1 /* Print values for GDB, the GNU debugger.
3 Copyright (C) 1986-2015 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
30 #include "floatformat.h"
33 #include "extension.h"
35 #include "gdb_obstack.h"
39 /* Maximum number of wchars returned from wchar_iterate. */
42 /* A convenience macro to compute the size of a wchar_t buffer containing X
44 #define WCHAR_BUFLEN(X) ((X) * sizeof (gdb_wchar_t))
46 /* Character buffer size saved while iterating over wchars. */
47 #define WCHAR_BUFLEN_MAX WCHAR_BUFLEN (MAX_WCHARS)
49 /* A structure to encapsulate state information from iterated
50 character conversions. */
51 struct converted_character
53 /* The number of characters converted. */
56 /* The result of the conversion. See charset.h for more. */
57 enum wchar_iterate_result result;
59 /* The (saved) converted character(s). */
60 gdb_wchar_t chars[WCHAR_BUFLEN_MAX];
62 /* The first converted target byte. */
65 /* The number of bytes converted. */
68 /* How many times this character(s) is repeated. */
72 typedef struct converted_character converted_character_d;
73 DEF_VEC_O (converted_character_d);
75 /* Command lists for set/show print raw. */
76 struct cmd_list_element *setprintrawlist;
77 struct cmd_list_element *showprintrawlist;
79 /* Prototypes for local functions */
81 static int partial_memory_read (CORE_ADDR memaddr, gdb_byte *myaddr,
82 int len, int *errptr);
84 static void show_print (char *, int);
86 static void set_print (char *, int);
88 static void set_radix (char *, int);
90 static void show_radix (char *, int);
92 static void set_input_radix (char *, int, struct cmd_list_element *);
94 static void set_input_radix_1 (int, unsigned);
96 static void set_output_radix (char *, int, struct cmd_list_element *);
98 static void set_output_radix_1 (int, unsigned);
100 void _initialize_valprint (void);
102 #define PRINT_MAX_DEFAULT 200 /* Start print_max off at this value. */
104 struct value_print_options user_print_options =
106 Val_prettyformat_default, /* prettyformat */
107 0, /* prettyformat_arrays */
108 0, /* prettyformat_structs */
111 1, /* addressprint */
113 PRINT_MAX_DEFAULT, /* print_max */
114 10, /* repeat_count_threshold */
115 0, /* output_format */
117 0, /* stop_print_at_null */
118 0, /* print_array_indexes */
120 1, /* static_field_print */
121 1, /* pascal_static_field_print */
127 /* Initialize *OPTS to be a copy of the user print options. */
129 get_user_print_options (struct value_print_options *opts)
131 *opts = user_print_options;
134 /* Initialize *OPTS to be a copy of the user print options, but with
135 pretty-formatting disabled. */
137 get_no_prettyformat_print_options (struct value_print_options *opts)
139 *opts = user_print_options;
140 opts->prettyformat = Val_no_prettyformat;
143 /* Initialize *OPTS to be a copy of the user print options, but using
144 FORMAT as the formatting option. */
146 get_formatted_print_options (struct value_print_options *opts,
149 *opts = user_print_options;
150 opts->format = format;
154 show_print_max (struct ui_file *file, int from_tty,
155 struct cmd_list_element *c, const char *value)
157 fprintf_filtered (file,
158 _("Limit on string chars or array "
159 "elements to print is %s.\n"),
164 /* Default input and output radixes, and output format letter. */
166 unsigned input_radix = 10;
168 show_input_radix (struct ui_file *file, int from_tty,
169 struct cmd_list_element *c, const char *value)
171 fprintf_filtered (file,
172 _("Default input radix for entering numbers is %s.\n"),
176 unsigned output_radix = 10;
178 show_output_radix (struct ui_file *file, int from_tty,
179 struct cmd_list_element *c, const char *value)
181 fprintf_filtered (file,
182 _("Default output radix for printing of values is %s.\n"),
186 /* By default we print arrays without printing the index of each element in
187 the array. This behavior can be changed by setting PRINT_ARRAY_INDEXES. */
190 show_print_array_indexes (struct ui_file *file, int from_tty,
191 struct cmd_list_element *c, const char *value)
193 fprintf_filtered (file, _("Printing of array indexes is %s.\n"), value);
196 /* Print repeat counts if there are more than this many repetitions of an
197 element in an array. Referenced by the low level language dependent
201 show_repeat_count_threshold (struct ui_file *file, int from_tty,
202 struct cmd_list_element *c, const char *value)
204 fprintf_filtered (file, _("Threshold for repeated print elements is %s.\n"),
208 /* If nonzero, stops printing of char arrays at first null. */
211 show_stop_print_at_null (struct ui_file *file, int from_tty,
212 struct cmd_list_element *c, const char *value)
214 fprintf_filtered (file,
215 _("Printing of char arrays to stop "
216 "at first null char is %s.\n"),
220 /* Controls pretty printing of structures. */
223 show_prettyformat_structs (struct ui_file *file, int from_tty,
224 struct cmd_list_element *c, const char *value)
226 fprintf_filtered (file, _("Pretty formatting of structures is %s.\n"), value);
229 /* Controls pretty printing of arrays. */
232 show_prettyformat_arrays (struct ui_file *file, int from_tty,
233 struct cmd_list_element *c, const char *value)
235 fprintf_filtered (file, _("Pretty formatting of arrays is %s.\n"), value);
238 /* If nonzero, causes unions inside structures or other unions to be
242 show_unionprint (struct ui_file *file, int from_tty,
243 struct cmd_list_element *c, const char *value)
245 fprintf_filtered (file,
246 _("Printing of unions interior to structures is %s.\n"),
250 /* If nonzero, causes machine addresses to be printed in certain contexts. */
253 show_addressprint (struct ui_file *file, int from_tty,
254 struct cmd_list_element *c, const char *value)
256 fprintf_filtered (file, _("Printing of addresses is %s.\n"), value);
260 show_symbol_print (struct ui_file *file, int from_tty,
261 struct cmd_list_element *c, const char *value)
263 fprintf_filtered (file,
264 _("Printing of symbols when printing pointers is %s.\n"),
270 /* A helper function for val_print. When printing in "summary" mode,
271 we want to print scalar arguments, but not aggregate arguments.
272 This function distinguishes between the two. */
275 val_print_scalar_type_p (struct type *type)
277 type = check_typedef (type);
278 while (TYPE_CODE (type) == TYPE_CODE_REF)
280 type = TYPE_TARGET_TYPE (type);
281 type = check_typedef (type);
283 switch (TYPE_CODE (type))
285 case TYPE_CODE_ARRAY:
286 case TYPE_CODE_STRUCT:
287 case TYPE_CODE_UNION:
289 case TYPE_CODE_STRING:
296 /* See its definition in value.h. */
299 valprint_check_validity (struct ui_file *stream,
302 const struct value *val)
304 type = check_typedef (type);
306 if (TYPE_CODE (type) != TYPE_CODE_UNION
307 && TYPE_CODE (type) != TYPE_CODE_STRUCT
308 && TYPE_CODE (type) != TYPE_CODE_ARRAY)
310 if (value_bits_any_optimized_out (val,
311 TARGET_CHAR_BIT * embedded_offset,
312 TARGET_CHAR_BIT * TYPE_LENGTH (type)))
314 val_print_optimized_out (val, stream);
318 if (value_bits_synthetic_pointer (val, TARGET_CHAR_BIT * embedded_offset,
319 TARGET_CHAR_BIT * TYPE_LENGTH (type)))
321 fputs_filtered (_("<synthetic pointer>"), stream);
325 if (!value_bytes_available (val, embedded_offset, TYPE_LENGTH (type)))
327 val_print_unavailable (stream);
336 val_print_optimized_out (const struct value *val, struct ui_file *stream)
338 if (val != NULL && value_lval_const (val) == lval_register)
339 val_print_not_saved (stream);
341 fprintf_filtered (stream, _("<optimized out>"));
345 val_print_not_saved (struct ui_file *stream)
347 fprintf_filtered (stream, _("<not saved>"));
351 val_print_unavailable (struct ui_file *stream)
353 fprintf_filtered (stream, _("<unavailable>"));
357 val_print_invalid_address (struct ui_file *stream)
359 fprintf_filtered (stream, _("<invalid address>"));
362 /* Print a pointer based on the type of its target.
