12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394 |
- /* Support for printing D values for GDB, the GNU debugger.
- Copyright (C) 2008-2022 Free Software Foundation, Inc.
- This file is part of GDB.
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 3 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>. */
- #include "defs.h"
- #include "gdbtypes.h"
- #include "gdbcore.h"
- #include "d-lang.h"
- #include "c-lang.h"
- /* Assuming that TYPE is a TYPE_CODE_STRUCT, verify that TYPE is a
- dynamic array, and then print its value to STREAM. Return zero if
- TYPE is a dynamic array, non-zero otherwise. */
- static int
- dynamic_array_type (struct type *type,
- LONGEST embedded_offset, CORE_ADDR address,
- struct ui_file *stream, int recurse,
- struct value *val,
- const struct value_print_options *options)
- {
- if (type->num_fields () == 2
- && type->field (0).type ()->code () == TYPE_CODE_INT
- && strcmp (type->field (0).name (), "length") == 0
- && strcmp (type->field (1).name (), "ptr") == 0
- && !value_bits_any_optimized_out (val,
- TARGET_CHAR_BIT * embedded_offset,
- TARGET_CHAR_BIT * TYPE_LENGTH (type)))
- {
- CORE_ADDR addr;
- struct type *elttype;
- struct type *true_type;
- struct type *ptr_type;
- struct value *ival;
- int length;
- const gdb_byte *valaddr = value_contents_for_printing (val).data ();
- length = unpack_field_as_long (type, valaddr + embedded_offset, 0);
- ptr_type = type->field (1).type ();
- elttype = check_typedef (TYPE_TARGET_TYPE (ptr_type));
- addr = unpack_pointer (ptr_type,
- valaddr + type->field (1).loc_bitpos () / 8
- + embedded_offset);
- true_type = check_typedef (elttype);
- true_type = lookup_array_range_type (true_type, 0, length - 1);
- ival = value_at (true_type, addr);
- true_type = value_type (ival);
- d_value_print_inner (ival, stream, recurse + 1, options);
- return 0;
- }
- return 1;
- }
- /* See d-lang.h. */
- void
- d_value_print_inner (struct value *val, struct ui_file *stream, int recurse,
- const struct value_print_options *options)
- {
- int ret;
- struct type *type = check_typedef (value_type (val));
- switch (type->code ())
- {
- case TYPE_CODE_STRUCT:
- ret = dynamic_array_type (type, value_embedded_offset (val),
- value_address (val),
- stream, recurse, val, options);
- if (ret == 0)
- break;
- /* Fall through. */
- default:
- c_value_print_inner (val, stream, recurse, options);
- break;
- }
- }
|