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 Free Software
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"
31 #include "tui/tui.h" /* For tui_get_command_dimension. */
38 /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */
49 #include "expression.h"
53 #include "filenames.h"
55 #include "inferior.h" /* for signed_pointer_to_address */
57 #include <sys/param.h> /* For MAXPATHLEN */
66 #include <readline/readline.h>
68 #ifdef NEED_DECLARATION_MALLOC
69 extern PTR
malloc (); /* OK: PTR */
71 #ifdef NEED_DECLARATION_REALLOC
72 extern PTR
realloc (); /* OK: PTR */
74 #ifdef NEED_DECLARATION_FREE
77 /* Actually, we'll never have the decl, since we don't define _GNU_SOURCE. */
78 #if defined(HAVE_CANONICALIZE_FILE_NAME) \
79 && defined(NEED_DECLARATION_CANONICALIZE_FILE_NAME)
80 extern char *canonicalize_file_name (const char *);
83 /* readline defines this. */
86 void (*error_begin_hook
) (void);
88 /* Holds the last error message issued by gdb */
90 static struct ui_file
*gdb_lasterr
;
92 /* Prototypes for local functions */
94 static void vfprintf_maybe_filtered (struct ui_file
*, const char *,
97 static void fputs_maybe_filtered (const char *, struct ui_file
*, int);
99 static void do_my_cleanups (struct cleanup
**, struct cleanup
*);
101 static void prompt_for_continue (void);
103 static void set_screen_size (void);
104 static void set_width (void);
106 /* Chain of cleanup actions established with make_cleanup,
107 to be executed if an error happens. */
109 static struct cleanup
*cleanup_chain
; /* cleaned up after a failed command */
110 static struct cleanup
*final_cleanup_chain
; /* cleaned up when gdb exits */
111 static struct cleanup
*run_cleanup_chain
; /* cleaned up on each 'run' */
112 static struct cleanup
*exec_cleanup_chain
; /* cleaned up on each execution command */
113 /* cleaned up on each error from within an execution command */
114 static struct cleanup
*exec_error_cleanup_chain
;
116 /* Pointer to what is left to do for an execution command after the
117 target stops. Used only in asynchronous mode, by targets that
118 support async execution. The finish and until commands use it. So
119 does the target extended-remote command. */
120 struct continuation
*cmd_continuation
;
121 struct continuation
*intermediate_continuation
;
123 /* Nonzero if we have job control. */
127 /* Nonzero means a quit has been requested. */
131 /* Nonzero means quit immediately if Control-C is typed now, rather
132 than waiting until QUIT is executed. Be careful in setting this;
133 code which executes with immediate_quit set has to be very careful
134 about being able to deal with being interrupted at any time. It is
135 almost always better to use QUIT; the only exception I can think of
136 is being able to quit out of a system call (using EINTR loses if
137 the SIGINT happens between the previous QUIT and the system call).
138 To immediately quit in the case in which a SIGINT happens between
139 the previous QUIT and setting immediate_quit (desirable anytime we
140 expect to block), call QUIT after setting immediate_quit. */
144 /* Nonzero means that encoded C++/ObjC names should be printed out in their
145 C++/ObjC form rather than raw. */
149 /* Nonzero means that encoded C++/ObjC names should be printed out in their
150 C++/ObjC form even in assembler language displays. If this is set, but
151 DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls. */
153 int asm_demangle
= 0;
155 /* Nonzero means that strings with character values >0x7F should be printed
156 as octal escapes. Zero means just print the value (e.g. it's an
157 international character, and the terminal or window can cope.) */
159 int sevenbit_strings
= 0;
161 /* String to be printed before error messages, if any. */
163 char *error_pre_print
;
165 /* String to be printed before quit messages, if any. */
167 char *quit_pre_print
;
169 /* String to be printed before warning messages, if any. */
171 char *warning_pre_print
= "\nwarning: ";
173 int pagination_enabled
= 1;
176 /* Add a new cleanup to the cleanup_chain,
177 and return the previous chain pointer
178 to be passed later to do_cleanups or discard_cleanups.
179 Args are FUNCTION to clean up with, and ARG to pass to it. */
182 make_cleanup (make_cleanup_ftype
*function
, void *arg
)
184 return make_my_cleanup (&cleanup_chain
, function
, arg
);
188 make_final_cleanup (make_cleanup_ftype
*function
, void *arg
)
190 return make_my_cleanup (&final_cleanup_chain
, function
, arg
);
194 make_run_cleanup (make_cleanup_ftype
*function
, void *arg
)
196 return make_my_cleanup (&run_cleanup_chain
, function
, arg
);
200 make_exec_cleanup (make_cleanup_ftype
*function
, void *arg
)
202 return make_my_cleanup (&exec_cleanup_chain
, function
, arg
);
206 make_exec_error_cleanup (make_cleanup_ftype
*function
, void *arg
)
208 return make_my_cleanup (&exec_error_cleanup_chain
, function
, arg
);
212 do_freeargv (void *arg
)
214 freeargv ((char **) arg
);
218 make_cleanup_freeargv (char **arg
)
220 return make_my_cleanup (&cleanup_chain
, do_freeargv
, arg
);
224 do_bfd_close_cleanup (void *arg
)
230 make_cleanup_bfd_close (bfd
*abfd
)
232 return make_cleanup (do_bfd_close_cleanup
, abfd
);
236 do_close_cleanup (void *arg
)
244 make_cleanup_close (int fd
)
246 int *saved_fd
= xmalloc (sizeof (fd
));
248 return make_cleanup (do_close_cleanup
, saved_fd
);
252 do_ui_file_delete (void *arg
)
254 ui_file_delete (arg
);
258 make_cleanup_ui_file_delete (struct ui_file
*arg
)
260 return make_my_cleanup (&cleanup_chain
, do_ui_file_delete
, arg
);
264 make_my_cleanup (struct cleanup
**pmy_chain
, make_cleanup_ftype
*function
,
268 = (struct cleanup
*) xmalloc (sizeof (struct cleanup
));
269 struct cleanup
*old_chain
= *pmy_chain
;
271 new->next
= *pmy_chain
;
272 new->function
= function
;
279 /* Discard cleanups and do the actions they describe
280 until we get back to the point OLD_CHAIN in the cleanup_chain. */
283 do_cleanups (struct cleanup
*old_chain
)
285 do_my_cleanups (&cleanup_chain
, old_chain
);
289 do_final_cleanups (struct cleanup
*old_chain
)
291 do_my_cleanups (&final_cleanup_chain
, old_chain
);
295 do_run_cleanups (struct cleanup
*old_chain
)
297 do_my_cleanups (&run_cleanup_chain
, old_chain
);
301 do_exec_cleanups (struct cleanup
*old_chain
)
303 do_my_cleanups (&exec_cleanup_chain
, old_chain
);
307 do_exec_error_cleanups (struct cleanup
*old_chain
)
309 do_my_cleanups (&exec_error_cleanup_chain
, old_chain
);
313 do_my_cleanups (struct cleanup
**pmy_chain
,
314 struct cleanup
*old_chain
)
317 while ((ptr
= *pmy_chain
) != old_chain
)
319 *pmy_chain
= ptr
->next
; /* Do this first incase recursion */
320 (*ptr
->function
) (ptr
->arg
);
325 /* Discard cleanups, not doing the actions they describe,
326 until we get back to the point OLD_CHAIN in the cleanup_chain. */
329 discard_cleanups (struct cleanup
*old_chain
)
331 discard_my_cleanups (&cleanup_chain
, old_chain
);
335 discard_final_cleanups (struct cleanup
*old_chain
)
337 discard_my_cleanups (&final_cleanup_chain
, old_chain
);
341 discard_exec_error_cleanups (struct cleanup
*old_chain
)
343 discard_my_cleanups (&exec_error_cleanup_chain
, old_chain
);
347 discard_my_cleanups (struct cleanup
**pmy_chain
,
348 struct cleanup
*old_chain
)
351 while ((ptr
= *pmy_chain
) != old_chain
)
353 *pmy_chain
= ptr
->next
;
358 /* Set the cleanup_chain to 0, and return the old cleanup chain. */
362 return save_my_cleanups (&cleanup_chain
);
366 save_final_cleanups (void)
368 return save_my_cleanups (&final_cleanup_chain
);
372 save_my_cleanups (struct cleanup
**pmy_chain
)
374 struct cleanup
*old_chain
= *pmy_chain
;
380 /* Restore the cleanup chain from a previously saved chain. */
382 restore_cleanups (struct cleanup
*chain
)
384 restore_my_cleanups (&cleanup_chain
, chain
);
388 restore_final_cleanups (struct cleanup
*chain
)
390 restore_my_cleanups (&final_cleanup_chain
, chain
);
394 restore_my_cleanups (struct cleanup
**pmy_chain
, struct cleanup
*chain
)
399 /* This function is useful for cleanups.
