704 reinitialize_more_filter ();
1706 dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */
1709 /* Reinitialize filter; ie. tell it to reset to original values. */
1712 reinitialize_more_filter (void)
1718 /* Indicate that if the next sequence of characters overflows the line,
1719 a newline should be inserted here rather than when it hits the end.
1720 If INDENT is non-null, it is a string to be printed to indent the
1721 wrapped part on the next line. INDENT must remain accessible until
1722 the next call to wrap_here() or until a newline is printed through
1725 If the line is already overfull, we immediately print a newline and
1726 the indentation, and disable further wrapping.
1728 If we don't know the width of lines, but we know the page height,
1729 we must not wrap words, but should still keep track of newlines
1730 that were explicitly printed.
1732 INDENT should not contain tabs, as that will mess up the char count
1733 on the next line. FIXME.
1735 This routine is guaranteed to force out any output which has been
1736 squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be
1737 used to force out output from the wrap_buffer. */
1740 wrap_here (char *indent
)
1742 /* This should have been allocated, but be paranoid anyway. */
1744 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
1748 *wrap_pointer
= '\0';
1749 fputs_unfiltered (wrap_buffer
, gdb_stdout
);
1751 wrap_pointer
= wrap_buffer
;
1752 wrap_buffer
[0] = '\0';
1753 if (chars_per_line
== UINT_MAX
) /* No line overflow checking */
1757 else if (chars_printed
>= chars_per_line
)
1759 puts_filtered ("\n");
1761 puts_filtered (indent
);
1766 wrap_column
= chars_printed
;
1770 wrap_indent
= indent
;
1774 /* Print input string to gdb_stdout, filtered, with wrap,
1775 arranging strings in columns of n chars. String can be
1776 right or left justified in the column. Never prints
1777 trailing spaces. String should never be longer than
1778 width. FIXME: this could be useful for the EXAMINE
1779 command, which currently doesn't tabulate very well */
1782 puts_filtered_tabular (char *string
, int width
, int right
)
1788 gdb_assert (chars_per_line
> 0);
1789 if (chars_per_line
== UINT_MAX
)
1791 fputs_filtered (string
, gdb_stdout
);
1792 fputs_filtered ("\n", gdb_stdout
);
1796 if (((chars_printed
- 1) / width
+ 2) * width
>= chars_per_line
)
1797 fputs_filtered ("\n", gdb_stdout
);
1799 if (width
>= chars_per_line
)
1800 width
= chars_per_line
- 1;
1802 stringlen
= strlen (string
);
1804 if (chars_printed
> 0)
1805 spaces
= width
- (chars_printed
- 1) % width
- 1;
1807 spaces
+= width
- stringlen
;
1809 spacebuf
= alloca (spaces
+ 1);
1810 spacebuf
[spaces
] = '\0';
1812 spacebuf
[spaces
] = ' ';
1814 fputs_filtered (spacebuf
, gdb_stdout
);
1815 fputs_filtered (string
, gdb_stdout
);
1819 /* Ensure that whatever gets printed next, using the filtered output
1820 commands, starts at the beginning of the line. I.E. if there is
1821 any pending output for the current line, flush it and start a new
1822 line. Otherwise do nothing. */
1827 if (chars_printed
> 0)
1829 puts_filtered ("\n");
1834 /* Like fputs but if FILTER is true, pause after every screenful.
1836 Regardless of FILTER can wrap at points other than the final
1837 character of a line.
