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Diffstat (limited to 'gdb/d-valprint.c')
-rw-r--r-- | gdb/d-valprint.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/gdb/d-valprint.c b/gdb/d-valprint.c new file mode 100644 index 0000000..67b32b7 --- /dev/null +++ b/gdb/d-valprint.c @@ -0,0 +1,91 @@ +/* Support for printing D values for GDB, the GNU debugger. + + Copyright (C) 2008, 2009, 2010 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 + the number of string characters printed, or -1 if TYPE is not + a dynamic array. */ +static int +dynamic_array_type (struct type *type, const gdb_byte *valaddr, + int embedded_offset, CORE_ADDR address, + struct ui_file *stream, int recurse, + const struct value_print_options *options) +{ + if (TYPE_NFIELDS (type) == 2 + && TYPE_CODE (TYPE_FIELD_TYPE (type, 0)) == TYPE_CODE_INT + && strcmp (TYPE_FIELD_NAME (type, 0), "length") == 0 + && strcmp (TYPE_FIELD_NAME (type, 1), "ptr") == 0) + { + CORE_ADDR addr; + struct type *elttype; + struct type *true_type; + struct type *ptr_type; + struct type *range_type; + const gdb_byte *ptraddr; + struct value *val; + int length; + + length = unpack_field_as_long (type, valaddr + embedded_offset, 0); + + ptr_type = TYPE_FIELD_TYPE (type, 1); + elttype = check_typedef (TYPE_TARGET_TYPE (ptr_type)); + addr = unpack_pointer (ptr_type, + valaddr + TYPE_FIELD_BITPOS (type, 1) / 8 + + embedded_offset); + true_type = check_typedef (elttype); + + true_type = lookup_array_range_type (true_type, 0, length - 1); + val = value_at (true_type, addr); + ptraddr = value_contents (val); + + return d_val_print (true_type, ptraddr, 0, addr, stream, recurse + 1, + options); + } + return -1; +} + +/* Implements the la_val_print routine for language D. */ +int +d_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset, + CORE_ADDR address, struct ui_file *stream, int recurse, + const struct value_print_options *options) +{ + int ret; + + CHECK_TYPEDEF (type); + switch (TYPE_CODE (type)) + { + case TYPE_CODE_STRUCT: + ret = dynamic_array_type (type, valaddr, embedded_offset, address, + stream, recurse, options); + if (ret != -1) + break; + default: + ret = c_val_print (type, valaddr, embedded_offset, address, stream, + recurse, options); + } + + return ret; +} |