403 old_chain = make_cleanup (free_current_contents, &foo);
405 to arrange to free the object thus allocated. */
408 free_current_contents (void *ptr
)
410 void **location
= ptr
;
411 if (location
== NULL
)
412 internal_error (__FILE__
, __LINE__
,
413 "free_current_contents: NULL pointer");
414 if (*location
!= NULL
)
421 /* Provide a known function that does nothing, to use as a base for
422 for a possibly long chain of cleanups. This is useful where we
423 use the cleanup chain for handling normal cleanups as well as dealing
424 with cleanups that need to be done as a result of a call to error().
425 In such cases, we may not be certain where the first cleanup is, unless
426 we have a do-nothing one to always use as the base. */
429 null_cleanup (void *arg
)
433 /* Add a continuation to the continuation list, the global list
434 cmd_continuation. The new continuation will be added at the front.*/
436 add_continuation (void (*continuation_hook
) (struct continuation_arg
*),
437 struct continuation_arg
*arg_list
)
439 struct continuation
*continuation_ptr
;
442 (struct continuation
*) xmalloc (sizeof (struct continuation
));
443 continuation_ptr
->continuation_hook
= continuation_hook
;
444 continuation_ptr
->arg_list
= arg_list
;
445 continuation_ptr
->next
= cmd_continuation
;
446 cmd_continuation
= continuation_ptr
;
449 /* Walk down the cmd_continuation list, and execute all the
450 continuations. There is a problem though. In some cases new
451 continuations may be added while we are in the middle of this
452 loop. If this happens they will be added in the front, and done
453 before we have a chance of exhausting those that were already
454 there. We need to then save the beginning of the list in a pointer
455 and do the continuations from there on, instead of using the
456 global beginning of list as our iteration pointer.*/
458 do_all_continuations (void)
460 struct continuation
*continuation_ptr
;
461 struct continuation
*saved_continuation
;
463 /* Copy the list header into another pointer, and set the global
464 list header to null, so that the global list can change as a side
465 effect of invoking the continuations and the processing of
466 the preexisting continuations will not be affected. */
467 continuation_ptr
= cmd_continuation
;
468 cmd_continuation
= NULL
;
470 /* Work now on the list we have set aside. */
471 while (continuation_ptr
)
473 (continuation_ptr
->continuation_hook
) (continuation_ptr
->arg_list
);
474 saved_continuation
= continuation_ptr
;
475 continuation_ptr
= continuation_ptr
->next
;
476 xfree (saved_continuation
);
480 /* Walk down the cmd_continuation list, and get rid of all the
483 discard_all_continuations (void)
485 struct continuation
*continuation_ptr
;
487 while (cmd_continuation
)
489 continuation_ptr
= cmd_continuation
;
490 cmd_continuation
= continuation_ptr
->next
;
491 xfree (continuation_ptr
);
495 /* Add a continuation to the continuation list, the global list
496 intermediate_continuation. The new continuation will be added at the front.*/
498 add_intermediate_continuation (void (*continuation_hook
)
499 (struct continuation_arg
*),
500 struct continuation_arg
*arg_list
)
502 struct continuation
*continuation_ptr
;
505 (struct continuation
*) xmalloc (sizeof (struct continuation
));
506 continuation_ptr
->continuation_hook
= continuation_hook
;
507 continuation_ptr
->arg_list
= arg_list
;
508 continuation_ptr
->next
= intermediate_continuation
;
509 intermediate_continuation
= continuation_ptr
;
512 /* Walk down the cmd_continuation list, and execute all the
513 continuations. There is a problem though. In some cases new
514 continuations may be added while we are in the middle of this
515 loop. If this happens they will be added in the front, and done
516 before we have a chance of exhausting those that were already
517 there. We need to then save the beginning of the list in a pointer
518 and do the continuations from there on, instead of using the
519 global beginning of list as our iteration pointer.*/
521 do_all_intermediate_continuations (void)
523 struct continuation
*continuation_ptr
;
524 struct continuation
*saved_continuation
;
526 /* Copy the list header into another pointer, and set the global
527 list header to null, so that the global list can change as a side
528 effect of invoking the continuations and the processing of
529 the preexisting continuations will not be affected. */
530 continuation_ptr
= intermediate_continuation
;
531 intermediate_continuation
= NULL
;
533 /* Work now on the list we have set aside. */
534 while (continuation_ptr
)
536 (continuation_ptr
->continuation_hook
) (continuation_ptr
->arg_list
);
537 saved_continuation
= continuation_ptr
;
538 continuation_ptr
= continuation_ptr
->next
;
539 xfree (saved_continuation
);
543 /* Walk down the cmd_continuation list, and get rid of all the
546 discard_all_intermediate_continuations (void)
548 struct continuation
*continuation_ptr
;
550 while (intermediate_continuation
)
552 continuation_ptr
= intermediate_continuation
;
553 intermediate_continuation
= continuation_ptr
->next
;
554 xfree (continuation_ptr
);
560 /* Print a warning message. The first argument STRING is the warning
561 message, used as an fprintf format string, the second is the
562 va_list of arguments for that string. A warning is unfiltered (not
563 paginated) so that the user does not need to page through each
564 screen full of warnings when there are lots of them. */
567 vwarning (const char *string
, va_list args
)
570 (*warning_hook
) (string
, args
);
573 target_terminal_ours ();
574 wrap_here (""); /* Force out any buffered output */
575 gdb_flush (gdb_stdout
);
576 if (warning_pre_print
)
577 fputs_unfiltered (warning_pre_print
, gdb_stderr
);
578 vfprintf_unfiltered (gdb_stderr
, string
, args
);
579 fprintf_unfiltered (gdb_stderr
, "\n");
584 /* Print a warning message.
585 The first argument STRING is the warning message, used as a fprintf string,
586 and the remaining args are passed as arguments to it.
587 The primary difference between warnings and errors is that a warning
588 does not force the return to command level. */
591 warning (const char *string
, ...)
594 va_start (args
, string
);
595 vwarning (string
, args
);
599 /* Print an error message and return to command level.
600 The first argument STRING is the error message, used as a fprintf string,
601 and the remaining args are passed as arguments to it. */
604 verror (const char *string
, va_list args
)
606 struct ui_file
*tmp_stream
= mem_fileopen ();
607 make_cleanup_ui_file_delete (tmp_stream
);
608 vfprintf_unfiltered (tmp_stream
, string
, args
);
609 error_stream (tmp_stream
);
613 error (const char *string
, ...)
616 va_start (args
, string
);
617 verror (string
, args
);
622 do_write (void *data
, const char *buffer
, long length_buffer
)
624 ui_file_write (data
, buffer
, length_buffer
);
627 /* Cause a silent error to occur. Any error message is recorded
628 though it is not issued. */
630 error_silent (const char *string
, ...)
