1 /* Print values for GDB, the GNU debugger.
3 Copyright (C) 1986-2015 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
30 #include "floatformat.h"
33 #include "extension.h"
35 #include "gdb_obstack.h"
39 /* Maximum number of wchars returned from wchar_iterate. */
42 /* A convenience macro to compute the size of a wchar_t buffer containing X
44 #define WCHAR_BUFLEN(X) ((X) * sizeof (gdb_wchar_t))
46 /* Character buffer size saved while iterating over wchars. */
47 #define WCHAR_BUFLEN_MAX WCHAR_BUFLEN (MAX_WCHARS)
49 /* A structure to encapsulate state information from iterated
50 character conversions. */
51 struct converted_character
53 /* The number of characters converted. */
56 /* The result of the conversion. See charset.h for more. */
57 enum wchar_iterate_result result;
59 /* The (saved) converted character(s). */
60 gdb_wchar_t chars[WCHAR_BUFLEN_MAX];
62 /* The first converted target byte. */
65 /* The number of bytes converted. */
68 /* How many times this character(s) is repeated. */
72 typedef struct converted_character converted_character_d;
73 DEF_VEC_O (converted_character_d);
75 /* Command lists for set/show print raw. */
76 struct cmd_list_element *setprintrawlist;
77 struct cmd_list_element *showprintrawlist;
79 /* Prototypes for local functions */
81 static int partial_memory_read (CORE_ADDR memaddr, gdb_byte *myaddr,
82 int len, int *errptr);
84 static void show_print (char *, int);
86 static void set_print (char *, int);
88 static void set_radix (char *, int);
90 static void show_radix (char *, int);
92 static void set_input_radix (char *, int, struct cmd_list_element *);
94 static void set_input_radix_1 (int, unsigned);
96 static void set_output_radix (char *, int, struct cmd_list_element *);
98 static void set_output_radix_1 (int, unsigned);
100 void _initialize_valprint (void);
102 #define PRINT_MAX_DEFAULT 200 /* Start print_max off at this value. */
104 struct value_print_options user_print_options =
106 Val_prettyformat_default, /* prettyformat */
107 0, /* prettyformat_arrays */
108 0, /* prettyformat_structs */
111 1, /* addressprint */
113 PRINT_MAX_DEFAULT, /* print_max */
114 10, /* repeat_count_threshold */
115 0, /* output_format */
117 0, /* stop_print_at_null */
118 0, /* print_array_indexes */
120 1, /* static_field_print */
121 1, /* pascal_static_field_print */
127 /* Initialize *OPTS to be a copy of the user print options. */
129 get_user_print_options (struct value_print_options *opts)
131 *opts = user_print_options;
134 /* Initialize *OPTS to be a copy of the user print options, but with
135 pretty-formatting disabled. */
137 get_no_prettyformat_print_options (struct value_print_options *opts)
139 *opts = user_print_options;
140 opts->prettyformat = Val_no_prettyformat;
143 /* Initialize *OPTS to be a copy of the user print options, but using
144 FORMAT as the formatting option. */
146 get_formatted_print_options (struct value_print_options *opts,
149 *opts = user_print_options;
150 opts->format = format;
154 show_print_max (struct ui_file *file, int from_tty,
155 struct cmd_list_element *c, const char *value)
157 fprintf_filtered (file,
158 _("Limit on string chars or array "
159 "elements to print is %s.\n"),
164 /* Default input and output radixes, and output format letter. */
166 unsigned input_radix = 10;
168 show_input_radix (struct ui_file *file, int from_tty,
169 struct cmd_list_element *c, const char *value)
171 fprintf_filtered (file,
172 _("Default input radix for entering numbers is %s.\n"),
176 unsigned output_radix = 10;
178 show_output_radix (struct ui_file *file, int from_tty,
179 struct cmd_list_element *c, const char *value)
181 fprintf_filtered (file,
182 _("Default output radix for printing of values is %s.\n"),
186 /* By default we print arrays without printing the index of each element in
187 the array. This behavior can be changed by setting PRINT_ARRAY_INDEXES. */
190 show_print_array_indexes (struct ui_file *file, int from_tty,
191 struct cmd_list_element *c, const char *value)
193 fprintf_filtered (file, _("Printing of array indexes is %s.\n"), value);
196 /* Print repeat counts if there are more than this many repetitions of an
197 element in an array. Referenced by the low level language dependent
201 show_repeat_count_threshold (struct ui_file *file, int from_tty,
202 struct cmd_list_element *c, const char *value)
204 fprintf_filtered (file, _("Threshold for repeated print elements is %s.\n"),
208 /* If nonzero, stops printing of char arrays at first null. */
211 show_stop_print_at_null (struct ui_file *file, int from_tty,
212 struct cmd_list_element *c, const char *value)
214 fprintf_filtered (file,
215 _("Printing of char arrays to stop "
216 "at first null char is %s.\n"),
220 /* Controls pretty printing of structures. */
223 show_prettyformat_structs (struct ui_file *file, int from_tty,
224 struct cmd_list_element *c, const char *value)
226 fprintf_filtered (file, _("Pretty formatting of structures is %s.\n"), value);
229 /* Controls pretty printing of arrays. */
232 show_prettyformat_arrays (struct ui_file *file, int from_tty,
233 struct cmd_list_element *c, const char *value)
235 fprintf_filtered (file, _("Pretty formatting of arrays is %s.\n"), value);
238 /* If nonzero, causes unions inside structures or other unions to be
242 show_unionprint (struct ui_file *file, int from_tty,
243 struct cmd_list_element *c, const char *value)
245 fprintf_filtered (file,
246 _("Printing of unions interior to structures is %s.\n"),
250 /* If nonzero, causes machine addresses to be printed in certain contexts. */
253 show_addressprint (struct ui_file *file, int from_tty,
254 struct cmd_list_element *c, const char *value)
256 fprintf_filtered (file, _("Printing of addresses is %s.\n"), value);
260 show_symbol_print (struct ui_file *file, int from_tty,
261 struct cmd_list_element *c, const char *value)
263 fprintf_filtered (file,
264 _("Printing of symbols when printing pointers is %s.\n"),
270 /* A helper function for val_print. When printing in "summary" mode,
271 we want to print scalar arguments, but not aggregate arguments.
272 This function distinguishes between the two. */
275 val_print_scalar_type_p (struct type *type)
277 type = check_typedef (type);
278 while (TYPE_CODE (type) == TYPE_CODE_REF)
280 type = TYPE_TARGET_TYPE (type);
281 type = check_typedef (type);
283 switch (TYPE_CODE (type))
285 case TYPE_CODE_ARRAY:
286 case TYPE_CODE_STRUCT:
287 case TYPE_CODE_UNION:
289 case TYPE_CODE_STRING:
296 /* See its definition in value.h. */
299 valprint_check_validity (struct ui_file *stream,
302 const struct value *val)
304 type = check_typedef (type);
306 if (TYPE_CODE (type) != TYPE_CODE_UNION
307 && TYPE_CODE (type) != TYPE_CODE_STRUCT
308 && TYPE_CODE (type) != TYPE_CODE_ARRAY)
310 if (value_bits_any_optimized_out (val,
311 TARGET_CHAR_BIT * embedded_offset,
312 TARGET_CHAR_BIT * TYPE_LENGTH (type)))
314 val_print_optimized_out (val, stream);
318 if (value_bits_synthetic_pointer (val, TARGET_CHAR_BIT * embedded_offset,
319 TARGET_CHAR_BIT * TYPE_LENGTH (type)))
321 fputs_filtered (_("<synthetic pointer>"), stream);
325 if (!value_bytes_available (val, embedded_offset, TYPE_LENGTH (type)))
327 val_print_unavailable (stream);
336 val_print_optimized_out (const struct value *val, struct ui_file *stream)
338 if (val != NULL && value_lval_const (val) == lval_register)
339 val_print_not_saved (stream);
341 fprintf_filtered (stream, _("<optimized out>"));
345 val_print_not_saved (struct ui_file *stream)
347 fprintf_filtered (stream, _("<not saved>"));
351 val_print_unavailable (struct ui_file *stream)
353 fprintf_filtered (stream, _("<unavailable>"));
357 val_print_invalid_address (struct ui_file *stream)
359 fprintf_filtered (stream, _("<invalid address>"));
362 /* Print a pointer based on the type of its target.
