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 xzalloc (size_t size
)
953 return xcalloc (1, size
);
957 xrealloc (PTR ptr
, size_t size
) /* OK: PTR */
961 /* See libiberty/xmalloc.c. This function need's to match that's
962 semantics. It never returns NULL. */
967 val
= realloc (ptr
, size
); /* OK: realloc */
969 val
= malloc (size
); /* OK: malloc */
977 xcalloc (size_t number
, size_t size
)
981 /* See libiberty/xmalloc.c. This function need's to match that's
982 semantics. It never returns NULL. */
983 if (number
== 0 || size
== 0)
989 mem
= calloc (number
, size
); /* OK: xcalloc */
991 nomem (number
* size
);
1000 free (ptr
); /* OK: free */
1004 /* Like asprintf/vasprintf but get an internal_error if the call
1008 xstrprintf (const char *format
, ...)
1012 va_start (args
, format
);
1013 ret
= xstrvprintf (format
, args
);
1019 xasprintf (char **ret
, const char *format
, ...)
1022 va_start (args
, format
);
1023 (*ret
) = xstrvprintf (format
, args
);
1028 xvasprintf (char **ret
, const char *format
, va_list ap
)
1030 (*ret
) = xstrvprintf (format
, ap
);
1034 xstrvprintf (const char *format
, va_list ap
)
1037 int status
= vasprintf (&ret
, format
, ap
);
1038 /* NULL is returned when there was a memory allocation problem. */
1041 /* A negative status (the printed length) with a non-NULL buffer
1042 should never happen, but just to be sure. */
1044 internal_error (__FILE__
, __LINE__
,
1045 _("vasprintf call failed (errno %d)"), errno
);
1049 /* My replacement for the read system call.
1050 Used like `read' but keeps going if `read' returns too soon. */
1053 myread (int desc
, char *addr
, int len
)
1060 val
= read (desc
, addr
, len
);
1064 return orglen
- len
;
1071 /* Make a copy of the string at PTR with SIZE characters
1072 (and add a null character at the end in the copy).
1073 Uses malloc to get the space. Returns the address of the copy. */
1076 savestring (const char *ptr
, size_t size
)
1078 char *p
= (char *) xmalloc (size
+ 1);
1079 memcpy (p
, ptr
, size
);
1085 print_spaces (int n
, struct ui_file
*file
)
1087 fputs_unfiltered (n_spaces (n
), file
);
1090 /* Print a host address. */
1093 gdb_print_host_address (const void *addr
, struct ui_file
*stream
)
1096 /* We could use the %p conversion specifier to fprintf if we had any
1097 way of knowing whether this host supports it. But the following
1098 should work on the Alpha and on 32 bit machines. */
1100 fprintf_filtered (stream
, "0x%lx", (unsigned long) addr
);
1103 /* Ask user a y-or-n question and return 1 iff answer is yes.
1104 Takes three args which are given to printf to print the question.
1105 The first, a control string, should end in "? ".
1106 It should not say how to answer, because we do that. */
1110 query (const char *ctlstr
, ...)
1117 if (deprecated_query_hook
)
1119 va_start (args
, ctlstr
);
1120 return deprecated_query_hook (ctlstr
, args
);
1123 /* Automatically answer "yes" if input is not from a terminal. */
1124 if (!input_from_terminal_p ())
1129 wrap_here (""); /* Flush any buffered output */
1130 gdb_flush (gdb_stdout
);
1132 if (annotation_level
> 1)
1133 printf_filtered (("\n\032\032pre-query\n"));
1135 va_start (args
, ctlstr
);
1136 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1138 printf_filtered (_("(y or n) "));
1140 if (annotation_level
> 1)
1141 printf_filtered (("\n\032\032query\n"));
1144 gdb_flush (gdb_stdout
);
1146 answer
= fgetc (stdin
);
1147 clearerr (stdin
); /* in case of C-d */
1148 if (answer
== EOF
) /* C-d */
1153 /* Eat rest of input line, to EOF or newline */
1157 ans2
= fgetc (stdin
);
1160 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1174 printf_filtered (_("Please answer y or n.\n"));
1177 if (annotation_level
> 1)
1178 printf_filtered (("\n\032\032post-query\n"));
1183 /* This function supports the nquery() and yquery() functions.