633 struct ui_file
*tmp_stream
= mem_fileopen ();
634 va_start (args
, string
);
635 make_cleanup_ui_file_delete (tmp_stream
);
636 vfprintf_unfiltered (tmp_stream
, string
, args
);
637 /* Copy the stream into the GDB_LASTERR buffer. */
638 ui_file_rewind (gdb_lasterr
);
639 ui_file_put (tmp_stream
, do_write
, gdb_lasterr
);
642 throw_exception (RETURN_ERROR
);
645 /* Output an error message including any pre-print text to gdb_stderr. */
647 error_output_message (char *pre_print
, char *msg
)
649 target_terminal_ours ();
650 wrap_here (""); /* Force out any buffered output */
651 gdb_flush (gdb_stdout
);
652 annotate_error_begin ();
654 fputs_filtered (pre_print
, gdb_stderr
);
655 fputs_filtered (msg
, gdb_stderr
);
656 fprintf_filtered (gdb_stderr
, "\n");
660 error_stream (struct ui_file
*stream
)
662 if (error_begin_hook
)
665 /* Copy the stream into the GDB_LASTERR buffer. */
666 ui_file_rewind (gdb_lasterr
);
667 ui_file_put (stream
, do_write
, gdb_lasterr
);
669 /* Write the message plus any error_pre_print to gdb_stderr. */
670 target_terminal_ours ();
671 wrap_here (""); /* Force out any buffered output */
672 gdb_flush (gdb_stdout
);
673 annotate_error_begin ();
675 fputs_filtered (error_pre_print
, gdb_stderr
);
676 ui_file_put (stream
, do_write
, gdb_stderr
);
677 fprintf_filtered (gdb_stderr
, "\n");
679 throw_exception (RETURN_ERROR
);
682 /* Get the last error message issued by gdb */
685 error_last_message (void)
688 return ui_file_xstrdup (gdb_lasterr
, &len
);
691 /* This is to be called by main() at the very beginning */
696 gdb_lasterr
= mem_fileopen ();
699 /* Print a message reporting an internal error/warning. Ask the user
700 if they want to continue, dump core, or just exit. Return
701 something to indicate a quit. */
703 struct internal_problem
706 /* FIXME: cagney/2002-08-15: There should be ``maint set/show''
707 commands available for controlling these variables. */
708 enum auto_boolean should_quit
;
709 enum auto_boolean should_dump_core
;
712 /* Report a problem, internal to GDB, to the user. Once the problem
713 has been reported, and assuming GDB didn't quit, the caller can
714 either allow execution to resume or throw an error. */
717 internal_vproblem (struct internal_problem
*problem
,
718 const char *file
, int line
, const char *fmt
, va_list ap
)
725 /* Don't allow infinite error/warning recursion. */
727 static char msg
[] = "Recursive internal problem.\n";
735 fputs_unfiltered (msg
, gdb_stderr
);
736 abort (); /* NOTE: GDB has only three calls to abort(). */
739 write (STDERR_FILENO
, msg
, sizeof (msg
));
744 /* Try to get the message out and at the start of a new line. */
745 target_terminal_ours ();
748 /* Create a string containing the full error/warning message. Need
749 to call query with this full string, as otherwize the reason
750 (error/warning) and question become separated. Format using a
751 style similar to a compiler error message. Include extra detail
752 so that the user knows that they are living on the edge. */
755 xvasprintf (&msg
, fmt
, ap
);
756 xasprintf (&reason
, "\
758 A problem internal to GDB has been detected,\n\
759 further debugging may prove unreliable.", file
, line
, problem
->name
, msg
);
761 make_cleanup (xfree
, reason
);
764 switch (problem
->should_quit
)
766 case AUTO_BOOLEAN_AUTO
:
767 /* Default (yes/batch case) is to quit GDB. When in batch mode
768 this lessens the likelhood of GDB going into an infinate
770 quit_p
= query ("%s\nQuit this debugging session? ", reason
);
772 case AUTO_BOOLEAN_TRUE
:
775 case AUTO_BOOLEAN_FALSE
:
779 internal_error (__FILE__
, __LINE__
, "bad switch");
782 switch (problem
->should_dump_core
)
784 case AUTO_BOOLEAN_AUTO
:
785 /* Default (yes/batch case) is to dump core. This leaves a GDB
786 `dropping' so that it is easier to see that something went
788 dump_core_p
= query ("%s\nCreate a core file of GDB? ", reason
);
791 case AUTO_BOOLEAN_TRUE
:
794 case AUTO_BOOLEAN_FALSE
:
798 internal_error (__FILE__
, __LINE__
, "bad switch");
804 abort (); /* NOTE: GDB has only three calls to abort(). */
813 abort (); /* NOTE: GDB has only three calls to abort(). */
820 static struct internal_problem internal_error_problem
= {
821 "internal-error", AUTO_BOOLEAN_AUTO
, AUTO_BOOLEAN_AUTO
825 internal_verror (const char *file
, int line
, const char *fmt
, va_list ap
)
827 internal_vproblem (&internal_error_problem
, file
, line
, fmt
, ap
);
828 throw_exception (RETURN_ERROR
);
832 internal_error (const char *file
, int line
, const char *string
, ...)
835 va_start (ap
, string
);
836 internal_verror (file
, line
, string
, ap
);
840 static struct internal_problem internal_warning_problem
= {
841 "internal-error", AUTO_BOOLEAN_AUTO
, AUTO_BOOLEAN_AUTO
845 internal_vwarning (const char *file
, int line
, const char *fmt
, va_list ap
)
847 internal_vproblem (&internal_warning_problem
, file
, line
, fmt
, ap
);
851 internal_warning (const char *file
, int line
, const char *string
, ...)
854 va_start (ap
, string
);
855 internal_vwarning (file
, line
, string
, ap
);
859 /* The strerror() function can return NULL for errno values that are
860 out of range. Provide a "safe" version that always returns a
864 safe_strerror (int errnum
)
869 msg
= strerror (errnum
);
872 sprintf (buf
, "(undocumented errno %d)", errnum
);
878 /* Print the system error message for errno, and also mention STRING
879 as the file name for which the error was encountered.
880 Then return to command level. */
883 perror_with_name (const char *string
)
888 err
= safe_strerror (errno
);
889 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
890 strcpy (combined
, string
);
891 strcat (combined
, ": ");
892 strcat (combined
, err
);
894 /* I understand setting these is a matter of taste. Still, some people
895 may clear errno but not know about bfd_error. Doing this here is not
897 bfd_set_error (bfd_error_no_error
);
900 error ("%s.", combined
);
903 /* Print the system error message for ERRCODE, and also mention STRING
904 as the file name for which the error was encountered. */
907 print_sys_errmsg (const char *string
, int errcode
)
912 err
= safe_strerror (errcode
);
913 combined
= (char *) alloca (strlen (err
) + strlen (string
) + 3);
914 strcpy (combined
, string
);
915 strcat (combined
, ": ");
916 strcat (combined
, err
);
918 /* We want anything which was printed on stdout to come out first, before
920 gdb_flush (gdb_stdout
);
921 fprintf_unfiltered (gdb_stderr
, "%s.\n", combined
);
924 /* Control C eventually causes this to be called, at a convenient time. */
929 struct serial
*gdb_stdout_serial
= serial_fdopen (1);
931 target_terminal_ours ();
933 /* We want all output to appear now, before we print "Quit". We
934 have 3 levels of buffering we have to flush (it's possible that
935 some of these should be changed to flush the lower-level ones
938 /* 1. The _filtered buffer. */
939 wrap_here ((char *) 0);
941 /* 2. The stdio buffer. */
942 gdb_flush (gdb_stdout
);
943 gdb_flush (gdb_stderr
);
945 /* 3. The system-level buffer. */
946 serial_drain_output (gdb_stdout_serial
);
947 serial_un_fdopen (gdb_stdout_serial
);
949 annotate_error_begin ();
951 /* Don't use *_filtered; we don't want to prompt the user to continue. */
953 fputs_unfiltered (quit_pre_print
, gdb_stderr
);
956 /* No steenking SIGINT will ever be coming our way when the
957 program is resumed. Don't lie. */
958 fprintf_unfiltered (gdb_stderr
, "Quit\n");
961 /* If there is no terminal switching for this target, then we can't
962 possibly get screwed by the lack of job control. */
963 || current_target
.to_terminal_ours
== NULL
)
964 fprintf_unfiltered (gdb_stderr
, "Quit\n");
966 fprintf_unfiltered (gdb_stderr
,
967 "Quit (expect signal SIGINT when the program is resumed)\n");
969 throw_exception (RETURN_QUIT
);
972 /* Control C comes here */
974 request_quit (int signo
)
977 /* Restore the signal handler. Harmless with BSD-style signals, needed
978 for System V-style signals. So just always do it, rather than worrying
979 about USG defines and stuff like that. */
980 signal (signo
, request_quit
);
990 /* Memory management stuff (malloc friends). */
993 mmalloc (void *md
, size_t size
)
995 return malloc (size
); /* NOTE: GDB's only call to malloc() */
999 mrealloc (void *md
, void *ptr
, size_t size
)
1001 if (ptr
== 0) /* Guard against old realloc's */
1002 return mmalloc (md
, size
);
1004 return realloc (ptr
, size
); /* NOTE: GDB's only call to ralloc() */
1008 mcalloc (void *md
, size_t number
, size_t size
)
1010 return calloc (number
, size
); /* NOTE: GDB's only call to calloc() */
1014 mfree (void *md
, void *ptr
)
1016 free (ptr
); /* NOTE: GDB's only call to free() */
1019 /* This used to do something interesting with USE_MMALLOC.
1020 * It can be retired any time. -- chastain 2004-01-19. */
1022 init_malloc (void *md
)
1026 /* Called when a memory allocation fails, with the number of bytes of
1027 memory requested in SIZE. */
1034 internal_error (__FILE__
, __LINE__
,
1035 "virtual memory exhausted: can't allocate %ld bytes.",
1040 internal_error (__FILE__
, __LINE__
, "virtual memory exhausted.");
1044 /* The xmmalloc() family of memory management routines.
1046 These are are like the mmalloc() family except that they implement
1047 consistent semantics and guard against typical memory management
1048 problems: if a malloc fails, an internal error is thrown; if
1049 free(NULL) is called, it is ignored; if *alloc(0) is called, NULL
1052 All these routines are implemented using the mmalloc() family. */
1055 xmmalloc (void *md
, size_t size
)
1059 /* See libiberty/xmalloc.c. This function need's to match that's
1060 semantics. It never returns NULL. */
1064 val
= mmalloc (md
, size
);
1072 xmrealloc (void *md
, void *ptr
, size_t size
)
1076 /* See libiberty/xmalloc.c. This function need's to match that's
1077 semantics. It never returns NULL. */
1082 val
= mrealloc (md
, ptr
, size
);
1084 val
= mmalloc (md
, size
);
1092 xmcalloc (void *md
, size_t number
, size_t size
)
1096 /* See libiberty/xmalloc.c. This function need's to match that's
1097 semantics. It never returns NULL. */
1098 if (number
== 0 || size
== 0)
1104 mem
= mcalloc (md
, number
, size
);
1106 nomem (number
* size
);
1112 xmfree (void *md
, void *ptr
)
1118 /* The xmalloc() (libiberty.h) family of memory management routines.