364 Arguments to this functions are roughly the same as those in
365 generic_val_print. A difference is that ADDRESS is the address to print,
366 with embedded_offset already added. ELTTYPE represents
367 the pointed type after check_typedef. */
370 print_unpacked_pointer (struct type *type, struct type *elttype,
371 CORE_ADDR address, struct ui_file *stream,
372 const struct value_print_options *options)
374 struct gdbarch *gdbarch = get_type_arch (type);
376 if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
378 /* Try to print what function it points to. */
379 print_function_pointer_address (options, gdbarch, address, stream);
383 if (options->symbol_print)
384 print_address_demangle (options, gdbarch, address, stream, demangle);
385 else if (options->addressprint)
386 fputs_filtered (paddress (gdbarch, address), stream);
389 /* generic_val_print helper for TYPE_CODE_ARRAY. */
392 generic_val_print_array (struct type *type, const gdb_byte *valaddr,
393 int embedded_offset, CORE_ADDR address,
394 struct ui_file *stream, int recurse,
395 const struct value *original_value,
396 const struct value_print_options *options)
398 struct type *unresolved_elttype = TYPE_TARGET_TYPE (type);
399 struct type *elttype = check_typedef (unresolved_elttype);
401 if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (unresolved_elttype) > 0)
403 LONGEST low_bound, high_bound;
405 if (!get_array_bounds (type, &low_bound, &high_bound))
406 error (_("Could not determine the array high bound"));
408 if (options->prettyformat_arrays)
410 print_spaces_filtered (2 + 2 * recurse, stream);
413 fprintf_filtered (stream, "{");
414 val_print_array_elements (type, valaddr, embedded_offset,
416 recurse, original_value, options, 0);
417 fprintf_filtered (stream, "}");
421 /* Array of unspecified length: treat like pointer to first elt. */
422 print_unpacked_pointer (type, elttype, address + embedded_offset, stream,
428 /* generic_val_print helper for TYPE_CODE_PTR. */
431 generic_val_print_ptr (struct type *type, const gdb_byte *valaddr,
432 int embedded_offset, struct ui_file *stream,
433 const struct value *original_value,
434 const struct value_print_options *options)
436 if (options->format && options->format != 's')
438 val_print_scalar_formatted (type, valaddr, embedded_offset,
439 original_value, options, 0, stream);
443 struct type *unresolved_elttype = TYPE_TARGET_TYPE(type);
444 struct type *elttype = check_typedef (unresolved_elttype);
445 CORE_ADDR addr = unpack_pointer (type, valaddr + embedded_offset);
447 print_unpacked_pointer (type, elttype, addr, stream, options);
452 /* generic_val_print helper for TYPE_CODE_MEMBERPTR. */
455 generic_val_print_memberptr (struct type *type, const gdb_byte *valaddr,
456 int embedded_offset, struct ui_file *stream,
457 const struct value *original_value,
458 const struct value_print_options *options)
460 val_print_scalar_formatted (type, valaddr, embedded_offset,
461 original_value, options, 0, stream);
464 /* generic_val_print helper for TYPE_CODE_REF. */
467 generic_val_print_ref (struct type *type, const gdb_byte *valaddr,
468 int embedded_offset, struct ui_file *stream, int recurse,
469 const struct value *original_value,
470 const struct value_print_options *options)
472 struct gdbarch *gdbarch = get_type_arch (type);
473 struct type *elttype = check_typedef (TYPE_TARGET_TYPE (type));
475 if (options->addressprint)
478 = extract_typed_address (valaddr + embedded_offset, type);
480 fprintf_filtered (stream, "@");
481 fputs_filtered (paddress (gdbarch, addr), stream);
482 if (options->deref_ref)
483 fputs_filtered (": ", stream);
485 /* De-reference the reference. */
486 if (options->deref_ref)
488 if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
490 struct value *deref_val;
492 deref_val = coerce_ref_if_computed (original_value);
493 if (deref_val != NULL)
495 /* More complicated computed references are not supported. */
496 gdb_assert (embedded_offset == 0);
499 deref_val = value_at (TYPE_TARGET_TYPE (type),
500 unpack_pointer (type,
502 + embedded_offset)));
504 common_val_print (deref_val, stream, recurse, options,
508 fputs_filtered ("???", stream);
512 /* A generic val_print that is suitable for use by language
513 implementations of the la_val_print method. This function can
514 handle most type codes, though not all, notably exception
515 TYPE_CODE_UNION and TYPE_CODE_STRUCT, which must be implemented by
518 Most arguments are as to val_print.
520 The additional DECORATIONS argument can be used to customize the
521 output in some small, language-specific ways. */
524 generic_val_print (struct type *type, const gdb_byte *valaddr,
525 int embedded_offset, CORE_ADDR address,
526 struct ui_file *stream, int recurse,
527 const struct value *original_value,
528 const struct value_print_options *options,
529 const struct generic_val_print_decorations *decorations)
531 struct gdbarch *gdbarch = get_type_arch (type);
532 unsigned int i = 0; /* Number of characters printed. */
534 struct type *unresolved_type = type;
537 type = check_typedef (type);
538 switch (TYPE_CODE (type))
540 case TYPE_CODE_ARRAY:
541 generic_val_print_array (type, valaddr, embedded_offset, address, stream,
542 recurse, original_value, options);
545 case TYPE_CODE_MEMBERPTR:
546 generic_val_print_memberptr (type, valaddr, embedded_offset, stream,
547 original_value, options);
551 generic_val_print_ptr (type, valaddr, embedded_offset, stream,
552 original_value, options);
556 generic_val_print_ref (type, valaddr, embedded_offset, stream, recurse,
557 original_value, options);
563 val_print_scalar_formatted (type, valaddr, embedded_offset,
564 original_value, options, 0, stream);
567 len = TYPE_NFIELDS (type);
568 val = unpack_long (type, valaddr + embedded_offset);
569 for (i = 0; i < len; i++)
572 if (val == TYPE_FIELD_ENUMVAL (type, i))
579 fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
581 else if (TYPE_FLAG_ENUM (type))
585 /* We have a "flag" enum, so we try to decompose it into
586 pieces as appropriate. A flag enum has disjoint
587 constants by definition. */
588 fputs_filtered ("(", stream);
589 for (i = 0; i < len; ++i)
593 if ((val & TYPE_FIELD_ENUMVAL (type, i)) != 0)
596 fputs_filtered (" | ", stream);
599 val &= ~TYPE_FIELD_ENUMVAL (type, i);
600 fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
604 if (first || val != 0)
607 fputs_filtered (" | ", stream);
608 fputs_filtered ("unknown: ", stream);
609 print_longest (stream, 'd', 0, val);
612 fputs_filtered (")", stream);
615 print_longest (stream, 'd', 0, val);
618 case TYPE_CODE_FLAGS:
620 val_print_scalar_formatted (type, valaddr, embedded_offset,
621 original_value, options, 0, stream);
623 val_print_type_code_flags (type, valaddr + embedded_offset,
628 case TYPE_CODE_METHOD:
631 val_print_scalar_formatted (type, valaddr, embedded_offset,
632 original_value, options, 0, stream);
635 /* FIXME, we should consider, at least for ANSI C language,
636 eliminating the distinction made between FUNCs and POINTERs
638 fprintf_filtered (stream, "{");
639 type_print (type, "", stream, -1);
640 fprintf_filtered (stream, "} ");
641 /* Try to print what function it points to, and its address. */
642 print_address_demangle (options, gdbarch, address, stream, demangle);
646 if (options->format || options->output_format)
648 struct value_print_options opts = *options;
649 opts.format = (options->format ? options->format
650 : options->output_format);
651 val_print_scalar_formatted (type, valaddr, embedded_offset,
652 original_value, &opts, 0, stream);
656 val = unpack_long (type, valaddr + embedded_offset);
658 fputs_filtered (decorations->false_name, stream);
660 fputs_filtered (decorations->true_name, stream);
662 print_longest (stream, 'd', 0, val);
666 case TYPE_CODE_RANGE:
667 /* FIXME: create_static_range_type does not set the unsigned bit in a
668 range type (I think it probably should copy it from the
669 target type), so we won't print values which are too large to
670 fit in a signed integer correctly. */
671 /* FIXME: Doesn't handle ranges of enums correctly. (Can't just
672 print with the target type, though, because the size of our
673 type and the target type might differ). */
678 if (options->format || options->output_format)
680 struct value_print_options opts = *options;
682 opts.format = (options->format ? options->format
683 : options->output_format);
684 val_print_scalar_formatted (type, valaddr, embedded_offset,
685 original_value, &opts, 0, stream);
688 val_print_type_code_int (type, valaddr + embedded_offset, stream);
692 if (options->format || options->output_format)
694 struct value_print_options opts = *options;
696 opts.format = (options->format ? options->format
697 : options->output_format);
698 val_print_scalar_formatted (type, valaddr, embedded_offset,
699 original_value, &opts, 0, stream);
703 val = unpack_long (type, valaddr + embedded_offset);
704 if (TYPE_UNSIGNED (type))
705 fprintf_filtered (stream, "%u", (unsigned int) val);
707 fprintf_filtered (stream, "%d", (int) val);
708 fputs_filtered (" ", stream);
709 LA_PRINT_CHAR (val, unresolved_type, stream);
716 val_print_scalar_formatted (type, valaddr, embedded_offset,
717 original_value, options, 0, stream);
721 print_floating (valaddr + embedded_offset, type, stream);
725 case TYPE_CODE_DECFLOAT:
727 val_print_scalar_formatted (type, valaddr, embedded_offset,
728 original_value, options, 0, stream);
730 print_decimal_floating (valaddr + embedded_offset,
735 fputs_filtered (decorations->void_name, stream);
738 case TYPE_CODE_ERROR:
739 fprintf_filtered (stream, "%s", TYPE_ERROR_NAME (type));
742 case TYPE_CODE_UNDEF:
743 /* This happens (without TYPE_FLAG_STUB set) on systems which
744 don't use dbx xrefs (NO_DBX_XREFS in gcc) if a file has a
745 "struct foo *bar" and no complete type for struct foo in that
747 fprintf_filtered (stream, _("<incomplete type>"));
750 case TYPE_CODE_COMPLEX:
751 fprintf_filtered (stream, "%s", decorations->complex_prefix);
753 val_print_scalar_formatted (TYPE_TARGET_TYPE (type),
754 valaddr, embedded_offset,
755 original_value, options, 0, stream);
757 print_floating (valaddr + embedded_offset,
758 TYPE_TARGET_TYPE (type),
760 fprintf_filtered (stream, "%s", decorations->complex_infix);
762 val_print_scalar_formatted (TYPE_TARGET_TYPE (type),
765 + TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
769 print_floating (valaddr + embedded_offset
770 + TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
771 TYPE_TARGET_TYPE (type),
773 fprintf_filtered (stream, "%s", decorations->complex_suffix);
776 case TYPE_CODE_UNION:
777 case TYPE_CODE_STRUCT:
778 case TYPE_CODE_METHODPTR:
780 error (_("Unhandled type code %d in symbol table."),
786 /* Print using the given LANGUAGE the data of type TYPE located at
787 VALADDR + EMBEDDED_OFFSET (within GDB), which came from the
788 inferior at address ADDRESS + EMBEDDED_OFFSET, onto stdio stream
789 STREAM according to OPTIONS. VAL is the whole object that came
790 from ADDRESS. VALADDR must point to the head of VAL's contents
793 The language printers will pass down an adjusted EMBEDDED_OFFSET to
794 further helper subroutines as subfields of TYPE are printed. In
795 such cases, VALADDR is passed down unadjusted, as well as VAL, so
796 that VAL can be queried for metadata about the contents data being
797 printed, using EMBEDDED_OFFSET as an offset into VAL's contents
798 buffer. For example: "has this field been optimized out", or "I'm
799 printing an object while inspecting a traceframe; has this
800 particular piece of data been collected?".
