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 *), void *args,
477 void (*continuation_free_args) (void *))
479 struct cleanup **as_cleanup_p = (struct cleanup **) &cmd_continuation;
480 make_cleanup_ftype *continuation_hook_fn = continuation_hook;
482 make_my_cleanup2 (as_cleanup_p,
483 continuation_hook_fn,
485 continuation_free_args);
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 (void)
499 struct cleanup *continuation_ptr;
501 /* Copy the list header into another pointer, and set the global
502 list header to null, so that the global list can change as a side
503 effect of invoking the continuations and the processing of the
504 preexisting continuations will not be affected. */
506 continuation_ptr = (struct cleanup *) cmd_continuation;
507 cmd_continuation = NULL;
509 /* Work now on the list we have set aside. */
510 do_my_cleanups (&continuation_ptr, NULL);
513 /* Walk down the cmd_continuation list, and get rid of all the
516 discard_all_continuations (void)
518 struct cleanup **continuation_ptr = (struct cleanup **) &cmd_continuation;
519 discard_my_cleanups (continuation_ptr, NULL);
522 /* Add a continuation to the continuation list, the global list
523 intermediate_continuation. The new continuation will be added at
526 add_intermediate_continuation (void (*continuation_hook)
527 (void *), void *args,
528 void (*continuation_free_args) (void *))
530 struct cleanup **as_cleanup_p = (struct cleanup **) &intermediate_continuation;
531 make_cleanup_ftype *continuation_hook_fn = continuation_hook;
533 make_my_cleanup2 (as_cleanup_p,
534 continuation_hook_fn,
536 continuation_free_args);
539 /* Walk down the cmd_continuation list, and execute all the
540 continuations. There is a problem though. In some cases new
541 continuations may be added while we are in the middle of this
542 loop. If this happens they will be added in the front, and done
543 before we have a chance of exhausting those that were already
544 there. We need to then save the beginning of the list in a pointer
545 and do the continuations from there on, instead of using the
546 global beginning of list as our iteration pointer.*/
548 do_all_intermediate_continuations (void)
550 struct cleanup *continuation_ptr;
552 /* Copy the list header into another pointer, and set the global
553 list header to null, so that the global list can change as a side
554 effect of invoking the continuations and the processing of the
555 preexisting continuations will not be affected. */
557 continuation_ptr = (struct cleanup *) intermediate_continuation;
558 intermediate_continuation = NULL;
560 /* Work now on the list we have set aside. */
561 do_my_cleanups (&continuation_ptr, NULL);
564 /* Walk down the cmd_continuation list, and get rid of all the
567 discard_all_intermediate_continuations (void)
569 struct cleanup **continuation_ptr
570 = (struct cleanup **) &intermediate_continuation;
571 discard_my_cleanups (continuation_ptr, NULL);
576 /* Print a warning message. The first argument STRING is the warning
577 message, used as an fprintf format string, the second is the
578 va_list of arguments for that string. A warning is unfiltered (not
579 paginated) so that the user does not need to page through each
580 screen full of warnings when there are lots of them. */
583 vwarning (const char *string, va_list args)
585 if (deprecated_warning_hook)
586 (*deprecated_warning_hook) (string, args);
589 target_terminal_ours ();
590 wrap_here (""); /* Force out any buffered output */
591 gdb_flush (gdb_stdout);
592 if (warning_pre_print)
593 fputs_unfiltered (warning_pre_print, gdb_stderr);
594 vfprintf_unfiltered (gdb_stderr, string, args);
595 fprintf_unfiltered (gdb_stderr, "\n");
600 /* Print a warning message.
601 The first argument STRING is the warning message, used as a fprintf string,
602 and the remaining args are passed as arguments to it.
603 The primary difference between warnings and errors is that a warning
604 does not force the return to command level. */
607 warning (const char *string, ...)
610 va_start (args, string);
611 vwarning (string, args);
615 /* Print an error message and return to command level.
616 The first argument STRING is the error message, used as a fprintf string,
617 and the remaining args are passed as arguments to it. */
620 verror (const char *string, va_list args)
622 throw_verror (GENERIC_ERROR, string, args);
626 error (const char *string, ...)
629 va_start (args, string);
630 throw_verror (GENERIC_ERROR, string, args);
634 /* Print an error message and quit.
635 The first argument STRING is the error message, used as a fprintf string,
636 and the remaining args are passed as arguments to it. */
639 vfatal (const char *string, va_list args)
641 throw_vfatal (string, args);
645 fatal (const char *string, ...)
648 va_start (args, string);
649 throw_vfatal (string, args);
654 error_stream (struct ui_file *stream)
657 char *message = ui_file_xstrdup (stream, &len);
658 make_cleanup (xfree, message);
659 error (("%s"), message);
662 /* Print a message reporting an internal error/warning. Ask the user
663 if they want to continue, dump core, or just exit. Return
664 something to indicate a quit. */
666 struct internal_problem
669 /* FIXME: cagney/2002-08-15: There should be ``maint set/show''
670 commands available for controlling these variables. */
671 enum auto_boolean should_quit;
672 enum auto_boolean should_dump_core;
675 /* Report a problem, internal to GDB, to the user. Once the problem
676 has been reported, and assuming GDB didn't quit, the caller can
677 either allow execution to resume or throw an error. */
679 static void ATTR_FORMAT (printf, 4, 0)
680 internal_vproblem (struct internal_problem *problem,
681 const char *file, int line, const char *fmt, va_list ap)
688 /* Don't allow infinite error/warning recursion. */
690 static char msg[] = "Recursive internal problem.\n";
698 fputs_unfiltered (msg, gdb_stderr);
699 abort (); /* NOTE: GDB has only three calls to abort(). */
702 write (STDERR_FILENO, msg, sizeof (msg));
707 /* Try to get the message out and at the start of a new line. */
708 target_terminal_ours ();
711 /* Create a string containing the full error/warning message. Need
712 to call query with this full string, as otherwize the reason
713 (error/warning) and question become separated. Format using a
714 style similar to a compiler error message. Include extra detail
715 so that the user knows that they are living on the edge. */
718 msg = xstrvprintf (fmt, ap);
719 reason = xstrprintf ("\
721 A problem internal to GDB has been detected,\n\
722 further debugging may prove unreliable.", file, line, problem->name, msg);
724 make_cleanup (xfree, reason);
727 switch (problem->should_quit)
729 case AUTO_BOOLEAN_AUTO:
730 /* Default (yes/batch case) is to quit GDB. When in batch mode
731 this lessens the likelhood of GDB going into an infinate
733 quit_p = query (_("%s\nQuit this debugging session? "), reason);
735 case AUTO_BOOLEAN_TRUE:
738 case AUTO_BOOLEAN_FALSE:
742 internal_error (__FILE__, __LINE__, _("bad switch"));
745 switch (problem->should_dump_core)
747 case AUTO_BOOLEAN_AUTO:
748 /* Default (yes/batch case) is to dump core. This leaves a GDB
749 `dropping' so that it is easier to see that something went
751 dump_core_p = query (_("%s\nCreate a core file of GDB? "), reason);
754 case AUTO_BOOLEAN_TRUE:
757 case AUTO_BOOLEAN_FALSE:
761 internal_error (__FILE__, __LINE__, _("bad switch"));
767 abort (); /* NOTE: GDB has only three calls to abort(). */
775 #ifdef HAVE_WORKING_FORK
777 abort (); /* NOTE: GDB has only three calls to abort(). */
785 static struct internal_problem internal_error_problem = {
786 "internal-error", AUTO_BOOLEAN_AUTO, AUTO_BOOLEAN_AUTO
790 internal_verror (const char *file, int line, const char *fmt, va_list ap)
792 internal_vproblem (&internal_error_problem, file, line, fmt, ap);
793 deprecated_throw_reason (RETURN_ERROR);
797 internal_error (const char *file, int line, const char *string, ...)
