92 lines
2.9 KiB
C
92 lines
2.9 KiB
C
/* Support for printing D values for GDB, the GNU debugger.
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Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "gdbtypes.h"
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#include "gdbcore.h"
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#include "d-lang.h"
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#include "c-lang.h"
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/* Assuming that TYPE is a TYPE_CODE_STRUCT, verify that TYPE is
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a dynamic array, and then print its value to STREAM. Return
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the number of string characters printed, or -1 if TYPE is not
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a dynamic array. */
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static int
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dynamic_array_type (struct type *type, const gdb_byte *valaddr,
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int embedded_offset, CORE_ADDR address,
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struct ui_file *stream, int recurse,
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const struct value_print_options *options)
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{
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if (TYPE_NFIELDS (type) == 2
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&& TYPE_CODE (TYPE_FIELD_TYPE (type, 0)) == TYPE_CODE_INT
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&& strcmp (TYPE_FIELD_NAME (type, 0), "length") == 0
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&& strcmp (TYPE_FIELD_NAME (type, 1), "ptr") == 0)
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{
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CORE_ADDR addr;
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struct type *elttype;
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struct type *true_type;
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struct type *ptr_type;
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struct type *range_type;
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const gdb_byte *ptraddr;
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struct value *val;
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int length;
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length = unpack_field_as_long (type, valaddr + embedded_offset, 0);
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ptr_type = TYPE_FIELD_TYPE (type, 1);
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elttype = check_typedef (TYPE_TARGET_TYPE (ptr_type));
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addr = unpack_pointer (ptr_type,
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valaddr + TYPE_FIELD_BITPOS (type, 1) / 8
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+ embedded_offset);
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true_type = check_typedef (elttype);
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true_type = lookup_array_range_type (true_type, 0, length - 1);
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val = value_at (true_type, addr);
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ptraddr = value_contents (val);
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return d_val_print (true_type, ptraddr, 0, addr, stream, recurse + 1,
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options);
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}
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return -1;
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}
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/* Implements the la_val_print routine for language D. */
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int
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d_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset,
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CORE_ADDR address, struct ui_file *stream, int recurse,
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const struct value_print_options *options)
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{
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int ret;
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CHECK_TYPEDEF (type);
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switch (TYPE_CODE (type))
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{
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case TYPE_CODE_STRUCT:
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ret = dynamic_array_type (type, valaddr, embedded_offset, address,
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stream, recurse, options);
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if (ret != -1)
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break;
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default:
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ret = c_val_print (type, valaddr, embedded_offset, address, stream,
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recurse, options);
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}
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return ret;
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}
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