802 RECURSE indicates the amount of indentation to supply before
803 continuation lines; this amount is roughly twice the value of
807 val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset,
808 CORE_ADDR address, struct ui_file *stream, int recurse,
809 const struct value *val,
810 const struct value_print_options *options,
811 const struct language_defn *language)
814 struct value_print_options local_opts = *options;
815 struct type *real_type = check_typedef (type);
817 if (local_opts.prettyformat == Val_prettyformat_default)
818 local_opts.prettyformat = (local_opts.prettyformat_structs
819 ? Val_prettyformat : Val_no_prettyformat);
823 /* Ensure that the type is complete and not just a stub. If the type is
824 only a stub and we can't find and substitute its complete type, then
825 print appropriate string and return. */
827 if (TYPE_STUB (real_type))
829 fprintf_filtered (stream, _("<incomplete type>"));
834 if (!valprint_check_validity (stream, real_type, embedded_offset, val))
839 ret = apply_ext_lang_val_pretty_printer (type, valaddr, embedded_offset,
840 address, stream, recurse,
841 val, options, language);
846 /* Handle summary mode. If the value is a scalar, print it;
847 otherwise, print an ellipsis. */
848 if (options->summary && !val_print_scalar_type_p (type))
850 fprintf_filtered (stream, "...");
856 language->la_val_print (type, valaddr, embedded_offset, address,
857 stream, recurse, val,
860 CATCH (except, RETURN_MASK_ERROR)
862 fprintf_filtered (stream, _("<error reading variable>"));
867 /* Check whether the value VAL is printable. Return 1 if it is;
868 return 0 and print an appropriate error message to STREAM according to
869 OPTIONS if it is not. */
872 value_check_printable (struct value *val, struct ui_file *stream,
873 const struct value_print_options *options)
877 fprintf_filtered (stream, _("<address of value unknown>"));
881 if (value_entirely_optimized_out (val))
883 if (options->summary && !val_print_scalar_type_p (value_type (val)))
884 fprintf_filtered (stream, "...");
886 val_print_optimized_out (val, stream);
890 if (value_entirely_unavailable (val))
892 if (options->summary && !val_print_scalar_type_p (value_type (val)))
893 fprintf_filtered (stream, "...");
895 val_print_unavailable (stream);
899 if (TYPE_CODE (value_type (val)) == TYPE_CODE_INTERNAL_FUNCTION)
901 fprintf_filtered (stream, _("<internal function %s>"),
902 value_internal_function_name (val));
909 /* Print using the given LANGUAGE the value VAL onto stream STREAM according
912 This is a preferable interface to val_print, above, because it uses
913 GDB's value mechanism. */
916 common_val_print (struct value *val, struct ui_file *stream, int recurse,
917 const struct value_print_options *options,
918 const struct language_defn *language)
920 if (!value_check_printable (val, stream, options))
923 if (language->la_language == language_ada)
924 /* The value might have a dynamic type, which would cause trouble
925 below when trying to extract the value contents (since the value
926 size is determined from the type size which is unknown). So
927 get a fixed representation of our value. */
928 val = ada_to_fixed_value (val);
930 val_print (value_type (val), value_contents_for_printing (val),
931 value_embedded_offset (val), value_address (val),
933 val, options, language);
936 /* Print on stream STREAM the value VAL according to OPTIONS. The value
937 is printed using the current_language syntax. */
940 value_print (struct value *val, struct ui_file *stream,
941 const struct value_print_options *options)
943 if (!value_check_printable (val, stream, options))
949 = apply_ext_lang_val_pretty_printer (value_type (val),
950 value_contents_for_printing (val),
951 value_embedded_offset (val),
954 val, options, current_language);
960 LA_VALUE_PRINT (val, stream, options);
963 /* Called by various <lang>_val_print routines to print
964 TYPE_CODE_INT's. TYPE is the type. VALADDR is the address of the
965 value. STREAM is where to print the value. */
968 val_print_type_code_int (struct type *type, const gdb_byte *valaddr,
969 struct ui_file *stream)
971 enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
973 if (TYPE_LENGTH (type) > sizeof (LONGEST))
977 if (TYPE_UNSIGNED (type)
978 && extract_long_unsigned_integer (valaddr, TYPE_LENGTH (type),
981 print_longest (stream, 'u', 0, val);
985 /* Signed, or we couldn't turn an unsigned value into a
986 LONGEST. For signed values, one could assume two's
987 complement (a reasonable assumption, I think) and do
989 print_hex_chars (stream, (unsigned char *) valaddr,
990 TYPE_LENGTH (type), byte_order);
995 print_longest (stream, TYPE_UNSIGNED (type) ? 'u' : 'd', 0,
996 unpack_long (type, valaddr));
1001 val_print_type_code_flags (struct type *type, const gdb_byte *valaddr,
1002 struct ui_file *stream)
1004 ULONGEST val = unpack_long (type, valaddr);
1005 int bitpos, nfields = TYPE_NFIELDS (type);
1007 fputs_filtered ("[ ", stream);
1008 for (bitpos = 0; bitpos < nfields; bitpos++)
1010 if (TYPE_FIELD_BITPOS (type, bitpos) != -1
1011 && (val & ((ULONGEST)1 << bitpos)))
1013 if (TYPE_FIELD_NAME (type, bitpos))
1014 fprintf_filtered (stream, "%s ", TYPE_FIELD_NAME (type, bitpos));
1016 fprintf_filtered (stream, "#%d ", bitpos);
1019 fputs_filtered ("]", stream);
1022 /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR,
1023 according to OPTIONS and SIZE on STREAM. Format i is not supported
1026 This is how the elements of an array or structure are printed
1030 val_print_scalar_formatted (struct type *type,
1031 const gdb_byte *valaddr, int embedded_offset,
1032 const struct value *val,
1033 const struct value_print_options *options,
1035 struct ui_file *stream)
1037 gdb_assert (val != NULL);
1038 gdb_assert (valaddr == value_contents_for_printing_const (val));
1040 /* If we get here with a string format, try again without it. Go
1041 all the way back to the language printers, which may call us
1043 if (options->format == 's')
1045 struct value_print_options opts = *options;
1048 val_print (type, valaddr, embedded_offset, 0, stream, 0, val, &opts,
1053 /* A scalar object that does not have all bits available can't be
1054 printed, because all bits contribute to its representation. */
1055 if (value_bits_any_optimized_out (val,
1056 TARGET_CHAR_BIT * embedded_offset,
1057 TARGET_CHAR_BIT * TYPE_LENGTH (type)))
1058 val_print_optimized_out (val, stream);
1059 else if (!value_bytes_available (val, embedded_offset, TYPE_LENGTH (type)))
1060 val_print_unavailable (stream);
1062 print_scalar_formatted (valaddr + embedded_offset, type,
1063 options, size, stream);
1066 /* Print a number according to FORMAT which is one of d,u,x,o,b,h,w,g.
1067 The raison d'etre of this function is to consolidate printing of
1068 LONG_LONG's into this one function. The format chars b,h,w,g are
1069 from print_scalar_formatted(). Numbers are printed using C
1072 USE_C_FORMAT means to use C format in all cases. Without it,
1073 'o' and 'x' format do not include the standard C radix prefix
1076 Hilfinger/2004-09-09: USE_C_FORMAT was originally called USE_LOCAL
1077 and was intended to request formating according to the current
1078 language and would be used for most integers that GDB prints. The
1079 exceptional cases were things like protocols where the format of
1080 the integer is a protocol thing, not a user-visible thing). The
1081 parameter remains to preserve the information of what things might
1082 be printed with language-specific format, should we ever resurrect
1086 print_longest (struct ui_file *stream, int format, int use_c_format,
1094 val = int_string (val_long, 10, 1, 0, 1); break;
1096 val = int_string (val_long, 10, 0, 0, 1); break;
1098 val = int_string (val_long, 16, 0, 0, use_c_format); break;
1100 val = int_string (val_long, 16, 0, 2, 1); break;
1102 val = int_string (val_long, 16, 0, 4, 1); break;
1104 val = int_string (val_long, 16, 0, 8, 1); break;
1106 val = int_string (val_long, 16, 0, 16, 1); break;
1109 val = int_string (val_long, 8, 0, 0, use_c_format); break;
1111 internal_error (__FILE__, __LINE__,
1112 _("failed internal consistency check"));
1114 fputs_filtered (val, stream);
1117 /* This used to be a macro, but I don't think it is called often enough
1118 to merit such treatment. */
1119 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
1120 arguments to a function, number in a value history, register number, etc.)
1121 where the value must not be larger than can fit in an int. */
1124 longest_to_int (LONGEST arg)
1126 /* Let the compiler do the work. */
1127 int rtnval = (int) arg;
1129 /* Check for overflows or underflows. */
1130 if (sizeof (LONGEST) > sizeof (int))
1134 error (_("Value out of range."));
1140 /* Print a floating point value of type TYPE (not always a
1141 TYPE_CODE_FLT), pointed to in GDB by VALADDR, on STREAM. */
1144 print_floating (const gdb_byte *valaddr, struct type *type,
1145 struct ui_file *stream)
1149 const struct floatformat *fmt = NULL;
1150 unsigned len = TYPE_LENGTH (type);
1151 enum float_kind kind;
1153 /* If it is a floating-point, check for obvious problems. */
1154 if (TYPE_CODE (type) == TYPE_CODE_FLT)
1155 fmt = floatformat_from_type (type);
1158 kind = floatformat_classify (fmt, valaddr);
1159 if (kind == float_nan)
1161 if (floatformat_is_negative (fmt, valaddr))
1162 fprintf_filtered (stream, "-");
1163 fprintf_filtered (stream, "nan(");
1164 fputs_filtered ("0x", stream);
1165 fputs_filtered (floatformat_mantissa (fmt, valaddr), stream);
1166 fprintf_filtered (stream, ")");
1169 else if (kind == float_infinite)
1171 if (floatformat_is_negative (fmt, valaddr))
1172 fputs_filtered ("-", stream);
1173 fputs_filtered ("inf", stream);
1178 /* NOTE: cagney/2002-01-15: The TYPE passed into print_floating()
1179 isn't necessarily a TYPE_CODE_FLT. Consequently, unpack_double
1180 needs to be used as that takes care of any necessary type
1181 conversions. Such conversions are of course direct to DOUBLEST
1182 and disregard any possible target floating point limitations.
