1 /* Print values for GDB, the GNU debugger.
3 Copyright (C) 1986-2014 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 CHECK_TYPEDEF (type);
278 while (TYPE_CODE (type) == TYPE_CODE_REF)
280 type = TYPE_TARGET_TYPE (type);
281 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 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 /* A generic val_print that is suitable for use by language
363 implementations of the la_val_print method. This function can
364 handle most type codes, though not all, notably exception
365 TYPE_CODE_UNION and TYPE_CODE_STRUCT, which must be implemented by
368 Most arguments are as to val_print.
370 The additional DECORATIONS argument can be used to customize the
371 output in some small, language-specific ways. */
374 generic_val_print (struct type *type, const gdb_byte *valaddr,
375 int embedded_offset, CORE_ADDR address,
376 struct ui_file *stream, int recurse,
377 const struct value *original_value,
378 const struct value_print_options *options,
379 const struct generic_val_print_decorations *decorations)
381 struct gdbarch *gdbarch = get_type_arch (type);
382 unsigned int i = 0; /* Number of characters printed. */
384 struct type *elttype, *unresolved_elttype;
385 struct type *unresolved_type = type;
389 CHECK_TYPEDEF (type);
390 switch (TYPE_CODE (type))
392 case TYPE_CODE_ARRAY:
393 unresolved_elttype = TYPE_TARGET_TYPE (type);
394 elttype = check_typedef (unresolved_elttype);
395 if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (unresolved_elttype) > 0)
397 LONGEST low_bound, high_bound;
399 if (!get_array_bounds (type, &low_bound, &high_bound))
400 error (_("Could not determine the array high bound"));
402 if (options->prettyformat_arrays)
404 print_spaces_filtered (2 + 2 * recurse, stream);
407 fprintf_filtered (stream, "{");
408 val_print_array_elements (type, valaddr, embedded_offset,
410 recurse, original_value, options, 0);
411 fprintf_filtered (stream, "}");
414 /* Array of unspecified length: treat like pointer to first
416 addr = address + embedded_offset;
417 goto print_unpacked_pointer;
419 case TYPE_CODE_MEMBERPTR:
420 val_print_scalar_formatted (type, valaddr, embedded_offset,
421 original_value, options, 0, stream);
425 if (options->format && options->format != 's')
427 val_print_scalar_formatted (type, valaddr, embedded_offset,
428 original_value, options, 0, stream);
431 unresolved_elttype = TYPE_TARGET_TYPE (type);
432 elttype = check_typedef (unresolved_elttype);
434 addr = unpack_pointer (type, valaddr + embedded_offset);
435 print_unpacked_pointer:
437 if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
439 /* Try to print what function it points to. */
440 print_function_pointer_address (options, gdbarch, addr, stream);
444 if (options->symbol_print)
445 print_address_demangle (options, gdbarch, addr, stream, demangle);
446 else if (options->addressprint)
447 fputs_filtered (paddress (gdbarch, addr), stream);
452 elttype = check_typedef (TYPE_TARGET_TYPE (type));
453 if (options->addressprint)
456 = extract_typed_address (valaddr + embedded_offset, type);
458 fprintf_filtered (stream, "@");
459 fputs_filtered (paddress (gdbarch, addr), stream);
460 if (options->deref_ref)
461 fputs_filtered (": ", stream);
463 /* De-reference the reference. */
464 if (options->deref_ref)
466 if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
468 struct value *deref_val;
470 deref_val = coerce_ref_if_computed (original_value);
471 if (deref_val != NULL)
473 /* More complicated computed references are not supported. */
474 gdb_assert (embedded_offset == 0);
477 deref_val = value_at (TYPE_TARGET_TYPE (type),
478 unpack_pointer (type,
480 + embedded_offset)));
482 common_val_print (deref_val, stream, recurse, options,
486 fputs_filtered ("???", stream);
493 val_print_scalar_formatted (type, valaddr, embedded_offset,
494 original_value, options, 0, stream);
497 len = TYPE_NFIELDS (type);
498 val = unpack_long (type, valaddr + embedded_offset);
499 for (i = 0; i < len; i++)
502 if (val == TYPE_FIELD_ENUMVAL (type, i))
509 fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
511 else if (TYPE_FLAG_ENUM (type))
515 /* We have a "flag" enum, so we try to decompose it into
516 pieces as appropriate. A flag enum has disjoint
517 constants by definition. */
518 fputs_filtered ("(", stream);
519 for (i = 0; i < len; ++i)
523 if ((val & TYPE_FIELD_ENUMVAL (type, i)) != 0)
526 fputs_filtered (" | ", stream);
529 val &= ~TYPE_FIELD_ENUMVAL (type, i);
530 fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
534 if (first || val != 0)
537 fputs_filtered (" | ", stream);
538 fputs_filtered ("unknown: ", stream);
539 print_longest (stream, 'd', 0, val);
542 fputs_filtered (")", stream);
545 print_longest (stream, 'd', 0, val);
548 case TYPE_CODE_FLAGS:
550 val_print_scalar_formatted (type, valaddr, embedded_offset,
551 original_value, options, 0, stream);
553 val_print_type_code_flags (type, valaddr + embedded_offset,
558 case TYPE_CODE_METHOD:
561 val_print_scalar_formatted (type, valaddr, embedded_offset,
562 original_value, options, 0, stream);
565 /* FIXME, we should consider, at least for ANSI C language,
566 eliminating the distinction made between FUNCs and POINTERs
568 fprintf_filtered (stream, "{");
569 type_print (type, "", stream, -1);
570 fprintf_filtered (stream, "} ");
571 /* Try to print what function it points to, and its address. */
572 print_address_demangle (options, gdbarch, address, stream, demangle);
576 if (options->format || options->output_format)
578 struct value_print_options opts = *options;
579 opts.format = (options->format ? options->format
580 : options->output_format);
581 val_print_scalar_formatted (type, valaddr, embedded_offset,
582 original_value, &opts, 0, stream);
586 val = unpack_long (type, valaddr + embedded_offset);
588 fputs_filtered (decorations->false_name, stream);
590 fputs_filtered (decorations->true_name, stream);
592 print_longest (stream, 'd', 0, val);
596 case TYPE_CODE_RANGE:
597 /* FIXME: create_static_range_type does not set the unsigned bit in a
598 range type (I think it probably should copy it from the
599 target type), so we won't print values which are too large to
600 fit in a signed integer correctly. */
601 /* FIXME: Doesn't handle ranges of enums correctly. (Can't just
602 print with the target type, though, because the size of our
603 type and the target type might differ). */
608 if (options->format || options->output_format)
610 struct value_print_options opts = *options;
612 opts.format = (options->format ? options->format
613 : options->output_format);
614 val_print_scalar_formatted (type, valaddr, embedded_offset,
615 original_value, &opts, 0, stream);
618 val_print_type_code_int (type, valaddr + embedded_offset, stream);
622 if (options->format || options->output_format)
624 struct value_print_options opts = *options;
626 opts.format = (options->format ? options->format
627 : options->output_format);
628 val_print_scalar_formatted (type, valaddr, embedded_offset,
629 original_value, &opts, 0, stream);
633 val = unpack_long (type, valaddr + embedded_offset);
634 if (TYPE_UNSIGNED (type))
635 fprintf_filtered (stream, "%u", (unsigned int) val);
637 fprintf_filtered (stream, "%d", (int) val);
638 fputs_filtered (" ", stream);
639 LA_PRINT_CHAR (val, unresolved_type, stream);
646 val_print_scalar_formatted (type, valaddr, embedded_offset,
647 original_value, options, 0, stream);
651 print_floating (valaddr + embedded_offset, type, stream);
655 case TYPE_CODE_DECFLOAT:
657 val_print_scalar_formatted (type, valaddr, embedded_offset,
658 original_value, options, 0, stream);
660 print_decimal_floating (valaddr + embedded_offset,
665 fputs_filtered (decorations->void_name, stream);
668 case TYPE_CODE_ERROR:
669 fprintf_filtered (stream, "%s", TYPE_ERROR_NAME (type));
672 case TYPE_CODE_UNDEF:
673 /* This happens (without TYPE_FLAG_STUB set) on systems which
674 don't use dbx xrefs (NO_DBX_XREFS in gcc) if a file has a
675 "struct foo *bar" and no complete type for struct foo in that
677 fprintf_filtered (stream, _("<incomplete type>"));
680 case TYPE_CODE_COMPLEX:
681 fprintf_filtered (stream, "%s", decorations->complex_prefix);
683 val_print_scalar_formatted (TYPE_TARGET_TYPE (type),
684 valaddr, embedded_offset,
685 original_value, options, 0, stream);
687 print_floating (valaddr + embedded_offset,
688 TYPE_TARGET_TYPE (type),
690 fprintf_filtered (stream, "%s", decorations->complex_infix);
692 val_print_scalar_formatted (TYPE_TARGET_TYPE (type),
695 + TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
699 print_floating (valaddr + embedded_offset
700 + TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
701 TYPE_TARGET_TYPE (type),
703 fprintf_filtered (stream, "%s", decorations->complex_suffix);
706 case TYPE_CODE_UNION:
707 case TYPE_CODE_STRUCT:
708 case TYPE_CODE_METHODPTR:
710 error (_("Unhandled type code %d in symbol table."),
716 /* Print using the given LANGUAGE the data of type TYPE located at
717 VALADDR + EMBEDDED_OFFSET (within GDB), which came from the
718 inferior at address ADDRESS + EMBEDDED_OFFSET, onto stdio stream
719 STREAM according to OPTIONS. VAL is the whole object that came
720 from ADDRESS. VALADDR must point to the head of VAL's contents
723 The language printers will pass down an adjusted EMBEDDED_OFFSET to
724 further helper subroutines as subfields of TYPE are printed. In
725 such cases, VALADDR is passed down unadjusted, as well as VAL, so
726 that VAL can be queried for metadata about the contents data being
727 printed, using EMBEDDED_OFFSET as an offset into VAL's contents
728 buffer. For example: "has this field been optimized out", or "I'm
729 printing an object while inspecting a traceframe; has this
730 particular piece of data been collected?".