800 va_start (ap, string);
801 internal_verror (file, line, string, ap);
805 static struct internal_problem internal_warning_problem = {
806 "internal-warning", AUTO_BOOLEAN_AUTO, AUTO_BOOLEAN_AUTO
810 internal_vwarning (const char *file, int line, const char *fmt, va_list ap)
812 internal_vproblem (&internal_warning_problem, file, line, fmt, ap);
816 internal_warning (const char *file, int line, const char *string, ...)
819 va_start (ap, string);
820 internal_vwarning (file, line, string, ap);
824 /* Print the system error message for errno, and also mention STRING
825 as the file name for which the error was encountered.
826 Then return to command level. */
829 perror_with_name (const char *string)
834 err = safe_strerror (errno);
835 combined = (char *) alloca (strlen (err) + strlen (string) + 3);
836 strcpy (combined, string);
837 strcat (combined, ": ");
838 strcat (combined, err);
840 /* I understand setting these is a matter of taste. Still, some people
841 may clear errno but not know about bfd_error. Doing this here is not
843 bfd_set_error (bfd_error_no_error);
846 error (_("%s."), combined);
849 /* Print the system error message for ERRCODE, and also mention STRING
850 as the file name for which the error was encountered. */
853 print_sys_errmsg (const char *string, int errcode)
858 err = safe_strerror (errcode);
859 combined = (char *) alloca (strlen (err) + strlen (string) + 3);
860 strcpy (combined, string);
861 strcat (combined, ": ");
862 strcat (combined, err);
864 /* We want anything which was printed on stdout to come out first, before
866 gdb_flush (gdb_stdout);
867 fprintf_unfiltered (gdb_stderr, "%s.\n", combined);
870 /* Control C eventually causes this to be called, at a convenient time. */
876 /* No steenking SIGINT will ever be coming our way when the
877 program is resumed. Don't lie. */
881 /* If there is no terminal switching for this target, then we can't
882 possibly get screwed by the lack of job control. */
883 || current_target.to_terminal_ours == NULL)
886 fatal ("Quit (expect signal SIGINT when the program is resumed)");
891 /* Called when a memory allocation fails, with the number of bytes of
892 memory requested in SIZE. */
899 internal_error (__FILE__, __LINE__,
900 _("virtual memory exhausted: can't allocate %ld bytes."),
905 internal_error (__FILE__, __LINE__, _("virtual memory exhausted."));
909 /* The xmalloc() (libiberty.h) family of memory management routines.
911 These are like the ISO-C malloc() family except that they implement
912 consistent semantics and guard against typical memory management
915 /* NOTE: These are declared using PTR to ensure consistency with
916 "libiberty.h". xfree() is GDB local. */
919 xmalloc (size_t size)
923 /* See libiberty/xmalloc.c. This function need's to match that's
924 semantics. It never returns NULL. */
928 val = malloc (size); /* OK: malloc */
936 xzalloc (size_t size)
938 return xcalloc (1, size);
942 xrealloc (PTR ptr, size_t size) /* OK: PTR */
946 /* See libiberty/xmalloc.c. This function need's to match that's
947 semantics. It never returns NULL. */
952 val = realloc (ptr, size); /* OK: realloc */
954 val = malloc (size); /* OK: malloc */
962 xcalloc (size_t number, size_t size)
966 /* See libiberty/xmalloc.c. This function need's to match that's
967 semantics. It never returns NULL. */
968 if (number == 0 || size == 0)
974 mem = calloc (number, size); /* OK: xcalloc */
976 nomem (number * size);
985 free (ptr); /* OK: free */
989 /* Like asprintf/vasprintf but get an internal_error if the call
993 xstrprintf (const char *format, ...)
997 va_start (args, format);
998 ret = xstrvprintf (format, args);
1004 xasprintf (char **ret, const char *format, ...)
1007 va_start (args, format);
1008 (*ret) = xstrvprintf (format, args);
1013 xvasprintf (char **ret, const char *format, va_list ap)
1015 (*ret) = xstrvprintf (format, ap);
1019 xstrvprintf (const char *format, va_list ap)
1022 int status = vasprintf (&ret, format, ap);
1023 /* NULL is returned when there was a memory allocation problem, or
1024 any other error (for instance, a bad format string). A negative
1025 status (the printed length) with a non-NULL buffer should never
1026 happen, but just to be sure. */
1027 if (ret == NULL || status < 0)
1028 internal_error (__FILE__, __LINE__, _("vasprintf call failed"));
1033 xsnprintf (char *str, size_t size, const char *format, ...)
1038 va_start (args, format);
1039 ret = vsnprintf (str, size, format, args);
1040 gdb_assert (ret < size);
1046 /* My replacement for the read system call.
1047 Used like `read' but keeps going if `read' returns too soon. */
1050 myread (int desc, char *addr, int len)
1057 val = read (desc, addr, len);
1061 return orglen - len;
1068 /* Make a copy of the string at PTR with SIZE characters
1069 (and add a null character at the end in the copy).
1070 Uses malloc to get the space. Returns the address of the copy. */
1073 savestring (const char *ptr, size_t size)
1075 char *p = (char *) xmalloc (size + 1);
1076 memcpy (p, ptr, size);
1082 print_spaces (int n, struct ui_file *file)
1084 fputs_unfiltered (n_spaces (n), file);
1087 /* Print a host address. */
1090 gdb_print_host_address (const void *addr, struct ui_file *stream)
1093 /* We could use the %p conversion specifier to fprintf if we had any
1094 way of knowing whether this host supports it. But the following
1095 should work on the Alpha and on 32 bit machines. */
1097 fprintf_filtered (stream, "0x%lx", (unsigned long) addr);
1101 /* This function supports the query, nquery, and yquery functions.
1102 Ask user a y-or-n question and return 0 if answer is no, 1 if
1103 answer is yes, or default the answer to the specified default
1104 (for yquery or nquery). DEFCHAR may be 'y' or 'n' to provide a
1105 default answer, or '\0' for no default.
1106 CTLSTR is the control string and should end in "? ". It should
1107 not say how to answer, because we do that.
1108 ARGS are the arguments passed along with the CTLSTR argument to
1111 static int ATTR_FORMAT (printf, 1, 0)
1112 defaulted_query (const char *ctlstr, const char defchar, va_list args)
1118 char def_answer, not_def_answer;
1119 char *y_string, *n_string, *question;
1121 /* Set up according to which answer is the default. */
1122 if (defchar == '\0')
1126 not_def_answer = 'N';
1130 else if (defchar == 'y')
1134 not_def_answer = 'N';
1142 not_def_answer = 'Y';
1147 /* Automatically answer the default value if the user did not want
1152 /* If input isn't coming from the user directly, just say what
1153 question we're asking, and then answer "yes" automatically. This
1154 way, important error messages don't get lost when talking to GDB
1156 if (! input_from_terminal_p ())
1159 vfprintf_filtered (gdb_stdout, ctlstr, args);
1161 printf_filtered (_("(%s or %s) [answered %c; input not from terminal]\n"),
1162 y_string, n_string, def_answer);
1163 gdb_flush (gdb_stdout);
1168 /* Automatically answer the default value if input is not from the user
1169 directly, or if the user did not want prompts. */
1170 if (!input_from_terminal_p () || !caution)
1173 if (deprecated_query_hook)
1175 return deprecated_query_hook (ctlstr, args);
1178 /* Format the question outside of the loop, to avoid reusing args. */
1179 question = xstrvprintf (ctlstr, args);
1183 wrap_here (""); /* Flush any buffered output */
1184 gdb_flush (gdb_stdout);
1186 if (annotation_level > 1)
1187 printf_filtered (("\n\032\032pre-query\n"));
1189 fputs_filtered (question, gdb_stdout);
1190 printf_filtered (_("(%s or %s) "), y_string, n_string);
1192 if (annotation_level > 1)
1193 printf_filtered (("\n\032\032query\n"));
1196 gdb_flush (gdb_stdout);
1198 answer = fgetc (stdin);
1199 clearerr (stdin); /* in case of C-d */
1200 if (answer == EOF) /* C-d */
1202 printf_filtered ("EOF [assumed %c]\n", def_answer);
1206 /* Eat rest of input line, to EOF or newline */
1210 ans2 = fgetc (stdin);
1213 while (ans2 != EOF && ans2 != '\n' && ans2 != '\r');
1217 /* Check answer. For the non-default, the user must specify
1218 the non-default explicitly. */
1219 if (answer == not_def_answer)
1221 retval = !def_value;
1224 /* Otherwise, if a default was specified, the user may either
1225 specify the required input or have it default by entering
1227 if (answer == def_answer
1228 || (defchar != '\0' &&
1229 (answer == '\n' || answer == '\r' || answer == EOF)))
1234 /* Invalid entries are not defaulted and require another selection. */
1235 printf_filtered (_("Please answer %s or %s.\n"),
1236 y_string, n_string);
1240 if (annotation_level > 1)
1241 printf_filtered (("\n\032\032post-query\n"));
1246 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1247 answer is yes, or 0 if answer is defaulted.