1183 For instance, a u64 would be converted and displayed exactly on a
1184 host with 80 bit DOUBLEST but with loss of information on a host
1185 with 64 bit DOUBLEST. */
1187 doub = unpack_double (type, valaddr, &inv);
1190 fprintf_filtered (stream, "<invalid float value>");
1194 /* FIXME: kettenis/2001-01-20: The following code makes too much
1195 assumptions about the host and target floating point format. */
1197 /* NOTE: cagney/2002-02-03: Since the TYPE of what was passed in may
1198 not necessarily be a TYPE_CODE_FLT, the below ignores that and
1199 instead uses the type's length to determine the precision of the
1200 floating-point value being printed. */
1202 if (len < sizeof (double))
1203 fprintf_filtered (stream, "%.9g", (double) doub);
1204 else if (len == sizeof (double))
1205 fprintf_filtered (stream, "%.17g", (double) doub);
1207 #ifdef PRINTF_HAS_LONG_DOUBLE
1208 fprintf_filtered (stream, "%.35Lg", doub);
1210 /* This at least wins with values that are representable as
1212 fprintf_filtered (stream, "%.17g", (double) doub);
1217 print_decimal_floating (const gdb_byte *valaddr, struct type *type,
1218 struct ui_file *stream)
1220 enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
1221 char decstr[MAX_DECIMAL_STRING];
1222 unsigned len = TYPE_LENGTH (type);
1224 decimal_to_string (valaddr, len, byte_order, decstr);
1225 fputs_filtered (decstr, stream);
1230 print_binary_chars (struct ui_file *stream, const gdb_byte *valaddr,
1231 unsigned len, enum bfd_endian byte_order)
1234 #define BITS_IN_BYTES 8
1240 /* Declared "int" so it will be signed.
1241 This ensures that right shift will shift in zeros. */
1243 const int mask = 0x080;
1245 /* FIXME: We should be not printing leading zeroes in most cases. */
1247 if (byte_order == BFD_ENDIAN_BIG)
1253 /* Every byte has 8 binary characters; peel off
1254 and print from the MSB end. */
1256 for (i = 0; i < (BITS_IN_BYTES * sizeof (*p)); i++)
1258 if (*p & (mask >> i))
1263 fprintf_filtered (stream, "%1d", b);
1269 for (p = valaddr + len - 1;
1273 for (i = 0; i < (BITS_IN_BYTES * sizeof (*p)); i++)
1275 if (*p & (mask >> i))
1280 fprintf_filtered (stream, "%1d", b);
1286 /* VALADDR points to an integer of LEN bytes.
1287 Print it in octal on stream or format it in buf. */
1290 print_octal_chars (struct ui_file *stream, const gdb_byte *valaddr,
1291 unsigned len, enum bfd_endian byte_order)
1294 unsigned char octa1, octa2, octa3, carry;
1297 /* FIXME: We should be not printing leading zeroes in most cases. */
1300 /* Octal is 3 bits, which doesn't fit. Yuk. So we have to track
1301 * the extra bits, which cycle every three bytes:
1303 * Byte side: 0 1 2 3
1305 * bit number 123 456 78 | 9 012 345 6 | 78 901 234 | 567 890 12 |
1307 * Octal side: 0 1 carry 3 4 carry ...
1309 * Cycle number: 0 1 2
1311 * But of course we are printing from the high side, so we have to
1312 * figure out where in the cycle we are so that we end up with no
1313 * left over bits at the end.
1315 #define BITS_IN_OCTAL 3
1316 #define HIGH_ZERO 0340
1317 #define LOW_ZERO 0016
1318 #define CARRY_ZERO 0003
1319 #define HIGH_ONE 0200
1320 #define MID_ONE 0160
1321 #define LOW_ONE 0016
1322 #define CARRY_ONE 0001
1323 #define HIGH_TWO 0300
1324 #define MID_TWO 0070
1325 #define LOW_TWO 0007
1327 /* For 32 we start in cycle 2, with two bits and one bit carry;
1328 for 64 in cycle in cycle 1, with one bit and a two bit carry. */
1330 cycle = (len * BITS_IN_BYTES) % BITS_IN_OCTAL;
1333 fputs_filtered ("0", stream);
1334 if (byte_order == BFD_ENDIAN_BIG)
1343 /* No carry in, carry out two bits. */
1345 octa1 = (HIGH_ZERO & *p) >> 5;
1346 octa2 = (LOW_ZERO & *p) >> 2;
1347 carry = (CARRY_ZERO & *p);
1348 fprintf_filtered (stream, "%o", octa1);
1349 fprintf_filtered (stream, "%o", octa2);
1353 /* Carry in two bits, carry out one bit. */
1355 octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7);
1356 octa2 = (MID_ONE & *p) >> 4;
1357 octa3 = (LOW_ONE & *p) >> 1;
1358 carry = (CARRY_ONE & *p);
1359 fprintf_filtered (stream, "%o", octa1);
1360 fprintf_filtered (stream, "%o", octa2);
1361 fprintf_filtered (stream, "%o", octa3);
1365 /* Carry in one bit, no carry out. */
1367 octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6);
1368 octa2 = (MID_TWO & *p) >> 3;
1369 octa3 = (LOW_TWO & *p);
1371 fprintf_filtered (stream, "%o", octa1);
1372 fprintf_filtered (stream, "%o", octa2);
1373 fprintf_filtered (stream, "%o", octa3);
1377 error (_("Internal error in octal conversion;"));
1381 cycle = cycle % BITS_IN_OCTAL;
1386 for (p = valaddr + len - 1;
1393 /* Carry out, no carry in */
1395 octa1 = (HIGH_ZERO & *p) >> 5;
1396 octa2 = (LOW_ZERO & *p) >> 2;
1397 carry = (CARRY_ZERO & *p);
1398 fprintf_filtered (stream, "%o", octa1);
1399 fprintf_filtered (stream, "%o", octa2);
1403 /* Carry in, carry out */
1405 octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7);
1406 octa2 = (MID_ONE & *p) >> 4;
1407 octa3 = (LOW_ONE & *p) >> 1;
1408 carry = (CARRY_ONE & *p);
1409 fprintf_filtered (stream, "%o", octa1);
1410 fprintf_filtered (stream, "%o", octa2);
1411 fprintf_filtered (stream, "%o", octa3);
1415 /* Carry in, no carry out */
1417 octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6);
1418 octa2 = (MID_TWO & *p) >> 3;
1419 octa3 = (LOW_TWO & *p);
1421 fprintf_filtered (stream, "%o", octa1);
1422 fprintf_filtered (stream, "%o", octa2);
1423 fprintf_filtered (stream, "%o", octa3);
1427 error (_("Internal error in octal conversion;"));
1431 cycle = cycle % BITS_IN_OCTAL;
1437 /* VALADDR points to an integer of LEN bytes.
1438 Print it in decimal on stream or format it in buf. */
1441 print_decimal_chars (struct ui_file *stream, const gdb_byte *valaddr,
1442 unsigned len, enum bfd_endian byte_order)
1445 #define CARRY_OUT( x ) ((x) / TEN) /* extend char to int */
1446 #define CARRY_LEFT( x ) ((x) % TEN)
1447 #define SHIFT( x ) ((x) << 4)
1448 #define LOW_NIBBLE( x ) ( (x) & 0x00F)
1449 #define HIGH_NIBBLE( x ) (((x) & 0x0F0) >> 4)
1452 unsigned char *digits;
1455 int i, j, decimal_digits;
1459 /* Base-ten number is less than twice as many digits
1460 as the base 16 number, which is 2 digits per byte. */
1462 decimal_len = len * 2 * 2;
1463 digits = xmalloc (decimal_len);
1465 for (i = 0; i < decimal_len; i++)
1470 /* Ok, we have an unknown number of bytes of data to be printed in
1473 * Given a hex number (in nibbles) as XYZ, we start by taking X and
1474 * decemalizing it as "x1 x2" in two decimal nibbles. Then we multiply
1475 * the nibbles by 16, add Y and re-decimalize. Repeat with Z.
1477 * The trick is that "digits" holds a base-10 number, but sometimes
1478 * the individual digits are > 10.
1480 * Outer loop is per nibble (hex digit) of input, from MSD end to
1483 decimal_digits = 0; /* Number of decimal digits so far */
1484 p = (byte_order == BFD_ENDIAN_BIG) ? valaddr : valaddr + len - 1;
1486 while ((byte_order == BFD_ENDIAN_BIG) ? (p < valaddr + len) : (p >= valaddr))
1489 * Multiply current base-ten number by 16 in place.
1490 * Each digit was between 0 and 9, now is between
1493 for (j = 0; j < decimal_digits; j++)
1495 digits[j] = SHIFT (digits[j]);
1498 /* Take the next nibble off the input and add it to what
1499 * we've got in the LSB position. Bottom 'digit' is now
1500 * between 0 and 159.
1502 * "flip" is used to run this loop twice for each byte.
1506 /* Take top nibble. */
1508 digits[0] += HIGH_NIBBLE (*p);
1513 /* Take low nibble and bump our pointer "p". */
1515 digits[0] += LOW_NIBBLE (*p);
1516 if (byte_order == BFD_ENDIAN_BIG)
1523 /* Re-decimalize. We have to do this often enough
1524 * that we don't overflow, but once per nibble is
1525 * overkill. Easier this way, though. Note that the
1526 * carry is often larger than 10 (e.g. max initial
1527 * carry out of lowest nibble is 15, could bubble all
1528 * the way up greater than 10). So we have to do
1529 * the carrying beyond the last current digit.
