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);
451 /* A generic val_print that is suitable for use by language
452 implementations of the la_val_print method. This function can
453 handle most type codes, though not all, notably exception
454 TYPE_CODE_UNION and TYPE_CODE_STRUCT, which must be implemented by
457 Most arguments are as to val_print.
459 The additional DECORATIONS argument can be used to customize the
460 output in some small, language-specific ways. */
463 generic_val_print (struct type *type, const gdb_byte *valaddr,
464 int embedded_offset, CORE_ADDR address,
465 struct ui_file *stream, int recurse,
466 const struct value *original_value,
467 const struct value_print_options *options,
468 const struct generic_val_print_decorations *decorations)
470 struct gdbarch *gdbarch = get_type_arch (type);
471 unsigned int i = 0; /* Number of characters printed. */
473 struct type *elttype;
474 struct type *unresolved_type = type;
477 type = check_typedef (type);
478 switch (TYPE_CODE (type))
480 case TYPE_CODE_ARRAY:
481 generic_val_print_array (type, valaddr, embedded_offset, address, stream,
482 recurse, original_value, options);
485 case TYPE_CODE_MEMBERPTR:
486 val_print_scalar_formatted (type, valaddr, embedded_offset,
487 original_value, options, 0, stream);
491 generic_val_print_ptr (type, valaddr, embedded_offset, stream,
492 original_value, options);
496 elttype = check_typedef (TYPE_TARGET_TYPE (type));
497 if (options->addressprint)
500 = extract_typed_address (valaddr + embedded_offset, type);
502 fprintf_filtered (stream, "@");
503 fputs_filtered (paddress (gdbarch, addr), stream);
504 if (options->deref_ref)
505 fputs_filtered (": ", stream);
507 /* De-reference the reference. */
508 if (options->deref_ref)
510 if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
512 struct value *deref_val;
514 deref_val = coerce_ref_if_computed (original_value);
515 if (deref_val != NULL)
517 /* More complicated computed references are not supported. */
518 gdb_assert (embedded_offset == 0);
521 deref_val = value_at (TYPE_TARGET_TYPE (type),
522 unpack_pointer (type,
524 + embedded_offset)));
526 common_val_print (deref_val, stream, recurse, options,
530 fputs_filtered ("???", stream);
537 val_print_scalar_formatted (type, valaddr, embedded_offset,
538 original_value, options, 0, stream);
541 len = TYPE_NFIELDS (type);
542 val = unpack_long (type, valaddr + embedded_offset);
543 for (i = 0; i < len; i++)
546 if (val == TYPE_FIELD_ENUMVAL (type, i))
553 fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
555 else if (TYPE_FLAG_ENUM (type))
559 /* We have a "flag" enum, so we try to decompose it into
560 pieces as appropriate. A flag enum has disjoint
561 constants by definition. */
562 fputs_filtered ("(", stream);
563 for (i = 0; i < len; ++i)
567 if ((val & TYPE_FIELD_ENUMVAL (type, i)) != 0)
570 fputs_filtered (" | ", stream);
573 val &= ~TYPE_FIELD_ENUMVAL (type, i);
574 fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
578 if (first || val != 0)
581 fputs_filtered (" | ", stream);
582 fputs_filtered ("unknown: ", stream);
583 print_longest (stream, 'd', 0, val);
586 fputs_filtered (")", stream);
589 print_longest (stream, 'd', 0, val);
592 case TYPE_CODE_FLAGS:
594 val_print_scalar_formatted (type, valaddr, embedded_offset,
595 original_value, options, 0, stream);
597 val_print_type_code_flags (type, valaddr + embedded_offset,
602 case TYPE_CODE_METHOD:
605 val_print_scalar_formatted (type, valaddr, embedded_offset,
606 original_value, options, 0, stream);
609 /* FIXME, we should consider, at least for ANSI C language,
610 eliminating the distinction made between FUNCs and POINTERs
612 fprintf_filtered (stream, "{");
613 type_print (type, "", stream, -1);
614 fprintf_filtered (stream, "} ");
615 /* Try to print what function it points to, and its address. */
616 print_address_demangle (options, gdbarch, address, stream, demangle);
620 if (options->format || options->output_format)
622 struct value_print_options opts = *options;
623 opts.format = (options->format ? options->format
624 : options->output_format);
625 val_print_scalar_formatted (type, valaddr, embedded_offset,
626 original_value, &opts, 0, stream);
630 val = unpack_long (type, valaddr + embedded_offset);
632 fputs_filtered (decorations->false_name, stream);
634 fputs_filtered (decorations->true_name, stream);
636 print_longest (stream, 'd', 0, val);
640 case TYPE_CODE_RANGE:
641 /* FIXME: create_static_range_type does not set the unsigned bit in a
642 range type (I think it probably should copy it from the
643 target type), so we won't print values which are too large to
644 fit in a signed integer correctly. */
645 /* FIXME: Doesn't handle ranges of enums correctly. (Can't just
646 print with the target type, though, because the size of our
647 type and the target type might differ). */
652 if (options->format || options->output_format)
654 struct value_print_options opts = *options;
656 opts.format = (options->format ? options->format
657 : options->output_format);
658 val_print_scalar_formatted (type, valaddr, embedded_offset,
659 original_value, &opts, 0, stream);
662 val_print_type_code_int (type, valaddr + embedded_offset, stream);
666 if (options->format || options->output_format)
668 struct value_print_options opts = *options;
670 opts.format = (options->format ? options->format
671 : options->output_format);
672 val_print_scalar_formatted (type, valaddr, embedded_offset,
673 original_value, &opts, 0, stream);
677 val = unpack_long (type, valaddr + embedded_offset);
678 if (TYPE_UNSIGNED (type))
679 fprintf_filtered (stream, "%u", (unsigned int) val);
681 fprintf_filtered (stream, "%d", (int) val);
682 fputs_filtered (" ", stream);
683 LA_PRINT_CHAR (val, unresolved_type, stream);
690 val_print_scalar_formatted (type, valaddr, embedded_offset,
691 original_value, options, 0, stream);
695 print_floating (valaddr + embedded_offset, type, stream);
699 case TYPE_CODE_DECFLOAT:
701 val_print_scalar_formatted (type, valaddr, embedded_offset,
702 original_value, options, 0, stream);
704 print_decimal_floating (valaddr + embedded_offset,
709 fputs_filtered (decorations->void_name, stream);
712 case TYPE_CODE_ERROR:
713 fprintf_filtered (stream, "%s", TYPE_ERROR_NAME (type));
716 case TYPE_CODE_UNDEF:
717 /* This happens (without TYPE_FLAG_STUB set) on systems which
718 don't use dbx xrefs (NO_DBX_XREFS in gcc) if a file has a
719 "struct foo *bar" and no complete type for struct foo in that
721 fprintf_filtered (stream, _("<incomplete type>"));
724 case TYPE_CODE_COMPLEX:
725 fprintf_filtered (stream, "%s", decorations->complex_prefix);
727 val_print_scalar_formatted (TYPE_TARGET_TYPE (type),
728 valaddr, embedded_offset,
729 original_value, options, 0, stream);
731 print_floating (valaddr + embedded_offset,
732 TYPE_TARGET_TYPE (type),
734 fprintf_filtered (stream, "%s", decorations->complex_infix);
736 val_print_scalar_formatted (TYPE_TARGET_TYPE (type),
739 + TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
743 print_floating (valaddr + embedded_offset
744 + TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
745 TYPE_TARGET_TYPE (type),
747 fprintf_filtered (stream, "%s", decorations->complex_suffix);
750 case TYPE_CODE_UNION:
751 case TYPE_CODE_STRUCT:
752 case TYPE_CODE_METHODPTR:
754 error (_("Unhandled type code %d in symbol table."),
760 /* Print using the given LANGUAGE the data of type TYPE located at
761 VALADDR + EMBEDDED_OFFSET (within GDB), which came from the
762 inferior at address ADDRESS + EMBEDDED_OFFSET, onto stdio stream
763 STREAM according to OPTIONS. VAL is the whole object that came
764 from ADDRESS. VALADDR must point to the head of VAL's contents
767 The language printers will pass down an adjusted EMBEDDED_OFFSET to
768 further helper subroutines as subfields of TYPE are printed. In
769 such cases, VALADDR is passed down unadjusted, as well as VAL, so
770 that VAL can be queried for metadata about the contents data being
771 printed, using EMBEDDED_OFFSET as an offset into VAL's contents
772 buffer. For example: "has this field been optimized out", or "I'm
773 printing an object while inspecting a traceframe; has this
774 particular piece of data been collected?".
