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 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)
744 struct value_print_options local_opts = *options;
745 struct type *real_type = check_typedef (type);
747 if (local_opts.prettyformat == Val_prettyformat_default)
748 local_opts.prettyformat = (local_opts.prettyformat_structs
749 ? Val_prettyformat : Val_no_prettyformat);
753 /* Ensure that the type is complete and not just a stub. If the type is
754 only a stub and we can't find and substitute its complete type, then
755 print appropriate string and return. */
757 if (TYPE_STUB (real_type))
759 fprintf_filtered (stream, _("<incomplete type>"));
764 if (!valprint_check_validity (stream, real_type, embedded_offset, val))
769 ret = apply_ext_lang_val_pretty_printer (type, valaddr, embedded_offset,
770 address, stream, recurse,
771 val, options, language);
776 /* Handle summary mode. If the value is a scalar, print it;
777 otherwise, print an ellipsis. */
778 if (options->summary && !val_print_scalar_type_p (type))
780 fprintf_filtered (stream, "...");
786 language->la_val_print (type, valaddr, embedded_offset, address,
787 stream, recurse, val,
790 CATCH (except, RETURN_MASK_ERROR)
792 fprintf_filtered (stream, _("<error reading variable>"));
797 /* Check whether the value VAL is printable. Return 1 if it is;
798 return 0 and print an appropriate error message to STREAM according to
799 OPTIONS if it is not. */
802 value_check_printable (struct value *val, struct ui_file *stream,
803 const struct value_print_options *options)
807 fprintf_filtered (stream, _("<address of value unknown>"));
811 if (value_entirely_optimized_out (val))
813 if (options->summary && !val_print_scalar_type_p (value_type (val)))
814 fprintf_filtered (stream, "...");
816 val_print_optimized_out (val, stream);
820 if (value_entirely_unavailable (val))
822 if (options->summary && !val_print_scalar_type_p (value_type (val)))
823 fprintf_filtered (stream, "...");
825 val_print_unavailable (stream);
829 if (TYPE_CODE (value_type (val)) == TYPE_CODE_INTERNAL_FUNCTION)
831 fprintf_filtered (stream, _("<internal function %s>"),
832 value_internal_function_name (val));
839 /* Print using the given LANGUAGE the value VAL onto stream STREAM according
842 This is a preferable interface to val_print, above, because it uses
843 GDB's value mechanism. */
846 common_val_print (struct value *val, struct ui_file *stream, int recurse,
847 const struct value_print_options *options,
848 const struct language_defn *language)
850 if (!value_check_printable (val, stream, options))
853 if (language->la_language == language_ada)
854 /* The value might have a dynamic type, which would cause trouble
855 below when trying to extract the value contents (since the value
856 size is determined from the type size which is unknown). So
857 get a fixed representation of our value. */
858 val = ada_to_fixed_value (val);
860 val_print (value_type (val), value_contents_for_printing (val),
861 value_embedded_offset (val), value_address (val),
863 val, options, language);
866 /* Print on stream STREAM the value VAL according to OPTIONS. The value
867 is printed using the current_language syntax. */
870 value_print (struct value *val, struct ui_file *stream,
871 const struct value_print_options *options)
873 if (!value_check_printable (val, stream, options))
879 = apply_ext_lang_val_pretty_printer (value_type (val),
880 value_contents_for_printing (val),
881 value_embedded_offset (val),
884 val, options, current_language);
890 LA_VALUE_PRINT (val, stream, options);
893 /* Called by various <lang>_val_print routines to print
894 TYPE_CODE_INT's. TYPE is the type. VALADDR is the address of the
895 value. STREAM is where to print the value. */
898 val_print_type_code_int (struct type *type, const gdb_byte *valaddr,
899 struct ui_file *stream)
901 enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
903 if (TYPE_LENGTH (type) > sizeof (LONGEST))
907 if (TYPE_UNSIGNED (type)
908 && extract_long_unsigned_integer (valaddr, TYPE_LENGTH (type),
911 print_longest (stream, 'u', 0, val);
915 /* Signed, or we couldn't turn an unsigned value into a
916 LONGEST. For signed values, one could assume two's
917 complement (a reasonable assumption, I think) and do
919 print_hex_chars (stream, (unsigned char *) valaddr,
920 TYPE_LENGTH (type), byte_order);
925 print_longest (stream, TYPE_UNSIGNED (type) ? 'u' : 'd', 0,
926 unpack_long (type, valaddr));
931 val_print_type_code_flags (struct type *type, const gdb_byte *valaddr,
932 struct ui_file *stream)
934 ULONGEST val = unpack_long (type, valaddr);
935 int bitpos, nfields = TYPE_NFIELDS (type);
937 fputs_filtered ("[ ", stream);
938 for (bitpos = 0; bitpos < nfields; bitpos++)
940 if (TYPE_FIELD_BITPOS (type, bitpos) != -1
941 && (val & ((ULONGEST)1 << bitpos)))
943 if (TYPE_FIELD_NAME (type, bitpos))
944 fprintf_filtered (stream, "%s ", TYPE_FIELD_NAME (type, bitpos));
946 fprintf_filtered (stream, "#%d ", bitpos);
949 fputs_filtered ("]", stream);
952 /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR,
953 according to OPTIONS and SIZE on STREAM. Format i is not supported
956 This is how the elements of an array or structure are printed
960 val_print_scalar_formatted (struct type *type,
961 const gdb_byte *valaddr, int embedded_offset,
962 const struct value *val,
963 const struct value_print_options *options,
965 struct ui_file *stream)
967 gdb_assert (val != NULL);
968 gdb_assert (valaddr == value_contents_for_printing_const (val));
970 /* If we get here with a string format, try again without it. Go
971 all the way back to the language printers, which may call us
973 if (options->format == 's')
975 struct value_print_options opts = *options;
978 val_print (type, valaddr, embedded_offset, 0, stream, 0, val, &opts,
983 /* A scalar object that does not have all bits available can't be
984 printed, because all bits contribute to its representation. */
985 if (value_bits_any_optimized_out (val,
986 TARGET_CHAR_BIT * embedded_offset,
987 TARGET_CHAR_BIT * TYPE_LENGTH (type)))
988 val_print_optimized_out (val, stream);
989 else if (!value_bytes_available (val, embedded_offset, TYPE_LENGTH (type)))
990 val_print_unavailable (stream);
992 print_scalar_formatted (valaddr + embedded_offset, type,
993 options, size, stream);
996 /* Print a number according to FORMAT which is one of d,u,x,o,b,h,w,g.
997 The raison d'etre of this function is to consolidate printing of
998 LONG_LONG's into this one function. The format chars b,h,w,g are
999 from print_scalar_formatted(). Numbers are printed using C
1002 USE_C_FORMAT means to use C format in all cases. Without it,
1003 'o' and 'x' format do not include the standard C radix prefix
1006 Hilfinger/2004-09-09: USE_C_FORMAT was originally called USE_LOCAL
1007 and was intended to request formating according to the current
1008 language and would be used for most integers that GDB prints. The
1009 exceptional cases were things like protocols where the format of
1010 the integer is a protocol thing, not a user-visible thing). The
1011 parameter remains to preserve the information of what things might
1012 be printed with language-specific format, should we ever resurrect
1016 print_longest (struct ui_file *stream, int format, int use_c_format,
1024 val = int_string (val_long, 10, 1, 0, 1); break;
1026 val = int_string (val_long, 10, 0, 0, 1); break;
1028 val = int_string (val_long, 16, 0, 0, use_c_format); break;
1030 val = int_string (val_long, 16, 0, 2, 1); break;
1032 val = int_string (val_long, 16, 0, 4, 1); break;
1034 val = int_string (val_long, 16, 0, 8, 1); break;
1036 val = int_string (val_long, 16, 0, 16, 1); break;
1039 val = int_string (val_long, 8, 0, 0, use_c_format); break;
1041 internal_error (__FILE__, __LINE__,
1042 _("failed internal consistency check"));
1044 fputs_filtered (val, stream);
1047 /* This used to be a macro, but I don't think it is called often enough
1048 to merit such treatment. */
1049 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
1050 arguments to a function, number in a value history, register number, etc.)