1532 for (j = 0; j < decimal_len - 1; j++)
1536 /* "/" won't handle an unsigned char with
1537 * a value that if signed would be negative.
1538 * So extend to longword int via "dummy".
1541 carry = CARRY_OUT (dummy);
1542 digits[j] = CARRY_LEFT (dummy);
1544 if (j >= decimal_digits && carry == 0)
1547 * All higher digits are 0 and we
1548 * no longer have a carry.
1550 * Note: "j" is 0-based, "decimal_digits" is
1553 decimal_digits = j + 1;
1559 /* Ok, now "digits" is the decimal representation, with
1560 the "decimal_digits" actual digits. Print! */
1562 for (i = decimal_digits - 1; i >= 0; i--)
1564 fprintf_filtered (stream, "%1d", digits[i]);
1569 /* VALADDR points to an integer of LEN bytes. Print it in hex on stream. */
1572 print_hex_chars (struct ui_file *stream, const gdb_byte *valaddr,
1573 unsigned len, enum bfd_endian byte_order)
1577 /* FIXME: We should be not printing leading zeroes in most cases. */
1579 fputs_filtered ("0x", stream);
1580 if (byte_order == BFD_ENDIAN_BIG)
1586 fprintf_filtered (stream, "%02x", *p);
1591 for (p = valaddr + len - 1;
1595 fprintf_filtered (stream, "%02x", *p);
1600 /* VALADDR points to a char integer of LEN bytes.
1601 Print it out in appropriate language form on stream.
1602 Omit any leading zero chars. */
1605 print_char_chars (struct ui_file *stream, struct type *type,
1606 const gdb_byte *valaddr,
1607 unsigned len, enum bfd_endian byte_order)
1611 if (byte_order == BFD_ENDIAN_BIG)
1614 while (p < valaddr + len - 1 && *p == 0)
1617 while (p < valaddr + len)
1619 LA_EMIT_CHAR (*p, type, stream, '\'');
1625 p = valaddr + len - 1;
1626 while (p > valaddr && *p == 0)
1629 while (p >= valaddr)
1631 LA_EMIT_CHAR (*p, type, stream, '\'');
1637 /* Print function pointer with inferior address ADDRESS onto stdio
1641 print_function_pointer_address (const struct value_print_options *options,
1642 struct gdbarch *gdbarch,
1644 struct ui_file *stream)
1647 = gdbarch_convert_from_func_ptr_addr (gdbarch, address,
1650 /* If the function pointer is represented by a description, print
1651 the address of the description. */
1652 if (options->addressprint && func_addr != address)
1654 fputs_filtered ("@", stream);
1655 fputs_filtered (paddress (gdbarch, address), stream);
1656 fputs_filtered (": ", stream);
1658 print_address_demangle (options, gdbarch, func_addr, stream, demangle);
1662 /* Print on STREAM using the given OPTIONS the index for the element
1663 at INDEX of an array whose index type is INDEX_TYPE. */
1666 maybe_print_array_index (struct type *index_type, LONGEST index,
1667 struct ui_file *stream,
1668 const struct value_print_options *options)
1670 struct value *index_value;
1672 if (!options->print_array_indexes)
1675 index_value = value_from_longest (index_type, index);
1677 LA_PRINT_ARRAY_INDEX (index_value, stream, options);
1680 /* Called by various <lang>_val_print routines to print elements of an
1681 array in the form "<elem1>, <elem2>, <elem3>, ...".
1683 (FIXME?) Assumes array element separator is a comma, which is correct
1684 for all languages currently handled.
1685 (FIXME?) Some languages have a notation for repeated array elements,
1686 perhaps we should try to use that notation when appropriate. */
1689 val_print_array_elements (struct type *type,
1690 const gdb_byte *valaddr, int embedded_offset,
1691 CORE_ADDR address, struct ui_file *stream,
1693 const struct value *val,
1694 const struct value_print_options *options,
1697 unsigned int things_printed = 0;
1699 struct type *elttype, *index_type, *base_index_type;
1701 /* Position of the array element we are examining to see
1702 whether it is repeated. */
1704 /* Number of repetitions we have detected so far. */
1706 LONGEST low_bound, high_bound;
1707 LONGEST low_pos, high_pos;
1709 elttype = TYPE_TARGET_TYPE (type);
1710 eltlen = TYPE_LENGTH (check_typedef (elttype));
1711 index_type = TYPE_INDEX_TYPE (type);
1713 if (get_array_bounds (type, &low_bound, &high_bound))
1715 if (TYPE_CODE (index_type) == TYPE_CODE_RANGE)
1716 base_index_type = TYPE_TARGET_TYPE (index_type);
1718 base_index_type = index_type;
1720 /* Non-contiguous enumerations types can by used as index types
1721 in some languages (e.g. Ada). In this case, the array length
1722 shall be computed from the positions of the first and last
1723 literal in the enumeration type, and not from the values
1724 of these literals. */
1725 if (!discrete_position (base_index_type, low_bound, &low_pos)
1726 || !discrete_position (base_index_type, high_bound, &high_pos))
1728 warning (_("unable to get positions in array, use bounds instead"));
1729 low_pos = low_bound;
1730 high_pos = high_bound;
1733 /* The array length should normally be HIGH_POS - LOW_POS + 1.
1734 But we have to be a little extra careful, because some languages
1735 such as Ada allow LOW_POS to be greater than HIGH_POS for
1736 empty arrays. In that situation, the array length is just zero,
1738 if (low_pos > high_pos)
1741 len = high_pos - low_pos + 1;
1745 warning (_("unable to get bounds of array, assuming null array"));
1750 annotate_array_section_begin (i, elttype);
1752 for (; i < len && things_printed < options->print_max; i++)
1756 if (options->prettyformat_arrays)
1758 fprintf_filtered (stream, ",\n");
1759 print_spaces_filtered (2 + 2 * recurse, stream);
1763 fprintf_filtered (stream, ", ");
1766 wrap_here (n_spaces (2 + 2 * recurse));
1767 maybe_print_array_index (index_type, i + low_bound,
1772 /* Only check for reps if repeat_count_threshold is not set to
1773 UINT_MAX (unlimited). */
1774 if (options->repeat_count_threshold < UINT_MAX)
1777 && value_contents_eq (val,
1778 embedded_offset + i * eltlen,
1789 if (reps > options->repeat_count_threshold)
1791 val_print (elttype, valaddr, embedded_offset + i * eltlen,
1792 address, stream, recurse + 1, val, options,
1794 annotate_elt_rep (reps);
1795 fprintf_filtered (stream, " <repeats %u times>", reps);
1796 annotate_elt_rep_end ();
1799 things_printed += options->repeat_count_threshold;
1803 val_print (elttype, valaddr, embedded_offset + i * eltlen,
1805 stream, recurse + 1, val, options, current_language);
1810 annotate_array_section_end ();
1813 fprintf_filtered (stream, "...");
1817 /* Read LEN bytes of target memory at address MEMADDR, placing the
1818 results in GDB's memory at MYADDR. Returns a count of the bytes
1819 actually read, and optionally a target_xfer_status value in the
1820 location pointed to by ERRPTR if ERRPTR is non-null. */
1822 /* FIXME: cagney/1999-10-14: Only used by val_print_string. Can this
1823 function be eliminated. */
1826 partial_memory_read (CORE_ADDR memaddr, gdb_byte *myaddr,
1827 int len, int *errptr)
1829 int nread; /* Number of bytes actually read. */
1830 int errcode; /* Error from last read. */
1832 /* First try a complete read. */
1833 errcode = target_read_memory (memaddr, myaddr, len);
1841 /* Loop, reading one byte at a time until we get as much as we can. */
1842 for (errcode = 0, nread = 0; len > 0 && errcode == 0; nread++, len--)
1844 errcode = target_read_memory (memaddr++, myaddr++, 1);
1846 /* If an error, the last read was unsuccessful, so adjust count. */
1859 /* Read a string from the inferior, at ADDR, with LEN characters of WIDTH bytes
1860 each. Fetch at most FETCHLIMIT characters. BUFFER will be set to a newly
1861 allocated buffer containing the string, which the caller is responsible to
1862 free, and BYTES_READ will be set to the number of bytes read. Returns 0 on
1863 success, or a target_xfer_status on failure.
1865 If LEN > 0, reads the lesser of LEN or FETCHLIMIT characters
1866 (including eventual NULs in the middle or end of the string).
1868 If LEN is -1, stops at the first null character (not necessarily
1869 the first null byte) up to a maximum of FETCHLIMIT characters. Set
1870 FETCHLIMIT to UINT_MAX to read as many characters as possible from
1873 Unless an exception is thrown, BUFFER will always be allocated, even on
1874 failure. In this case, some characters might have been read before the
1875 failure happened. Check BYTES_READ to recognize this situation.
1877 Note: There was a FIXME asking to make this code use target_read_string,
1878 but this function is more general (can read past null characters, up to
1879 given LEN). Besides, it is used much more often than target_read_string
1880 so it is more tested. Perhaps callers of target_read_string should use
1881 this function instead? */
1884 read_string (CORE_ADDR addr, int len, int width, unsigned int fetchlimit,
1885 enum bfd_endian byte_order, gdb_byte **buffer, int *bytes_read)
1887 int errcode; /* Errno returned from bad reads. */
1888 unsigned int nfetch; /* Chars to fetch / chars fetched. */
1889 gdb_byte *bufptr; /* Pointer to next available byte in
1891 struct cleanup *old_chain = NULL; /* Top of the old cleanup chain. */
1893 /* Loop until we either have all the characters, or we encounter
1894 some error, such as bumping into the end of the address space. */
1898 old_chain = make_cleanup (free_current_contents, buffer);
1902 /* We want fetchlimit chars, so we might as well read them all in
1904 unsigned int fetchlen = min (len, fetchlimit);
1906 *buffer = (gdb_byte *) xmalloc (fetchlen * width);
1909 nfetch = partial_memory_read (addr, bufptr, fetchlen * width, &errcode)
1911 addr += nfetch * width;
1912 bufptr += nfetch * width;
1916 unsigned long bufsize = 0;
1917 unsigned int chunksize; /* Size of each fetch, in chars. */
1918 int found_nul; /* Non-zero if we found the nul char. */
1919 gdb_byte *limit; /* First location past end of fetch buffer. */
1922 /* We are looking for a NUL terminator to end the fetching, so we
1923 might as well read in blocks that are large enough to be efficient,
1924 but not so large as to be slow if fetchlimit happens to be large.