1184 Ask user a y-or-n question and return 0 if answer is no, 1 if
1185 answer is yes, or default the answer to the specified default.
1186 DEFCHAR is either 'y' or 'n' and refers to the default answer.
1187 CTLSTR is the control string and should end in "? ". It should
1188 not say how to answer, because we do that.
1189 ARGS are the arguments passed along with the CTLSTR argument to
1193 defaulted_query (const char *ctlstr
, const char defchar
, va_list args
)
1199 char def_answer
, not_def_answer
;
1200 char *y_string
, *n_string
;
1202 /* Set up according to which answer is the default. */
1207 not_def_answer
= 'N';
1215 not_def_answer
= 'Y';
1220 if (deprecated_query_hook
)
1222 return deprecated_query_hook (ctlstr
, args
);
1225 /* Automatically answer default value if input is not from a terminal. */
1226 if (!input_from_terminal_p ())
1231 wrap_here (""); /* Flush any buffered output */
1232 gdb_flush (gdb_stdout
);
1234 if (annotation_level
> 1)
1235 printf_filtered (("\n\032\032pre-query\n"));
1237 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1238 printf_filtered (_("(%s or %s) "), y_string
, n_string
);
1240 if (annotation_level
> 1)
1241 printf_filtered (("\n\032\032query\n"));
1244 gdb_flush (gdb_stdout
);
1246 answer
= fgetc (stdin
);
1247 clearerr (stdin
); /* in case of C-d */
1248 if (answer
== EOF
) /* C-d */
1253 /* Eat rest of input line, to EOF or newline */
1257 ans2
= fgetc (stdin
);
1260 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1264 /* Check answer. For the non-default, the user must specify
1265 the non-default explicitly. */
1266 if (answer
== not_def_answer
)
1268 retval
= !def_value
;
1271 /* Otherwise, for the default, the user may either specify
1272 the required input or have it default by entering nothing. */
1273 if (answer
== def_answer
|| answer
== '\n' ||
1274 answer
== '\r' || answer
== EOF
)
1279 /* Invalid entries are not defaulted and require another selection. */
1280 printf_filtered (_("Please answer %s or %s.\n"),
1281 y_string
, n_string
);
1284 if (annotation_level
> 1)
1285 printf_filtered (("\n\032\032post-query\n"));
1290 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1291 answer is yes, or 0 if answer is defaulted.
1292 Takes three args which are given to printf to print the question.
1293 The first, a control string, should end in "? ".
1294 It should not say how to answer, because we do that. */
1297 nquery (const char *ctlstr
, ...)
1301 va_start (args
, ctlstr
);
1302 return defaulted_query (ctlstr
, 'n', args
);
1306 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1307 answer is yes, or 1 if answer is defaulted.
1308 Takes three args which are given to printf to print the question.
1309 The first, a control string, should end in "? ".
1310 It should not say how to answer, because we do that. */
1313 yquery (const char *ctlstr
, ...)
1317 va_start (args
, ctlstr
);
1318 return defaulted_query (ctlstr
, 'y', args
);
1322 /* Print an error message saying that we couldn't make sense of a
1323 \^mumble sequence in a string or character constant. START and END
1324 indicate a substring of some larger string that contains the
1325 erroneous backslash sequence, missing the initial backslash. */
1327 no_control_char_error (const char *start
, const char *end
)
1329 int len
= end
- start
;
1330 char *copy
= alloca (end
- start
+ 1);
1332 memcpy (copy
, start
, len
);
1335 error (_("There is no control character `\\%s' in the `%s' character set."),
1336 copy
, target_charset ());
1339 /* Parse a C escape sequence. STRING_PTR points to a variable
1340 containing a pointer to the string to parse. That pointer
1341 should point to the character after the \. That pointer
1342 is updated past the characters we use. The value of the
1343 escape sequence is returned.