1120 These are like the ISO-C malloc() family except that they implement
1121 consistent semantics and guard against typical memory management
1122 problems. See xmmalloc() above for further information.
1124 All these routines are wrappers to the xmmalloc() family. */
1126 /* NOTE: These are declared using PTR to ensure consistency with
1127 "libiberty.h". xfree() is GDB local. */
1130 xmalloc (size_t size
)
1132 return xmmalloc (NULL
, size
);
1136 xrealloc (PTR ptr
, size_t size
) /* OK: PTR */
1138 return xmrealloc (NULL
, ptr
, size
);
1142 xcalloc (size_t number
, size_t size
)
1144 return xmcalloc (NULL
, number
, size
);
1154 /* Like asprintf/vasprintf but get an internal_error if the call
1158 xstrprintf (const char *format
, ...)
1162 va_start (args
, format
);
1163 xvasprintf (&ret
, format
, args
);
1169 xasprintf (char **ret
, const char *format
, ...)
1172 va_start (args
, format
);
1173 xvasprintf (ret
, format
, args
);
1178 xvasprintf (char **ret
, const char *format
, va_list ap
)
1180 int status
= vasprintf (ret
, format
, ap
);
1181 /* NULL could be returned due to a memory allocation problem; a
1182 badly format string; or something else. */
1184 internal_error (__FILE__
, __LINE__
,
1185 "vasprintf returned NULL buffer (errno %d)", errno
);
1186 /* A negative status with a non-NULL buffer shouldn't never
1187 happen. But to be sure. */
1189 internal_error (__FILE__
, __LINE__
,
1190 "vasprintf call failed (errno %d)", errno
);
1194 /* My replacement for the read system call.
1195 Used like `read' but keeps going if `read' returns too soon. */
1198 myread (int desc
, char *addr
, int len
)
1205 val
= read (desc
, addr
, len
);
1209 return orglen
- len
;
1216 /* Make a copy of the string at PTR with SIZE characters
1217 (and add a null character at the end in the copy).
1218 Uses malloc to get the space. Returns the address of the copy. */
1221 savestring (const char *ptr
, size_t size
)
1223 char *p
= (char *) xmalloc (size
+ 1);
1224 memcpy (p
, ptr
, size
);
1230 msavestring (void *md
, const char *ptr
, size_t size
)
1232 char *p
= (char *) xmmalloc (md
, size
+ 1);
1233 memcpy (p
, ptr
, size
);
1239 mstrsave (void *md
, const char *ptr
)
1241 return (msavestring (md
, ptr
, strlen (ptr
)));
1245 print_spaces (int n
, struct ui_file
*file
)
1247 fputs_unfiltered (n_spaces (n
), file
);
1250 /* Print a host address. */
1253 gdb_print_host_address (const void *addr
, struct ui_file
*stream
)
1256 /* We could use the %p conversion specifier to fprintf if we had any
1257 way of knowing whether this host supports it. But the following
1258 should work on the Alpha and on 32 bit machines. */
1260 fprintf_filtered (stream
, "0x%lx", (unsigned long) addr
);
1263 /* Ask user a y-or-n question and return 1 iff answer is yes.
1264 Takes three args which are given to printf to print the question.
1265 The first, a control string, should end in "? ".
1266 It should not say how to answer, because we do that. */
1270 query (const char *ctlstr
, ...)
1277 va_start (args
, ctlstr
);
1281 return query_hook (ctlstr
, args
);
1284 /* Automatically answer "yes" if input is not from a terminal. */
1285 if (!input_from_terminal_p ())
1290 wrap_here (""); /* Flush any buffered output */
1291 gdb_flush (gdb_stdout
);
1293 if (annotation_level
> 1)
1294 printf_filtered ("\n\032\032pre-query\n");
1296 vfprintf_filtered (gdb_stdout
, ctlstr
, args
);
1297 printf_filtered ("(y or n) ");
1299 if (annotation_level
> 1)
1300 printf_filtered ("\n\032\032query\n");
1303 gdb_flush (gdb_stdout
);
1305 answer
= fgetc (stdin
);
1306 clearerr (stdin
); /* in case of C-d */
1307 if (answer
== EOF
) /* C-d */
1312 /* Eat rest of input line, to EOF or newline */
1316 ans2
= fgetc (stdin
);
1319 while (ans2
!= EOF
&& ans2
!= '\n' && ans2
!= '\r');
1333 printf_filtered ("Please answer y or n.\n");
1336 if (annotation_level
> 1)
1337 printf_filtered ("\n\032\032post-query\n");
1342 /* Print an error message saying that we couldn't make sense of a
1343 \^mumble sequence in a string or character constant. START and END
1344 indicate a substring of some larger string that contains the
1345 erroneous backslash sequence, missing the initial backslash. */
1347 no_control_char_error (const char *start
, const char *end
)
1349 int len
= end
- start
;
1350 char *copy
= alloca (end
- start
+ 1);
1352 memcpy (copy
, start
, len
);
1355 error ("There is no control character `\\%s' in the `%s' character set.",
1356 copy
, target_charset ());
1359 /* Parse a C escape sequence. STRING_PTR points to a variable
1360 containing a pointer to the string to parse. That pointer
1361 should point to the character after the \. That pointer
1362 is updated past the characters we use. The value of the
1363 escape sequence is returned.
1365 A negative value means the sequence \ newline was seen,
1366 which is supposed to be equivalent to nothing at all.
1368 If \ is followed by a null character, we return a negative
1369 value and leave the string pointer pointing at the null character.
1371 If \ is followed by 000, we return 0 and leave the string pointer
1372 after the zeros. A value of 0 does not mean end of string. */
1375 parse_escape (char **string_ptr
)
1378 int c
= *(*string_ptr
)++;
1379 if (c_parse_backslash (c
, &target_char
))
1391 /* Remember where this escape sequence started, for reporting
1393 char *sequence_start_pos
= *string_ptr
- 1;
1395 c
= *(*string_ptr
)++;
1399 /* XXXCHARSET: What is `delete' in the host character set? */
1402 if (!host_char_to_target (c
, &target_char
))
1403 error ("There is no character corresponding to `Delete' "
1404 "in the target character set `%s'.", host_charset ());
1409 target_char
= parse_escape (string_ptr
);
1412 if (!host_char_to_target (c
, &target_char
))
1413 no_control_char_error (sequence_start_pos
, *string_ptr
);
1416 /* Now target_char is something like `c', and we want to find
1417 its control-character equivalent. */
1418 if (!target_char_to_control_char (target_char
, &target_char
))
1419 no_control_char_error (sequence_start_pos
, *string_ptr
);
1424 /* XXXCHARSET: we need to use isdigit and value-of-digit
1425 methods of the host character set here. */
1441 if (c
>= '0' && c
<= '7')
1455 if (!host_char_to_target (c
, &target_char
))
1457 ("The escape sequence `\%c' is equivalent to plain `%c', which"
1458 " has no equivalent\n" "in the `%s' character set.", c
, c
,
1464 /* Print the character C on STREAM as part of the contents of a literal
1465 string whose delimiter is QUOTER. Note that this routine should only
1466 be call for printing things which are independent of the language
1467 of the program being debugged. */
1470 printchar (int c
, void (*do_fputs
) (const char *, struct ui_file
*),
1471 void (*do_fprintf
) (struct ui_file
*, const char *, ...),
1472 struct ui_file
*stream
, int quoter
)
1475 c
&= 0xFF; /* Avoid sign bit follies */
1477 if (c
< 0x20 || /* Low control chars */
1478 (c
>= 0x7F && c
< 0xA0) || /* DEL, High controls */
1479 (sevenbit_strings
&& c
>= 0x80))
1480 { /* high order bit set */
1484 do_fputs ("\\n", stream
);
1487 do_fputs ("\\b", stream
);
1490 do_fputs ("\\t", stream
);
1493 do_fputs ("\\f", stream
);
1496 do_fputs ("\\r", stream
);
1499 do_fputs ("\\e", stream
);
1502 do_fputs ("\\a", stream
);
1505 do_fprintf (stream
, "\\%.3o", (unsigned int) c
);
1511 if (c
== '\\' || c
== quoter
)
1512 do_fputs ("\\", stream
);
1513 do_fprintf (stream
, "%c", c
);
1517 /* Print the character C on STREAM as part of the contents of a
1518 literal string whose delimiter is QUOTER. Note that these routines
1519 should only be call for printing things which are independent of
1520 the language of the program being debugged. */
1523 fputstr_filtered (const char *str
, int quoter
, struct ui_file
*stream
)
1526 printchar (*str
++, fputs_filtered
, fprintf_filtered
, stream
, quoter
);
1530 fputstr_unfiltered (const char *str
, int quoter
, struct ui_file
*stream
)
1533 printchar (*str
++, fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1537 fputstrn_unfiltered (const char *str
, int n
, int quoter
,
1538 struct ui_file
*stream
)
1541 for (i
= 0; i
< n
; i
++)
1542 printchar (str
[i
], fputs_unfiltered
, fprintf_unfiltered
, stream
, quoter
);
1546 /* Number of lines per page or UINT_MAX if paging is disabled. */
1547 static unsigned int lines_per_page
;
1549 /* Number of chars per line or UINT_MAX if line folding is disabled. */
1550 static unsigned int chars_per_line
;
1552 /* Current count of lines printed on this page, chars on this line. */
1553 static unsigned int lines_printed
, chars_printed
;
1555 /* Buffer and start column of buffered text, for doing smarter word-
1556 wrapping. When someone calls wrap_here(), we start buffering output
1557 that comes through fputs_filtered(). If we see a newline, we just
1558 spit it out and forget about the wrap_here(). If we see another
1559 wrap_here(), we spit it out and remember the newer one. If we see
1560 the end of the line, we spit out a newline, the indent, and then
1561 the buffered output. */
1563 /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which
1564 are waiting to be output (they have already been counted in chars_printed).
