1 /* General utility routines for GDB, the GNU debugger.
3 Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
4 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
5 Free Software Foundation, Inc.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 #include "gdb_assert.h"
25 #include "gdb_string.h"
26 #include "event-top.h"
27 #include "exceptions.h"
30 #include "tui/tui.h" /* For tui_get_command_dimension. */
37 /* SunOS's curses.h has a '#define reg register' in it. Thank you Sun. */
48 #include "expression.h"
52 #include "filenames.h"
54 #include "gdb_obstack.h"
58 #include "inferior.h" /* for signed_pointer_to_address */
60 #include <sys/param.h> /* For MAXPATHLEN */
62 #include "gdb_curses.h"
64 #include "readline/readline.h"
70 extern PTR malloc (); /* OK: PTR */
72 #if !HAVE_DECL_REALLOC
73 extern PTR realloc (); /* OK: PTR */
79 /* readline defines this. */
82 void (*deprecated_error_begin_hook) (void);
84 /* Prototypes for local functions */
86 static void vfprintf_maybe_filtered (struct ui_file *, const char *,
87 va_list, int) ATTR_FORMAT (printf, 2, 0);
89 static void fputs_maybe_filtered (const char *, struct ui_file *, int);
91 static void do_my_cleanups (struct cleanup **, struct cleanup *);
93 static void prompt_for_continue (void);
95 static void set_screen_size (void);
96 static void set_width (void);
98 /* A flag indicating whether to timestamp debugging messages. */
100 static int debug_timestamp = 0;
102 /* Chain of cleanup actions established with make_cleanup,
103 to be executed if an error happens. */
105 static struct cleanup *cleanup_chain; /* cleaned up after a failed command */
106 static struct cleanup *final_cleanup_chain; /* cleaned up when gdb exits */
108 /* Pointer to what is left to do for an execution command after the
109 target stops. Used only in asynchronous mode, by targets that
110 support async execution. The finish and until commands use it. So
111 does the target extended-remote command. */
112 struct continuation *cmd_continuation;
113 struct continuation *intermediate_continuation;
115 /* Nonzero if we have job control. */
119 /* Nonzero means a quit has been requested. */
123 /* Nonzero means quit immediately if Control-C is typed now, rather
124 than waiting until QUIT is executed. Be careful in setting this;
125 code which executes with immediate_quit set has to be very careful
126 about being able to deal with being interrupted at any time. It is
127 almost always better to use QUIT; the only exception I can think of
128 is being able to quit out of a system call (using EINTR loses if
129 the SIGINT happens between the previous QUIT and the system call).
130 To immediately quit in the case in which a SIGINT happens between
131 the previous QUIT and setting immediate_quit (desirable anytime we
132 expect to block), call QUIT after setting immediate_quit. */
136 /* Nonzero means that encoded C++/ObjC names should be printed out in their
137 C++/ObjC form rather than raw. */
141 show_demangle (struct ui_file *file, int from_tty,
142 struct cmd_list_element *c, const char *value)
144 fprintf_filtered (file, _("\
145 Demangling of encoded C++/ObjC names when displaying symbols is %s.\n"),
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 show_asm_demangle (struct ui_file *file, int from_tty,
156 struct cmd_list_element *c, const char *value)
158 fprintf_filtered (file, _("\
159 Demangling of C++/ObjC names in disassembly listings is %s.\n"),
163 /* Nonzero means that strings with character values >0x7F should be printed
164 as octal escapes. Zero means just print the value (e.g. it's an
165 international character, and the terminal or window can cope.) */
167 int sevenbit_strings = 0;
169 show_sevenbit_strings (struct ui_file *file, int from_tty,
170 struct cmd_list_element *c, const char *value)
172 fprintf_filtered (file, _("\
173 Printing of 8-bit characters in strings as \\nnn is %s.\n"),
177 /* String to be printed before error messages, if any. */
179 char *error_pre_print;
181 /* String to be printed before quit messages, if any. */
183 char *quit_pre_print;
185 /* String to be printed before warning messages, if any. */
187 char *warning_pre_print = "\nwarning: ";
189 int pagination_enabled = 1;
191 show_pagination_enabled (struct ui_file *file, int from_tty,
192 struct cmd_list_element *c, const char *value)
194 fprintf_filtered (file, _("State of pagination is %s.\n"), value);
199 /* Add a new cleanup to the cleanup_chain,
200 and return the previous chain pointer
201 to be passed later to do_cleanups or discard_cleanups.
202 Args are FUNCTION to clean up with, and ARG to pass to it. */
205 make_cleanup (make_cleanup_ftype *function, void *arg)
207 return make_my_cleanup (&cleanup_chain, function, arg);
211 make_cleanup_dtor (make_cleanup_ftype *function, void *arg,
212 void (*dtor) (void *))
214 return make_my_cleanup2 (&cleanup_chain,
215 function, arg, dtor);
219 make_final_cleanup (make_cleanup_ftype *function, void *arg)
221 return make_my_cleanup (&final_cleanup_chain, function, arg);
225 do_freeargv (void *arg)
227 freeargv ((char **) arg);
231 make_cleanup_freeargv (char **arg)
233 return make_my_cleanup (&cleanup_chain, do_freeargv, arg);
237 do_bfd_close_cleanup (void *arg)
243 make_cleanup_bfd_close (bfd *abfd)
245 return make_cleanup (do_bfd_close_cleanup, abfd);
249 do_close_cleanup (void *arg)
257 make_cleanup_close (int fd)
259 int *saved_fd = xmalloc (sizeof (fd));
261 return make_cleanup (do_close_cleanup, saved_fd);
265 do_ui_file_delete (void *arg)
267 ui_file_delete (arg);
271 make_cleanup_ui_file_delete (struct ui_file *arg)
273 return make_my_cleanup (&cleanup_chain, do_ui_file_delete, arg);
277 do_free_section_addr_info (void *arg)
279 free_section_addr_info (arg);
283 make_cleanup_free_section_addr_info (struct section_addr_info *addrs)
285 return make_my_cleanup (&cleanup_chain, do_free_section_addr_info, addrs);
288 struct restore_integer_closure
295 restore_integer (void *p)
297 struct restore_integer_closure *closure = p;
298 *(closure->variable) = closure->value;
301 /* Remember the current value of *VARIABLE and make it restored when the cleanup
304 make_cleanup_restore_integer (int *variable)
306 struct restore_integer_closure *c =
307 xmalloc (sizeof (struct restore_integer_closure));
308 c->variable = variable;
309 c->value = *variable;
311 return make_my_cleanup2 (&cleanup_chain, restore_integer, (void *)c,
316 make_my_cleanup2 (struct cleanup **pmy_chain, make_cleanup_ftype *function,
317 void *arg, void (*free_arg) (void *))
320 = (struct cleanup *) xmalloc (sizeof (struct cleanup));
321 struct cleanup *old_chain = *pmy_chain;
323 new->next = *pmy_chain;
324 new->function = function;
325 new->free_arg = free_arg;
333 make_my_cleanup (struct cleanup **pmy_chain, make_cleanup_ftype *function,
336 return make_my_cleanup2 (pmy_chain, function, arg, NULL);
339 /* Discard cleanups and do the actions they describe
340 until we get back to the point OLD_CHAIN in the cleanup_chain. */
343 do_cleanups (struct cleanup *old_chain)
345 do_my_cleanups (&cleanup_chain, old_chain);
349 do_final_cleanups (struct cleanup *old_chain)
351 do_my_cleanups (&final_cleanup_chain, old_chain);
355 do_my_cleanups (struct cleanup **pmy_chain,
356 struct cleanup *old_chain)
359 while ((ptr = *pmy_chain) != old_chain)
361 *pmy_chain = ptr->next; /* Do this first incase recursion */
362 (*ptr->function) (ptr->arg);
364 (*ptr->free_arg) (ptr->arg);
369 /* Discard cleanups, not doing the actions they describe,
370 until we get back to the point OLD_CHAIN in the cleanup_chain. */
373 discard_cleanups (struct cleanup *old_chain)
375 discard_my_cleanups (&cleanup_chain, old_chain);
379 discard_final_cleanups (struct cleanup *old_chain)
381 discard_my_cleanups (&final_cleanup_chain, old_chain);
385 discard_my_cleanups (struct cleanup **pmy_chain,
386 struct cleanup *old_chain)
389 while ((ptr = *pmy_chain) != old_chain)
391 *pmy_chain = ptr->next;
393 (*ptr->free_arg) (ptr->arg);
398 /* Set the cleanup_chain to 0, and return the old cleanup chain. */
402 return save_my_cleanups (&cleanup_chain);
406 save_final_cleanups (void)
408 return save_my_cleanups (&final_cleanup_chain);
412 save_my_cleanups (struct cleanup **pmy_chain)
414 struct cleanup *old_chain = *pmy_chain;
420 /* Restore the cleanup chain from a previously saved chain. */
422 restore_cleanups (struct cleanup *chain)
424 restore_my_cleanups (&cleanup_chain, chain);
428 restore_final_cleanups (struct cleanup *chain)
430 restore_my_cleanups (&final_cleanup_chain, chain);
434 restore_my_cleanups (struct cleanup **pmy_chain, struct cleanup *chain)
439 /* This function is useful for cleanups.