1248 Takes three args which are given to printf to print the question.
1249 The first, a control string, should end in "? ".
1250 It should not say how to answer, because we do that. */
1253 nquery (const char *ctlstr, ...)
1257 va_start (args, ctlstr);
1258 return defaulted_query (ctlstr, 'n', args);
1262 /* Ask user a y-or-n question and return 0 if answer is no, 1 if
1263 answer is yes, or 1 if answer is defaulted.
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. */
1269 yquery (const char *ctlstr, ...)
1273 va_start (args, ctlstr);
1274 return defaulted_query (ctlstr, 'y', args);
1278 /* Ask user a y-or-n question and return 1 iff answer is yes.
1279 Takes three args which are given to printf to print the question.
1280 The first, a control string, should end in "? ".
1281 It should not say how to answer, because we do that. */
1284 query (const char *ctlstr, ...)
1288 va_start (args, ctlstr);
1289 return defaulted_query (ctlstr, '\0', args);
1293 /* Print an error message saying that we couldn't make sense of a
1294 \^mumble sequence in a string or character constant. START and END
1295 indicate a substring of some larger string that contains the
1296 erroneous backslash sequence, missing the initial backslash. */
1298 no_control_char_error (const char *start, const char *end)
1300 int len = end - start;
1301 char *copy = alloca (end - start + 1);
1303 memcpy (copy, start, len);
1306 error (_("There is no control character `\\%s' in the `%s' character set."),
1307 copy, target_charset ());
1310 /* Parse a C escape sequence. STRING_PTR points to a variable
1311 containing a pointer to the string to parse. That pointer
1312 should point to the character after the \. That pointer
1313 is updated past the characters we use. The value of the
1314 escape sequence is returned.
1316 A negative value means the sequence \ newline was seen,
1317 which is supposed to be equivalent to nothing at all.
1319 If \ is followed by a null character, we return a negative
1320 value and leave the string pointer pointing at the null character.
1322 If \ is followed by 000, we return 0 and leave the string pointer
1323 after the zeros. A value of 0 does not mean end of string. */
1326 parse_escape (char **string_ptr)
1329 int c = *(*string_ptr)++;
1330 if (c_parse_backslash (c, &target_char))
1342 /* Remember where this escape sequence started, for reporting
1344 char *sequence_start_pos = *string_ptr - 1;
1346 c = *(*string_ptr)++;
1350 /* XXXCHARSET: What is `delete' in the host character set? */
1353 if (!host_char_to_target (c, &target_char))
1354 error (_("There is no character corresponding to `Delete' "
1355 "in the target character set `%s'."), host_charset ());
1360 target_char = parse_escape (string_ptr);
1363 if (!host_char_to_target (c, &target_char))
1364 no_control_char_error (sequence_start_pos, *string_ptr);
1367 /* Now target_char is something like `c', and we want to find
1368 its control-character equivalent. */
1369 if (!target_char_to_control_char (target_char, &target_char))
1370 no_control_char_error (sequence_start_pos, *string_ptr);
1375 /* XXXCHARSET: we need to use isdigit and value-of-digit
1376 methods of the host character set here. */
1392 if (c >= '0' && c <= '7')
1406 if (!host_char_to_target (c, &target_char))
1408 ("The escape sequence `\%c' is equivalent to plain `%c', which"
1409 " has no equivalent\n" "in the `%s' character set.", c, c,
1415 /* Print the character C on STREAM as part of the contents of a literal
1416 string whose delimiter is QUOTER. Note that this routine should only
1417 be call for printing things which are independent of the language
1418 of the program being debugged. */
1421 printchar (int c, void (*do_fputs) (const char *, struct ui_file *),
1422 void (*do_fprintf) (struct ui_file *, const char *, ...)
1423 ATTRIBUTE_FPTR_PRINTF_2, struct ui_file *stream, int quoter)
1426 c &= 0xFF; /* Avoid sign bit follies */
1428 if (c < 0x20 || /* Low control chars */
1429 (c >= 0x7F && c < 0xA0) || /* DEL, High controls */
1430 (sevenbit_strings && c >= 0x80))
1431 { /* high order bit set */
1435 do_fputs ("\\n", stream);
1438 do_fputs ("\\b", stream);
1441 do_fputs ("\\t", stream);
1444 do_fputs ("\\f", stream);
1447 do_fputs ("\\r", stream);
1450 do_fputs ("\\e", stream);
1453 do_fputs ("\\a", stream);
1456 do_fprintf (stream, "\\%.3o", (unsigned int) c);
1462 if (c == '\\' || c == quoter)
1463 do_fputs ("\\", stream);
1464 do_fprintf (stream, "%c", c);
1468 /* Print the character C on STREAM as part of the contents of a
1469 literal string whose delimiter is QUOTER. Note that these routines
1470 should only be call for printing things which are independent of
1471 the language of the program being debugged. */
1474 fputstr_filtered (const char *str, int quoter, struct ui_file *stream)
1477 printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter);
1481 fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream)
1484 printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter);
1488 fputstrn_filtered (const char *str, int n, int quoter,
1489 struct ui_file *stream)
1492 for (i = 0; i < n; i++)
1493 printchar (str[i], fputs_filtered, fprintf_filtered, stream, quoter);
1497 fputstrn_unfiltered (const char *str, int n, int quoter,
1498 struct ui_file *stream)
1501 for (i = 0; i < n; i++)
1502 printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter);
1506 /* Number of lines per page or UINT_MAX if paging is disabled. */
1507 static unsigned int lines_per_page;
1509 show_lines_per_page (struct ui_file *file, int from_tty,
1510 struct cmd_list_element *c, const char *value)
1512 fprintf_filtered (file, _("\
1513 Number of lines gdb thinks are in a page is %s.\n"),
1517 /* Number of chars per line or UINT_MAX if line folding is disabled. */
1518 static unsigned int chars_per_line;
1520 show_chars_per_line (struct ui_file *file, int from_tty,
1521 struct cmd_list_element *c, const char *value)
1523 fprintf_filtered (file, _("\
1524 Number of characters gdb thinks are in a line is %s.\n"),
1528 /* Current count of lines printed on this page, chars on this line. */
1529 static unsigned int lines_printed, chars_printed;
1531 /* Buffer and start column of buffered text, for doing smarter word-
1532 wrapping. When someone calls wrap_here(), we start buffering output
1533 that comes through fputs_filtered(). If we see a newline, we just
1534 spit it out and forget about the wrap_here(). If we see another
1535 wrap_here(), we spit it out and remember the newer one. If we see
1536 the end of the line, we spit out a newline, the indent, and then
1537 the buffered output. */
1539 /* Malloc'd buffer with chars_per_line+2 bytes. Contains characters which
1540 are waiting to be output (they have already been counted in chars_printed).