1565 When wrap_buffer[0] is null, the buffer is empty. */
1566 static char *wrap_buffer
;
1568 /* Pointer in wrap_buffer to the next character to fill. */
1569 static char *wrap_pointer
;
1571 /* String to indent by if the wrap occurs. Must not be NULL if wrap_column
1573 static char *wrap_indent
;
1575 /* Column number on the screen where wrap_buffer begins, or 0 if wrapping
1576 is not in effect. */
1577 static int wrap_column
;
1580 /* Inialize the number of lines per page and chars per line. */
1583 init_page_info (void)
1586 if (!tui_get_command_dimension (&chars_per_line
, &lines_per_page
))
1591 #if defined(__GO32__)
1592 rows
= ScreenRows ();
1593 cols
= ScreenCols ();
1594 lines_per_page
= rows
;
1595 chars_per_line
= cols
;
1597 /* Make sure Readline has initialized its terminal settings. */
1598 rl_reset_terminal (NULL
);
1600 /* Get the screen size from Readline. */
1601 rl_get_screen_size (&rows
, &cols
);
1602 lines_per_page
= rows
;
1603 chars_per_line
= cols
;
1605 /* Readline should have fetched the termcap entry for us. */
1606 if (tgetnum ("li") < 0 || getenv ("EMACS"))
1608 /* The number of lines per page is not mentioned in the
1609 terminal description. This probably means that paging is
1610 not useful (e.g. emacs shell window), so disable paging. */
1611 lines_per_page
= UINT_MAX
;
1614 /* FIXME: Get rid of this junk. */
1615 #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
1616 SIGWINCH_HANDLER (SIGWINCH
);
1619 /* If the output is not a terminal, don't paginate it. */
1620 if (!ui_file_isatty (gdb_stdout
))
1621 lines_per_page
= UINT_MAX
;
1629 /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */
1632 set_screen_size (void)
1634 int rows
= lines_per_page
;
1635 int cols
= chars_per_line
;
1641 rl_get_screen_size (NULL
, &cols
);
1643 /* Update Readline's idea of the terminal size. */
1644 rl_set_screen_size (rows
, cols
);
1647 /* Reinitialize WRAP_BUFFER according to the current value of
1653 if (chars_per_line
== 0)
1658 wrap_buffer
= (char *) xmalloc (chars_per_line
+ 2);
1659 wrap_buffer
[0] = '\0';
1662 wrap_buffer
= (char *) xrealloc (wrap_buffer
, chars_per_line
+ 2);
1663 wrap_pointer
= wrap_buffer
; /* Start it at the beginning. */
1667 set_width_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1674 set_height_command (char *args
, int from_tty
, struct cmd_list_element
*c
)
1679 /* Wait, so the user can read what's on the screen. Prompt the user
1680 to continue by pressing RETURN. */
1683 prompt_for_continue (void)
1686 char cont_prompt
[120];
1688 if (annotation_level
> 1)
1689 printf_unfiltered ("\n\032\032pre-prompt-for-continue\n");
1691 strcpy (cont_prompt
,
1692 "---Type <return> to continue, or q <return> to quit---");
1693 if (annotation_level
> 1)
1694 strcat (cont_prompt
, "\n\032\032prompt-for-continue\n");
1696 /* We must do this *before* we call gdb_readline, else it will eventually
1697 call us -- thinking that we're trying to print beyond the end of the
1699 reinitialize_more_filter ();
1702 /* On a real operating system, the user can quit with SIGINT.
1705 'q' is provided on all systems so users don't have to change habits
1706 from system to system, and because telling them what to do in
1707 the prompt is more user-friendly than expecting them to think of
1709 /* Call readline, not gdb_readline, because GO32 readline handles control-C
1710 whereas control-C to gdb_readline will cause the user to get dumped
1712 ignore
= gdb_readline_wrapper (cont_prompt
);
1714 if (annotation_level
> 1)
1715 printf_unfiltered ("\n\032\032post-prompt-for-continue\n");
1720 while (*p
== ' ' || *p
== '\t')
1725 request_quit (SIGINT
);
1727 async_request_quit (0);
1733 /* Now we have to do this again, so that GDB will know that it doesn't
1734 need to save the ---Type <return>--- line at the top of the screen. */
1735 reinitialize_more_filter ();
1737 dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */
1740 /* Reinitialize filter; ie. tell it to reset to original values. */
1743 reinitialize_more_filter (void)
1749 /* Indicate that if the next sequence of characters overflows the line,
1750 a newline should be inserted here rather than when it hits the end.
1751 If INDENT is non-null, it is a string to be printed to indent the
1752 wrapped part on the next line. INDENT must remain accessible until
1753 the next call to wrap_here() or until a newline is printed through
1756 If the line is already overfull, we immediately print a newline and
1757 the indentation, and disable further wrapping.
1759 If we don't know the width of lines, but we know the page height,
1760 we must not wrap words, but should still keep track of newlines
1761 that were explicitly printed.
1763 INDENT should not contain tabs, as that will mess up the char count
1764 on the next line. FIXME.
1766 This routine is guaranteed to force out any output which has been
1767 squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be
1768 used to force out output from the wrap_buffer. */
1771 wrap_here (char *indent
)
1773 /* This should have been allocated, but be paranoid anyway. */
1775 internal_error (__FILE__
, __LINE__
, "failed internal consistency check");
1779 *wrap_pointer
= '\0';
1780 fputs_unfiltered (wrap_buffer
, gdb_stdout
);
1782 wrap_pointer
= wrap_buffer
;
1783 wrap_buffer
[0] = '\0';
1784 if (chars_per_line
== UINT_MAX
) /* No line overflow checking */
1788 else if (chars_printed
>= chars_per_line
)
1790 puts_filtered ("\n");
1792 puts_filtered (indent
);
1797 wrap_column
= chars_printed
;
1801 wrap_indent
= indent
;
1805 /* Print input string to gdb_stdout, filtered, with wrap,
1806 arranging strings in columns of n chars. String can be
1807 right or left justified in the column. Never prints
1808 trailing spaces. String should never be longer than
1809 width. FIXME: this could be useful for the EXAMINE
1810 command, which currently doesn't tabulate very well */
1813 puts_filtered_tabular (char *string
, int width
, int right
)
1819 gdb_assert (chars_per_line
> 0);
1820 if (chars_per_line
== UINT_MAX
)
1822 fputs_filtered (string
, gdb_stdout
);
1823 fputs_filtered ("\n", gdb_stdout
);
1827 if (((chars_printed
- 1) / width
+ 2) * width
>= chars_per_line
)
1828 fputs_filtered ("\n", gdb_stdout
);
1830 if (width
>= chars_per_line
)
1831 width
= chars_per_line
- 1;
1833 stringlen
= strlen (string
);
1835 if (chars_printed
> 0)
1836 spaces
= width
- (chars_printed
- 1) % width
- 1;
1838 spaces
+= width
- stringlen
;
1840 spacebuf
= alloca (spaces
+ 1);
1841 spacebuf
[spaces
] = '\0';
1843 spacebuf
[spaces
] = ' ';
1845 fputs_filtered (spacebuf
, gdb_stdout
);
1846 fputs_filtered (string
, gdb_stdout
);
1850 /* Ensure that whatever gets printed next, using the filtered output
1851 commands, starts at the beginning of the line. I.E. if there is
1852 any pending output for the current line, flush it and start a new
1853 line. Otherwise do nothing. */
1858 if (chars_printed
> 0)
1860 puts_filtered ("\n");
1865 /* Like fputs but if FILTER is true, pause after every screenful.