443 old_chain = make_cleanup (free_current_contents, &foo);
445 to arrange to free the object thus allocated. */
448 free_current_contents (void *ptr)
450 void **location = ptr;
451 if (location == NULL)
452 internal_error (__FILE__, __LINE__,
453 _("free_current_contents: NULL pointer"));
454 if (*location != NULL)
461 /* Provide a known function that does nothing, to use as a base for
462 for a possibly long chain of cleanups. This is useful where we
463 use the cleanup chain for handling normal cleanups as well as dealing
464 with cleanups that need to be done as a result of a call to error().
465 In such cases, we may not be certain where the first cleanup is, unless
466 we have a do-nothing one to always use as the base. */
469 null_cleanup (void *arg)
473 /* Add a continuation to the continuation list, the global list
474 cmd_continuation. The new continuation will be added at the front.*/
476 add_continuation (void (*continuation_hook) (void *, int), void *args)
478 struct continuation *continuation_ptr;
481 (struct continuation *) xmalloc (sizeof (struct continuation));
482 continuation_ptr->continuation_hook = continuation_hook;
483 continuation_ptr->args = args;
484 continuation_ptr->next = cmd_continuation;
485 cmd_continuation = continuation_ptr;
488 /* Walk down the cmd_continuation list, and execute all the
489 continuations. There is a problem though. In some cases new
490 continuations may be added while we are in the middle of this
491 loop. If this happens they will be added in the front, and done
492 before we have a chance of exhausting those that were already
493 there. We need to then save the beginning of the list in a pointer
494 and do the continuations from there on, instead of using the
495 global beginning of list as our iteration pointer. */
497 do_all_continuations (int error)
499 struct continuation *continuation_ptr;
500 struct continuation *saved_continuation;
502 /* Copy the list header into another pointer, and set the global
503 list header to null, so that the global list can change as a side
504 effect of invoking the continuations and the processing of
505 the preexisting continuations will not be affected. */
506 continuation_ptr = cmd_continuation;
507 cmd_continuation = NULL;
509 /* Work now on the list we have set aside. */
510 while (continuation_ptr)
512 (continuation_ptr->continuation_hook) (continuation_ptr->args, error);
513 saved_continuation = continuation_ptr;
514 continuation_ptr = continuation_ptr->next;
515 xfree (saved_continuation);
519 /* Walk down the cmd_continuation list, and get rid of all the
522 discard_all_continuations (void)
524 struct continuation *continuation_ptr;
526 while (cmd_continuation)
528 continuation_ptr = cmd_continuation;
529 cmd_continuation = continuation_ptr->next;
530 xfree (continuation_ptr);
534 /* Add a continuation to the continuation list, the global list
535 intermediate_continuation. The new continuation will be added at
538 add_intermediate_continuation (void (*continuation_hook)
539 (void *, int), void *args)
541 struct continuation *continuation_ptr;
544 (struct continuation *) xmalloc (sizeof (struct continuation));
545 continuation_ptr->continuation_hook = continuation_hook;
546 continuation_ptr->args = args;
547 continuation_ptr->next = intermediate_continuation;
548 intermediate_continuation = continuation_ptr;
551 /* Walk down the cmd_continuation list, and execute all the
552 continuations. There is a problem though. In some cases new
553 continuations may be added while we are in the middle of this
554 loop. If this happens they will be added in the front, and done
555 before we have a chance of exhausting those that were already
556 there. We need to then save the beginning of the list in a pointer
557 and do the continuations from there on, instead of using the
558 global beginning of list as our iteration pointer.*/
560 do_all_intermediate_continuations (int error)
562 struct continuation *continuation_ptr;
563 struct continuation *saved_continuation;
565 /* Copy the list header into another pointer, and set the global
566 list header to null, so that the global list can change as a side
567 effect of invoking the continuations and the processing of
568 the preexisting continuations will not be affected. */
569 continuation_ptr = intermediate_continuation;
570 intermediate_continuation = NULL;
572 /* Work now on the list we have set aside. */
573 while (continuation_ptr)
575 (continuation_ptr->continuation_hook) (continuation_ptr->args, error);
576 saved_continuation = continuation_ptr;
577 continuation_ptr = continuation_ptr->next;
578 xfree (saved_continuation);
582 /* Walk down the cmd_continuation list, and get rid of all the
585 discard_all_intermediate_continuations (void)
587 struct continuation *continuation_ptr;
589 while (intermediate_continuation)
591 continuation_ptr = intermediate_continuation;
592 intermediate_continuation = continuation_ptr->next;
593 xfree (continuation_ptr);
599 /* Print a warning message. The first argument STRING is the warning
600 message, used as an fprintf format string, the second is the
601 va_list of arguments for that string. A warning is unfiltered (not
602 paginated) so that the user does not need to page through each
603 screen full of warnings when there are lots of them. */
606 vwarning (const char *string, va_list args)
608 if (deprecated_warning_hook)
609 (*deprecated_warning_hook) (string, args);
612 target_terminal_ours ();
613 wrap_here (""); /* Force out any buffered output */
614 gdb_flush (gdb_stdout);
615 if (warning_pre_print)
616 fputs_unfiltered (warning_pre_print, gdb_stderr);
617 vfprintf_unfiltered (gdb_stderr, string, args);
618 fprintf_unfiltered (gdb_stderr, "\n");
623 /* Print a warning message.
624 The first argument STRING is the warning message, used as a fprintf string,
625 and the remaining args are passed as arguments to it.
626 The primary difference between warnings and errors is that a warning
627 does not force the return to command level. */
630 warning (const char *string, ...)
633 va_start (args, string);
634 vwarning (string, args);
638 /* Print an error message and return to command level.
639 The first argument STRING is the error message, used as a fprintf string,
640 and the remaining args are passed as arguments to it. */
643 verror (const char *string, va_list args)
645 throw_verror (GENERIC_ERROR, string, args);
649 error (const char *string, ...)
652 va_start (args, string);
653 throw_verror (GENERIC_ERROR, string, args);
657 /* Print an error message and quit.
658 The first argument STRING is the error message, used as a fprintf string,
659 and the remaining args are passed as arguments to it. */
662 vfatal (const char *string, va_list args)
664 throw_vfatal (string, args);
668 fatal (const char *string, ...)
671 va_start (args, string);
672 throw_vfatal (string, args);
677 error_stream (struct ui_file *stream)
680 char *message = ui_file_xstrdup (stream, &len);
681 make_cleanup (xfree, message);
682 error (("%s"), message);
685 /* Print a message reporting an internal error/warning. Ask the user
686 if they want to continue, dump core, or just exit. Return
687 something to indicate a quit. */
689 struct internal_problem
692 /* FIXME: cagney/2002-08-15: There should be ``maint set/show''
693 commands available for controlling these variables. */
694 enum auto_boolean should_quit;
695 enum auto_boolean should_dump_core;
698 /* Report a problem, internal to GDB, to the user. Once the problem
699 has been reported, and assuming GDB didn't quit, the caller can
700 either allow execution to resume or throw an error. */
702 static void ATTR_FORMAT (printf, 4, 0)
703 internal_vproblem (struct internal_problem *problem,
704 const char *file, int line, const char *fmt, va_list ap)
711 /* Don't allow infinite error/warning recursion. */
713 static char msg[] = "Recursive internal problem.\n";
721 fputs_unfiltered (msg, gdb_stderr);
722 abort (); /* NOTE: GDB has only three calls to abort(). */
725 write (STDERR_FILENO, msg, sizeof (msg));
730 /* Try to get the message out and at the start of a new line. */
731 target_terminal_ours ();
734 /* Create a string containing the full error/warning message. Need
735 to call query with this full string, as otherwize the reason
736 (error/warning) and question become separated. Format using a
737 style similar to a compiler error message. Include extra detail
738 so that the user knows that they are living on the edge. */
741 msg = xstrvprintf (fmt, ap);
742 reason = xstrprintf ("\
744 A problem internal to GDB has been detected,\n\
745 further debugging may prove unreliable.", file, line, problem->name, msg);
747 make_cleanup (xfree, reason);
750 switch (problem->should_quit)
752 case AUTO_BOOLEAN_AUTO:
753 /* Default (yes/batch case) is to quit GDB. When in batch mode
754 this lessens the likelhood of GDB going into an infinate
756 quit_p = query (_("%s\nQuit this debugging session? "), reason);
758 case AUTO_BOOLEAN_TRUE:
761 case AUTO_BOOLEAN_FALSE:
765 internal_error (__FILE__, __LINE__, _("bad switch"));
768 switch (problem->should_dump_core)
770 case AUTO_BOOLEAN_AUTO:
771 /* Default (yes/batch case) is to dump core. This leaves a GDB
772 `dropping' so that it is easier to see that something went
774 dump_core_p = query (_("%s\nCreate a core file of GDB? "), reason);
777 case AUTO_BOOLEAN_TRUE:
780 case AUTO_BOOLEAN_FALSE:
784 internal_error (__FILE__, __LINE__, _("bad switch"));
790 abort (); /* NOTE: GDB has only three calls to abort(). */
798 #ifdef HAVE_WORKING_FORK
800 abort (); /* NOTE: GDB has only three calls to abort(). */
808 static struct internal_problem internal_error_problem = {
809 "internal-error", AUTO_BOOLEAN_AUTO, AUTO_BOOLEAN_AUTO
813 internal_verror (const char *file, int line, const char *fmt, va_list ap)
815 internal_vproblem (&internal_error_problem, file, line, fmt, ap);
816 deprecated_throw_reason (RETURN_ERROR);
820 internal_error (const char *file, int line, const char *string, ...)
