1 /* Support for printing D values for GDB, the GNU debugger.
3 Copyright (C) 2008-2020 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/>. */
26 /* Assuming that TYPE is a TYPE_CODE_STRUCT, verify that TYPE is a
27 dynamic array, and then print its value to STREAM. Return zero if
28 TYPE is a dynamic array, non-zero otherwise. */
31 dynamic_array_type (struct type *type,
32 LONGEST embedded_offset, CORE_ADDR address,
33 struct ui_file *stream, int recurse,
35 const struct value_print_options *options)
37 if (type->num_fields () == 2
38 && type->field (0).type ()->code () == TYPE_CODE_INT
39 && strcmp (TYPE_FIELD_NAME (type, 0), "length") == 0
40 && strcmp (TYPE_FIELD_NAME (type, 1), "ptr") == 0
41 && !value_bits_any_optimized_out (val,
42 TARGET_CHAR_BIT * embedded_offset,
43 TARGET_CHAR_BIT * TYPE_LENGTH (type)))
47 struct type *true_type;
48 struct type *ptr_type;
51 const gdb_byte *valaddr = value_contents_for_printing (val);
53 length = unpack_field_as_long (type, valaddr + embedded_offset, 0);
55 ptr_type = type->field (1).type ();
56 elttype = check_typedef (TYPE_TARGET_TYPE (ptr_type));
57 addr = unpack_pointer (ptr_type,
58 valaddr + TYPE_FIELD_BITPOS (type, 1) / 8
60 true_type = check_typedef (elttype);
62 true_type = lookup_array_range_type (true_type, 0, length - 1);
63 ival = value_at (true_type, addr);
64 true_type = value_type (ival);
66 d_value_print_inner (ival, stream, recurse + 1, options);
75 d_value_print_inner (struct value *val, struct ui_file *stream, int recurse,
76 const struct value_print_options *options)
80 struct type *type = check_typedef (value_type (val));
81 switch (type->code ())
83 case TYPE_CODE_STRUCT:
84 ret = dynamic_array_type (type, value_embedded_offset (val),
86 stream, recurse, val, options);
91 c_value_print_inner (val, stream, recurse, options);