1 /* Support for printing D values for GDB, the GNU debugger.
3 Copyright (C) 2008-2019 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/>. */
22 /* Local non-gdb includes. */
28 /* Assuming that TYPE is a TYPE_CODE_STRUCT, verify that TYPE is a
29 dynamic array, and then print its value to STREAM. Return zero if
30 TYPE is a dynamic array, non-zero otherwise. */
33 dynamic_array_type (struct type *type,
34 LONGEST embedded_offset, CORE_ADDR address,
35 struct ui_file *stream, int recurse,
37 const struct value_print_options *options)
39 if (TYPE_NFIELDS (type) == 2
40 && TYPE_CODE (TYPE_FIELD_TYPE (type, 0)) == TYPE_CODE_INT
41 && strcmp (TYPE_FIELD_NAME (type, 0), "length") == 0
42 && strcmp (TYPE_FIELD_NAME (type, 1), "ptr") == 0
43 && !value_bits_any_optimized_out (val,
44 TARGET_CHAR_BIT * embedded_offset,
45 TARGET_CHAR_BIT * TYPE_LENGTH (type)))
49 struct type *true_type;
50 struct type *ptr_type;
53 const gdb_byte *valaddr = value_contents_for_printing (val);
55 length = unpack_field_as_long (type, valaddr + embedded_offset, 0);
57 ptr_type = TYPE_FIELD_TYPE (type, 1);
58 elttype = check_typedef (TYPE_TARGET_TYPE (ptr_type));
59 addr = unpack_pointer (ptr_type,
60 valaddr + TYPE_FIELD_BITPOS (type, 1) / 8
62 true_type = check_typedef (elttype);
64 true_type = lookup_array_range_type (true_type, 0, length - 1);
65 ival = value_at (true_type, addr);
66 true_type = value_type (ival);
68 d_val_print (true_type,
69 value_embedded_offset (ival), addr,
70 stream, recurse + 1, ival, options);
76 /* Implements the la_val_print routine for language D. */
78 d_val_print (struct type *type, int embedded_offset,
79 CORE_ADDR address, struct ui_file *stream, int recurse,
81 const struct value_print_options *options)
85 type = check_typedef (type);
86 switch (TYPE_CODE (type))
88 case TYPE_CODE_STRUCT:
89 ret = dynamic_array_type (type, embedded_offset, address,
90 stream, recurse, val, options);
95 c_val_print (type, embedded_offset, address, stream,
96 recurse, val, options);