1 /* Support for printing Ada values for GDB, the GNU debugger.
3 Copyright (C) 1986-2014 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
25 #include "expression.h"
34 #include "exceptions.h"
37 static int print_field_values (struct type *, const gdb_byte *,
39 struct ui_file *, int,
41 const struct value_print_options *,
42 int, struct type *, int);
45 /* Make TYPE unsigned if its range of values includes no negatives. */
47 adjust_type_signedness (struct type *type)
49 if (type != NULL && TYPE_CODE (type) == TYPE_CODE_RANGE
50 && TYPE_LOW_BOUND (type) >= 0)
51 TYPE_UNSIGNED (type) = 1;
54 /* Assuming TYPE is a simple array type, prints its lower bound on STREAM,
55 if non-standard (i.e., other than 1 for numbers, other than lower bound
56 of index type for enumerated type). Returns 1 if something printed,
60 print_optional_low_bound (struct ui_file *stream, struct type *type,
61 const struct value_print_options *options)
63 struct type *index_type;
67 if (options->print_array_indexes)
70 if (!get_array_bounds (type, &low_bound, &high_bound))
73 /* If this is an empty array, then don't print the lower bound.
74 That would be confusing, because we would print the lower bound,
75 followed by... nothing! */
76 if (low_bound > high_bound)
79 index_type = TYPE_INDEX_TYPE (type);
81 if (TYPE_CODE (index_type) == TYPE_CODE_RANGE)
83 /* We need to know what the base type is, in order to do the
84 appropriate check below. Otherwise, if this is a subrange
85 of an enumerated type, where the underlying value of the
86 first element is typically 0, we might test the low bound
87 against the wrong value. */
88 index_type = TYPE_TARGET_TYPE (index_type);
91 switch (TYPE_CODE (index_type))
98 if (low_bound == TYPE_FIELD_ENUMVAL (index_type, 0))
101 case TYPE_CODE_UNDEF:
110 ada_print_scalar (index_type, low_bound, stream);
111 fprintf_filtered (stream, " => ");
115 /* Version of val_print_array_elements for GNAT-style packed arrays.
116 Prints elements of packed array of type TYPE at bit offset
117 BITOFFSET from VALADDR on STREAM. Formats according to OPTIONS and
118 separates with commas. RECURSE is the recursion (nesting) level.
119 TYPE must have been decoded (as by ada_coerce_to_simple_array). */
122 val_print_packed_array_elements (struct type *type, const gdb_byte *valaddr,
124 int bitoffset, struct ui_file *stream,
126 const struct value *val,
127 const struct value_print_options *options)
130 unsigned int things_printed = 0;
132 struct type *elttype, *index_type;
134 unsigned long bitsize = TYPE_FIELD_BITSIZE (type, 0);
135 struct value *mark = value_mark ();
138 elttype = TYPE_TARGET_TYPE (type);
139 eltlen = TYPE_LENGTH (check_typedef (elttype));
140 index_type = TYPE_INDEX_TYPE (type);
145 if (get_discrete_bounds (index_type, &low, &high) < 0)
148 len = high - low + 1;
152 annotate_array_section_begin (i, elttype);
154 while (i < len && things_printed < options->print_max)
156 struct value *v0, *v1;
161 if (options->prettyformat_arrays)
163 fprintf_filtered (stream, ",\n");
164 print_spaces_filtered (2 + 2 * recurse, stream);
168 fprintf_filtered (stream, ", ");
171 wrap_here (n_spaces (2 + 2 * recurse));
172 maybe_print_array_index (index_type, i + low, stream, options);
175 v0 = ada_value_primitive_packed_val (NULL, valaddr + offset,
176 (i0 * bitsize) / HOST_CHAR_BIT,
177 (i0 * bitsize) % HOST_CHAR_BIT,
184 v1 = ada_value_primitive_packed_val (NULL, valaddr + offset,
185 (i * bitsize) / HOST_CHAR_BIT,
186 (i * bitsize) % HOST_CHAR_BIT,
188 if (!value_available_contents_eq (v0, value_embedded_offset (v0),
189 v1, value_embedded_offset (v1),
194 if (i - i0 > options->repeat_count_threshold)
196 struct value_print_options opts = *options;
199 val_print (elttype, value_contents_for_printing (v0),