364 Arguments to this functions are roughly the same as those in
365 generic_val_print. A difference is that ADDRESS is the address to print,
366 with embedded_offset already added. ELTTYPE represents
367 the pointed type after check_typedef. */
370 print_unpacked_pointer (struct type *type, struct type *elttype,
371 CORE_ADDR address, struct ui_file *stream,
372 const struct value_print_options *options)
374 struct gdbarch *gdbarch = get_type_arch (type);
376 if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
378 /* Try to print what function it points to. */
379 print_function_pointer_address (options, gdbarch, address, stream);
383 if (options->symbol_print)
384 print_address_demangle (options, gdbarch, address, stream, demangle);
385 else if (options->addressprint)
386 fputs_filtered (paddress (gdbarch, address), stream);
389 /* generic_val_print helper for TYPE_CODE_ARRAY. */
392 generic_val_print_array (struct type *type, const gdb_byte *valaddr,
393 int embedded_offset, CORE_ADDR address,
394 struct ui_file *stream, int recurse,
395 const struct value *original_value,
396 const struct value_print_options *options)
398 struct type *unresolved_elttype = TYPE_TARGET_TYPE (type);
399 struct type *elttype = check_typedef (unresolved_elttype);
401 if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (unresolved_elttype) > 0)
403 LONGEST low_bound, high_bound;
405 if (!get_array_bounds (type, &low_bound, &high_bound))
406 error (_("Could not determine the array high bound"));
408 if (options->prettyformat_arrays)
410 print_spaces_filtered (2 + 2 * recurse, stream);
413 fprintf_filtered (stream, "{");
414 val_print_array_elements (type, valaddr, embedded_offset,
416 recurse, original_value, options, 0);
417 fprintf_filtered (stream, "}");
421 /* Array of unspecified length: treat like pointer to first elt. */
422 print_unpacked_pointer (type, elttype, address + embedded_offset, stream,
428 /* generic_val_print helper for TYPE_CODE_PTR. */
431 generic_val_print_ptr (struct type *type, const gdb_byte *valaddr,
432 int embedded_offset, struct ui_file *stream,
433 const struct value *original_value,
434 const struct value_print_options *options)
436 if (options->format && options->format != 's')
438 val_print_scalar_formatted (type, valaddr, embedded_offset,
439 original_value, options, 0, stream);
443 struct type *unresolved_elttype = TYPE_TARGET_TYPE(type);
444 struct type *elttype = check_typedef (unresolved_elttype);
445 CORE_ADDR addr = unpack_pointer (type, valaddr + embedded_offset);
447 print_unpacked_pointer (type, elttype, addr, stream, options);
452 /* generic_val_print helper for TYPE_CODE_MEMBERPTR. */
455 generic_val_print_memberptr (struct type *type, const gdb_byte *valaddr,
456 int embedded_offset, struct ui_file *stream,
457 const struct value *original_value,
458 const struct value_print_options *options)
460 val_print_scalar_formatted (type, valaddr, embedded_offset,
461 original_value, options, 0, stream);
464 /* generic_val_print helper for TYPE_CODE_REF. */
467 generic_val_print_ref (struct type *type, const gdb_byte *valaddr,
468 int embedded_offset, struct ui_file *stream, int recurse,
469 const struct value *original_value,
470 const struct value_print_options *options)
472 struct gdbarch *gdbarch = get_type_arch (type);
473 struct type *elttype = check_typedef (TYPE_TARGET_TYPE (type));
475 if (options->addressprint)
478 = extract_typed_address (valaddr + embedded_offset, type);
480 fprintf_filtered (stream, "@");
481 fputs_filtered (paddress (gdbarch, addr), stream);
482 if (options->deref_ref)
483 fputs_filtered (": ", stream);
485 /* De-reference the reference. */
486 if (options->deref_ref)
488 if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
490 struct value *deref_val;
492 deref_val = coerce_ref_if_computed (original_value);
493 if (deref_val != NULL)
495 /* More complicated computed references are not supported. */
496 gdb_assert (embedded_offset == 0);
499 deref_val = value_at (TYPE_TARGET_TYPE (type),
500 unpack_pointer (type,
502 + embedded_offset)));
504 common_val_print (deref_val, stream, recurse, options,
508 fputs_filtered ("???", stream);
512 /* generic_val_print helper for TYPE_CODE_ENUM. */
515 generic_val_print_enum (struct type *type, const gdb_byte *valaddr,
516 int embedded_offset, struct ui_file *stream,
517 const struct value *original_value,
518 const struct value_print_options *options)
526 val_print_scalar_formatted (type, valaddr, embedded_offset,
527 original_value, options, 0, stream);
530 len = TYPE_NFIELDS (type);
531 val = unpack_long (type, valaddr + embedded_offset);
532 for (i = 0; i < len; i++)
535 if (val == TYPE_FIELD_ENUMVAL (type, i))
542 fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
544 else if (TYPE_FLAG_ENUM (type))
548 /* We have a "flag" enum, so we try to decompose it into
549 pieces as appropriate. A flag enum has disjoint
550 constants by definition. */
551 fputs_filtered ("(", stream);
552 for (i = 0; i < len; ++i)
556 if ((val & TYPE_FIELD_ENUMVAL (type, i)) != 0)
559 fputs_filtered (" | ", stream);
562 val &= ~TYPE_FIELD_ENUMVAL (type, i);
563 fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
567 if (first || val != 0)
570 fputs_filtered (" | ", stream);
571 fputs_filtered ("unknown: ", stream);
572 print_longest (stream, 'd', 0, val);
575 fputs_filtered (")", stream);
578 print_longest (stream, 'd', 0, val);
581 /* generic_val_print helper for TYPE_CODE_FLAGS. */
584 generic_val_print_flags (struct type *type, const gdb_byte *valaddr,
585 int embedded_offset, struct ui_file *stream,
586 const struct value *original_value,
587 const struct value_print_options *options)
591 val_print_scalar_formatted (type, valaddr, embedded_offset, original_value,
594 val_print_type_code_flags (type, valaddr + embedded_offset, stream);
597 /* generic_val_print helper for TYPE_CODE_FUNC and TYPE_CODE_METHOD. */
600 generic_val_print_func (struct type *type, const gdb_byte *valaddr,
601 int embedded_offset, CORE_ADDR address,
602 struct ui_file *stream,
603 const struct value *original_value,
604 const struct value_print_options *options)
606 struct gdbarch *gdbarch = get_type_arch (type);
610 val_print_scalar_formatted (type, valaddr, embedded_offset,
611 original_value, options, 0, stream);
615 /* FIXME, we should consider, at least for ANSI C language,
616 eliminating the distinction made between FUNCs and POINTERs
618 fprintf_filtered (stream, "{");
619 type_print (type, "", stream, -1);
620 fprintf_filtered (stream, "} ");
621 /* Try to print what function it points to, and its address. */
622 print_address_demangle (options, gdbarch, address, stream, demangle);
626 /* generic_val_print helper for TYPE_CODE_BOOL. */
629 generic_val_print_bool (struct type *type, const gdb_byte *valaddr,
630 int embedded_offset, struct ui_file *stream,
631 const struct value *original_value,
632 const struct value_print_options *options,
633 const struct generic_val_print_decorations *decorations)
637 if (options->format || options->output_format)
639 struct value_print_options opts = *options;
640 opts.format = (options->format ? options->format
641 : options->output_format);
642 val_print_scalar_formatted (type, valaddr, embedded_offset,
643 original_value, &opts, 0, stream);
647 val = unpack_long (type, valaddr + embedded_offset);
649 fputs_filtered (decorations->false_name, stream);
651 fputs_filtered (decorations->true_name, stream);
653 print_longest (stream, 'd', 0, val);
657 /* generic_val_print helper for TYPE_CODE_INT. */
660 generic_val_print_int (struct type *type, const gdb_byte *valaddr,
661 int embedded_offset, struct ui_file *stream,
662 const struct value *original_value,
663 const struct value_print_options *options)
665 if (options->format || options->output_format)
667 struct value_print_options opts = *options;
669 opts.format = (options->format ? options->format
670 : options->output_format);
671 val_print_scalar_formatted (type, valaddr, embedded_offset,
672 original_value, &opts, 0, stream);
675 val_print_type_code_int (type, valaddr + embedded_offset, stream);
678 /* A generic val_print that is suitable for use by language
679 implementations of the la_val_print method. This function can
680 handle most type codes, though not all, notably exception
681 TYPE_CODE_UNION and TYPE_CODE_STRUCT, which must be implemented by
684 Most arguments are as to val_print.
686 The additional DECORATIONS argument can be used to customize the
687 output in some small, language-specific ways. */
690 generic_val_print (struct type *type, const gdb_byte *valaddr,
691 int embedded_offset, CORE_ADDR address,
692 struct ui_file *stream, int recurse,
693 const struct value *original_value,
694 const struct value_print_options *options,
695 const struct generic_val_print_decorations *decorations)
697 struct type *unresolved_type = type;
700 type = check_typedef (type);
701 switch (TYPE_CODE (type))
703 case TYPE_CODE_ARRAY:
704 generic_val_print_array (type, valaddr, embedded_offset, address, stream,
705 recurse, original_value, options);
708 case TYPE_CODE_MEMBERPTR:
709 generic_val_print_memberptr (type, valaddr, embedded_offset, stream,
710 original_value, options);
714 generic_val_print_ptr (type, valaddr, embedded_offset, stream,
715 original_value, options);
719 generic_val_print_ref (type, valaddr, embedded_offset, stream, recurse,
720 original_value, options);
724 generic_val_print_enum (type, valaddr, embedded_offset, stream,
725 original_value, options);
728 case TYPE_CODE_FLAGS:
729 generic_val_print_flags (type, valaddr, embedded_offset, stream,
730 original_value, options);
734 case TYPE_CODE_METHOD:
735 generic_val_print_func (type, valaddr, embedded_offset, address, stream,
736 original_value, options);
740 generic_val_print_bool (type, valaddr, embedded_offset, stream,
741 original_value, options, decorations);
744 case TYPE_CODE_RANGE:
745 /* FIXME: create_static_range_type does not set the unsigned bit in a
746 range type (I think it probably should copy it from the
747 target type), so we won't print values which are too large to
748 fit in a signed integer correctly. */
749 /* FIXME: Doesn't handle ranges of enums correctly. (Can't just
750 print with the target type, though, because the size of our
751 type and the target type might differ). */
756 generic_val_print_int (type, valaddr, embedded_offset, stream,
757 original_value, options);
761 if (options->format || options->output_format)
763 struct value_print_options opts = *options;
765 opts.format = (options->format ? options->format
766 : options->output_format);
767 val_print_scalar_formatted (type, valaddr, embedded_offset,
768 original_value, &opts, 0, stream);
772 val = unpack_long (type, valaddr + embedded_offset);
773 if (TYPE_UNSIGNED (type))
774 fprintf_filtered (stream, "%u", (unsigned int) val);
776 fprintf_filtered (stream, "%d", (int) val);
777 fputs_filtered (" ", stream);
778 LA_PRINT_CHAR (val, unresolved_type, stream);
785 val_print_scalar_formatted (type, valaddr, embedded_offset,
786 original_value, options, 0, stream);
790 print_floating (valaddr + embedded_offset, type, stream);
794 case TYPE_CODE_DECFLOAT:
796 val_print_scalar_formatted (type, valaddr, embedded_offset,
797 original_value, options, 0, stream);
799 print_decimal_floating (valaddr + embedded_offset,
804 fputs_filtered (decorations->void_name, stream);
807 case TYPE_CODE_ERROR:
808 fprintf_filtered (stream, "%s", TYPE_ERROR_NAME (type));
811 case TYPE_CODE_UNDEF:
812 /* This happens (without TYPE_FLAG_STUB set) on systems which
813 don't use dbx xrefs (NO_DBX_XREFS in gcc) if a file has a
814 "struct foo *bar" and no complete type for struct foo in that
816 fprintf_filtered (stream, _("<incomplete type>"));
819 case TYPE_CODE_COMPLEX:
820 fprintf_filtered (stream, "%s", decorations->complex_prefix);
822 val_print_scalar_formatted (TYPE_TARGET_TYPE (type),
823 valaddr, embedded_offset,
824 original_value, options, 0, stream);
826 print_floating (valaddr + embedded_offset,
827 TYPE_TARGET_TYPE (type),
829 fprintf_filtered (stream, "%s", decorations->complex_infix);
831 val_print_scalar_formatted (TYPE_TARGET_TYPE (type),
834 + TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
838 print_floating (valaddr + embedded_offset
839 + TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
840 TYPE_TARGET_TYPE (type),
842 fprintf_filtered (stream, "%s", decorations->complex_suffix);
845 case TYPE_CODE_UNION:
846 case TYPE_CODE_STRUCT:
847 case TYPE_CODE_METHODPTR:
849 error (_("Unhandled type code %d in symbol table."),
855 /* Print using the given LANGUAGE the data of type TYPE located at
856 VALADDR + EMBEDDED_OFFSET (within GDB), which came from the
857 inferior at address ADDRESS + EMBEDDED_OFFSET, onto stdio stream
858 STREAM according to OPTIONS. VAL is the whole object that came
859 from ADDRESS. VALADDR must point to the head of VAL's contents
862 The language printers will pass down an adjusted EMBEDDED_OFFSET to
863 further helper subroutines as subfields of TYPE are printed. In
864 such cases, VALADDR is passed down unadjusted, as well as VAL, so
865 that VAL can be queried for metadata about the contents data being
866 printed, using EMBEDDED_OFFSET as an offset into VAL's contents
867 buffer. For example: "has this field been optimized out", or "I'm
868 printing an object while inspecting a traceframe; has this
869 particular piece of data been collected?".