823 va_start (ap, string);
824 internal_verror (file, line, string, ap);
828 static struct internal_problem internal_warning_problem = {
829 "internal-warning", AUTO_BOOLEAN_AUTO, AUTO_BOOLEAN_AUTO
833 internal_vwarning (const char *file, int line, const char *fmt, va_list ap)
835 internal_vproblem (&internal_warning_problem, file, line, fmt, ap);
839 internal_warning (const char *file, int line, const char *string, ...)
842 va_start (ap, string);
843 internal_vwarning (file, line, string, ap);
847 /* Print the system error message for errno, and also mention STRING
848 as the file name for which the error was encountered.
849 Then return to command level. */
852 perror_with_name (const char *string)
857 err = safe_strerror (errno);
858 combined = (char *) alloca (strlen (err) + strlen (string) + 3);
859 strcpy (combined, string);
860 strcat (combined, ": ");
861 strcat (combined, err);
863 /* I understand setting these is a matter of taste. Still, some people
864 may clear errno but not know about bfd_error. Doing this here is not
866 bfd_set_error (bfd_error_no_error);
869 error (_("%s."), combined);
872 /* Print the system error message for ERRCODE, and also mention STRING
873 as the file name for which the error was encountered. */
876 print_sys_errmsg (const char *string, int errcode)
881 err = safe_strerror (errcode);
882 combined = (char *) alloca (strlen (err) + strlen (string) + 3);
883 strcpy (combined, string);
884 strcat (combined, ": ");
885 strcat (combined, err);
887 /* We want anything which was printed on stdout to come out first, before
889 gdb_flush (gdb_stdout);
890 fprintf_unfiltered (gdb_stderr, "%s.\n", combined);
893 /* Control C eventually causes this to be called, at a convenient time. */
899 /* No steenking SIGINT will ever be coming our way when the
900 program is resumed. Don't lie. */
904 /* If there is no terminal switching for this target, then we can't
905 possibly get screwed by the lack of job control. */
906 || current_target.to_terminal_ours == NULL)
909 fatal ("Quit (expect signal SIGINT when the program is resumed)");
914 /* Called when a memory allocation fails, with the number of bytes of
915 memory requested in SIZE. */
922 internal_error (__FILE__, __LINE__,
923 _("virtual memory exhausted: can't allocate %ld bytes."),
928 internal_error (__FILE__, __LINE__, _("virtual memory exhausted."));
932 /* The xmalloc() (libiberty.h) family of memory management routines.
934 These are like the ISO-C malloc() family except that they implement
935 consistent semantics and guard against typical memory management
938 /* NOTE: These are declared using PTR to ensure consistency with
939 "libiberty.h". xfree() is GDB local. */
942 xmalloc (size_t size)
946 /* See libiberty/xmalloc.c. This function need's to match that's
947 semantics. It never returns NULL. */
951 val = malloc (size); /* OK: malloc */
959 xzalloc (size_t size)
961 return xcalloc (1, size);
965 xrealloc (PTR ptr, size_t size) /* OK: PTR */
969 /* See libiberty/xmalloc.c. This function need's to match that's
970 semantics. It never returns NULL. */
975 val = realloc (ptr, size); /* OK: realloc */
977 val = malloc (size); /* OK: malloc */
985 xcalloc (size_t number, size_t size)
989 /* See libiberty/xmalloc.c. This function need's to match that's
990 semantics. It never returns NULL. */
991 if (number == 0 || size == 0)
997 mem = calloc (number, size); /* OK: xcalloc */
999 nomem (number * size);
1008 free (ptr); /* OK: free */
1012 /* Like asprintf/vasprintf but get an internal_error if the call
1016 xstrprintf (const char *format, ...)
1020 va_start (args, format);
1021 ret = xstrvprintf (format, args);
1027 xasprintf (char **ret, const char *format, ...)
1030 va_start (args, format);
1031 (*ret) = xstrvprintf (format, args);
1036 xvasprintf (char **ret, const char *format, va_list ap)
1038 (*ret) = xstrvprintf (format, ap);
1042 xstrvprintf (const char *format, va_list ap)
1045 int status = vasprintf (&ret, format, ap);
1046 /* NULL is returned when there was a memory allocation problem, or
1047 any other error (for instance, a bad format string). A negative
1048 status (the printed length) with a non-NULL buffer should never
1049 happen, but just to be sure. */
1050 if (ret == NULL || status < 0)
1051 internal_error (__FILE__, __LINE__, _("vasprintf call failed"));
1056 xsnprintf (char *str, size_t size, const char *format, ...)
1061 va_start (args, format);
1062 ret = vsnprintf (str, size, format, args);
1063 gdb_assert (ret < size);
1069 /* My replacement for the read system call.
1070 Used like `read' but keeps going if `read' returns too soon. */
1073 myread (int desc, char *addr, int len)
1080 val = read (desc, addr, len);
1084 return orglen - len;
1091 /* Make a copy of the string at PTR with SIZE characters
1092 (and add a null character at the end in the copy).
1093 Uses malloc to get the space. Returns the address of the copy. */
1096 savestring (const char *ptr, size_t size)
1098 char *p = (char *) xmalloc (size + 1);
1099 memcpy (p, ptr, size);
1105 print_spaces (int n, struct ui_file *file)
1107 fputs_unfiltered (n_spaces (n), file);
1110 /* Print a host address. */
1113 gdb_print_host_address (const void *addr, struct ui_file *stream)
1116 /* We could use the %p conversion specifier to fprintf if we had any
1117 way of knowing whether this host supports it. But the following
1118 should work on the Alpha and on 32 bit machines. */
1120 fprintf_filtered (stream, "0x%lx", (unsigned long) addr);
1124 /* This function supports the query, nquery, and yquery functions.
1125 Ask user a y-or-n question and return 0 if answer is no, 1 if
1126 answer is yes, or default the answer to the specified default
1127 (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a
1128 default answer, or '\0' for no default.
1129 CTLSTR is the control string and should end in "? ". It should
1130 not say how to answer, because we do that.
1131 ARGS are the arguments passed along with the CTLSTR argument to
1134 static int ATTR_FORMAT (printf, 1, 0)
1135 defaulted_query (const char *ctlstr, const char defchar, va_list args)
1141 char def_answer, not_def_answer;
1142 char *y_string, *n_string, *question;
1144 /* Set up according to which answer is the default. */
1145 if (defchar == '\0')
1149 not_def_answer = 'N';
1153 else if (defchar == 'y')
1157 not_def_answer = 'N';
1165 not_def_answer = 'Y';
1170 /* Automatically answer the default value if the user did not want
1175 /* If input isn't coming from the user directly, just say what
1176 question we're asking, and then answer "yes" automatically. This
1177 way, important error messages don't get lost when talking to GDB
1179 if (! input_from_terminal_p ())
1182 vfprintf_filtered (gdb_stdout, ctlstr, args);
1184 printf_filtered (_("(%s or %s) [answered %c; input not from terminal]\n"),
1185 y_string, n_string, def_answer);
1186 gdb_flush (gdb_stdout);
1191 /* Automatically answer the default value if input is not from the user
1192 directly, or if the user did not want prompts. */
1193 if (!input_from_terminal_p () || !caution)
1196 if (deprecated_query_hook)
1198 return deprecated_query_hook (ctlstr, args);
1201 /* Format the question outside of the loop, to avoid reusing args. */
1202 question = xstrvprintf (ctlstr, args);
1206 wrap_here (""); /* Flush any buffered output */
1207 gdb_flush (gdb_stdout);
1209 if (annotation_level > 1)
1210 printf_filtered (("\n\032\032pre-query\n"));
1212 fputs_filtered (question, gdb_stdout);
1213 printf_filtered (_("(%s or %s) "), y_string, n_string);
1215 if (annotation_level > 1)
1216 printf_filtered (("\n\032\032query\n"));
1219 gdb_flush (gdb_stdout);
1221 answer = fgetc (stdin);
1222 clearerr (stdin); /* in case of C-d */
1223 if (answer == EOF) /* C-d */
1225 printf_filtered ("EOF [assumed %c]\n", def_answer);
1229 /* Eat rest of input line, to EOF or newline */
1233 ans2 = fgetc (stdin);
1236 while (ans2 != EOF && ans2 != '\n' && ans2 != '\r');
1240 /* Check answer. For the non-default, the user must specify
1241 the non-default explicitly. */
1242 if (answer == not_def_answer)
1244 retval = !def_value;
1247 /* Otherwise, if a default was specified, the user may either
1248 specify the required input or have it default by entering
1250 if (answer == def_answer
1251 || (defchar != '\0' &&
1252 (answer == '\n' || answer == '\r' || answer == EOF)))
1257 /* Invalid entries are not defaulted and require another selection. */
1258 printf_filtered (_("Please answer %s or %s.\n"),
1259 y_string, n_string);
1263 if (annotation_level > 1)
1264 printf_filtered (("\n\032\032post-query\n"));
1269 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1270 answer is yes, or 0 if answer is defaulted.