1839 Unlike fputs, fputs_maybe_filtered does not return a value.
1840 It is OK for LINEBUFFER to be NULL, in which case just don't print
1843 Note that a longjmp to top level may occur in this routine (only if
1844 FILTER is true) (since prompt_for_continue may do so) so this
1845 routine should not be called when cleanups are not in place. */
1848 fputs_maybe_filtered (const char *linebuffer
, struct ui_file
*stream
,
1851 const char *lineptr
;
1853 if (linebuffer
== 0)
1856 /* Don't do any filtering if it is disabled. */
1857 if ((stream
!= gdb_stdout
) || !pagination_enabled
1858 || (lines_per_page
== UINT_MAX
&& chars_per_line
== UINT_MAX
))
1860 fputs_unfiltered (linebuffer
, stream
);
1864 /* Go through and output each character. Show line extension
1865 when this is necessary; prompt user for new page when this is
1868 lineptr
= linebuffer
;
1871 /* Possible new page. */
1872 if (filter
&& (lines_printed
>= lines_per_page
- 1))
1873 prompt_for_continue ();
1875 while (*lineptr
&& *lineptr
!= '\n')
1877 /* Print a single line. */
1878 if (*lineptr
== '\t')
1881 *wrap_pointer
++ = '\t';
1883 fputc_unfiltered ('\t', stream
);
1884 /* Shifting right by 3 produces the number of tab stops
1885 we have already passed, and then adding one and
1886 shifting left 3 advances to the next tab stop. */
1887 chars_printed
= ((chars_printed
>> 3) + 1) << 3;
1893 *wrap_pointer
++ = *lineptr
;
1895 fputc_unfiltered (*lineptr
, stream
);
1900 if (chars_printed
>= chars_per_line
)
1902 unsigned int save_chars
= chars_printed
;
1906 /* If we aren't actually wrapping, don't output newline --
1907 if chars_per_line is right, we probably just overflowed
1908 anyway; if it's wrong, let us keep going. */
1910 fputc_unfiltered ('\n', stream
);
1912 /* Possible new page. */
1913 if (lines_printed
>= lines_per_page
- 1)
1914 prompt_for_continue ();
1916 /* Now output indentation and wrapped string */
1919 fputs_unfiltered (wrap_indent
, stream
);
1920 *wrap_pointer
= '\0'; /* Null-terminate saved stuff */
1921 fputs_unfiltered (wrap_buffer
, stream
); /* and eject it */
1922 /* FIXME, this strlen is what prevents wrap_indent from
1923 containing tabs. However, if we recurse to print it
1924 and count its chars, we risk trouble if wrap_indent is
1925 longer than (the user settable) chars_per_line.
1926 Note also that this can set chars_printed > chars_per_line
1927 if we are printing a long string. */
1928 chars_printed
= strlen (wrap_indent
)
1929 + (save_chars
- wrap_column
);
1930 wrap_pointer
= wrap_buffer
; /* Reset buffer */
1931 wrap_buffer
[0] = '\0';
1932 wrap_column
= 0; /* And disable fancy wrap */
1937 if (*lineptr
== '\n')
1940 wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */
1942 fputc_unfiltered ('\n', stream
);
1949 fputs_filtered (const char *linebuffer
, struct ui_file
*stream
)
1951 fputs_maybe_filtered (linebuffer
, stream
, 1);
1955 putchar_unfiltered (int c
)
1958 ui_file_write (gdb_stdout
, &buf
, 1);
1962 /* Write character C to gdb_stdout using GDB's paging mechanism and return C.
1963 May return nonlocally. */
1966 putchar_filtered (int c
)
1968 return fputc_filtered (c
, gdb_stdout
);
1972 fputc_unfiltered (int c
, struct ui_file
*stream
)
1975 ui_file_write (stream
, &buf
, 1);
1980 fputc_filtered (int c
, struct ui_file
*stream
)
1986 fputs_filtered (buf
, stream
);
1990 /* puts_debug is like fputs_unfiltered, except it prints special
1991 characters in printable fashion. */
1994 puts_debug (char *prefix
, char *string
, char *suffix
)
1998 /* Print prefix and suffix after each line. */
1999 static int new_line
= 1;
2000 static int return_p
= 0;
2001 static char *prev_prefix
= "";
2002 static char *prev_suffix
= "";
2004 if (*string
== '\n')
2007 /* If the prefix is changing, print the previous suffix, a new line,
2008 and the new prefix. */
2009 if ((return_p
|| (strcmp (prev_prefix