1867 Regardless of FILTER can wrap at points other than the final
1868 character of a line.
1870 Unlike fputs, fputs_maybe_filtered does not return a value.
1871 It is OK for LINEBUFFER to be NULL, in which case just don't print
1874 Note that a longjmp to top level may occur in this routine (only if
1875 FILTER is true) (since prompt_for_continue may do so) so this
1876 routine should not be called when cleanups are not in place. */
1879 fputs_maybe_filtered (const char *linebuffer
, struct ui_file
*stream
,
1882 const char *lineptr
;
1884 if (linebuffer
== 0)
1887 /* Don't do any filtering if it is disabled. */
1888 if ((stream
!= gdb_stdout
) || !pagination_enabled
1889 || (lines_per_page
== UINT_MAX
&& chars_per_line
== UINT_MAX
))
1891 fputs_unfiltered (linebuffer
, stream
);
1895 /* Go through and output each character. Show line extension
1896 when this is necessary; prompt user for new page when this is
1899 lineptr
= linebuffer
;
1902 /* Possible new page. */
1903 if (filter
&& (lines_printed
>= lines_per_page
- 1))
1904 prompt_for_continue ();
1906 while (*lineptr
&& *lineptr
!= '\n')
1908 /* Print a single line. */
1909 if (*lineptr
== '\t')
1912 *wrap_pointer
++ = '\t';
1914 fputc_unfiltered ('\t', stream
);
1915 /* Shifting right by 3 produces the number of tab stops
1916 we have already passed, and then adding one and
1917 shifting left 3 advances to the next tab stop. */
1918 chars_printed
= ((chars_printed
>> 3) + 1) << 3;
1924 *wrap_pointer
++ = *lineptr
;
1926 fputc_unfiltered (*lineptr
, stream
);
1931 if (chars_printed
>= chars_per_line
)
1933 unsigned int save_chars
= chars_printed
;
1937 /* If we aren't actually wrapping, don't output newline --
1938 if chars_per_line is right, we probably just overflowed
1939 anyway; if it's wrong, let us keep going. */
1941 fputc_unfiltered ('\n', stream
);
1943 /* Possible new page. */
1944 if (lines_printed
>= lines_per_page
- 1)
1945 prompt_for_continue ();
1947 /* Now output indentation and wrapped string */
1950 fputs_unfiltered (wrap_indent
, stream
);
1951 *wrap_pointer
= '\0'; /* Null-terminate saved stuff */
1952 fputs_unfiltered (wrap_buffer
, stream
); /* and eject it */
1953 /* FIXME, this strlen is what prevents wrap_indent from
1954 containing tabs. However, if we recurse to print it
1955 and count its chars, we risk trouble if wrap_indent is
1956 longer than (the user settable) chars_per_line.
1957 Note also that this can set chars_printed > chars_per_line
1958 if we are printing a long string. */
1959 chars_printed
= strlen (wrap_indent
)
1960 + (save_chars
- wrap_column
);
1961 wrap_pointer
= wrap_buffer
; /* Reset buffer */
1962 wrap_buffer
[0] = '\0';
1963 wrap_column
= 0; /* And disable fancy wrap */
1968 if (*lineptr
== '\n')
1971 wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */
1973 fputc_unfiltered ('\n', stream
);
1980 fputs_filtered (const char *linebuffer
, struct ui_file
*stream
)
1982 fputs_maybe_filtered (linebuffer
, stream
, 1);
1986 putchar_unfiltered (int c
)
1989 ui_file_write (gdb_stdout
, &buf
, 1);
1993 /* Write character C to gdb_stdout using GDB's paging mechanism and return C.
1994 May return nonlocally. */
1997 putchar_filtered (int c
)
1999 return fputc_filtered (c
, gdb_stdout
);
2003 fputc_unfiltered (int c
, struct ui_file
*stream
)
2006 ui_file_write (stream
, &buf
, 1);
2011 fputc_filtered (int c
, struct ui_file
*stream
)
2017 fputs_filtered (buf
, stream
);
2021 /* puts_debug is like fputs_unfiltered, except it prints special
2022 characters in printable fashion. */
2025 puts_debug (char *prefix
, char *string
, char *suffix
)
2029 /* Print prefix and suffix after each line. */
2030 static int new_line
= 1;
2031 static int return_p
= 0;
2032 static char *prev_prefix
= "";
2033 static char *prev_suffix
= "";
2035 if (*string
== '\n')
2038 /* If the prefix is changing, print the previous suffix, a new line,
2039 and the new prefix. */
2040 if ((return_p
|| (strcmp (prev_prefix
, prefix
) != 0)) && !new_line
)
2042 fputs_unfiltered (prev_suffix
, gdb_stdlog
);
2043 fputs_unfiltered ("\n", gdb_stdlog
);
2044 fputs_unfiltered (prefix
, gdb_stdlog
);
2047 /* Print prefix if we printed a newline during the previous call. */
2051 fputs_unfiltered (prefix
, gdb_stdlog
);
2054 prev_prefix
= prefix
;
2055 prev_suffix
= suffix
;
2057 /* Output characters in a printable format. */
2058 while ((ch
= *string
++) != '\0')
2064 fputc_unfiltered (ch
, gdb_stdlog
);
2067 fprintf_unfiltered (gdb_stdlog
, "\\x%02x", ch
& 0xff);
2071 fputs_unfiltered ("\\\\", gdb_stdlog
);
2074 fputs_unfiltered ("\\b", gdb_stdlog
);
2077 fputs_unfiltered ("\\f", gdb_stdlog
);
2081 fputs_unfiltered ("\\n", gdb_stdlog
);
2084 fputs_unfiltered ("\\r", gdb_stdlog
);
2087 fputs_unfiltered ("\\t", gdb_stdlog
);
2090 fputs_unfiltered ("\\v", gdb_stdlog
);
2094 return_p
= ch
== '\r';
2097 /* Print suffix if we printed a newline. */
2100 fputs_unfiltered (suffix
, gdb_stdlog
);
2101 fputs_unfiltered ("\n", gdb_stdlog
);
2106 /* Print a variable number of ARGS using format FORMAT. If this
2107 information is going to put the amount written (since the last call
2108 to REINITIALIZE_MORE_FILTER or the last page break) over the page size,
2109 call prompt_for_continue to get the users permision to continue.
2111 Unlike fprintf, this function does not return a value.
2113 We implement three variants, vfprintf (takes a vararg list and stream),
2114 fprintf (takes a stream to write on), and printf (the usual).
2116 Note also that a longjmp to top level may occur in this routine
2117 (since prompt_for_continue may do so) so this routine should not be
2118 called when cleanups are not in place. */
2121 vfprintf_maybe_filtered (struct ui_file
*stream
, const char *format
,
2122 va_list args
, int filter
)
2125 struct cleanup
*old_cleanups
;
2127 xvasprintf (&linebuffer
, format
, args
);
2128 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2129 fputs_maybe_filtered (linebuffer
, stream
, filter
);
2130 do_cleanups (old_cleanups
);
2135 vfprintf_filtered (struct ui_file
*stream
, const char *format
, va_list args
)
2137 vfprintf_maybe_filtered (stream
, format
, args
, 1);
2141 vfprintf_unfiltered (struct ui_file
*stream
, const char *format
, va_list args
)
2144 struct cleanup
*old_cleanups
;
2146 xvasprintf (&linebuffer
, format
, args
);
2147 old_cleanups
= make_cleanup (xfree
, linebuffer
);
2148 fputs_unfiltered (linebuffer
, stream
);
2149 do_cleanups (old_cleanups
);
2153 vprintf_filtered (const char *format
, va_list args
)
2155 vfprintf_maybe_filtered (gdb_stdout
, format
, args
, 1);
2159 vprintf_unfiltered (const char *format
, va_list args
)
2161 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2165 fprintf_filtered (struct ui_file
*stream
, const char *format
, ...)
2168 va_start (args
, format
);
2169 vfprintf_filtered (stream
, format
, args
);
2174 fprintf_unfiltered (struct ui_file
*stream
, const char *format
, ...)
2177 va_start (args
, format
);
2178 vfprintf_unfiltered (stream
, format
, args
);
2182 /* Like fprintf_filtered, but prints its result indented.
2183 Called as fprintfi_filtered (spaces, stream, format, ...); */
2186 fprintfi_filtered (int spaces
, struct ui_file
*stream
, const char *format
,
2190 va_start (args
, format
);
2191 print_spaces_filtered (spaces
, stream
);
2193 vfprintf_filtered (stream
, format
, args
);
2199 printf_filtered (const char *format
, ...)