1271 Takes three args which are given to printf to print the question.
1272 The first, a control string, should end in "? ".
1273 It should not say how to answer, because we do that. */
1276 nquery (const char *ctlstr, ...)
1280 va_start (args, ctlstr);
1281 return defaulted_query (ctlstr, 'n', args);
1285 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1286 answer is yes, or 1 if answer is defaulted.
1287 Takes three args which are given to printf to print the question.
1288 The first, a control string, should end in "? ".
1289 It should not say how to answer, because we do that. */
1292 yquery (const char *ctlstr, ...)
1296 va_start (args, ctlstr);
1297 return defaulted_query (ctlstr, 'y', args);
1301 /* Ask user a y-or-n question and return 1 iff answer is yes.
1302 Takes three args which are given to printf to print the question.
1303 The first, a control string, should end in "? ".
1304 It should not say how to answer, because we do that. */
1307 query (const char *ctlstr, ...)
1311 va_start (args, ctlstr);
1312 return defaulted_query (ctlstr, '\0', args);
1316 /* Print an error message saying that we couldn't make sense of a
1317 \^mumble sequence in a string or character constant. START and END
1318 indicate a substring of some larger string that contains the
1319 erroneous backslash sequence, missing the initial backslash. */
1321 no_control_char_error (const char *start, const char *end)
1323 int len = end - start;
1324 char *copy = alloca (end - start + 1);
1326 memcpy (copy, start, len);
1329 error (_("There is no control character `\\%s' in the `%s' character set."),
1330 copy, target_charset ());
1333 /* Parse a C escape sequence. STRING_PTR points to a variable
1334 containing a pointer to the string to parse. That pointer
1335 should point to the character after the \. That pointer
1336 is updated past the characters we use. The value of the
1337 escape sequence is returned.
1339 A negative value means the sequence \ newline was seen,
1340 which is supposed to be equivalent to nothing at all.
1342 If \ is followed by a null character, we return a negative
1343 value and leave the string pointer pointing at the null character.
1345 If \ is followed by 000, we return 0 and leave the string pointer
1346 after the zeros. A value of 0 does not mean end of string. */
1349 parse_escape (char **string_ptr)
1352 int c = *(*string_ptr)++;
1353 if (c_parse_backslash (c, &target_char))
1365 /* Remember where this escape sequence started, for reporting
1367 char *sequence_start_pos = *string_ptr - 1;
1369 c = *(*string_ptr)++;
1373 /* XXXCHARSET: What is `delete' in the host character set? */
1376 if (!host_char_to_target (c, &target_char))
1377 error (_("There is no character corresponding to `Delete' "
1378 "in the target character set `%s'."), host_charset ());
1383 target_char = parse_escape (string_ptr);
1386 if (!host_char_to_target (c, &target_char))
1387 no_control_char_error (sequence_start_pos, *string_ptr);
1390 /* Now target_char is something like `c', and we want to find
1391 its control-character equivalent. */
1392 if (!target_char_to_control_char (target_char, &target_char))
1393 no_control_char_error (sequence_start_pos, *string_ptr);
1398 /* XXXCHARSET: we need to use isdigit and value-of-digit
1399 methods of the host character set here. */
1415 if (c >= '0' && c <= '7')
1429 if (!host_char_to_target (c, &target_char))
1431 ("The escape sequence `\%c' is equivalent to plain `%c', which"
1432 " has no equivalent\n" "in the `%s' character set.", c, c,
1438 /* Print the character C on STREAM as part of the contents of a literal
1439 string whose delimiter is QUOTER. Note that this routine should only
1440 be call for printing things which are independent of the language
1441 of the program being debugged. */
1444 printchar (int c, void (*do_fputs) (const char *, struct ui_file *),
1445 void (*do_fprintf) (struct ui_file *, const char *, ...)
1446 ATTRIBUTE_FPTR_PRINTF_2, struct ui_file *stream, int quoter)
1449 c &= 0xFF; /* Avoid sign bit follies */
1451 if (c < 0x20 || /* Low control chars */
1452 (c >= 0x7F && c < 0xA0) || /* DEL, High controls */
1453 (sevenbit_strings && c >= 0x80))
1454 { /* high order bit set */
1458 do_fputs ("\\n", stream);
1461 do_fputs ("\\b", stream);
1464 do_fputs ("\\t", stream);
1467 do_fputs ("\\f", stream);
1470 do_fputs ("\\r", stream);
1473 do_fputs ("\\e", stream);
1476 do_fputs ("\\a", stream);
1479 do_fprintf (stream, "\\%.3o", (unsigned int) c);
1485 if (c == '\\' || c == quoter)
1486 do_fputs ("\\", stream);
1487 do_fprintf (stream, "%c", c);
1491 /* Print the character C on STREAM as part of the contents of a
1492 literal string whose delimiter is QUOTER. Note that these routines
1493 should only be call for printing things which are independent of
1494 the language of the program being debugged. */
1497 fputstr_filtered (const char *str, int quoter, struct ui_file *stream)
1500 printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter);
1504 fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream)
1507 printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter);
1511 fputstrn_filtered (const char *str, int n, int quoter,
1512 struct ui_file *stream)
1515 for (i = 0; i < n; i++)
1516 printchar (str[i], fputs_filtered, fprintf_filtered, stream, quoter);
1520 fputstrn_unfiltered (const char *str, int n, int quoter,
1521 struct ui_file *stream)
1524 for (i = 0; i < n; i++)
1525 printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter);
1529 /* Number of lines per page or UINT_MAX if paging is disabled. */
1530 static unsigned int lines_per_page;
1532 show_lines_per_page (struct ui_file *file, int from_tty,
1533 struct cmd_list_element *c, const char *value)
1535 fprintf_filtered (file, _("\
1536 Number of lines gdb thinks are in a page is %s.\n"),
1540 /* Number of chars per line or UINT_MAX if line folding is disabled. */
1541 static unsigned int chars_per_line;
1543 show_chars_per_line (struct ui_file *file, int from_tty,
1544 struct cmd_list_element *c, const char *value)
1546 fprintf_filtered (file, _("\
1547 Number of characters gdb thinks are in a line is %s.\n"),
1551 /* Current count of lines printed on this page, chars on this line. */
1552 static unsigned int lines_printed, chars_printed;
1554 /* Buffer and start column of buffered text, for doing smarter word-
1555 wrapping. When someone calls wrap_here(), we start buffering output
1556 that comes through fputs_filtered(). If we see a newline, we just
1557 spit it out and forget about the wrap_here(). If we see another
1558 wrap_here(), we spit it out and remember the newer one. If we see
1559 the end of the line, we spit out a newline, the indent, and then
1560 the buffered output. */
1562 /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which
1563 are waiting to be output (they have already been counted in chars_printed).
1564 When wrap_buffer[0] is null, the buffer is empty. */
1565 static char *wrap_buffer;
1567 /* Pointer in wrap_buffer to the next character to fill. */
1568 static char *wrap_pointer;
1570 /* String to indent by if the wrap occurs. Must not be NULL if wrap_column
1572 static char *wrap_indent;
1574 /* Column number on the screen where wrap_buffer begins, or 0 if wrapping
1575 is not in effect. */
1576 static int wrap_column;
1579 /* Inialize the number of lines per page and chars per line. */
1582 init_page_info (void)
1585 if (!tui_get_command_dimension (&chars_per_line, &lines_per_page))
1590 #if defined(__GO32__)
1591 rows = ScreenRows ();
1592 cols = ScreenCols ();
1593 lines_per_page = rows;
1594 chars_per_line = cols;
1596 /* Make sure Readline has initialized its terminal settings. */
1597 rl_reset_terminal (NULL);
1599 /* Get the screen size from Readline. */
1600 rl_get_screen_size (&rows, &cols);
1601 lines_per_page = rows;
1602 chars_per_line = cols;
1604 /* Readline should have fetched the termcap entry for us. */
1605 if (tgetnum ("li") < 0 || getenv ("EMACS"))
1607 /* The number of lines per page is not mentioned in the
1608 terminal description. This probably means that paging is
1609 not useful (e.g. emacs shell window), so disable paging. */
1610 lines_per_page = UINT_MAX;
1613 /* FIXME: Get rid of this junk. */
1614 #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
1615 SIGWINCH_HANDLER (SIGWINCH);
1618 /* If the output is not a terminal, don't paginate it. */
1619 if (!ui_file_isatty (gdb_stdout))
1620 lines_per_page = UINT_MAX;
1628 /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */
1631 set_screen_size (void)
1633 int rows = lines_per_page;
1634 int cols = chars_per_line;
1642 /* Update Readline's idea of the terminal size. */
1643 rl_set_screen_size (rows, cols);
1646 /* Reinitialize WRAP_BUFFER according to the current value of
1652 if (chars_per_line == 0)
1657 wrap_buffer = (char *) xmalloc (chars_per_line + 2);
1658 wrap_buffer[0] = '\0';
1661 wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2);
1662 wrap_pointer = wrap_buffer; /* Start it at the beginning. */
1666 set_width_command (char *args, int from_tty, struct cmd_list_element *c)
1673 set_height_command (char *args, int from_tty, struct cmd_list_element *c)
1678 /* Wait, so the user can read what's on the screen. Prompt the user
1679 to continue by pressing RETURN. */
1682 prompt_for_continue (void)
1685 char cont_prompt[120];
1687 if (annotation_level > 1)
1688 printf_unfiltered (("\n\032\032pre-prompt-for-continue\n"));
1690 strcpy (cont_prompt,
1691 "---Type <return> to continue, or q <return> to quit---");
1692 if (annotation_level > 1)
1693 strcat (cont_prompt, "\n\032\032prompt-for-continue\n");
1695 /* We must do this *before* we call gdb_readline, else it will eventually
1696 call us -- thinking that we're trying to print beyond the end of the
1698 reinitialize_more_filter ();
1701 /* On a real operating system, the user can quit with SIGINT.