776 RECURSE indicates the amount of indentation to supply before
777 continuation lines; this amount is roughly twice the value of
781 val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset,
782 CORE_ADDR address, struct ui_file *stream, int recurse,
783 const struct value *val,
784 const struct value_print_options *options,
785 const struct language_defn *language)
788 struct value_print_options local_opts = *options;
789 struct type *real_type = check_typedef (type);
791 if (local_opts.prettyformat == Val_prettyformat_default)
792 local_opts.prettyformat = (local_opts.prettyformat_structs
793 ? Val_prettyformat : Val_no_prettyformat);
797 /* Ensure that the type is complete and not just a stub. If the type is
798 only a stub and we can't find and substitute its complete type, then
799 print appropriate string and return. */
801 if (TYPE_STUB (real_type))
803 fprintf_filtered (stream, _("<incomplete type>"));
808 if (!valprint_check_validity (stream, real_type, embedded_offset, val))
813 ret = apply_ext_lang_val_pretty_printer (type, valaddr, embedded_offset,
814 address, stream, recurse,
815 val, options, language);
820 /* Handle summary mode. If the value is a scalar, print it;
821 otherwise, print an ellipsis. */
822 if (options->summary && !val_print_scalar_type_p (type))
824 fprintf_filtered (stream, "...");
830 language->la_val_print (type, valaddr, embedded_offset, address,
831 stream, recurse, val,
834 CATCH (except, RETURN_MASK_ERROR)
836 fprintf_filtered (stream, _("<error reading variable>"));
841 /* Check whether the value VAL is printable. Return 1 if it is;
842 return 0 and print an appropriate error message to STREAM according to
843 OPTIONS if it is not. */
846 value_check_printable (struct value *val, struct ui_file *stream,
847 const struct value_print_options *options)
851 fprintf_filtered (stream, _("<address of value unknown>"));
855 if (value_entirely_optimized_out (val))
857 if (options->summary && !val_print_scalar_type_p (value_type (val)))
858 fprintf_filtered (stream, "...");
860 val_print_optimized_out (val, stream);
864 if (value_entirely_unavailable (val))
866 if (options->summary && !val_print_scalar_type_p (value_type (val)))
867 fprintf_filtered (stream, "...");
869 val_print_unavailable (stream);
873 if (TYPE_CODE (value_type (val)) == TYPE_CODE_INTERNAL_FUNCTION)
875 fprintf_filtered (stream, _("<internal function %s>"),
876 value_internal_function_name (val));
883 /* Print using the given LANGUAGE the value VAL onto stream STREAM according
886 This is a preferable interface to val_print, above, because it uses
887 GDB's value mechanism. */
890 common_val_print (struct value *val, struct ui_file *stream, int recurse,
891 const struct value_print_options *options,
892 const struct language_defn *language)
894 if (!value_check_printable (val, stream, options))
897 if (language->la_language == language_ada)
898 /* The value might have a dynamic type, which would cause trouble
899 below when trying to extract the value contents (since the value
900 size is determined from the type size which is unknown). So
901 get a fixed representation of our value. */
902 val = ada_to_fixed_value (val);
904 val_print (value_type (val), value_contents_for_printing (val),
905 value_embedded_offset (val), value_address (val),
907 val, options, language);
910 /* Print on stream STREAM the value VAL according to OPTIONS. The value
911 is printed using the current_language syntax. */
914 value_print (struct value *val, struct ui_file *stream,
915 const struct value_print_options *options)
917 if (!value_check_printable (val, stream, options))
923 = apply_ext_lang_val_pretty_printer (value_type (val),
924 value_contents_for_printing (val),
925 value_embedded_offset (val),
928 val, options, current_language);
934 LA_VALUE_PRINT (val, stream, options);
937 /* Called by various <lang>_val_print routines to print
938 TYPE_CODE_INT's. TYPE is the type. VALADDR is the address of the
939 value. STREAM is where to print the value. */
942 val_print_type_code_int (struct type *type, const gdb_byte *valaddr,
943 struct ui_file *stream)
945 enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
947 if (TYPE_LENGTH (type) > sizeof (LONGEST))
951 if (TYPE_UNSIGNED (type)
952 && extract_long_unsigned_integer (valaddr, TYPE_LENGTH (type),
955 print_longest (stream, 'u', 0, val);
959 /* Signed, or we couldn't turn an unsigned value into a
960 LONGEST. For signed values, one could assume two's
961 complement (a reasonable assumption, I think) and do
963 print_hex_chars (stream, (unsigned char *) valaddr,
964 TYPE_LENGTH (type), byte_order);
969 print_longest (stream, TYPE_UNSIGNED (type) ? 'u' : 'd', 0,
970 unpack_long (type, valaddr));
975 val_print_type_code_flags (struct type *type, const gdb_byte *valaddr,
976 struct ui_file *stream)
978 ULONGEST val = unpack_long (type, valaddr);
979 int bitpos, nfields = TYPE_NFIELDS (type);
981 fputs_filtered ("[ ", stream);
982 for (bitpos = 0; bitpos < nfields; bitpos++)
984 if (TYPE_FIELD_BITPOS (type, bitpos) != -1
985 && (val & ((ULONGEST)1 << bitpos)))
987 if (TYPE_FIELD_NAME (type, bitpos))
988 fprintf_filtered (stream, "%s ", TYPE_FIELD_NAME (type, bitpos));
990 fprintf_filtered (stream, "#%d ", bitpos);
993 fputs_filtered ("]", stream);
996 /* Print a scalar of data of type TYPE, pointed to in GDB by VALADDR,
997 according to OPTIONS and SIZE on STREAM. Format i is not supported
1000 This is how the elements of an array or structure are printed
1004 val_print_scalar_formatted (struct type *type,
1005 const gdb_byte *valaddr, int embedded_offset,
1006 const struct value *val,
1007 const struct value_print_options *options,
1009 struct ui_file *stream)
1011 gdb_assert (val != NULL);
1012 gdb_assert (valaddr == value_contents_for_printing_const (val));
1014 /* If we get here with a string format, try again without it. Go
1015 all the way back to the language printers, which may call us
1017 if (options->format == 's')
1019 struct value_print_options opts = *options;
1022 val_print (type, valaddr, embedded_offset, 0, stream, 0, val, &opts,
1027 /* A scalar object that does not have all bits available can't be
1028 printed, because all bits contribute to its representation. */
1029 if (value_bits_any_optimized_out (val,
1030 TARGET_CHAR_BIT * embedded_offset,
1031 TARGET_CHAR_BIT * TYPE_LENGTH (type)))
1032 val_print_optimized_out (val, stream);
1033 else if (!value_bytes_available (val, embedded_offset, TYPE_LENGTH (type)))
1034 val_print_unavailable (stream);
1036 print_scalar_formatted (valaddr + embedded_offset, type,
1037 options, size, stream);
1040 /* Print a number according to FORMAT which is one of d,u,x,o,b,h,w,g.
1041 The raison d'etre of this function is to consolidate printing of
1042 LONG_LONG's into this one function. The format chars b,h,w,g are
1043 from print_scalar_formatted(). Numbers are printed using C
1046 USE_C_FORMAT means to use C format in all cases. Without it,
1047 'o' and 'x' format do not include the standard C radix prefix
1050 Hilfinger/2004-09-09: USE_C_FORMAT was originally called USE_LOCAL
1051 and was intended to request formating according to the current
1052 language and would be used for most integers that GDB prints. The
1053 exceptional cases were things like protocols where the format of
1054 the integer is a protocol thing, not a user-visible thing). The
1055 parameter remains to preserve the information of what things might
1056 be printed with language-specific format, should we ever resurrect
1060 print_longest (struct ui_file *stream, int format, int use_c_format,
1068 val = int_string (val_long, 10, 1, 0, 1); break;
1070 val = int_string (val_long, 10, 0, 0, 1); break;
1072 val = int_string (val_long, 16, 0, 0, use_c_format); break;
1074 val = int_string (val_long, 16, 0, 2, 1); break;
1076 val = int_string (val_long, 16, 0, 4, 1); break;
1078 val = int_string (val_long, 16, 0, 8, 1); break;
1080 val = int_string (val_long, 16, 0, 16, 1); break;
1083 val = int_string (val_long, 8, 0, 0, use_c_format); break;
1085 internal_error (__FILE__, __LINE__,
1086 _("failed internal consistency check"));
1088 fputs_filtered (val, stream);
1091 /* This used to be a macro, but I don't think it is called often enough
1092 to merit such treatment. */
1093 /* Convert a LONGEST to an int. This is used in contexts (e.g. number of
1094 arguments to a function, number in a value history, register number, etc.)