1541 When wrap_buffer[0] is null, the buffer is empty. */
1542 static char *wrap_buffer;
1544 /* Pointer in wrap_buffer to the next character to fill. */
1545 static char *wrap_pointer;
1547 /* String to indent by if the wrap occurs. Must not be NULL if wrap_column
1549 static char *wrap_indent;
1551 /* Column number on the screen where wrap_buffer begins, or 0 if wrapping
1552 is not in effect. */
1553 static int wrap_column;
1556 /* Inialize the number of lines per page and chars per line. */
1559 init_page_info (void)
1562 if (!tui_get_command_dimension (&chars_per_line, &lines_per_page))
1567 #if defined(__GO32__)
1568 rows = ScreenRows ();
1569 cols = ScreenCols ();
1570 lines_per_page = rows;
1571 chars_per_line = cols;
1573 /* Make sure Readline has initialized its terminal settings. */
1574 rl_reset_terminal (NULL);
1576 /* Get the screen size from Readline. */
1577 rl_get_screen_size (&rows, &cols);
1578 lines_per_page = rows;
1579 chars_per_line = cols;
1581 /* Readline should have fetched the termcap entry for us. */
1582 if (tgetnum ("li") < 0 || getenv ("EMACS"))
1584 /* The number of lines per page is not mentioned in the
1585 terminal description. This probably means that paging is
1586 not useful (e.g. emacs shell window), so disable paging. */
1587 lines_per_page = UINT_MAX;
1590 /* FIXME: Get rid of this junk. */
1591 #if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
1592 SIGWINCH_HANDLER (SIGWINCH);
1595 /* If the output is not a terminal, don't paginate it. */
1596 if (!ui_file_isatty (gdb_stdout))
1597 lines_per_page = UINT_MAX;
1605 /* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE. */
1608 set_screen_size (void)
1610 int rows = lines_per_page;
1611 int cols = chars_per_line;
1619 /* Update Readline's idea of the terminal size. */
1620 rl_set_screen_size (rows, cols);
1623 /* Reinitialize WRAP_BUFFER according to the current value of
1629 if (chars_per_line == 0)
1634 wrap_buffer = (char *) xmalloc (chars_per_line + 2);
1635 wrap_buffer[0] = '\0';
1638 wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2);
1639 wrap_pointer = wrap_buffer; /* Start it at the beginning. */
1643 set_width_command (char *args, int from_tty, struct cmd_list_element *c)
1650 set_height_command (char *args, int from_tty, struct cmd_list_element *c)
1655 /* Wait, so the user can read what's on the screen. Prompt the user
1656 to continue by pressing RETURN. */
1659 prompt_for_continue (void)
1662 char cont_prompt[120];
1664 if (annotation_level > 1)
1665 printf_unfiltered (("\n\032\032pre-prompt-for-continue\n"));
1667 strcpy (cont_prompt,
1668 "---Type <return> to continue, or q <return> to quit---");
1669 if (annotation_level > 1)
1670 strcat (cont_prompt, "\n\032\032prompt-for-continue\n");
1672 /* We must do this *before* we call gdb_readline, else it will eventually
1673 call us -- thinking that we're trying to print beyond the end of the
1675 reinitialize_more_filter ();
1678 /* On a real operating system, the user can quit with SIGINT.
1681 'q' is provided on all systems so users don't have to change habits
1682 from system to system, and because telling them what to do in
1683 the prompt is more user-friendly than expecting them to think of
1685 /* Call readline, not gdb_readline, because GO32 readline handles control-C
1686 whereas control-C to gdb_readline will cause the user to get dumped
1688 ignore = gdb_readline_wrapper (cont_prompt);
1690 if (annotation_level > 1)
1691 printf_unfiltered (("\n\032\032post-prompt-for-continue\n"));
1696 while (*p == ' ' || *p == '\t')
1699 async_request_quit (0);
1704 /* Now we have to do this again, so that GDB will know that it doesn't
1705 need to save the ---Type <return>--- line at the top of the screen. */
1706 reinitialize_more_filter ();
1708 dont_repeat (); /* Forget prev cmd -- CR won't repeat it. */
1711 /* Reinitialize filter; ie. tell it to reset to original values. */
1714 reinitialize_more_filter (void)
1720 /* Indicate that if the next sequence of characters overflows the line,
1721 a newline should be inserted here rather than when it hits the end.
1722 If INDENT is non-null, it is a string to be printed to indent the
1723 wrapped part on the next line. INDENT must remain accessible until
1724 the next call to wrap_here() or until a newline is printed through
1727 If the line is already overfull, we immediately print a newline and
1728 the indentation, and disable further wrapping.
1730 If we don't know the width of lines, but we know the page height,
1731 we must not wrap words, but should still keep track of newlines
1732 that were explicitly printed.
1734 INDENT should not contain tabs, as that will mess up the char count
1735 on the next line. FIXME.
1737 This routine is guaranteed to force out any output which has been
1738 squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be
1739 used to force out output from the wrap_buffer. */
1742 wrap_here (char *indent)
1744 /* This should have been allocated, but be paranoid anyway. */
1746 internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
1750 *wrap_pointer = '\0';
1751 fputs_unfiltered (wrap_buffer, gdb_stdout);
1753 wrap_pointer = wrap_buffer;
1754 wrap_buffer[0] = '\0';
1755 if (chars_per_line == UINT_MAX) /* No line overflow checking */
1759 else if (chars_printed >= chars_per_line)
1761 puts_filtered ("\n");
1763 puts_filtered (indent);
1768 wrap_column = chars_printed;
1772 wrap_indent = indent;
1776 /* Print input string to gdb_stdout, filtered, with wrap,
1777 arranging strings in columns of n chars. String can be
1778 right or left justified in the column. Never prints
1779 trailing spaces. String should never be longer than
1780 width. FIXME: this could be useful for the EXAMINE
1781 command, which currently doesn't tabulate very well */
1784 puts_filtered_tabular (char *string, int width, int right)
1790 gdb_assert (chars_per_line > 0);
1791 if (chars_per_line == UINT_MAX)
1793 fputs_filtered (string, gdb_stdout);
1794 fputs_filtered ("\n", gdb_stdout);
1798 if (((chars_printed - 1) / width + 2) * width >= chars_per_line)
1799 fputs_filtered ("\n", gdb_stdout);
1801 if (width >= chars_per_line)
1802 width = chars_per_line - 1;
1804 stringlen = strlen (string);
1806 if (chars_printed > 0)
1807 spaces = width - (chars_printed - 1) % width - 1;
1809 spaces += width - stringlen;
1811 spacebuf = alloca (spaces + 1);
1812 spacebuf[spaces] = '\0';
1814 spacebuf[spaces] = ' ';
1816 fputs_filtered (spacebuf, gdb_stdout);
1817 fputs_filtered (string, gdb_stdout);
1821 /* Ensure that whatever gets printed next, using the filtered output
1822 commands, starts at the beginning of the line. I.E. if there is
1823 any pending output for the current line, flush it and start a new
1824 line. Otherwise do nothing. */
1829 if (chars_printed > 0)
1831 puts_filtered ("\n");
1836 /* Like fputs but if FILTER is true, pause after every screenful.
1838 Regardless of FILTER can wrap at points other than the final
1839 character of a line.