1051 where the value must not be larger than can fit in an int. */
1054 longest_to_int (LONGEST arg)
1056 /* Let the compiler do the work. */
1057 int rtnval = (int) arg;
1059 /* Check for overflows or underflows. */
1060 if (sizeof (LONGEST) > sizeof (int))
1064 error (_("Value out of range."));
1070 /* Print a floating point value of type TYPE (not always a
1071 TYPE_CODE_FLT), pointed to in GDB by VALADDR, on STREAM. */
1074 print_floating (const gdb_byte *valaddr, struct type *type,
1075 struct ui_file *stream)
1079 const struct floatformat *fmt = NULL;
1080 unsigned len = TYPE_LENGTH (type);
1081 enum float_kind kind;
1083 /* If it is a floating-point, check for obvious problems. */
1084 if (TYPE_CODE (type) == TYPE_CODE_FLT)
1085 fmt = floatformat_from_type (type);
1088 kind = floatformat_classify (fmt, valaddr);
1089 if (kind == float_nan)
1091 if (floatformat_is_negative (fmt, valaddr))
1092 fprintf_filtered (stream, "-");
1093 fprintf_filtered (stream, "nan(");
1094 fputs_filtered ("0x", stream);
1095 fputs_filtered (floatformat_mantissa (fmt, valaddr), stream);
1096 fprintf_filtered (stream, ")");
1099 else if (kind == float_infinite)
1101 if (floatformat_is_negative (fmt, valaddr))
1102 fputs_filtered ("-", stream);
1103 fputs_filtered ("inf", stream);
1108 /* NOTE: cagney/2002-01-15: The TYPE passed into print_floating()
1109 isn't necessarily a TYPE_CODE_FLT. Consequently, unpack_double
1110 needs to be used as that takes care of any necessary type
1111 conversions. Such conversions are of course direct to DOUBLEST
1112 and disregard any possible target floating point limitations.
1113 For instance, a u64 would be converted and displayed exactly on a
1114 host with 80 bit DOUBLEST but with loss of information on a host
1115 with 64 bit DOUBLEST. */
1117 doub = unpack_double (type, valaddr, &inv);
1120 fprintf_filtered (stream, "<invalid float value>");
1124 /* FIXME: kettenis/2001-01-20: The following code makes too much
1125 assumptions about the host and target floating point format. */
1127 /* NOTE: cagney/2002-02-03: Since the TYPE of what was passed in may
1128 not necessarily be a TYPE_CODE_FLT, the below ignores that and
1129 instead uses the type's length to determine the precision of the
1130 floating-point value being printed. */
1132 if (len < sizeof (double))
1133 fprintf_filtered (stream, "%.9g", (double) doub);
1134 else if (len == sizeof (double))
1135 fprintf_filtered (stream, "%.17g", (double) doub);
1137 #ifdef PRINTF_HAS_LONG_DOUBLE
1138 fprintf_filtered (stream, "%.35Lg", doub);
1140 /* This at least wins with values that are representable as
1142 fprintf_filtered (stream, "%.17g", (double) doub);
1147 print_decimal_floating (const gdb_byte *valaddr, struct type *type,
1148 struct ui_file *stream)
1150 enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
1151 char decstr[MAX_DECIMAL_STRING];
1152 unsigned len = TYPE_LENGTH (type);
1154 decimal_to_string (valaddr, len, byte_order, decstr);
1155 fputs_filtered (decstr, stream);
1160 print_binary_chars (struct ui_file *stream, const gdb_byte *valaddr,
1161 unsigned len, enum bfd_endian byte_order)
1164 #define BITS_IN_BYTES 8
1170 /* Declared "int" so it will be signed.
1171 This ensures that right shift will shift in zeros. */
1173 const int mask = 0x080;
1175 /* FIXME: We should be not printing leading zeroes in most cases. */
1177 if (byte_order == BFD_ENDIAN_BIG)
1183 /* Every byte has 8 binary characters; peel off
1184 and print from the MSB end. */
1186 for (i = 0; i < (BITS_IN_BYTES * sizeof (*p)); i++)
1188 if (*p & (mask >> i))
1193 fprintf_filtered (stream, "%1d", b);
1199 for (p = valaddr + len - 1;
1203 for (i = 0; i < (BITS_IN_BYTES * sizeof (*p)); i++)
1205 if (*p & (mask >> i))
1210 fprintf_filtered (stream, "%1d", b);
1216 /* VALADDR points to an integer of LEN bytes.
1217 Print it in octal on stream or format it in buf. */
1220 print_octal_chars (struct ui_file *stream, const gdb_byte *valaddr,
1221 unsigned len, enum bfd_endian byte_order)
1224 unsigned char octa1, octa2, octa3, carry;
1227 /* FIXME: We should be not printing leading zeroes in most cases. */
1230 /* Octal is 3 bits, which doesn't fit. Yuk. So we have to track
1231 * the extra bits, which cycle every three bytes:
1233 * Byte side: 0 1 2 3
1235 * bit number 123 456 78 | 9 012 345 6 | 78 901 234 | 567 890 12 |
1237 * Octal side: 0 1 carry 3 4 carry ...
1239 * Cycle number: 0 1 2
1241 * But of course we are printing from the high side, so we have to
1242 * figure out where in the cycle we are so that we end up with no
1243 * left over bits at the end.