1345 A negative value means the sequence \ newline was seen,
1346 which is supposed to be equivalent to nothing at all.
1348 If \ is followed by a null character, we return a negative
1349 value and leave the string pointer pointing at the null character.
1351 If \ is followed by 000, we return 0 and leave the string pointer
1352 after the zeros. A value of 0 does not mean end of string. */
1355 parse_escape (char **string_ptr
)
1358 int c
= *(*string_ptr
)++;
1359 if (c_parse_backslash (c
, &target_char
))
1371 /* Remember where this escape sequence started, for reporting
1373 char *sequence_start_pos
= *string_ptr
- 1;
1375 c
= *(*string_ptr
)++;
1379 /* XXXCHARSET: What is `delete' in the host character set? */
1382 if (!host_char_to_target (c
, &target_char
))
1383 error (_("There is no character corresponding to `Delete' "
1384 "in the target character set `%s'."), host_charset ());
1389 target_char
= parse_escape (string_ptr
);
1392 if (!host_char_to_target (c
, &target_char
))
1393 no_control_char_error (sequence_start_pos
, *string_ptr
);
1396 /* Now target_char is something like `c', and we want to find
1397 its control-character equivalent. */
1398 if (!target_char_to_control_char (target_char
, &target_char
))
1399 no_control_char_error (sequence_start_pos
, *string_ptr
);
1404 /* XXXCHARSET: we need to use isdigit and value-of-digit
1405 methods of the host character set here. */
1421 if (c
>= '0' && c
<= '7')
1435 if (!host_char_to_target (c
, &target_char
))
1437 ("The escape sequence `\%c' is equivalent to plain `%c', which"
1438 " has no equivalent\n" "in the `%s' character set.", c
, c
,
1444 /* Print the character C on STREAM as part of the contents of a literal
1445 string whose delimiter is QUOTER. Note that this routine should only
1446 be call for printing things which are independent of the language
1447 of the program being debugged. */
1450 printchar (int c
, void (*do_fputs
) (const char *, struct ui_file
*),
1451 void (*do_fprintf
) (struct ui_file
*, const char *, ...),
1452 struct ui_file
*stream
, int quoter
)
1455 c
&= 0xFF; /* Avoid sign bit follies */
1457 if (c
< 0x20 || /* Low control chars */
1458 (c
>= 0x7F && c
< 0xA0) || /* DEL, High controls */
1459 (sevenbit_strings
&& c
>= 0x80))
1460 { /* high order bit set */
1464 do_fputs ("\\n", stream
);
1467 do_fputs ("\\b", stream
);
1470 do_fputs ("\\t", stream
);
1473 do_fputs ("\\f", stream
);
1476 do_fputs ("\\r", stream
);
1479 do_fputs ("\\e", stream
);
1482 do_fputs ("\\a", stream
);
1485 do_fprintf (stream
, "\\%.3o", (unsigned int) c
);
1491 if (c
== '\\' || c
== quoter
)
1492 do_fputs ("\\", stream
);
1493 do_fprintf (stream
, "%c", c
);
1497 /* Print the character C on STREAM as part of the contents of a
1498 literal string whose delimiter is QUOTER. Note that these routines
1499 should only be call for printing things which are independent of
1500 the language of the program being debugged. */
1503 fputstr_filtered (const char *str
, int quoter
, struct ui_file
*stream
)
1506 printchar (*str
++, fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1510 fputstr_unfiltered (const char *str
, int quoter
, struct ui_file
*stream
)
1513 printchar (*str
++, fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1517 fputstrn_unfiltered (const char *str
, int n
, int quoter
,
1518 struct ui_file
*stream
)
1521 for (i
= 0; i
< n
; i
++)
1522 printchar (str
[i
], fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1526 /* Number of lines per page or UINT_MAX if paging is disabled. */
1527 static unsigned int lines_per_page
;
1529 /* Number of chars per line or UINT_MAX if line folding is disabled. */
1530 static unsigned int chars_per_line
;
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
;
1621 rl_get_screen_size (NULL
, &cols
);
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 static void pagination_on_command (char *arg
, int from_tty
);
2431 pagination_on_command (char *arg
, int from_tty
)