1841 Unlike fputs, fputs_maybe_filtered does not return a value.
1842 It is OK for LINEBUFFER to be NULL, in which case just don't print
1845 Note that a longjmp to top level may occur in this routine (only if
1846 FILTER is true) (since prompt_for_continue may do so) so this
1847 routine should not be called when cleanups are not in place. */
1850 fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream,
1853 const char *lineptr;
1855 if (linebuffer == 0)
1858 /* Don't do any filtering if it is disabled. */
1859 if ((stream != gdb_stdout) || !pagination_enabled
1860 || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX))
1862 fputs_unfiltered (linebuffer, stream);
1866 /* Go through and output each character. Show line extension
1867 when this is necessary; prompt user for new page when this is
1870 lineptr = linebuffer;
1873 /* Possible new page. */
1874 if (filter && (lines_printed >= lines_per_page - 1))
1875 prompt_for_continue ();
1877 while (*lineptr && *lineptr != '\n')
1879 /* Print a single line. */
1880 if (*lineptr == '\t')
1883 *wrap_pointer++ = '\t';
1885 fputc_unfiltered ('\t', stream);
1886 /* Shifting right by 3 produces the number of tab stops
1887 we have already passed, and then adding one and
1888 shifting left 3 advances to the next tab stop. */
1889 chars_printed = ((chars_printed >> 3) + 1) << 3;
1895 *wrap_pointer++ = *lineptr;
1897 fputc_unfiltered (*lineptr, stream);
1902 if (chars_printed >= chars_per_line)
1904 unsigned int save_chars = chars_printed;
1908 /* If we aren't actually wrapping, don't output newline --
1909 if chars_per_line is right, we probably just overflowed
1910 anyway; if it's wrong, let us keep going. */
1912 fputc_unfiltered ('\n', stream);
1914 /* Possible new page. */
1915 if (lines_printed >= lines_per_page - 1)
1916 prompt_for_continue ();
1918 /* Now output indentation and wrapped string */
1921 fputs_unfiltered (wrap_indent, stream);
1922 *wrap_pointer = '\0'; /* Null-terminate saved stuff */
1923 fputs_unfiltered (wrap_buffer, stream); /* and eject it */
1924 /* FIXME, this strlen is what prevents wrap_indent from
1925 containing tabs. However, if we recurse to print it
1926 and count its chars, we risk trouble if wrap_indent is
1927 longer than (the user settable) chars_per_line.
1928 Note also that this can set chars_printed > chars_per_line
1929 if we are printing a long string. */
1930 chars_printed = strlen (wrap_indent)
1931 + (save_chars - wrap_column);
1932 wrap_pointer = wrap_buffer; /* Reset buffer */
1933 wrap_buffer[0] = '\0';
1934 wrap_column = 0; /* And disable fancy wrap */
1939 if (*lineptr == '\n')
1942 wrap_here ((char *) 0); /* Spit out chars, cancel further wraps */
1944 fputc_unfiltered ('\n', stream);
1951 fputs_filtered (const char *linebuffer, struct ui_file *stream)
1953 fputs_maybe_filtered (linebuffer, stream, 1);
1957 putchar_unfiltered (int c)
1960 ui_file_write (gdb_stdout, &buf, 1);
1964 /* Write character C to gdb_stdout using GDB's paging mechanism and return C.
1965 May return nonlocally. */
1968 putchar_filtered (int c)
1970 return fputc_filtered (c, gdb_stdout);
1974 fputc_unfiltered (int c, struct ui_file *stream)
1977 ui_file_write (stream, &buf, 1);
1982 fputc_filtered (int c, struct ui_file *stream)
1988 fputs_filtered (buf, stream);
1992 /* puts_debug is like fputs_unfiltered, except it prints special
1993 characters in printable fashion. */
1996 puts_debug (char *prefix, char *string, char *suffix)
2000 /* Print prefix and suffix after each line. */
2001 static int new_line = 1;
2002 static int return_p = 0;
2003 static char *prev_prefix = "";
2004 static char *prev_suffix = "";
2006 if (*string == '\n')
2009 /* If the prefix is changing, print the previous suffix, a new line,
2010 and the new prefix. */
2011 if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line)
2013 fputs_unfiltered (prev_suffix, gdb_stdlog);
2014 fputs_unfiltered ("\n", gdb_stdlog);
2015 fputs_unfiltered (prefix, gdb_stdlog);
2018 /* Print prefix if we printed a newline during the previous call. */
2022 fputs_unfiltered (prefix, gdb_stdlog);
2025 prev_prefix = prefix;
2026 prev_suffix = suffix;
2028 /* Output characters in a printable format. */
2029 while ((ch = *string++) != '\0')
2035 fputc_unfiltered (ch, gdb_stdlog);
2038 fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff);
2042 fputs_unfiltered ("\\\\", gdb_stdlog);
2045 fputs_unfiltered ("\\b", gdb_stdlog);
2048 fputs_unfiltered ("\\f", gdb_stdlog);
2052 fputs_unfiltered ("\\n", gdb_stdlog);
2055 fputs_unfiltered ("\\r", gdb_stdlog);
2058 fputs_unfiltered ("\\t", gdb_stdlog);
2061 fputs_unfiltered ("\\v", gdb_stdlog);
2065 return_p = ch == '\r';
2068 /* Print suffix if we printed a newline. */
2071 fputs_unfiltered (suffix, gdb_stdlog);
2072 fputs_unfiltered ("\n", gdb_stdlog);
2077 /* Print a variable number of ARGS using format FORMAT. If this
2078 information is going to put the amount written (since the last call
2079 to REINITIALIZE_MORE_FILTER or the last page break) over the page size,
2080 call prompt_for_continue to get the users permision to continue.
2082 Unlike fprintf, this function does not return a value.
2084 We implement three variants, vfprintf (takes a vararg list and stream),
2085 fprintf (takes a stream to write on), and printf (the usual).
2087 Note also that a longjmp to top level may occur in this routine
2088 (since prompt_for_continue may do so) so this routine should not be
2089 called when cleanups are not in place. */
2092 vfprintf_maybe_filtered (struct ui_file *stream, const char *format,
2093 va_list args, int filter)
2096 struct cleanup *old_cleanups;
2098 linebuffer = xstrvprintf (format, args);
2099 old_cleanups = make_cleanup (xfree, linebuffer);
2100 fputs_maybe_filtered (linebuffer, stream, filter);
2101 do_cleanups (old_cleanups);
2106 vfprintf_filtered (struct ui_file *stream, const char *format, va_list args)
2108 vfprintf_maybe_filtered (stream, format, args, 1);
2112 vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args)
2115 struct cleanup *old_cleanups;
2117 linebuffer = xstrvprintf (format, args);
2118 old_cleanups = make_cleanup (xfree, linebuffer);
2119 if (debug_timestamp && stream == gdb_stdlog)
2124 gettimeofday (&tm, NULL);
2125 timestamp = xstrprintf ("%ld:%ld ", (long) tm.tv_sec, (long) tm.tv_usec);
2126 make_cleanup (xfree, timestamp);
2127 fputs_unfiltered (timestamp, stream);
2129 fputs_unfiltered (linebuffer, stream);
2130 do_cleanups (old_cleanups);
2134 vprintf_filtered (const char *format, va_list args)
2136 vfprintf_maybe_filtered (gdb_stdout, format, args, 1);
2140 vprintf_unfiltered (const char *format, va_list args)
2142 vfprintf_unfiltered (gdb_stdout, format, args);
2146 fprintf_filtered (struct ui_file *stream, const char *format, ...)
2149 va_start (args, format);
2150 vfprintf_filtered (stream, format, args);
2155 fprintf_unfiltered (struct ui_file *stream, const char *format, ...)
2158 va_start (args, format);
2159 vfprintf_unfiltered (stream, format, args);
2163 /* Like fprintf_filtered, but prints its result indented.
2164 Called as fprintfi_filtered (spaces, stream, format, ...); */
2167 fprintfi_filtered (int spaces, struct ui_file *stream, const char *format,
2171 va_start (args, format);
2172 print_spaces_filtered (spaces, stream);
2174 vfprintf_filtered (stream, format, args);
2180 printf_filtered (const char *format, ...)
2183 va_start (args, format);
2184 vfprintf_filtered (gdb_stdout, format, args);
2190 printf_unfiltered (const char *format, ...)
2193 va_start (args, format);
2194 vfprintf_unfiltered (gdb_stdout, format, args);
2198 /* Like printf_filtered, but prints it's result indented.
2199 Called as printfi_filtered (spaces, format, ...); */
2202 printfi_filtered (int spaces, const char *format, ...)
2205 va_start (args, format);
2206 print_spaces_filtered (spaces, gdb_stdout);
2207 vfprintf_filtered (gdb_stdout, format, args);
2211 /* Easy -- but watch out!
