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       1                 :            : /* Conversion functions for notes.
       2                 :            :    Copyright (C) 2007, 2009 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                 :            : static void
      30                 :         44 : elf_cvt_note (void *dest, const void *src, size_t len, int encode)
      31                 :            : {
      32                 :            :   assert (sizeof (Elf32_Nhdr) == sizeof (Elf64_Nhdr));
      33                 :            : 
      34         [ +  + ]:        121 :   while (len >= sizeof (Elf32_Nhdr))
      35                 :            :     {
      36                 :            :       (1 ? Elf32_cvt_Nhdr : Elf64_cvt_Nhdr) (dest, src, sizeof (Elf32_Nhdr),
      37                 :            :                                              encode);
      38         [ +  + ]:         77 :       const Elf32_Nhdr *n = encode ? src : dest;
      39                 :         77 :       Elf32_Word namesz = NOTE_ALIGN (n->n_namesz);
      40                 :         77 :       Elf32_Word descsz = NOTE_ALIGN (n->n_descsz);
      41                 :            : 
      42                 :         77 :       len -= sizeof *n;
      43                 :         77 :       src += sizeof *n;
      44                 :         77 :       dest += sizeof *n;
      45                 :            : 
      46         [ +  - ]:         77 :       if (namesz > len)
      47                 :            :         break;
      48                 :         77 :       len -= namesz;
      49         [ +  - ]:         77 :       if (descsz > len)
      50                 :            :         break;
      51                 :         77 :       len -= descsz;
      52                 :            : 
      53         [ +  - ]:         77 :       if (src != dest)
      54                 :         77 :         memcpy (dest, src, namesz + descsz);
      55                 :            : 
      56                 :         77 :       src += namesz + descsz;
      57                 :         77 :       dest += namesz + descsz;
      58                 :            :     }
      59                 :         44 : }