2433 pagination_enabled
= 1;
2436 static void pagination_on_command (char *arg
, int from_tty
);
2438 pagination_off_command (char *arg
, int from_tty
)
2440 pagination_enabled
= 0;
2445 initialize_utils (void)
2447 struct cmd_list_element
*c
;
2449 c
= add_set_cmd ("width", class_support
, var_uinteger
, &chars_per_line
,
2450 "Set number of characters gdb thinks are in a line.",
2452 deprecated_add_show_from_set (c
, &showlist
);
2453 set_cmd_sfunc (c
, set_width_command
);
2455 c
= add_set_cmd ("height", class_support
, var_uinteger
, &lines_per_page
,
2456 "Set number of lines gdb thinks are in a page.", &setlist
);
2457 deprecated_add_show_from_set (c
, &showlist
);
2458 set_cmd_sfunc (c
, set_height_command
);
2462 deprecated_add_show_from_set
2463 (add_set_cmd ("demangle", class_support
, var_boolean
,
2465 "Set demangling of encoded C++/ObjC names when displaying symbols.",
2466 &setprintlist
), &showprintlist
);
2468 deprecated_add_show_from_set
2469 (add_set_cmd ("pagination", class_support
,
2470 var_boolean
, (char *) &pagination_enabled
,
2471 "Set state of pagination.", &setlist
), &showlist
);
2475 add_com ("am", class_support
, pagination_on_command
,
2476 "Enable pagination");
2477 add_com ("sm", class_support
, pagination_off_command
,
2478 "Disable pagination");
2481 deprecated_add_show_from_set
2482 (add_set_cmd ("sevenbit-strings", class_support
, var_boolean
,
2483 (char *) &sevenbit_strings
,
2484 "Set printing of 8-bit characters in strings as \\nnn.",
2485 &setprintlist
), &showprintlist
);
2487 deprecated_add_show_from_set
2488 (add_set_cmd ("asm-demangle", class_support
, var_boolean
,
2489 (char *) &asm_demangle
,
2490 "Set demangling of C++/ObjC names in disassembly listings.",
2491 &setprintlist
), &showprintlist
);
2494 /* Machine specific function to handle SIGWINCH signal. */
2496 #ifdef SIGWINCH_HANDLER_BODY
2497 SIGWINCH_HANDLER_BODY
2499 /* print routines to handle variable size regs, etc. */
2500 /* temporary storage using circular buffer */
2506 static char buf
[NUMCELLS
][CELLSIZE
];
2507 static int cell
= 0;
2508 if (++cell
>= NUMCELLS
)
2516 return (TARGET_ADDR_BIT
/ 8 * 2);
2520 paddr (CORE_ADDR addr
)
2522 return phex (addr
, TARGET_ADDR_BIT
/ 8);
2526 paddr_nz (CORE_ADDR addr
)
2528 return phex_nz (addr
, TARGET_ADDR_BIT
/ 8);
2532 paddress (CORE_ADDR addr
)
2534 /* Truncate address to the size of a target address, avoiding shifts
2535 larger or equal than the width of a CORE_ADDR. The local
2536 variable ADDR_BIT stops the compiler reporting a shift overflow
2537 when it won't occur. */
2538 /* NOTE: This assumes that the significant address information is
2539 kept in the least significant bits of ADDR - the upper bits were
2540 either zero or sign extended. Should ADDRESS_TO_POINTER() or
2541 some ADDRESS_TO_PRINTABLE() be used to do the conversion? */
2543 int addr_bit
= TARGET_ADDR_BIT
;
2545 if (addr_bit
< (sizeof (CORE_ADDR
) * HOST_CHAR_BIT
))
2546 addr
&= ((CORE_ADDR
) 1 << addr_bit
) - 1;
2547 return hex_string (addr
);
2551 decimal2str (char *paddr_str
, char *sign
, ULONGEST addr
, int width
)
2553 /* steal code from valprint.c:print_decimal(). Should this worry
2554 about the real size of addr as the above does? */
2555 unsigned long temp
[3];
2559 temp
[i
] = addr
% (1000 * 1000 * 1000);
2560 addr
/= (1000 * 1000 * 1000);
2564 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2571 sprintf (paddr_str
, "%s%0*lu", sign
, width
, temp
[0]);
2574 sprintf (paddr_str
, "%s%0*lu%09lu", sign
, width
, temp
[1], temp
[0]);
2577 sprintf (paddr_str
, "%s%0*lu%09lu%09lu", sign
, width
,
2578 temp
[2], temp
[1], temp
[0]);
2581 internal_error (__FILE__
, __LINE__
,
2582 _("failed internal consistency check"));
2587 octal2str (char *paddr_str
, ULONGEST addr
, int width
)
2589 unsigned long temp
[3];
2593 temp
[i
] = addr
% (0100000 * 0100000);
2594 addr
/= (0100000 * 0100000);
2598 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2606 sprintf (paddr_str