732 RECURSE indicates the amount of indentation to supply before
733 continuation lines; this amount is roughly twice the value of
737 val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset,
738 CORE_ADDR address, struct ui_file *stream, int recurse,
739 const struct value *val,
740 const struct value_print_options *options,
741 const struct language_defn *language)
743 volatile struct gdb_exception except;
745 struct value_print_options local_opts = *options;
746 struct type *real_type = check_typedef (type);
748 if (local_opts.prettyformat == Val_prettyformat_default)
749 local_opts.prettyformat = (local_opts.prettyformat_structs
750 ? Val_prettyformat : Val_no_prettyformat);
754 /* Ensure that the type is complete and not just a stub. If the type is
755 only a stub and we can't find and substitute its complete type, then
756 print appropriate string and return. */
758 if (TYPE_STUB (real_type))
760 fprintf_filtered (stream, _("<incomplete type>"));
765 if (!valprint_check_validity (stream, real_type, embedded_offset, val))
770 ret = apply_ext_lang_val_pretty_printer (type, valaddr, embedded_offset,
771 address, stream, recurse,
772 val, options, language);
777 /* Handle summary mode. If the value is a scalar, print it;
778 otherwise, print an ellipsis. */
779 if (options->summary && !val_print_scalar_type_p (type))
781 fprintf_filtered (stream, "...");
785 TRY_CATCH (except, RETURN_MASK_ERROR)
787 language->la_val_print (type, valaddr, embedded_offset, address,
788 stream, recurse, val,
791 if (except.reason < 0)
792 fprintf_filtered (stream, _("<error reading variable>"));
795 /* Check whether the value VAL is printable. Return 1 if it is;
796 return 0 and print an appropriate error message to STREAM according to
797 OPTIONS if it is not. */
800 value_check_printable (struct value *val, struct ui_file *stream,
801 const struct value_print_options *options)
805 fprintf_filtered (stream, _("<address of value unknown>"));
809 if (value_entirely_optimized_out (val))
811 if (options->summary && !val_print_scalar_type_p (value_type (val)))
812 fprintf_filtered (stream, "...");
814 val_print_optimized_out (val, stream);
818 if (value_entirely_unavailable (val))
820 if (options->summary && !val_print_scalar_type_p (value_type (val)))
821 fprintf_filtered (stream, "...");
823 val_print_unavailable (stream);
827 if (TYPE_CODE (value_type (val)) == TYPE_CODE_INTERNAL_FUNCTION)
829 fprintf_filtered (stream, _("<internal function %s>"),
830 value_internal_function_name (val));
837 /* Print using the given LANGUAGE the value VAL onto stream STREAM according
840 This is a preferable interface to val_print, above, because it uses
841 GDB's value mechanism. */
844 common_val_print (struct value *val, struct ui_file *stream, int recurse,
845 const struct value_print_options *options,
846 const struct language_defn *language)
848 if (!value_check_printable (val, stream, options))
851 if (language->la_language == language_ada)
852 /* The value might have a dynamic type, which would cause trouble
853 below when trying to extract the value contents (since the value
854 size is determined from the type size which is unknown). So
855 get a fixed representation of our value. */
856 val = ada_to_fixed_value (val);
858 val_print (value_type (val), value_contents_for_printing (val),
859 value_embedded_offset (val), value_address (val),
861 val, options, language);
864 /* Print on stream STREAM the value VAL according to OPTIONS. The value
865 is printed using the current_language syntax. */
868 value_print (struct value *val, struct ui_file *stream,
869 const struct value_print_options *options)
871 if (!value_check_printable (val, stream, options))
877 = apply_ext_lang_val_pretty_printer (value_type (val),
878 value_contents_for_printing (val),
879 value_embedded_offset (val),
882 val, options, current_language);
888 LA_VALUE_PRINT (val, stream, options);
891 /* Called by various <lang>_val_print routines to print
892 TYPE_CODE_INT's. TYPE is the type. VALADDR is the address of the
893 value. STREAM is where to print the value. */
896 val_print_type_code_int (struct type *type, const gdb_byte *valaddr,
897 struct ui_file *stream)
899 enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
901 if (TYPE_LENGTH (type) > sizeof (LONGEST))
905 if (TYPE_UNSIGNED (type)
906 && extract_long_unsigned_integer (valaddr, TYPE_LENGTH (type),
909 print_longest (stream, 'u', 0, val);
913 /* Signed, or we couldn't turn an unsigned value into a
914 LONGEST. For signed values, one could assume two's
915 complement (a reasonable assumption, I think) and do
917 print_hex_chars (stream, (unsigned char *) valaddr,
918 TYPE_LENGTH (type), byte_order);
923 print_longest (stream, TYPE_UNSIGNED (type) ? 'u' : 'd', 0,
924 unpack_long (type, valaddr));
929 val_print_type_code_flags (struct type *type, const gdb_byte *valaddr,
930 struct ui_file *stream)
932 ULONGEST val = unpack_long (type, valaddr);
933 int bitpos, nfields = TYPE_NFIELDS (type);
935 fputs_filtered ("[ ", stream);
936 for (bitpos = 0; bitpos < nfields; bitpos++)
938 if (TYPE_FIELD_BITPOS (type, bitpos) != -1
939 && (val & ((ULONGEST)1 << bitpos)))
941 if (TYPE_FIELD_NAME (type, bitpos))
942 fprintf_filtered (stream, "%s ", TYPE_FIELD_NAME (type, bitpos));
944 fprintf_filtered (stream, "#%d ", bitpos);
947 fputs_filtered ("]", stream);
950 /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR,
951 according to OPTIONS and SIZE on STREAM. Format i is not supported
954 This is how the elements of an array or structure are printed
958 val_print_scalar_formatted (struct type *type,
959 const gdb_byte *valaddr, int embedded_offset,
960 const struct value *val,
961 const struct value_print_options *options,
963 struct ui_file *stream)
965 gdb_assert (val != NULL);
966 gdb_assert (valaddr == value_contents_for_printing_const (val));
968 /* If we get here with a string format, try again without it. Go
969 all the way back to the language printers, which may call us
971 if (options->format == 's')
973 struct value_print_options opts = *options;
976 val_print (type, valaddr, embedded_offset, 0, stream, 0, val, &opts,
981 /* A scalar object that does not have all bits available can't be
982 printed, because all bits contribute to its representation. */
983 if (value_bits_any_optimized_out (val,
984 TARGET_CHAR_BIT * embedded_offset,
985 TARGET_CHAR_BIT * TYPE_LENGTH (type)))
986 val_print_optimized_out (val, stream);
987 else if (!value_bytes_available (val, embedded_offset, TYPE_LENGTH (type)))
988 val_print_unavailable (stream);
990 print_scalar_formatted (valaddr + embedded_offset, type,
991 options, size, stream);
994 /* Print a number according to FORMAT which is one of d,u,x,o,b,h,w,g.
