Branch data     Line data    Source code

       1                 :             : /* Compute frame state at PC.
       2                 :             :    Copyright (C) 2009 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 "cfi.h"
      34                 :             : 
      35                 :             : int
      36                 :       13780 : dwarf_cfi_addrframe (Dwarf_CFI *cache, Dwarf_Addr address, Dwarf_Frame **frame)
      37                 :             : {
      38                 :             :   /* Maybe there was a previous error.  */
      39         [ +  + ]:       13780 :   if (cache == NULL)
      40                 :             :     return -1;
      41                 :             : 
      42                 :       13632 :   mutex_lock (cache->lock);
      43                 :       13632 :   struct dwarf_fde *fde = __libdw_find_fde (cache, address);
      44                 :       13632 :   mutex_unlock (cache->lock);
      45                 :             : 
      46         [ +  + ]:       13632 :   if (fde == NULL)
      47                 :             :     return -1;
      48                 :             : 
      49                 :       13378 :   int error = __libdw_frame_at_address (cache, fde, address, frame);
      50         [ -  + ]:       13378 :   if (error != DWARF_E_NOERROR)
      51                 :             :     {
      52                 :           0 :       __libdw_seterrno (error);
      53                 :           0 :       return -1;
      54                 :             :     }
      55                 :             :   return 0;
      56                 :             : }
      57                 :             : INTDEF (dwarf_cfi_addrframe)