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       1                 :            : /* Iterate through DWARF compilation units across all modules.
       2                 :            :    Copyright (C) 2005-2010 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                 :            : #include "libdwflP.h"
      30                 :            : 
      31                 :            : Dwarf_Die *
      32                 :       3715 : dwfl_nextcu (Dwfl *dwfl, Dwarf_Die *lastcu, Dwarf_Addr *bias)
      33                 :            : {
      34         [ +  - ]:       3715 :   if (dwfl == NULL)
      35                 :            :     return NULL;
      36                 :            : 
      37                 :       3715 :   struct dwfl_cu *cu = (struct dwfl_cu *) lastcu;
      38                 :            :   Dwfl_Module *mod;
      39                 :            : 
      40         [ +  + ]:       3715 :   if (cu == NULL)
      41                 :            :     {
      42                 :         18 :       mod = dwfl->modulelist;
      43                 :         18 :       goto nextmod;
      44                 :            :     }
      45                 :            :   else
      46                 :       3697 :     mod = cu->mod;
      47                 :            : 
      48                 :            :   Dwfl_Error error;
      49                 :            :   do
      50                 :            :     {
      51                 :       3723 :       error = __libdwfl_nextcu (mod, cu, &cu);
      52         [ +  - ]:       3723 :       if (error != DWFL_E_NOERROR)
      53                 :            :         break;
      54                 :            : 
      55         [ +  + ]:       3723 :       if (cu != NULL)
      56                 :            :         {
      57                 :       3697 :           *bias = dwfl_adjusted_dwarf_addr (mod, 0);
      58                 :       3697 :           return &cu->die;
      59                 :            :         }
      60                 :            : 
      61                 :            :       do
      62                 :            :         {
      63                 :         26 :           mod = mod->next;
      64                 :            : 
      65                 :            :         nextmod:
      66         [ +  + ]:         44 :           if (mod == NULL)
      67                 :            :             return NULL;
      68                 :            : 
      69         [ +  - ]:         26 :           if (mod->dwerr == DWFL_E_NOERROR
      70         [ +  - ]:         26 :               && (mod->dw != NULL
      71         [ -  + ]:         26 :                   || INTUSE(dwfl_module_getdwarf) (mod, bias) != NULL))
      72                 :            :             break;
      73                 :            :         }
      74         [ #  # ]:          0 :       while (mod->dwerr == DWFL_E_NO_DWARF);
      75                 :         26 :       error = mod->dwerr;
      76                 :            :     }
      77         [ +  - ]:         26 :   while (error == DWFL_E_NOERROR);
      78                 :            : 
      79                 :       3715 :   __libdwfl_seterrno (error);
      80                 :            :   return NULL;
      81                 :            : }
      82                 :       3697 : INTDEF (dwfl_nextcu)