1245 #define BITS_IN_OCTAL 3
1246 #define HIGH_ZERO 0340
1247 #define LOW_ZERO 0016
1248 #define CARRY_ZERO 0003
1249 #define HIGH_ONE 0200
1250 #define MID_ONE 0160
1251 #define LOW_ONE 0016
1252 #define CARRY_ONE 0001
1253 #define HIGH_TWO 0300
1254 #define MID_TWO 0070
1255 #define LOW_TWO 0007
1257 /* For 32 we start in cycle 2, with two bits and one bit carry;
1258 for 64 in cycle in cycle 1, with one bit and a two bit carry. */
1260 cycle = (len * BITS_IN_BYTES) % BITS_IN_OCTAL;
1263 fputs_filtered ("0", stream);
1264 if (byte_order == BFD_ENDIAN_BIG)
1273 /* No carry in, carry out two bits. */
1275 octa1 = (HIGH_ZERO & *p) >> 5;
1276 octa2 = (LOW_ZERO & *p) >> 2;
1277 carry = (CARRY_ZERO & *p);
1278 fprintf_filtered (stream, "%o", octa1);
1279 fprintf_filtered (stream, "%o", octa2);
1283 /* Carry in two bits, carry out one bit. */
1285 octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7);
1286 octa2 = (MID_ONE & *p) >> 4;
1287 octa3 = (LOW_ONE & *p) >> 1;
1288 carry = (CARRY_ONE & *p);
1289 fprintf_filtered (stream, "%o", octa1);
1290 fprintf_filtered (stream, "%o", octa2);
1291 fprintf_filtered (stream, "%o", octa3);
1295 /* Carry in one bit, no carry out. */
1297 octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6);
1298 octa2 = (MID_TWO & *p) >> 3;
1299 octa3 = (LOW_TWO & *p);
1301 fprintf_filtered (stream, "%o", octa1);
1302 fprintf_filtered (stream, "%o", octa2);
1303 fprintf_filtered (stream, "%o", octa3);
1307 error (_("Internal error in octal conversion;"));
1311 cycle = cycle % BITS_IN_OCTAL;
1316 for (p = valaddr + len - 1;
1323 /* Carry out, no carry in */
1325 octa1 = (HIGH_ZERO & *p) >> 5;
1326 octa2 = (LOW_ZERO & *p) >> 2;
1327 carry = (CARRY_ZERO & *p);
1328 fprintf_filtered (stream, "%o", octa1);
1329 fprintf_filtered (stream, "%o", octa2);
1333 /* Carry in, carry out */
1335 octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7);
1336 octa2 = (MID_ONE & *p) >> 4;
1337 octa3 = (LOW_ONE & *p) >> 1;
1338 carry = (CARRY_ONE & *p);
1339 fprintf_filtered (stream, "%o", octa1);
1340 fprintf_filtered (stream, "%o", octa2);
1341 fprintf_filtered (stream, "%o", octa3);
1345 /* Carry in, no carry out */
1347 octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6);
1348 octa2 = (MID_TWO & *p) >> 3;
1349 octa3 = (LOW_TWO & *p);
1351 fprintf_filtered (stream, "%o", octa1);
1352 fprintf_filtered (stream, "%o", octa2);
1353 fprintf_filtered (stream, "%o", octa3);
1357 error (_("Internal error in octal conversion;"));
1361 cycle = cycle % BITS_IN_OCTAL;
1367 /* VALADDR points to an integer of LEN bytes.
1368 Print it in decimal on stream or format it in buf. */
1371 print_decimal_chars (struct ui_file *stream, const gdb_byte *valaddr,
1372 unsigned len, enum bfd_endian byte_order)
1375 #define CARRY_OUT( x ) ((x) / TEN) /* extend char to int */
1376 #define CARRY_LEFT( x ) ((x) % TEN)
1377 #define SHIFT( x ) ((x) << 4)
1378 #define LOW_NIBBLE( x ) ( (x) & 0x00F)
1379 #define HIGH_NIBBLE( x ) (((x) & 0x0F0) >> 4)
1382 unsigned char *digits;
1385 int i, j, decimal_digits;
1389 /* Base-ten number is less than twice as many digits
1390 as the base 16 number, which is 2 digits per byte. */
1392 decimal_len = len * 2 * 2;
1393 digits = xmalloc (decimal_len);
1395 for (i = 0; i < decimal_len; i++)
1400 /* Ok, we have an unknown number of bytes of data to be printed in
1403 * Given a hex number (in nibbles) as XYZ, we start by taking X and
1404 * decemalizing it as "x1 x2" in two decimal nibbles. Then we multiply
1405 * the nibbles by 16, add Y and re-decimalize. Repeat with Z.
1407 * The trick is that "digits" holds a base-10 number, but sometimes
1408 * the individual digits are > 10.
1410 * Outer loop is per nibble (hex digit) of input, from MSD end to
1413 decimal_digits = 0; /* Number of decimal digits so far */
1414 p = (byte_order == BFD_ENDIAN_BIG) ? valaddr : valaddr + len - 1;
1416 while ((byte_order == BFD_ENDIAN_BIG) ? (p < valaddr + len) : (p >= valaddr))
1419 * Multiply current base-ten number by 16 in place.
1420 * Each digit was between 0 and 9, now is between
1423 for (j = 0; j < decimal_digits; j++)
1425 digits[j] = SHIFT (digits[j]);
1428 /* Take the next nibble off the input and add it to what
1429 * we've got in the LSB position. Bottom 'digit' is now
1430 * between 0 and 159.
1432 * "flip" is used to run this loop twice for each byte.
1436 /* Take top nibble. */
1438 digits[0] += HIGH_NIBBLE (*p);
1443 /* Take low nibble and bump our pointer "p". */
1445 digits[0] += LOW_NIBBLE (*p);
1446 if (byte_order == BFD_ENDIAN_BIG)
1453 /* Re-decimalize. We have to do this often enough
1454 * that we don't overflow, but once per nibble is
1455 * overkill. Easier this way, though. Note that the
1456 * carry is often larger than 10 (e.g. max initial
1457 * carry out of lowest nibble is 15, could bubble all
1458 * the way up greater than 10). So we have to do
1459 * the carrying beyond the last current digit.
1462 for (j = 0; j < decimal_len - 1; j++)
1466 /* "/" won't handle an unsigned char with
1467 * a value that if signed would be negative.
1468 * So extend to longword int via "dummy".
1471 carry = CARRY_OUT (dummy);
1472 digits[j] = CARRY_LEFT (dummy);
1474 if (j >= decimal_digits && carry == 0)
1477 * All higher digits are 0 and we
1478 * no longer have a carry.
1480 * Note: "j" is 0-based, "decimal_digits" is
1483 decimal_digits = j + 1;
1489 /* Ok, now "digits" is the decimal representation, with
1490 the "decimal_digits" actual digits. Print! */
1492 for (i = decimal_digits - 1; i >= 0; i--)
1494 fprintf_filtered (stream, "%1d", digits[i]);
1499 /* VALADDR points to an integer of LEN bytes. Print it in hex on stream. */
1502 print_hex_chars (struct ui_file *stream, const gdb_byte *valaddr,
1503 unsigned len, enum bfd_endian byte_order)
1507 /* FIXME: We should be not printing leading zeroes in most cases. */
1509 fputs_filtered ("0x", stream);
1510 if (byte_order == BFD_ENDIAN_BIG)
1516 fprintf_filtered (stream, "%02x", *p);
1521 for (p = valaddr + len - 1;
1525 fprintf_filtered (stream, "%02x", *p);
1530 /* VALADDR points to a char integer of LEN bytes.
1531 Print it out in appropriate language form on stream.
1532 Omit any leading zero chars. */
1535 print_char_chars (struct ui_file *stream, struct type *type,
1536 const gdb_byte *valaddr,
1537 unsigned len, enum bfd_endian byte_order)
1541 if (byte_order == BFD_ENDIAN_BIG)
1544 while (p < valaddr + len - 1 && *p == 0)
1547 while (p < valaddr + len)
1549 LA_EMIT_CHAR (*p, type, stream, '\'');
1555 p = valaddr + len - 1;
1556 while (p > valaddr && *p == 0)
1559 while (p >= valaddr)
1561 LA_EMIT_CHAR (*p, type, stream, '\'');
1567 /* Print function pointer with inferior address ADDRESS onto stdio
1571 print_function_pointer_address (const struct value_print_options *options,
1572 struct gdbarch *gdbarch,
1574 struct ui_file *stream)
1577 = gdbarch_convert_from_func_ptr_addr (gdbarch, address,
1580 /* If the function pointer is represented by a description, print
1581 the address of the description. */
1582 if (options->addressprint && func_addr != address)
1584 fputs_filtered ("@", stream);
1585 fputs_filtered (paddress (gdbarch, address), stream);
1586 fputs_filtered (": ", stream);
1588 print_address_demangle (options, gdbarch, func_addr, stream, demangle);
1592 /* Print on STREAM using the given OPTIONS the index for the element
1593 at INDEX of an array whose index type is INDEX_TYPE. */
1596 maybe_print_array_index (struct type *index_type, LONGEST index,
1597 struct ui_file *stream,
1598 const struct value_print_options *options)
1600 struct value *index_value;
1602 if (!options->print_array_indexes)
1605 index_value = value_from_longest (index_type, index);
1607 LA_PRINT_ARRAY_INDEX (index_value, stream, options);
1610 /* Called by various <lang>_val_print routines to print elements of an
1611 array in the form "<elem1>, <elem2>, <elem3>, ...".