2202 va_start (args
, format
);
2203 vfprintf_filtered (gdb_stdout
, format
, args
);
2209 printf_unfiltered (const char *format
, ...)
2212 va_start (args
, format
);
2213 vfprintf_unfiltered (gdb_stdout
, format
, args
);
2217 /* Like printf_filtered, but prints it's result indented.
2218 Called as printfi_filtered (spaces, format, ...); */
2221 printfi_filtered (int spaces
, const char *format
, ...)
2224 va_start (args
, format
);
2225 print_spaces_filtered (spaces
, gdb_stdout
);
2226 vfprintf_filtered (gdb_stdout
, format
, args
);
2230 /* Easy -- but watch out!
2232 This routine is *not* a replacement for puts()! puts() appends a newline.
2233 This one doesn't, and had better not! */
2236 puts_filtered (const char *string
)
2238 fputs_filtered (string
, gdb_stdout
);
2242 puts_unfiltered (const char *string
)
2244 fputs_unfiltered (string
, gdb_stdout
);
2247 /* Return a pointer to N spaces and a null. The pointer is good
2248 until the next call to here. */
2253 static char *spaces
= 0;
2254 static int max_spaces
= -1;
2260 spaces
= (char *) xmalloc (n
+ 1);
2261 for (t
= spaces
+ n
; t
!= spaces
;)
2267 return spaces
+ max_spaces
- n
;
2270 /* Print N spaces. */
2272 print_spaces_filtered (int n
, struct ui_file
*stream
)
2274 fputs_filtered (n_spaces (n
), stream
);
2277 /* C++/ObjC demangler stuff. */
2279 /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language
2280 LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
2281 If the name is not mangled, or the language for the name is unknown, or
2282 demangling is off, the name is printed in its "raw" form. */
2285 fprintf_symbol_filtered (struct ui_file
*stream
, char *name
,
2286 enum language lang
, int arg_mode
)
2292 /* If user wants to see raw output, no problem. */
2295 fputs_filtered (name
, stream
);
2299 demangled
= language_demangle (language_def (lang
), name
, arg_mode
);
2300 fputs_filtered (demangled
? demangled
: name
, stream
);
2301 if (demangled
!= NULL
)
2309 /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any
2310 differences in whitespace. Returns 0 if they match, non-zero if they
2311 don't (slightly different than strcmp()'s range of return values).
2313 As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO".
2314 This "feature" is useful when searching for matching C++ function names
2315 (such as if the user types 'break FOO', where FOO is a mangled C++
2319 strcmp_iw (const char *string1
, const char *string2
)
2321 while ((*string1
!= '\0') && (*string2
!= '\0'))
2323 while (isspace (*string1
))
2327 while (isspace (*string2
))
2331 if (*string1
!= *string2
)
2335 if (*string1
!= '\0')
2341 return (*string1
!= '\0' && *string1
!= '(') || (*string2
!= '\0');
2344 /* This is like strcmp except that it ignores whitespace and treats
2345 '(' as the first non-NULL character in terms of ordering. Like
2346 strcmp (and unlike strcmp_iw), it returns negative if STRING1 <
2347 STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2
2348 according to that ordering.
2350 If a list is sorted according to this function and if you want to
2351 find names in the list that match some fixed NAME according to
2352 strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
2353 where this function would put NAME.
2355 Here are some examples of why using strcmp to sort is a bad idea:
2359 Say your partial symtab contains: "foo<char *>", "goo". Then, if
2360 we try to do a search for "foo<char*>", strcmp will locate this
2361 after "foo<char *>" and before "goo". Then lookup_partial_symbol
2362 will start looking at strings beginning with "goo", and will never
2363 see the correct match of "foo<char *>".
2365 Parenthesis example:
2367 In practice, this is less like to be an issue, but I'll give it a
2368 shot. Let's assume that '$' is a legitimate character to occur in
2369 symbols. (Which may well even be the case on some systems.) Then
2370 say that the partial symbol table contains "foo$" and "foo(int)".
2371 strcmp will put them in this order, since '$' < '('. Now, if the
2372 user searches for "foo", then strcmp will sort "foo" before "foo$".
2373 Then lookup_partial_symbol will notice that strcmp_iw("foo$",
2374 "foo") is false, so it won't proceed to the actual match of
2375 "foo(int)" with "foo". */
2378 strcmp_iw_ordered (const char *string1
, const char *string2
)
2380 while ((*string1
!= '\0') && (*string2
!= '\0'))
2382 while (isspace (*string1
))
2386 while (isspace (*string2
))
2390 if (*string1
!= *string2
)
2394 if (*string1
!= '\0')
2403 /* Characters are non-equal unless they're both '\0'; we want to
2404 make sure we get the comparison right according to our
2405 comparison in the cases where one of them is '\0' or '('. */
2407 if (*string2
== '\0')
2412 if (*string2
== '\0')
2417 if (*string2
== '(')
2420 return *string1
- *string2
;
2424 /* A simple comparison function with opposite semantics to strcmp. */
2427 streq (const char *lhs
, const char *rhs
)
2429 return !strcmp (lhs
, rhs
);
2435 ** Answer whether string_to_compare is a full or partial match to
2436 ** template_string. The partial match must be in sequence starting
2440 subset_compare (char *string_to_compare
, char *template_string
)
2443 if (template_string
!= (char *) NULL
&& string_to_compare
!= (char *) NULL
2444 && strlen (string_to_compare
) <= strlen (template_string
))
2447 (template_string
, string_to_compare
, strlen (string_to_compare
)) == 0);
2454 static void pagination_on_command (char *arg
, int from_tty
);
2456 pagination_on_command (char *arg
, int from_tty
)
2458 pagination_enabled
= 1;
2461 static void pagination_on_command (char *arg
, int from_tty
);
2463 pagination_off_command (char *arg
, int from_tty
)
2465 pagination_enabled
= 0;
2470 initialize_utils (void)
2472 struct cmd_list_element
*c
;
2474 c
= add_set_cmd ("width", class_support
, var_uinteger
, &chars_per_line
,
2475 "Set number of characters gdb thinks are in a line.",
2477 add_show_from_set (c
, &showlist
);
2478 set_cmd_sfunc (c
, set_width_command
);
2480 c
= add_set_cmd ("height", class_support
, var_uinteger
, &lines_per_page
,
2481 "Set number of lines gdb thinks are in a page.", &setlist
);
2482 add_show_from_set (c
, &showlist
);
2483 set_cmd_sfunc (c
, set_height_command
);
2488 (add_set_cmd ("demangle", class_support
, var_boolean
,
2490 "Set demangling of encoded C++/ObjC names when displaying symbols.",
2491 &setprintlist
), &showprintlist
);
2494 (add_set_cmd ("pagination", class_support
,
2495 var_boolean
, (char *) &pagination_enabled
,
2496 "Set state of pagination.", &setlist
), &showlist
);
2500 add_com ("am", class_support
, pagination_on_command
,
2501 "Enable pagination");
2502 add_com ("sm", class_support
, pagination_off_command
,
2503 "Disable pagination");
2507 (add_set_cmd ("sevenbit-strings", class_support
, var_boolean
,
2508 (char *) &sevenbit_strings
,
2509 "Set printing of 8-bit characters in strings as \\nnn.",
2510 &setprintlist
), &showprintlist
);
2513 (add_set_cmd ("asm-demangle", class_support
, var_boolean
,
2514 (char *) &asm_demangle
,
2515 "Set demangling of C++/ObjC names in disassembly listings.",
2516 &setprintlist
), &showprintlist
);
2519 /* Machine specific function to handle SIGWINCH signal. */
2521 #ifdef SIGWINCH_HANDLER_BODY
2522 SIGWINCH_HANDLER_BODY
2524 /* print routines to handle variable size regs, etc. */
2525 /* temporary storage using circular buffer */
2531 static char buf
[NUMCELLS
][CELLSIZE
];
2532 static int cell
= 0;
2533 if (++cell
>= NUMCELLS
)
2541 return (TARGET_ADDR_BIT
/ 8 * 2);
2545 paddr (CORE_ADDR addr
)
2547 return phex (addr
, TARGET_ADDR_BIT
/ 8);
2551 paddr_nz (CORE_ADDR addr
)
2553 return phex_nz (addr
, TARGET_ADDR_BIT
/ 8);
2557 decimal2str (char *paddr_str
, char *sign
, ULONGEST addr
)
2559 /* steal code from valprint.c:print_decimal(). Should this worry
2560 about the real size of addr as the above does? */
2561 unsigned long temp
[3];
2565 temp
[i
] = addr
% (1000 * 1000 * 1000);
2566 addr
/= (1000 * 1000 * 1000);
2569 while (addr
!= 0 && i
< (sizeof (temp
) / sizeof (temp
[0])));
2573 sprintf (paddr_str
, "%s%lu", sign
, temp
[0]);
2576 sprintf (paddr_str
, "%s%lu%09lu", sign
, temp
[1], temp
[0]);
2579 sprintf (paddr_str
, "%s%lu%09lu%09lu", sign
, temp
[2], temp
[1], temp
[0]);
2582 internal_error (__FILE__
, __LINE__
,
2583 "failed internal consistency check");
2588 paddr_u (CORE_ADDR addr
)
2590 char *paddr_str
= get_cell ();
2591 decimal2str (paddr_str
, "", addr
);
2596 paddr_d (LONGEST addr
)
2598 char *paddr_str
= get_cell ();
2600 decimal2str (paddr_str
, "-", -addr
);
2602 decimal2str (paddr_str
, "", addr
);
2606 /* eliminate warning from compiler on 32-bit systems */
2607 static int thirty_two
= 32;
2610 phex (ULONGEST l
, int sizeof_l
)
2617 sprintf (str
, "%08lx%08lx",
2618 (unsigned long) (l
>> thirty_two
),
2619 (unsigned long) (l
& 0xffffffff));
2623 sprintf (str
, "%08lx", (unsigned long) l
);
2627 sprintf (str
, "%04x", (unsigned short) (l
& 0xffff));
