Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame^] | 1 | /* Get address range which includes given address. |
| 2 | Copyright (C) 2004, 2005 Red Hat, Inc. |
| 3 | Written by Ulrich Drepper <drepper@redhat.com>, 2004. |
| 4 | |
| 5 | This program is Open Source software; you can redistribute it and/or |
| 6 | modify it under the terms of the Open Software License version 1.0 as |
| 7 | published by the Open Source Initiative. |
| 8 | |
| 9 | You should have received a copy of the Open Software License along |
| 10 | with this program; if not, you may obtain a copy of the Open Software |
| 11 | License version 1.0 from http://www.opensource.org/licenses/osl.php or |
| 12 | by writing the Open Source Initiative c/o Lawrence Rosen, Esq., |
| 13 | 3001 King Ranch Road, Ukiah, CA 95482. */ |
| 14 | |
| 15 | #ifdef HAVE_CONFIG_H |
| 16 | # include <config.h> |
| 17 | #endif |
| 18 | |
| 19 | #include <libdwP.h> |
| 20 | |
| 21 | |
| 22 | Dwarf_Arange * |
| 23 | dwarf_getarange_addr (aranges, addr) |
| 24 | Dwarf_Aranges *aranges; |
| 25 | Dwarf_Addr addr; |
| 26 | { |
| 27 | if (aranges == NULL) |
| 28 | return NULL; |
| 29 | |
| 30 | /* The ranges are sorted by address, so we can use binary search. */ |
| 31 | size_t l = 0, u = aranges->naranges; |
| 32 | while (l < u) |
| 33 | { |
| 34 | size_t idx = (l + u) / 2; |
| 35 | if (addr < aranges->info[idx].addr) |
| 36 | u = idx; |
| 37 | else if (addr > aranges->info[idx].addr |
| 38 | && addr - aranges->info[idx].addr >= aranges->info[idx].length) |
| 39 | l = idx + 1; |
| 40 | else |
| 41 | return &aranges->info[idx]; |
| 42 | } |
| 43 | |
| 44 | __libdw_seterrno (DWARF_E_NO_MATCH); |
| 45 | return NULL; |
| 46 | } |
| 47 | INTDEF(dwarf_getarange_addr) |