1613 (FIXME?) Assumes array element separator is a comma, which is correct
1614 for all languages currently handled.
1615 (FIXME?) Some languages have a notation for repeated array elements,
1616 perhaps we should try to use that notation when appropriate. */
1619 val_print_array_elements (struct type *type,
1620 const gdb_byte *valaddr, int embedded_offset,
1621 CORE_ADDR address, struct ui_file *stream,
1623 const struct value *val,
1624 const struct value_print_options *options,
1627 unsigned int things_printed = 0;
1629 struct type *elttype, *index_type;
1631 /* Position of the array element we are examining to see
1632 whether it is repeated. */
1634 /* Number of repetitions we have detected so far. */
1636 LONGEST low_bound, high_bound;
1638 elttype = TYPE_TARGET_TYPE (type);
1639 eltlen = TYPE_LENGTH (check_typedef (elttype));
1640 index_type = TYPE_INDEX_TYPE (type);
1642 if (get_array_bounds (type, &low_bound, &high_bound))
1644 /* The array length should normally be HIGH_BOUND - LOW_BOUND + 1.
1645 But we have to be a little extra careful, because some languages
1646 such as Ada allow LOW_BOUND to be greater than HIGH_BOUND for
1647 empty arrays. In that situation, the array length is just zero,
1649 if (low_bound > high_bound)
1652 len = high_bound - low_bound + 1;
1656 warning (_("unable to get bounds of array, assuming null array"));
1661 annotate_array_section_begin (i, elttype);
1663 for (; i < len && things_printed < options->print_max; i++)
1667 if (options->prettyformat_arrays)
1669 fprintf_filtered (stream, ",\n");
1670 print_spaces_filtered (2 + 2 * recurse, stream);
1674 fprintf_filtered (stream, ", ");
1677 wrap_here (n_spaces (2 + 2 * recurse));
1678 maybe_print_array_index (index_type, i + low_bound,
1683 /* Only check for reps if repeat_count_threshold is not set to
1684 UINT_MAX (unlimited). */
1685 if (options->repeat_count_threshold < UINT_MAX)
1688 && value_contents_eq (val,
1689 embedded_offset + i * eltlen,
1700 if (reps > options->repeat_count_threshold)
1702 val_print (elttype, valaddr, embedded_offset + i * eltlen,
1703 address, stream, recurse + 1, val, options,
1705 annotate_elt_rep (reps);
1706 fprintf_filtered (stream, " <repeats %u times>", reps);
1707 annotate_elt_rep_end ();
1710 things_printed += options->repeat_count_threshold;
1714 val_print (elttype, valaddr, embedded_offset + i * eltlen,
1716 stream, recurse + 1, val, options, current_language);
1721 annotate_array_section_end ();
1724 fprintf_filtered (stream, "...");
1728 /* Read LEN bytes of target memory at address MEMADDR, placing the
1729 results in GDB's memory at MYADDR. Returns a count of the bytes
1730 actually read, and optionally a target_xfer_status value in the
1731 location pointed to by ERRPTR if ERRPTR is non-null. */
1733 /* FIXME: cagney/1999-10-14: Only used by val_print_string. Can this
1734 function be eliminated. */
1737 partial_memory_read (CORE_ADDR memaddr, gdb_byte *myaddr,
1738 int len, int *errptr)
1740 int nread; /* Number of bytes actually read. */
1741 int errcode; /* Error from last read. */
1743 /* First try a complete read. */
1744 errcode = target_read_memory (memaddr, myaddr, len);
1752 /* Loop, reading one byte at a time until we get as much as we can. */
1753 for (errcode = 0, nread = 0; len > 0 && errcode == 0; nread++, len--)
1755 errcode = target_read_memory (memaddr++, myaddr++, 1);
1757 /* If an error, the last read was unsuccessful, so adjust count. */
1770 /* Read a string from the inferior, at ADDR, with LEN characters of WIDTH bytes
1771 each. Fetch at most FETCHLIMIT characters. BUFFER will be set to a newly
1772 allocated buffer containing the string, which the caller is responsible to
1773 free, and BYTES_READ will be set to the number of bytes read. Returns 0 on
1774 success, or a target_xfer_status on failure.
1776 If LEN > 0, reads the lesser of LEN or FETCHLIMIT characters
1777 (including eventual NULs in the middle or end of the string).
1779 If LEN is -1, stops at the first null character (not necessarily
1780 the first null byte) up to a maximum of FETCHLIMIT characters. Set
1781 FETCHLIMIT to UINT_MAX to read as many characters as possible from
1784 Unless an exception is thrown, BUFFER will always be allocated, even on
1785 failure. In this case, some characters might have been read before the
1786 failure happened. Check BYTES_READ to recognize this situation.
1788 Note: There was a FIXME asking to make this code use target_read_string,
1789 but this function is more general (can read past null characters, up to
1790 given LEN). Besides, it is used much more often than target_read_string
1791 so it is more tested. Perhaps callers of target_read_string should use
1792 this function instead? */
1795 read_string (CORE_ADDR addr, int len, int width, unsigned int fetchlimit,
1796 enum bfd_endian byte_order, gdb_byte **buffer, int *bytes_read)
1798 int errcode; /* Errno returned from bad reads. */
1799 unsigned int nfetch; /* Chars to fetch / chars fetched. */
1800 gdb_byte *bufptr; /* Pointer to next available byte in
1802 struct cleanup *old_chain = NULL; /* Top of the old cleanup chain. */
1804 /* Loop until we either have all the characters, or we encounter
1805 some error, such as bumping into the end of the address space. */
1809 old_chain = make_cleanup (free_current_contents, buffer);
1813 /* We want fetchlimit chars, so we might as well read them all in
1815 unsigned int fetchlen = min (len, fetchlimit);
1817 *buffer = (gdb_byte *) xmalloc (fetchlen * width);
1820 nfetch = partial_memory_read (addr, bufptr, fetchlen * width, &errcode)
1822 addr += nfetch * width;
1823 bufptr += nfetch * width;
1827 unsigned long bufsize = 0;
1828 unsigned int chunksize; /* Size of each fetch, in chars. */
1829 int found_nul; /* Non-zero if we found the nul char. */
1830 gdb_byte *limit; /* First location past end of fetch buffer. */
1833 /* We are looking for a NUL terminator to end the fetching, so we
1834 might as well read in blocks that are large enough to be efficient,
1835 but not so large as to be slow if fetchlimit happens to be large.