1704 'q' is provided on all systems so users don't have to change habits
1705 from system to system, and because telling them what to do in
1706 the prompt is more user-friendly than expecting them to think of
1708 /* Call readline, not gdb_readline, because GO32 readline handles control-C
1709 whereas control-C to gdb_readline will cause the user to get dumped
1711 ignore = gdb_readline_wrapper (cont_prompt);
1713 if (annotation_level > 1)
1714 printf_unfiltered (("\n\032\032post-prompt-for-continue\n"));
1719 while (*p == ' ' || *p == '\t')
1722 async_request_quit (0);
1727 /* Now we have to do this again, so that GDB will know that it doesn't
1728 need to save the ---Type <return>--- line at the top of the screen. */
1729 reinitialize_more_filter ();
1731 dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */
1734 /* Reinitialize filter; ie. tell it to reset to original values. */
1737 reinitialize_more_filter (void)
1743 /* Indicate that if the next sequence of characters overflows the line,
1744 a newline should be inserted here rather than when it hits the end.
1745 If INDENT is non-null, it is a string to be printed to indent the
1746 wrapped part on the next line. INDENT must remain accessible until
1747 the next call to wrap_here() or until a newline is printed through
1750 If the line is already overfull, we immediately print a newline and
1751 the indentation, and disable further wrapping.
1753 If we don't know the width of lines, but we know the page height,
1754 we must not wrap words, but should still keep track of newlines
1755 that were explicitly printed.
1757 INDENT should not contain tabs, as that will mess up the char count
1758 on the next line. FIXME.
1760 This routine is guaranteed to force out any output which has been
1761 squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be
1762 used to force out output from the wrap_buffer. */
1765 wrap_here (char *indent)
1767 /* This should have been allocated, but be paranoid anyway. */
1769 internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
1773 *wrap_pointer = '\0';
1774 fputs_unfiltered (wrap_buffer, gdb_stdout);
1776 wrap_pointer = wrap_buffer;
1777 wrap_buffer[0] = '\0';
1778 if (chars_per_line == UINT_MAX) /* No line overflow checking */
1782 else if (chars_printed >= chars_per_line)
1784 puts_filtered ("\n");
1786 puts_filtered (indent);
1791 wrap_column = chars_printed;
1795 wrap_indent = indent;
1799 /* Print input string to gdb_stdout, filtered, with wrap,
1800 arranging strings in columns of n chars. String can be
1801 right or left justified in the column. Never prints
1802 trailing spaces. String should never be longer than
1803 width. FIXME: this could be useful for the EXAMINE
1804 command, which currently doesn't tabulate very well */
1807 puts_filtered_tabular (char *string, int width, int right)
1813 gdb_assert (chars_per_line > 0);
1814 if (chars_per_line == UINT_MAX)
1816 fputs_filtered (string, gdb_stdout);
1817 fputs_filtered ("\n", gdb_stdout);
1821 if (((chars_printed - 1) / width + 2) * width >= chars_per_line)
1822 fputs_filtered ("\n", gdb_stdout);
1824 if (width >= chars_per_line)
1825 width = chars_per_line - 1;
1827 stringlen = strlen (string);
1829 if (chars_printed > 0)
1830 spaces = width - (chars_printed - 1) % width - 1;
1832 spaces += width - stringlen;
1834 spacebuf = alloca (spaces + 1);
1835 spacebuf[spaces] = '\0';
1837 spacebuf[spaces] = ' ';
1839 fputs_filtered (spacebuf, gdb_stdout);
1840 fputs_filtered (string, gdb_stdout);
1844 /* Ensure that whatever gets printed next, using the filtered output
1845 commands, starts at the beginning of the line. I.E. if there is
1846 any pending output for the current line, flush it and start a new
1847 line. Otherwise do nothing. */
1852 if (chars_printed > 0)
1854 puts_filtered ("\n");
1859 /* Like fputs but if FILTER is true, pause after every screenful.
1861 Regardless of FILTER can wrap at points other than the final
1862 character of a line.
1864 Unlike fputs, fputs_maybe_filtered does not return a value.
1865 It is OK for LINEBUFFER to be NULL, in which case just don't print
1868 Note that a longjmp to top level may occur in this routine (only if
1869 FILTER is true) (since prompt_for_continue may do so) so this
1870 routine should not be called when cleanups are not in place. */
1873 fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream,
1876 const char *lineptr;
1878 if (linebuffer == 0)
1881 /* Don't do any filtering if it is disabled. */
1882 if ((stream != gdb_stdout) || !pagination_enabled
1883 || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX))
1885 fputs_unfiltered (linebuffer, stream);
1889 /* Go through and output each character. Show line extension
1890 when this is necessary; prompt user for new page when this is
1893 lineptr = linebuffer;
1896 /* Possible new page. */
1897 if (filter && (lines_printed >= lines_per_page - 1))
1898 prompt_for_continue ();
1900 while (*lineptr && *lineptr != '\n')
1902 /* Print a single line. */
1903 if (*lineptr == '\t')
1906 *wrap_pointer++ = '\t';
1908 fputc_unfiltered ('\t', stream);
1909 /* Shifting right by 3 produces the number of tab stops
1910 we have already passed, and then adding one and
1911 shifting left 3 advances to the next tab stop. */
1912 chars_printed = ((chars_printed >> 3) + 1) << 3;
1918 *wrap_pointer++ = *lineptr;
1920 fputc_unfiltered (*lineptr, stream);
1925 if (chars_printed >= chars_per_line)
1927 unsigned int save_chars = chars_printed;
1931 /* If we aren't actually wrapping, don't output newline --
1932 if chars_per_line is right, we probably just overflowed
1933 anyway; if it's wrong, let us keep going. */
1935 fputc_unfiltered ('\n', stream);
1937 /* Possible new page. */
1938 if (lines_printed >= lines_per_page - 1)
1939 prompt_for_continue ();
1941 /* Now output indentation and wrapped string */
1944 fputs_unfiltered (wrap_indent, stream);
1945 *wrap_pointer = '\0'; /* Null-terminate saved stuff */
1946 fputs_unfiltered (wrap_buffer, stream); /* and eject it */
1947 /* FIXME, this strlen is what prevents wrap_indent from
1948 containing tabs. However, if we recurse to print it
1949 and count its chars, we risk trouble if wrap_indent is
1950 longer than (the user settable) chars_per_line.
1951 Note also that this can set chars_printed > chars_per_line
1952 if we are printing a long string. */
1953 chars_printed = strlen (wrap_indent)
1954 + (save_chars - wrap_column);
1955 wrap_pointer = wrap_buffer; /* Reset buffer */
1956 wrap_buffer[0] = '\0';
1957 wrap_column = 0; /* And disable fancy wrap */
1962 if (*lineptr == '\n')
1965 wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */
1967 fputc_unfiltered ('\n', stream);
1974 fputs_filtered (const char *linebuffer, struct ui_file *stream)
1976 fputs_maybe_filtered (linebuffer, stream, 1);
1980 putchar_unfiltered (int c)
1983 ui_file_write (gdb_stdout, &buf, 1);
1987 /* Write character C to gdb_stdout using GDB's paging mechanism and return C.
1988 May return nonlocally. */
1991 putchar_filtered (int c)
1993 return fputc_filtered (c, gdb_stdout);
1997 fputc_unfiltered (int c, struct ui_file *stream)
2000 ui_file_write (stream, &buf, 1);
2005 fputc_filtered (int c, struct ui_file *stream)
2011 fputs_filtered (buf, stream);
2015 /* puts_debug is like fputs_unfiltered, except it prints special
2016 characters in printable fashion. */
2019 puts_debug (char *prefix, char *string, char *suffix)
2023 /* Print prefix and suffix after each line. */
2024 static int new_line = 1;
2025 static int return_p = 0;
2026 static char *prev_prefix = "";
2027 static char *prev_suffix = "";
2029 if (*string == '\n')
2032 /* If the prefix is changing, print the previous suffix, a new line,
2033 and the new prefix. */
2034 if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line)
2036 fputs_unfiltered (prev_suffix, gdb_stdlog);
2037 fputs_unfiltered ("\n", gdb_stdlog);
2038 fputs_unfiltered (prefix, gdb_stdlog);
2041 /* Print prefix if we printed a newline during the previous call. */
2045 fputs_unfiltered (prefix, gdb_stdlog);
2048 prev_prefix = prefix;
2049 prev_suffix = suffix;
2051 /* Output characters in a printable format. */
2052 while ((ch = *string++) != '\0')
2058 fputc_unfiltered (ch, gdb_stdlog);
2061 fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff);
2065 fputs_unfiltered ("\\\\", gdb_stdlog);
2068 fputs_unfiltered ("\\b", gdb_stdlog);
2071 fputs_unfiltered ("\\f", gdb_stdlog);
2075 fputs_unfiltered ("\\n", gdb_stdlog);
2078 fputs_unfiltered ("\\r", gdb_stdlog);
2081 fputs_unfiltered ("\\t", gdb_stdlog);
2084 fputs_unfiltered ("\\v", gdb_stdlog);
2088 return_p = ch == '\r';
2091 /* Print suffix if we printed a newline. */
2094 fputs_unfiltered (suffix, gdb_stdlog);
2095 fputs_unfiltered ("\n", gdb_stdlog);
2100 /* Print a variable number of ARGS using format FORMAT. If this
2101 information is going to put the amount written (since the last call
2102 to REINITIALIZE_MORE_FILTER or the last page break) over the page size,
2103 call prompt_for_continue to get the users permision to continue.