2213 This routine is *not* a replacement for puts()! puts() appends a newline.
2214 This one doesn't, and had better not! */
2217 puts_filtered (const char *string)
2219 fputs_filtered (string, gdb_stdout);
2223 puts_unfiltered (const char *string)
2225 fputs_unfiltered (string, gdb_stdout);
2228 /* Return a pointer to N spaces and a null. The pointer is good
2229 until the next call to here. */
2234 static char *spaces = 0;
2235 static int max_spaces = -1;
2241 spaces = (char *) xmalloc (n + 1);
2242 for (t = spaces + n; t != spaces;)
2248 return spaces + max_spaces - n;
2251 /* Print N spaces. */
2253 print_spaces_filtered (int n, struct ui_file *stream)
2255 fputs_filtered (n_spaces (n), stream);
2258 /* C++/ObjC demangler stuff. */
2260 /* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language
2261 LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
2262 If the name is not mangled, or the language for the name is unknown, or
2263 demangling is off, the name is printed in its "raw" form. */
2266 fprintf_symbol_filtered (struct ui_file *stream, char *name,
2267 enum language lang, int arg_mode)
2273 /* If user wants to see raw output, no problem. */
2276 fputs_filtered (name, stream);
2280 demangled = language_demangle (language_def (lang), name, arg_mode);
2281 fputs_filtered (demangled ? demangled : name, stream);
2282 if (demangled != NULL)
2290 /* Do a strcmp() type operation on STRING1 and STRING2, ignoring any
2291 differences in whitespace. Returns 0 if they match, non-zero if they
2292 don't (slightly different than strcmp()'s range of return values).
2294 As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO".
2295 This "feature" is useful when searching for matching C++ function names
2296 (such as if the user types 'break FOO', where FOO is a mangled C++
2300 strcmp_iw (const char *string1, const char *string2)
2302 while ((*string1 != '\0') && (*string2 != '\0'))
2304 while (isspace (*string1))
2308 while (isspace (*string2))
2312 if (*string1 != *string2)
2316 if (*string1 != '\0')
2322 return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0');
2325 /* This is like strcmp except that it ignores whitespace and treats
2326 '(' as the first non-NULL character in terms of ordering. Like
2327 strcmp (and unlike strcmp_iw), it returns negative if STRING1 <
2328 STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2
2329 according to that ordering.
2331 If a list is sorted according to this function and if you want to
2332 find names in the list that match some fixed NAME according to
2333 strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
2334 where this function would put NAME.
2336 Here are some examples of why using strcmp to sort is a bad idea:
2340 Say your partial symtab contains: "foo<char *>", "goo". Then, if
2341 we try to do a search for "foo<char*>", strcmp will locate this
2342 after "foo<char *>" and before "goo". Then lookup_partial_symbol
2343 will start looking at strings beginning with "goo", and will never
2344 see the correct match of "foo<char *>".
2346 Parenthesis example:
2348 In practice, this is less like to be an issue, but I'll give it a
2349 shot. Let's assume that '$' is a legitimate character to occur in
2350 symbols. (Which may well even be the case on some systems.) Then
2351 say that the partial symbol table contains "foo$" and "foo(int)".
2352 strcmp will put them in this order, since '$' < '('. Now, if the
2353 user searches for "foo", then strcmp will sort "foo" before "foo$".
2354 Then lookup_partial_symbol will notice that strcmp_iw("foo$",
2355 "foo") is false, so it won't proceed to the actual match of
2356 "foo(int)" with "foo". */
2359 strcmp_iw_ordered (const char *string1, const char *string2)
2361 while ((*string1 != '\0') && (*string2 != '\0'))
2363 while (isspace (*string1))
2367 while (isspace (*string2))
2371 if (*string1 != *string2)
2375 if (*string1 != '\0')
2384 /* Characters are non-equal unless they're both '\0'; we want to
2385 make sure we get the comparison right according to our
2386 comparison in the cases where one of them is '\0' or '('. */
2388 if (*string2 == '\0')
2393 if (*string2 == '\0')
2398 if (*string2 == '(')
2401 return *string1 - *string2;
2405 /* A simple comparison function with opposite semantics to strcmp. */
2408 streq (const char *lhs, const char *rhs)
2410 return !strcmp (lhs, rhs);
2416 ** Answer whether string_to_compare is a full or partial match to
2417 ** template_string. The partial match must be in sequence starting
2421 subset_compare (char *string_to_compare, char *template_string)
2424 if (template_string != (char *) NULL && string_to_compare != (char *) NULL
2425 && strlen (string_to_compare) <= strlen (template_string))
2428 (template_string, string_to_compare, strlen (string_to_compare)) == 0);
2435 pagination_on_command (char *arg, int from_tty)
2437 pagination_enabled = 1;
2441 pagination_off_command (char *arg, int from_tty)
2443 pagination_enabled = 0;
2447 show_debug_timestamp (struct ui_file *file, int from_tty,
2448 struct cmd_list_element *c, const char *value)
2450 fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), value);
2455 initialize_utils (void)
2457 struct cmd_list_element *c;
2459 add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\
2460 Set number of characters gdb thinks are in a line."), _("\
2461 Show number of characters gdb thinks are in a line."), NULL,
2463 show_chars_per_line,
2464 &setlist, &showlist);
2466 add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\
2467 Set number of lines gdb thinks are in a page."), _("\
2468 Show number of lines gdb thinks are in a page."), NULL,
2470 show_lines_per_page,
2471 &setlist, &showlist);
2475 add_setshow_boolean_cmd ("demangle", class_support, &demangle, _("\
2476 Set demangling of encoded C++/ObjC names when displaying symbols."), _("\
2477 Show demangling of encoded C++/ObjC names when displaying symbols."), NULL,
2480 &setprintlist, &showprintlist);
2482 add_setshow_boolean_cmd ("pagination", class_support,
2483 &pagination_enabled, _("\
2484 Set state of pagination."), _("\
2485 Show state of pagination."), NULL,
2487 show_pagination_enabled,
2488 &setlist, &showlist);
2492 add_com ("am", class_support, pagination_on_command,
2493 _("Enable pagination"));
2494 add_com ("sm", class_support, pagination_off_command,
2495 _("Disable pagination"));
2498 add_setshow_boolean_cmd ("sevenbit-strings", class_support,
2499 &sevenbit_strings, _("\
2500 Set printing of 8-bit characters in strings as \\nnn."), _("\
2501 Show printing of 8-bit characters in strings as \\nnn."), NULL,
2503 show_sevenbit_strings,
2504 &setprintlist, &showprintlist);
2506 add_setshow_boolean_cmd ("asm-demangle", class_support, &asm_demangle, _("\
2507 Set demangling of C++/ObjC names in disassembly listings."), _("\
2508 Show demangling of C++/ObjC names in disassembly listings."), NULL,
2511 &setprintlist, &showprintlist);
2513 add_setshow_boolean_cmd ("timestamp", class_maintenance,
2514 &debug_timestamp, _("\
2515 Set timestamping of debugging messages."), _("\
2516 Show timestamping of debugging messages."), _("\
2517 When set, debugging messages will be marked with seconds and microseconds."),
2519 show_debug_timestamp,
2520 &setdebuglist, &showdebuglist);
2523 /* Machine specific function to handle SIGWINCH signal. */
2525 #ifdef SIGWINCH_HANDLER_BODY
2526 SIGWINCH_HANDLER_BODY
2528 /* print routines to handle variable size regs, etc. */
2529 /* temporary storage using circular buffer */
2535 static char buf[NUMCELLS][CELLSIZE];
2536 static int cell = 0;
2537 if (++cell >= NUMCELLS)
2545 return (gdbarch_addr_bit (current_gdbarch) / 8 * 2);
2549 paddr (CORE_ADDR addr)
2551 return phex (addr, gdbarch_addr_bit (current_gdbarch) / 8);
2555 paddr_nz (CORE_ADDR addr)
2557 return phex_nz (addr, gdbarch_addr_bit (current_gdbarch) / 8);
2561 paddress (CORE_ADDR addr)
2563 /* Truncate address to the size of a target address, avoiding shifts
2564 larger or equal than the width of a CORE_ADDR. The local
2565 variable ADDR_BIT stops the compiler reporting a shift overflow
2566 when it won't occur. */
2567 /* NOTE: This assumes that the significant address information is
