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6aecb9c2 JB |
1 | /* Support for printing D values for GDB, the GNU debugger. |
2 | ||
3 | Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc. | |
4 | ||
5 | This file is part of GDB. | |
6 | ||
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. | |
11 | ||
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. | |
16 | ||
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/>. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include "gdbtypes.h" | |
22 | #include "gdbcore.h" | |
23 | #include "d-lang.h" | |
24 | #include "c-lang.h" | |
25 | ||
26 | /* Assuming that TYPE is a TYPE_CODE_STRUCT, verify that TYPE is | |
27 | a dynamic array, and then print its value to STREAM. Return | |
28 | the number of string characters printed, or -1 if TYPE is not | |
29 | a dynamic array. */ | |
30 | static int | |
31 | dynamic_array_type (struct type *type, const gdb_byte *valaddr, | |
32 | int embedded_offset, CORE_ADDR address, | |
33 | struct ui_file *stream, int recurse, | |
0e03807e | 34 | const struct value *val, |
6aecb9c2 JB |
35 | const struct value_print_options *options) |
36 | { | |
37 | if (TYPE_NFIELDS (type) == 2 | |
38 | && TYPE_CODE (TYPE_FIELD_TYPE (type, 0)) == TYPE_CODE_INT | |
39 | && strcmp (TYPE_FIELD_NAME (type, 0), "length") == 0 | |
0e03807e TT |
40 | && strcmp (TYPE_FIELD_NAME (type, 1), "ptr") == 0 |
41 | && value_bits_valid (val, TARGET_CHAR_BIT * embedded_offset, | |
42 | TARGET_CHAR_BIT * TYPE_LENGTH (type))) | |
6aecb9c2 JB |
43 | { |
44 | CORE_ADDR addr; | |
45 | struct type *elttype; | |
46 | struct type *true_type; | |
47 | struct type *ptr_type; | |
6aecb9c2 JB |
48 | const gdb_byte *ptraddr; |
49 | struct value *val; | |
50 | int length; | |
51 | ||
52 | length = unpack_field_as_long (type, valaddr + embedded_offset, 0); | |
53 | ||
54 | ptr_type = TYPE_FIELD_TYPE (type, 1); | |
55 | elttype = check_typedef (TYPE_TARGET_TYPE (ptr_type)); | |
56 | addr = unpack_pointer (ptr_type, | |
57 | valaddr + TYPE_FIELD_BITPOS (type, 1) / 8 | |
58 | + embedded_offset); | |
59 | true_type = check_typedef (elttype); | |
60 | ||
61 | true_type = lookup_array_range_type (true_type, 0, length - 1); | |
62 | val = value_at (true_type, addr); | |
63 | ptraddr = value_contents (val); | |
64 | ||
65 | return d_val_print (true_type, ptraddr, 0, addr, stream, recurse + 1, | |
0e03807e | 66 | NULL, options); |
6aecb9c2 JB |
67 | } |
68 | return -1; | |
69 | } | |
70 | ||
71 | /* Implements the la_val_print routine for language D. */ | |
72 | int | |
73 | d_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset, | |
74 | CORE_ADDR address, struct ui_file *stream, int recurse, | |
0e03807e | 75 | const struct value *val, |
6aecb9c2 JB |
76 | const struct value_print_options *options) |
77 | { | |
78 | int ret; | |
79 | ||
80 | CHECK_TYPEDEF (type); | |
81 | switch (TYPE_CODE (type)) | |
82 | { | |
83 | case TYPE_CODE_STRUCT: | |
84 | ret = dynamic_array_type (type, valaddr, embedded_offset, address, | |
0e03807e | 85 | stream, recurse, val, options); |
6aecb9c2 JB |
86 | if (ret != -1) |
87 | break; | |
88 | default: | |
89 | ret = c_val_print (type, valaddr, embedded_offset, address, stream, | |
0e03807e | 90 | recurse, val, options); |
6aecb9c2 JB |
91 | } |
92 | ||
93 | return ret; | |
94 | } |