Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 1 | /* Return flag represented by attribute. |
Roland McGrath | e160cc9 | 2009-07-16 17:48:27 -0700 | [diff] [blame] | 2 | Copyright (C) 2004-2009 Red Hat, Inc. |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 3 | This file is part of elfutils. |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 4 | Written by Ulrich Drepper <drepper@redhat.com>, 2004. |
| 5 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 6 | This file is free software; you can redistribute it and/or modify |
| 7 | it under the terms of either |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 8 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 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 |
Ulrich Drepper | 361df7d | 2006-04-04 21:38:57 +0000 | [diff] [blame] | 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 | |
Mark Wielaard | de2ed97 | 2012-06-05 17:15:16 +0200 | [diff] [blame] | 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/>. */ |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 29 | |
| 30 | #ifdef HAVE_CONFIG_H |
| 31 | # include <config.h> |
| 32 | #endif |
| 33 | |
| 34 | #include <dwarf.h> |
| 35 | #include "libdwP.h" |
| 36 | |
| 37 | |
| 38 | int |
| 39 | dwarf_formflag (attr, return_bool) |
| 40 | Dwarf_Attribute *attr; |
| 41 | bool *return_bool; |
| 42 | { |
| 43 | if (attr == NULL) |
| 44 | return -1; |
| 45 | |
Roland McGrath | e160cc9 | 2009-07-16 17:48:27 -0700 | [diff] [blame] | 46 | if (attr->form == DW_FORM_flag_present) |
| 47 | { |
| 48 | *return_bool = true; |
| 49 | return 0; |
| 50 | } |
| 51 | |
Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame] | 52 | if (unlikely (attr->form != DW_FORM_flag)) |
| 53 | { |
| 54 | __libdw_seterrno (DWARF_E_NO_FLAG); |
| 55 | return -1; |
| 56 | } |
| 57 | |
| 58 | *return_bool = *attr->valp != 0; |
| 59 | |
| 60 | return 0; |
| 61 | } |