1 /* Return DIE at given offset. 2 Copyright (C) 2002, 2003 Red Hat, Inc. 3 Written by Ulrich Drepper <drepper (at) redhat.com>, 2002. 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 <string.h> 20 #include "libdwP.h" 21 22 23 Dwarf_Die * 24 dwarf_offdie (dbg, offset, result) 25 Dwarf *dbg; 26 Dwarf_Off offset; 27 Dwarf_Die *result; 28 { 29 if (dbg == NULL) 30 return NULL; 31 32 if (offset >= dbg->sectiondata[IDX_debug_info]->d_size) 33 { 34 __libdw_seterrno (DWARF_E_INVALID_DWARF); 35 return NULL; 36 } 37 38 /* Clear the entire DIE structure. This signals we have not yet 39 determined any of the information. */ 40 memset (result, '\0', sizeof (Dwarf_Die)); 41 42 result->addr = (char *) dbg->sectiondata[IDX_debug_info]->d_buf + offset; 43 44 /* Get the CU. */ 45 result->cu = __libdw_findcu (dbg, offset); 46 if (result->cu == NULL) 47 { 48 /* This should never happen. The input file is malformed. */ 49 __libdw_seterrno (DWARF_E_INVALID_DWARF); 50 result = NULL; 51 } 52 53 return result; 54 } 55