1095 where the value must not be larger than can fit in an int. */
1098 longest_to_int (LONGEST arg)
1100 /* Let the compiler do the work. */
1101 int rtnval = (int) arg;
1103 /* Check for overflows or underflows. */
1104 if (sizeof (LONGEST) > sizeof (int))
1108 error (_("Value out of range."));
1114 /* Print a floating point value of type TYPE (not always a
1115 TYPE_CODE_FLT), pointed to in GDB by VALADDR, on STREAM. */
1118 print_floating (const gdb_byte *valaddr, struct type *type,
1119 struct ui_file *stream)
1123 const struct floatformat *fmt = NULL;
1124 unsigned len = TYPE_LENGTH (type);
1125 enum float_kind kind;
1127 /* If it is a floating-point, check for obvious problems. */
1128 if (TYPE_CODE (type) == TYPE_CODE_FLT)
1129 fmt = floatformat_from_type (type);
1132 kind = floatformat_classify (fmt, valaddr);
1133 if (kind == float_nan)
1135 if (floatformat_is_negative (fmt, valaddr))
1136 fprintf_filtered (stream, "-");
1137 fprintf_filtered (stream, "nan(");
1138 fputs_filtered ("0x", stream);
1139 fputs_filtered (floatformat_mantissa (fmt, valaddr), stream);
1140 fprintf_filtered (stream, ")");
1143 else if (kind == float_infinite)
1145 if (floatformat_is_negative (fmt, valaddr))
1146 fputs_filtered ("-", stream);
1147 fputs_filtered ("inf", stream);
1152 /* NOTE: cagney/2002-01-15: The TYPE passed into print_floating()
1153 isn't necessarily a TYPE_CODE_FLT. Consequently, unpack_double
1154 needs to be used as that takes care of any necessary type
1155 conversions. Such conversions are of course direct to DOUBLEST
1156 and disregard any possible target floating point limitations.
1157 For instance, a u64 would be converted and displayed exactly on a
1158 host with 80 bit DOUBLEST but with loss of information on a host
1159 with 64 bit DOUBLEST. */
1161 doub = unpack_double (type, valaddr, &inv);
1164 fprintf_filtered (stream, "<invalid float value>");
1168 /* FIXME: kettenis/2001-01-20: The following code makes too much
1169 assumptions about the host and target floating point format. */
1171 /* NOTE: cagney/2002-02-03: Since the TYPE of what was passed in may
1172 not necessarily be a TYPE_CODE_FLT, the below ignores that and
1173 instead uses the type's length to determine the precision of the
1174 floating-point value being printed. */
1176 if (len < sizeof (double))
1177 fprintf_filtered (stream, "%.9g", (double) doub);
1178 else if (len == sizeof (double))
1179 fprintf_filtered (stream, "%.17g", (double) doub);
1181 #ifdef PRINTF_HAS_LONG_DOUBLE
1182 fprintf_filtered (stream, "%.35Lg", doub);
1184 /* This at least wins with values that are representable as
1186 fprintf_filtered (stream, "%.17g", (double) doub);
1191 print_decimal_floating (const gdb_byte *valaddr, struct type *type,
1192 struct ui_file *stream)
1194 enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
1195 char decstr[MAX_DECIMAL_STRING];
1196 unsigned len = TYPE_LENGTH (type);
1198 decimal_to_string (valaddr, len, byte_order, decstr);
1199 fputs_filtered (decstr, stream);
1204 print_binary_chars (struct ui_file *stream, const gdb_byte *valaddr,
1205 unsigned len, enum bfd_endian byte_order)
1208 #define BITS_IN_BYTES 8
1214 /* Declared "int" so it will be signed.
1215 This ensures that right shift will shift in zeros. */
1217 const int mask = 0x080;
1219 /* FIXME: We should be not printing leading zeroes in most cases. */
1221 if (byte_order == BFD_ENDIAN_BIG)
1227 /* Every byte has 8 binary characters; peel off
1228 and print from the MSB end. */
1230 for (i = 0; i < (BITS_IN_BYTES * sizeof (*p)); i++)
1232 if (*p & (mask >> i))
1237 fprintf_filtered (stream, "%1d", b);
1243 for (p = valaddr + len - 1;
1247 for (i = 0; i < (BITS_IN_BYTES * sizeof (*p)); i++)
1249 if (*p & (mask >> i))
1254 fprintf_filtered (stream, "%1d", b);
1260 /* VALADDR points to an integer of LEN bytes.
1261 Print it in octal on stream or format it in buf. */
1264 print_octal_chars (struct ui_file *stream, const gdb_byte *valaddr,
1265 unsigned len, enum bfd_endian byte_order)
1268 unsigned char octa1, octa2, octa3, carry;
1271 /* FIXME: We should be not printing leading zeroes in most cases. */
1274 /* Octal is 3 bits, which doesn't fit. Yuk. So we have to track
1275 * the extra bits, which cycle every three bytes:
1277 * Byte side: 0 1 2 3
1279 * bit number 123 456 78 | 9 012 345 6 | 78 901 234 | 567 890 12 |
1281 * Octal side: 0 1 carry 3 4 carry ...
1283 * Cycle number: 0 1 2
1285 * But of course we are printing from the high side, so we have to
1286 * figure out where in the cycle we are so that we end up with no
1287 * left over bits at the end.
1289 #define BITS_IN_OCTAL 3
1290 #define HIGH_ZERO 0340
1291 #define LOW_ZERO 0016
1292 #define CARRY_ZERO 0003
1293 #define HIGH_ONE 0200
1294 #define MID_ONE 0160
1295 #define LOW_ONE 0016
1296 #define CARRY_ONE 0001
1297 #define HIGH_TWO 0300
1298 #define MID_TWO 0070
1299 #define LOW_TWO 0007
1301 /* For 32 we start in cycle 2, with two bits and one bit carry;
1302 for 64 in cycle in cycle 1, with one bit and a two bit carry. */
1304 cycle = (len * BITS_IN_BYTES) % BITS_IN_OCTAL;
1307 fputs_filtered ("0", stream);
1308 if (byte_order == BFD_ENDIAN_BIG)
1317 /* No carry in, carry out two bits. */
1319 octa1 = (HIGH_ZERO & *p) >> 5;
1320 octa2 = (LOW_ZERO & *p) >> 2;
1321 carry = (CARRY_ZERO & *p);
1322 fprintf_filtered (stream, "%o", octa1);
1323 fprintf_filtered (stream, "%o", octa2);
1327 /* Carry in two bits, carry out one bit. */
1329 octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7);
1330 octa2 = (MID_ONE & *p) >> 4;
1331 octa3 = (LOW_ONE & *p) >> 1;
1332 carry = (CARRY_ONE & *p);
1333 fprintf_filtered (stream, "%o", octa1);
1334 fprintf_filtered (stream, "%o", octa2);
1335 fprintf_filtered (stream, "%o", octa3);
1339 /* Carry in one bit, no carry out. */
1341 octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6);
1342 octa2 = (MID_TWO & *p) >> 3;
1343 octa3 = (LOW_TWO & *p);
1345 fprintf_filtered (stream, "%o", octa1);
1346 fprintf_filtered (stream, "%o", octa2);
1347 fprintf_filtered (stream, "%o", octa3);
1351 error (_("Internal error in octal conversion;"));
1355 cycle = cycle % BITS_IN_OCTAL;
1360 for (p = valaddr + len - 1;
1367 /* Carry out, no carry in */
1369 octa1 = (HIGH_ZERO & *p) >> 5;
1370 octa2 = (LOW_ZERO & *p) >> 2;
1371 carry = (CARRY_ZERO & *p);
1372 fprintf_filtered (stream, "%o", octa1);
1373 fprintf_filtered (stream, "%o", octa2);
1377 /* Carry in, carry out */
1379 octa1 = (carry << 1) | ((HIGH_ONE & *p) >> 7);
1380 octa2 = (MID_ONE & *p) >> 4;
1381 octa3 = (LOW_ONE & *p) >> 1;
1382 carry = (CARRY_ONE & *p);
1383 fprintf_filtered (stream, "%o", octa1);
1384 fprintf_filtered (stream, "%o", octa2);
1385 fprintf_filtered (stream, "%o", octa3);
1389 /* Carry in, no carry out */
1391 octa1 = (carry << 2) | ((HIGH_TWO & *p) >> 6);
1392 octa2 = (MID_TWO & *p) >> 3;
1393 octa3 = (LOW_TWO & *p);
1395 fprintf_filtered (stream, "%o", octa1);
1396 fprintf_filtered (stream, "%o", octa2);
1397 fprintf_filtered (stream, "%o", octa3);
1401 error (_("Internal error in octal conversion;"));
1405 cycle = cycle % BITS_IN_OCTAL;
1411 /* VALADDR points to an integer of LEN bytes.