871 RECURSE indicates the amount of indentation to supply before
872 continuation lines; this amount is roughly twice the value of
876 val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset,
877 CORE_ADDR address, struct ui_file *stream, int recurse,
878 const struct value *val,
879 const struct value_print_options *options,
880 const struct language_defn *language)
883 struct value_print_options local_opts = *options;
884 struct type *real_type = check_typedef (type);
886 if (local_opts.prettyformat == Val_prettyformat_default)
887 local_opts.prettyformat = (local_opts.prettyformat_structs
888 ? Val_prettyformat : Val_no_prettyformat);
892 /* Ensure that the type is complete and not just a stub. If the type is
893 only a stub and we can't find and substitute its complete type, then
894 print appropriate string and return. */
896 if (TYPE_STUB (real_type))
898 fprintf_filtered (stream, _("<incomplete type>"));
903 if (!valprint_check_validity (stream, real_type, embedded_offset, val))
908 ret = apply_ext_lang_val_pretty_printer (type, valaddr, embedded_offset,
909 address, stream, recurse,
910 val, options, language);
915 /* Handle summary mode. If the value is a scalar, print it;
916 otherwise, print an ellipsis. */
917 if (options->summary && !val_print_scalar_type_p (type))
919 fprintf_filtered (stream, "...");
925 language->la_val_print (type, valaddr, embedded_offset, address,
926 stream, recurse, val,
929 CATCH (except, RETURN_MASK_ERROR)
931 fprintf_filtered (stream, _("<error reading variable>"));
936 /* Check whether the value VAL is printable. Return 1 if it is;
937 return 0 and print an appropriate error message to STREAM according to
938 OPTIONS if it is not. */
941 value_check_printable (struct value *val, struct ui_file *stream,
942 const struct value_print_options *options)
946 fprintf_filtered (stream, _("<address of value unknown>"));
950 if (value_entirely_optimized_out (val))
952 if (options->summary && !val_print_scalar_type_p (value_type (val)))
953 fprintf_filtered (stream, "...");
955 val_print_optimized_out (val, stream);
959 if (value_entirely_unavailable (val))
961 if (options->summary && !val_print_scalar_type_p (value_type (val)))
962 fprintf_filtered (stream, "...");
964 val_print_unavailable (stream);
968 if (TYPE_CODE (value_type (val)) == TYPE_CODE_INTERNAL_FUNCTION)
970 fprintf_filtered (stream, _("<internal function %s>"),
971 value_internal_function_name (val));
978 /* Print using the given LANGUAGE the value VAL onto stream STREAM according
981 This is a preferable interface to val_print, above, because it uses
982 GDB's value mechanism. */
985 common_val_print (struct value *val, struct ui_file *stream, int recurse,
986 const struct value_print_options *options,
987 const struct language_defn *language)
989 if (!value_check_printable (val, stream, options))
992 if (language->la_language == language_ada)
993 /* The value might have a dynamic type, which would cause trouble
994 below when trying to extract the value contents (since the value
995 size is determined from the type size which is unknown). So
996 get a fixed representation of our value. */
997 val = ada_to_fixed_value (val);
999 val_print (value_type (val), value_contents_for_printing (val),
1000 value_embedded_offset (val), value_address (val),
1002 val, options, language);
1005 /* Print on stream STREAM the value VAL according to OPTIONS. The value
1006 is printed using the current_language syntax. */
1009 value_print (struct value *val, struct ui_file *stream,
1010 const struct value_print_options *options)
1012 if (!value_check_printable (val, stream, options))
1018 = apply_ext_lang_val_pretty_printer (value_type (val),
1019 value_contents_for_printing (val),
1020 value_embedded_offset (val),
1021 value_address (val),
1023 val, options, current_language);
1029 LA_VALUE_PRINT (val, stream, options);
1032 /* Called by various <lang>_val_print routines to print
1033 TYPE_CODE_INT's. TYPE is the type. VALADDR is the address of the
1034 value. STREAM is where to print the value. */
1037 val_print_type_code_int (struct type *type, const gdb_byte *valaddr,
1038 struct ui_file *stream)
1040 enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
1042 if (TYPE_LENGTH (type) > sizeof (LONGEST))
1046 if (TYPE_UNSIGNED (type)
1047 && extract_long_unsigned_integer (valaddr, TYPE_LENGTH (type),
1050 print_longest (stream, 'u', 0, val);
1054 /* Signed, or we couldn't turn an unsigned value into a
1055 LONGEST. For signed values, one could assume two's
1056 complement (a reasonable assumption, I think) and do
1057 better than this. */
1058 print_hex_chars (stream, (unsigned char *) valaddr,
1059 TYPE_LENGTH (type), byte_order);
1064 print_longest (stream, TYPE_UNSIGNED (type) ? 'u' : 'd', 0,
1065 unpack_long (type, valaddr));
1070 val_print_type_code_flags (struct type *type, const gdb_byte *valaddr,
1071 struct ui_file *stream)
1073 ULONGEST val = unpack_long (type, valaddr);
1074 int bitpos, nfields = TYPE_NFIELDS (type);
1076 fputs_filtered ("[ ", stream);
1077 for (bitpos = 0; bitpos < nfields; bitpos++)
1079 if (TYPE_FIELD_BITPOS (type, bitpos) != -1
1080 && (val & ((ULONGEST)1 << bitpos)))
1082 if (TYPE_FIELD_NAME (type, bitpos))
1083 fprintf_filtered (stream, "%s ", TYPE_FIELD_NAME (type, bitpos));
1085 fprintf_filtered (stream, "#%d ", bitpos);
1088 fputs_filtered ("]", stream);
1091 /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR,
1092 according to OPTIONS and SIZE on STREAM. Format i is not supported
1095 This is how the elements of an array or structure are printed
1099 val_print_scalar_formatted (struct type *type,
1100 const gdb_byte *valaddr, int embedded_offset,
1101 const struct value *val,
1102 const struct value_print_options *options,
1104 struct ui_file *stream)
1106 gdb_assert (val != NULL);
1107 gdb_assert (valaddr == value_contents_for_printing_const (val));
1109 /* If we get here with a string format, try again without it. Go
1110 all the way back to the language printers, which may call us
1112 if (options->format == 's')
1114 struct value_print_options opts = *options;
1117 val_print (type, valaddr, embedded_offset, 0, stream, 0, val, &opts,
1122 /* A scalar object that does not have all bits available can't be
1123 printed, because all bits contribute to its representation. */
1124 if (value_bits_any_optimized_out (val,
1125 TARGET_CHAR_BIT * embedded_offset,
1126 TARGET_CHAR_BIT * TYPE_LENGTH (type)))
1127 val_print_optimized_out (val, stream);
1128 else if (!value_bytes_available (val, embedded_offset, TYPE_LENGTH (type)))
1129 val_print_unavailable (stream);
1131 print_scalar_formatted (valaddr + embedded_offset, type,
1132 options, size, stream);
1135 /* Print a number according to FORMAT which is one of d,u,x,o,b,h,w,g.
1136 The raison d'etre of this function is to consolidate printing of
1137 LONG_LONG's into this one function. The format chars b,h,w,g are
1138 from print_scalar_formatted(). Numbers are printed using C
1141 USE_C_FORMAT means to use C format in all cases. Without it,
1142 'o' and 'x' format do not include the standard C radix prefix
1145 Hilfinger/2004-09-09: USE_C_FORMAT was originally called USE_LOCAL
1146 and was intended to request formating according to the current
1147 language and would be used for most integers that GDB prints. The
1148 exceptional cases were things like protocols where the format of
1149 the integer is a protocol thing, not a user-visible thing). The
1150 parameter remains to preserve the information of what things might
1151 be printed with language-specific format, should we ever resurrect
1155 print_longest (struct ui_file *stream, int format, int use_c_format,
1163 val = int_string (val_long, 10, 1, 0, 1); break;
1165 val = int_string (val_long, 10, 0, 0, 1); break;
1167 val = int_string (val_long, 16, 0, 0, use_c_format); break;
1169 val = int_string (val_long, 16, 0, 2, 1); break;
1171 val = int_string (val_long, 16, 0, 4, 1); break;
1173 val = int_string (val_long, 16, 0, 8, 1); break;
1175 val = int_string (val_long, 16, 0, 16, 1); break;
1178 val = int_string (val_long, 8, 0, 0, use_c_format); break;
1180 internal_error (__FILE__, __LINE__,
1181 _("failed internal consistency check"));
1183 fputs_filtered (val, stream);
1186 /* This used to be a macro, but I don't think it is called often enough
1187 to merit such treatment. */
1188 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
1189 arguments to a function, number in a value history, register number, etc.)
