6b8505468e
GDB computes structure byte offsets using a 32 bit integer. And, first it computes the offset in bits and then converts to bytes. The result is that any offset that if 512K bytes or larger overflows. This patch changes GDB to use LONGEST for such calculations. PR gdb/17520 Structure offset wrong when 1/4 GB or greater. * c-lang.h: Change all parameters, variables, and struct or union members used as struct or union fie3ld offsets from int to LONGEST. * c-valprint.c: Likewise. * cp-abi.c: Likewise. * cp-abi.h: Likewise. * cp-valprint.c: Likewise. * d-valprint.c: Likewise. * dwarf2loc.c: Likewise. * eval.c: Likewise. * extension-priv.h: Likewise. * extension.c: Likewise. * extension.h: Likewise. * findvar.c: Likewise. * gdbtypes.h: Likewise. * gnu-v2-abi.c: Likewise. * gnu-v3-abi.c: Likewise. * go-valprint.c: Likewise. * guile/guile-internal.h: Likewise. * guile/scm-pretty-print.c: Likewise. * jv-valprint.c Likewise. * opencl-lang.c: Likewise. * p-lang.h: Likewise. * python/py-prettyprint.c: Likewise. * python/python-internal.h: Likewise. * spu-tdep.c: Likewise. * typeprint.c: Likewise. * valarith.c: Likewise. * valops.c: Likewise. * valprint.c: Likewise. * valprint.h: Likewise. * value.c: Likewise. * value.h: Likewise. * p-valprint.c: Likewise. * c-typeprint.c (c_type_print_base): When printing offset, use plongest, not %d. * gdbtypes.c (recursive_dump_type): Ditto.
95 lines
3.1 KiB
C
95 lines
3.1 KiB
C
/* Support for printing D values for GDB, the GNU debugger.
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Copyright (C) 2008-2016 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 a
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dynamic array, and then print its value to STREAM. Return zero if
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TYPE is a dynamic array, non-zero otherwise. */
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static int
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dynamic_array_type (struct type *type, const gdb_byte *valaddr,
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LONGEST embedded_offset, CORE_ADDR address,
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struct ui_file *stream, int recurse,
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const struct value *val,
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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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&& !value_bits_any_optimized_out (val,
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TARGET_CHAR_BIT * embedded_offset,
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TARGET_CHAR_BIT * TYPE_LENGTH (type)))
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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 value *ival;
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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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ival = value_at (true_type, addr);
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true_type = value_type (ival);
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d_val_print (true_type,
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value_contents_for_printing (ival),
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value_embedded_offset (ival), addr,
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stream, recurse + 1, ival, options);
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return 0;
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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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void
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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 *val,
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const struct value_print_options *options)
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{
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int ret;
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type = 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, val, options);
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if (ret == 0)
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break;
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default:
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c_val_print (type, valaddr, embedded_offset, address, stream,
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recurse, val, options);
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}
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}
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