, prefix
) != 0)) && !new_line
)
2011 fputs_unfiltered (prev_suffix
, gdb_stdlog
);
2012 fputs_unfiltered ("\n", gdb_stdlog
);
2013 fputs_unfiltered (prefix
, gdb_stdlog
);
2016 /* Print prefix if we printed a newline during the previous call. */
2020 fputs_unfiltered (prefix
, gdb_stdlog
);
2023 prev_prefix
= prefix
;
2024 prev_suffix
= suffix
;
2026 /* Output characters in a printable format. */
2027 while ((ch
= *string
++) != '\0')
2033 fputc_unfiltered (ch
, gdb_stdlog
);
2036 fprintf_unfiltered (gdb_stdlog
, "\\x%02x", ch
& 0xff);
2040 fputs_unfiltered ("\\\\", gdb_stdlog
);
2043 fputs_unfiltered ("\\b", gdb_stdlog
);
2046 fputs_unfiltered ("\\f", gdb_stdlog
);
2050 fputs_unfiltered ("\\n", gdb_stdlog
);
2053 fputs_unfiltered ("\\r", gdb_stdlog
);
2056 fputs_unfiltered ("\\t", gdb_stdlog
);
2059 fputs_unfiltered ("\\v", gdb_stdlog
);
2063 return_p
= ch
== '\r';
2066 /* Print suffix if we printed a newline. */
2069 fputs_unfiltered (suffix
, gdb_stdlog
);
2070 fputs_unfiltered ("\n", gdb_stdlog
);
2075 /* Print a variable number of ARGS using format FORMAT. If this
2076 information is going to put the amount written (since the last call
2077 to REINITIALIZE_MORE_FILTER or the last page break) over the page size,
2078 call prompt_for_continue to get the users permision to continue.
2080 Unlike fprintf, this function does not return a value.
2082 We implement three variants, vfprintf (takes a vararg list and stream),
2083 fprintf (takes a stream to write on), and printf (the usual).
2085 Note also that a longjmp to top level may occur in this routine
2086 (since prompt_for_continue may do so) so this routine should not be
2087 called when cleanups are not in place. */
2090 vfprintf_maybe_filtered (struct ui_file
*stream
, const char *format
,
2091 va_list args
, int filter
)
2094 struct cleanup
*old_cleanups
;
2096 linebuffer
= xstrvprintf (format
, args
);
2097 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2098 fputs_maybe_filtered (linebuffer
, stream
, filter
);
2099 do_cleanups (old_cleanups
);
2104 vfprintf_filtered (struct ui_file
*stream
, const char *format
, va_list args
)
2106 vfprintf_maybe_filtered (stream
, format
, args
, 1);
2110 vfprintf_unfiltered (struct ui_file
*stream
, const char *format
, va_list args
)
2113 struct cleanup
*old_cleanups
;
2115 linebuffer
= xstrvprintf (format
, args
);
2116 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2117 fputs_unfiltered (linebuffer
, stream
);
2118 do_cleanups (old_cleanups
);
2122 vprintf_filtered (const char *format
, va_list args
)
2124 vfprintf_maybe_filtered (gdb_stdout
, format
, args
, 1);
2128 vprintf_unfiltered (const char *format
, va_list args
)
2130 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2134 fprintf_filtered (struct ui_file
*stream
, const char *format
, ...)
2137 va_start (args
, format
);
2138 vfprintf_filtered (stream
, format
, args
);
2143 fprintf_unfiltered (struct ui_file
*stream
, const char *format
, ...)
2146 va_start (args
, format
);
2147 vfprintf_unfiltered (stream
, format
, args
);
2151 /* Like fprintf_filtered, but prints its result indented.
2152 Called as fprintfi_filtered (spaces, stream, format, ...); */
2155 fprintfi_filtered (int spaces
, struct ui_file
*stream
, const char *format
,
2159 va_start (args
, format
);
2160 print_spaces_filtered (spaces
, stream
);
2162 vfprintf_filtered (stream
, format
, args
);
2168 printf_filtered (const char *format
, ...)
2171 va_start (args
, format
);
2172 vfprintf_filtered (gdb_stdout
, format
, args
);
2178 printf_unfiltered (const char *format
, ...)
2181 va_start (args
, format
);
2182 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2186 /* Like printf_filtered, but prints it's result indented.
2187 Called as printfi_filtered (spaces, format, ...); */
2190 printfi_filtered (int spaces
, const char *format
, ...)