, "%*o", width
, 0);
2608 sprintf (paddr_str
, "0%0*lo", width
, temp
[0]);
2611 sprintf (paddr_str
, "0%0*lo%010lo", width
, temp
[1], temp
[0]);
2614 sprintf (paddr_str
, "0%0*lo%010lo%010lo", width
,
2615 temp
[2], temp
[1], temp
[0]);
2618 internal_error (__FILE__
, __LINE__
,
2619 _("failed internal consistency check"));
2624 paddr_u (CORE_ADDR addr
)
2626 char *paddr_str
= get_cell ();
2627 decimal2str (paddr_str
, "", addr
, 0);
2632 paddr_d (LONGEST addr
)
2634 char *paddr_str
= get_cell ();
2636 decimal2str (paddr_str
, "-", -addr
, 0);
2638 decimal2str (paddr_str
, "", addr
, 0);
2642 /* eliminate warning from compiler on 32-bit systems */
2643 static int thirty_two
= 32;
2646 phex (ULONGEST l
, int sizeof_l
)
2653 sprintf (str
, "%08lx%08lx",
2654 (unsigned long) (l
>> thirty_two
),
2655 (unsigned long) (l
& 0xffffffff));
2659 sprintf (str
, "%08lx", (unsigned long) l
);
2663 sprintf (str
, "%04x", (unsigned short) (l
& 0xffff));
2666 str
= phex (l
, sizeof (l
));
2673 phex_nz (ULONGEST l
, int sizeof_l
)
2680 unsigned long high
= (unsigned long) (l
>> thirty_two
);
2683 sprintf (str
, "%lx", (unsigned long) (l
& 0xffffffff));
2685 sprintf (str
, "%lx%08lx", high
, (unsigned long) (l
& 0xffffffff));
2690 sprintf (str
, "%lx", (unsigned long) l
);
2694 sprintf (str
, "%x", (unsigned short) (l
& 0xffff));
2697 str
= phex_nz (l
, sizeof (l
));
2703 /* Converts a LONGEST to a C-format hexadecimal literal and stores it
2704 in a static string. Returns a pointer to this string. */
2706 hex_string (LONGEST num
)
2708 char *result
= get_cell ();
2709 snprintf (result
, CELLSIZE
, "0x%s", phex_nz (num
, sizeof (num
)));
2713 /* Converts a LONGEST number to a C-format hexadecimal literal and
2714 stores it in a static string. Returns a pointer to this string
2715 that is valid until the next call. The number is padded on the
2716 left with 0s to at least WIDTH characters. */
2718 hex_string_custom (LONGEST num
, int width
)
2720 char *result
= get_cell ();
2721 char *result_end
= result
+ CELLSIZE
- 1;
2722 const char *hex
= phex_nz (num
, sizeof (num
));
2723 int hex_len
= strlen (hex
);
2725 if (hex_len
> width
)
2727 if (width
+ 2 >= CELLSIZE
)
2728 internal_error (__FILE__
, __LINE__
,
2729 _("hex_string_custom: insufficient space to store result"));
2731 strcpy (result_end
- width
- 2, "0x");
2732 memset (result_end
- width
, '0', width
);
2733 strcpy (result_end
- hex_len
, hex
);
2734 return result_end
- width
- 2;
2737 /* Convert VAL to a numeral in the given radix. For
2738 * radix 10, IS_SIGNED may be true, indicating a signed quantity;
2739 * otherwise VAL is interpreted as unsigned. If WIDTH is supplied,
2740 * it is the minimum width (0-padded if needed). USE_C_FORMAT means
2741 * to use C format in all cases. If it is false, then 'x'
2742 * and 'o' formats do not include a prefix (0x or leading 0). */
2745 int_string (LONGEST val
, int radix
, int is_signed
, int width
,
2754 result
= hex_string (val
);
2756 result
= hex_string_custom (val
, width
);
2763 char *result
= get_cell ();
2764 if (is_signed
&& val
< 0)
2765 decimal2str (result
, "-", -val
, width
);
2767 decimal2str (result
, "", val
, width
);
2772 char *result
= get_cell ();
2773 octal2str (result
, val
, width
);
2774 if (use_c_format
|| val
== 0)
2780 internal_error (__FILE__
, __LINE__
,
2781 _("failed internal consistency check"));
2785 /* Convert a CORE_ADDR into a string. */
2787 core_addr_to_string (const CORE_ADDR addr
)
2789 char *str
= get_cell ();
2791 strcat (str
, phex (addr
, sizeof (addr
)));
2796 core_addr_to_string_nz (const CORE_ADDR addr
)
2798 char *str
= get_cell ();
2800 strcat (str
, phex_nz (addr
, sizeof (addr
)));
2804 /* Convert a string back into a CORE_ADDR. */
2806 string_to_core_addr (const char *my_string
)
2809 if (my_string
[0] == '0' && tolower (my_string
[1]) == 'x')
2811 /* Assume that it is in decimal. */
2813 for (i
= 2; my_string
[i
] != '\0'; i
++)
2815 if (isdigit (my_string
[i
]))
2816 addr
