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61 lines
1.7 KiB
61 lines
1.7 KiB
4 months ago
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/* Get address range which includes given address.
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Copyright (C) 2004, 2005 Red Hat, Inc.
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This file is part of elfutils.
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Written by Ulrich Drepper <drepper@redhat.com>, 2004.
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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 <libdwP.h>
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Dwarf_Arange *
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dwarf_getarange_addr (Dwarf_Aranges *aranges, Dwarf_Addr addr)
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{
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if (aranges == NULL)
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return NULL;
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/* The ranges are sorted by address, so we can use binary search. */
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size_t l = 0, u = aranges->naranges;
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while (l < u)
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{
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size_t idx = (l + u) / 2;
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if (addr < aranges->info[idx].addr)
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u = idx;
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else if (addr > aranges->info[idx].addr
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&& addr - aranges->info[idx].addr >= aranges->info[idx].length)
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l = idx + 1;
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else
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return &aranges->info[idx];
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}
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__libdw_seterrno (DWARF_E_NO_MATCH);
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return NULL;
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}
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INTDEF(dwarf_getarange_addr)
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