995 The raison d'etre of this function is to consolidate printing of
996 LONG_LONG's into this one function. The format chars b,h,w,g are
997 from print_scalar_formatted(). Numbers are printed using C
1000 USE_C_FORMAT means to use C format in all cases. Without it,
1001 'o' and 'x' format do not include the standard C radix prefix
1004 Hilfinger/2004-09-09: USE_C_FORMAT was originally called USE_LOCAL
1005 and was intended to request formating according to the current
1006 language and would be used for most integers that GDB prints. The
1007 exceptional cases were things like protocols where the format of
1008 the integer is a protocol thing, not a user-visible thing). The
1009 parameter remains to preserve the information of what things might
1010 be printed with language-specific format, should we ever resurrect
1014 print_longest (struct ui_file *stream, int format, int use_c_format,
1022 val = int_string (val_long, 10, 1, 0, 1); break;
1024 val = int_string (val_long, 10, 0, 0, 1); break;
1026 val = int_string (val_long, 16, 0, 0, use_c_format); break;
1028 val = int_string (val_long, 16, 0, 2, 1); break;
1030 val = int_string (val_long, 16, 0, 4, 1); break;
1032 val = int_string (val_long, 16, 0, 8, 1); break;
1034 val = int_string (val_long, 16, 0, 16, 1); break;
1037 val = int_string (val_long, 8, 0, 0, use_c_format); break;
1039 internal_error (__FILE__, __LINE__,
1040 _("failed internal consistency check"));
1042 fputs_filtered (val, stream);
1045 /* This used to be a macro, but I don't think it is called often enough
1046 to merit such treatment. */
1047 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
1048 arguments to a function, number in a value history, register number, etc.)
1049 where the value must not be larger than can fit in an int. */
1052 longest_to_int (LONGEST arg)
1054 /* Let the compiler do the work. */
1055 int rtnval = (int) arg;
1057 /* Check for overflows or underflows. */
1058 if (sizeof (LONGEST) > sizeof (int))
1062 error (_("Value out of range."));
1068 /* Print a floating point value of type TYPE (not always a
1069 TYPE_CODE_FLT), pointed to in GDB by VALADDR, on STREAM. */
1072 print_floating (const gdb_byte *valaddr, struct type *type,
1073 struct ui_file *stream)
1077 const struct floatformat *fmt = NULL;
1078 unsigned len = TYPE_LENGTH (type);
1079 enum float_kind kind;
1081 /* If it is a floating-point, check for obvious problems. */
1082 if (TYPE_CODE (type) == TYPE_CODE_FLT)
1083 fmt = floatformat_from_type (type);
1086 kind = floatformat_classify (fmt, valaddr);
1087 if (kind == float_nan)
1089 if (floatformat_is_negative (fmt, valaddr))
1090 fprintf_filtered (stream, "-");
1091 fprintf_filtered (stream, "nan(");
1092 fputs_filtered ("0x", stream);
1093 fputs_filtered (floatformat_mantissa (fmt, valaddr), stream);
1094 fprintf_filtered (stream, ")");
1097 else if (kind == float_infinite)
1099 if (floatformat_is_negative (fmt, valaddr))
1100 fputs_filtered ("-", stream);
1101 fputs_filtered ("inf", stream);
1106 /* NOTE: cagney/2002-01-15: The TYPE passed into print_floating()
1107 isn't necessarily a TYPE_CODE_FLT. Consequently, unpack_double
1108 needs to be used as that takes care of any necessary type
1109 conversions. Such conversions are of course direct to DOUBLEST
1110 and disregard any possible target floating point limitations.
1111 For instance, a u64 would be converted and displayed exactly on a
1112 host with 80 bit DOUBLEST but with loss of information on a host
1113 with 64 bit DOUBLEST. */
1115 doub = unpack_double (type, valaddr, &inv);
1118 fprintf_filtered (stream, "<invalid float value>");
1122 /* FIXME: kettenis/2001-01-20: The following code makes too much
1123 assumptions about the host and target floating point format. */
1125 /* NOTE: cagney/2002-02-03: Since the TYPE of what was passed in may
1126 not necessarily be a TYPE_CODE_FLT, the below ignores that and
1127 instead uses the type's length to determine the precision of the
1128 floating-point value being printed. */
1130 if (len < sizeof (double))
1131 fprintf_filtered (stream, "%.9g", (double) doub);
1132 else if (len == sizeof (double))
1133 fprintf_filtered (stream, "%.17g", (double) doub);
1135 #ifdef PRINTF_HAS_LONG_DOUBLE
1136 fprintf_filtered (stream, "%.35Lg", doub);
1138 /* This at least wins with values that are representable as
1140 fprintf_filtered (stream, "%.17g", (double) doub);
1145 print_decimal_floating (const gdb_byte *valaddr, struct type *type,
1146 struct ui_file *stream)
1148 enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
1149 char decstr[MAX_DECIMAL_STRING];
1150 unsigned len = TYPE_LENGTH (type);
1152 decimal_to_string (valaddr, len, byte_order, decstr);
1153 fputs_filtered (decstr, stream);
1158 print_binary_chars (struct ui_file *stream, const gdb_byte *valaddr,
1159 unsigned len, enum bfd_endian byte_order)
1162 #define BITS_IN_BYTES 8
1168 /* Declared "int" so it will be signed.
1169 This ensures that right shift will shift in zeros. */
1171 const int mask = 0x080;
1173 /* FIXME: We should be not printing leading zeroes in most cases. */
1175 if (byte_order == BFD_ENDIAN_BIG)
1181 /* Every byte has 8 binary characters; peel off
1182 and print from the MSB end. */
1184 for (i = 0; i < (BITS_IN_BYTES * sizeof (*p)); i++)
1186 if (*p & (mask >> i))
1191 fprintf_filtered (stream, "%1d", b);
1197 for (p = valaddr + len - 1;
1201 for (i = 0; i < (BITS_IN_BYTES * sizeof (*p)); i++)
1203 if (*p & (mask >> i))
1208 fprintf_filtered (stream, "%1d", b);
1214 /* VALADDR points to an integer of LEN bytes.
1215 Print it in octal on stream or format it in buf. */
1218 print_octal_chars (struct ui_file *stream, const gdb_byte *valaddr,
1219 unsigned len, enum bfd_endian byte_order)
1222 unsigned char octa1, octa2, octa3, carry;
1225 /* FIXME: We should be not printing leading zeroes in most cases. */
1228 /* Octal is 3 bits, which doesn't fit. Yuk. So we have to track
1229 * the extra bits, which cycle every three bytes:
1231 * Byte side: 0 1 2 3
1233 * bit number 123 456 78 | 9 012 345 6 | 78 901 234 | 567 890 12 |
1235 * Octal side: 0 1 carry 3 4 carry ...
1237 * Cycle number: 0 1 2
1239 * But of course we are printing from the high side, so we have to
1240 * figure out where in the cycle we are so that we end up with no
1241 * left over bits at the end.
1243 #define BITS_IN_OCTAL 3
1244 #define HIGH_ZERO 0340
1245 #define LOW_ZERO 0016
1246 #define CARRY_ZERO 0003
1247 #define HIGH_ONE 0200
1248 #define MID_ONE 0160
1249 #define LOW_ONE 0016
1250 #define CARRY_ONE 0001
1251 #define HIGH_TWO 0300
1252 #define MID_TWO 0070
1253 #define LOW_TWO 0007
1255 /* For 32 we start in cycle 2, with two bits and one bit carry;
1256 for 64 in cycle in cycle 1, with one bit and a two bit carry. */
1258 cycle = (len * BITS_IN_BYTES) % BITS_IN_OCTAL;
1261 fputs_filtered ("0", stream);
1262 if (byte_order == BFD_ENDIAN_BIG)
1271 /* No carry in, carry out two bits. */
1273 octa1 = (HIGH_ZERO & *p) >> 5;
1274 octa2 = (LOW_ZERO & *p) >> 2;
1275 carry = (CARRY_ZERO & *p);
1276 fprintf_filtered (stream, "%o", octa1);
1277 fprintf_filtered (stream, "%o", octa2);
1281 /* Carry in two bits, carry out one bit. */
1283 octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7);
1284 octa2 = (MID_ONE & *p) >> 4;
1285 octa3 = (LOW_ONE & *p) >> 1;
1286 carry = (CARRY_ONE & *p);
1287 fprintf_filtered (stream, "%o", octa1);
1288 fprintf_filtered (stream, "%o", octa2);
1289 fprintf_filtered (stream, "%o", octa3);
1293 /* Carry in one bit, no carry out. */
1295 octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6);
1296 octa2 = (MID_TWO & *p) >> 3;
1297 octa3 = (LOW_TWO & *p);
1299 fprintf_filtered (stream, "%o", octa1);
1300 fprintf_filtered (stream, "%o", octa2);
1301 fprintf_filtered (stream, "%o", octa3);
1305 error (_("Internal error in octal conversion;"));
1309 cycle = cycle % BITS_IN_OCTAL;
1314 for (p = valaddr + len - 1;
1321 /* Carry out, no carry in */
1323 octa1 = (HIGH_ZERO & *p) >> 5;
1324 octa2 = (LOW_ZERO & *p) >> 2;
1325 carry = (CARRY_ZERO & *p);
1326 fprintf_filtered (stream, "%o", octa1);
1327 fprintf_filtered (stream, "%o", octa2);
1331 /* Carry in, carry out */
1333 octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7);
1334 octa2 = (MID_ONE & *p) >> 4;
1335 octa3 = (LOW_ONE & *p) >> 1;
1336 carry = (CARRY_ONE & *p);
1337 fprintf_filtered (stream, "%o", octa1);
1338 fprintf_filtered (stream, "%o", octa2);
1339 fprintf_filtered (stream, "%o", octa3);
1343 /* Carry in, no carry out */
1345 octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6);
1346 octa2 = (MID_TWO & *p) >> 3;
1347 octa3 = (LOW_TWO & *p);
1349 fprintf_filtered (stream, "%o", octa1);
1350 fprintf_filtered (stream, "%o", octa2);
1351 fprintf_filtered (stream, "%o", octa3);
1355 error (_("Internal error in octal conversion;"));
1359 cycle = cycle % BITS_IN_OCTAL;
1365 /* VALADDR points to an integer of LEN bytes.