1925 So we choose the minimum of 8 and fetchlimit. We used to use 200
1926 instead of 8 but 200 is way too big for remote debugging over a
1928 chunksize = min (8, fetchlimit);
1933 nfetch = min (chunksize, fetchlimit - bufsize);
1935 if (*buffer == NULL)
1936 *buffer = (gdb_byte *) xmalloc (nfetch * width);
1938 *buffer = (gdb_byte *) xrealloc (*buffer,
1939 (nfetch + bufsize) * width);
1941 bufptr = *buffer + bufsize * width;
1944 /* Read as much as we can. */
1945 nfetch = partial_memory_read (addr, bufptr, nfetch * width, &errcode)
1948 /* Scan this chunk for the null character that terminates the string
1949 to print. If found, we don't need to fetch any more. Note
1950 that bufptr is explicitly left pointing at the next character
1951 after the null character, or at the next character after the end
1954 limit = bufptr + nfetch * width;
1955 while (bufptr < limit)
1959 c = extract_unsigned_integer (bufptr, width, byte_order);
1964 /* We don't care about any error which happened after
1965 the NUL terminator. */
1972 while (errcode == 0 /* no error */
1973 && bufptr - *buffer < fetchlimit * width /* no overrun */
1974 && !found_nul); /* haven't found NUL yet */
1977 { /* Length of string is really 0! */
1978 /* We always allocate *buffer. */
1979 *buffer = bufptr = xmalloc (1);
1983 /* bufptr and addr now point immediately beyond the last byte which we
1984 consider part of the string (including a '\0' which ends the string). */
1985 *bytes_read = bufptr - *buffer;
1989 discard_cleanups (old_chain);
1994 /* Return true if print_wchar can display W without resorting to a
1995 numeric escape, false otherwise. */
1998 wchar_printable (gdb_wchar_t w)
2000 return (gdb_iswprint (w)
2001 || w == LCST ('\a') || w == LCST ('\b')
2002 || w == LCST ('\f') || w == LCST ('\n')
2003 || w == LCST ('\r') || w == LCST ('\t')
2004 || w == LCST ('\v'));
2007 /* A helper function that converts the contents of STRING to wide
2008 characters and then appends them to OUTPUT. */
2011 append_string_as_wide (const char *string,
2012 struct obstack *output)
2014 for (; *string; ++string)
2016 gdb_wchar_t w = gdb_btowc (*string);
2017 obstack_grow (output, &w, sizeof (gdb_wchar_t));
2021 /* Print a wide character W to OUTPUT. ORIG is a pointer to the
2022 original (target) bytes representing the character, ORIG_LEN is the
2023 number of valid bytes. WIDTH is the number of bytes in a base
2024 characters of the type. OUTPUT is an obstack to which wide
2025 characters are emitted. QUOTER is a (narrow) character indicating
2026 the style of quotes surrounding the character to be printed.
2027 NEED_ESCAPE is an in/out flag which is used to track numeric
2028 escapes across calls. */
2031 print_wchar (gdb_wint_t w, const gdb_byte *orig,
2032 int orig_len, int width,
2033 enum bfd_endian byte_order,
2034 struct obstack *output,
2035 int quoter, int *need_escapep)
2037 int need_escape = *need_escapep;
2041 /* iswprint implementation on Windows returns 1 for tab character.
2042 In order to avoid different printout on this host, we explicitly
2043 use wchar_printable function. */
2047 obstack_grow_wstr (output, LCST ("\\a"));
2050 obstack_grow_wstr (output, LCST ("\\b"));
2053 obstack_grow_wstr (output, LCST ("\\f"));
2056 obstack_grow_wstr (output, LCST ("\\n"));
2059 obstack_grow_wstr (output, LCST ("\\r"));
2062 obstack_grow_wstr (output, LCST ("\\t"));
2065 obstack_grow_wstr (output, LCST ("\\v"));
2069 if (wchar_printable (w) && (!need_escape || (!gdb_iswdigit (w)
2071 && w != LCST ('9'))))
2073 gdb_wchar_t wchar = w;
2075 if (w == gdb_btowc (quoter) || w == LCST ('\\'))
2076 obstack_grow_wstr (output, LCST ("\\"));
2077 obstack_grow (output, &wchar, sizeof (gdb_wchar_t));
2083 for (i = 0; i + width <= orig_len; i += width)
2088 value = extract_unsigned_integer (&orig[i], width,
2090 /* If the value fits in 3 octal digits, print it that
2091 way. Otherwise, print it as a hex escape. */
2093 xsnprintf (octal, sizeof (octal), "\\%.3o",
2094 (int) (value & 0777));
2096 xsnprintf (octal, sizeof (octal), "\\x%lx", (long) value);
2097 append_string_as_wide (octal, output);
2099 /* If we somehow have extra bytes, print them now. */
2100 while (i < orig_len)
2104 xsnprintf (octal, sizeof (octal), "\\%.3o", orig[i] & 0xff);
2105 append_string_as_wide (octal, output);
2116 /* Print the character C on STREAM as part of the contents of a
2117 literal string whose delimiter is QUOTER. ENCODING names the
2121 generic_emit_char (int c, struct type *type, struct ui_file *stream,
2122 int quoter, const char *encoding)
2124 enum bfd_endian byte_order
2125 = gdbarch_byte_order (get_type_arch (type));
2126 struct obstack wchar_buf, output;
2127 struct cleanup *cleanups;
2129 struct wchar_iterator *iter;
2130 int need_escape = 0;
2132 buf = alloca (TYPE_LENGTH (type));
2133 pack_long (buf, type, c);
2135 iter = make_wchar_iterator (buf, TYPE_LENGTH (type),
2136 encoding, TYPE_LENGTH (type));
2137 cleanups = make_cleanup_wchar_iterator (iter);
2139 /* This holds the printable form of the wchar_t data. */
2140 obstack_init (&wchar_buf);
2141 make_cleanup_obstack_free (&wchar_buf);
2147 const gdb_byte *buf;
2149 int print_escape = 1;
2150 enum wchar_iterate_result result;
2152 num_chars = wchar_iterate (iter, &result, &chars, &buf, &buflen);
2157 /* If all characters are printable, print them. Otherwise,
2158 we're going to have to print an escape sequence. We
2159 check all characters because we want to print the target
2160 bytes in the escape sequence, and we don't know character
2161 boundaries there. */
2165 for (i = 0; i < num_chars; ++i)
2166 if (!wchar_printable (chars[i]))
2174 for (i = 0; i < num_chars; ++i)
2175 print_wchar (chars[i], buf, buflen,
2176 TYPE_LENGTH (type), byte_order,
2177 &wchar_buf, quoter, &need_escape);
2181 /* This handles the NUM_CHARS == 0 case as well. */
2183 print_wchar (gdb_WEOF, buf, buflen, TYPE_LENGTH (type),
2184 byte_order, &wchar_buf, quoter, &need_escape);
2187 /* The output in the host encoding. */
2188 obstack_init (&output);
2189 make_cleanup_obstack_free (&output);
2191 convert_between_encodings (INTERMEDIATE_ENCODING, host_charset (),
2192 (gdb_byte *) obstack_base (&wchar_buf),
2193 obstack_object_size (&wchar_buf),
2194 sizeof (gdb_wchar_t), &output, translit_char);
2195 obstack_1grow (&output, '\0');
2197 fputs_filtered (obstack_base (&output), stream);
2199 do_cleanups (cleanups);
2202 /* Return the repeat count of the next character/byte in ITER,
2203 storing the result in VEC. */
2206 count_next_character (struct wchar_iterator *iter,
2207 VEC (converted_character_d) **vec)
2209 struct converted_character *current;
2211 if (VEC_empty (converted_character_d, *vec))
2213 struct converted_character tmp;
2217 = wchar_iterate (iter, &tmp.result, &chars, &tmp.buf, &tmp.buflen);
2218 if (tmp.num_chars > 0)
2220 gdb_assert (tmp.num_chars < MAX_WCHARS);
2221 memcpy (tmp.chars, chars, tmp.num_chars * sizeof (gdb_wchar_t));
2223 VEC_safe_push (converted_character_d, *vec, &tmp);
2226 current = VEC_last (converted_character_d, *vec);
2228 /* Count repeated characters or bytes. */
2229 current->repeat_count = 1;
2230 if (current->num_chars == -1)
2238 struct converted_character d;
2245 /* Get the next character. */
2247 = wchar_iterate (iter, &d.result, &chars, &d.buf, &d.buflen);
2249 /* If a character was successfully converted, save the character
2250 into the converted character. */
2251 if (d.num_chars > 0)
2253 gdb_assert (d.num_chars < MAX_WCHARS);
2254 memcpy (d.chars, chars, WCHAR_BUFLEN (d.num_chars));
2257 /* Determine if the current character is the same as this
2259 if (d.num_chars == current->num_chars && d.result == current->result)
2261 /* There are two cases to consider:
2263 1) Equality of converted character (num_chars > 0)
2264 2) Equality of non-converted character (num_chars == 0) */
2265 if ((current->num_chars > 0
2266 && memcmp (current->chars, d.chars,
2267 WCHAR_BUFLEN (current->num_chars)) == 0)
2268 || (current->num_chars == 0
2269 && current->buflen == d.buflen
2270 && memcmp (current->buf, d.buf, current->buflen) == 0))
2271 ++current->repeat_count;
2279 /* Push this next converted character onto the result vector. */
2280 repeat = current->repeat_count;
2281 VEC_safe_push (converted_character_d, *vec, &d);
2286 /* Print the characters in CHARS to the OBSTACK. QUOTE_CHAR is the quote
2287 character to use with string output. WIDTH is the size of the output
2288 character type. BYTE_ORDER is the the target byte order. OPTIONS
2289 is the user's print options. */
2292 print_converted_chars_to_obstack (struct obstack *obstack,
2293 VEC (converted_character_d) *chars,
2294 int quote_char, int width,
2295 enum bfd_endian byte_order,
2296 const struct value_print_options *options)
2299 struct converted_character *elem;
2300 enum {START, SINGLE, REPEAT, INCOMPLETE, FINISH} state, last;
2301 gdb_wchar_t wide_quote_char = gdb_btowc (quote_char);
2302 int need_escape = 0;
2304 /* Set the start state. */
2306 last = state = START;
2314 /* Nothing to do. */