= (my_string
[i
] - '0') + (addr
* 16);
2817 else if (isxdigit (my_string
[i
]))
2818 addr
= (tolower (my_string
[i
]) - 'a' + 0xa) + (addr
* 16);
2820 internal_error (__FILE__
, __LINE__
, _("invalid hex"));
2825 /* Assume that it is in decimal. */
2827 for (i
= 0; my_string
[i
] != '\0'; i
++)
2829 if (isdigit (my_string
[i
]))
2830 addr
= (my_string
[i
] - '0') + (addr
* 10);
2832 internal_error (__FILE__
, __LINE__
, _("invalid decimal"));
2839 gdb_realpath (const char *filename
)
2841 /* Method 1: The system has a compile time upper bound on a filename
2842 path. Use that and realpath() to canonicalize the name. This is
2843 the most common case. Note that, if there isn't a compile time
2844 upper bound, you want to avoid realpath() at all costs. */
2845 #if defined(HAVE_REALPATH)
2847 # if defined (PATH_MAX)
2849 # define USE_REALPATH
2850 # elif defined (MAXPATHLEN)
2851 char buf
[MAXPATHLEN
];
2852 # define USE_REALPATH
2854 # if defined (USE_REALPATH)
2855 const char *rp
= realpath (filename
, buf
);
2858 return xstrdup (rp
);
2861 #endif /* HAVE_REALPATH */
2863 /* Method 2: The host system (i.e., GNU) has the function
2864 canonicalize_file_name() which malloc's a chunk of memory and
2865 returns that, use that. */
2866 #if defined(HAVE_CANONICALIZE_FILE_NAME)
2868 char *rp
= canonicalize_file_name (filename
);
2870 return xstrdup (filename
);
2876 /* FIXME: cagney/2002-11-13:
2878 Method 2a: Use realpath() with a NULL buffer. Some systems, due
2879 to the problems described in in method 3, have modified their
2880 realpath() implementation so that it will allocate a buffer when
2881 NULL is passed in. Before this can be used, though, some sort of
2882 configure time test would need to be added. Otherwize the code
2883 will likely core dump. */
2885 /* Method 3: Now we're getting desperate! The system doesn't have a
2886 compile time buffer size and no alternative function. Query the
2887 OS, using pathconf(), for the buffer limit. Care is needed
2888 though, some systems do not limit PATH_MAX (return -1 for
2889 pathconf()) making it impossible to pass a correctly sized buffer
2890 to realpath() (it could always overflow). On those systems, we
2892 #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
2894 /* Find out the max path size. */
2895 long path_max
= pathconf ("/", _PC_PATH_MAX
);
2898 /* PATH_MAX is bounded. */
2899 char *buf
= alloca (path_max
);
2900 char *rp
= realpath (filename
, buf
);
2901 return xstrdup (rp
? rp
: filename
);
2906 /* This system is a lost cause, just dup the buffer. */
2907 return xstrdup (filename
);
2910 /* Return a copy of FILENAME, with its directory prefix canonicalized
2914 xfullpath (const char *filename
)
2916 const char *base_name
= lbasename (filename
);
2921 /* Extract the basename of filename, and return immediately
2922 a copy of filename if it does not contain any directory prefix. */
2923 if (base_name
== filename
)
2924 return xstrdup (filename
);
2926 dir_name
= alloca ((size_t) (base_name
- filename
+ 2));
2927 /* Allocate enough space to store the dir_name + plus one extra
2928 character sometimes needed under Windows (see below), and
2929 then the closing \000 character */
2930 strncpy (dir_name
, filename
, base_name
- filename
);
2931 dir_name
[base_name
- filename
] = '\000';
2933 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2934 /* We need to be careful when filename is of the form 'd:foo', which
2935 is equivalent of d:./foo, which is totally different from d:/foo. */
2936 if (strlen (dir_name
) == 2 && isalpha (dir_name
[0]) && dir_name
[1] == ':')
2939 dir_name
[3] = '\000';
2943 /* Canonicalize the directory prefix, and build the resulting
2944 filename. If the dirname realpath already contains an ending
2945 directory separator, avoid doubling it. */
2946 real_path
= gdb_realpath (dir_name
);
2947 if (IS_DIR_SEPARATOR (real_path
[strlen (real_path
) - 1]))
2948 result
= concat (real_path
, base_name
, NULL
);
