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       1                 :            : /* Get function information.
       2                 :            :    Copyright (C) 2005 Red Hat, Inc.
       3                 :            :    This file is part of elfutils.
       4                 :            :    Written by Ulrich Drepper <drepper@redhat.com>, 2005.
       5                 :            : 
       6                 :            :    This file is free software; you can redistribute it and/or modify
       7                 :            :    it under the terms of either
       8                 :            : 
       9                 :            :      * the GNU Lesser General Public License as published by the Free
      10                 :            :        Software Foundation; either version 3 of the License, or (at
      11                 :            :        your option) any later version
      12                 :            : 
      13                 :            :    or
      14                 :            : 
      15                 :            :      * the GNU General Public License as published by the Free
      16                 :            :        Software Foundation; either version 2 of the License, or (at
      17                 :            :        your option) any later version
      18                 :            : 
      19                 :            :    or both in parallel, as here.
      20                 :            : 
      21                 :            :    elfutils is distributed in the hope that it will be useful, but
      22                 :            :    WITHOUT ANY WARRANTY; without even the implied warranty of
      23                 :            :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      24                 :            :    General Public License for more details.
      25                 :            : 
      26                 :            :    You should have received copies of the GNU General Public License and
      27                 :            :    the GNU Lesser General Public License along with this program.  If
      28                 :            :    not, see <http://www.gnu.org/licenses/>.  */
      29                 :            : 
      30                 :            : #ifdef HAVE_CONFIG_H
      31                 :            : # include <config.h>
      32                 :            : #endif
      33                 :            : 
      34                 :            : #include <dwarf.h>
      35                 :            : #include "libdwP.h"
      36                 :            : 
      37                 :            : 
      38                 :            : ptrdiff_t
      39                 :       4406 : dwarf_getfuncs (Dwarf_Die *cudie, int (*callback) (Dwarf_Die *, void *),
      40                 :            :                 void *arg, ptrdiff_t offset)
      41                 :            : {
      42 [ +  - ][ +  + ]:       4406 :   if (unlikely (cudie == NULL
      43                 :            :                 || INTUSE(dwarf_tag) (cudie) != DW_TAG_compile_unit))
      44                 :            :     return -1;
      45                 :            : 
      46                 :            :   Dwarf_Die die_mem;
      47                 :            :   Dwarf_Die *die;
      48                 :            : 
      49                 :            :   int res;
      50         [ +  - ]:       3718 :   if (offset == 0)
      51                 :       3718 :     res = INTUSE(dwarf_child) (cudie, &die_mem);
      52                 :            :   else
      53                 :            :     {
      54                 :          0 :       die = INTUSE(dwarf_offdie) (cudie->cu->dbg, offset, &die_mem);
      55                 :          0 :       res = INTUSE(dwarf_siblingof) (die, &die_mem);
      56                 :            :     }
      57         [ +  + ]:       3718 :   die = res != 0 ? NULL : &die_mem;
      58                 :            : 
      59         [ +  + ]:     386805 :   while (die != NULL)
      60                 :            :     {
      61         [ +  + ]:     382399 :       if (INTUSE(dwarf_tag) (die) == DW_TAG_subprogram)
      62                 :            :         {
      63         [ -  + ]:      23501 :           if (callback (die, arg) != DWARF_CB_OK)
      64                 :          0 :             return INTUSE(dwarf_dieoffset) (die);
      65                 :            :         }
      66                 :            : 
      67         [ +  + ]:     382399 :       if (INTUSE(dwarf_siblingof) (die, &die_mem) != 0)
      68                 :            :         break;
      69                 :            :     }
      70                 :            : 
      71                 :            :   /* That's all.  */
      72                 :            :   return 0;
      73                 :            : }