200 value_embedded_offset (v0), 0, stream,
201 recurse + 1, v0, &opts, current_language);
202 annotate_elt_rep (i - i0);
203 fprintf_filtered (stream, _(" <repeats %u times>"), i - i0);
204 annotate_elt_rep_end ();
210 struct value_print_options opts = *options;
213 for (j = i0; j < i; j += 1)
217 if (options->prettyformat_arrays)
219 fprintf_filtered (stream, ",\n");
220 print_spaces_filtered (2 + 2 * recurse, stream);
224 fprintf_filtered (stream, ", ");
226 wrap_here (n_spaces (2 + 2 * recurse));
227 maybe_print_array_index (index_type, j + low,
230 val_print (elttype, value_contents_for_printing (v0),
231 value_embedded_offset (v0), 0, stream,
232 recurse + 1, v0, &opts, current_language);
236 things_printed += i - i0;
238 annotate_array_section_end ();
241 fprintf_filtered (stream, "...");
244 value_free_to_mark (mark);
248 printable_val_type (struct type *type, const gdb_byte *valaddr)
250 return ada_to_fixed_type (ada_aligned_type (type), valaddr, 0, NULL, 1);
253 /* Print the character C on STREAM as part of the contents of a literal
254 string whose delimiter is QUOTER. TYPE_LEN is the length in bytes
258 ada_emit_char (int c, struct type *type, struct ui_file *stream,
259 int quoter, int type_len)
261 /* If this character fits in the normal ASCII range, and is
262 a printable character, then print the character as if it was
263 an ASCII character, even if this is a wide character.
264 The UCHAR_MAX check is necessary because the isascii function
265 requires that its argument have a value of an unsigned char,
266 or EOF (EOF is obviously not printable). */
267 if (c <= UCHAR_MAX && isascii (c) && isprint (c))
269 if (c == quoter && c == '"')
270 fprintf_filtered (stream, "\"\"");
272 fprintf_filtered (stream, "%c", c);
275 fprintf_filtered (stream, "[\"%0*x\"]", type_len * 2, c);
278 /* Character #I of STRING, given that TYPE_LEN is the size in bytes
282 char_at (const gdb_byte *string, int i, int type_len,
283 enum bfd_endian byte_order)
288 return (int) extract_unsigned_integer (string + type_len * i,
289 type_len, byte_order);
292 /* Wrapper around memcpy to make it legal argument to ui_file_put. */
294 ui_memcpy (void *dest, const char *buffer, long len)
296 memcpy (dest, buffer, (size_t) len);
297 ((char *) dest)[len] = '\0';
300 /* Print a floating-point value of type TYPE, pointed to in GDB by
301 VALADDR, on STREAM. Use Ada formatting conventions: there must be
302 a decimal point, and at least one digit before and after the
303 point. We use GNAT format for NaNs and infinities. */
305 ada_print_floating (const gdb_byte *valaddr, struct type *type,
306 struct ui_file *stream)
310 struct ui_file *tmp_stream = mem_fileopen ();
311 struct cleanup *cleanups = make_cleanup_ui_file_delete (tmp_stream);
313 print_floating (valaddr, type, tmp_stream);
314 ui_file_put (tmp_stream, ui_memcpy, buffer);
315 do_cleanups (cleanups);
319 /* Modify for Ada rules. */
321 s = strstr (result, "inf");
323 s = strstr (result, "Inf");
325 s = strstr (result, "INF");
331 s = strstr (result, "nan");
333 s = strstr (result, "NaN");
335 s = strstr (result, "Nan");
339 if (result[0] == '-')
344 if (s == NULL && strchr (result, '.') == NULL)
346 s = strchr (result, 'e');
348 fprintf_filtered (stream, "%s.0", result);
350 fprintf_filtered (stream, "%.*s.0%s", (int) (s-result), result, s);
353 fprintf_filtered (stream, "%s", result);
357 ada_printchar (int c, struct type *type, struct ui_file *stream)
359 fputs_filtered ("'", stream);
360 ada_emit_char (c, type, stream, '\'', TYPE_LENGTH (type));
361 fputs_filtered ("'", stream);
364 /* [From print_type_scalar in typeprint.c]. Print VAL on STREAM in a
365 form appropriate for TYPE, if non-NULL. If TYPE is NULL, print VAL
366 like a default signed integer. */
