Branch data Line data Source code
1 : : /* Return tag of given DIE. 2 : : Copyright (C) 2003-2011, 2014 Red Hat, Inc. 3 : : This file is part of elfutils. 4 : : Written by Ulrich Drepper <drepper@redhat.com>, 2003. 5 : : 6 : : This file is free software; you can redistribute it and/or modify 7 : : it under the terms of either 8 : : 9 : : * the GNU Lesser General Public License as published by the Free 10 : : Software Foundation; either version 3 of the License, or (at 11 : : your option) any later version 12 : : 13 : : or 14 : : 15 : : * the GNU General Public License as published by the Free 16 : : Software Foundation; either version 2 of the License, or (at 17 : : your option) any later version 18 : : 19 : : or both in parallel, as here. 20 : : 21 : : elfutils is distributed in the hope that it will be useful, but 22 : : WITHOUT ANY WARRANTY; without even the implied warranty of 23 : : MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 24 : : General Public License for more details. 25 : : 26 : : You should have received copies of the GNU General Public License and 27 : : the GNU Lesser General Public License along with this program. If 28 : : not, see <http://www.gnu.org/licenses/>. */ 29 : : 30 : : #ifdef HAVE_CONFIG_H 31 : : # include <config.h> 32 : : #endif 33 : : 34 : : #include "libdwP.h" 35 : : 36 : : 37 : : Dwarf_Abbrev * 38 : : internal_function 39 : 32541094 : __libdw_findabbrev (struct Dwarf_CU *cu, unsigned int code) 40 : : { 41 : 32541094 : Dwarf_Abbrev *abb; 42 : : 43 : : /* Abbreviation code can never have a value of 0. */ 44 [ + + ]: 32541094 : if (unlikely (code == 0)) 45 : : return DWARF_END_ABBREV; 46 : : 47 : : /* See whether the entry is already in the hash table. */ 48 : 32541088 : abb = Dwarf_Abbrev_Hash_find (&cu->abbrev_hash, code); 49 [ + + ]: 32541088 : if (abb == NULL) 50 [ + + ]: 2564628 : while (cu->last_abbrev_offset != (size_t) -1l) 51 : : { 52 : 2564624 : size_t length; 53 : : 54 : : /* Find the next entry. It gets automatically added to the 55 : : hash table. */ 56 : 2564624 : abb = __libdw_getabbrev (cu->dbg, cu, cu->last_abbrev_offset, &length, 57 : : NULL); 58 [ + + ]: 2564624 : if (abb == NULL || abb == DWARF_END_ABBREV) 59 : : { 60 : : /* Make sure we do not try to search for it again. */ 61 : 2 : cu->last_abbrev_offset = (size_t) -1l; 62 : 2 : return DWARF_END_ABBREV; 63 : : } 64 : : 65 : 2564622 : cu->last_abbrev_offset += length; 66 : : 67 : : /* Is this the code we are looking for? */ 68 [ + + ]: 2564622 : if (abb->code == code) 69 : : break; 70 : : } 71 : : 72 : : /* This is our second (or third, etc.) call to __libdw_findabbrev 73 : : and the code is invalid. */ 74 [ + + ]: 32541086 : if (unlikely (abb == NULL)) 75 : 12 : abb = DWARF_END_ABBREV; 76 : : 77 : : return abb; 78 : : } 79 : : 80 : : 81 : : int 82 : 50703290 : dwarf_tag (Dwarf_Die *die) 83 : : { 84 : : /* Find the abbreviation entry. */ 85 : 50703290 : Dwarf_Abbrev *abbrevp = __libdw_dieabbrev (die, NULL); 86 [ + + ]: 50703290 : if (unlikely (abbrevp == DWARF_END_ABBREV)) 87 : : { 88 : 11578 : __libdw_seterrno (DWARF_E_INVALID_DWARF); 89 : 11578 : return DW_TAG_invalid; 90 : : } 91 : : 92 : 50691712 : return abbrevp->tag; 93 : : } 94 : : INTDEF(dwarf_tag)