Branch data     Line data    Source code

       1                 :            : /* Return one of the sources lines of a CU.
       2                 :            :    Copyright (C) 2005 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                 :            : 
      35                 :            : Dwfl_Line *
      36                 :     622078 : dwfl_onesrcline (Dwarf_Die *cudie, size_t idx)
      37                 :            : {
      38                 :     622078 :   struct dwfl_cu *cu = (struct dwfl_cu *) cudie;
      39                 :            : 
      40         [ -  + ]:     622078 :   if (cudie == NULL)
      41                 :            :     return NULL;
      42                 :            : 
      43         [ -  + ]:     622078 :   if (cu->lines == NULL)
      44                 :            :     {
      45                 :          0 :       Dwfl_Error error = __libdwfl_cu_getsrclines (cu);
      46         [ #  # ]:          0 :       if (error != DWFL_E_NOERROR)
      47                 :            :         {
      48                 :          0 :           __libdwfl_seterrno (error);
      49                 :          0 :           return NULL;
      50                 :            :         }
      51                 :            :     }
      52                 :            : 
      53         [ -  + ]:     622078 :   if (idx >= cu->die.cu->lines->nlines)
      54                 :            :     {
      55                 :          0 :       __libdwfl_seterrno (DWFL_E (LIBDW, DWARF_E_INVALID_LINE_IDX));
      56                 :          0 :       return NULL;
      57                 :            :     }
      58                 :            : 
      59                 :     622078 :   return &cu->lines->idx[idx];
      60                 :            : }