2193 va_start (args
, format
);
2194 print_spaces_filtered (spaces
, gdb_stdout
);
2195 vfprintf_filtered (gdb_stdout
, format
, args
);
2199 /* Easy -- but watch out!
2201 This routine is *not* a replacement for puts()! puts() appends a newline.
2202 This one doesn't, and had better not! */
2205 puts_filtered (const char *string
)
2207 fputs_filtered (string
, gdb_stdout
);
2211 puts_unfiltered (const char *string
)
2213 fputs_unfiltered (string
, gdb_stdout
);
2216 /* Return a pointer to N spaces and a null. The pointer is good
2217 until the next call to here. */
2222 static char *spaces
= 0;
2223 static int max_spaces
= -1;
2229 spaces
= (char *) xmalloc (n
+ 1);
2230 for (t
= spaces
+ n
; t
!= spaces
;)
2236 return spaces
+ max_spaces
- n
;
2239 /* Print N spaces. */
2241 print_spaces_filtered (int n
, struct ui_file
*stream
)
2243 fputs_filtered (n_spaces (n
), stream
);
2246 /* C++/ObjC demangler stuff. */
2248 /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language
2249 LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
2250 If the name is not mangled, or the language for the name is unknown, or
2251 demangling is off, the name is printed in its "raw" form. */
2254 fprintf_symbol_filtered (struct ui_file
*stream
, char *name
,
2255 enum language lang
, int arg_mode
)
2261 /* If user wants to see raw output, no problem. */
2264 fputs_filtered (name
, stream
);
2268 demangled
= language_demangle (language_def (lang
), name
, arg_mode
);
2269 fputs_filtered (demangled
? demangled
: name
, stream
);
2270 if (demangled
!= NULL
)
2278 /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any
2279 differences in whitespace. Returns 0 if they match, non-zero if they
2280 don't (slightly different than strcmp()'s range of return values).
2282 As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO".
2283 This "feature" is useful when searching for matching C++ function names
2284 (such as if the user types 'break FOO', where FOO is a mangled C++
2288 strcmp_iw (const char *string1
, const char *string2
)
2290 while ((*string1
!= '\0') && (*string2
!= '\0'))
2292 while (isspace (*string1
))
2296 while (isspace (*string2
))
2300 if (*string1
!= *string2
)
2304 if (*string1
!= '\0')
2310 return (*string1
!= '\0' && *string1
!= '(') || (*string2
!= '\0');
2313 /* This is like strcmp except that it ignores whitespace and treats
2314 '(' as the first non-NULL character in terms of ordering. Like
2315 strcmp (and unlike strcmp_iw), it returns negative if STRING1 <
2316 STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2
2317 according to that ordering.
2319 If a list is sorted according to this function and if you want to
2320 find names in the list that match some fixed NAME according to
2321 strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
2322 where this function would put NAME.
2324 Here are some examples of why using strcmp to sort is a bad idea:
2328 Say your partial symtab contains: "foo<char *>", "goo". Then, if
2329 we try to do a search for "foo<char*>", strcmp will locate this
2330 after "foo<char *>" and before "goo". Then lookup_partial_symbol
2331 will start looking at strings beginning with "goo", and will never
2332 see the correct match of "foo<char *>".
2334 Parenthesis example:
2336 In practice, this is less like to be an issue, but I'll give it a
2337 shot. Let's assume that '$' is a legitimate character to occur in
2338 symbols. (Which may well even be the case on some systems.) Then
2339 say that the partial symbol table contains "foo$" and "foo(int)".
2340 strcmp will put them in this order, since '$' < '('. Now, if the
2341 user searches for "foo", then strcmp will sort "foo" before "foo$".