1190 where the value must not be larger than can fit in an int. */
1193 longest_to_int (LONGEST arg)
1195 /* Let the compiler do the work. */
1196 int rtnval = (int) arg;
1198 /* Check for overflows or underflows. */
1199 if (sizeof (LONGEST) > sizeof (int))
1203 error (_("Value out of range."));
1209 /* Print a floating point value of type TYPE (not always a
1210 TYPE_CODE_FLT), pointed to in GDB by VALADDR, on STREAM. */
1213 print_floating (const gdb_byte *valaddr, struct type *type,
1214 struct ui_file *stream)
1218 const struct floatformat *fmt = NULL;
1219 unsigned len = TYPE_LENGTH (type);
1220 enum float_kind kind;
1222 /* If it is a floating-point, check for obvious problems. */
1223 if (TYPE_CODE (type) == TYPE_CODE_FLT)
1224 fmt = floatformat_from_type (type);
1227 kind = floatformat_classify (fmt, valaddr);
1228 if (kind == float_nan)
1230 if (floatformat_is_negative (fmt, valaddr))
1231 fprintf_filtered (stream, "-");
1232 fprintf_filtered (stream, "nan(");
1233 fputs_filtered ("0x", stream);
1234 fputs_filtered (floatformat_mantissa (fmt, valaddr), stream);
1235 fprintf_filtered (stream, ")");
1238 else if (kind == float_infinite)
1240 if (floatformat_is_negative (fmt, valaddr))
1241 fputs_filtered ("-", stream);
1242 fputs_filtered ("inf", stream);
1247 /* NOTE: cagney/2002-01-15: The TYPE passed into print_floating()
1248 isn't necessarily a TYPE_CODE_FLT. Consequently, unpack_double
1249 needs to be used as that takes care of any necessary type
1250 conversions. Such conversions are of course direct to DOUBLEST
1251 and disregard any possible target floating point limitations.
1252 For instance, a u64 would be converted and displayed exactly on a
1253 host with 80 bit DOUBLEST but with loss of information on a host
1254 with 64 bit DOUBLEST. */
1256 doub = unpack_double (type, valaddr, &inv);
1259 fprintf_filtered (stream, "<invalid float value>");
1263 /* FIXME: kettenis/2001-01-20: The following code makes too much
1264 assumptions about the host and target floating point format. */
1266 /* NOTE: cagney/2002-02-03: Since the TYPE of what was passed in may
1267 not necessarily be a TYPE_CODE_FLT, the below ignores that and
1268 instead uses the type's length to determine the precision of the
1269 floating-point value being printed. */
1271 if (len < sizeof (double))
1272 fprintf_filtered (stream, "%.9g", (double) doub);
1273 else if (len == sizeof (double))
1274 fprintf_filtered (stream, "%.17g", (double) doub);
1276 #ifdef PRINTF_HAS_LONG_DOUBLE
1277 fprintf_filtered (stream, "%.35Lg", doub);
1279 /* This at least wins with values that are representable as
1281 fprintf_filtered (stream, "%.17g", (double) doub);
1286 print_decimal_floating (const gdb_byte *valaddr, struct type *type,
1287 struct ui_file *stream)
1289 enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
1290 char decstr[MAX_DECIMAL_STRING];
1291 unsigned len = TYPE_LENGTH (type);
1293 decimal_to_string (valaddr, len, byte_order, decstr);
1294 fputs_filtered (decstr, stream);
1299 print_binary_chars (struct ui_file *stream, const gdb_byte *valaddr,
1300 unsigned len, enum bfd_endian byte_order)
1303 #define BITS_IN_BYTES 8
1309 /* Declared "int" so it will be signed.
1310 This ensures that right shift will shift in zeros. */
1312 const int mask = 0x080;
1314 /* FIXME: We should be not printing leading zeroes in most cases. */
1316 if (byte_order == BFD_ENDIAN_BIG)
1322 /* Every byte has 8 binary characters; peel off
1323 and print from the MSB end. */
1325 for (i = 0; i < (BITS_IN_BYTES * sizeof (*p)); i++)
1327 if (*p & (mask >> i))
1332 fprintf_filtered (stream, "%1d", b);
1338 for (p = valaddr + len - 1;
1342 for (i = 0; i < (BITS_IN_BYTES * sizeof (*p)); i++)
1344 if (*p & (mask >> i))
1349 fprintf_filtered (stream, "%1d", b);
1355 /* VALADDR points to an integer of LEN bytes.
1356 Print it in octal on stream or format it in buf. */
1359 print_octal_chars (struct ui_file *stream, const gdb_byte *valaddr,
1360 unsigned len, enum bfd_endian byte_order)
1363 unsigned char octa1, octa2, octa3, carry;
1366 /* FIXME: We should be not printing leading zeroes in most cases. */
1369 /* Octal is 3 bits, which doesn't fit. Yuk. So we have to track
1370 * the extra bits, which cycle every three bytes:
1372 * Byte side: 0 1 2 3
1374 * bit number 123 456 78 | 9 012 345 6 | 78 901 234 | 567 890 12 |
1376 * Octal side: 0 1 carry 3 4 carry ...
1378 * Cycle number: 0 1 2
1380 * But of course we are printing from the high side, so we have to
1381 * figure out where in the cycle we are so that we end up with no
1382 * left over bits at the end.
1384 #define BITS_IN_OCTAL 3
1385 #define HIGH_ZERO 0340
1386 #define LOW_ZERO 0016
1387 #define CARRY_ZERO 0003
1388 #define HIGH_ONE 0200
1389 #define MID_ONE 0160
1390 #define LOW_ONE 0016
1391 #define CARRY_ONE 0001
1392 #define HIGH_TWO 0300
1393 #define MID_TWO 0070
1394 #define LOW_TWO 0007
1396 /* For 32 we start in cycle 2, with two bits and one bit carry;
1397 for 64 in cycle in cycle 1, with one bit and a two bit carry. */
1399 cycle = (len * BITS_IN_BYTES) % BITS_IN_OCTAL;
1402 fputs_filtered ("0", stream);
1403 if (byte_order == BFD_ENDIAN_BIG)
1412 /* No carry in, carry out two bits. */
1414 octa1 = (HIGH_ZERO & *p) >> 5;
1415 octa2 = (LOW_ZERO & *p) >> 2;
1416 carry = (CARRY_ZERO & *p);
1417 fprintf_filtered (stream, "%o", octa1);
1418 fprintf_filtered (stream, "%o", octa2);
1422 /* Carry in two bits, carry out one bit. */
1424 octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7);
1425 octa2 = (MID_ONE & *p) >> 4;
1426 octa3 = (LOW_ONE & *p) >> 1;
1427 carry = (CARRY_ONE & *p);
1428 fprintf_filtered (stream, "%o", octa1);
1429 fprintf_filtered (stream, "%o", octa2);
1430 fprintf_filtered (stream, "%o", octa3);
1434 /* Carry in one bit, no carry out. */
1436 octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6);
1437 octa2 = (MID_TWO & *p) >> 3;
1438 octa3 = (LOW_TWO & *p);
1440 fprintf_filtered (stream, "%o", octa1);
1441 fprintf_filtered (stream, "%o", octa2);
1442 fprintf_filtered (stream, "%o", octa3);
1446 error (_("Internal error in octal conversion;"));
1450 cycle = cycle % BITS_IN_OCTAL;
1455 for (p = valaddr + len - 1;
1462 /* Carry out, no carry in */
1464 octa1 = (HIGH_ZERO & *p) >> 5;
1465 octa2 = (LOW_ZERO & *p) >> 2;
1466 carry = (CARRY_ZERO & *p);
1467 fprintf_filtered (stream, "%o", octa1);
1468 fprintf_filtered (stream, "%o", octa2);
1472 /* Carry in, carry out */
1474 octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7);
1475 octa2 = (MID_ONE & *p) >> 4;
1476 octa3 = (LOW_ONE & *p) >> 1;
1477 carry = (CARRY_ONE & *p);
1478 fprintf_filtered (stream, "%o", octa1);
1479 fprintf_filtered (stream, "%o", octa2);
1480 fprintf_filtered (stream, "%o", octa3);
1484 /* Carry in, no carry out */
1486 octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6);
1487 octa2 = (MID_TWO & *p) >> 3;
1488 octa3 = (LOW_TWO & *p);
1490 fprintf_filtered (stream, "%o", octa1);
1491 fprintf_filtered (stream, "%o", octa2);
1492 fprintf_filtered (stream, "%o", octa3);
1496 error (_("Internal error in octal conversion;"));
1500 cycle = cycle % BITS_IN_OCTAL;
1506 /* VALADDR points to an integer of LEN bytes.
1507 Print it in decimal on stream or format it in buf. */
1510 print_decimal_chars (struct ui_file *stream, const gdb_byte *valaddr,
1511 unsigned len, enum bfd_endian byte_order)
1514 #define CARRY_OUT( x ) ((x) / TEN) /* extend char to int */
1515 #define CARRY_LEFT( x ) ((x) % TEN)
1516 #define SHIFT( x ) ((x) << 4)
1517 #define LOW_NIBBLE( x ) ( (x) & 0x00F)
1518 #define HIGH_NIBBLE( x ) (((x) & 0x0F0) >> 4)
1521 unsigned char *digits;
1524 int i, j, decimal_digits;
1528 /* Base-ten number is less than twice as many digits
1529 as the base 16 number, which is 2 digits per byte. */
1531 decimal_len = len * 2 * 2;
1532 digits = xmalloc (decimal_len);
1534 for (i = 0; i < decimal_len; i++)
1539 /* Ok, we have an unknown number of bytes of data to be printed in
1542 * Given a hex number (in nibbles) as XYZ, we start by taking X and
1543 * decemalizing it as "x1 x2" in two decimal nibbles. Then we multiply
1544 * the nibbles by 16, add Y and re-decimalize. Repeat with Z.
1546 * The trick is that "digits" holds a base-10 number, but sometimes
1547 * the individual digits are > 10.
1549 * Outer loop is per nibble (hex digit) of input, from MSD end to
1552 decimal_digits = 0; /* Number of decimal digits so far */
1553 p = (byte_order == BFD_ENDIAN_BIG) ? valaddr : valaddr + len - 1;
1555 while ((byte_order == BFD_ENDIAN_BIG) ? (p < valaddr + len) : (p >= valaddr))
1558 * Multiply current base-ten number by 16 in place.