2950 result
= concat (real_path
, SLASH_STRING
, base_name
, NULL
);
2957 /* This is the 32-bit CRC function used by the GNU separate debug
2958 facility. An executable may contain a section named
2959 .gnu_debuglink, which holds the name of a separate executable file
2960 containing its debug info, and a checksum of that file's contents,
2961 computed using this function. */
2963 gnu_debuglink_crc32 (unsigned long crc
, unsigned char *buf
, size_t len
)
2965 static const unsigned long crc32_table
[256] = {
2966 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
2967 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
2968 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
2969 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
2970 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
2971 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
2972 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
2973 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
2974 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
2975 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
2976 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
2977 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
2978 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
2979 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
2980 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
2981 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
2982 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
2983 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
2984 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
2985 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
2986 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
2987 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
2988 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
2989 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
2990 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
2991 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
2992 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
2993 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
2994 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
2995 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
2996 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
2997 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
2998 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
2999 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
3000 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
3001 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
3002 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
3003 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
3004 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
3005 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
3006 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
3007 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
3008 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
3009 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
3010 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
3011 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
3012 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
3013 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
3014 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
3015 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
3016 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
3021 crc
= ~crc
& 0xffffffff;
3022 for (end
= buf
+ len
; buf
< end
; ++buf
)
3023 crc
= crc32_table
[(crc
^ *buf
) & 0xff] ^ (crc
>> 8);
3024 return ~crc
& 0xffffffff;;
3028 align_up (ULONGEST v
, int n
)
3030 /* Check that N is really a power of two. */
3031 gdb_assert (n
&& (n
& (n
-1)) == 0);
3032 return (v
+ n
- 1) & -n
;
3036 align_down (ULONGEST v
, int n
)
3038 /* Check that N is really a power of two. */
3039 gdb_assert (n
&& (n
& (n
-1)) == 0);