2105 Unlike fprintf, this function does not return a value.
2107 We implement three variants, vfprintf (takes a vararg list and stream),
2108 fprintf (takes a stream to write on), and printf (the usual).
2110 Note also that a longjmp to top level may occur in this routine
2111 (since prompt_for_continue may do so) so this routine should not be
2112 called when cleanups are not in place. */
2115 vfprintf_maybe_filtered (struct ui_file *stream, const char *format,
2116 va_list args, int filter)
2119 struct cleanup *old_cleanups;
2121 linebuffer = xstrvprintf (format, args);
2122 old_cleanups = make_cleanup (xfree, linebuffer);
2123 fputs_maybe_filtered (linebuffer, stream, filter);
2124 do_cleanups (old_cleanups);
2129 vfprintf_filtered (struct ui_file *stream, const char *format, va_list args)
2131 vfprintf_maybe_filtered (stream, format, args, 1);
2135 vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args)
2138 struct cleanup *old_cleanups;
2140 linebuffer = xstrvprintf (format, args);
2141 old_cleanups = make_cleanup (xfree, linebuffer);
2142 if (debug_timestamp && stream == gdb_stdlog)
2147 gettimeofday (&tm, NULL);
2148 timestamp = xstrprintf ("%ld:%ld ", (long) tm.tv_sec, (long) tm.tv_usec);
2149 make_cleanup (xfree, timestamp);
2150 fputs_unfiltered (timestamp, stream);
2152 fputs_unfiltered (linebuffer, stream);
2153 do_cleanups (old_cleanups);
2157 vprintf_filtered (const char *format, va_list args)
2159 vfprintf_maybe_filtered (gdb_stdout, format, args, 1);
2163 vprintf_unfiltered (const char *format, va_list args)
2165 vfprintf_unfiltered (gdb_stdout, format, args);
2169 fprintf_filtered (struct ui_file *stream, const char *format, ...)
2172 va_start (args, format);
2173 vfprintf_filtered (stream, format, args);
2178 fprintf_unfiltered (struct ui_file *stream, const char *format, ...)
2181 va_start (args, format);
2182 vfprintf_unfiltered (stream, format, args);
2186 /* Like fprintf_filtered, but prints its result indented.
2187 Called as fprintfi_filtered (spaces, stream, format, ...); */
2190 fprintfi_filtered (int spaces, struct ui_file *stream, const char *format,
2194 va_start (args, format);
2195 print_spaces_filtered (spaces, stream);
2197 vfprintf_filtered (stream, format, args);
2203 printf_filtered (const char *format, ...)
2206 va_start (args, format);
2207 vfprintf_filtered (gdb_stdout, format, args);
2213 printf_unfiltered (const char *format, ...)
2216 va_start (args, format);
2217 vfprintf_unfiltered (gdb_stdout, format, args);
2221 /* Like printf_filtered, but prints it's result indented.
2222 Called as printfi_filtered (spaces, format, ...); */
2225 printfi_filtered (int spaces, const char *format, ...)
2228 va_start (args, format);
2229 print_spaces_filtered (spaces, gdb_stdout);
2230 vfprintf_filtered (gdb_stdout, format, args);
2234 /* Easy -- but watch out!
2236 This routine is *not* a replacement for puts()! puts() appends a newline.
2237 This one doesn't, and had better not! */
2240 puts_filtered (const char *string)
2242 fputs_filtered (string, gdb_stdout);
2246 puts_unfiltered (const char *string)
2248 fputs_unfiltered (string, gdb_stdout);
2251 /* Return a pointer to N spaces and a null. The pointer is good
2252 until the next call to here. */
2257 static char *spaces = 0;
2258 static int max_spaces = -1;
2264 spaces = (char *) xmalloc (n + 1);
2265 for (t = spaces + n; t != spaces;)
2271 return spaces + max_spaces - n;
2274 /* Print N spaces. */
2276 print_spaces_filtered (int n, struct ui_file *stream)
2278 fputs_filtered (n_spaces (n), stream);
2281 /* C++/ObjC demangler stuff. */
2283 /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language
2284 LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
2285 If the name is not mangled, or the language for the name is unknown, or
2286 demangling is off, the name is printed in its "raw" form. */
2289 fprintf_symbol_filtered (struct ui_file *stream, char *name,
2290 enum language lang, int arg_mode)
2296 /* If user wants to see raw output, no problem. */
2299 fputs_filtered (name, stream);
2303 demangled = language_demangle (language_def (lang), name, arg_mode);
2304 fputs_filtered (demangled ? demangled : name, stream);
2305 if (demangled != NULL)
2313 /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any
2314 differences in whitespace. Returns 0 if they match, non-zero if they
2315 don't (slightly different than strcmp()'s range of return values).
2317 As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO".
2318 This "feature" is useful when searching for matching C++ function names
2319 (such as if the user types 'break FOO', where FOO is a mangled C++
2323 strcmp_iw (const char *string1, const char *string2)
2325 while ((*string1 != '\0') && (*string2 != '\0'))
2327 while (isspace (*string1))
2331 while (isspace (*string2))
2335 if (*string1 != *string2)
2339 if (*string1 != '\0')
2345 return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0');
2348 /* This is like strcmp except that it ignores whitespace and treats
2349 '(' as the first non-NULL character in terms of ordering. Like
2350 strcmp (and unlike strcmp_iw), it returns negative if STRING1 <
2351 STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2
2352 according to that ordering.
2354 If a list is sorted according to this function and if you want to
2355 find names in the list that match some fixed NAME according to
2356 strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
2357 where this function would put NAME.
2359 Here are some examples of why using strcmp to sort is a bad idea:
2363 Say your partial symtab contains: "foo<char *>", "goo". Then, if
2364 we try to do a search for "foo<char*>", strcmp will locate this
2365 after "foo<char *>" and before "goo". Then lookup_partial_symbol
2366 will start looking at strings beginning with "goo", and will never
2367 see the correct match of "foo<char *>".
2369 Parenthesis example:
2371 In practice, this is less like to be an issue, but I'll give it a
2372 shot. Let's assume that '$' is a legitimate character to occur in
2373 symbols. (Which may well even be the case on some systems.) Then
2374 say that the partial symbol table contains "foo$" and "foo(int)".
2375 strcmp will put them in this order, since '$' < '('. Now, if the
2376 user searches for "foo", then strcmp will sort "foo" before "foo$".