2342 Then lookup_partial_symbol will notice that strcmp_iw("foo$",
2343 "foo") is false, so it won't proceed to the actual match of
2344 "foo(int)" with "foo". */
2347 strcmp_iw_ordered (const char *string1
, const char *string2
)
2349 while ((*string1
!= '\0') && (*string2
!= '\0'))
2351 while (isspace (*string1
))
2355 while (isspace (*string2
))
2359 if (*string1
!= *string2
)
2363 if (*string1
!= '\0')
2372 /* Characters are non-equal unless they're both '\0'; we want to
2373 make sure we get the comparison right according to our
2374 comparison in the cases where one of them is '\0' or '('. */
2376 if (*string2
== '\0')
2381 if (*string2
== '\0')
2386 if (*string2
== '(')
2389 return *string1
- *string2
;
2393 /* A simple comparison function with opposite semantics to strcmp. */
2396 streq (const char *lhs
, const char *rhs
)
2398 return !strcmp (lhs
, rhs
);
2404 ** Answer whether string_to_compare is a full or partial match to
2405 ** template_string. The partial match must be in sequence starting
2409 subset_compare (char *string_to_compare
, char *template_string
)
2412 if (template_string
!= (char *) NULL
&& string_to_compare
!= (char *) NULL
2413 && strlen (string_to_compare
) <= strlen (template_string
))
2416 (template_string
, string_to_compare
, strlen (string_to_compare
)) == 0);
2423 static void pagination_on_command (char *arg
, int from_tty
);
2425 pagination_on_command (char *arg
, int from_tty
)
2427 pagination_enabled
= 1;
2430 static void pagination_on_command (char *arg
, int from_tty
);
2432 pagination_off_command (char *arg
, int from_tty
)
2434 pagination_enabled
= 0;
2439 initialize_utils (void)
2441 struct cmd_list_element
*c
;
2443 c
= add_set_cmd ("width", class_support
, var_uinteger
, &chars_per_line
,
2444 "Set number of characters gdb thinks are in a line.",
2446 deprecated_add_show_from_set (c
, &showlist
);
2447 set_cmd_sfunc (c
, set_width_command
);
2449 c
= add_set_cmd ("height", class_support
, var_uinteger
, &lines_per_page
,
2450 "Set number of lines gdb thinks are in a page.", &setlist
);
2451 deprecated_add_show_from_set (c
, &showlist
);
2452 set_cmd_sfunc (c
, set_height_command
);
2456 deprecated_add_show_from_set
2457 (add_set_cmd ("demangle", class_support
, var_boolean
,
2459 "Set demangling of encoded C++/ObjC names when displaying symbols.",
2460 &setprintlist
), &showprintlist
);
2462 deprecated_add_show_from_set
2463 (add_set_cmd ("pagination", class_support
,
2464 var_boolean
, (char *) &pagination_enabled
,
2465 "Set state of pagination.", &setlist
), &showlist
);
2469 add_com ("am", class_support
, pagination_on_command
,
2470 "Enable pagination");
2471 add_com ("sm", class_support
, pagination_off_command
,
2472 "Disable pagination");
2475 deprecated_add_show_from_set
2476 (add_set_cmd ("sevenbit-strings", class_support
, var_boolean
,
2477 (char *) &sevenbit_strings
,
2478 "Set printing of 8-bit characters in strings as \\nnn.",
2479 &setprintlist
), &showprintlist
);
2481 deprecated_add_show_from_set
2482 (add_set_cmd ("asm-demangle", class_support
, var_boolean
,
2483 (char *) &asm_demangle
,
2484 "Set demangling of C++/ObjC names in disassembly listings.",
2485 &setprintlist
), &showprintlist
);
2488 /* Machine specific function to handle SIGWINCH signal. */
2490 #ifdef SIGWINCH_HANDLER_BODY
2491 SIGWINCH_HANDLER_BODY
2493 /* print routines to handle variable size regs, etc. */
2494 /* temporary storage using circular buffer */
2500 static char buf
[NUMCELLS
][CELLSIZE
];
2501 static int cell
= 0;
2502 if (++cell
>= NUMCELLS
)
2510 return (TARGET_ADDR_BIT
/ 8 * 2);
2514 paddr (CORE_ADDR addr
)
2516 return phex (addr
, TARGET_ADDR_BIT
/ 8);
2520 paddr_nz (CORE_ADDR addr
)
2522 return phex_nz (addr
, TARGET_ADDR_BIT
/ 8);
2526 decimal2str (char *paddr_str
, char *sign
, ULONGEST addr
, int width
)
2528 /* steal code from valprint.c:print_decimal(). Should this worry
2529 about the real size of addr as the above does? */
2530 unsigned long temp
[3];
2534 temp
[i
] = addr
% (1000 * 1000 * 1000);
2535 addr
/= (1000 * 1000 * 1000);
2539 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2546 sprintf (paddr_str
