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60 lines
1.7 KiB
60 lines
1.7 KiB
/* 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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