369 ada_print_scalar (struct type *type, LONGEST val, struct ui_file *stream)
376 print_longest (stream, 'd', 0, val);
380 type = ada_check_typedef (type);
382 switch (TYPE_CODE (type))
386 len = TYPE_NFIELDS (type);
387 for (i = 0; i < len; i++)
389 if (TYPE_FIELD_ENUMVAL (type, i) == val)
396 fputs_filtered (ada_enum_name (TYPE_FIELD_NAME (type, i)), stream);
400 print_longest (stream, 'd', 0, val);
405 print_longest (stream, TYPE_UNSIGNED (type) ? 'u' : 'd', 0, val);
409 LA_PRINT_CHAR (val, type, stream);
413 fprintf_filtered (stream, val ? "true" : "false");
416 case TYPE_CODE_RANGE:
417 ada_print_scalar (TYPE_TARGET_TYPE (type), val, stream);
420 case TYPE_CODE_UNDEF:
422 case TYPE_CODE_ARRAY:
423 case TYPE_CODE_STRUCT:
424 case TYPE_CODE_UNION:
429 case TYPE_CODE_STRING:
430 case TYPE_CODE_ERROR:
431 case TYPE_CODE_MEMBERPTR:
432 case TYPE_CODE_METHODPTR:
433 case TYPE_CODE_METHOD:
435 warning (_("internal error: unhandled type in ada_print_scalar"));
439 error (_("Invalid type code in symbol table."));
444 /* Print the character string STRING, printing at most LENGTH characters.
445 Printing stops early if the number hits print_max; repeat counts
446 are printed as appropriate. Print ellipses at the end if we
447 had to stop before printing LENGTH characters, or if FORCE_ELLIPSES.
448 TYPE_LEN is the length (1 or 2) of the character type. */
451 printstr (struct ui_file *stream, struct type *elttype, const gdb_byte *string,
452 unsigned int length, int force_ellipses, int type_len,
453 const struct value_print_options *options)
455 enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (elttype));
457 unsigned int things_printed = 0;
463 fputs_filtered ("\"\"", stream);
467 for (i = 0; i < length && things_printed < options->print_max; i += 1)
469 /* Position of the character we are examining
470 to see whether it is repeated. */
472 /* Number of repetitions we have detected so far. */
479 fputs_filtered (", ", stream);
486 && char_at (string, rep1, type_len, byte_order)
487 == char_at (string, i, type_len, byte_order))
493 if (reps > options->repeat_count_threshold)
497 fputs_filtered ("\", ", stream);
500 fputs_filtered ("'", stream);
501 ada_emit_char (char_at (string, i, type_len, byte_order),
502 elttype, stream, '\'', type_len);
503 fputs_filtered ("'", stream);
504 fprintf_filtered (stream, _(" <repeats %u times>"), reps);
506 things_printed += options->repeat_count_threshold;
513 fputs_filtered ("\"", stream);
516 ada_emit_char (char_at (string, i, type_len, byte_order),
517 elttype, stream, '"', type_len);
522 /* Terminate the quotes if necessary. */
524 fputs_filtered ("\"", stream);
526 if (force_ellipses || i < length)
527 fputs_filtered ("...", stream);
531 ada_printstr (struct ui_file *stream, struct type *type,
532 const gdb_byte *string, unsigned int length,
533 const char *encoding, int force_ellipses,
534 const struct value_print_options *options)
536 printstr (stream, type, string, length, force_ellipses, TYPE_LENGTH (type),
541 print_variant_part (struct type *type, int field_num,
542 const gdb_byte *valaddr, int offset,
543 struct ui_file *stream, int recurse,
544 const struct value *val,
545 const struct value_print_options *options,
547 struct type *outer_type, int outer_offset)
549 struct type *var_type = TYPE_FIELD_TYPE (type, field_num);
550 int which = ada_which_variant_applies (var_type, outer_type,
551 valaddr + outer_offset);
556 return print_field_values
557 (TYPE_FIELD_TYPE (var_type, which),
559 offset + TYPE_FIELD_BITPOS (type, field_num) / HOST_CHAR_BIT
560 + TYPE_FIELD_BITPOS (var_type, which) / HOST_CHAR_BIT,
561 stream, recurse, val, options,
562 comma_needed, outer_type, outer_offset);
565 /* Print out fields of value at VALADDR + OFFSET having structure type TYPE.