2377 Then lookup_partial_symbol will notice that strcmp_iw("foo$",
2378 "foo") is false, so it won't proceed to the actual match of
2379 "foo(int)" with "foo". */
2382 strcmp_iw_ordered (const char *string1, const char *string2)
2384 while ((*string1 != '\0') && (*string2 != '\0'))
2386 while (isspace (*string1))
2390 while (isspace (*string2))
2394 if (*string1 != *string2)
2398 if (*string1 != '\0')
2407 /* Characters are non-equal unless they're both '\0'; we want to
2408 make sure we get the comparison right according to our
2409 comparison in the cases where one of them is '\0' or '('. */
2411 if (*string2 == '\0')
2416 if (*string2 == '\0')
2421 if (*string2 == '(')
2424 return *string1 - *string2;
2428 /* A simple comparison function with opposite semantics to strcmp. */
2431 streq (const char *lhs, const char *rhs)
2433 return !strcmp (lhs, rhs);
2439 ** Answer whether string_to_compare is a full or partial match to
2440 ** template_string. The partial match must be in sequence starting
2444 subset_compare (char *string_to_compare, char *template_string)
2447 if (template_string != (char *) NULL && string_to_compare != (char *) NULL
2448 && strlen (string_to_compare) <= strlen (template_string))
2451 (template_string, string_to_compare, strlen (string_to_compare)) == 0);
2458 pagination_on_command (char *arg, int from_tty)
2460 pagination_enabled = 1;
2464 pagination_off_command (char *arg, int from_tty)
2466 pagination_enabled = 0;
2470 show_debug_timestamp (struct ui_file *file, int from_tty,
2471 struct cmd_list_element *c, const char *value)
2473 fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), value);
2478 initialize_utils (void)
2480 struct cmd_list_element *c;
2482 add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\
2483 Set number of characters gdb thinks are in a line."), _("\
2484 Show number of characters gdb thinks are in a line."), NULL,
2486 show_chars_per_line,
2487 &setlist, &showlist);
2489 add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\
2490 Set number of lines gdb thinks are in a page."), _("\
2491 Show number of lines gdb thinks are in a page."), NULL,
2493 show_lines_per_page,
2494 &setlist, &showlist);
2498 add_setshow_boolean_cmd ("demangle", class_support, &demangle, _("\
2499 Set demangling of encoded C++/ObjC names when displaying symbols."), _("\
2500 Show demangling of encoded C++/ObjC names when displaying symbols."), NULL,
2503 &setprintlist, &showprintlist);
2505 add_setshow_boolean_cmd ("pagination", class_support,
2506 &pagination_enabled, _("\
2507 Set state of pagination."), _("\
2508 Show state of pagination."), NULL,
2510 show_pagination_enabled,
2511 &setlist, &showlist);
2515 add_com ("am", class_support, pagination_on_command,
2516 _("Enable pagination"));
2517 add_com ("sm", class_support, pagination_off_command,
2518 _("Disable pagination"));
2521 add_setshow_boolean_cmd ("sevenbit-strings", class_support,
2522 &sevenbit_strings, _("\
2523 Set printing of 8-bit characters in strings as \\nnn."), _("\
2524 Show printing of 8-bit characters in strings as \\nnn."), NULL,
2526 show_sevenbit_strings,
2527 &setprintlist, &showprintlist);
2529 add_setshow_boolean_cmd ("asm-demangle", class_support, &asm_demangle, _("\
2530 Set demangling of C++/ObjC names in disassembly listings."), _("\
2531 Show demangling of C++/ObjC names in disassembly listings."), NULL,
2534 &setprintlist, &showprintlist);
2536 add_setshow_boolean_cmd ("timestamp", class_maintenance,
2537 &debug_timestamp, _("\
2538 Set timestamping of debugging messages."), _("\
2539 Show timestamping of debugging messages."), _("\
2540 When set, debugging messages will be marked with seconds and microseconds."),
2542 show_debug_timestamp,
2543 &setdebuglist, &showdebuglist);
2546 /* Machine specific function to handle SIGWINCH signal. */
2548 #ifdef SIGWINCH_HANDLER_BODY
2549 SIGWINCH_HANDLER_BODY
2551 /* print routines to handle variable size regs, etc. */
2552 /* temporary storage using circular buffer */
2558 static char buf[NUMCELLS][CELLSIZE];
2559 static int cell = 0;
2560 if (++cell >= NUMCELLS)
2568 return (gdbarch_addr_bit (current_gdbarch) / 8 * 2);
2572 paddr (CORE_ADDR addr)
2574 return phex (addr, gdbarch_addr_bit (current_gdbarch) / 8);
2578 paddr_nz (CORE_ADDR addr)
2580 return phex_nz (addr, gdbarch_addr_bit (current_gdbarch) / 8);
2584 paddress (CORE_ADDR addr)
2586 /* Truncate address to the size of a target address, avoiding shifts
2587 larger or equal than the width of a CORE_ADDR. The local
2588 variable ADDR_BIT stops the compiler reporting a shift overflow
2589 when it won't occur. */
2590 /* NOTE: This assumes that the significant address information is
2591 kept in the least significant bits of ADDR - the upper bits were
2592 either zero or sign extended. Should gdbarch_address_to_pointer or
2593 some ADDRESS_TO_PRINTABLE() be used to do the conversion? */
2595 int addr_bit = gdbarch_addr_bit (current_gdbarch);
2597 if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT))
2598 addr &= ((CORE_ADDR) 1 << addr_bit) - 1;
2599 return hex_string (addr);
2603 decimal2str (char *sign, ULONGEST addr, int width)
2605 /* Steal code from valprint.c:print_decimal(). Should this worry
2606 about the real size of addr as the above does? */
2607 unsigned long temp[3];
2608 char *str = get_cell ();
2613 temp[i] = addr % (1000 * 1000 * 1000);
2614 addr /= (1000 * 1000 * 1000);
2618 while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0])));
2627 xsnprintf (str, CELLSIZE, "%s%0*lu", sign, width, temp[0]);
2630 xsnprintf (str, CELLSIZE, "%s%0*lu%09lu", sign, width,
2634 xsnprintf (str, CELLSIZE, "%s%0*lu%09lu%09lu", sign, width,
2635 temp[2], temp[1], temp[0]);
2638 internal_error (__FILE__, __LINE__,
2639 _("failed internal consistency check"));
2646 octal2str (ULONGEST addr, int width)
2648 unsigned long temp[3];
2649 char *str = get_cell ();
2654 temp[i] = addr % (0100000 * 0100000);
2655 addr /= (0100000 * 0100000);
2659 while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0])));
2669 xsnprintf (str, CELLSIZE, "%*o", width, 0);
2671 xsnprintf (str, CELLSIZE, "0%0*lo", width, temp[0]);
2674 xsnprintf (str, CELLSIZE, "0%0*lo%010lo", width, temp[1], temp[0]);
2677 xsnprintf (str, CELLSIZE, "0%0*lo%010lo%010lo", width,
2678 temp[2], temp[1], temp[0]);
2681 internal_error (__FILE__, __LINE__,
2682 _("failed internal consistency check"));
2689 paddr_u (CORE_ADDR addr)
2691 return decimal2str ("", addr, 0);
2695 paddr_d (LONGEST addr)
2698 return decimal2str ("-", -addr, 0);
2700 return decimal2str ("", addr, 0);
2703 /* Eliminate warning from compiler on 32-bit systems. */
2704 static int thirty_two = 32;
2707 phex (ULONGEST l, int sizeof_l)
2715 xsnprintf (str, CELLSIZE, "%08lx%08lx",
2716 (unsigned long) (l >> thirty_two),
2717 (unsigned long) (l & 0xffffffff));
2721 xsnprintf (str, CELLSIZE, "%08lx", (unsigned long) l);
2725 xsnprintf (str, CELLSIZE, "%04x", (unsigned short) (l & 0xffff));
2728 str = phex (l, sizeof (l));
2736 phex_nz (ULONGEST l, int sizeof_l)
2744 unsigned long high = (unsigned long) (l >> thirty_two);
2747 xsnprintf (str, CELLSIZE, "%lx",
2748 (unsigned long) (l & 0xffffffff));
2750 xsnprintf (str, CELLSIZE, "%lx%08lx", high,
2751 (unsigned long) (l & 0xffffffff));
2756 xsnprintf (str, CELLSIZE, "%lx", (unsigned long) l);
2760 xsnprintf (str, CELLSIZE, "%x", (unsigned short) (l & 0xffff));
2763 str = phex_nz (l, sizeof (l));
2770 /* Converts a LONGEST to a C-format hexadecimal literal and stores it
2771 in a static string. Returns a pointer to this string. */
2773 hex_string (LONGEST num)
2775 char *result = get_cell ();
2776 xsnprintf (result, CELLSIZE, "0x%s", phex_nz (num, sizeof (num)));
2780 /* Converts a LONGEST number to a C-format hexadecimal literal and
2781 stores it in a static string. Returns a pointer to this string
2782 that is valid until the next call. The number is padded on the
2783 left with 0s to at least WIDTH characters. */
2785 hex_string_custom (LONGEST num, int width)
2787 char *result = get_cell ();
2788 char *result_end = result + CELLSIZE - 1;
2789 const char *hex = phex_nz (num, sizeof (num));
2790 int hex_len = strlen (hex);
2792 if (hex_len > width)
2794 if (width + 2 >= CELLSIZE)
2795 internal_error (__FILE__, __LINE__,
2796 _("hex_string_custom: insufficient space to store result"));
2798 strcpy (result_end - width - 2, "0x");
2799 memset (result_end - width, '0', width);
2800 strcpy (result_end - hex_len, hex);
2801 return result_end - width - 2;
2804 /* Convert VAL to a numeral in the given radix. For
2805 * radix 10, IS_SIGNED may be true, indicating a signed quantity;
2806 * otherwise VAL is interpreted as unsigned. If WIDTH is supplied,
2807 * it is the minimum width (0-padded if needed). USE_C_FORMAT means
2808 * to use C format in all cases. If it is false, then 'x'
2809 * and 'o' formats do not include a prefix (0x or leading 0). */
2812 int_string (LONGEST val, int radix, int is_signed, int width,
2821 result = hex_string (val);
2823 result = hex_string_custom (val, width);
2830 if (is_signed && val < 0)
2831 return decimal2str ("-", -val, width);
2833 return decimal2str ("", val, width);
2837 char *result = octal2str (val, width);
2838 if (use_c_format || val == 0)
2844 internal_error (__FILE__, __LINE__,
2845 _("failed internal consistency check"));
2849 /* Convert a CORE_ADDR into a string. */
2851 core_addr_to_string (const CORE_ADDR addr)
2853 char *str = get_cell ();
2855 strcat (str, phex (addr, sizeof (addr)));
2860 core_addr_to_string_nz (const CORE_ADDR addr)
2862 char *str = get_cell ();
2864 strcat (str, phex_nz (addr, sizeof (addr)));
2868 /* Convert a string back into a CORE_ADDR. */
2870 string_to_core_addr (const char *my_string)
2872 int addr_bit = gdbarch_addr_bit (current_gdbarch);
2875 if (my_string[0] == '0' && tolower (my_string[1]) == 'x')
2877 /* Assume that it is in hex. */
2879 for (i = 2; my_string[i] != '\0'; i++)
2881 if (isdigit (my_string[i]))
2882 addr = (my_string[i] - '0') + (addr * 16);
2883 else if (isxdigit (my_string[i]))
2884 addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16);
2886 error (_("invalid hex \"%s\""), my_string);
2889 /* Not very modular, but if the executable format expects
2890 addresses to be sign-extended, then do so if the address was
2891 specified with only 32 significant bits. Really this should
2892 be determined by the target architecture, not by the object
2894 if (i - 2 == addr_bit / 4
2896 && bfd_get_sign_extend_vma (exec_bfd))