1412 Print it in decimal on stream or format it in buf. */
1415 print_decimal_chars (struct ui_file *stream, const gdb_byte *valaddr,
1416 unsigned len, enum bfd_endian byte_order)
1419 #define CARRY_OUT( x ) ((x) / TEN) /* extend char to int */
1420 #define CARRY_LEFT( x ) ((x) % TEN)
1421 #define SHIFT( x ) ((x) << 4)
1422 #define LOW_NIBBLE( x ) ( (x) & 0x00F)
1423 #define HIGH_NIBBLE( x ) (((x) & 0x0F0) >> 4)
1426 unsigned char *digits;
1429 int i, j, decimal_digits;
1433 /* Base-ten number is less than twice as many digits
1434 as the base 16 number, which is 2 digits per byte. */
1436 decimal_len = len * 2 * 2;
1437 digits = xmalloc (decimal_len);
1439 for (i = 0; i < decimal_len; i++)
1444 /* Ok, we have an unknown number of bytes of data to be printed in
1447 * Given a hex number (in nibbles) as XYZ, we start by taking X and
1448 * decemalizing it as "x1 x2" in two decimal nibbles. Then we multiply
1449 * the nibbles by 16, add Y and re-decimalize. Repeat with Z.
1451 * The trick is that "digits" holds a base-10 number, but sometimes
1452 * the individual digits are > 10.
1454 * Outer loop is per nibble (hex digit) of input, from MSD end to
1457 decimal_digits = 0; /* Number of decimal digits so far */
1458 p = (byte_order == BFD_ENDIAN_BIG) ? valaddr : valaddr + len - 1;
1460 while ((byte_order == BFD_ENDIAN_BIG) ? (p < valaddr + len) : (p >= valaddr))
1463 * Multiply current base-ten number by 16 in place.
1464 * Each digit was between 0 and 9, now is between
1467 for (j = 0; j < decimal_digits; j++)
1469 digits[j] = SHIFT (digits[j]);
1472 /* Take the next nibble off the input and add it to what
1473 * we've got in the LSB position. Bottom 'digit' is now
1474 * between 0 and 159.
1476 * "flip" is used to run this loop twice for each byte.
1480 /* Take top nibble. */
1482 digits[0] += HIGH_NIBBLE (*p);
1487 /* Take low nibble and bump our pointer "p". */
1489 digits[0] += LOW_NIBBLE (*p);
1490 if (byte_order == BFD_ENDIAN_BIG)
1497 /* Re-decimalize. We have to do this often enough
1498 * that we don't overflow, but once per nibble is
1499 * overkill. Easier this way, though. Note that the
1500 * carry is often larger than 10 (e.g. max initial
1501 * carry out of lowest nibble is 15, could bubble all
1502 * the way up greater than 10). So we have to do
1503 * the carrying beyond the last current digit.
1506 for (j = 0; j < decimal_len - 1; j++)
1510 /* "/" won't handle an unsigned char with
1511 * a value that if signed would be negative.
1512 * So extend to longword int via "dummy".
1515 carry = CARRY_OUT (dummy);
1516 digits[j] = CARRY_LEFT (dummy);
1518 if (j >= decimal_digits && carry == 0)
1521 * All higher digits are 0 and we
1522 * no longer have a carry.
1524 * Note: "j" is 0-based, "decimal_digits" is
1527 decimal_digits = j + 1;
1533 /* Ok, now "digits" is the decimal representation, with
1534 the "decimal_digits" actual digits. Print! */
1536 for (i = decimal_digits - 1; i >= 0; i--)
1538 fprintf_filtered (stream, "%1d", digits[i]);
1543 /* VALADDR points to an integer of LEN bytes. Print it in hex on stream. */
1546 print_hex_chars (struct ui_file *stream, const gdb_byte *valaddr,
1547 unsigned len, enum bfd_endian byte_order)
1551 /* FIXME: We should be not printing leading zeroes in most cases. */
1553 fputs_filtered ("0x", stream);
1554 if (byte_order == BFD_ENDIAN_BIG)
1560 fprintf_filtered (stream, "%02x", *p);
1565 for (p = valaddr + len - 1;
1569 fprintf_filtered (stream, "%02x", *p);
1574 /* VALADDR points to a char integer of LEN bytes.
1575 Print it out in appropriate language form on stream.
1576 Omit any leading zero chars. */
1579 print_char_chars (struct ui_file *stream, struct type *type,
1580 const gdb_byte *valaddr,
1581 unsigned len, enum bfd_endian byte_order)
1585 if (byte_order == BFD_ENDIAN_BIG)
1588 while (p < valaddr + len - 1 && *p == 0)
1591 while (p < valaddr + len)
1593 LA_EMIT_CHAR (*p, type, stream, '\'');
1599 p = valaddr + len - 1;
1600 while (p > valaddr && *p == 0)
1603 while (p >= valaddr)
1605 LA_EMIT_CHAR (*p, type, stream, '\'');
1611 /* Print function pointer with inferior address ADDRESS onto stdio
1615 print_function_pointer_address (const struct value_print_options *options,
1616 struct gdbarch *gdbarch,
1618 struct ui_file *stream)
1621 = gdbarch_convert_from_func_ptr_addr (gdbarch, address,
1624 /* If the function pointer is represented by a description, print
1625 the address of the description. */
1626 if (options->addressprint && func_addr != address)
1628 fputs_filtered ("@", stream);
1629 fputs_filtered (paddress (gdbarch, address), stream);
1630 fputs_filtered (": ", stream);
1632 print_address_demangle (options, gdbarch, func_addr, stream, demangle);
1636 /* Print on STREAM using the given OPTIONS the index for the element
1637 at INDEX of an array whose index type is INDEX_TYPE. */
1640 maybe_print_array_index (struct type *index_type, LONGEST index,
1641 struct ui_file *stream,
1642 const struct value_print_options *options)
1644 struct value *index_value;
1646 if (!options->print_array_indexes)
1649 index_value = value_from_longest (index_type, index);
1651 LA_PRINT_ARRAY_INDEX (index_value, stream, options);
1654 /* Called by various <lang>_val_print routines to print elements of an
1655 array in the form "<elem1>, <elem2>, <elem3>, ...".
1657 (FIXME?) Assumes array element separator is a comma, which is correct
1658 for all languages currently handled.
1659 (FIXME?) Some languages have a notation for repeated array elements,
1660 perhaps we should try to use that notation when appropriate. */
1663 val_print_array_elements (struct type *type,
1664 const gdb_byte *valaddr, int embedded_offset,
1665 CORE_ADDR address, struct ui_file *stream,
1667 const struct value *val,
1668 const struct value_print_options *options,
1671 unsigned int things_printed = 0;
1673 struct type *elttype, *index_type, *base_index_type;
1675 /* Position of the array element we are examining to see
1676 whether it is repeated. */
1678 /* Number of repetitions we have detected so far. */
1680 LONGEST low_bound, high_bound;
1681 LONGEST low_pos, high_pos;
1683 elttype = TYPE_TARGET_TYPE (type);
1684 eltlen = TYPE_LENGTH (check_typedef (elttype));
1685 index_type = TYPE_INDEX_TYPE (type);
1687 if (get_array_bounds (type, &low_bound, &high_bound))
1689 if (TYPE_CODE (index_type) == TYPE_CODE_RANGE)
1690 base_index_type = TYPE_TARGET_TYPE (index_type);
1692 base_index_type = index_type;
1694 /* Non-contiguous enumerations types can by used as index types
1695 in some languages (e.g. Ada). In this case, the array length
1696 shall be computed from the positions of the first and last
1697 literal in the enumeration type, and not from the values
1698 of these literals. */
1699 if (!discrete_position (base_index_type, low_bound, &low_pos)
1700 || !discrete_position (base_index_type, high_bound, &high_pos))
1702 warning (_("unable to get positions in array, use bounds instead"));
1703 low_pos = low_bound;
1704 high_pos = high_bound;
1707 /* The array length should normally be HIGH_POS - LOW_POS + 1.