567 TYPE, VALADDR, OFFSET, STREAM, RECURSE, and OPTIONS have the same
568 meanings as in ada_print_value and ada_val_print.
570 OUTER_TYPE and OUTER_OFFSET give type and address of enclosing
571 record (used to get discriminant values when printing variant
574 COMMA_NEEDED is 1 if fields have been printed at the current recursion
575 level, so that a comma is needed before any field printed by this
578 Returns 1 if COMMA_NEEDED or any fields were printed. */
581 print_field_values (struct type *type, const gdb_byte *valaddr,
582 int offset, struct ui_file *stream, int recurse,
583 const struct value *val,
584 const struct value_print_options *options,
586 struct type *outer_type, int outer_offset)
590 len = TYPE_NFIELDS (type);
592 for (i = 0; i < len; i += 1)
594 if (ada_is_ignored_field (type, i))
597 if (ada_is_wrapper_field (type, i))
600 print_field_values (TYPE_FIELD_TYPE (type, i),
603 + TYPE_FIELD_BITPOS (type, i) / HOST_CHAR_BIT),
604 stream, recurse, val, options,
605 comma_needed, type, offset);
608 else if (ada_is_variant_part (type, i))
611 print_variant_part (type, i, valaddr,
612 offset, stream, recurse, val,
613 options, comma_needed,
614 outer_type, outer_offset);
619 fprintf_filtered (stream, ", ");
622 if (options->prettyformat)
624 fprintf_filtered (stream, "\n");
625 print_spaces_filtered (2 + 2 * recurse, stream);
629 wrap_here (n_spaces (2 + 2 * recurse));
632 annotate_field_begin (TYPE_FIELD_TYPE (type, i));
633 fprintf_filtered (stream, "%.*s",
634 ada_name_prefix_len (TYPE_FIELD_NAME (type, i)),
635 TYPE_FIELD_NAME (type, i));
636 annotate_field_name_end ();
637 fputs_filtered (" => ", stream);
638 annotate_field_value ();
640 if (TYPE_FIELD_PACKED (type, i))
644 /* Bitfields require special handling, especially due to byte
646 if (HAVE_CPLUS_STRUCT (type) && TYPE_FIELD_IGNORE (type, i))
648 fputs_filtered (_("<optimized out or zero length>"), stream);
652 int bit_pos = TYPE_FIELD_BITPOS (type, i);
653 int bit_size = TYPE_FIELD_BITSIZE (type, i);
654 struct value_print_options opts;
656 adjust_type_signedness (TYPE_FIELD_TYPE (type, i));
657 v = ada_value_primitive_packed_val
659 offset + bit_pos / HOST_CHAR_BIT,
660 bit_pos % HOST_CHAR_BIT,
661 bit_size, TYPE_FIELD_TYPE (type, i));
664 val_print (TYPE_FIELD_TYPE (type, i),
665 value_contents_for_printing (v),
666 value_embedded_offset (v), 0,
667 stream, recurse + 1, v,
668 &opts, current_language);
673 struct value_print_options opts = *options;
676 ada_val_print (TYPE_FIELD_TYPE (type, i),
679 + TYPE_FIELD_BITPOS (type, i) / HOST_CHAR_BIT),
680 0, stream, recurse + 1, val, &opts);
682 annotate_field_end ();
688 /* Implement Ada val_print-ing for GNAT arrays (Eg. fat pointers,
689 thin pointers, etc). */
692 ada_val_print_gnat_array (struct type *type, const gdb_byte *valaddr,
693 int offset, CORE_ADDR address,
694 struct ui_file *stream, int recurse,
695 const struct value *original_value,
696 const struct value_print_options *options,
697 const struct language_defn *language)
699 struct value *mark = value_mark ();
702 val = value_from_contents_and_address (type, valaddr + offset, address);
703 /* If this is a reference, coerce it now. This helps taking care
704 of the case where ADDRESS is meaningless because original_value
706 val = coerce_ref (val);
707 if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) /* array access type. */