1836 So we choose the minimum of 8 and fetchlimit. We used to use 200
1837 instead of 8 but 200 is way too big for remote debugging over a
1839 chunksize = min (8, fetchlimit);
1844 nfetch = min (chunksize, fetchlimit - bufsize);
1846 if (*buffer == NULL)
1847 *buffer = (gdb_byte *) xmalloc (nfetch * width);
1849 *buffer = (gdb_byte *) xrealloc (*buffer,
1850 (nfetch + bufsize) * width);
1852 bufptr = *buffer + bufsize * width;
1855 /* Read as much as we can. */
1856 nfetch = partial_memory_read (addr, bufptr, nfetch * width, &errcode)
1859 /* Scan this chunk for the null character that terminates the string
1860 to print. If found, we don't need to fetch any more. Note
1861 that bufptr is explicitly left pointing at the next character
1862 after the null character, or at the next character after the end
1865 limit = bufptr + nfetch * width;
1866 while (bufptr < limit)
1870 c = extract_unsigned_integer (bufptr, width, byte_order);
1875 /* We don't care about any error which happened after
1876 the NUL terminator. */
1883 while (errcode == 0 /* no error */
1884 && bufptr - *buffer < fetchlimit * width /* no overrun */
1885 && !found_nul); /* haven't found NUL yet */
1888 { /* Length of string is really 0! */
1889 /* We always allocate *buffer. */
1890 *buffer = bufptr = xmalloc (1);
1894 /* bufptr and addr now point immediately beyond the last byte which we
1895 consider part of the string (including a '\0' which ends the string). */
1896 *bytes_read = bufptr - *buffer;
1900 discard_cleanups (old_chain);
1905 /* Return true if print_wchar can display W without resorting to a
1906 numeric escape, false otherwise. */
1909 wchar_printable (gdb_wchar_t w)
1911 return (gdb_iswprint (w)
1912 || w == LCST ('\a') || w == LCST ('\b')
1913 || w == LCST ('\f') || w == LCST ('\n')
1914 || w == LCST ('\r') || w == LCST ('\t')
1915 || w == LCST ('\v'));
1918 /* A helper function that converts the contents of STRING to wide
1919 characters and then appends them to OUTPUT. */
1922 append_string_as_wide (const char *string,
1923 struct obstack *output)
1925 for (; *string; ++string)
1927 gdb_wchar_t w = gdb_btowc (*string);
1928 obstack_grow (output, &w, sizeof (gdb_wchar_t));
1932 /* Print a wide character W to OUTPUT. ORIG is a pointer to the
1933 original (target) bytes representing the character, ORIG_LEN is the
1934 number of valid bytes. WIDTH is the number of bytes in a base
1935 characters of the type. OUTPUT is an obstack to which wide
1936 characters are emitted. QUOTER is a (narrow) character indicating
1937 the style of quotes surrounding the character to be printed.
1938 NEED_ESCAPE is an in/out flag which is used to track numeric
1939 escapes across calls. */
1942 print_wchar (gdb_wint_t w, const gdb_byte *orig,
1943 int orig_len, int width,
1944 enum bfd_endian byte_order,
1945 struct obstack *output,
1946 int quoter, int *need_escapep)
1948 int need_escape = *need_escapep;
1952 /* iswprint implementation on Windows returns 1 for tab character.
1953 In order to avoid different printout on this host, we explicitly
1954 use wchar_printable function. */
1958 obstack_grow_wstr (output, LCST ("\\a"));
1961 obstack_grow_wstr (output, LCST ("\\b"));
1964 obstack_grow_wstr (output, LCST ("\\f"));
1967 obstack_grow_wstr (output, LCST ("\\n"));
1970 obstack_grow_wstr (output, LCST ("\\r"));
1973 obstack_grow_wstr (output, LCST ("\\t"));
1976 obstack_grow_wstr (output, LCST ("\\v"));
1980 if (wchar_printable (w) && (!need_escape || (!gdb_iswdigit (w)
1982 && w != LCST ('9'))))
1984 gdb_wchar_t wchar = w;
1986 if (w == gdb_btowc (quoter) || w == LCST ('\\'))
1987 obstack_grow_wstr (output, LCST ("\\"));
1988 obstack_grow (output, &wchar, sizeof (gdb_wchar_t));
1994 for (i = 0; i + width <= orig_len; i += width)
1999 value = extract_unsigned_integer (&orig[i], width,
2001 /* If the value fits in 3 octal digits, print it that
2002 way. Otherwise, print it as a hex escape. */
2004 xsnprintf (octal, sizeof (octal), "\\%.3o",
2005 (int) (value & 0777));
2007 xsnprintf (octal, sizeof (octal), "\\x%lx", (long) value);
2008 append_string_as_wide (octal, output);
2010 /* If we somehow have extra bytes, print them now. */
2011 while (i < orig_len)
2015 xsnprintf (octal, sizeof (octal), "\\%.3o", orig[i] & 0xff);
2016 append_string_as_wide (octal, output);
2027 /* Print the character C on STREAM as part of the contents of a
2028 literal string whose delimiter is QUOTER. ENCODING names the
2032 generic_emit_char (int c, struct type *type, struct ui_file *stream,
2033 int quoter, const char *encoding)
2035 enum bfd_endian byte_order
2036 = gdbarch_byte_order (get_type_arch (type));
2037 struct obstack wchar_buf, output;
2038 struct cleanup *cleanups;
2040 struct wchar_iterator *iter;
2041 int need_escape = 0;
2043 buf = alloca (TYPE_LENGTH (type));
2044 pack_long (buf, type, c);
2046 iter = make_wchar_iterator (buf, TYPE_LENGTH (type),
2047 encoding, TYPE_LENGTH (type));
2048 cleanups = make_cleanup_wchar_iterator (iter);
2050 /* This holds the printable form of the wchar_t data. */
2051 obstack_init (&wchar_buf);
2052 make_cleanup_obstack_free (&wchar_buf);
2058 const gdb_byte *buf;
2060 int print_escape = 1;
2061 enum wchar_iterate_result result;
2063 num_chars = wchar_iterate (iter, &result, &chars, &buf, &buflen);
2068 /* If all characters are printable, print them. Otherwise,
2069 we're going to have to print an escape sequence. We
2070 check all characters because we want to print the target
2071 bytes in the escape sequence, and we don't know character
2072 boundaries there. */
2076 for (i = 0; i < num_chars; ++i)
2077 if (!wchar_printable (chars[i]))
2085 for (i = 0; i < num_chars; ++i)
2086 print_wchar (chars[i], buf, buflen,
2087 TYPE_LENGTH (type), byte_order,
2088 &wchar_buf, quoter, &need_escape);
2092 /* This handles the NUM_CHARS == 0 case as well. */
2094 print_wchar (gdb_WEOF, buf, buflen, TYPE_LENGTH (type),
2095 byte_order, &wchar_buf, quoter, &need_escape);
2098 /* The output in the host encoding. */
2099 obstack_init (&output);
2100 make_cleanup_obstack_free (&output);