2321 /* We are outputting a single character
2322 (< options->repeat_count_threshold). */
2326 /* We were outputting some other type of content, so we
2327 must output and a comma and a quote. */
2329 obstack_grow_wstr (obstack, LCST (", "));
2330 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
2332 /* Output the character. */
2333 for (j = 0; j < elem->repeat_count; ++j)
2335 if (elem->result == wchar_iterate_ok)
2336 print_wchar (elem->chars[0], elem->buf, elem->buflen, width,
2337 byte_order, obstack, quote_char, &need_escape);
2339 print_wchar (gdb_WEOF, elem->buf, elem->buflen, width,
2340 byte_order, obstack, quote_char, &need_escape);
2350 /* We are outputting a character with a repeat count
2351 greater than options->repeat_count_threshold. */
2355 /* We were outputting a single string. Terminate the
2357 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
2360 obstack_grow_wstr (obstack, LCST (", "));
2362 /* Output the character and repeat string. */
2363 obstack_grow_wstr (obstack, LCST ("'"));
2364 if (elem->result == wchar_iterate_ok)
2365 print_wchar (elem->chars[0], elem->buf, elem->buflen, width,
2366 byte_order, obstack, quote_char, &need_escape);
2368 print_wchar (gdb_WEOF, elem->buf, elem->buflen, width,
2369 byte_order, obstack, quote_char, &need_escape);
2370 obstack_grow_wstr (obstack, LCST ("'"));
2371 s = xstrprintf (_(" <repeats %u times>"), elem->repeat_count);
2372 for (j = 0; s[j]; ++j)
2374 gdb_wchar_t w = gdb_btowc (s[j]);
2375 obstack_grow (obstack, &w, sizeof (gdb_wchar_t));
2382 /* We are outputting an incomplete sequence. */
2385 /* If we were outputting a string of SINGLE characters,
2386 terminate the quote. */
2387 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
2390 obstack_grow_wstr (obstack, LCST (", "));
2392 /* Output the incomplete sequence string. */
2393 obstack_grow_wstr (obstack, LCST ("<incomplete sequence "));
2394 print_wchar (gdb_WEOF, elem->buf, elem->buflen, width, byte_order,
2395 obstack, 0, &need_escape);
2396 obstack_grow_wstr (obstack, LCST (">"));
2398 /* We do not attempt to outupt anything after this. */
2403 /* All done. If we were outputting a string of SINGLE
2404 characters, the string must be terminated. Otherwise,
2405 REPEAT and INCOMPLETE are always left properly terminated. */
2407 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
2412 /* Get the next element and state. */
2414 if (state != FINISH)
2416 elem = VEC_index (converted_character_d, chars, idx++);
2417 switch (elem->result)
2419 case wchar_iterate_ok:
2420 case wchar_iterate_invalid:
2421 if (elem->repeat_count > options->repeat_count_threshold)
2427 case wchar_iterate_incomplete:
2431 case wchar_iterate_eof:
2439 /* Print the character string STRING, printing at most LENGTH
2440 characters. LENGTH is -1 if the string is nul terminated. TYPE is
2441 the type of each character. OPTIONS holds the printing options;
2442 printing stops early if the number hits print_max; repeat counts
2443 are printed as appropriate. Print ellipses at the end if we had to
2444 stop before printing LENGTH characters, or if FORCE_ELLIPSES.
2445 QUOTE_CHAR is the character to print at each end of the string. If
2446 C_STYLE_TERMINATOR is true, and the last character is 0, then it is
2450 generic_printstr (struct ui_file *stream, struct type *type,
2451 const gdb_byte *string, unsigned int length,
2452 const char *encoding, int force_ellipses,
2453 int quote_char, int c_style_terminator,
2454 const struct value_print_options *options)
2456 enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
2458 int width = TYPE_LENGTH (type);
2459 struct obstack wchar_buf, output;
2460 struct cleanup *cleanup;
2461 struct wchar_iterator *iter;
2463 struct converted_character *last;
2464 VEC (converted_character_d) *converted_chars;
2468 unsigned long current_char = 1;
2470 for (i = 0; current_char; ++i)
2473 current_char = extract_unsigned_integer (string + i * width,
2479 /* If the string was not truncated due to `set print elements', and
2480 the last byte of it is a null, we don't print that, in
2481 traditional C style. */
2482 if (c_style_terminator
2485 && (extract_unsigned_integer (string + (length - 1) * width,
2486 width, byte_order) == 0))
2491 fputs_filtered ("\"\"", stream);
2495 /* Arrange to iterate over the characters, in wchar_t form. */
2496 iter = make_wchar_iterator (string, length * width, encoding, width);
2497 cleanup = make_cleanup_wchar_iterator (iter);
2498 converted_chars = NULL;
2499 make_cleanup (VEC_cleanup (converted_character_d), &converted_chars);
2501 /* Convert characters until the string is over or the maximum
2502 number of printed characters has been reached. */
2504 while (i < options->print_max)
2510 /* Grab the next character and repeat count. */
2511 r = count_next_character (iter, &converted_chars);
2513 /* If less than zero, the end of the input string was reached. */
2517 /* Otherwise, add the count to the total print count and get
2518 the next character. */
2522 /* Get the last element and determine if the entire string was
2524 last = VEC_last (converted_character_d, converted_chars);
2525 finished = (last->result == wchar_iterate_eof);
2527 /* Ensure that CONVERTED_CHARS is terminated. */
2528 last->result = wchar_iterate_eof;
2530 /* WCHAR_BUF is the obstack we use to represent the string in
2532 obstack_init (&wchar_buf);
2533 make_cleanup_obstack_free (&wchar_buf);
2535 /* Print the output string to the obstack. */
2536 print_converted_chars_to_obstack (&wchar_buf, converted_chars, quote_char,
2537 width, byte_order, options);
2539 if (force_ellipses || !finished)
2540 obstack_grow_wstr (&wchar_buf, LCST ("..."));
2542 /* OUTPUT is where we collect `char's for printing. */
2543 obstack_init (&output);
2544 make_cleanup_obstack_free (&output);
2546 convert_between_encodings (INTERMEDIATE_ENCODING, host_charset (),
2547 (gdb_byte *) obstack_base (&wchar_buf),
2548 obstack_object_size (&wchar_buf),
2549 sizeof (gdb_wchar_t), &output, translit_char);
2550 obstack_1grow (&output, '\0');
2552 fputs_filtered (obstack_base (&output), stream);
2554 do_cleanups (cleanup);
2557 /* Print a string from the inferior, starting at ADDR and printing up to LEN
2558 characters, of WIDTH bytes a piece, to STREAM. If LEN is -1, printing
2559 stops at the first null byte, otherwise printing proceeds (including null
2560 bytes) until either print_max or LEN characters have been printed,
2561 whichever is smaller. ENCODING is the name of the string's
2562 encoding. It can be NULL, in which case the target encoding is
2566 val_print_string (struct type *elttype, const char *encoding,
2567 CORE_ADDR addr, int len,
2568 struct ui_file *stream,
2569 const struct value_print_options *options)
2571 int force_ellipsis = 0; /* Force ellipsis to be printed if nonzero. */
2572 int errcode; /* Errno returned from bad reads. */
2573 int found_nul; /* Non-zero if we found the nul char. */
2574 unsigned int fetchlimit; /* Maximum number of chars to print. */
2576 gdb_byte *buffer = NULL; /* Dynamically growable fetch buffer. */
2577 struct cleanup *old_chain = NULL; /* Top of the old cleanup chain. */
2578 struct gdbarch *gdbarch = get_type_arch (elttype);
2579 enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
2580 int width = TYPE_LENGTH (elttype);
2582 /* First we need to figure out the limit on the number of characters we are
2583 going to attempt to fetch and print. This is actually pretty simple. If
2584 LEN >= zero, then the limit is the minimum of LEN and print_max. If
2585 LEN is -1, then the limit is print_max. This is true regardless of
2586 whether print_max is zero, UINT_MAX (unlimited), or something in between,
2587 because finding the null byte (or available memory) is what actually
2588 limits the fetch. */
2590 fetchlimit = (len == -1 ? options->print_max : min (len,
2591 options->print_max));
2593 errcode = read_string (addr, len, width, fetchlimit, byte_order,
2594 &buffer, &bytes_read);
2595 old_chain = make_cleanup (xfree, buffer);
2599 /* We now have either successfully filled the buffer to fetchlimit,
2600 or terminated early due to an error or finding a null char when
2603 /* Determine found_nul by looking at the last character read. */
2605 if (bytes_read >= width)
2606 found_nul = extract_unsigned_integer (buffer + bytes_read - width, width,
2608 if (len == -1 && !found_nul)
2612 /* We didn't find a NUL terminator we were looking for. Attempt
2613 to peek at the next character. If not successful, or it is not
2614 a null byte, then force ellipsis to be printed. */
2616 peekbuf = (gdb_byte *) alloca (width);
2618 if (target_read_memory (addr, peekbuf, width) == 0
2619 && extract_unsigned_integer (peekbuf, width, byte_order) != 0)
2622 else if ((len >= 0 && errcode != 0) || (len > bytes_read / width))
2624 /* Getting an error when we have a requested length, or fetching less
2625 than the number of characters actually requested, always make us
2630 /* If we get an error before fetching anything, don't print a string.