1708 But we have to be a little extra careful, because some languages
1709 such as Ada allow LOW_POS to be greater than HIGH_POS for
1710 empty arrays. In that situation, the array length is just zero,
1712 if (low_pos > high_pos)
1715 len = high_pos - low_pos + 1;
1719 warning (_("unable to get bounds of array, assuming null array"));
1724 annotate_array_section_begin (i, elttype);
1726 for (; i < len && things_printed < options->print_max; i++)
1730 if (options->prettyformat_arrays)
1732 fprintf_filtered (stream, ",\n");
1733 print_spaces_filtered (2 + 2 * recurse, stream);
1737 fprintf_filtered (stream, ", ");
1740 wrap_here (n_spaces (2 + 2 * recurse));
1741 maybe_print_array_index (index_type, i + low_bound,
1746 /* Only check for reps if repeat_count_threshold is not set to
1747 UINT_MAX (unlimited). */
1748 if (options->repeat_count_threshold < UINT_MAX)
1751 && value_contents_eq (val,
1752 embedded_offset + i * eltlen,
1763 if (reps > options->repeat_count_threshold)
1765 val_print (elttype, valaddr, embedded_offset + i * eltlen,
1766 address, stream, recurse + 1, val, options,
1768 annotate_elt_rep (reps);
1769 fprintf_filtered (stream, " <repeats %u times>", reps);
1770 annotate_elt_rep_end ();
1773 things_printed += options->repeat_count_threshold;
1777 val_print (elttype, valaddr, embedded_offset + i * eltlen,
1779 stream, recurse + 1, val, options, current_language);
1784 annotate_array_section_end ();
1787 fprintf_filtered (stream, "...");
1791 /* Read LEN bytes of target memory at address MEMADDR, placing the
1792 results in GDB's memory at MYADDR. Returns a count of the bytes
1793 actually read, and optionally a target_xfer_status value in the
1794 location pointed to by ERRPTR if ERRPTR is non-null. */
1796 /* FIXME: cagney/1999-10-14: Only used by val_print_string. Can this
1797 function be eliminated. */
1800 partial_memory_read (CORE_ADDR memaddr, gdb_byte *myaddr,
1801 int len, int *errptr)
1803 int nread; /* Number of bytes actually read. */
1804 int errcode; /* Error from last read. */
1806 /* First try a complete read. */
1807 errcode = target_read_memory (memaddr, myaddr, len);
1815 /* Loop, reading one byte at a time until we get as much as we can. */
1816 for (errcode = 0, nread = 0; len > 0 && errcode == 0; nread++, len--)
1818 errcode = target_read_memory (memaddr++, myaddr++, 1);
1820 /* If an error, the last read was unsuccessful, so adjust count. */
1833 /* Read a string from the inferior, at ADDR, with LEN characters of WIDTH bytes
1834 each. Fetch at most FETCHLIMIT characters. BUFFER will be set to a newly
1835 allocated buffer containing the string, which the caller is responsible to
1836 free, and BYTES_READ will be set to the number of bytes read. Returns 0 on
1837 success, or a target_xfer_status on failure.
1839 If LEN > 0, reads the lesser of LEN or FETCHLIMIT characters
1840 (including eventual NULs in the middle or end of the string).
1842 If LEN is -1, stops at the first null character (not necessarily
1843 the first null byte) up to a maximum of FETCHLIMIT characters. Set
1844 FETCHLIMIT to UINT_MAX to read as many characters as possible from
1847 Unless an exception is thrown, BUFFER will always be allocated, even on
1848 failure. In this case, some characters might have been read before the
1849 failure happened. Check BYTES_READ to recognize this situation.
1851 Note: There was a FIXME asking to make this code use target_read_string,
1852 but this function is more general (can read past null characters, up to
1853 given LEN). Besides, it is used much more often than target_read_string
1854 so it is more tested. Perhaps callers of target_read_string should use
1855 this function instead? */
1858 read_string (CORE_ADDR addr, int len, int width, unsigned int fetchlimit,
1859 enum bfd_endian byte_order, gdb_byte **buffer, int *bytes_read)
1861 int errcode; /* Errno returned from bad reads. */
1862 unsigned int nfetch; /* Chars to fetch / chars fetched. */
1863 gdb_byte *bufptr; /* Pointer to next available byte in
1865 struct cleanup *old_chain = NULL; /* Top of the old cleanup chain. */
1867 /* Loop until we either have all the characters, or we encounter
1868 some error, such as bumping into the end of the address space. */
1872 old_chain = make_cleanup (free_current_contents, buffer);
1876 /* We want fetchlimit chars, so we might as well read them all in
1878 unsigned int fetchlen = min (len, fetchlimit);
1880 *buffer = (gdb_byte *) xmalloc (fetchlen * width);
1883 nfetch = partial_memory_read (addr, bufptr, fetchlen * width, &errcode)
1885 addr += nfetch * width;
1886 bufptr += nfetch * width;
1890 unsigned long bufsize = 0;
1891 unsigned int chunksize; /* Size of each fetch, in chars. */
1892 int found_nul; /* Non-zero if we found the nul char. */
1893 gdb_byte *limit; /* First location past end of fetch buffer. */
1896 /* We are looking for a NUL terminator to end the fetching, so we
1897 might as well read in blocks that are large enough to be efficient,
1898 but not so large as to be slow if fetchlimit happens to be large.
1899 So we choose the minimum of 8 and fetchlimit. We used to use 200
1900 instead of 8 but 200 is way too big for remote debugging over a
1902 chunksize = min (8, fetchlimit);
1907 nfetch = min (chunksize, fetchlimit - bufsize);
1909 if (*buffer == NULL)
1910 *buffer = (gdb_byte *) xmalloc (nfetch * width);
1912 *buffer = (gdb_byte *) xrealloc (*buffer,
1913 (nfetch + bufsize) * width);
1915 bufptr = *buffer + bufsize * width;
1918 /* Read as much as we can. */
1919 nfetch = partial_memory_read (addr, bufptr, nfetch * width, &errcode)
1922 /* Scan this chunk for the null character that terminates the string
1923 to print. If found, we don't need to fetch any more. Note
1924 that bufptr is explicitly left pointing at the next character
1925 after the null character, or at the next character after the end
1928 limit = bufptr + nfetch * width;
1929 while (bufptr < limit)
1933 c = extract_unsigned_integer (bufptr, width, byte_order);
1938 /* We don't care about any error which happened after
1939 the NUL terminator. */
1946 while (errcode == 0 /* no error */
1947 && bufptr - *buffer < fetchlimit * width /* no overrun */
1948 && !found_nul); /* haven't found NUL yet */
1951 { /* Length of string is really 0! */
1952 /* We always allocate *buffer. */
1953 *buffer = bufptr = xmalloc (1);
1957 /* bufptr and addr now point immediately beyond the last byte which we
1958 consider part of the string (including a '\0' which ends the string). */
1959 *bytes_read = bufptr - *buffer;
1963 discard_cleanups (old_chain);
1968 /* Return true if print_wchar can display W without resorting to a
1969 numeric escape, false otherwise. */
1972 wchar_printable (gdb_wchar_t w)
1974 return (gdb_iswprint (w)
1975 || w == LCST ('\a') || w == LCST ('\b')
1976 || w == LCST ('\f') || w == LCST ('\n')
1977 || w == LCST ('\r') || w == LCST ('\t')
1978 || w == LCST ('\v'));
1981 /* A helper function that converts the contents of STRING to wide
1982 characters and then appends them to OUTPUT. */
1985 append_string_as_wide (const char *string,
1986 struct obstack *output)
1988 for (; *string; ++string)
1990 gdb_wchar_t w = gdb_btowc (*string);
1991 obstack_grow (output, &w, sizeof (gdb_wchar_t));
1995 /* Print a wide character W to OUTPUT. ORIG is a pointer to the
1996 original (target) bytes representing the character, ORIG_LEN is the
1997 number of valid bytes. WIDTH is the number of bytes in a base
1998 characters of the type. OUTPUT is an obstack to which wide
1999 characters are emitted. QUOTER is a (narrow) character indicating
2000 the style of quotes surrounding the character to be printed.
2001 NEED_ESCAPE is an in/out flag which is used to track numeric
2002 escapes across calls. */
2005 print_wchar (gdb_wint_t w, const gdb_byte *orig,
2006 int orig_len, int width,
2007 enum bfd_endian byte_order,
2008 struct obstack *output,
2009 int quoter, int *need_escapep)
2011 int need_escape = *need_escapep;
2015 /* iswprint implementation on Windows returns 1 for tab character.