2102 convert_between_encodings (INTERMEDIATE_ENCODING, host_charset (),
2103 (gdb_byte *) obstack_base (&wchar_buf),
2104 obstack_object_size (&wchar_buf),
2105 sizeof (gdb_wchar_t), &output, translit_char);
2106 obstack_1grow (&output, '\0');
2108 fputs_filtered (obstack_base (&output), stream);
2110 do_cleanups (cleanups);
2113 /* Return the repeat count of the next character/byte in ITER,
2114 storing the result in VEC. */
2117 count_next_character (struct wchar_iterator *iter,
2118 VEC (converted_character_d) **vec)
2120 struct converted_character *current;
2122 if (VEC_empty (converted_character_d, *vec))
2124 struct converted_character tmp;
2128 = wchar_iterate (iter, &tmp.result, &chars, &tmp.buf, &tmp.buflen);
2129 if (tmp.num_chars > 0)
2131 gdb_assert (tmp.num_chars < MAX_WCHARS);
2132 memcpy (tmp.chars, chars, tmp.num_chars * sizeof (gdb_wchar_t));
2134 VEC_safe_push (converted_character_d, *vec, &tmp);
2137 current = VEC_last (converted_character_d, *vec);
2139 /* Count repeated characters or bytes. */
2140 current->repeat_count = 1;
2141 if (current->num_chars == -1)
2149 struct converted_character d;
2156 /* Get the next character. */
2158 = wchar_iterate (iter, &d.result, &chars, &d.buf, &d.buflen);
2160 /* If a character was successfully converted, save the character
2161 into the converted character. */
2162 if (d.num_chars > 0)
2164 gdb_assert (d.num_chars < MAX_WCHARS);
2165 memcpy (d.chars, chars, WCHAR_BUFLEN (d.num_chars));
2168 /* Determine if the current character is the same as this
2170 if (d.num_chars == current->num_chars && d.result == current->result)
2172 /* There are two cases to consider:
2174 1) Equality of converted character (num_chars > 0)
2175 2) Equality of non-converted character (num_chars == 0) */
2176 if ((current->num_chars > 0
2177 && memcmp (current->chars, d.chars,
2178 WCHAR_BUFLEN (current->num_chars)) == 0)
2179 || (current->num_chars == 0
2180 && current->buflen == d.buflen
2181 && memcmp (current->buf, d.buf, current->buflen) == 0))
2182 ++current->repeat_count;
2190 /* Push this next converted character onto the result vector. */
2191 repeat = current->repeat_count;
2192 VEC_safe_push (converted_character_d, *vec, &d);
2197 /* Print the characters in CHARS to the OBSTACK. QUOTE_CHAR is the quote
2198 character to use with string output. WIDTH is the size of the output
2199 character type. BYTE_ORDER is the the target byte order. OPTIONS
2200 is the user's print options. */
2203 print_converted_chars_to_obstack (struct obstack *obstack,
2204 VEC (converted_character_d) *chars,
2205 int quote_char, int width,
2206 enum bfd_endian byte_order,
2207 const struct value_print_options *options)
2210 struct converted_character *elem;
2211 enum {START, SINGLE, REPEAT, INCOMPLETE, FINISH} state, last;
2212 gdb_wchar_t wide_quote_char = gdb_btowc (quote_char);
2213 int need_escape = 0;
2215 /* Set the start state. */
2217 last = state = START;
2225 /* Nothing to do. */
2232 /* We are outputting a single character
2233 (< options->repeat_count_threshold). */
2237 /* We were outputting some other type of content, so we
2238 must output and a comma and a quote. */
2240 obstack_grow_wstr (obstack, LCST (", "));
2241 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
2243 /* Output the character. */
2244 for (j = 0; j < elem->repeat_count; ++j)
2246 if (elem->result == wchar_iterate_ok)
2247 print_wchar (elem->chars[0], elem->buf, elem->buflen, width,
2248 byte_order, obstack, quote_char, &need_escape);
2250 print_wchar (gdb_WEOF, elem->buf, elem->buflen, width,
2251 byte_order, obstack, quote_char, &need_escape);
2261 /* We are outputting a character with a repeat count
2262 greater than options->repeat_count_threshold. */
2266 /* We were outputting a single string. Terminate the
2268 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
2271 obstack_grow_wstr (obstack, LCST (", "));
2273 /* Output the character and repeat string. */
2274 obstack_grow_wstr (obstack, LCST ("'"));
2275 if (elem->result == wchar_iterate_ok)
2276 print_wchar (elem->chars[0], elem->buf, elem->buflen, width,
2277 byte_order, obstack, quote_char, &need_escape);
2279 print_wchar (gdb_WEOF, elem->buf, elem->buflen, width,
2280 byte_order, obstack, quote_char, &need_escape);
2281 obstack_grow_wstr (obstack, LCST ("'"));
2282 s = xstrprintf (_(" <repeats %u times>"), elem->repeat_count);
2283 for (j = 0; s[j]; ++j)
2285 gdb_wchar_t w = gdb_btowc (s[j]);
2286 obstack_grow (obstack, &w, sizeof (gdb_wchar_t));
2293 /* We are outputting an incomplete sequence. */
2296 /* If we were outputting a string of SINGLE characters,
2297 terminate the quote. */
2298 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
2301 obstack_grow_wstr (obstack, LCST (", "));
2303 /* Output the incomplete sequence string. */
2304 obstack_grow_wstr (obstack, LCST ("<incomplete sequence "));
2305 print_wchar (gdb_WEOF, elem->buf, elem->buflen, width, byte_order,
2306 obstack, 0, &need_escape);
2307 obstack_grow_wstr (obstack, LCST (">"));
2309 /* We do not attempt to outupt anything after this. */
2314 /* All done. If we were outputting a string of SINGLE
2315 characters, the string must be terminated. Otherwise,
2316 REPEAT and INCOMPLETE are always left properly terminated. */
2318 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
2323 /* Get the next element and state. */
2325 if (state != FINISH)
2327 elem = VEC_index (converted_character_d, chars, idx++);
2328 switch (elem->result)
2330 case wchar_iterate_ok:
2331 case wchar_iterate_invalid:
2332 if (elem->repeat_count > options->repeat_count_threshold)
2338 case wchar_iterate_incomplete:
2342 case wchar_iterate_eof:
2350 /* Print the character string STRING, printing at most LENGTH
2351 characters. LENGTH is -1 if the string is nul terminated. TYPE is
2352 the type of each character. OPTIONS holds the printing options;
2353 printing stops early if the number hits print_max; repeat counts
2354 are printed as appropriate. Print ellipses at the end if we had to
2355 stop before printing LENGTH characters, or if FORCE_ELLIPSES.