708 val = ada_coerce_to_simple_array_ptr (val);
710 val = ada_coerce_to_simple_array (val);
713 gdb_assert (TYPE_CODE (type) == TYPE_CODE_TYPEDEF);
714 fprintf_filtered (stream, "0x0");
717 val_print (value_type (val), value_contents_for_printing (val),
718 value_embedded_offset (val), value_address (val),
719 stream, recurse, val, options, language);
720 value_free_to_mark (mark);
723 /* Implement Ada val_print'ing for the case where TYPE is
727 ada_val_print_ptr (struct type *type, const gdb_byte *valaddr,
728 int offset, int offset_aligned, CORE_ADDR address,
729 struct ui_file *stream, int recurse,
730 const struct value *original_value,
731 const struct value_print_options *options,
732 const struct language_defn *language)
734 val_print (type, valaddr, offset, address, stream, recurse,
735 original_value, options, language_def (language_c));
737 if (ada_is_tag_type (type))
740 value_from_contents_and_address (type,
741 valaddr + offset_aligned,
742 address + offset_aligned);
743 const char *name = ada_tag_name (val);
746 fprintf_filtered (stream, " (%s)", name);
750 /* Implement Ada val_print'ing for the case where TYPE is
751 a TYPE_CODE_INT or TYPE_CODE_RANGE. */
754 ada_val_print_num (struct type *type, const gdb_byte *valaddr,
755 int offset, int offset_aligned, CORE_ADDR address,
756 struct ui_file *stream, int recurse,
757 const struct value *original_value,
758 const struct value_print_options *options,
759 const struct language_defn *language)
761 if (ada_is_fixed_point_type (type))
763 LONGEST v = unpack_long (type, valaddr + offset_aligned);
765 fprintf_filtered (stream, TYPE_LENGTH (type) < 4 ? "%.11g" : "%.17g",
766 (double) ada_fixed_to_float (type, v));
769 else if (TYPE_CODE (type) == TYPE_CODE_RANGE)
771 struct type *target_type = TYPE_TARGET_TYPE (type);
773 if (TYPE_LENGTH (type) != TYPE_LENGTH (target_type))
775 /* Obscure case of range type that has different length from
776 its base type. Perform a conversion, or we will get a
777 nonsense value. Actually, we could use the same
778 code regardless of lengths; I'm just avoiding a cast. */
780 = value_from_contents_and_address (type, valaddr + offset, 0);
781 struct value *v = value_cast (target_type, v1);
783 val_print (target_type, value_contents_for_printing (v),
784 value_embedded_offset (v), 0, stream,
785 recurse + 1, v, options, language);
788 val_print (TYPE_TARGET_TYPE (type), valaddr, offset,
789 address, stream, recurse, original_value,
795 int format = (options->format ? options->format
796 : options->output_format);
800 struct value_print_options opts = *options;
802 opts.format = format;
803 val_print_scalar_formatted (type, valaddr, offset_aligned,
804 original_value, &opts, 0, stream);
806 else if (ada_is_system_address_type (type))
808 /* FIXME: We want to print System.Address variables using
809 the same format as for any access type. But for some
810 reason GNAT encodes the System.Address type as an int,
811 so we have to work-around this deficiency by handling
812 System.Address values as a special case. */
814 struct gdbarch *gdbarch = get_type_arch (type);
815 struct type *ptr_type = builtin_type (gdbarch)->builtin_data_ptr;
816 CORE_ADDR addr = extract_typed_address (valaddr + offset_aligned,
819 fprintf_filtered (stream, "(");
820 type_print (type, "", stream, -1);