1366 Print it in decimal on stream or format it in buf. */
1369 print_decimal_chars (struct ui_file *stream, const gdb_byte *valaddr,
1370 unsigned len, enum bfd_endian byte_order)
1373 #define CARRY_OUT( x ) ((x) / TEN) /* extend char to int */
1374 #define CARRY_LEFT( x ) ((x) % TEN)
1375 #define SHIFT( x ) ((x) << 4)
1376 #define LOW_NIBBLE( x ) ( (x) & 0x00F)
1377 #define HIGH_NIBBLE( x ) (((x) & 0x0F0) >> 4)
1380 unsigned char *digits;
1383 int i, j, decimal_digits;
1387 /* Base-ten number is less than twice as many digits
1388 as the base 16 number, which is 2 digits per byte. */
1390 decimal_len = len * 2 * 2;
1391 digits = xmalloc (decimal_len);
1393 for (i = 0; i < decimal_len; i++)
1398 /* Ok, we have an unknown number of bytes of data to be printed in
1401 * Given a hex number (in nibbles) as XYZ, we start by taking X and
1402 * decemalizing it as "x1 x2" in two decimal nibbles. Then we multiply
1403 * the nibbles by 16, add Y and re-decimalize. Repeat with Z.
1405 * The trick is that "digits" holds a base-10 number, but sometimes
1406 * the individual digits are > 10.
1408 * Outer loop is per nibble (hex digit) of input, from MSD end to
1411 decimal_digits = 0; /* Number of decimal digits so far */
1412 p = (byte_order == BFD_ENDIAN_BIG) ? valaddr : valaddr + len - 1;
1414 while ((byte_order == BFD_ENDIAN_BIG) ? (p < valaddr + len) : (p >= valaddr))
1417 * Multiply current base-ten number by 16 in place.
1418 * Each digit was between 0 and 9, now is between
1421 for (j = 0; j < decimal_digits; j++)
1423 digits[j] = SHIFT (digits[j]);
1426 /* Take the next nibble off the input and add it to what
1427 * we've got in the LSB position. Bottom 'digit' is now
1428 * between 0 and 159.
1430 * "flip" is used to run this loop twice for each byte.
1434 /* Take top nibble. */
1436 digits[0] += HIGH_NIBBLE (*p);
1441 /* Take low nibble and bump our pointer "p". */
1443 digits[0] += LOW_NIBBLE (*p);
1444 if (byte_order == BFD_ENDIAN_BIG)
1451 /* Re-decimalize. We have to do this often enough
1452 * that we don't overflow, but once per nibble is
1453 * overkill. Easier this way, though. Note that the
1454 * carry is often larger than 10 (e.g. max initial
1455 * carry out of lowest nibble is 15, could bubble all
1456 * the way up greater than 10). So we have to do
1457 * the carrying beyond the last current digit.
1460 for (j = 0; j < decimal_len - 1; j++)
1464 /* "/" won't handle an unsigned char with
1465 * a value that if signed would be negative.
1466 * So extend to longword int via "dummy".
1469 carry = CARRY_OUT (dummy);
1470 digits[j] = CARRY_LEFT (dummy);
1472 if (j >= decimal_digits && carry == 0)
1475 * All higher digits are 0 and we
1476 * no longer have a carry.
1478 * Note: "j" is 0-based, "decimal_digits" is
1481 decimal_digits = j + 1;
1487 /* Ok, now "digits" is the decimal representation, with
1488 the "decimal_digits" actual digits. Print! */
1490 for (i = decimal_digits - 1; i >= 0; i--)
1492 fprintf_filtered (stream, "%1d", digits[i]);
1497 /* VALADDR points to an integer of LEN bytes. Print it in hex on stream. */
1500 print_hex_chars (struct ui_file *stream, const gdb_byte *valaddr,
1501 unsigned len, enum bfd_endian byte_order)
1505 /* FIXME: We should be not printing leading zeroes in most cases. */
1507 fputs_filtered ("0x", stream);
1508 if (byte_order == BFD_ENDIAN_BIG)
1514 fprintf_filtered (stream, "%02x", *p);
1519 for (p = valaddr + len - 1;
1523 fprintf_filtered (stream, "%02x", *p);
1528 /* VALADDR points to a char integer of LEN bytes.
1529 Print it out in appropriate language form on stream.
1530 Omit any leading zero chars. */
1533 print_char_chars (struct ui_file *stream, struct type *type,
1534 const gdb_byte *valaddr,
1535 unsigned len, enum bfd_endian byte_order)
1539 if (byte_order == BFD_ENDIAN_BIG)
1542 while (p < valaddr + len - 1 && *p == 0)
1545 while (p < valaddr + len)
1547 LA_EMIT_CHAR (*p, type, stream, '\'');
1553 p = valaddr + len - 1;
1554 while (p > valaddr && *p == 0)
1557 while (p >= valaddr)
1559 LA_EMIT_CHAR (*p, type, stream, '\'');
1565 /* Print function pointer with inferior address ADDRESS onto stdio
1569 print_function_pointer_address (const struct value_print_options *options,
1570 struct gdbarch *gdbarch,
1572 struct ui_file *stream)
1575 = gdbarch_convert_from_func_ptr_addr (gdbarch, address,
1578 /* If the function pointer is represented by a description, print
1579 the address of the description. */
1580 if (options->addressprint && func_addr != address)
1582 fputs_filtered ("@", stream);
1583 fputs_filtered (paddress (gdbarch, address), stream);
1584 fputs_filtered (": ", stream);
1586 print_address_demangle (options, gdbarch, func_addr, stream, demangle);
1590 /* Print on STREAM using the given OPTIONS the index for the element
1591 at INDEX of an array whose index type is INDEX_TYPE. */
1594 maybe_print_array_index (struct type *index_type, LONGEST index,
1595 struct ui_file *stream,
1596 const struct value_print_options *options)
1598 struct value *index_value;
1600 if (!options->print_array_indexes)
1603 index_value = value_from_longest (index_type, index);
1605 LA_PRINT_ARRAY_INDEX (index_value, stream, options);
1608 /* Called by various <lang>_val_print routines to print elements of an
1609 array in the form "<elem1>, <elem2>, <elem3>, ...".
1611 (FIXME?) Assumes array element separator is a comma, which is correct
1612 for all languages currently handled.
1613 (FIXME?) Some languages have a notation for repeated array elements,
1614 perhaps we should try to use that notation when appropriate. */
1617 val_print_array_elements (struct type *type,
1618 const gdb_byte *valaddr, int embedded_offset,
1619 CORE_ADDR address, struct ui_file *stream,
1621 const struct value *val,
1622 const struct value_print_options *options,
1625 unsigned int things_printed = 0;
1627 struct type *elttype, *index_type;
1629 /* Position of the array element we are examining to see
1630 whether it is repeated. */
1632 /* Number of repetitions we have detected so far. */
1634 LONGEST low_bound, high_bound;
1636 elttype = TYPE_TARGET_TYPE (type);
1637 eltlen = TYPE_LENGTH (check_typedef (elttype));
1638 index_type = TYPE_INDEX_TYPE (type);
1640 if (get_array_bounds (type, &low_bound, &high_bound))
1642 /* The array length should normally be HIGH_BOUND - LOW_BOUND + 1.
