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/* Check whether DIE has specific attribute, integrating DW_AT_abstract_origin.
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Copyright (C) 2005, 2018 Red Hat, Inc.
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This file is part of elfutils.
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This file is free software; you can redistribute it and/or modify
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it under the terms of either
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* the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at
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your option) any later version
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or
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* the GNU General Public License as published by the Free
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Software Foundation; either version 2 of the License, or (at
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your option) any later version
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or both in parallel, as here.
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elfutils is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received copies of the GNU General Public License and
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the GNU Lesser General Public License along with this program. If
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not, see <http://www.gnu.org/licenses/>. */
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <dwarf.h>
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#include "libdwP.h"
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int
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dwarf_hasattr_integrate (Dwarf_Die *die, unsigned int search_name)
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{
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Dwarf_Die die_mem;
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int chain = 16; /* Largest DIE ref chain we will follow. */
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do
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{
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if (INTUSE(dwarf_hasattr) (die, search_name))
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return 1;
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Dwarf_Attribute attr_mem;
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Dwarf_Attribute *attr = INTUSE(dwarf_attr) (die, DW_AT_abstract_origin,
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&attr_mem);
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if (attr == NULL)
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attr = INTUSE(dwarf_attr) (die, DW_AT_specification, &attr_mem);
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if (attr == NULL)
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break;
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die = INTUSE(dwarf_formref_die) (attr, &die_mem);
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}
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while (die != NULL && chain-- != 0);
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/* Not NULL if it didn't have abstract_origin and specification
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attributes. If it is a split CU then see if the skeleton
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has it. */
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if (die != NULL && is_cudie (die)
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&& die->cu->unit_type == DW_UT_split_compile)
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{
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Dwarf_CU *skel_cu = __libdw_find_split_unit (die->cu);
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if (skel_cu != NULL)
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{
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Dwarf_Die skel_die = CUDIE (skel_cu);
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return INTUSE(dwarf_hasattr) (&skel_die, search_name);
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}
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}
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return 0;
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}
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