2630 str
= phex (l
, sizeof (l
));
2637 phex_nz (ULONGEST l
, int sizeof_l
)
2644 unsigned long high
= (unsigned long) (l
>> thirty_two
);
2647 sprintf (str
, "%lx", (unsigned long) (l
& 0xffffffff));
2649 sprintf (str
, "%lx%08lx", high
, (unsigned long) (l
& 0xffffffff));
2654 sprintf (str
, "%lx", (unsigned long) l
);
2658 sprintf (str
, "%x", (unsigned short) (l
& 0xffff));
2661 str
= phex_nz (l
, sizeof (l
));
2668 /* Convert a CORE_ADDR into a string. */
2670 core_addr_to_string (const CORE_ADDR addr
)
2672 char *str
= get_cell ();
2674 strcat (str
, phex (addr
, sizeof (addr
)));
2679 core_addr_to_string_nz (const CORE_ADDR addr
)
2681 char *str
= get_cell ();
2683 strcat (str
, phex_nz (addr
, sizeof (addr
)));
2687 /* Convert a string back into a CORE_ADDR. */
2689 string_to_core_addr (const char *my_string
)
2692 if (my_string
[0] == '0' && tolower (my_string
[1]) == 'x')
2694 /* Assume that it is in decimal. */
2696 for (i
= 2; my_string
[i
] != '\0'; i
++)
2698 if (isdigit (my_string
[i
]))
2699 addr
= (my_string
[i
] - '0') + (addr
* 16);
2700 else if (isxdigit (my_string
[i
]))
2701 addr
= (tolower (my_string
[i
]) - 'a' + 0xa) + (addr
* 16);
2703 internal_error (__FILE__
, __LINE__
, "invalid hex");
2708 /* Assume that it is in decimal. */
2710 for (i
= 0; my_string
[i
] != '\0'; i
++)
2712 if (isdigit (my_string
[i
]))
2713 addr
= (my_string
[i
] - '0') + (addr
* 10);
2715 internal_error (__FILE__
, __LINE__
, "invalid decimal");
2722 gdb_realpath (const char *filename
)
2724 /* Method 1: The system has a compile time upper bound on a filename
2725 path. Use that and realpath() to canonicalize the name. This is
2726 the most common case. Note that, if there isn't a compile time
2727 upper bound, you want to avoid realpath() at all costs. */
2728 #if defined(HAVE_REALPATH)
2730 # if defined (PATH_MAX)
2732 # define USE_REALPATH
2733 # elif defined (MAXPATHLEN)
2734 char buf
[MAXPATHLEN
];
2735 # define USE_REALPATH
2737 # if defined (USE_REALPATH)
2738 const char *rp
= realpath (filename
, buf
);
2741 return xstrdup (rp
);
2744 #endif /* HAVE_REALPATH */
2746 /* Method 2: The host system (i.e., GNU) has the function
2747 canonicalize_file_name() which malloc's a chunk of memory and
2748 returns that, use that. */
2749 #if defined(HAVE_CANONICALIZE_FILE_NAME)
2751 char *rp
= canonicalize_file_name (filename
);
2753 return xstrdup (filename
);
2759 /* FIXME: cagney/2002-11-13:
2761 Method 2a: Use realpath() with a NULL buffer. Some systems, due
2762 to the problems described in in method 3, have modified their
2763 realpath() implementation so that it will allocate a buffer when
2764 NULL is passed in. Before this can be used, though, some sort of
2765 configure time test would need to be added. Otherwize the code
2766 will likely core dump. */
2768 /* Method 3: Now we're getting desperate! The system doesn't have a
2769 compile time buffer size and no alternative function. Query the
2770 OS, using pathconf(), for the buffer limit. Care is needed
2771 though, some systems do not limit PATH_MAX (return -1 for
2772 pathconf()) making it impossible to pass a correctly sized buffer
2773 to realpath() (it could always overflow). On those systems, we
2775 #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
2777 /* Find out the max path size. */
2778 long path_max
= pathconf ("/", _PC_PATH_MAX
);
2781 /* PATH_MAX is bounded. */
2782 char *buf
= alloca (path_max
);
2783 char *rp
= realpath (filename
, buf
);
2784 return xstrdup (rp
? rp
: filename
);
2789 /* This system is a lost cause, just dup the buffer. */
2790 return xstrdup (filename
);
2793 /* Return a copy of FILENAME, with its directory prefix canonicalized
2797 xfullpath (const char *filename
)
2799 const char *base_name
= lbasename (filename
);
2804 /* Extract the basename of filename, and return immediately
2805 a copy of filename if it does not contain any directory prefix. */
2806 if (base_name
== filename
)
2807 return xstrdup (filename
);
2809 dir_name
= alloca ((size_t) (base_name
- filename
+ 2));
2810 /* Allocate enough space to store the dir_name + plus one extra
2811 character sometimes needed under Windows (see below), and
2812 then the closing \000 character */
2813 strncpy (dir_name
, filename
, base_name
- filename
);
2814 dir_name
[base_name
- filename
] = '\000';
2816 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2817 /* We need to be careful when filename is of the form 'd:foo', which
2818 is equivalent of d:./foo, which is totally different from d:/foo. */
2819 if (strlen (dir_name
) == 2 && isalpha (dir_name
[0]) && dir_name
[1] == ':')
2822 dir_name
[3] = '\000';
2826 /* Canonicalize the directory prefix, and build the resulting
2827 filename. If the dirname realpath already contains an ending
2828 directory separator, avoid doubling it. */
2829 real_path
= gdb_realpath (dir_name
);
2830 if (IS_DIR_SEPARATOR (real_path
[strlen (real_path
) - 1]))
2831 result
= concat (real_path
, base_name
, NULL
);
2833 result
= concat (real_path
, SLASH_STRING
, base_name
, NULL
);
2840 /* This is the 32-bit CRC function used by the GNU separate debug
2841 facility. An executable may contain a section named
2842 .gnu_debuglink, which holds the name of a separate executable file
2843 containing its debug info, and a checksum of that file's contents,
2844 computed using this function. */
2846 gnu_debuglink_crc32 (unsigned long crc
, unsigned char *buf
, size_t len
)
2848 static const unsigned long crc32_table
[256] = {
2849 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
2850 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
2851 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
2852 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
2853 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
2854 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
2855 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
2856 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
2857 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
2858 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
2859 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
2860 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
2861 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
2862 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
2863 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
2864 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
2865 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
2866 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
2867 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
2868 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
2869 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
2870 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
2871 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
2872 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
2873 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
2874 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
2875 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
2876 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
2877 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
2878 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
2879 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
2880 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
2881 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
2882 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
2883 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
2884 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
2885 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
2886 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
2887 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
2888 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
2889 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
2890 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
2891 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
2892 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
2893 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
2894 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
2895 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
2896 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
2897 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
2898 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
2899 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
2904 crc
= ~crc
& 0xffffffff;
2905 for (end
= buf
+ len
; buf
< end
; ++buf
)
2906 crc
= crc32_table
[(crc
^ *buf
) & 0xff] ^ (crc
>> 8);
2907 return ~crc
& 0xffffffff;;
2911 align_up (ULONGEST v
, int n
)
2913 /* Check that N is really a power of two. */
2914 gdb_assert (n
&& (n
& (n
-1)) == 0);
2915 return (v
+ n
- 1) & -n
;
2919 align_down (ULONGEST v
, int n
)
2921 /* Check that N is really a power of two. */
2922 gdb_assert (n
&& (n
& (n
-1)) == 0);