1643 But we have to be a little extra careful, because some languages
1644 such as Ada allow LOW_BOUND to be greater than HIGH_BOUND for
1645 empty arrays. In that situation, the array length is just zero,
1647 if (low_bound > high_bound)
1650 len = high_bound - low_bound + 1;
1654 warning (_("unable to get bounds of array, assuming null array"));
1659 annotate_array_section_begin (i, elttype);
1661 for (; i < len && things_printed < options->print_max; i++)
1665 if (options->prettyformat_arrays)
1667 fprintf_filtered (stream, ",\n");
1668 print_spaces_filtered (2 + 2 * recurse, stream);
1672 fprintf_filtered (stream, ", ");
1675 wrap_here (n_spaces (2 + 2 * recurse));
1676 maybe_print_array_index (index_type, i + low_bound,
1681 /* Only check for reps if repeat_count_threshold is not set to
1682 UINT_MAX (unlimited). */
1683 if (options->repeat_count_threshold < UINT_MAX)
1686 && value_contents_eq (val,
1687 embedded_offset + i * eltlen,
1698 if (reps > options->repeat_count_threshold)
1700 val_print (elttype, valaddr, embedded_offset + i * eltlen,
1701 address, stream, recurse + 1, val, options,
1703 annotate_elt_rep (reps);
1704 fprintf_filtered (stream, " <repeats %u times>", reps);
1705 annotate_elt_rep_end ();
1708 things_printed += options->repeat_count_threshold;
1712 val_print (elttype, valaddr, embedded_offset + i * eltlen,
1714 stream, recurse + 1, val, options, current_language);
1719 annotate_array_section_end ();
1722 fprintf_filtered (stream, "...");
1726 /* Read LEN bytes of target memory at address MEMADDR, placing the
1727 results in GDB's memory at MYADDR. Returns a count of the bytes
1728 actually read, and optionally a target_xfer_status value in the
1729 location pointed to by ERRPTR if ERRPTR is non-null. */
1731 /* FIXME: cagney/1999-10-14: Only used by val_print_string. Can this
1732 function be eliminated. */
1735 partial_memory_read (CORE_ADDR memaddr, gdb_byte *myaddr,
1736 int len, int *errptr)
1738 int nread; /* Number of bytes actually read. */
1739 int errcode; /* Error from last read. */
1741 /* First try a complete read. */
1742 errcode = target_read_memory (memaddr, myaddr, len);
1750 /* Loop, reading one byte at a time until we get as much as we can. */
1751 for (errcode = 0, nread = 0; len > 0 && errcode == 0; nread++, len--)
1753 errcode = target_read_memory (memaddr++, myaddr++, 1);
1755 /* If an error, the last read was unsuccessful, so adjust count. */
1768 /* Read a string from the inferior, at ADDR, with LEN characters of WIDTH bytes
1769 each. Fetch at most FETCHLIMIT characters. BUFFER will be set to a newly
1770 allocated buffer containing the string, which the caller is responsible to
1771 free, and BYTES_READ will be set to the number of bytes read. Returns 0 on
1772 success, or a target_xfer_status on failure.
1774 If LEN > 0, reads the lesser of LEN or FETCHLIMIT characters
1775 (including eventual NULs in the middle or end of the string).
1777 If LEN is -1, stops at the first null character (not necessarily
1778 the first null byte) up to a maximum of FETCHLIMIT characters. Set
1779 FETCHLIMIT to UINT_MAX to read as many characters as possible from
1782 Unless an exception is thrown, BUFFER will always be allocated, even on
1783 failure. In this case, some characters might have been read before the
1784 failure happened. Check BYTES_READ to recognize this situation.
1786 Note: There was a FIXME asking to make this code use target_read_string,
1787 but this function is more general (can read past null characters, up to
1788 given LEN). Besides, it is used much more often than target_read_string
1789 so it is more tested. Perhaps callers of target_read_string should use
1790 this function instead? */
1793 read_string (CORE_ADDR addr, int len, int width, unsigned int fetchlimit,
1794 enum bfd_endian byte_order, gdb_byte **buffer, int *bytes_read)
1796 int errcode; /* Errno returned from bad reads. */
1797 unsigned int nfetch; /* Chars to fetch / chars fetched. */
1798 gdb_byte *bufptr; /* Pointer to next available byte in
1800 struct cleanup *old_chain = NULL; /* Top of the old cleanup chain. */
1802 /* Loop until we either have all the characters, or we encounter
1803 some error, such as bumping into the end of the address space. */
1807 old_chain = make_cleanup (free_current_contents, buffer);
1811 /* We want fetchlimit chars, so we might as well read them all in
1813 unsigned int fetchlen = min (len, fetchlimit);
1815 *buffer = (gdb_byte *) xmalloc (fetchlen * width);
1818 nfetch = partial_memory_read (addr, bufptr, fetchlen * width, &errcode)
1820 addr += nfetch * width;
1821 bufptr += nfetch * width;
1825 unsigned long bufsize = 0;
1826 unsigned int chunksize; /* Size of each fetch, in chars. */
1827 int found_nul; /* Non-zero if we found the nul char. */
1828 gdb_byte *limit; /* First location past end of fetch buffer. */
1831 /* We are looking for a NUL terminator to end the fetching, so we
1832 might as well read in blocks that are large enough to be efficient,
1833 but not so large as to be slow if fetchlimit happens to be large.
1834 So we choose the minimum of 8 and fetchlimit. We used to use 200
1835 instead of 8 but 200 is way too big for remote debugging over a
1837 chunksize = min (8, fetchlimit);
1842 nfetch = min (chunksize, fetchlimit - bufsize);
1844 if (*buffer == NULL)
1845 *buffer = (gdb_byte *) xmalloc (nfetch * width);
1847 *buffer = (gdb_byte *) xrealloc (*buffer,
1848 (nfetch + bufsize) * width);
1850 bufptr = *buffer + bufsize * width;
1853 /* Read as much as we can. */
1854 nfetch = partial_memory_read (addr, bufptr, nfetch * width, &errcode)
1857 /* Scan this chunk for the null character that terminates the string
1858 to print. If found, we don't need to fetch any more. Note
1859 that bufptr is explicitly left pointing at the next character
1860 after the null character, or at the next character after the end
1863 limit = bufptr + nfetch * width;
1864 while (bufptr < limit)
1868 c = extract_unsigned_integer (bufptr, width, byte_order);
1873 /* We don't care about any error which happened after
1874 the NUL terminator. */
1881 while (errcode == 0 /* no error */
1882 && bufptr - *buffer < fetchlimit * width /* no overrun */
1883 && !found_nul); /* haven't found NUL yet */
1886 { /* Length of string is really 0! */
1887 /* We always allocate *buffer. */
1888 *buffer = bufptr = xmalloc (1);
1892 /* bufptr and addr now point immediately beyond the last byte which we
1893 consider part of the string (including a '\0' which ends the string). */
1894 *bytes_read = bufptr - *buffer;
1898 discard_cleanups (old_chain);
1903 /* Return true if print_wchar can display W without resorting to a
1904 numeric escape, false otherwise. */
1907 wchar_printable (gdb_wchar_t w)
1909 return (gdb_iswprint (w)
1910 || w == LCST ('\a') || w == LCST ('\b')
1911 || w == LCST ('\f') || w == LCST ('\n')
1912 || w == LCST ('\r') || w == LCST ('\t')
1913 || w == LCST ('\v'));
1916 /* A helper function that converts the contents of STRING to wide
1917 characters and then appends them to OUTPUT. */
1920 append_string_as_wide (const char *string,
1921 struct obstack *output)
1923 for (; *string; ++string)
1925 gdb_wchar_t w = gdb_btowc (*string);
1926 obstack_grow (output, &w, sizeof (gdb_wchar_t));
1930 /* Print a wide character W to OUTPUT. ORIG is a pointer to the
1931 original (target) bytes representing the character, ORIG_LEN is the
1932 number of valid bytes. WIDTH is the number of bytes in a base
1933 characters of the type. OUTPUT is an obstack to which wide
1934 characters are emitted. QUOTER is a (narrow) character indicating
1935 the style of quotes surrounding the character to be printed.
1936 NEED_ESCAPE is an in/out flag which is used to track numeric
1937 escapes across calls. */
1940 print_wchar (gdb_wint_t w, const gdb_byte *orig,
1941 int orig_len, int width,
1942 enum bfd_endian byte_order,
1943 struct obstack *output,
1944 int quoter, int *need_escapep)
1946 int need_escape = *need_escapep;
1950 /* iswprint implementation on Windows returns 1 for tab character.