2568 kept in the least significant bits of ADDR - the upper bits were
2569 either zero or sign extended. Should gdbarch_address_to_pointer or
2570 some ADDRESS_TO_PRINTABLE() be used to do the conversion? */
2572 int addr_bit = gdbarch_addr_bit (current_gdbarch);
2574 if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT))
2575 addr &= ((CORE_ADDR) 1 << addr_bit) - 1;
2576 return hex_string (addr);
2580 decimal2str (char *sign, ULONGEST addr, int width)
2582 /* Steal code from valprint.c:print_decimal(). Should this worry
2583 about the real size of addr as the above does? */
2584 unsigned long temp[3];
2585 char *str = get_cell ();
2590 temp[i] = addr % (1000 * 1000 * 1000);
2591 addr /= (1000 * 1000 * 1000);
2595 while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0])));
2604 xsnprintf (str, CELLSIZE, "%s%0*lu", sign, width, temp[0]);
2607 xsnprintf (str, CELLSIZE, "%s%0*lu%09lu", sign, width,
2611 xsnprintf (str, CELLSIZE, "%s%0*lu%09lu%09lu", sign, width,
2612 temp[2], temp[1], temp[0]);
2615 internal_error (__FILE__, __LINE__,
2616 _("failed internal consistency check"));
2623 octal2str (ULONGEST addr, int width)
2625 unsigned long temp[3];
2626 char *str = get_cell ();
2631 temp[i] = addr % (0100000 * 0100000);
2632 addr /= (0100000 * 0100000);
2636 while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0])));
2646 xsnprintf (str, CELLSIZE, "%*o", width, 0);
2648 xsnprintf (str, CELLSIZE, "0%0*lo", width, temp[0]);
2651 xsnprintf (str, CELLSIZE, "0%0*lo%010lo", width, temp[1], temp[0]);
2654 xsnprintf (str, CELLSIZE, "0%0*lo%010lo%010lo", width,
2655 temp[2], temp[1], temp[0]);
2658 internal_error (__FILE__, __LINE__,
2659 _("failed internal consistency check"));
2666 paddr_u (CORE_ADDR addr)
2668 return decimal2str ("", addr, 0);
2672 paddr_d (LONGEST addr)
2675 return decimal2str ("-", -addr, 0);
2677 return decimal2str ("", addr, 0);
2680 /* Eliminate warning from compiler on 32-bit systems. */
2681 static int thirty_two = 32;
2684 phex (ULONGEST l, int sizeof_l)
2692 xsnprintf (str, CELLSIZE, "%08lx%08lx",
2693 (unsigned long) (l >> thirty_two),
2694 (unsigned long) (l & 0xffffffff));
2698 xsnprintf (str, CELLSIZE, "%08lx", (unsigned long) l);
2702 xsnprintf (str, CELLSIZE, "%04x", (unsigned short) (l & 0xffff));
2705 str = phex (l, sizeof (l));
2713 phex_nz (ULONGEST l, int sizeof_l)
2721 unsigned long high = (unsigned long) (l >> thirty_two);
2724 xsnprintf (str, CELLSIZE, "%lx",
2725 (unsigned long) (l & 0xffffffff));
2727 xsnprintf (str, CELLSIZE, "%lx%08lx", high,
2728 (unsigned long) (l & 0xffffffff));
2733 xsnprintf (str, CELLSIZE, "%lx", (unsigned long) l);
2737 xsnprintf (str, CELLSIZE, "%x", (unsigned short) (l & 0xffff));
2740 str = phex_nz (l, sizeof (l));
2747 /* Converts a LONGEST to a C-format hexadecimal literal and stores it
2748 in a static string. Returns a pointer to this string. */
2750 hex_string (LONGEST num)
2752 char *result = get_cell ();
2753 xsnprintf (result, CELLSIZE, "0x%s", phex_nz (num, sizeof (num)));
2757 /* Converts a LONGEST number to a C-format hexadecimal literal and
2758 stores it in a static string. Returns a pointer to this string
2759 that is valid until the next call. The number is padded on the
2760 left with 0s to at least WIDTH characters. */
2762 hex_string_custom (LONGEST num, int width)
2764 char *result = get_cell ();
2765 char *result_end = result + CELLSIZE - 1;
2766 const char *hex = phex_nz (num, sizeof (num));
2767 int hex_len = strlen (hex);
2769 if (hex_len > width)
2771 if (width + 2 >= CELLSIZE)
2772 internal_error (__FILE__, __LINE__,
2773 _("hex_string_custom: insufficient space to store result"));
2775 strcpy (result_end - width - 2, "0x");
2776 memset (result_end - width, '0', width);
2777 strcpy (result_end - hex_len, hex);
2778 return result_end - width - 2;
2781 /* Convert VAL to a numeral in the given radix. For
2782 * radix 10, IS_SIGNED may be true, indicating a signed quantity;
2783 * otherwise VAL is interpreted as unsigned. If WIDTH is supplied,
2784 * it is the minimum width (0-padded if needed). USE_C_FORMAT means
2785 * to use C format in all cases. If it is false, then 'x'
2786 * and 'o' formats do not include a prefix (0x or leading 0). */
2789 int_string (LONGEST val, int radix, int is_signed, int width,
2798 result = hex_string (val);
2800 result = hex_string_custom (val, width);
2807 if (is_signed && val < 0)
2808 return decimal2str ("-", -val, width);
2810 return decimal2str ("", val, width);
2814 char *result = octal2str (val, width);
2815 if (use_c_format || val == 0)
2821 internal_error (__FILE__, __LINE__,
2822 _("failed internal consistency check"));
2826 /* Convert a CORE_ADDR into a string. */
2828 core_addr_to_string (const CORE_ADDR addr)
2830 char *str = get_cell ();
2832 strcat (str, phex (addr, sizeof (addr)));
2837 core_addr_to_string_nz (const CORE_ADDR addr)
2839 char *str = get_cell ();
2841 strcat (str, phex_nz (addr, sizeof (addr)));
2845 /* Convert a string back into a CORE_ADDR. */
2847 string_to_core_addr (const char *my_string)
2849 int addr_bit = gdbarch_addr_bit (current_gdbarch);
2852 if (my_string[0] == '0' && tolower (my_string[1]) == 'x')
2854 /* Assume that it is in hex. */
2856 for (i = 2; my_string[i] != '\0'; i++)
2858 if (isdigit (my_string[i]))
2859 addr = (my_string[i] - '0') + (addr * 16);
2860 else if (isxdigit (my_string[i]))
2861 addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16);
2863 error (_("invalid hex \"%s\""), my_string);
2866 /* Not very modular, but if the executable format expects
2867 addresses to be sign-extended, then do so if the address was
2868 specified with only 32 significant bits. Really this should
2869 be determined by the target architecture, not by the object
2871 if (i - 2 == addr_bit / 4
2873 && bfd_get_sign_extend_vma (exec_bfd))
2874 addr = (addr ^ ((CORE_ADDR) 1 << (addr_bit - 1)))
2875 - ((CORE_ADDR) 1 << (addr_bit - 1));
2879 /* Assume that it is in decimal. */
2881 for (i = 0; my_string[i] != '\0'; i++)
2883 if (isdigit (my_string[i]))
2884 addr = (my_string[i] - '0') + (addr * 10);
2886 error (_("invalid decimal \"%s\""), my_string);
2894 host_address_to_string (const void *addr)
2896 char *str = get_cell ();
2897 sprintf (str, "0x%lx", (unsigned long) addr);
2902 gdb_realpath (const char *filename)
2904 /* Method 1: The system has a compile time upper bound on a filename
2905 path. Use that and realpath() to canonicalize the name. This is
2906 the most common case. Note that, if there isn't a compile time
2907 upper bound, you want to avoid realpath() at all costs. */
2908 #if defined(HAVE_REALPATH)
2910 # if defined (PATH_MAX)
2912 # define USE_REALPATH
2913 # elif defined (MAXPATHLEN)
2914 char buf[MAXPATHLEN];
2915 # define USE_REALPATH
2917 # if defined (USE_REALPATH)
2918 const char *rp = realpath (filename, buf);
2921 return xstrdup (rp);
2924 #endif /* HAVE_REALPATH */
2926 /* Method 2: The host system (i.e., GNU) has the function
2927 canonicalize_file_name() which malloc's a chunk of memory and
2928 returns that, use that. */
2929 #if defined(HAVE_CANONICALIZE_FILE_NAME)
2931 char *rp = canonicalize_file_name (filename);
2933 return xstrdup (filename);
2939 /* FIXME: cagney/2002-11-13:
2941 Method 2a: Use realpath() with a NULL buffer. Some systems, due
2942 to the problems described in in method 3, have modified their
2943 realpath() implementation so that it will allocate a buffer when
2944 NULL is passed in. Before this can be used, though, some sort of
2945 configure time test would need to be added. Otherwize the code
2946 will likely core dump. */
2948 /* Method 3: Now we're getting desperate! The system doesn't have a
2949 compile time buffer size and no alternative function. Query the
2950 OS, using pathconf(), for the buffer limit. Care is needed
2951 though, some systems do not limit PATH_MAX (return -1 for
2952 pathconf()) making it impossible to pass a correctly sized buffer
2953 to realpath() (it could always overflow). On those systems, we
2955 #if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
2957 /* Find out the max path size. */
2958 long path_max = pathconf ("/", _PC_PATH_MAX);
2961 /* PATH_MAX is bounded. */
