Branch data     Line data    Source code

       1                 :            : /* Find EH CFI for a module in libdwfl.
       2                 :            :    Copyright (C) 2009-2010 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 "libdwflP.h"
      34                 :            : #include "cfi.h"
      35                 :            : 
      36                 :            : Dwarf_CFI *
      37                 :       5252 : dwfl_module_eh_cfi (Dwfl_Module *mod, Dwarf_Addr *bias)
      38                 :            : {
      39         [ -  + ]:       5252 :   if (mod == NULL)
      40                 :            :     return NULL;
      41                 :            : 
      42         [ +  + ]:       5252 :   if (mod->eh_cfi != NULL)
      43                 :            :     {
      44                 :       5044 :       *bias = dwfl_adjusted_address (mod, 0);
      45                 :       5044 :       return mod->eh_cfi;
      46                 :            :     }
      47                 :            : 
      48                 :        208 :   __libdwfl_getelf (mod);
      49         [ +  + ]:        208 :   if (mod->elferr != DWFL_E_NOERROR)
      50                 :            :     {
      51                 :         20 :       __libdwfl_seterrno (mod->elferr);
      52                 :         20 :       return NULL;
      53                 :            :     }
      54                 :            : 
      55                 :        188 :   *bias = dwfl_adjusted_address (mod, 0);
      56                 :        188 :   return __libdwfl_set_cfi (mod, &mod->eh_cfi,
      57                 :            :                             INTUSE(dwarf_getcfi_elf) (mod->main.elf));
      58                 :            : }
      59                 :            : INTDEF (dwfl_module_eh_cfi)