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       1                 :            : /* Return flag represented by attribute.
       2                 :            :    Copyright (C) 2004-2009 Red Hat, Inc.
       3                 :            :    This file is part of elfutils.
       4                 :            :    Written by Ulrich Drepper <drepper@redhat.com>, 2004.
       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 <dwarf.h>
      35                 :            : #include "libdwP.h"
      36                 :            : 
      37                 :            : 
      38                 :            : int
      39                 :       9048 : dwarf_formflag (attr, return_bool)
      40                 :            :      Dwarf_Attribute *attr;
      41                 :            :      bool *return_bool;
      42                 :            : {
      43         [ +  - ]:       9048 :   if (attr == NULL)
      44                 :            :     return -1;
      45                 :            : 
      46         [ -  + ]:       9048 :   if (attr->form == DW_FORM_flag_present)
      47                 :            :     {
      48                 :          0 :       *return_bool = true;
      49                 :          0 :       return 0;
      50                 :            :     }
      51                 :            : 
      52         [ -  + ]:       9048 :   if (unlikely (attr->form != DW_FORM_flag))
      53                 :            :     {
      54                 :          0 :       __libdw_seterrno (DWARF_E_NO_FLAG);
      55                 :          0 :       return -1;
      56                 :            :     }
      57                 :            : 
      58                 :       9048 :   *return_bool = *attr->valp != 0;
      59                 :            : 
      60                 :       9048 :   return 0;
      61                 :            : }