2356 QUOTE_CHAR is the character to print at each end of the string. If
2357 C_STYLE_TERMINATOR is true, and the last character is 0, then it is
2361 generic_printstr (struct ui_file *stream, struct type *type,
2362 const gdb_byte *string, unsigned int length,
2363 const char *encoding, int force_ellipses,
2364 int quote_char, int c_style_terminator,
2365 const struct value_print_options *options)
2367 enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
2369 int width = TYPE_LENGTH (type);
2370 struct obstack wchar_buf, output;
2371 struct cleanup *cleanup;
2372 struct wchar_iterator *iter;
2374 struct converted_character *last;
2375 VEC (converted_character_d) *converted_chars;
2379 unsigned long current_char = 1;
2381 for (i = 0; current_char; ++i)
2384 current_char = extract_unsigned_integer (string + i * width,
2390 /* If the string was not truncated due to `set print elements', and
2391 the last byte of it is a null, we don't print that, in
2392 traditional C style. */
2393 if (c_style_terminator
2396 && (extract_unsigned_integer (string + (length - 1) * width,
2397 width, byte_order) == 0))
2402 fputs_filtered ("\"\"", stream);
2406 /* Arrange to iterate over the characters, in wchar_t form. */
2407 iter = make_wchar_iterator (string, length * width, encoding, width);
2408 cleanup = make_cleanup_wchar_iterator (iter);
2409 converted_chars = NULL;
2410 make_cleanup (VEC_cleanup (converted_character_d), &converted_chars);
2412 /* Convert characters until the string is over or the maximum
2413 number of printed characters has been reached. */
2415 while (i < options->print_max)
2421 /* Grab the next character and repeat count. */
2422 r = count_next_character (iter, &converted_chars);
2424 /* If less than zero, the end of the input string was reached. */
2428 /* Otherwise, add the count to the total print count and get
2429 the next character. */
2433 /* Get the last element and determine if the entire string was
2435 last = VEC_last (converted_character_d, converted_chars);
2436 finished = (last->result == wchar_iterate_eof);
2438 /* Ensure that CONVERTED_CHARS is terminated. */
2439 last->result = wchar_iterate_eof;
2441 /* WCHAR_BUF is the obstack we use to represent the string in
2443 obstack_init (&wchar_buf);
2444 make_cleanup_obstack_free (&wchar_buf);
2446 /* Print the output string to the obstack. */
2447 print_converted_chars_to_obstack (&wchar_buf, converted_chars, quote_char,
2448 width, byte_order, options);
2450 if (force_ellipses || !finished)
2451 obstack_grow_wstr (&wchar_buf, LCST ("..."));
2453 /* OUTPUT is where we collect `char's for printing. */
2454 obstack_init (&output);
2455 make_cleanup_obstack_free (&output);
2457 convert_between_encodings (INTERMEDIATE_ENCODING, host_charset (),
2458 (gdb_byte *) obstack_base (&wchar_buf),
2459 obstack_object_size (&wchar_buf),
2460 sizeof (gdb_wchar_t), &output, translit_char);
2461 obstack_1grow (&output, '\0');
2463 fputs_filtered (obstack_base (&output), stream);
2465 do_cleanups (cleanup);
2468 /* Print a string from the inferior, starting at ADDR and printing up to LEN
2469 characters, of WIDTH bytes a piece, to STREAM. If LEN is -1, printing
2470 stops at the first null byte, otherwise printing proceeds (including null
2471 bytes) until either print_max or LEN characters have been printed,
2472 whichever is smaller. ENCODING is the name of the string's
2473 encoding. It can be NULL, in which case the target encoding is
2477 val_print_string (struct type *elttype, const char *encoding,
2478 CORE_ADDR addr, int len,
2479 struct ui_file *stream,
2480 const struct value_print_options *options)
2482 int force_ellipsis = 0; /* Force ellipsis to be printed if nonzero. */
2483 int errcode; /* Errno returned from bad reads. */
2484 int found_nul; /* Non-zero if we found the nul char. */
2485 unsigned int fetchlimit; /* Maximum number of chars to print. */
2487 gdb_byte *buffer = NULL; /* Dynamically growable fetch buffer. */
2488 struct cleanup *old_chain = NULL; /* Top of the old cleanup chain. */
2489 struct gdbarch *gdbarch = get_type_arch (elttype);
2490 enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
2491 int width = TYPE_LENGTH (elttype);
2493 /* First we need to figure out the limit on the number of characters we are
2494 going to attempt to fetch and print. This is actually pretty simple. If
2495 LEN >= zero, then the limit is the minimum of LEN and print_max. If
2496 LEN is -1, then the limit is print_max. This is true regardless of
2497 whether print_max is zero, UINT_MAX (unlimited), or something in between,
2498 because finding the null byte (or available memory) is what actually
2499 limits the fetch. */
2501 fetchlimit = (len == -1 ? options->print_max : min (len,
2502 options->print_max));
2504 errcode = read_string (addr, len, width, fetchlimit, byte_order,
2505 &buffer, &bytes_read);
2506 old_chain = make_cleanup (xfree, buffer);
2510 /* We now have either successfully filled the buffer to fetchlimit,
2511 or terminated early due to an error or finding a null char when
2514 /* Determine found_nul by looking at the last character read. */
2516 if (bytes_read >= width)
2517 found_nul = extract_unsigned_integer (buffer + bytes_read - width, width,
2519 if (len == -1 && !found_nul)
2523 /* We didn't find a NUL terminator we were looking for. Attempt
2524 to peek at the next character. If not successful, or it is not
2525 a null byte, then force ellipsis to be printed. */
2527 peekbuf = (gdb_byte *) alloca (width);
2529 if (target_read_memory (addr, peekbuf, width) == 0
2530 && extract_unsigned_integer (peekbuf, width, byte_order) != 0)
2533 else if ((len >= 0 && errcode != 0) || (len > bytes_read / width))
2535 /* Getting an error when we have a requested length, or fetching less
2536 than the number of characters actually requested, always make us
2541 /* If we get an error before fetching anything, don't print a string.
2542 But if we fetch something and then get an error, print the string
2543 and then the error message. */
2544 if (errcode == 0 || bytes_read > 0)
2546 LA_PRINT_STRING (stream, elttype, buffer, bytes_read / width,
2547 encoding, force_ellipsis, options);
2554 str = memory_error_message (errcode, gdbarch, addr);
2555 make_cleanup (xfree, str);
2557 fprintf_filtered (stream, "<error: ");
2558 fputs_filtered (str, stream);
2559 fprintf_filtered (stream, ">");
2563 do_cleanups (old_chain);
2565 return (bytes_read / width);
2569 /* The 'set input-radix' command writes to this auxiliary variable.
2570 If the requested radix is valid, INPUT_RADIX is updated; otherwise,
2571 it is left unchanged. */
2573 static unsigned input_radix_1 = 10;
2575 /* Validate an input or output radix setting, and make sure the user
2576 knows what they really did here. Radix setting is confusing, e.g.
2577 setting the input radix to "10" never changes it! */
2580 set_input_radix (char *args, int from_tty, struct cmd_list_element *c)
2582 set_input_radix_1 (from_tty, input_radix_1);
2586 set_input_radix_1 (int from_tty, unsigned radix)
2588 /* We don't currently disallow any input radix except 0 or 1, which don't
2589 make any mathematical sense. In theory, we can deal with any input
2590 radix greater than 1, even if we don't have unique digits for every
2591 value from 0 to radix-1, but in practice we lose on large radix values.
2592 We should either fix the lossage or restrict the radix range more.
2597 input_radix_1 = input_radix;
2598 error (_("Nonsense input radix ``decimal %u''; input radix unchanged."),
2601 input_radix_1 = input_radix = radix;
2604 printf_filtered (_("Input radix now set to "
2605 "decimal %u, hex %x, octal %o.\n"),
2606 radix, radix, radix);
2610 /* The 'set output-radix' command writes to this auxiliary variable.
2611 If the requested radix is valid, OUTPUT_RADIX is updated,
2612 otherwise, it is left unchanged. */
2614 static unsigned output_radix_1 = 10;
2617 set_output_radix (char *args, int from_tty, struct cmd_list_element *c)
2619 set_output_radix_1 (from_tty, output_radix_1);
2623 set_output_radix_1 (int from_tty, unsigned radix)
2625 /* Validate the radix and disallow ones that we aren't prepared to
2626 handle correctly, leaving the radix unchanged. */
2630 user_print_options.output_format = 'x'; /* hex */
2633 user_print_options.output_format = 0; /* decimal */
2636 user_print_options.output_format = 'o'; /* octal */
2639 output_radix_1 = output_radix;
2640 error (_("Unsupported output radix ``decimal %u''; "
2641 "output radix unchanged."),
2644 output_radix_1 = output_radix = radix;
2647 printf_filtered (_("Output radix now set to "
2648 "decimal %u, hex %x, octal %o.\n"),
2649 radix, radix, radix);
2653 /* Set both the input and output radix at once. Try to set the output radix
2654 first, since it has the most restrictive range. An radix that is valid as
2655 an output radix is also valid as an input radix.
