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1 : : /* Return offset of DIE. 2 : : Copyright (C) 2018 Red Hat, Inc. 3 : : This file is part of elfutils. 4 : : 5 : : This file is free software; you can redistribute it and/or modify 6 : : it under the terms of either 7 : : 8 : : * the GNU Lesser General Public License as published by the Free 9 : : Software Foundation; either version 3 of the License, or (at 10 : : your option) any later version 11 : : 12 : : or 13 : : 14 : : * the GNU General Public License as published by the Free 15 : : Software Foundation; either version 2 of the License, or (at 16 : : your option) any later version 17 : : 18 : : or both in parallel, as here. 19 : : 20 : : elfutils is distributed in the hope that it will be useful, but 21 : : WITHOUT ANY WARRANTY; without even the implied warranty of 22 : : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 23 : : General Public License for more details. 24 : : 25 : : You should have received copies of the GNU General Public License and 26 : : the GNU Lesser General Public License along with this program. If 27 : : not, see <http://www.gnu.org/licenses/>. */ 28 : : 29 : : #ifdef HAVE_CONFIG_H 30 : : # include <config.h> 31 : : #endif 32 : : 33 : : #include <string.h> 34 : : 35 : : #include <dwarf.h> 36 : : #include "libdwP.h" 37 : : 38 : : 39 : : Dwarf_Die * 40 : 1281766 : dwarf_die_addr_die (Dwarf *dbg, void *addr, Dwarf_Die *result) 41 : : { 42 [ - + ]: 1281766 : if (dbg == NULL) 43 : : return NULL; 44 : : 45 : 1281766 : Dwarf_CU *cu = __libdw_findcu_addr (dbg, addr); 46 : : 47 [ + + ]: 1281766 : if (cu == NULL) 48 : : { 49 : 326 : Dwarf *alt = INTUSE (dwarf_getalt) (dbg); 50 [ + + ]: 326 : if (alt != NULL) 51 : 30 : cu = __libdw_findcu_addr (alt, addr); 52 : : } 53 : : 54 [ + + ]: 326 : if (cu == NULL) 55 : : { 56 : 296 : Dwarf *split = __libdw_find_split_dbg_addr (dbg, addr); 57 [ + - ]: 296 : if (split != NULL) 58 : 296 : cu = __libdw_findcu_addr (split, addr); 59 : : } 60 : : 61 [ - + ]: 1281736 : if (cu == NULL) 62 : : { 63 : 0 : memset (result, '\0', sizeof (Dwarf_Die)); 64 : 0 : return NULL; 65 : : } 66 : : 67 : 1281766 : *result = (Dwarf_Die) { .addr = addr, .cu = cu }; 68 : : 69 : 1281766 : return result; 70 : : }