, "%s%0*lu", sign
, width
, temp
[0]);
2549 sprintf (paddr_str
, "%s%0*lu%09lu", sign
, width
, temp
[1], temp
[0]);
2552 sprintf (paddr_str
, "%s%0*lu%09lu%09lu", sign
, width
,
2553 temp
[2], temp
[1], temp
[0]);
2556 internal_error (__FILE__
, __LINE__
,
2557 "failed internal consistency check");
2562 octal2str (char *paddr_str
, ULONGEST addr
, int width
)
2564 unsigned long temp
[3];
2568 temp
[i
] = addr
% (0100000 * 0100000);
2569 addr
/= (0100000 * 0100000);
2573 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2581 sprintf (paddr_str
, "%*o", width
, 0);
2583 sprintf (paddr_str
, "0%0*lo", width
, temp
[0]);
2586 sprintf (paddr_str
, "0%0*lo%010lo", width
, temp
[1], temp
[0]);
2589 sprintf (paddr_str
, "0%0*lo%010lo%010lo", width
,
2590 temp
[2], temp
[1], temp
[0]);
2593 internal_error (__FILE__
, __LINE__
,
2594 "failed internal consistency check");
2599 paddr_u (CORE_ADDR addr
)
2601 char *paddr_str
= get_cell ();
2602 decimal2str (paddr_str
, "", addr
, 0);
2607 paddr_d (LONGEST addr
)
2609 char *paddr_str
= get_cell ();
2611 decimal2str (paddr_str
, "-", -addr
, 0);
2613 decimal2str (paddr_str
, "", addr
, 0);
2617 /* eliminate warning from compiler on 32-bit systems */
2618 static int thirty_two
= 32;
2621 phex (ULONGEST l
, int sizeof_l
)
2628 sprintf (str
, "%08lx%08lx",
2629 (unsigned long) (l
>> thirty_two
),
2630 (unsigned long) (l
& 0xffffffff));
2634 sprintf (str
, "%08lx", (unsigned long) l
);
2638 sprintf (str
, "%04x", (unsigned short) (l
& 0xffff));
2641 str
= phex (l
, sizeof (l
));
2648 phex_nz (ULONGEST l
, int sizeof_l
)
2655 unsigned long high
= (unsigned long) (l
>> thirty_two
);
2658 sprintf (str
, "%lx", (unsigned long) (l
& 0xffffffff));
2660 sprintf (str
, "%lx%08lx", high
, (unsigned long) (l
& 0xffffffff));
2665 sprintf (str
, "%lx", (unsigned long) l
);
2669 sprintf (str
, "%x", (unsigned short) (l
& 0xffff));
2672 str
= phex_nz (l
, sizeof (l
));
2678 /* Converts a LONGEST to a C-format hexadecimal literal and stores it
2679 in a static string. Returns a pointer to this string. */
2681 hex_string (LONGEST num
)
2683 char *result
= get_cell ();
2684 snprintf (result
, CELLSIZE
, "0x%s", phex_nz (num
, sizeof (num
)));
2688 /* Converts a LONGEST number to a C-format hexadecimal literal and
2689 stores it in a static string. Returns a pointer to this string
2690 that is valid until the next call. The number is padded on the
2691 left with 0s to at least WIDTH characters. */
2693 hex_string_custom (LONGEST num
, int width
)
2695 char *result
= get_cell ();
2696 char *result_end
= result
+ CELLSIZE
- 1;
2697 const char *hex
= phex_nz (num
, sizeof (num
));
2698 int hex_len
= strlen (hex
);
2700 if (hex_len
> width
)
2702 if (width
+ 2 >= CELLSIZE
)
2703 internal_error (__FILE__
, __LINE__
,
2704 "hex_string_custom: insufficient space to store result");
2706 strcpy (result_end
- width
- 2, "0x");
2707 memset (result_end
- width
, '0', width
);
2708 strcpy (result_end
- hex_len
, hex
);
2709 return result_end
- width
- 2;
2712 /* Convert VAL to a numeral in the given radix. For
2713 * radix 10, IS_SIGNED may be true, indicating a signed quantity;
2714 * otherwise VAL is interpreted as unsigned. If WIDTH is supplied,
2715 * it is the minimum width (0-padded if needed). USE_C_FORMAT means
2716 * to use C format in all cases. If it is false, then 'x'
2717 * and 'o' formats do not include a prefix (0x or leading 0). */
2720 int_string (LONGEST val
, int radix
, int is_signed
, int width
,
2729 result
= hex_string (val
);
2731 result
= hex_string_custom (val
, width
);
2738 char *result
= get_cell ();
2739 if (is_signed
&& val
< 0)
2740 decimal2str (result
, "-", -val
, width
);
2742 decimal2str (result
, "", val
, width
);
2747 char *result
= get_cell ();
2748 octal2str (result
, val
, width
);
2749 if (use_c_format
|| val
== 0)
2755 internal_error (__FILE__
, __LINE__
,
2756 "failed internal consistency check");
2760 /* Convert a CORE_ADDR into a string. */
2762 core_addr_to_string (const CORE_ADDR addr
)
2764 char *str
= get_cell ();
2766 strcat (str
, phex (addr
, sizeof (addr
)));
2771 core_addr_to_string_nz (const CORE_ADDR addr
)
2773 char *str