2016 In order to avoid different printout on this host, we explicitly
2017 use wchar_printable function. */
2021 obstack_grow_wstr (output, LCST ("\\a"));
2024 obstack_grow_wstr (output, LCST ("\\b"));
2027 obstack_grow_wstr (output, LCST ("\\f"));
2030 obstack_grow_wstr (output, LCST ("\\n"));
2033 obstack_grow_wstr (output, LCST ("\\r"));
2036 obstack_grow_wstr (output, LCST ("\\t"));
2039 obstack_grow_wstr (output, LCST ("\\v"));
2043 if (wchar_printable (w) && (!need_escape || (!gdb_iswdigit (w)
2045 && w != LCST ('9'))))
2047 gdb_wchar_t wchar = w;
2049 if (w == gdb_btowc (quoter) || w == LCST ('\\'))
2050 obstack_grow_wstr (output, LCST ("\\"));
2051 obstack_grow (output, &wchar, sizeof (gdb_wchar_t));
2057 for (i = 0; i + width <= orig_len; i += width)
2062 value = extract_unsigned_integer (&orig[i], width,
2064 /* If the value fits in 3 octal digits, print it that
2065 way. Otherwise, print it as a hex escape. */
2067 xsnprintf (octal, sizeof (octal), "\\%.3o",
2068 (int) (value & 0777));
2070 xsnprintf (octal, sizeof (octal), "\\x%lx", (long) value);
2071 append_string_as_wide (octal, output);
2073 /* If we somehow have extra bytes, print them now. */
2074 while (i < orig_len)
2078 xsnprintf (octal, sizeof (octal), "\\%.3o", orig[i] & 0xff);
2079 append_string_as_wide (octal, output);
2090 /* Print the character C on STREAM as part of the contents of a
2091 literal string whose delimiter is QUOTER. ENCODING names the
2095 generic_emit_char (int c, struct type *type, struct ui_file *stream,
2096 int quoter, const char *encoding)
2098 enum bfd_endian byte_order
2099 = gdbarch_byte_order (get_type_arch (type));
2100 struct obstack wchar_buf, output;
2101 struct cleanup *cleanups;
2103 struct wchar_iterator *iter;
2104 int need_escape = 0;
2106 buf = alloca (TYPE_LENGTH (type));
2107 pack_long (buf, type, c);
2109 iter = make_wchar_iterator (buf, TYPE_LENGTH (type),
2110 encoding, TYPE_LENGTH (type));
2111 cleanups = make_cleanup_wchar_iterator (iter);
2113 /* This holds the printable form of the wchar_t data. */
2114 obstack_init (&wchar_buf);
2115 make_cleanup_obstack_free (&wchar_buf);
2121 const gdb_byte *buf;
2123 int print_escape = 1;
2124 enum wchar_iterate_result result;
2126 num_chars = wchar_iterate (iter, &result, &chars, &buf, &buflen);
2131 /* If all characters are printable, print them. Otherwise,
2132 we're going to have to print an escape sequence. We
2133 check all characters because we want to print the target
2134 bytes in the escape sequence, and we don't know character
2135 boundaries there. */
2139 for (i = 0; i < num_chars; ++i)
2140 if (!wchar_printable (chars[i]))
2148 for (i = 0; i < num_chars; ++i)
2149 print_wchar (chars[i], buf, buflen,
2150 TYPE_LENGTH (type), byte_order,
2151 &wchar_buf, quoter, &need_escape);
2155 /* This handles the NUM_CHARS == 0 case as well. */
2157 print_wchar (gdb_WEOF, buf, buflen, TYPE_LENGTH (type),
2158 byte_order, &wchar_buf, quoter, &need_escape);
2161 /* The output in the host encoding. */
2162 obstack_init (&output);
2163 make_cleanup_obstack_free (&output);
2165 convert_between_encodings (INTERMEDIATE_ENCODING, host_charset (),
2166 (gdb_byte *) obstack_base (&wchar_buf),
2167 obstack_object_size (&wchar_buf),
2168 sizeof (gdb_wchar_t), &output, translit_char);
2169 obstack_1grow (&output, '\0');
2171 fputs_filtered (obstack_base (&output), stream);
2173 do_cleanups (cleanups);
2176 /* Return the repeat count of the next character/byte in ITER,
2177 storing the result in VEC. */
2180 count_next_character (struct wchar_iterator *iter,
2181 VEC (converted_character_d) **vec)
2183 struct converted_character *current;
2185 if (VEC_empty (converted_character_d, *vec))
2187 struct converted_character tmp;
2191 = wchar_iterate (iter, &tmp.result, &chars, &tmp.buf, &tmp.buflen);
2192 if (tmp.num_chars > 0)
2194 gdb_assert (tmp.num_chars < MAX_WCHARS);
2195 memcpy (tmp.chars, chars, tmp.num_chars * sizeof (gdb_wchar_t));
2197 VEC_safe_push (converted_character_d, *vec, &tmp);
2200 current = VEC_last (converted_character_d, *vec);
2202 /* Count repeated characters or bytes. */
2203 current->repeat_count = 1;
2204 if (current->num_chars == -1)
2212 struct converted_character d;
2219 /* Get the next character. */
2221 = wchar_iterate (iter, &d.result, &chars, &d.buf, &d.buflen);
2223 /* If a character was successfully converted, save the character
2224 into the converted character. */
2225 if (d.num_chars > 0)
2227 gdb_assert (d.num_chars < MAX_WCHARS);
2228 memcpy (d.chars, chars, WCHAR_BUFLEN (d.num_chars));
2231 /* Determine if the current character is the same as this
2233 if (d.num_chars == current->num_chars && d.result == current->result)
2235 /* There are two cases to consider:
2237 1) Equality of converted character (num_chars > 0)
2238 2) Equality of non-converted character (num_chars == 0) */
2239 if ((current->num_chars > 0
2240 && memcmp (current->chars, d.chars,
2241 WCHAR_BUFLEN (current->num_chars)) == 0)
2242 || (current->num_chars == 0
2243 && current->buflen == d.buflen
2244 && memcmp (current->buf, d.buf, current->buflen) == 0))
2245 ++current->repeat_count;
2253 /* Push this next converted character onto the result vector. */
2254 repeat = current->repeat_count;
2255 VEC_safe_push (converted_character_d, *vec, &d);
2260 /* Print the characters in CHARS to the OBSTACK. QUOTE_CHAR is the quote
2261 character to use with string output. WIDTH is the size of the output
2262 character type. BYTE_ORDER is the the target byte order. OPTIONS
2263 is the user's print options. */
2266 print_converted_chars_to_obstack (struct obstack *obstack,
2267 VEC (converted_character_d) *chars,
2268 int quote_char, int width,
2269 enum bfd_endian byte_order,
2270 const struct value_print_options *options)
2273 struct converted_character *elem;
2274 enum {START, SINGLE, REPEAT, INCOMPLETE, FINISH} state, last;
2275 gdb_wchar_t wide_quote_char = gdb_btowc (quote_char);
2276 int need_escape = 0;
2278 /* Set the start state. */
2280 last = state = START;
2288 /* Nothing to do. */
2295 /* We are outputting a single character
2296 (< options->repeat_count_threshold). */
2300 /* We were outputting some other type of content, so we
2301 must output and a comma and a quote. */
2303 obstack_grow_wstr (obstack, LCST (", "));
2304 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
2306 /* Output the character. */
2307 for (j = 0; j < elem->repeat_count; ++j)
2309 if (elem->result == wchar_iterate_ok)
2310 print_wchar (elem->chars[0], elem->buf, elem->buflen, width,
2311 byte_order, obstack, quote_char, &need_escape);
2313 print_wchar (gdb_WEOF, elem->buf, elem->buflen, width,
2314 byte_order, obstack, quote_char, &need_escape);
2324 /* We are outputting a character with a repeat count
2325 greater than options->repeat_count_threshold. */
2329 /* We were outputting a single string. Terminate the
2331 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
2334 obstack_grow_wstr (obstack, LCST (", "));
2336 /* Output the character and repeat string. */
2337 obstack_grow_wstr (obstack, LCST ("'"));
2338 if (elem->result == wchar_iterate_ok)
2339 print_wchar (elem->chars[0], elem->buf, elem->buflen, width,
2340 byte_order, obstack, quote_char, &need_escape);
2342 print_wchar (gdb_WEOF, elem->buf, elem->buflen, width,
2343 byte_order, obstack, quote_char, &need_escape);
2344 obstack_grow_wstr (obstack, LCST ("'"));
2345 s = xstrprintf (_(" <repeats %u times>"), elem->repeat_count);
2346 for (j = 0; s[j]; ++j)
2348 gdb_wchar_t w = gdb_btowc (s[j]);
2349 obstack_grow (obstack, &w, sizeof (gdb_wchar_t));
2356 /* We are outputting an incomplete sequence. */
2359 /* If we were outputting a string of SINGLE characters,
2360 terminate the quote. */
2361 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
2364 obstack_grow_wstr (obstack, LCST (", "));
2366 /* Output the incomplete sequence string. */
2367 obstack_grow_wstr (obstack, LCST ("<incomplete sequence "));
2368 print_wchar (gdb_WEOF, elem->buf, elem->buflen, width, byte_order,
2369 obstack, 0, &need_escape);
2370 obstack_grow_wstr (obstack, LCST (">"));
2372 /* We do not attempt to outupt anything after this. */
2377 /* All done. If we were outputting a string of SINGLE
2378 characters, the string must be terminated. Otherwise,
2379 REPEAT and INCOMPLETE are always left properly terminated. */
2381 obstack_grow (obstack, &wide_quote_char, sizeof (gdb_wchar_t));
2386 /* Get the next element and state. */
2388 if (state != FINISH)
2390 elem = VEC_index (converted_character_d, chars, idx++);
2391 switch (elem->result)
2393 case wchar_iterate_ok:
2394 case wchar_iterate_invalid:
2395 if (elem->repeat_count > options->repeat_count_threshold)
2401 case wchar_iterate_incomplete:
2405 case wchar_iterate_eof:
2413 /* Print the character string STRING, printing at most LENGTH
2414 characters. LENGTH is -1 if the string is nul terminated. TYPE is
2415 the type of each character. OPTIONS holds the printing options;
2416 printing stops early if the number hits print_max; repeat counts
2417 are printed as appropriate. Print ellipses at the end if we had to
2418 stop before printing LENGTH characters, or if FORCE_ELLIPSES.