1559 * Each digit was between 0 and 9, now is between
1562 for (j = 0; j < decimal_digits; j++)
1564 digits[j] = SHIFT (digits[j]);
1567 /* Take the next nibble off the input and add it to what
1568 * we've got in the LSB position. Bottom 'digit' is now
1569 * between 0 and 159.
1571 * "flip" is used to run this loop twice for each byte.
1575 /* Take top nibble. */
1577 digits[0] += HIGH_NIBBLE (*p);
1582 /* Take low nibble and bump our pointer "p". */
1584 digits[0] += LOW_NIBBLE (*p);
1585 if (byte_order == BFD_ENDIAN_BIG)
1592 /* Re-decimalize. We have to do this often enough
1593 * that we don't overflow, but once per nibble is
1594 * overkill. Easier this way, though. Note that the
1595 * carry is often larger than 10 (e.g. max initial
1596 * carry out of lowest nibble is 15, could bubble all
1597 * the way up greater than 10). So we have to do
1598 * the carrying beyond the last current digit.
1601 for (j = 0; j < decimal_len - 1; j++)
1605 /* "/" won't handle an unsigned char with
1606 * a value that if signed would be negative.
1607 * So extend to longword int via "dummy".
1610 carry = CARRY_OUT (dummy);
1611 digits[j] = CARRY_LEFT (dummy);
1613 if (j >= decimal_digits && carry == 0)
1616 * All higher digits are 0 and we
1617 * no longer have a carry.
1619 * Note: "j" is 0-based, "decimal_digits" is
1622 decimal_digits = j + 1;
1628 /* Ok, now "digits" is the decimal representation, with
1629 the "decimal_digits" actual digits. Print! */
1631 for (i = decimal_digits - 1; i >= 0; i--)
1633 fprintf_filtered (stream, "%1d", digits[i]);
1638 /* VALADDR points to an integer of LEN bytes. Print it in hex on stream. */
1641 print_hex_chars (struct ui_file *stream, const gdb_byte *valaddr,
1642 unsigned len, enum bfd_endian byte_order)
1646 /* FIXME: We should be not printing leading zeroes in most cases. */
1648 fputs_filtered ("0x", stream);
1649 if (byte_order == BFD_ENDIAN_BIG)
1655 fprintf_filtered (stream, "%02x", *p);
1660 for (p = valaddr + len - 1;
1664 fprintf_filtered (stream, "%02x", *p);
1669 /* VALADDR points to a char integer of LEN bytes.
1670 Print it out in appropriate language form on stream.
1671 Omit any leading zero chars. */
1674 print_char_chars (struct ui_file *stream, struct type *type,
1675 const gdb_byte *valaddr,
1676 unsigned len, enum bfd_endian byte_order)
1680 if (byte_order == BFD_ENDIAN_BIG)
1683 while (p < valaddr + len - 1 && *p == 0)
1686 while (p < valaddr + len)
1688 LA_EMIT_CHAR (*p, type, stream, '\'');
1694 p = valaddr + len - 1;
1695 while (p > valaddr && *p == 0)
1698 while (p >= valaddr)
1700 LA_EMIT_CHAR (*p, type, stream, '\'');
1706 /* Print function pointer with inferior address ADDRESS onto stdio
1710 print_function_pointer_address (const struct value_print_options *options,
1711 struct gdbarch *gdbarch,
1713 struct ui_file *stream)
1716 = gdbarch_convert_from_func_ptr_addr (gdbarch, address,
1719 /* If the function pointer is represented by a description, print
1720 the address of the description. */
1721 if (options->addressprint && func_addr != address)
1723 fputs_filtered ("@", stream);
1724 fputs_filtered (paddress (gdbarch, address), stream);
1725 fputs_filtered (": ", stream);
1727 print_address_demangle (options, gdbarch, func_addr, stream, demangle);
1731 /* Print on STREAM using the given OPTIONS the index for the element
1732 at INDEX of an array whose index type is INDEX_TYPE. */
1735 maybe_print_array_index (struct type *index_type, LONGEST index,
1736 struct ui_file *stream,
1737 const struct value_print_options *options)
1739 struct value *index_value;
1741 if (!options->print_array_indexes)
1744 index_value = value_from_longest (index_type, index);
1746 LA_PRINT_ARRAY_INDEX (index_value, stream, options);
1749 /* Called by various <lang>_val_print routines to print elements of an
1750 array in the form "<elem1>, <elem2>, <elem3>, ...".
1752 (FIXME?) Assumes array element separator is a comma, which is correct
1753 for all languages currently handled.
1754 (FIXME?) Some languages have a notation for repeated array elements,
1755 perhaps we should try to use that notation when appropriate. */
1758 val_print_array_elements (struct type *type,
1759 const gdb_byte *valaddr, int embedded_offset,
1760 CORE_ADDR address, struct ui_file *stream,
1762 const struct value *val,
1763 const struct value_print_options *options,
1766 unsigned int things_printed = 0;
1768 struct type *elttype, *index_type, *base_index_type;
1770 /* Position of the array element we are examining to see
1771 whether it is repeated. */
1773 /* Number of repetitions we have detected so far. */
1775 LONGEST low_bound, high_bound;
1776 LONGEST low_pos, high_pos;
1778 elttype = TYPE_TARGET_TYPE (type);
1779 eltlen = TYPE_LENGTH (check_typedef (elttype));
1780 index_type = TYPE_INDEX_TYPE (type);
1782 if (get_array_bounds (type, &low_bound, &high_bound))
1784 if (TYPE_CODE (index_type) == TYPE_CODE_RANGE)
1785 base_index_type = TYPE_TARGET_TYPE (index_type);
1787 base_index_type = index_type;
1789 /* Non-contiguous enumerations types can by used as index types
1790 in some languages (e.g. Ada). In this case, the array length
1791 shall be computed from the positions of the first and last
1792 literal in the enumeration type, and not from the values
1793 of these literals. */
1794 if (!discrete_position (base_index_type, low_bound, &low_pos)
1795 || !discrete_position (base_index_type, high_bound, &high_pos))
1797 warning (_("unable to get positions in array, use bounds instead"));
1798 low_pos = low_bound;
1799 high_pos = high_bound;
1802 /* The array length should normally be HIGH_POS - LOW_POS + 1.
1803 But we have to be a little extra careful, because some languages
1804 such as Ada allow LOW_POS to be greater than HIGH_POS for
1805 empty arrays. In that situation, the array length is just zero,
1807 if (low_pos > high_pos)
1810 len = high_pos - low_pos + 1;
1814 warning (_("unable to get bounds of array, assuming null array"));
1819 annotate_array_section_begin (i, elttype);
1821 for (; i < len && things_printed < options->print_max; i++)
1825 if (options->prettyformat_arrays)
1827 fprintf_filtered (stream, ",\n");
1828 print_spaces_filtered (2 + 2 * recurse, stream);
1832 fprintf_filtered (stream, ", ");
1835 wrap_here (n_spaces (2 + 2 * recurse));
1836 maybe_print_array_index (index_type, i + low_bound,
1841 /* Only check for reps if repeat_count_threshold is not set to
1842 UINT_MAX (unlimited). */
1843 if (options->repeat_count_threshold < UINT_MAX)
1846 && value_contents_eq (val,
1847 embedded_offset + i * eltlen,
1858 if (reps > options->repeat_count_threshold)
1860 val_print (elttype, valaddr, embedded_offset + i * eltlen,
1861 address, stream, recurse + 1, val, options,
1863 annotate_elt_rep (reps);
1864 fprintf_filtered (stream, " <repeats %u times>", reps);
1865 annotate_elt_rep_end ();
1868 things_printed += options->repeat_count_threshold;
1872 val_print (elttype, valaddr, embedded_offset + i * eltlen,
1874 stream, recurse + 1, val, options, current_language);
1879 annotate_array_section_end ();
1882 fprintf_filtered (stream, "...");
1886 /* Read LEN bytes of target memory at address MEMADDR, placing the
1887 results in GDB's memory at MYADDR. Returns a count of the bytes
1888 actually read, and optionally a target_xfer_status value in the
1889 location pointed to by ERRPTR if ERRPTR is non-null. */
1891 /* FIXME: cagney/1999-10-14: Only used by val_print_string. Can this
1892 function be eliminated. */
1895 partial_memory_read (CORE_ADDR memaddr, gdb_byte *myaddr,
1896 int len, int *errptr)
1898 int nread; /* Number of bytes actually read. */
1899 int errcode; /* Error from last read. */
1901 /* First try a complete read. */
1902 errcode = target_read_memory (memaddr, myaddr, len);
1910 /* Loop, reading one byte at a time until we get as much as we can. */
1911 for (errcode = 0, nread = 0; len > 0 && errcode == 0; nread++, len--)
1913 errcode = target_read_memory (memaddr++, myaddr++, 1);
1915 /* If an error, the last read was unsuccessful, so adjust count. */
1928 /* Read a string from the inferior, at ADDR, with LEN characters of WIDTH bytes
1929 each. Fetch at most FETCHLIMIT characters. BUFFER will be set to a newly
1930 allocated buffer containing the string, which the caller is responsible to
1931 free, and BYTES_READ will be set to the number of bytes read. Returns 0 on
1932 success, or a target_xfer_status on failure.
1934 If LEN > 0, reads the lesser of LEN or FETCHLIMIT characters
1935 (including eventual NULs in the middle or end of the string).
1937 If LEN is -1, stops at the first null character (not necessarily
1938 the first null byte) up to a maximum of FETCHLIMIT characters. Set
1939 FETCHLIMIT to UINT_MAX to read as many characters as possible from
1942 Unless an exception is thrown, BUFFER will always be allocated, even on
1943 failure. In this case, some characters might have been read before the
1944 failure happened. Check BYTES_READ to recognize this situation.