2657 It may be useful to have an unusual input radix. If the user wishes to
2658 set an input radix that is not valid as an output radix, he needs to use
2659 the 'set input-radix' command. */
2662 set_radix (char *arg, int from_tty)
2666 radix = (arg == NULL) ? 10 : parse_and_eval_long (arg);
2667 set_output_radix_1 (0, radix);
2668 set_input_radix_1 (0, radix);
2671 printf_filtered (_("Input and output radices now set to "
2672 "decimal %u, hex %x, octal %o.\n"),
2673 radix, radix, radix);
2677 /* Show both the input and output radices. */
2680 show_radix (char *arg, int from_tty)
2684 if (input_radix == output_radix)
2686 printf_filtered (_("Input and output radices set to "
2687 "decimal %u, hex %x, octal %o.\n"),
2688 input_radix, input_radix, input_radix);
2692 printf_filtered (_("Input radix set to decimal "
2693 "%u, hex %x, octal %o.\n"),
2694 input_radix, input_radix, input_radix);
2695 printf_filtered (_("Output radix set to decimal "
2696 "%u, hex %x, octal %o.\n"),
2697 output_radix, output_radix, output_radix);
2704 set_print (char *arg, int from_tty)
2707 "\"set print\" must be followed by the name of a print subcommand.\n");
2708 help_list (setprintlist, "set print ", all_commands, gdb_stdout);
2712 show_print (char *args, int from_tty)
2714 cmd_show_list (showprintlist, from_tty, "");
2718 set_print_raw (char *arg, int from_tty)
2721 "\"set print raw\" must be followed by the name of a \"print raw\" subcommand.\n");
2722 help_list (setprintrawlist, "set print raw ", all_commands, gdb_stdout);
2726 show_print_raw (char *args, int from_tty)
2728 cmd_show_list (showprintrawlist, from_tty, "");
2733 _initialize_valprint (void)
2735 add_prefix_cmd ("print", no_class, set_print,
2736 _("Generic command for setting how things print."),
2737 &setprintlist, "set print ", 0, &setlist);
2738 add_alias_cmd ("p", "print", no_class, 1, &setlist);
2739 /* Prefer set print to set prompt. */
2740 add_alias_cmd ("pr", "print", no_class, 1, &setlist);
2742 add_prefix_cmd ("print", no_class, show_print,
2743 _("Generic command for showing print settings."),
2744 &showprintlist, "show print ", 0, &showlist);
2745 add_alias_cmd ("p", "print", no_class, 1, &showlist);
2746 add_alias_cmd ("pr", "print", no_class, 1, &showlist);
2748 add_prefix_cmd ("raw", no_class, set_print_raw,
2750 Generic command for setting what things to print in \"raw\" mode."),
2751 &setprintrawlist, "set print raw ", 0, &setprintlist);
2752 add_prefix_cmd ("raw", no_class, show_print_raw,
2753 _("Generic command for showing \"print raw\" settings."),
2754 &showprintrawlist, "show print raw ", 0, &showprintlist);
2756 add_setshow_uinteger_cmd ("elements", no_class,
2757 &user_print_options.print_max, _("\
2758 Set limit on string chars or array elements to print."), _("\
2759 Show limit on string chars or array elements to print."), _("\
2760 \"set print elements unlimited\" causes there to be no limit."),
2763 &setprintlist, &showprintlist);
2765 add_setshow_boolean_cmd ("null-stop", no_class,
2766 &user_print_options.stop_print_at_null, _("\
2767 Set printing of char arrays to stop at first null char."), _("\
2768 Show printing of char arrays to stop at first null char."), NULL,
2770 show_stop_print_at_null,
2771 &setprintlist, &showprintlist);
2773 add_setshow_uinteger_cmd ("repeats", no_class,
2774 &user_print_options.repeat_count_threshold, _("\
2775 Set threshold for repeated print elements."), _("\
2776 Show threshold for repeated print elements."), _("\
2777 \"set print repeats unlimited\" causes all elements to be individually printed."),
2779 show_repeat_count_threshold,
2780 &setprintlist, &showprintlist);
2782 add_setshow_boolean_cmd ("pretty", class_support,
2783 &user_print_options.prettyformat_structs, _("\
2784 Set pretty formatting of structures."), _("\
2785 Show pretty formatting of structures."), NULL,
2787 show_prettyformat_structs,
2788 &setprintlist, &showprintlist);
2790 add_setshow_boolean_cmd ("union", class_support,
2791 &user_print_options.unionprint, _("\
2792 Set printing of unions interior to structures."), _("\
2793 Show printing of unions interior to structures."), NULL,
2796 &setprintlist, &showprintlist);
2798 add_setshow_boolean_cmd ("array", class_support,
2799 &user_print_options.prettyformat_arrays, _("\
2800 Set pretty formatting of arrays."), _("\
2801 Show pretty formatting of arrays."), NULL,
2803 show_prettyformat_arrays,
2804 &setprintlist, &showprintlist);
2806 add_setshow_boolean_cmd ("address", class_support,
2807 &user_print_options.addressprint, _("\
2808 Set printing of addresses."), _("\
2809 Show printing of addresses."), NULL,
2812 &setprintlist, &showprintlist);
2814 add_setshow_boolean_cmd ("symbol", class_support,
2815 &user_print_options.symbol_print, _("\
2816 Set printing of symbol names when printing pointers."), _("\
2817 Show printing of symbol names when printing pointers."),
2820 &setprintlist, &showprintlist);
2822 add_setshow_zuinteger_cmd ("input-radix", class_support, &input_radix_1,
2824 Set default input radix for entering numbers."), _("\
2825 Show default input radix for entering numbers."), NULL,
2828 &setlist, &showlist);
2830 add_setshow_zuinteger_cmd ("output-radix", class_support, &output_radix_1,
2832 Set default output radix for printing of values."), _("\
2833 Show default output radix for printing of values."), NULL,
2836 &setlist, &showlist);
2838 /* The "set radix" and "show radix" commands are special in that
2839 they are like normal set and show commands but allow two normally
2840 independent variables to be either set or shown with a single
2841 command. So the usual deprecated_add_set_cmd() and [deleted]
2842 add_show_from_set() commands aren't really appropriate. */
2843 /* FIXME: i18n: With the new add_setshow_integer command, that is no
2844 longer true - show can display anything. */
2845 add_cmd ("radix", class_support, set_radix, _("\
2846 Set default input and output number radices.\n\
2847 Use 'set input-radix' or 'set output-radix' to independently set each.\n\
2848 Without an argument, sets both radices back to the default value of 10."),
2850 add_cmd ("radix", class_support, show_radix, _("\
2851 Show the default input and output number radices.\n\
2852 Use 'show input-radix' or 'show output-radix' to independently show each."),
2855 add_setshow_boolean_cmd ("array-indexes", class_support,
2856 &user_print_options.print_array_indexes, _("\
2857 Set printing of array indexes."), _("\
2858 Show printing of array indexes"), NULL, NULL, show_print_array_indexes,
2859 &setprintlist, &showprintlist);