= get_cell ();
2775 strcat (str
, phex_nz (addr
, sizeof (addr
)));
2779 /* Convert a string back into a CORE_ADDR. */
2781 string_to_core_addr (const char *my_string
)
2784 if (my_string
[0] == '0' && tolower (my_string
[1]) == 'x')
2786 /* Assume that it is in decimal. */
2788 for (i
= 2; my_string
[i
] != '\0'; i
++)
2790 if (isdigit (my_string
[i
]))
2791 addr
= (my_string
[i
] - '0') + (addr
* 16);
2792 else if (isxdigit (my_string
[i
]))
2793 addr
= (tolower (my_string
[i
]) - 'a' + 0xa) + (addr
* 16);
2795 internal_error (__FILE__
, __LINE__
, "invalid hex");
2800 /* Assume that it is in decimal. */
2802 for (i
= 0; my_string
[i
] != '\0'; i
++)
2804 if (isdigit (my_string
[i
]))
2805 addr
= (my_string
[i
] - '0') + (addr
* 10);
2807 internal_error (__FILE__
, __LINE__
, "invalid decimal");
2814 gdb_realpath (const char *filename
)
2816 /* Method 1: The system has a compile time upper bound on a filename
2817 path. Use that and realpath() to canonicalize the name. This is
2818 the most common case. Note that, if there isn't a compile time
2819 upper bound, you want to avoid realpath() at all costs. */
2820 #if defined(HAVE_REALPATH)
2822 # if defined (PATH_MAX)
2824 # define USE_REALPATH
2825 # elif defined (MAXPATHLEN)
2826 char buf
[MAXPATHLEN
];
2827 # define USE_REALPATH
2829 # if defined (USE_REALPATH)
2830 const char *rp
= realpath (filename
, buf
);
2833 return xstrdup (rp
);
2836 #endif /* HAVE_REALPATH */
2838 /* Method 2: The host system (i.e., GNU) has the function
2839 canonicalize_file_name() which malloc's a chunk of memory and
2840 returns that, use that. */
2841 #if defined(HAVE_CANONICALIZE_FILE_NAME)
2843 char *rp
= canonicalize_file_name (filename
);
2845 return xstrdup (filename
);
2851 /* FIXME: cagney/2002-11-13:
2853 Method 2a: Use realpath() with a NULL buffer. Some systems, due
2854 to the problems described in in method 3, have modified their
2855 realpath() implementation so that it will allocate a buffer when
2856 NULL is passed in. Before this can be used, though, some sort of
2857 configure time test would need to be added. Otherwize the code
2858 will likely core dump. */
2860 /* Method 3: Now we're getting desperate! The system doesn't have a
2861 compile time buffer size and no alternative function. Query the
2862 OS, using pathconf(), for the buffer limit. Care is needed
2863 though, some systems do not limit PATH_MAX (return -1 for
2864 pathconf()) making it impossible to pass a correctly sized buffer
2865 to realpath() (it could always overflow). On those systems, we
2867 #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
2869 /* Find out the max path size. */
2870 long path_max
= pathconf ("/", _PC_PATH_MAX
);
2873 /* PATH_MAX is bounded. */
2874 char *buf
= alloca (path_max
);
2875 char *rp
= realpath (filename
, buf
);
2876 return xstrdup (rp
? rp
: filename
);
2881 /* This system is a lost cause, just dup the buffer. */
2882 return xstrdup (filename
);
2885 /* Return a copy of FILENAME, with its directory prefix canonicalized
2889 xfullpath (const char *filename
)
2891 const char *base_name
= lbasename (filename
);
2896 /* Extract the basename of filename, and return immediately
2897 a copy of filename if it does not contain any directory prefix. */
2898 if (base_name
== filename
)
2899 return xstrdup (filename
);
2901 dir_name
= alloca ((size_t) (base_name
- filename
+ 2));
2902 /* Allocate enough space to store the dir_name + plus one extra
2903 character sometimes needed under Windows (see below), and
2904 then the closing \000 character */
2905 strncpy (dir_name
, filename
, base_name
- filename
);
2906 dir_name
[base_name
- filename
] = '\000';
2908 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2909 /* We need to be careful when filename is of the form 'd:foo', which
2910 is equivalent of d:./foo, which is totally different from d:/foo. */
2911 if (strlen (dir_name
) == 2 && isalpha (dir_name
[0]) && dir_name
[1] == ':')
2914 dir_name
[3] = '\000';
2918 /* Canonicalize the directory prefix, and build the resulting
2919 filename. If the dirname realpath already contains an ending
2920 directory separator, avoid doubling it. */