821 fprintf_filtered (stream, ") ");
822 fputs_filtered (paddress (gdbarch, addr), stream);
826 val_print_type_code_int (type, valaddr + offset_aligned, stream);
827 if (ada_is_character_type (type))
831 fputs_filtered (" ", stream);
832 c = unpack_long (type, valaddr + offset_aligned);
833 ada_printchar (c, type, stream);
840 /* Implement Ada val_print'ing for the case where TYPE is
844 ada_val_print_enum (struct type *type, const gdb_byte *valaddr,
845 int offset, int offset_aligned, CORE_ADDR address,
846 struct ui_file *stream, int recurse,
847 const struct value *original_value,
848 const struct value_print_options *options,
849 const struct language_defn *language)
857 val_print_scalar_formatted (type, valaddr, offset_aligned,
858 original_value, options, 0, stream);
862 len = TYPE_NFIELDS (type);
863 val = unpack_long (type, valaddr + offset_aligned);
864 for (i = 0; i < len; i++)
867 if (val == TYPE_FIELD_ENUMVAL (type, i))
873 const char *name = ada_enum_name (TYPE_FIELD_NAME (type, i));
876 fprintf_filtered (stream, "%ld %s", (long) val, name);
878 fputs_filtered (name, stream);
881 print_longest (stream, 'd', 0, val);
884 /* Implement Ada val_print'ing for the case where TYPE is
888 ada_val_print_flt (struct type *type, const gdb_byte *valaddr,
889 int offset, int offset_aligned, CORE_ADDR address,
890 struct ui_file *stream, int recurse,
891 const struct value *original_value,
892 const struct value_print_options *options,
893 const struct language_defn *language)
897 val_print (type, valaddr, offset, address, stream, recurse,
898 original_value, options, language_def (language_c));
902 ada_print_floating (valaddr + offset, type, stream);
905 /* Implement Ada val_print'ing for the case where TYPE is
906 a TYPE_CODE_STRUCT or TYPE_CODE_UNION. */
909 ada_val_print_struct_union
910 (struct type *type, const gdb_byte *valaddr, int offset,
911 int offset_aligned, CORE_ADDR address, struct ui_file *stream,
912 int recurse, const struct value *original_value,
913 const struct value_print_options *options,
914 const struct language_defn *language)
916 if (ada_is_bogus_array_descriptor (type))
918 fprintf_filtered (stream, "(...?)");
922 fprintf_filtered (stream, "(");
924 if (print_field_values (type, valaddr, offset_aligned,
925 stream, recurse, original_value, options,
926 0, type, offset_aligned) != 0
927 && options->prettyformat)
929 fprintf_filtered (stream, "\n");
930 print_spaces_filtered (2 * recurse, stream);
933 fprintf_filtered (stream, ")");
936 /* Implement Ada val_print'ing for the case where TYPE is
937 a TYPE_CODE_ARRAY. */
940 ada_val_print_array (struct type *type, const gdb_byte *valaddr,
941 int offset, int offset_aligned, CORE_ADDR address,
942 struct ui_file *stream, int recurse,
943 const struct value *original_value,
944 const struct value_print_options *options)
946 /* For an array of chars, print with string syntax. */
947 if (ada_is_string_type (type)
948 && (options->format == 0 || options->format == 's'))
950 enum bfd_endian byte_order = gdbarch_byte_order (get_type_arch (type));
951 struct type *elttype = TYPE_TARGET_TYPE (type);
955 /* We know that ELTTYPE cannot possibly be null, because we found
956 that TYPE is a string-like type. Similarly, the size of ELTTYPE
957 should also be non-null, since it's a character-like type. */
958 gdb_assert (elttype != NULL);
