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/* Return location expression to find return value given a function type DIE.
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Copyright (C) 2005, 2006 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 "libdwflP.h"
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int
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dwfl_module_return_value_location (Dwfl_Module *mod, Dwarf_Die *functypedie,
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const Dwarf_Op **locops)
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{
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if (mod == NULL)
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return -1;
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if (mod->ebl == NULL)
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{
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Dwfl_Error error = __libdwfl_module_getebl (mod);
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if (error != DWFL_E_NOERROR)
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{
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__libdwfl_seterrno (error);
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return -1;
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}
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}
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int nops = ebl_return_value_location (mod->ebl, functypedie, locops);
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if (unlikely (nops < 0))
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{
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if (nops == -1)
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__libdwfl_seterrno (DWFL_E_LIBDW);
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else if (nops == -2)
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__libdwfl_seterrno (DWFL_E_WEIRD_TYPE);
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else
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__libdwfl_seterrno (DWFL_E_LIBEBL);
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nops = -1;
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}
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return nops;
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}
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