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       94022 : dwfl_onesrcline (Dwarf_Die *cudie, size_t idx)
      37             : {
      38       94022 :   struct dwfl_cu *cu = (struct dwfl_cu *) cudie;
      39             : 
      40       94022 :   if (cudie == NULL)
      41             :     return NULL;
      42             : 
      43       94022 :   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       94022 :   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       94022 :   return &cu->lines->idx[idx];
      60             : }