959 gdb_assert (TYPE_LENGTH (elttype) != 0);
961 eltlen = TYPE_LENGTH (elttype);
962 len = TYPE_LENGTH (type) / eltlen;
964 if (options->prettyformat_arrays)
965 print_spaces_filtered (2 + 2 * recurse, stream);
967 /* If requested, look for the first null char and only print
968 elements up to it. */
969 if (options->stop_print_at_null)
973 /* Look for a NULL char. */
976 && temp_len < options->print_max
977 && char_at (valaddr + offset_aligned,
978 temp_len, eltlen, byte_order) != 0);
983 printstr (stream, elttype, valaddr + offset_aligned, len, 0,
988 fprintf_filtered (stream, "(");
989 print_optional_low_bound (stream, type, options);
990 if (TYPE_FIELD_BITSIZE (type, 0) > 0)
991 val_print_packed_array_elements (type, valaddr, offset_aligned,
993 original_value, options);
995 val_print_array_elements (type, valaddr, offset_aligned, address,
996 stream, recurse, original_value,
998 fprintf_filtered (stream, ")");
1002 /* Implement Ada val_print'ing for the case where TYPE is
1006 ada_val_print_ref (struct type *type, const gdb_byte *valaddr,
1007 int offset, int offset_aligned, CORE_ADDR address,
1008 struct ui_file *stream, int recurse,
1009 const struct value *original_value,
1010 const struct value_print_options *options,
1011 const struct language_defn *language)
1013 /* For references, the debugger is expected to print the value as
1014 an address if DEREF_REF is null. But printing an address in place
1015 of the object value would be confusing to an Ada programmer.
1016 So, for Ada values, we print the actual dereferenced value
1018 struct type *elttype = check_typedef (TYPE_TARGET_TYPE (type));
1019 struct value *deref_val;
1020 CORE_ADDR deref_val_int;
1022 if (TYPE_CODE (elttype) == TYPE_CODE_UNDEF)
1024 fputs_filtered ("<ref to undefined type>", stream);
1028 deref_val = coerce_ref_if_computed (original_value);
1031 if (ada_is_tagged_type (value_type (deref_val), 1))
1032 deref_val = ada_tag_value_at_base_address (deref_val);
1034 common_val_print (deref_val, stream, recurse + 1, options,
1039 deref_val_int = unpack_pointer (type, valaddr + offset_aligned);
1040 if (deref_val_int == 0)
1042 fputs_filtered ("(null)", stream);
1047 = ada_value_ind (value_from_pointer (lookup_pointer_type (elttype),
1049 if (ada_is_tagged_type (value_type (deref_val), 1))
1050 deref_val = ada_tag_value_at_base_address (deref_val);
1052 val_print (value_type (deref_val),
1053 value_contents_for_printing (deref_val),
1054 value_embedded_offset (deref_val),
1055 value_address (deref_val), stream, recurse + 1,
1056 deref_val, options, language);
1059 /* See the comment on ada_val_print. This function differs in that it
1060 does not catch evaluation errors (leaving that to ada_val_print). */
1063 ada_val_print_1 (struct type *type, const gdb_byte *valaddr,
1064 int offset, CORE_ADDR address,
1065 struct ui_file *stream, int recurse,
1066 const struct value *original_value,
1067 const struct value_print_options *options,
1068 const struct language_defn *language)
1072 type = ada_check_typedef (type);
1074 if (ada_is_array_descriptor_type (type)
1075 || (ada_is_constrained_packed_array_type (type)
1076 && TYPE_CODE (type) != TYPE_CODE_PTR))
1078 ada_val_print_gnat_array (type, valaddr, offset, address,
1079 stream, recurse, original_value,
1084 offset_aligned = offset + ada_aligned_value_addr (type, valaddr) - valaddr;
