| 1 | /* Support for printing D values for GDB, the GNU debugger. |
| 2 | |
| 3 | Copyright (C) 2008-2014 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 a |
| 27 | dynamic array, and then print its value to STREAM. Return zero if |
| 28 | TYPE is a dynamic array, non-zero otherwise. */ |
| 29 | |
| 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, |
| 34 | const struct value *val, |
| 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 |
| 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))) |
| 43 | { |
| 44 | CORE_ADDR addr; |
| 45 | struct type *elttype; |
| 46 | struct type *true_type; |
| 47 | struct type *ptr_type; |
| 48 | struct value *ival; |
| 49 | int length; |
| 50 | |
| 51 | length = unpack_field_as_long (type, valaddr + embedded_offset, 0); |
| 52 | |
| 53 | ptr_type = TYPE_FIELD_TYPE (type, 1); |
| 54 | elttype = check_typedef (TYPE_TARGET_TYPE (ptr_type)); |
| 55 | addr = unpack_pointer (ptr_type, |
| 56 | valaddr + TYPE_FIELD_BITPOS (type, 1) / 8 |
| 57 | + embedded_offset); |
| 58 | true_type = check_typedef (elttype); |
| 59 | |
| 60 | true_type = lookup_array_range_type (true_type, 0, length - 1); |
| 61 | ival = value_at (true_type, addr); |
| 62 | true_type = value_type (ival); |
| 63 | |
| 64 | d_val_print (true_type, |
| 65 | value_contents_for_printing (ival), |
| 66 | value_embedded_offset (ival), addr, |
| 67 | stream, recurse + 1, ival, options); |
| 68 | return 0; |
| 69 | } |
| 70 | return 1; |
| 71 | } |
| 72 | |
| 73 | /* Implements the la_val_print routine for language D. */ |
| 74 | void |
| 75 | d_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset, |
| 76 | CORE_ADDR address, struct ui_file *stream, int recurse, |
| 77 | const struct value *val, |
| 78 | const struct value_print_options *options) |
| 79 | { |
| 80 | int ret; |
| 81 | |
| 82 | CHECK_TYPEDEF (type); |
| 83 | switch (TYPE_CODE (type)) |
| 84 | { |
| 85 | case TYPE_CODE_STRUCT: |
| 86 | ret = dynamic_array_type (type, valaddr, embedded_offset, address, |
| 87 | stream, recurse, val, options); |
| 88 | if (ret == 0) |
| 89 | break; |
| 90 | default: |
| 91 | c_val_print (type, valaddr, embedded_offset, address, stream, |
| 92 | recurse, val, options); |
| 93 | } |
| 94 | } |