1951 In order to avoid different printout on this host, we explicitly
1952 use wchar_printable function. */
1956 obstack_grow_wstr (output, LCST ("\\a"));
1959 obstack_grow_wstr (output, LCST ("\\b"));
1962 obstack_grow_wstr (output, LCST ("\\f"));
1965 obstack_grow_wstr (output, LCST ("\\n"));
1968 obstack_grow_wstr (output, LCST ("\\r"));
1971 obstack_grow_wstr (output, LCST ("\\t"));
1974 obstack_grow_wstr (output, LCST ("\\v"));
1978 if (wchar_printable (w) && (!need_escape || (!gdb_iswdigit (w)
1980 && w != LCST ('9'))))
1982 gdb_wchar_t wchar = w;
1984 if (w == gdb_btowc (quoter) || w == LCST ('\\'))
1985 obstack_grow_wstr (output, LCST ("\\"));
1986 obstack_grow (output, &wchar, sizeof (gdb_wchar_t));
1992 for (i = 0; i + width <= orig_len; i += width)
1997 value = extract_unsigned_integer (&orig[i], width,
1999 /* If the value fits in 3 octal digits, print it that
2000 way. Otherwise, print it as a hex escape. */
2002 xsnprintf (octal, sizeof (octal), "\\%.3o",
2003 (int) (value & 0777));
2005 xsnprintf (octal, sizeof (octal), "\\x%lx", (long) value);
2006 append_string_as_wide (octal, output);
2008 /* If we somehow have extra bytes, print them now. */
2009 while (i < orig_len)
2013 xsnprintf (octal, sizeof (octal), "\\%.3o", orig[i] & 0xff);
2014 append_string_as_wide (octal, output);
2025 /* Print the character C on STREAM as part of the contents of a
2026 literal string whose delimiter is QUOTER. ENCODING names the
2030 generic_emit_char (int c, struct type *type, struct ui_file *stream,
2031 int quoter, const char *encoding)
2033 enum bfd_endian byte_order
2034 = gdbarch_byte_order (get_type_arch (type));
2035 struct obstack wchar_buf, output;
2036 struct cleanup *cleanups;
2038 struct wchar_iterator *iter;
2039 int need_escape = 0;
2041 buf = alloca (TYPE_LENGTH (type));
2042 pack_long (buf, type, c);
2044 iter = make_wchar_iterator (buf, TYPE_LENGTH (type),
2045 encoding, TYPE_LENGTH (type));
2046 cleanups = make_cleanup_wchar_iterator (iter);
2048 /* This holds the printable form of the wchar_t data. */
2049 obstack_init (&wchar_buf);
2050 make_cleanup_obstack_free (&wchar_buf);
2056 const gdb_byte *buf;
2058 int print_escape = 1;
2059 enum wchar_iterate_result result;
2061 num_chars = wchar_iterate (iter, &result, &chars, &buf, &buflen);
2066 /* If all characters are printable, print them. Otherwise,
2067 we're going to have to print an escape sequence. We
2068 check all characters because we want to print the target
2069 bytes in the escape sequence, and we don't know character
2070 boundaries there. */
2074 for (i = 0; i < num_chars; ++i)
2075 if (!wchar_printable (chars[i]))
2083 for (i = 0; i < num_chars; ++i)
2084 print_wchar (chars[i], buf, buflen,
2085 TYPE_LENGTH (type), byte_order,
2086 &wchar_buf, quoter, &need_escape);
2090 /* This handles the NUM_CHARS == 0 case as well. */
2092 print_wchar (gdb_WEOF, buf, buflen, TYPE_LENGTH (type),
2093 byte_order, &wchar_buf, quoter, &need_escape);
2096 /* The output in the host encoding. */
2097 obstack_init (&output);
2098 make_cleanup_obstack_free (&output);
2100 convert_between_encodings (INTERMEDIATE_ENCODING, host_charset (),
2101 (gdb_byte *) obstack_base (&wchar_buf),
2102 obstack_object_size (&wchar_buf),
2103 sizeof (gdb_wchar_t), &output, translit_char);
2104 obstack_1grow (&output, '\0');
2106 fputs_filtered (obstack_base (&output), stream);
2108 do_cleanups (cleanups);
2111 /* Return the repeat count of the next character/byte in ITER,
2112 storing the result in VEC. */
2115 count_next_character (struct wchar_iterator *iter,
2116 VEC (converted_character_d) **vec)
2118 struct converted_character *current;
2120 if (VEC_empty (converted_character_d, *vec))
2122 struct converted_character tmp;
2126 = wchar_iterate (iter, &tmp.result, &chars, &tmp.buf, &tmp.buflen);
2127 if (tmp.num_chars > 0)
2129 gdb_assert (tmp.num_chars < MAX_WCHARS);
2130 memcpy (tmp.chars, chars, tmp.num_chars * sizeof (gdb_wchar_t));
2132 VEC_safe_push (converted_character_d, *vec, &tmp);
2135 current = VEC_last (converted_character_d, *vec);
2137 /* Count repeated characters or bytes. */
2138 current->repeat_count = 1;
2139 if (current->num_chars == -1)
2147 struct converted_character d;
2154 /* Get the next character. */
2156 = wchar_iterate (iter, &d.result, &chars, &d.buf, &d.buflen);
2158 /* If a character was successfully converted, save the character
2159 into the converted character. */
2160 if (d.num_chars > 0)
2162 gdb_assert (d.num_chars < MAX_WCHARS);
2163 memcpy (d.chars, chars, WCHAR_BUFLEN (d.num_chars));
2166 /* Determine if the current character is the same as this
2168 if (d.num_chars == current->num_chars && d.result == current->result)
2170 /* There are two cases to consider:
2172 1) Equality of converted character (num_chars > 0)
2173 2) Equality of non-converted character (num_chars == 0) */
2174 if ((current->num_chars > 0
2175 && memcmp (current->chars, d.chars,
2176 WCHAR_BUFLEN (current->num_chars)) == 0)
2177 || (current->num_chars == 0
2178 && current->buflen == d.buflen
2179 && memcmp (current->buf, d.buf, current->buflen) == 0))
2180 ++current->repeat_count;
2188 /* Push this next converted character onto the result vector. */
2189 repeat = current->repeat_count;
2190 VEC_safe_push (converted_character_d, *vec, &d);
2195 /* Print the characters in CHARS to the OBSTACK. QUOTE_CHAR is the quote
2196 character to use with string output. WIDTH is the size of the output
2197 character type. BYTE_ORDER is the the target byte order. OPTIONS
2198 is the user's print options. */
2201 print_converted_chars_to_obstack (struct obstack *obstack,
2202 VEC (converted_character_d) *chars,
2203 int quote_char, int width,
2204 enum bfd_endian byte_order,
2205 const struct value_print_options *options)
2208 struct converted_character *elem;
2209 enum {START, SINGLE, REPEAT, INCOMPLETE, FINISH} state, last;
2210 gdb_wchar_t wide_quote_char = gdb_btowc (quote_char);
2211 int need_escape = 0;
2213 /* Set the start state. */
2215 last = state = START;
2223 /* Nothing to do. */
2230 /* We are outputting a single character
2231 (< options->repeat_count_threshold). */
2235 /* We were outputting some other type of content, so we
2236 must output and a comma and a quote. */
2238 obstack_grow_wstr (obstack, LCST (", "));
2239 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
2241 /* Output the character. */
2242 for (j = 0; j < elem->repeat_count; ++j)
2244 if (elem->result == wchar_iterate_ok)
2245 print_wchar (elem->chars[0], elem->buf, elem->buflen, width,
2246 byte_order, obstack, quote_char, &need_escape);
2248 print_wchar (gdb_WEOF, elem->buf, elem->buflen, width,
2249 byte_order, obstack, quote_char, &need_escape);
2259 /* We are outputting a character with a repeat count
2260 greater than options->repeat_count_threshold. */
2264 /* We were outputting a single string. Terminate the
2266 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
2269 obstack_grow_wstr (obstack, LCST (", "));
2271 /* Output the character and repeat string. */
2272 obstack_grow_wstr (obstack, LCST ("'"));
2273 if (elem->result == wchar_iterate_ok)
2274 print_wchar (elem->chars[0], elem->buf, elem->buflen, width,
2275 byte_order, obstack, quote_char, &need_escape);
2277 print_wchar (gdb_WEOF, elem->buf, elem->buflen, width,
2278 byte_order, obstack, quote_char, &need_escape);
2279 obstack_grow_wstr (obstack, LCST ("'"));
2280 s = xstrprintf (_(" <repeats %u times>"), elem->repeat_count);
2281 for (j = 0; s[j]; ++j)
2283 gdb_wchar_t w = gdb_btowc (s[j]);
2284 obstack_grow (obstack, &w, sizeof (gdb_wchar_t));
2291 /* We are outputting an incomplete sequence. */
2294 /* If we were outputting a string of SINGLE characters,
2295 terminate the quote. */
2296 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
2299 obstack_grow_wstr (obstack, LCST (", "));
2301 /* Output the incomplete sequence string. */
2302 obstack_grow_wstr (obstack, LCST ("<incomplete sequence "));
2303 print_wchar (gdb_WEOF, elem->buf, elem->buflen, width, byte_order,
2304 obstack, 0, &need_escape);
2305 obstack_grow_wstr (obstack, LCST (">"));
2307 /* We do not attempt to outupt anything after this. */
2312 /* All done. If we were outputting a string of SINGLE
2313 characters, the string must be terminated. Otherwise,
2314 REPEAT and INCOMPLETE are always left properly terminated. */
2316 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
2321 /* Get the next element and state. */
2323 if (state != FINISH)
2325 elem = VEC_index (converted_character_d, chars, idx++);
2326 switch (elem->result)
2328 case wchar_iterate_ok:
2329 case wchar_iterate_invalid:
2330 if (elem->repeat_count > options->repeat_count_threshold)
2336 case wchar_iterate_incomplete:
2340 case wchar_iterate_eof:
2348 /* Print the character string STRING, printing at most LENGTH
2349 characters. LENGTH is -1 if the string is nul terminated. TYPE is
2350 the type of each character. OPTIONS holds the printing options;
2351 printing stops early if the number hits print_max; repeat counts
2352 are printed as appropriate. Print ellipses at the end if we had to
2353 stop before printing LENGTH characters, or if FORCE_ELLIPSES.