1085 type = printable_val_type (type, valaddr + offset_aligned);
1087 switch (TYPE_CODE (type))
1090 val_print (type, valaddr, offset, address, stream, recurse,
1091 original_value, options, language_def (language_c));
1095 ada_val_print_ptr (type, valaddr, offset, offset_aligned,
1096 address, stream, recurse, original_value,
1101 case TYPE_CODE_RANGE:
1102 ada_val_print_num (type, valaddr, offset, offset_aligned,
1103 address, stream, recurse, original_value,
1107 case TYPE_CODE_ENUM:
1108 ada_val_print_enum (type, valaddr, offset, offset_aligned,
1109 address, stream, recurse, original_value,
1114 ada_val_print_flt (type, valaddr, offset, offset_aligned,
1115 address, stream, recurse, original_value,
1119 case TYPE_CODE_UNION:
1120 case TYPE_CODE_STRUCT:
1121 ada_val_print_struct_union (type, valaddr, offset, offset_aligned,
1122 address, stream, recurse,
1123 original_value, options, language);
1126 case TYPE_CODE_ARRAY:
1127 ada_val_print_array (type, valaddr, offset, offset_aligned,
1128 address, stream, recurse, original_value,
1133 ada_val_print_ref (type, valaddr, offset, offset_aligned,
1134 address, stream, recurse, original_value,
1140 /* See val_print for a description of the various parameters of this
1141 function; they are identical. */
1144 ada_val_print (struct type *type, const gdb_byte *valaddr,
1145 int embedded_offset, CORE_ADDR address,
1146 struct ui_file *stream, int recurse,
1147 const struct value *val,
1148 const struct value_print_options *options)
1150 volatile struct gdb_exception except;
1152 /* XXX: this catches QUIT/ctrl-c as well. Isn't that busted? */
1153 TRY_CATCH (except, RETURN_MASK_ALL)
1155 ada_val_print_1 (type, valaddr, embedded_offset, address,
1156 stream, recurse, val, options,
1162 ada_value_print (struct value *val0, struct ui_file *stream,
1163 const struct value_print_options *options)
1165 struct value *val = ada_to_fixed_value (val0);
1166 CORE_ADDR address = value_address (val);
1167 struct type *type = ada_check_typedef (value_type (val));
1168 struct value_print_options opts;
1170 /* If it is a pointer, indicate what it points to. */
1171 if (TYPE_CODE (type) == TYPE_CODE_PTR)
1173 /* Hack: don't print (char *) for char strings. Their
1174 type is indicated by the quoted string anyway. */
1175 if (TYPE_LENGTH (TYPE_TARGET_TYPE (type)) != sizeof (char)
1176 || TYPE_CODE (TYPE_TARGET_TYPE (type)) != TYPE_CODE_INT
1177 || TYPE_UNSIGNED (TYPE_TARGET_TYPE (type)))
1179 fprintf_filtered (stream, "(");
1180 type_print (type, "", stream, -1);
1181 fprintf_filtered (stream, ") ");
1184 else if (ada_is_array_descriptor_type (type))
1186 /* We do not print the type description unless TYPE is an array
1187 access type (this is encoded by the compiler as a typedef to
1188 a fat pointer - hence the check against TYPE_CODE_TYPEDEF). */
1189 if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF)
1191 fprintf_filtered (stream, "(");
1192 type_print (type, "", stream, -1);
1193 fprintf_filtered (stream, ") ");
1196 else if (ada_is_bogus_array_descriptor (type))
1198 fprintf_filtered (stream, "(");
1199 type_print (type, "", stream, -1);
1200 fprintf_filtered (stream, ") (...?)");
1206 val_print (type, value_contents_for_printing (val),
1207 value_embedded_offset (val), address,
1208 stream, 0, val, &opts, current_language);