2921 real_path
= gdb_realpath (dir_name
);
2922 if (IS_DIR_SEPARATOR (real_path
[strlen (real_path
) - 1]))
2923 result
= concat (real_path
, base_name
, NULL
);
2925 result
= concat (real_path
, SLASH_STRING
, base_name
, NULL
);
2932 /* This is the 32-bit CRC function used by the GNU separate debug
2933 facility. An executable may contain a section named
2934 .gnu_debuglink, which holds the name of a separate executable file
2935 containing its debug info, and a checksum of that file's contents,
2936 computed using this function. */
2938 gnu_debuglink_crc32 (unsigned long crc
, unsigned char *buf
, size_t len
)
2940 static const unsigned long crc32_table
[256] = {
2941 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
2942 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
2943 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
2944 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
2945 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
2946 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
2947 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
2948 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
2949 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
2950 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
2951 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
2952 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
2953 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
2954 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
2955 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
2956 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
2957 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
2958 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
2959 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
2960 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
2961 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
2962 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
2963 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
2964 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
2965 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
2966 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
2967 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
2968 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
2969 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
2970 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
2971 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
2972 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
2973 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
2974 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
2975 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
2976 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
2977 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
2978 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
2979 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
2980 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
2981 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
2982 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
2983 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
2984 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
2985 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
2986 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
2987 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
2988 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
2989 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
2990 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
2991 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
2996 crc
= ~crc
& 0xffffffff;
2997 for (end
= buf
+ len
; buf
< end
; ++buf
)
2998 crc
= crc32_table
[(crc
^ *buf
) & 0xff] ^ (crc
>> 8);
2999 return ~crc
& 0xffffffff;;
3003 align_up (ULONGEST v
, int n
)
3005 /* Check that N is really a power of two. */
3006 gdb_assert (n
&& (n
& (n
-1)) == 0);
3007 return (v
+ n
- 1) & -n
;
3011 align_down (ULONGEST v
, int n
)
3013 /* Check that N is really a power of two. */
3014 gdb_assert (n
&& (n
& (n
-1)) == 0);