2354 QUOTE_CHAR is the character to print at each end of the string. If
2355 C_STYLE_TERMINATOR is true, and the last character is 0, then it is
2359 generic_printstr (struct ui_file *stream, struct type *type,
2360 const gdb_byte *string, unsigned int length,
2361 const char *encoding, int force_ellipses,
2362 int quote_char, int c_style_terminator,
2363 const struct value_print_options *options)
2365 enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
2367 int width = TYPE_LENGTH (type);
2368 struct obstack wchar_buf, output;
2369 struct cleanup *cleanup;
2370 struct wchar_iterator *iter;
2372 struct converted_character *last;
2373 VEC (converted_character_d) *converted_chars;
2377 unsigned long current_char = 1;
2379 for (i = 0; current_char; ++i)
2382 current_char = extract_unsigned_integer (string + i * width,
2388 /* If the string was not truncated due to `set print elements', and
2389 the last byte of it is a null, we don't print that, in
2390 traditional C style. */
2391 if (c_style_terminator
2394 && (extract_unsigned_integer (string + (length - 1) * width,
2395 width, byte_order) == 0))
2400 fputs_filtered ("\"\"", stream);
2404 /* Arrange to iterate over the characters, in wchar_t form. */
2405 iter = make_wchar_iterator (string, length * width, encoding, width);
2406 cleanup = make_cleanup_wchar_iterator (iter);
2407 converted_chars = NULL;
2408 make_cleanup (VEC_cleanup (converted_character_d), &converted_chars);
2410 /* Convert characters until the string is over or the maximum
2411 number of printed characters has been reached. */
2413 while (i < options->print_max)
2419 /* Grab the next character and repeat count. */
2420 r = count_next_character (iter, &converted_chars);
2422 /* If less than zero, the end of the input string was reached. */
2426 /* Otherwise, add the count to the total print count and get
2427 the next character. */
2431 /* Get the last element and determine if the entire string was
2433 last = VEC_last (converted_character_d, converted_chars);
2434 finished = (last->result == wchar_iterate_eof);
2436 /* Ensure that CONVERTED_CHARS is terminated. */
2437 last->result = wchar_iterate_eof;
2439 /* WCHAR_BUF is the obstack we use to represent the string in
2441 obstack_init (&wchar_buf);
2442 make_cleanup_obstack_free (&wchar_buf);
2444 /* Print the output string to the obstack. */
2445 print_converted_chars_to_obstack (&wchar_buf, converted_chars, quote_char,
2446 width, byte_order, options);
2448 if (force_ellipses || !finished)
2449 obstack_grow_wstr (&wchar_buf, LCST ("..."));
2451 /* OUTPUT is where we collect `char's for printing. */
2452 obstack_init (&output);
2453 make_cleanup_obstack_free (&output);
2455 convert_between_encodings (INTERMEDIATE_ENCODING, host_charset (),
2456 (gdb_byte *) obstack_base (&wchar_buf),
2457 obstack_object_size (&wchar_buf),
2458 sizeof (gdb_wchar_t), &output, translit_char);
2459 obstack_1grow (&output, '\0');
2461 fputs_filtered (obstack_base (&output), stream);
2463 do_cleanups (cleanup);
2466 /* Print a string from the inferior, starting at ADDR and printing up to LEN
2467 characters, of WIDTH bytes a piece, to STREAM. If LEN is -1, printing
2468 stops at the first null byte, otherwise printing proceeds (including null
2469 bytes) until either print_max or LEN characters have been printed,
2470 whichever is smaller. ENCODING is the name of the string's
2471 encoding. It can be NULL, in which case the target encoding is
2475 val_print_string (struct type *elttype, const char *encoding,
2476 CORE_ADDR addr, int len,
2477 struct ui_file *stream,
2478 const struct value_print_options *options)
2480 int force_ellipsis = 0; /* Force ellipsis to be printed if nonzero. */
2481 int errcode; /* Errno returned from bad reads. */
2482 int found_nul; /* Non-zero if we found the nul char. */
2483 unsigned int fetchlimit; /* Maximum number of chars to print. */
2485 gdb_byte *buffer = NULL; /* Dynamically growable fetch buffer. */
2486 struct cleanup *old_chain = NULL; /* Top of the old cleanup chain. */
2487 struct gdbarch *gdbarch = get_type_arch (elttype);
2488 enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
2489 int width = TYPE_LENGTH (elttype);
2491 /* First we need to figure out the limit on the number of characters we are
2492 going to attempt to fetch and print. This is actually pretty simple. If
2493 LEN >= zero, then the limit is the minimum of LEN and print_max. If
2494 LEN is -1, then the limit is print_max. This is true regardless of
2495 whether print_max is zero, UINT_MAX (unlimited), or something in between,
2496 because finding the null byte (or available memory) is what actually
2497 limits the fetch. */
2499 fetchlimit = (len == -1 ? options->print_max : min (len,
2500 options->print_max));
2502 errcode = read_string (addr, len, width, fetchlimit, byte_order,
2503 &buffer, &bytes_read);
2504 old_chain = make_cleanup (xfree, buffer);
2508 /* We now have either successfully filled the buffer to fetchlimit,
2509 or terminated early due to an error or finding a null char when
2512 /* Determine found_nul by looking at the last character read. */
2514 if (bytes_read >= width)
2515 found_nul = extract_unsigned_integer (buffer + bytes_read - width, width,
2517 if (len == -1 && !found_nul)
2521 /* We didn't find a NUL terminator we were looking for. Attempt
2522 to peek at the next character. If not successful, or it is not
2523 a null byte, then force ellipsis to be printed. */
2525 peekbuf = (gdb_byte *) alloca (width);
2527 if (target_read_memory (addr, peekbuf, width) == 0
2528 && extract_unsigned_integer (peekbuf, width, byte_order) != 0)
2531 else if ((len >= 0 && errcode != 0) || (len > bytes_read / width))
2533 /* Getting an error when we have a requested length, or fetching less
2534 than the number of characters actually requested, always make us
2539 /* If we get an error before fetching anything, don't print a string.
2540 But if we fetch something and then get an error, print the string
2541 and then the error message. */
2542 if (errcode == 0 || bytes_read > 0)
2544 LA_PRINT_STRING (stream, elttype, buffer, bytes_read / width,
2545 encoding, force_ellipsis, options);
2552 str = memory_error_message (errcode, gdbarch, addr);
2553 make_cleanup (xfree, str);
2555 fprintf_filtered (stream, "<error: ");
2556 fputs_filtered (str, stream);
2557 fprintf_filtered (stream, ">");
2561 do_cleanups (old_chain);
2563 return (bytes_read / width);
2567 /* The 'set input-radix' command writes to this auxiliary variable.
2568 If the requested radix is valid, INPUT_RADIX is updated; otherwise,
2569 it is left unchanged. */
2571 static unsigned input_radix_1 = 10;
2573 /* Validate an input or output radix setting, and make sure the user
2574 knows what they really did here. Radix setting is confusing, e.g.
2575 setting the input radix to "10" never changes it! */
2578 set_input_radix (char *args, int from_tty, struct cmd_list_element *c)
2580 set_input_radix_1 (from_tty, input_radix_1);
2584 set_input_radix_1 (int from_tty, unsigned radix)
2586 /* We don't currently disallow any input radix except 0 or 1, which don't
2587 make any mathematical sense. In theory, we can deal with any input
2588 radix greater than 1, even if we don't have unique digits for every
2589 value from 0 to radix-1, but in practice we lose on large radix values.