2419 QUOTE_CHAR is the character to print at each end of the string. If
2420 C_STYLE_TERMINATOR is true, and the last character is 0, then it is
2424 generic_printstr (struct ui_file *stream, struct type *type,
2425 const gdb_byte *string, unsigned int length,
2426 const char *encoding, int force_ellipses,
2427 int quote_char, int c_style_terminator,
2428 const struct value_print_options *options)
2430 enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
2432 int width = TYPE_LENGTH (type);
2433 struct obstack wchar_buf, output;
2434 struct cleanup *cleanup;
2435 struct wchar_iterator *iter;
2437 struct converted_character *last;
2438 VEC (converted_character_d) *converted_chars;
2442 unsigned long current_char = 1;
2444 for (i = 0; current_char; ++i)
2447 current_char = extract_unsigned_integer (string + i * width,
2453 /* If the string was not truncated due to `set print elements', and
2454 the last byte of it is a null, we don't print that, in
2455 traditional C style. */
2456 if (c_style_terminator
2459 && (extract_unsigned_integer (string + (length - 1) * width,
2460 width, byte_order) == 0))
2465 fputs_filtered ("\"\"", stream);
2469 /* Arrange to iterate over the characters, in wchar_t form. */
2470 iter = make_wchar_iterator (string, length * width, encoding, width);
2471 cleanup = make_cleanup_wchar_iterator (iter);
2472 converted_chars = NULL;
2473 make_cleanup (VEC_cleanup (converted_character_d), &converted_chars);
2475 /* Convert characters until the string is over or the maximum
2476 number of printed characters has been reached. */
2478 while (i < options->print_max)
2484 /* Grab the next character and repeat count. */
2485 r = count_next_character (iter, &converted_chars);
2487 /* If less than zero, the end of the input string was reached. */
2491 /* Otherwise, add the count to the total print count and get
2492 the next character. */
2496 /* Get the last element and determine if the entire string was
2498 last = VEC_last (converted_character_d, converted_chars);
2499 finished = (last->result == wchar_iterate_eof);
2501 /* Ensure that CONVERTED_CHARS is terminated. */
2502 last->result = wchar_iterate_eof;
2504 /* WCHAR_BUF is the obstack we use to represent the string in
2506 obstack_init (&wchar_buf);
2507 make_cleanup_obstack_free (&wchar_buf);
2509 /* Print the output string to the obstack. */
2510 print_converted_chars_to_obstack (&wchar_buf, converted_chars, quote_char,
2511 width, byte_order, options);
2513 if (force_ellipses || !finished)
2514 obstack_grow_wstr (&wchar_buf, LCST ("..."));
2516 /* OUTPUT is where we collect `char's for printing. */
2517 obstack_init (&output);
2518 make_cleanup_obstack_free (&output);
2520 convert_between_encodings (INTERMEDIATE_ENCODING, host_charset (),
2521 (gdb_byte *) obstack_base (&wchar_buf),
2522 obstack_object_size (&wchar_buf),
2523 sizeof (gdb_wchar_t), &output, translit_char);
2524 obstack_1grow (&output, '\0');
2526 fputs_filtered (obstack_base (&output), stream);
2528 do_cleanups (cleanup);
2531 /* Print a string from the inferior, starting at ADDR and printing up to LEN
2532 characters, of WIDTH bytes a piece, to STREAM. If LEN is -1, printing
2533 stops at the first null byte, otherwise printing proceeds (including null
2534 bytes) until either print_max or LEN characters have been printed,
2535 whichever is smaller. ENCODING is the name of the string's
2536 encoding. It can be NULL, in which case the target encoding is
2540 val_print_string (struct type *elttype, const char *encoding,
2541 CORE_ADDR addr, int len,
2542 struct ui_file *stream,
2543 const struct value_print_options *options)
2545 int force_ellipsis = 0; /* Force ellipsis to be printed if nonzero. */
2546 int errcode; /* Errno returned from bad reads. */
2547 int found_nul; /* Non-zero if we found the nul char. */
2548 unsigned int fetchlimit; /* Maximum number of chars to print. */
2550 gdb_byte *buffer = NULL; /* Dynamically growable fetch buffer. */
2551 struct cleanup *old_chain = NULL; /* Top of the old cleanup chain. */
2552 struct gdbarch *gdbarch = get_type_arch (elttype);
2553 enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
2554 int width = TYPE_LENGTH (elttype);
2556 /* First we need to figure out the limit on the number of characters we are
2557 going to attempt to fetch and print. This is actually pretty simple. If
2558 LEN >= zero, then the limit is the minimum of LEN and print_max. If
2559 LEN is -1, then the limit is print_max. This is true regardless of
2560 whether print_max is zero, UINT_MAX (unlimited), or something in between,
2561 because finding the null byte (or available memory) is what actually
2562 limits the fetch. */
2564 fetchlimit = (len == -1 ? options->print_max : min (len,
2565 options->print_max));
2567 errcode = read_string (addr, len, width, fetchlimit, byte_order,
2568 &buffer, &bytes_read);
2569 old_chain = make_cleanup (xfree, buffer);
2573 /* We now have either successfully filled the buffer to fetchlimit,
2574 or terminated early due to an error or finding a null char when
2577 /* Determine found_nul by looking at the last character read. */
2579 if (bytes_read >= width)
2580 found_nul = extract_unsigned_integer (buffer + bytes_read - width, width,
2582 if (len == -1 && !found_nul)
2586 /* We didn't find a NUL terminator we were looking for. Attempt
2587 to peek at the next character. If not successful, or it is not
2588 a null byte, then force ellipsis to be printed. */
2590 peekbuf = (gdb_byte *) alloca (width);
2592 if (target_read_memory (addr, peekbuf, width) == 0
2593 && extract_unsigned_integer (peekbuf, width, byte_order) != 0)
2596 else if ((len >= 0 && errcode != 0) || (len > bytes_read / width))
2598 /* Getting an error when we have a requested length, or fetching less
2599 than the number of characters actually requested, always make us
2604 /* If we get an error before fetching anything, don't print a string.
2605 But if we fetch something and then get an error, print the string
2606 and then the error message. */
2607 if (errcode == 0 || bytes_read > 0)
2609 LA_PRINT_STRING (stream, elttype, buffer, bytes_read / width,
2610 encoding, force_ellipsis, options);
2617 str = memory_error_message (errcode, gdbarch, addr);
2618 make_cleanup (xfree, str);
2620 fprintf_filtered (stream, "<error: ");
2621 fputs_filtered (str, stream);
2622 fprintf_filtered (stream, ">");
2626 do_cleanups (old_chain);
2628 return (bytes_read / width);
2632 /* The 'set input-radix' command writes to this auxiliary variable.
2633 If the requested radix is valid, INPUT_RADIX is updated; otherwise,
2634 it is left unchanged. */
2636 static unsigned input_radix_1 = 10;
2638 /* Validate an input or output radix setting, and make sure the user
2639 knows what they really did here. Radix setting is confusing, e.g.
2640 setting the input radix to "10" never changes it! */
2643 set_input_radix (char *args, int from_tty, struct cmd_list_element *c)
2645 set_input_radix_1 (from_tty, input_radix_1);
2649 set_input_radix_1 (int from_tty, unsigned radix)
2651 /* We don't currently disallow any input radix except 0 or 1, which don't
2652 make any mathematical sense. In theory, we can deal with any input
2653 radix greater than 1, even if we don't have unique digits for every
2654 value from 0 to radix-1, but in practice we lose on large radix values.
