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       1                 :            : /* Find DWARF 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                 :            : internal_function
      38                 :       4906 : __libdwfl_set_cfi (Dwfl_Module *mod, Dwarf_CFI **slot, Dwarf_CFI *cfi)
      39                 :            : {
      40   [ +  +  +  - ]:       4906 :   if (cfi != NULL && cfi->ebl == NULL)
      41                 :            :     {
      42                 :        172 :       Dwfl_Error error = __libdwfl_module_getebl (mod);
      43         [ +  - ]:        172 :       if (error == DWFL_E_NOERROR)
      44                 :        172 :         cfi->ebl = mod->ebl;
      45                 :            :       else
      46                 :            :         {
      47         [ #  # ]:          0 :           if (slot == &mod->eh_cfi)
      48                 :          0 :             INTUSE(dwarf_cfi_end) (cfi);
      49                 :          0 :           __libdwfl_seterrno (error);
      50                 :          0 :           return NULL;
      51                 :            :         }
      52                 :            :     }
      53                 :            : 
      54                 :       4906 :   return *slot = cfi;
      55                 :            : }
      56                 :            : 
      57                 :            : Dwarf_CFI *
      58                 :       4790 : dwfl_module_dwarf_cfi (Dwfl_Module *mod, Dwarf_Addr *bias)
      59                 :            : {
      60         [ +  - ]:       4790 :   if (mod == NULL)
      61                 :            :     return NULL;
      62                 :            : 
      63         [ +  + ]:       4790 :   if (mod->dwarf_cfi != NULL)
      64                 :            :     {
      65                 :         64 :       *bias = dwfl_adjusted_dwarf_addr (mod, 0);
      66                 :         64 :       return mod->dwarf_cfi;
      67                 :            :     }
      68                 :            : 
      69                 :       4726 :   return __libdwfl_set_cfi (mod, &mod->dwarf_cfi,
      70                 :            :                             INTUSE(dwarf_getcfi)
      71                 :            :                             (INTUSE(dwfl_module_getdwarf) (mod, bias)));
      72                 :            : }
      73                 :            : INTDEF (dwfl_module_dwarf_cfi)