2590 We should either fix the lossage or restrict the radix range more.
2595 input_radix_1 = input_radix;
2596 error (_("Nonsense input radix ``decimal %u''; input radix unchanged."),
2599 input_radix_1 = input_radix = radix;
2602 printf_filtered (_("Input radix now set to "
2603 "decimal %u, hex %x, octal %o.\n"),
2604 radix, radix, radix);
2608 /* The 'set output-radix' command writes to this auxiliary variable.
2609 If the requested radix is valid, OUTPUT_RADIX is updated,
2610 otherwise, it is left unchanged. */
2612 static unsigned output_radix_1 = 10;
2615 set_output_radix (char *args, int from_tty, struct cmd_list_element *c)
2617 set_output_radix_1 (from_tty, output_radix_1);
2621 set_output_radix_1 (int from_tty, unsigned radix)
2623 /* Validate the radix and disallow ones that we aren't prepared to
2624 handle correctly, leaving the radix unchanged. */
2628 user_print_options.output_format = 'x'; /* hex */
2631 user_print_options.output_format = 0; /* decimal */
2634 user_print_options.output_format = 'o'; /* octal */
2637 output_radix_1 = output_radix;
2638 error (_("Unsupported output radix ``decimal %u''; "
2639 "output radix unchanged."),
2642 output_radix_1 = output_radix = radix;
2645 printf_filtered (_("Output radix now set to "
2646 "decimal %u, hex %x, octal %o.\n"),
2647 radix, radix, radix);
2651 /* Set both the input and output radix at once. Try to set the output radix
2652 first, since it has the most restrictive range. An radix that is valid as
2653 an output radix is also valid as an input radix.
2655 It may be useful to have an unusual input radix. If the user wishes to
2656 set an input radix that is not valid as an output radix, he needs to use
2657 the 'set input-radix' command. */
2660 set_radix (char *arg, int from_tty)
2664 radix = (arg == NULL) ? 10 : parse_and_eval_long (arg);
2665 set_output_radix_1 (0, radix);
2666 set_input_radix_1 (0, radix);
2669 printf_filtered (_("Input and output radices now set to "
2670 "decimal %u, hex %x, octal %o.\n"),
2671 radix, radix, radix);
2675 /* Show both the input and output radices. */
2678 show_radix (char *arg, int from_tty)
2682 if (input_radix == output_radix)
2684 printf_filtered (_("Input and output radices set to "
2685 "decimal %u, hex %x, octal %o.\n"),
2686 input_radix, input_radix, input_radix);
2690 printf_filtered (_("Input radix set to decimal "
2691 "%u, hex %x, octal %o.\n"),
2692 input_radix, input_radix, input_radix);
2693 printf_filtered (_("Output radix set to decimal "
2694 "%u, hex %x, octal %o.\n"),
2695 output_radix, output_radix, output_radix);
2702 set_print (char *arg, int from_tty)
2705 "\"set print\" must be followed by the name of a print subcommand.\n");
2706 help_list (setprintlist, "set print ", all_commands, gdb_stdout);
2710 show_print (char *args, int from_tty)
2712 cmd_show_list (showprintlist, from_tty, "");
2716 set_print_raw (char *arg, int from_tty)
2719 "\"set print raw\" must be followed by the name of a \"print raw\" subcommand.\n");
2720 help_list (setprintrawlist, "set print raw ", all_commands, gdb_stdout);
2724 show_print_raw (char *args, int from_tty)
2726 cmd_show_list (showprintrawlist, from_tty, "");
2731 _initialize_valprint (void)
2733 add_prefix_cmd ("print", no_class, set_print,
2734 _("Generic command for setting how things print."),
2735 &setprintlist, "set print ", 0, &setlist);
2736 add_alias_cmd ("p", "print", no_class, 1, &setlist);
2737 /* Prefer set print to set prompt. */
2738 add_alias_cmd ("pr", "print", no_class, 1, &setlist);
2740 add_prefix_cmd ("print", no_class, show_print,
2741 _("Generic command for showing print settings."),
2742 &showprintlist, "show print ", 0, &showlist);
2743 add_alias_cmd ("p", "print", no_class, 1, &showlist);
2744 add_alias_cmd ("pr", "print", no_class, 1, &showlist);
2746 add_prefix_cmd ("raw", no_class, set_print_raw,
2748 Generic command for setting what things to print in \"raw\" mode."),
2749 &setprintrawlist, "set print raw ", 0, &setprintlist);
2750 add_prefix_cmd ("raw", no_class, show_print_raw,
2751 _("Generic command for showing \"print raw\" settings."),
2752 &showprintrawlist, "show print raw ", 0, &showprintlist);
2754 add_setshow_uinteger_cmd ("elements", no_class,
2755 &user_print_options.print_max, _("\
2756 Set limit on string chars or array elements to print."), _("\
2757 Show limit on string chars or array elements to print."), _("\
2758 \"set print elements unlimited\" causes there to be no limit."),
2761 &setprintlist, &showprintlist);
2763 add_setshow_boolean_cmd ("null-stop", no_class,
2764 &user_print_options.stop_print_at_null, _("\
2765 Set printing of char arrays to stop at first null char."), _("\
2766 Show printing of char arrays to stop at first null char."), NULL,
2768 show_stop_print_at_null,
2769 &setprintlist, &showprintlist);
2771 add_setshow_uinteger_cmd ("repeats", no_class,
2772 &user_print_options.repeat_count_threshold, _("\
2773 Set threshold for repeated print elements."), _("\
2774 Show threshold for repeated print elements."), _("\
2775 \"set print repeats unlimited\" causes all elements to be individually printed."),
2777 show_repeat_count_threshold,
2778 &setprintlist, &showprintlist);
2780 add_setshow_boolean_cmd ("pretty", class_support,
2781 &user_print_options.prettyformat_structs, _("\
2782 Set pretty formatting of structures."), _("\
2783 Show pretty formatting of structures."), NULL,
2785 show_prettyformat_structs,
2786 &setprintlist, &showprintlist);
2788 add_setshow_boolean_cmd ("union", class_support,
2789 &user_print_options.unionprint, _("\
2790 Set printing of unions interior to structures."), _("\
2791 Show printing of unions interior to structures."), NULL,
2794 &setprintlist, &showprintlist);
2796 add_setshow_boolean_cmd ("array", class_support,
2797 &user_print_options.prettyformat_arrays, _("\
2798 Set pretty formatting of arrays."), _("\
2799 Show pretty formatting of arrays."), NULL,
2801 show_prettyformat_arrays,
2802 &setprintlist, &showprintlist);
2804 add_setshow_boolean_cmd ("address", class_support,
2805 &user_print_options.addressprint, _("\
2806 Set printing of addresses."), _("\
2807 Show printing of addresses."), NULL,
2810 &setprintlist, &showprintlist);
2812 add_setshow_boolean_cmd ("symbol", class_support,
2813 &user_print_options.symbol_print, _("\
2814 Set printing of symbol names when printing pointers."), _("\
2815 Show printing of symbol names when printing pointers."),
2818 &setprintlist, &showprintlist);
2820 add_setshow_zuinteger_cmd ("input-radix", class_support, &input_radix_1,
2822 Set default input radix for entering numbers."), _("\
2823 Show default input radix for entering numbers."), NULL,
2826 &setlist, &showlist);
2828 add_setshow_zuinteger_cmd ("output-radix", class_support, &output_radix_1,
2830 Set default output radix for printing of values."), _("\
2831 Show default output radix for printing of values."), NULL,
2834 &setlist, &showlist);
2836 /* The "set radix" and "show radix" commands are special in that
2837 they are like normal set and show commands but allow two normally
2838 independent variables to be either set or shown with a single
2839 command. So the usual deprecated_add_set_cmd() and [deleted]
2840 add_show_from_set() commands aren't really appropriate. */
2841 /* FIXME: i18n: With the new add_setshow_integer command, that is no
2842 longer true - show can display anything. */
2843 add_cmd ("radix", class_support, set_radix, _("\
2844 Set default input and output number radices.\n\
2845 Use 'set input-radix' or 'set output-radix' to independently set each.\n\
2846 Without an argument, sets both radices back to the default value of 10."),
2848 add_cmd ("radix", class_support, show_radix, _("\
2849 Show the default input and output number radices.\n\
2850 Use 'show input-radix' or 'show output-radix' to independently show each."),
2853 add_setshow_boolean_cmd ("array-indexes", class_support,
2854 &user_print_options.print_array_indexes, _("\
2855 Set printing of array indexes."), _("\
2856 Show printing of array indexes"), NULL, NULL, show_print_array_indexes,
2857 &setprintlist, &showprintlist);