2897 addr = (addr ^ ((CORE_ADDR) 1 << (addr_bit - 1)))
2898 - ((CORE_ADDR) 1 << (addr_bit - 1));
2902 /* Assume that it is in decimal. */
2904 for (i = 0; my_string[i] != '\0'; i++)
2906 if (isdigit (my_string[i]))
2907 addr = (my_string[i] - '0') + (addr * 10);
2909 error (_("invalid decimal \"%s\""), my_string);
2917 host_address_to_string (const void *addr)
2919 char *str = get_cell ();
2920 sprintf (str, "0x%lx", (unsigned long) addr);
2925 gdb_realpath (const char *filename)
2927 /* Method 1: The system has a compile time upper bound on a filename
2928 path. Use that and realpath() to canonicalize the name. This is
2929 the most common case. Note that, if there isn't a compile time
2930 upper bound, you want to avoid realpath() at all costs. */
2931 #if defined(HAVE_REALPATH)
2933 # if defined (PATH_MAX)
2935 # define USE_REALPATH
2936 # elif defined (MAXPATHLEN)
2937 char buf[MAXPATHLEN];
2938 # define USE_REALPATH
2940 # if defined (USE_REALPATH)
2941 const char *rp = realpath (filename, buf);
2944 return xstrdup (rp);
2947 #endif /* HAVE_REALPATH */
2949 /* Method 2: The host system (i.e., GNU) has the function
2950 canonicalize_file_name() which malloc's a chunk of memory and
2951 returns that, use that. */
2952 #if defined(HAVE_CANONICALIZE_FILE_NAME)
2954 char *rp = canonicalize_file_name (filename);
2956 return xstrdup (filename);
2962 /* FIXME: cagney/2002-11-13:
2964 Method 2a: Use realpath() with a NULL buffer. Some systems, due
2965 to the problems described in in method 3, have modified their
2966 realpath() implementation so that it will allocate a buffer when
2967 NULL is passed in. Before this can be used, though, some sort of
2968 configure time test would need to be added. Otherwize the code
2969 will likely core dump. */
2971 /* Method 3: Now we're getting desperate! The system doesn't have a
2972 compile time buffer size and no alternative function. Query the
2973 OS, using pathconf(), for the buffer limit. Care is needed
2974 though, some systems do not limit PATH_MAX (return -1 for
2975 pathconf()) making it impossible to pass a correctly sized buffer
2976 to realpath() (it could always overflow). On those systems, we
2978 #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
2980 /* Find out the max path size. */
2981 long path_max = pathconf ("/", _PC_PATH_MAX);
2984 /* PATH_MAX is bounded. */
2985 char *buf = alloca (path_max);
2986 char *rp = realpath (filename, buf);
2987 return xstrdup (rp ? rp : filename);
2992 /* This system is a lost cause, just dup the buffer. */
2993 return xstrdup (filename);
2996 /* Return a copy of FILENAME, with its directory prefix canonicalized
3000 xfullpath (const char *filename)
3002 const char *base_name = lbasename (filename);
3007 /* Extract the basename of filename, and return immediately
3008 a copy of filename if it does not contain any directory prefix. */
3009 if (base_name == filename)
3010 return xstrdup (filename);
3012 dir_name = alloca ((size_t) (base_name - filename + 2));
3013 /* Allocate enough space to store the dir_name + plus one extra
3014 character sometimes needed under Windows (see below), and
3015 then the closing \000 character */
3016 strncpy (dir_name, filename, base_name - filename);
3017 dir_name[base_name - filename] = '\000';
3019 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
3020 /* We need to be careful when filename is of the form 'd:foo', which
3021 is equivalent of d:./foo, which is totally different from d:/foo. */
3022 if (strlen (dir_name) == 2 && isalpha (dir_name[0]) && dir_name[1] == ':')
3025 dir_name[3] = '\000';
3029 /* Canonicalize the directory prefix, and build the resulting
3030 filename. If the dirname realpath already contains an ending
3031 directory separator, avoid doubling it. */
3032 real_path = gdb_realpath (dir_name);
3033 if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1]))
3034 result = concat (real_path, base_name, (char *)NULL);
3036 result = concat (real_path, SLASH_STRING, base_name, (char *)NULL);
3043 /* This is the 32-bit CRC function used by the GNU separate debug
3044 facility. An executable may contain a section named
3045 .gnu_debuglink, which holds the name of a separate executable file
3046 containing its debug info, and a checksum of that file's contents,
3047 computed using this function. */
3049 gnu_debuglink_crc32 (unsigned long crc, unsigned char *buf, size_t len)
3051 static const unsigned long crc32_table[256] = {
3052 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
3053 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
3054 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
3055 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
3056 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
3057 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
3058 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
3059 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
3060 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
3061 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
3062 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
3063 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
3064 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
3065 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
3066 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
3067 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
3068 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
3069 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
3070 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
3071 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
3072 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
3073 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
3074 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
3075 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
3076 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
3077 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
3078 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
3079 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
3080 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
3081 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
3082 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
3083 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
3084 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
3085 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
3086 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
3087 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
3088 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
3089 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
3090 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
3091 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
3092 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
3093 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
3094 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
3095 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
3096 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
3097 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
3098 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
3099 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
3100 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
3101 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
3102 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
3107 crc = ~crc & 0xffffffff;
3108 for (end = buf + len; buf < end; ++buf)
3109 crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8);
3110 return ~crc & 0xffffffff;;
3114 align_up (ULONGEST v, int n)
3116 /* Check that N is really a power of two. */
3117 gdb_assert (n && (n & (n-1)) == 0);
3118 return (v + n - 1) & -n;
3122 align_down (ULONGEST v, int n)
3124 /* Check that N is really a power of two. */
3125 gdb_assert (n && (n & (n-1)) == 0);
3129 /* Allocation function for the libiberty hash table which uses an
3130 obstack. The obstack is passed as DATA. */
3133 hashtab_obstack_allocate (void *data, size_t size, size_t count)
3135 unsigned int total = size * count;
3136 void *ptr = obstack_alloc ((struct obstack *) data, total);
3137 memset (ptr, 0, total);
3141 /* Trivial deallocation function for the libiberty splay tree and hash
3142 table - don't deallocate anything. Rely on later deletion of the
3143 obstack. DATA will be the obstack, although it is not needed
3147 dummy_obstack_deallocate (void *object, void *data)
3152 /* The bit offset of the highest byte in a ULONGEST, for overflow
3155 #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT)
3157 /* True (non-zero) iff DIGIT is a valid digit in radix BASE,
3158 where 2 <= BASE <= 36. */
3161 is_digit_in_base (unsigned char digit, int base)
3163 if (!isalnum (digit))
3166 return (isdigit (digit) && digit < base + '0');
3168 return (isdigit (digit) || tolower (digit) < base - 10 + 'a');
3172 digit_to_int (unsigned char c)
3177 return tolower (c) - 'a' + 10;
3180 /* As for strtoul, but for ULONGEST results. */
3183 strtoulst (const char *num, const char **trailer, int base)
3185 unsigned int high_part;
3190 /* Skip leading whitespace. */
3191 while (isspace (num[i]))
3194 /* Handle prefixes. */
3197 else if (num[i] == '-')
3203 if (base == 0 || base == 16)
3205 if (num[i] == '0' && (num[i + 1] == 'x' || num[i + 1] == 'X'))
3213 if (base == 0 && num[i] == '0')
3219 if (base < 2 || base > 36)
3225 result = high_part = 0;
3226 for (; is_digit_in_base (num[i], base); i += 1)
3228 result = result * base + digit_to_int (num[i]);
3229 high_part = high_part * base + (unsigned int) (result >> HIGH_BYTE_POSN);
3230 result &= ((ULONGEST) 1 << HIGH_BYTE_POSN) - 1;
3231 if (high_part > 0xff)
3234 result = ~ (ULONGEST) 0;
3241 if (trailer != NULL)
3244 result = result + ((ULONGEST) high_part << HIGH_BYTE_POSN);
3251 /* Simple, portable version of dirname that does not modify its
3255 ldirname (const char *filename)
3257 const char *base = lbasename (filename);
3260 while (base > filename && IS_DIR_SEPARATOR (base[-1]))
3263 if (base == filename)
3266 dirname = xmalloc (base - filename + 2);
3267 memcpy (dirname, filename, base - filename);
3269 /* On DOS based file systems, convert "d:foo" to "d:.", so that we
3270 create "d:./bar" later instead of the (different) "d:/bar". */
3271 if (base - filename == 2 && IS_ABSOLUTE_PATH (base)
3272 && !IS_DIR_SEPARATOR (filename[0]))
3273 dirname[base++ - filename] = '.';
3275 dirname[base - filename] = '\0';