2962 char *buf = alloca (path_max);
2963 char *rp = realpath (filename, buf);
2964 return xstrdup (rp ? rp : filename);
2969 /* This system is a lost cause, just dup the buffer. */
2970 return xstrdup (filename);
2973 /* Return a copy of FILENAME, with its directory prefix canonicalized
2977 xfullpath (const char *filename)
2979 const char *base_name = lbasename (filename);
2984 /* Extract the basename of filename, and return immediately
2985 a copy of filename if it does not contain any directory prefix. */
2986 if (base_name == filename)
2987 return xstrdup (filename);
2989 dir_name = alloca ((size_t) (base_name - filename + 2));
2990 /* Allocate enough space to store the dir_name + plus one extra
2991 character sometimes needed under Windows (see below), and
2992 then the closing \000 character */
2993 strncpy (dir_name, filename, base_name - filename);
2994 dir_name[base_name - filename] = '\000';
2996 #ifdef HAVE_DOS_BASED_FILE_SYSTEM
2997 /* We need to be careful when filename is of the form 'd:foo', which
2998 is equivalent of d:./foo, which is totally different from d:/foo. */
2999 if (strlen (dir_name) == 2 && isalpha (dir_name[0]) && dir_name[1] == ':')
3002 dir_name[3] = '\000';
3006 /* Canonicalize the directory prefix, and build the resulting
3007 filename. If the dirname realpath already contains an ending
3008 directory separator, avoid doubling it. */
3009 real_path = gdb_realpath (dir_name);
3010 if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1]))
3011 result = concat (real_path, base_name, (char *)NULL);
3013 result = concat (real_path, SLASH_STRING, base_name, (char *)NULL);
3020 /* This is the 32-bit CRC function used by the GNU separate debug
3021 facility. An executable may contain a section named
3022 .gnu_debuglink, which holds the name of a separate executable file
3023 containing its debug info, and a checksum of that file's contents,
3024 computed using this function. */
3026 gnu_debuglink_crc32 (unsigned long crc, unsigned char *buf, size_t len)
3028 static const unsigned long crc32_table[256] = {
3029 0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
3030 0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
3031 0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
3032 0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
3033 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
3034 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
3035 0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
3036 0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
3037 0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
3038 0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
3039 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
3040 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
3041 0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
3042 0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
3043 0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
3044 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
3045 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
3046 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
3047 0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
3048 0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
3049 0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
3050 0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
3051 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
3052 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
3053 0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
3054 0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
3055 0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
3056 0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
3057 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
3058 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
3059 0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
3060 0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
3061 0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
3062 0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
3063 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
3064 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
3065 0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
3066 0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
3067 0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
3068 0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
3069 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
3070 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
3071 0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
3072 0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
3073 0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
3074 0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
3075 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
3076 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
3077 0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
3078 0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
3079 0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
3084 crc = ~crc & 0xffffffff;
3085 for (end = buf + len; buf < end; ++buf)
3086 crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8);
3087 return ~crc & 0xffffffff;;
3091 align_up (ULONGEST v, int n)
3093 /* Check that N is really a power of two. */
3094 gdb_assert (n && (n & (n-1)) == 0);
3095 return (v + n - 1) & -n;
3099 align_down (ULONGEST v, int n)
3101 /* Check that N is really a power of two. */
3102 gdb_assert (n && (n & (n-1)) == 0);
3106 /* Allocation function for the libiberty hash table which uses an
3107 obstack. The obstack is passed as DATA. */
3110 hashtab_obstack_allocate (void *data, size_t size, size_t count)
3112 unsigned int total = size * count;
3113 void *ptr = obstack_alloc ((struct obstack *) data, total);
3114 memset (ptr, 0, total);
3118 /* Trivial deallocation function for the libiberty splay tree and hash
3119 table - don't deallocate anything. Rely on later deletion of the
3120 obstack. DATA will be the obstack, although it is not needed
3124 dummy_obstack_deallocate (void *object, void *data)
3129 /* The bit offset of the highest byte in a ULONGEST, for overflow
3132 #define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT)
3134 /* True (non-zero) iff DIGIT is a valid digit in radix BASE,
3135 where 2 <= BASE <= 36. */
3138 is_digit_in_base (unsigned char digit, int base)
3140 if (!isalnum (digit))
3143 return (isdigit (digit) && digit < base + '0');
3145 return (isdigit (digit) || tolower (digit) < base - 10 + 'a');
3149 digit_to_int (unsigned char c)
3154 return tolower (c) - 'a' + 10;
3157 /* As for strtoul, but for ULONGEST results. */
3160 strtoulst (const char *num, const char **trailer, int base)
3162 unsigned int high_part;
3167 /* Skip leading whitespace. */
3168 while (isspace (num[i]))
3171 /* Handle prefixes. */
3174 else if (num[i] == '-')
3180 if (base == 0 || base == 16)
3182 if (num[i] == '0' && (num[i + 1] == 'x' || num[i + 1] == 'X'))
3190 if (base == 0 && num[i] == '0')
3196 if (base < 2 || base > 36)
3202 result = high_part = 0;
3203 for (; is_digit_in_base (num[i], base); i += 1)
3205 result = result * base + digit_to_int (num[i]);
3206 high_part = high_part * base + (unsigned int) (result >> HIGH_BYTE_POSN);
3207 result &= ((ULONGEST) 1 << HIGH_BYTE_POSN) - 1;
3208 if (high_part > 0xff)
3211 result = ~ (ULONGEST) 0;
3218 if (trailer != NULL)
3221 result = result + ((ULONGEST) high_part << HIGH_BYTE_POSN);
3228 /* Simple, portable version of dirname that does not modify its
3232 ldirname (const char *filename)
3234 const char *base = lbasename (filename);
3237 while (base > filename && IS_DIR_SEPARATOR (base[-1]))
3240 if (base == filename)
3243 dirname = xmalloc (base - filename + 2);
3244 memcpy (dirname, filename, base - filename);
3246 /* On DOS based file systems, convert "d:foo" to "d:.", so that we
3247 create "d:./bar" later instead of the (different) "d:/bar". */
3248 if (base - filename == 2 && IS_ABSOLUTE_PATH (base)
3249 && !IS_DIR_SEPARATOR (filename[0]))
3250 dirname[base++ - filename] = '.';
3252 dirname[base - filename] = '\0';