1946 Note: There was a FIXME asking to make this code use target_read_string,
1947 but this function is more general (can read past null characters, up to
1948 given LEN). Besides, it is used much more often than target_read_string
1949 so it is more tested. Perhaps callers of target_read_string should use
1950 this function instead? */
1953 read_string (CORE_ADDR addr, int len, int width, unsigned int fetchlimit,
1954 enum bfd_endian byte_order, gdb_byte **buffer, int *bytes_read)
1956 int errcode; /* Errno returned from bad reads. */
1957 unsigned int nfetch; /* Chars to fetch / chars fetched. */
1958 gdb_byte *bufptr; /* Pointer to next available byte in
1960 struct cleanup *old_chain = NULL; /* Top of the old cleanup chain. */
1962 /* Loop until we either have all the characters, or we encounter
1963 some error, such as bumping into the end of the address space. */
1967 old_chain = make_cleanup (free_current_contents, buffer);
1971 /* We want fetchlimit chars, so we might as well read them all in
1973 unsigned int fetchlen = min (len, fetchlimit);
1975 *buffer = (gdb_byte *) xmalloc (fetchlen * width);
1978 nfetch = partial_memory_read (addr, bufptr, fetchlen * width, &errcode)
1980 addr += nfetch * width;
1981 bufptr += nfetch * width;
1985 unsigned long bufsize = 0;
1986 unsigned int chunksize; /* Size of each fetch, in chars. */
1987 int found_nul; /* Non-zero if we found the nul char. */
1988 gdb_byte *limit; /* First location past end of fetch buffer. */
1991 /* We are looking for a NUL terminator to end the fetching, so we
1992 might as well read in blocks that are large enough to be efficient,
1993 but not so large as to be slow if fetchlimit happens to be large.
1994 So we choose the minimum of 8 and fetchlimit. We used to use 200
1995 instead of 8 but 200 is way too big for remote debugging over a
1997 chunksize = min (8, fetchlimit);
2002 nfetch = min (chunksize, fetchlimit - bufsize);
2004 if (*buffer == NULL)
2005 *buffer = (gdb_byte *) xmalloc (nfetch * width);
2007 *buffer = (gdb_byte *) xrealloc (*buffer,
2008 (nfetch + bufsize) * width);
2010 bufptr = *buffer + bufsize * width;
2013 /* Read as much as we can. */
2014 nfetch = partial_memory_read (addr, bufptr, nfetch * width, &errcode)
2017 /* Scan this chunk for the null character that terminates the string
2018 to print. If found, we don't need to fetch any more. Note
2019 that bufptr is explicitly left pointing at the next character
2020 after the null character, or at the next character after the end
2023 limit = bufptr + nfetch * width;
2024 while (bufptr < limit)
2028 c = extract_unsigned_integer (bufptr, width, byte_order);
2033 /* We don't care about any error which happened after
2034 the NUL terminator. */
2041 while (errcode == 0 /* no error */
2042 && bufptr - *buffer < fetchlimit * width /* no overrun */
2043 && !found_nul); /* haven't found NUL yet */
2046 { /* Length of string is really 0! */
2047 /* We always allocate *buffer. */
2048 *buffer = bufptr = xmalloc (1);
2052 /* bufptr and addr now point immediately beyond the last byte which we
2053 consider part of the string (including a '\0' which ends the string). */
2054 *bytes_read = bufptr - *buffer;
2058 discard_cleanups (old_chain);
2063 /* Return true if print_wchar can display W without resorting to a
2064 numeric escape, false otherwise. */
2067 wchar_printable (gdb_wchar_t w)
2069 return (gdb_iswprint (w)
2070 || w == LCST ('\a') || w == LCST ('\b')
2071 || w == LCST ('\f') || w == LCST ('\n')
2072 || w == LCST ('\r') || w == LCST ('\t')
2073 || w == LCST ('\v'));
2076 /* A helper function that converts the contents of STRING to wide
2077 characters and then appends them to OUTPUT. */
2080 append_string_as_wide (const char *string,
2081 struct obstack *output)
2083 for (; *string; ++string)
2085 gdb_wchar_t w = gdb_btowc (*string);
2086 obstack_grow (output, &w, sizeof (gdb_wchar_t));
2090 /* Print a wide character W to OUTPUT. ORIG is a pointer to the
2091 original (target) bytes representing the character, ORIG_LEN is the
2092 number of valid bytes. WIDTH is the number of bytes in a base
2093 characters of the type. OUTPUT is an obstack to which wide
2094 characters are emitted. QUOTER is a (narrow) character indicating
2095 the style of quotes surrounding the character to be printed.
2096 NEED_ESCAPE is an in/out flag which is used to track numeric
2097 escapes across calls. */
2100 print_wchar (gdb_wint_t w, const gdb_byte *orig,
2101 int orig_len, int width,
2102 enum bfd_endian byte_order,
2103 struct obstack *output,
2104 int quoter, int *need_escapep)
2106 int need_escape = *need_escapep;
2110 /* iswprint implementation on Windows returns 1 for tab character.
2111 In order to avoid different printout on this host, we explicitly
2112 use wchar_printable function. */
2116 obstack_grow_wstr (output, LCST ("\\a"));
2119 obstack_grow_wstr (output, LCST ("\\b"));
2122 obstack_grow_wstr (output, LCST ("\\f"));
2125 obstack_grow_wstr (output, LCST ("\\n"));
2128 obstack_grow_wstr (output, LCST ("\\r"));
2131 obstack_grow_wstr (output, LCST ("\\t"));
2134 obstack_grow_wstr (output, LCST ("\\v"));
2138 if (wchar_printable (w) && (!need_escape || (!gdb_iswdigit (w)
2140 && w != LCST ('9'))))
2142 gdb_wchar_t wchar = w;
2144 if (w == gdb_btowc (quoter) || w == LCST ('\\'))
2145 obstack_grow_wstr (output, LCST ("\\"));
2146 obstack_grow (output, &wchar, sizeof (gdb_wchar_t));
2152 for (i = 0; i + width <= orig_len; i += width)
2157 value = extract_unsigned_integer (&orig[i], width,
2159 /* If the value fits in 3 octal digits, print it that
2160 way. Otherwise, print it as a hex escape. */
2162 xsnprintf (octal, sizeof (octal), "\\%.3o",
2163 (int) (value & 0777));
2165 xsnprintf (octal, sizeof (octal), "\\x%lx", (long) value);
2166 append_string_as_wide (octal, output);
2168 /* If we somehow have extra bytes, print them now. */
2169 while (i < orig_len)
2173 xsnprintf (octal, sizeof (octal), "\\%.3o", orig[i] & 0xff);
2174 append_string_as_wide (octal, output);
2185 /* Print the character C on STREAM as part of the contents of a
2186 literal string whose delimiter is QUOTER. ENCODING names the
2190 generic_emit_char (int c, struct type *type, struct ui_file *stream,
2191 int quoter, const char *encoding)
2193 enum bfd_endian byte_order
2194 = gdbarch_byte_order (get_type_arch (type));
2195 struct obstack wchar_buf, output;
2196 struct cleanup *cleanups;
2198 struct wchar_iterator *iter;
2199 int need_escape = 0;
2201 buf = alloca (TYPE_LENGTH (type));
2202 pack_long (buf, type, c);
2204 iter = make_wchar_iterator (buf, TYPE_LENGTH (type),
2205 encoding, TYPE_LENGTH (type));
2206 cleanups = make_cleanup_wchar_iterator (iter);
2208 /* This holds the printable form of the wchar_t data. */
2209 obstack_init (&wchar_buf);
2210 make_cleanup_obstack_free (&wchar_buf);
2216 const gdb_byte *buf;
2218 int print_escape = 1;
2219 enum wchar_iterate_result result;
2221 num_chars = wchar_iterate (iter, &result, &chars, &buf, &buflen);
2226 /* If all characters are printable, print them. Otherwise,
2227 we're going to have to print an escape sequence. We
2228 check all characters because we want to print the target
2229 bytes in the escape sequence, and we don't know character
2230 boundaries there. */
2234 for (i = 0; i < num_chars; ++i)
2235 if (!wchar_printable (chars[i]))
2243 for (i = 0; i < num_chars; ++i)
2244 print_wchar (chars[i], buf, buflen,
2245 TYPE_LENGTH (type), byte_order,
2246 &wchar_buf, quoter, &need_escape);
2250 /* This handles the NUM_CHARS == 0 case as well. */
2252 print_wchar (gdb_WEOF, buf, buflen, TYPE_LENGTH (type),
2253 byte_order, &wchar_buf, quoter, &need_escape);
2256 /* The output in the host encoding. */
2257 obstack_init (&output);
2258 make_cleanup_obstack_free (&output);
2260 convert_between_encodings (INTERMEDIATE_ENCODING, host_charset (),
2261 (gdb_byte *) obstack_base (&wchar_buf),
2262 obstack_object_size (&wchar_buf),
2263 sizeof (gdb_wchar_t), &output, translit_char);
2264 obstack_1grow (&output, '\0');
2266 fputs_filtered (obstack_base (&output), stream);
2268 do_cleanups (cleanups);
2271 /* Return the repeat count of the next character/byte in ITER,
2272 storing the result in VEC. */
2275 count_next_character (struct wchar_iterator *iter,
2276 VEC (converted_character_d) **vec)
2278 struct converted_character *current;
2280 if (VEC_empty (converted_character_d, *vec))
2282 struct converted_character tmp;
2286 = wchar_iterate (iter, &tmp.result, &chars, &tmp.buf, &tmp.buflen);
2287 if (tmp.num_chars > 0)
2289 gdb_assert (tmp.num_chars < MAX_WCHARS);
2290 memcpy (tmp.chars, chars, tmp.num_chars * sizeof (gdb_wchar_t));
2292 VEC_safe_push (converted_character_d, *vec, &tmp);
2295 current = VEC_last (converted_character_d, *vec);
2297 /* Count repeated characters or bytes. */
2298 current->repeat_count = 1;
2299 if (current->num_chars == -1)
2307 struct converted_character d;
2314 /* Get the next character. */
2316 = wchar_iterate (iter, &d.result, &chars, &d.buf, &d.buflen);
2318 /* If a character was successfully converted, save the character
2319 into the converted character. */
2320 if (d.num_chars > 0)
2322 gdb_assert (d.num_chars < MAX_WCHARS);
2323 memcpy (d.chars, chars, WCHAR_BUFLEN (d.num_chars));
2326 /* Determine if the current character is the same as this
2328 if (d.num_chars == current->num_chars && d.result == current->result)
2330 /* There are two cases to consider:
2332 1) Equality of converted character (num_chars > 0)
2333 2) Equality of non-converted character (num_chars == 0) */
2334 if ((current->num_chars > 0
2335 && memcmp (current->chars, d.chars,
2336 WCHAR_BUFLEN (current->num_chars)) == 0)
2337 || (current->num_chars == 0
2338 && current->buflen == d.buflen
2339 && memcmp (current->buf, d.buf, current->buflen) == 0))
2340 ++current->repeat_count;
2348 /* Push this next converted character onto the result vector. */