2631 But if we fetch something and then get an error, print the string
2632 and then the error message. */
2633 if (errcode == 0 || bytes_read > 0)
2635 LA_PRINT_STRING (stream, elttype, buffer, bytes_read / width,
2636 encoding, force_ellipsis, options);
2643 str = memory_error_message (errcode, gdbarch, addr);
2644 make_cleanup (xfree, str);
2646 fprintf_filtered (stream, "<error: ");
2647 fputs_filtered (str, stream);
2648 fprintf_filtered (stream, ">");
2652 do_cleanups (old_chain);
2654 return (bytes_read / width);
2658 /* The 'set input-radix' command writes to this auxiliary variable.
2659 If the requested radix is valid, INPUT_RADIX is updated; otherwise,
2660 it is left unchanged. */
2662 static unsigned input_radix_1 = 10;
2664 /* Validate an input or output radix setting, and make sure the user
2665 knows what they really did here. Radix setting is confusing, e.g.
2666 setting the input radix to "10" never changes it! */
2669 set_input_radix (char *args, int from_tty, struct cmd_list_element *c)
2671 set_input_radix_1 (from_tty, input_radix_1);
2675 set_input_radix_1 (int from_tty, unsigned radix)
2677 /* We don't currently disallow any input radix except 0 or 1, which don't
2678 make any mathematical sense. In theory, we can deal with any input
2679 radix greater than 1, even if we don't have unique digits for every
2680 value from 0 to radix-1, but in practice we lose on large radix values.
2681 We should either fix the lossage or restrict the radix range more.
2686 input_radix_1 = input_radix;
2687 error (_("Nonsense input radix ``decimal %u''; input radix unchanged."),
2690 input_radix_1 = input_radix = radix;
2693 printf_filtered (_("Input radix now set to "
2694 "decimal %u, hex %x, octal %o.\n"),
2695 radix, radix, radix);
2699 /* The 'set output-radix' command writes to this auxiliary variable.
2700 If the requested radix is valid, OUTPUT_RADIX is updated,
2701 otherwise, it is left unchanged. */
2703 static unsigned output_radix_1 = 10;
2706 set_output_radix (char *args, int from_tty, struct cmd_list_element *c)
2708 set_output_radix_1 (from_tty, output_radix_1);
2712 set_output_radix_1 (int from_tty, unsigned radix)
2714 /* Validate the radix and disallow ones that we aren't prepared to
2715 handle correctly, leaving the radix unchanged. */
2719 user_print_options.output_format = 'x'; /* hex */
2722 user_print_options.output_format = 0; /* decimal */
2725 user_print_options.output_format = 'o'; /* octal */
2728 output_radix_1 = output_radix;
2729 error (_("Unsupported output radix ``decimal %u''; "
2730 "output radix unchanged."),
2733 output_radix_1 = output_radix = radix;
2736 printf_filtered (_("Output radix now set to "
2737 "decimal %u, hex %x, octal %o.\n"),
2738 radix, radix, radix);
2742 /* Set both the input and output radix at once. Try to set the output radix
2743 first, since it has the most restrictive range. An radix that is valid as
2744 an output radix is also valid as an input radix.
2746 It may be useful to have an unusual input radix. If the user wishes to
2747 set an input radix that is not valid as an output radix, he needs to use
2748 the 'set input-radix' command. */
2751 set_radix (char *arg, int from_tty)
2755 radix = (arg == NULL) ? 10 : parse_and_eval_long (arg);
2756 set_output_radix_1 (0, radix);
2757 set_input_radix_1 (0, radix);
2760 printf_filtered (_("Input and output radices now set to "
2761 "decimal %u, hex %x, octal %o.\n"),
2762 radix, radix, radix);
2766 /* Show both the input and output radices. */
2769 show_radix (char *arg, int from_tty)
2773 if (input_radix == output_radix)
2775 printf_filtered (_("Input and output radices set to "
2776 "decimal %u, hex %x, octal %o.\n"),
2777 input_radix, input_radix, input_radix);
2781 printf_filtered (_("Input radix set to decimal "
2782 "%u, hex %x, octal %o.\n"),
2783 input_radix, input_radix, input_radix);
2784 printf_filtered (_("Output radix set to decimal "
2785 "%u, hex %x, octal %o.\n"),
2786 output_radix, output_radix, output_radix);
2793 set_print (char *arg, int from_tty)
2796 "\"set print\" must be followed by the name of a print subcommand.\n");
2797 help_list (setprintlist, "set print ", all_commands, gdb_stdout);
2801 show_print (char *args, int from_tty)
2803 cmd_show_list (showprintlist, from_tty, "");
2807 set_print_raw (char *arg, int from_tty)
2810 "\"set print raw\" must be followed by the name of a \"print raw\" subcommand.\n");
2811 help_list (setprintrawlist, "set print raw ", all_commands, gdb_stdout);
2815 show_print_raw (char *args, int from_tty)
2817 cmd_show_list (showprintrawlist, from_tty, "");
2822 _initialize_valprint (void)
2824 add_prefix_cmd ("print", no_class, set_print,
2825 _("Generic command for setting how things print."),
2826 &setprintlist, "set print ", 0, &setlist);
2827 add_alias_cmd ("p", "print", no_class, 1, &setlist);
2828 /* Prefer set print to set prompt. */
2829 add_alias_cmd ("pr", "print", no_class, 1, &setlist);
2831 add_prefix_cmd ("print", no_class, show_print,
2832 _("Generic command for showing print settings."),
2833 &showprintlist, "show print ", 0, &showlist);
2834 add_alias_cmd ("p", "print", no_class, 1, &showlist);
2835 add_alias_cmd ("pr", "print", no_class, 1, &showlist);
2837 add_prefix_cmd ("raw", no_class, set_print_raw,
2839 Generic command for setting what things to print in \"raw\" mode."),
2840 &setprintrawlist, "set print raw ", 0, &setprintlist);
2841 add_prefix_cmd ("raw", no_class, show_print_raw,
2842 _("Generic command for showing \"print raw\" settings."),
2843 &showprintrawlist, "show print raw ", 0, &showprintlist);
2845 add_setshow_uinteger_cmd ("elements", no_class,
2846 &user_print_options.print_max, _("\
2847 Set limit on string chars or array elements to print."), _("\
2848 Show limit on string chars or array elements to print."), _("\
2849 \"set print elements unlimited\" causes there to be no limit."),
2852 &setprintlist, &showprintlist);
2854 add_setshow_boolean_cmd ("null-stop", no_class,
2855 &user_print_options.stop_print_at_null, _("\
2856 Set printing of char arrays to stop at first null char."), _("\
2857 Show printing of char arrays to stop at first null char."), NULL,
2859 show_stop_print_at_null,
2860 &setprintlist, &showprintlist);
2862 add_setshow_uinteger_cmd ("repeats", no_class,
2863 &user_print_options.repeat_count_threshold, _("\
2864 Set threshold for repeated print elements."), _("\
2865 Show threshold for repeated print elements."), _("\
2866 \"set print repeats unlimited\" causes all elements to be individually printed."),
2868 show_repeat_count_threshold,
2869 &setprintlist, &showprintlist);
2871 add_setshow_boolean_cmd ("pretty", class_support,
2872 &user_print_options.prettyformat_structs, _("\
2873 Set pretty formatting of structures."), _("\
2874 Show pretty formatting of structures."), NULL,
2876 show_prettyformat_structs,
2877 &setprintlist, &showprintlist);
2879 add_setshow_boolean_cmd ("union", class_support,
2880 &user_print_options.unionprint, _("\
2881 Set printing of unions interior to structures."), _("\
2882 Show printing of unions interior to structures."), NULL,
2885 &setprintlist, &showprintlist);
2887 add_setshow_boolean_cmd ("array", class_support,
2888 &user_print_options.prettyformat_arrays, _("\
2889 Set pretty formatting of arrays."), _("\
2890 Show pretty formatting of arrays."), NULL,
2892 show_prettyformat_arrays,
2893 &setprintlist, &showprintlist);
2895 add_setshow_boolean_cmd ("address", class_support,
2896 &user_print_options.addressprint, _("\
2897 Set printing of addresses."), _("\
2898 Show printing of addresses."), NULL,
2901 &setprintlist, &showprintlist);
2903 add_setshow_boolean_cmd ("symbol", class_support,
2904 &user_print_options.symbol_print, _("\
2905 Set printing of symbol names when printing pointers."), _("\
2906 Show printing of symbol names when printing pointers."),
2909 &setprintlist, &showprintlist);
2911 add_setshow_zuinteger_cmd ("input-radix", class_support, &input_radix_1,
2913 Set default input radix for entering numbers."), _("\
2914 Show default input radix for entering numbers."), NULL,
2917 &setlist, &showlist);
2919 add_setshow_zuinteger_cmd ("output-radix", class_support, &output_radix_1,
2921 Set default output radix for printing of values."), _("\
2922 Show default output radix for printing of values."), NULL,
2925 &setlist, &showlist);
2927 /* The "set radix" and "show radix" commands are special in that
2928 they are like normal set and show commands but allow two normally
2929 independent variables to be either set or shown with a single
2930 command. So the usual deprecated_add_set_cmd() and [deleted]
2931 add_show_from_set() commands aren't really appropriate. */
2932 /* FIXME: i18n: With the new add_setshow_integer command, that is no
2933 longer true - show can display anything. */
2934 add_cmd ("radix", class_support, set_radix, _("\
2935 Set default input and output number radices.\n\
2936 Use 'set input-radix' or 'set output-radix' to independently set each.\n\
2937 Without an argument, sets both radices back to the default value of 10."),
2939 add_cmd ("radix", class_support, show_radix, _("\
2940 Show the default input and output number radices.\n\
2941 Use 'show input-radix' or 'show output-radix' to independently show each."),
2944 add_setshow_boolean_cmd ("array-indexes", class_support,
2945 &user_print_options.print_array_indexes, _("\
2946 Set printing of array indexes."), _("\
2947 Show printing of array indexes"), NULL, NULL, show_print_array_indexes,
2948 &setprintlist, &showprintlist);