mirror of
https://github.com/openharmony/third_party_elfutils.git
synced 2026-07-19 19:43:34 -04:00
Ulrich Drepper
85 lines
2.4 KiB
C
85 lines
2.4 KiB
C
/* Return signed constant represented by attribute.
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Copyright (C) 2000, 2002 Red Hat, Inc.
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This file is part of Red Hat elfutils.
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Written by Ulrich Drepper <drepper@redhat.com>, 2000.
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Red Hat elfutils 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 the
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Free Software Foundation; version 2 of the License.
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Red Hat 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 a copy of the GNU General Public License along
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with Red Hat elfutils; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
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Red Hat elfutils is an included package of the Open Invention Network.
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An included package of the Open Invention Network is a package for which
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Open Invention Network licensees cross-license their patents. No patent
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license is granted, either expressly or impliedly, by designation as an
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included package. Should you wish to participate in the Open Invention
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Network licensing program, please visit www.openinventionnetwork.com
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<http://www.openinventionnetwork.com>. */
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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 <libdwarfP.h>
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int
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dwarf_formsdata (attr, return_sval, error)
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Dwarf_Attribute attr;
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Dwarf_Signed *return_sval;
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Dwarf_Error *error;
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{
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Dwarf_Signed u128;
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switch (attr->form)
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{
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case DW_FORM_data1:
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*return_sval = *attr->valp;
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break;
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case DW_FORM_data2:
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*return_sval = read_2ubyte_unaligned (attr->cu->dbg, attr->valp);
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break;
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case DW_FORM_data4:
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*return_sval = read_4ubyte_unaligned (attr->cu->dbg, attr->valp);
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break;
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case DW_FORM_data8:
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*return_sval = read_8ubyte_unaligned (attr->cu->dbg, attr->valp);
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break;
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case DW_FORM_sdata:
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{
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Dwarf_Small *attrp = attr->valp;
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get_sleb128 (u128, attrp);
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*return_sval = u128;
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}
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break;
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case DW_FORM_udata:
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{
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Dwarf_Small *attrp = attr->valp;
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get_uleb128 (u128, attrp);
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*return_sval = u128;
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}
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break;
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default:
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__libdwarf_error (attr->cu->dbg, error, DW_E_NO_CONSTANT);
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return DW_DLV_ERROR;
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}
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return DW_DLV_OK;
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}
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