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 "../libdw/cfi.h"
      35             : 
      36             : Dwarf_CFI *
      37        2524 : dwfl_module_eh_cfi (Dwfl_Module *mod, Dwarf_Addr *bias)
      38             : {
      39        2524 :   if (mod == NULL)
      40             :     return NULL;
      41             : 
      42        2524 :   if (mod->eh_cfi != NULL)
      43             :     {
      44        2422 :       *bias = dwfl_adjusted_address (mod, 0);
      45        2422 :       return mod->eh_cfi;
      46             :     }
      47             : 
      48         102 :   __libdwfl_getelf (mod);
      49         102 :   if (mod->elferr != DWFL_E_NOERROR)
      50             :     {
      51          10 :       __libdwfl_seterrno (mod->elferr);
      52          10 :       return NULL;
      53             :     }
      54             : 
      55          92 :   *bias = dwfl_adjusted_address (mod, 0);
      56          92 :   return __libdwfl_set_cfi (mod, &mod->eh_cfi,
      57             :                             INTUSE(dwarf_getcfi_elf) (mod->main.elf));
      58             : }
      59             : INTDEF (dwfl_module_eh_cfi)