2349 repeat = current->repeat_count;
2350 VEC_safe_push (converted_character_d, *vec, &d);
2355 /* Print the characters in CHARS to the OBSTACK. QUOTE_CHAR is the quote
2356 character to use with string output. WIDTH is the size of the output
2357 character type. BYTE_ORDER is the the target byte order. OPTIONS
2358 is the user's print options. */
2361 print_converted_chars_to_obstack (struct obstack *obstack,
2362 VEC (converted_character_d) *chars,
2363 int quote_char, int width,
2364 enum bfd_endian byte_order,
2365 const struct value_print_options *options)
2368 struct converted_character *elem;
2369 enum {START, SINGLE, REPEAT, INCOMPLETE, FINISH} state, last;
2370 gdb_wchar_t wide_quote_char = gdb_btowc (quote_char);
2371 int need_escape = 0;
2373 /* Set the start state. */
2375 last = state = START;
2383 /* Nothing to do. */
2390 /* We are outputting a single character
2391 (< options->repeat_count_threshold). */
2395 /* We were outputting some other type of content, so we
2396 must output and a comma and a quote. */
2398 obstack_grow_wstr (obstack, LCST (", "));
2399 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
2401 /* Output the character. */
2402 for (j = 0; j < elem->repeat_count; ++j)
2404 if (elem->result == wchar_iterate_ok)
2405 print_wchar (elem->chars[0], elem->buf, elem->buflen, width,
2406 byte_order, obstack, quote_char, &need_escape);
2408 print_wchar (gdb_WEOF, elem->buf, elem->buflen, width,
2409 byte_order, obstack, quote_char, &need_escape);
2419 /* We are outputting a character with a repeat count
2420 greater than options->repeat_count_threshold. */
2424 /* We were outputting a single string. Terminate the
2426 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
2429 obstack_grow_wstr (obstack, LCST (", "));
2431 /* Output the character and repeat string. */
2432 obstack_grow_wstr (obstack, LCST ("'"));
2433 if (elem->result == wchar_iterate_ok)
2434 print_wchar (elem->chars[0], elem->buf, elem->buflen, width,
2435 byte_order, obstack, quote_char, &need_escape);
2437 print_wchar (gdb_WEOF, elem->buf, elem->buflen, width,
2438 byte_order, obstack, quote_char, &need_escape);
2439 obstack_grow_wstr (obstack, LCST ("'"));
2440 s = xstrprintf (_(" <repeats %u times>"), elem->repeat_count);
2441 for (j = 0; s[j]; ++j)
2443 gdb_wchar_t w = gdb_btowc (s[j]);
2444 obstack_grow (obstack, &w, sizeof (gdb_wchar_t));
2451 /* We are outputting an incomplete sequence. */
2454 /* If we were outputting a string of SINGLE characters,
2455 terminate the quote. */
2456 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
2459 obstack_grow_wstr (obstack, LCST (", "));
2461 /* Output the incomplete sequence string. */
2462 obstack_grow_wstr (obstack, LCST ("<incomplete sequence "));
2463 print_wchar (gdb_WEOF, elem->buf, elem->buflen, width, byte_order,
2464 obstack, 0, &need_escape);
2465 obstack_grow_wstr (obstack, LCST (">"));
2467 /* We do not attempt to outupt anything after this. */
2472 /* All done. If we were outputting a string of SINGLE
2473 characters, the string must be terminated. Otherwise,
2474 REPEAT and INCOMPLETE are always left properly terminated. */
2476 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
2481 /* Get the next element and state. */
2483 if (state != FINISH)
2485 elem = VEC_index (converted_character_d, chars, idx++);
2486 switch (elem->result)
2488 case wchar_iterate_ok:
2489 case wchar_iterate_invalid:
2490 if (elem->repeat_count > options->repeat_count_threshold)
2496 case wchar_iterate_incomplete:
2500 case wchar_iterate_eof:
2508 /* Print the character string STRING, printing at most LENGTH
2509 characters. LENGTH is -1 if the string is nul terminated. TYPE is
2510 the type of each character. OPTIONS holds the printing options;
2511 printing stops early if the number hits print_max; repeat counts
2512 are printed as appropriate. Print ellipses at the end if we had to
2513 stop before printing LENGTH characters, or if FORCE_ELLIPSES.
2514 QUOTE_CHAR is the character to print at each end of the string. If
2515 C_STYLE_TERMINATOR is true, and the last character is 0, then it is
2519 generic_printstr (struct ui_file *stream, struct type *type,
2520 const gdb_byte *string, unsigned int length,
2521 const char *encoding, int force_ellipses,
2522 int quote_char, int c_style_terminator,
2523 const struct value_print_options *options)
2525 enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
2527 int width = TYPE_LENGTH (type);
2528 struct obstack wchar_buf, output;
2529 struct cleanup *cleanup;
2530 struct wchar_iterator *iter;
2532 struct converted_character *last;
2533 VEC (converted_character_d) *converted_chars;
2537 unsigned long current_char = 1;
2539 for (i = 0; current_char; ++i)
2542 current_char = extract_unsigned_integer (string + i * width,
2548 /* If the string was not truncated due to `set print elements', and
2549 the last byte of it is a null, we don't print that, in
2550 traditional C style. */
2551 if (c_style_terminator
2554 && (extract_unsigned_integer (string + (length - 1) * width,
2555 width, byte_order) == 0))
2560 fputs_filtered ("\"\"", stream);
2564 /* Arrange to iterate over the characters, in wchar_t form. */
2565 iter = make_wchar_iterator (string, length * width, encoding, width);
2566 cleanup = make_cleanup_wchar_iterator (iter);
2567 converted_chars = NULL;
2568 make_cleanup (VEC_cleanup (converted_character_d), &converted_chars);
2570 /* Convert characters until the string is over or the maximum
2571 number of printed characters has been reached. */
2573 while (i < options->print_max)
2579 /* Grab the next character and repeat count. */
2580 r = count_next_character (iter, &converted_chars);
2582 /* If less than zero, the end of the input string was reached. */
2586 /* Otherwise, add the count to the total print count and get
2587 the next character. */
2591 /* Get the last element and determine if the entire string was
2593 last = VEC_last (converted_character_d, converted_chars);
2594 finished = (last->result == wchar_iterate_eof);
2596 /* Ensure that CONVERTED_CHARS is terminated. */
2597 last->result = wchar_iterate_eof;
2599 /* WCHAR_BUF is the obstack we use to represent the string in
2601 obstack_init (&wchar_buf);
2602 make_cleanup_obstack_free (&wchar_buf);
2604 /* Print the output string to the obstack. */
2605 print_converted_chars_to_obstack (&wchar_buf, converted_chars, quote_char,
2606 width, byte_order, options);
2608 if (force_ellipses || !finished)
2609 obstack_grow_wstr (&wchar_buf, LCST ("..."));
2611 /* OUTPUT is where we collect `char's for printing. */
2612 obstack_init (&output);
2613 make_cleanup_obstack_free (&output);
2615 convert_between_encodings (INTERMEDIATE_ENCODING, host_charset (),
2616 (gdb_byte *) obstack_base (&wchar_buf),
2617 obstack_object_size (&wchar_buf),
2618 sizeof (gdb_wchar_t), &output, translit_char);
2619 obstack_1grow (&output, '\0');
2621 fputs_filtered (obstack_base (&output), stream);
2623 do_cleanups (cleanup);
2626 /* Print a string from the inferior, starting at ADDR and printing up to LEN
2627 characters, of WIDTH bytes a piece, to STREAM. If LEN is -1, printing
2628 stops at the first null byte, otherwise printing proceeds (including null
2629 bytes) until either print_max or LEN characters have been printed,
2630 whichever is smaller. ENCODING is the name of the string's
2631 encoding. It can be NULL, in which case the target encoding is
2635 val_print_string (struct type *elttype, const char *encoding,
2636 CORE_ADDR addr, int len,
2637 struct ui_file *stream,
2638 const struct value_print_options *options)
2640 int force_ellipsis = 0; /* Force ellipsis to be printed if nonzero. */
2641 int errcode; /* Errno returned from bad reads. */
2642 int found_nul; /* Non-zero if we found the nul char. */
2643 unsigned int fetchlimit; /* Maximum number of chars to print. */
2645 gdb_byte *buffer = NULL; /* Dynamically growable fetch buffer. */
2646 struct cleanup *old_chain = NULL; /* Top of the old cleanup chain. */
2647 struct gdbarch *gdbarch = get_type_arch (elttype);
2648 enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
2649 int width = TYPE_LENGTH (elttype);
2651 /* First we need to figure out the limit on the number of characters we are
2652 going to attempt to fetch and print. This is actually pretty simple. If
2653 LEN >= zero, then the limit is the minimum of LEN and print_max. If
2654 LEN is -1, then the limit is print_max. This is true regardless of
2655 whether print_max is zero, UINT_MAX (unlimited), or something in between,
2656 because finding the null byte (or available memory) is what actually
2657 limits the fetch. */
2659 fetchlimit = (len == -1 ? options->print_max : min (len,
2660 options->print_max));
2662 errcode = read_string (addr, len, width, fetchlimit, byte_order,
2663 &buffer, &bytes_read);
2664 old_chain = make_cleanup (xfree, buffer);
2668 /* We now have either successfully filled the buffer to fetchlimit,
2669 or terminated early due to an error or finding a null char when
2672 /* Determine found_nul by looking at the last character read. */
2674 if (bytes_read >= width)
2675 found_nul = extract_unsigned_integer (buffer + bytes_read - width, width,
2677 if (len == -1 && !found_nul)
2681 /* We didn't find a NUL terminator we were looking for. Attempt
2682 to peek at the next character. If not successful, or it is not
2683 a null byte, then force ellipsis to be printed. */
2685 peekbuf = (gdb_byte *) alloca (width);
2687 if (target_read_memory (addr, peekbuf, width) == 0
2688 && extract_unsigned_integer (peekbuf, width, byte_order) != 0)
2691 else if ((len >= 0 && errcode != 0) || (len > bytes_read / width))
2693 /* Getting an error when we have a requested length, or fetching less
2694 than the number of characters actually requested, always make us
2699 /* If we get an error before fetching anything, don't print a string.