2655 We should either fix the lossage or restrict the radix range more.
2660 input_radix_1 = input_radix;
2661 error (_("Nonsense input radix ``decimal %u''; input radix unchanged."),
2664 input_radix_1 = input_radix = radix;
2667 printf_filtered (_("Input radix now set to "
2668 "decimal %u, hex %x, octal %o.\n"),
2669 radix, radix, radix);
2673 /* The 'set output-radix' command writes to this auxiliary variable.
2674 If the requested radix is valid, OUTPUT_RADIX is updated,
2675 otherwise, it is left unchanged. */
2677 static unsigned output_radix_1 = 10;
2680 set_output_radix (char *args, int from_tty, struct cmd_list_element *c)
2682 set_output_radix_1 (from_tty, output_radix_1);
2686 set_output_radix_1 (int from_tty, unsigned radix)
2688 /* Validate the radix and disallow ones that we aren't prepared to
2689 handle correctly, leaving the radix unchanged. */
2693 user_print_options.output_format = 'x'; /* hex */
2696 user_print_options.output_format = 0; /* decimal */
2699 user_print_options.output_format = 'o'; /* octal */
2702 output_radix_1 = output_radix;
2703 error (_("Unsupported output radix ``decimal %u''; "
2704 "output radix unchanged."),
2707 output_radix_1 = output_radix = radix;
2710 printf_filtered (_("Output radix now set to "
2711 "decimal %u, hex %x, octal %o.\n"),
2712 radix, radix, radix);
2716 /* Set both the input and output radix at once. Try to set the output radix
2717 first, since it has the most restrictive range. An radix that is valid as
2718 an output radix is also valid as an input radix.
2720 It may be useful to have an unusual input radix. If the user wishes to
2721 set an input radix that is not valid as an output radix, he needs to use
2722 the 'set input-radix' command. */
2725 set_radix (char *arg, int from_tty)
2729 radix = (arg == NULL) ? 10 : parse_and_eval_long (arg);
2730 set_output_radix_1 (0, radix);
2731 set_input_radix_1 (0, radix);
2734 printf_filtered (_("Input and output radices now set to "
2735 "decimal %u, hex %x, octal %o.\n"),
2736 radix, radix, radix);
2740 /* Show both the input and output radices. */
2743 show_radix (char *arg, int from_tty)
2747 if (input_radix == output_radix)
2749 printf_filtered (_("Input and output radices set to "
2750 "decimal %u, hex %x, octal %o.\n"),
2751 input_radix, input_radix, input_radix);
2755 printf_filtered (_("Input radix set to decimal "
2756 "%u, hex %x, octal %o.\n"),
2757 input_radix, input_radix, input_radix);
2758 printf_filtered (_("Output radix set to decimal "
2759 "%u, hex %x, octal %o.\n"),
2760 output_radix, output_radix, output_radix);
2767 set_print (char *arg, int from_tty)
2770 "\"set print\" must be followed by the name of a print subcommand.\n");
2771 help_list (setprintlist, "set print ", all_commands, gdb_stdout);
2775 show_print (char *args, int from_tty)
2777 cmd_show_list (showprintlist, from_tty, "");
2781 set_print_raw (char *arg, int from_tty)
2784 "\"set print raw\" must be followed by the name of a \"print raw\" subcommand.\n");
2785 help_list (setprintrawlist, "set print raw ", all_commands, gdb_stdout);
2789 show_print_raw (char *args, int from_tty)
2791 cmd_show_list (showprintrawlist, from_tty, "");
2796 _initialize_valprint (void)
2798 add_prefix_cmd ("print", no_class, set_print,
2799 _("Generic command for setting how things print."),
2800 &setprintlist, "set print ", 0, &setlist);
2801 add_alias_cmd ("p", "print", no_class, 1, &setlist);
2802 /* Prefer set print to set prompt. */
2803 add_alias_cmd ("pr", "print", no_class, 1, &setlist);
2805 add_prefix_cmd ("print", no_class, show_print,
2806 _("Generic command for showing print settings."),
2807 &showprintlist, "show print ", 0, &showlist);
2808 add_alias_cmd ("p", "print", no_class, 1, &showlist);
2809 add_alias_cmd ("pr", "print", no_class, 1, &showlist);
2811 add_prefix_cmd ("raw", no_class, set_print_raw,
2813 Generic command for setting what things to print in \"raw\" mode."),
2814 &setprintrawlist, "set print raw ", 0, &setprintlist);
2815 add_prefix_cmd ("raw", no_class, show_print_raw,
2816 _("Generic command for showing \"print raw\" settings."),
2817 &showprintrawlist, "show print raw ", 0, &showprintlist);
2819 add_setshow_uinteger_cmd ("elements", no_class,
2820 &user_print_options.print_max, _("\
2821 Set limit on string chars or array elements to print."), _("\
2822 Show limit on string chars or array elements to print."), _("\
2823 \"set print elements unlimited\" causes there to be no limit."),
2826 &setprintlist, &showprintlist);
2828 add_setshow_boolean_cmd ("null-stop", no_class,
2829 &user_print_options.stop_print_at_null, _("\
2830 Set printing of char arrays to stop at first null char."), _("\
2831 Show printing of char arrays to stop at first null char."), NULL,
2833 show_stop_print_at_null,
2834 &setprintlist, &showprintlist);
2836 add_setshow_uinteger_cmd ("repeats", no_class,
2837 &user_print_options.repeat_count_threshold, _("\
2838 Set threshold for repeated print elements."), _("\
2839 Show threshold for repeated print elements."), _("\
2840 \"set print repeats unlimited\" causes all elements to be individually printed."),
2842 show_repeat_count_threshold,
2843 &setprintlist, &showprintlist);
2845 add_setshow_boolean_cmd ("pretty", class_support,
2846 &user_print_options.prettyformat_structs, _("\
2847 Set pretty formatting of structures."), _("\
2848 Show pretty formatting of structures."), NULL,
2850 show_prettyformat_structs,
2851 &setprintlist, &showprintlist);
2853 add_setshow_boolean_cmd ("union", class_support,
2854 &user_print_options.unionprint, _("\
2855 Set printing of unions interior to structures."), _("\
2856 Show printing of unions interior to structures."), NULL,
2859 &setprintlist, &showprintlist);
2861 add_setshow_boolean_cmd ("array", class_support,
2862 &user_print_options.prettyformat_arrays, _("\
2863 Set pretty formatting of arrays."), _("\
2864 Show pretty formatting of arrays."), NULL,
2866 show_prettyformat_arrays,
2867 &setprintlist, &showprintlist);
2869 add_setshow_boolean_cmd ("address", class_support,
2870 &user_print_options.addressprint, _("\
2871 Set printing of addresses."), _("\
2872 Show printing of addresses."), NULL,
2875 &setprintlist, &showprintlist);
2877 add_setshow_boolean_cmd ("symbol", class_support,
2878 &user_print_options.symbol_print, _("\
2879 Set printing of symbol names when printing pointers."), _("\
2880 Show printing of symbol names when printing pointers."),
2883 &setprintlist, &showprintlist);
2885 add_setshow_zuinteger_cmd ("input-radix", class_support, &input_radix_1,
2887 Set default input radix for entering numbers."), _("\
2888 Show default input radix for entering numbers."), NULL,
2891 &setlist, &showlist);
2893 add_setshow_zuinteger_cmd ("output-radix", class_support, &output_radix_1,
2895 Set default output radix for printing of values."), _("\
2896 Show default output radix for printing of values."), NULL,
2899 &setlist, &showlist);
2901 /* The "set radix" and "show radix" commands are special in that
2902 they are like normal set and show commands but allow two normally
2903 independent variables to be either set or shown with a single
2904 command. So the usual deprecated_add_set_cmd() and [deleted]
2905 add_show_from_set() commands aren't really appropriate. */
2906 /* FIXME: i18n: With the new add_setshow_integer command, that is no
2907 longer true - show can display anything. */
2908 add_cmd ("radix", class_support, set_radix, _("\
2909 Set default input and output number radices.\n\
2910 Use 'set input-radix' or 'set output-radix' to independently set each.\n\
2911 Without an argument, sets both radices back to the default value of 10."),
2913 add_cmd ("radix", class_support, show_radix, _("\
2914 Show the default input and output number radices.\n\
2915 Use 'show input-radix' or 'show output-radix' to independently show each."),
2918 add_setshow_boolean_cmd ("array-indexes", class_support,
2919 &user_print_options.print_array_indexes, _("\
2920 Set printing of array indexes."), _("\
2921 Show printing of array indexes"), NULL, NULL, show_print_array_indexes,
2922 &setprintlist, &showprintlist);