2700 But if we fetch something and then get an error, print the string
2701 and then the error message. */
2702 if (errcode == 0 || bytes_read > 0)
2704 LA_PRINT_STRING (stream, elttype, buffer, bytes_read / width,
2705 encoding, force_ellipsis, options);
2712 str = memory_error_message (errcode, gdbarch, addr);
2713 make_cleanup (xfree, str);
2715 fprintf_filtered (stream, "<error: ");
2716 fputs_filtered (str, stream);
2717 fprintf_filtered (stream, ">");
2721 do_cleanups (old_chain);
2723 return (bytes_read / width);
2727 /* The 'set input-radix' command writes to this auxiliary variable.
2728 If the requested radix is valid, INPUT_RADIX is updated; otherwise,
2729 it is left unchanged. */
2731 static unsigned input_radix_1 = 10;
2733 /* Validate an input or output radix setting, and make sure the user
2734 knows what they really did here. Radix setting is confusing, e.g.
2735 setting the input radix to "10" never changes it! */
2738 set_input_radix (char *args, int from_tty, struct cmd_list_element *c)
2740 set_input_radix_1 (from_tty, input_radix_1);
2744 set_input_radix_1 (int from_tty, unsigned radix)
2746 /* We don't currently disallow any input radix except 0 or 1, which don't
2747 make any mathematical sense. In theory, we can deal with any input
2748 radix greater than 1, even if we don't have unique digits for every
2749 value from 0 to radix-1, but in practice we lose on large radix values.
2750 We should either fix the lossage or restrict the radix range more.
2755 input_radix_1 = input_radix;
2756 error (_("Nonsense input radix ``decimal %u''; input radix unchanged."),
2759 input_radix_1 = input_radix = radix;
2762 printf_filtered (_("Input radix now set to "
2763 "decimal %u, hex %x, octal %o.\n"),
2764 radix, radix, radix);
2768 /* The 'set output-radix' command writes to this auxiliary variable.
2769 If the requested radix is valid, OUTPUT_RADIX is updated,
2770 otherwise, it is left unchanged. */
2772 static unsigned output_radix_1 = 10;
2775 set_output_radix (char *args, int from_tty, struct cmd_list_element *c)
2777 set_output_radix_1 (from_tty, output_radix_1);
2781 set_output_radix_1 (int from_tty, unsigned radix)
2783 /* Validate the radix and disallow ones that we aren't prepared to
2784 handle correctly, leaving the radix unchanged. */
2788 user_print_options.output_format = 'x'; /* hex */
2791 user_print_options.output_format = 0; /* decimal */
2794 user_print_options.output_format = 'o'; /* octal */
2797 output_radix_1 = output_radix;
2798 error (_("Unsupported output radix ``decimal %u''; "
2799 "output radix unchanged."),
2802 output_radix_1 = output_radix = radix;
2805 printf_filtered (_("Output radix now set to "
2806 "decimal %u, hex %x, octal %o.\n"),
2807 radix, radix, radix);
2811 /* Set both the input and output radix at once. Try to set the output radix
2812 first, since it has the most restrictive range. An radix that is valid as
2813 an output radix is also valid as an input radix.
2815 It may be useful to have an unusual input radix. If the user wishes to
2816 set an input radix that is not valid as an output radix, he needs to use
2817 the 'set input-radix' command. */
2820 set_radix (char *arg, int from_tty)
2824 radix = (arg == NULL) ? 10 : parse_and_eval_long (arg);
2825 set_output_radix_1 (0, radix);
2826 set_input_radix_1 (0, radix);
2829 printf_filtered (_("Input and output radices now set to "
2830 "decimal %u, hex %x, octal %o.\n"),
2831 radix, radix, radix);
2835 /* Show both the input and output radices. */
2838 show_radix (char *arg, int from_tty)
2842 if (input_radix == output_radix)
2844 printf_filtered (_("Input and output radices set to "
2845 "decimal %u, hex %x, octal %o.\n"),
2846 input_radix, input_radix, input_radix);
2850 printf_filtered (_("Input radix set to decimal "
2851 "%u, hex %x, octal %o.\n"),
2852 input_radix, input_radix, input_radix);
2853 printf_filtered (_("Output radix set to decimal "
2854 "%u, hex %x, octal %o.\n"),
2855 output_radix, output_radix, output_radix);
2862 set_print (char *arg, int from_tty)
2865 "\"set print\" must be followed by the name of a print subcommand.\n");
2866 help_list (setprintlist, "set print ", all_commands, gdb_stdout);
2870 show_print (char *args, int from_tty)
2872 cmd_show_list (showprintlist, from_tty, "");
2876 set_print_raw (char *arg, int from_tty)
2879 "\"set print raw\" must be followed by the name of a \"print raw\" subcommand.\n");
2880 help_list (setprintrawlist, "set print raw ", all_commands, gdb_stdout);
2884 show_print_raw (char *args, int from_tty)
2886 cmd_show_list (showprintrawlist, from_tty, "");
2891 _initialize_valprint (void)
2893 add_prefix_cmd ("print", no_class, set_print,
2894 _("Generic command for setting how things print."),
2895 &setprintlist, "set print ", 0, &setlist);
2896 add_alias_cmd ("p", "print", no_class, 1, &setlist);
2897 /* Prefer set print to set prompt. */
2898 add_alias_cmd ("pr", "print", no_class, 1, &setlist);
2900 add_prefix_cmd ("print", no_class, show_print,
2901 _("Generic command for showing print settings."),
2902 &showprintlist, "show print ", 0, &showlist);
2903 add_alias_cmd ("p", "print", no_class, 1, &showlist);
2904 add_alias_cmd ("pr", "print", no_class, 1, &showlist);
2906 add_prefix_cmd ("raw", no_class, set_print_raw,
2908 Generic command for setting what things to print in \"raw\" mode."),
2909 &setprintrawlist, "set print raw ", 0, &setprintlist);
2910 add_prefix_cmd ("raw", no_class, show_print_raw,
2911 _("Generic command for showing \"print raw\" settings."),
2912 &showprintrawlist, "show print raw ", 0, &showprintlist);
2914 add_setshow_uinteger_cmd ("elements", no_class,
2915 &user_print_options.print_max, _("\
2916 Set limit on string chars or array elements to print."), _("\
2917 Show limit on string chars or array elements to print."), _("\
2918 \"set print elements unlimited\" causes there to be no limit."),
2921 &setprintlist, &showprintlist);
2923 add_setshow_boolean_cmd ("null-stop", no_class,
2924 &user_print_options.stop_print_at_null, _("\
2925 Set printing of char arrays to stop at first null char."), _("\
2926 Show printing of char arrays to stop at first null char."), NULL,
2928 show_stop_print_at_null,
2929 &setprintlist, &showprintlist);
2931 add_setshow_uinteger_cmd ("repeats", no_class,
2932 &user_print_options.repeat_count_threshold, _("\
2933 Set threshold for repeated print elements."), _("\
2934 Show threshold for repeated print elements."), _("\
2935 \"set print repeats unlimited\" causes all elements to be individually printed."),
2937 show_repeat_count_threshold,
2938 &setprintlist, &showprintlist);
2940 add_setshow_boolean_cmd ("pretty", class_support,
2941 &user_print_options.prettyformat_structs, _("\
2942 Set pretty formatting of structures."), _("\
2943 Show pretty formatting of structures."), NULL,
2945 show_prettyformat_structs,
2946 &setprintlist, &showprintlist);
2948 add_setshow_boolean_cmd ("union", class_support,
2949 &user_print_options.unionprint, _("\
2950 Set printing of unions interior to structures."), _("\
2951 Show printing of unions interior to structures."), NULL,
2954 &setprintlist, &showprintlist);
2956 add_setshow_boolean_cmd ("array", class_support,
2957 &user_print_options.prettyformat_arrays, _("\
2958 Set pretty formatting of arrays."), _("\
2959 Show pretty formatting of arrays."), NULL,
2961 show_prettyformat_arrays,
2962 &setprintlist, &showprintlist);
2964 add_setshow_boolean_cmd ("address", class_support,
2965 &user_print_options.addressprint, _("\
2966 Set printing of addresses."), _("\
2967 Show printing of addresses."), NULL,
2970 &setprintlist, &showprintlist);
2972 add_setshow_boolean_cmd ("symbol", class_support,
2973 &user_print_options.symbol_print, _("\
2974 Set printing of symbol names when printing pointers."), _("\
2975 Show printing of symbol names when printing pointers."),
2978 &setprintlist, &showprintlist);
2980 add_setshow_zuinteger_cmd ("input-radix", class_support, &input_radix_1,
2982 Set default input radix for entering numbers."), _("\
2983 Show default input radix for entering numbers."), NULL,
2986 &setlist, &showlist);
2988 add_setshow_zuinteger_cmd ("output-radix", class_support, &output_radix_1,
2990 Set default output radix for printing of values."), _("\
2991 Show default output radix for printing of values."), NULL,
2994 &setlist, &showlist);
2996 /* The "set radix" and "show radix" commands are special in that
2997 they are like normal set and show commands but allow two normally
2998 independent variables to be either set or shown with a single
2999 command. So the usual deprecated_add_set_cmd() and [deleted]
3000 add_show_from_set() commands aren't really appropriate. */
3001 /* FIXME: i18n: With the new add_setshow_integer command, that is no
3002 longer true - show can display anything. */
3003 add_cmd ("radix", class_support, set_radix, _("\
3004 Set default input and output number radices.\n\
3005 Use 'set input-radix' or 'set output-radix' to independently set each.\n\
3006 Without an argument, sets both radices back to the default value of 10."),
3008 add_cmd ("radix", class_support, show_radix, _("\
3009 Show the default input and output number radices.\n\
3010 Use 'show input-radix' or 'show output-radix' to independently show each."),
3013 add_setshow_boolean_cmd ("array-indexes", class_support,
3014 &user_print_options.print_array_indexes, _("\
3015 Set printing of array indexes."), _("\
3016 Show printing of array indexes"), NULL, NULL, show_print_array_indexes,
3017 &setprintlist, &showprintlist);