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       1                 :             : /* Update move structure at the given index.
       2                 :             :    Copyright (C) 2000, 2001, 2002, 2005, 2009, 2014, 2015 Red Hat, Inc.
       3                 :             :    This file is part of elfutils.
       4                 :             :    Written by Ulrich Drepper <drepper@redhat.com>, 2000.
       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 <assert.h>
      35                 :             : #include <gelf.h>
      36                 :             : #include <stdlib.h>
      37                 :             : 
      38                 :             : #include "libelfP.h"
      39                 :             : 
      40                 :             : 
      41                 :             : int
      42                 :           0 : gelf_update_move (Elf_Data *data, int ndx, GElf_Move *src)
      43                 :             : {
      44                 :           0 :   int result = 0;
      45                 :           0 :   Elf_Data_Scn *data_scn = (Elf_Data_Scn *) data;
      46                 :           0 :   Elf *elf;
      47                 :             : 
      48         [ #  # ]:           0 :   if (data == NULL)
      49                 :             :     return result;
      50                 :             : 
      51         [ #  # ]:           0 :   if (unlikely (data->d_type != ELF_T_MOVE))
      52                 :             :     {
      53                 :             :       /* The type of the data better should match.  */
      54                 :           0 :       __libelf_seterrno (ELF_E_DATA_MISMATCH);
      55                 :           0 :       return result;
      56                 :             :     }
      57                 :             : 
      58                 :           0 :   elf = data_scn->s->elf;
      59                 :           0 :   rwlock_wrlock (elf->lock);
      60                 :             : 
      61         [ #  # ]:           0 :   if (elf->class == ELFCLASS32)
      62                 :             :     {
      63                 :           0 :       Elf32_Move *move;
      64                 :             : 
      65                 :             :       /* Check whether input values are too large for 32 bit conversion.  */
      66         [ #  # ]:           0 :       if (unlikely (src->m_poffset > 0xffffffffull)
      67                 :           0 :           || unlikely (GELF_M_SYM (src->m_info) > 0xffffff)
      68         [ #  # ]:           0 :           || unlikely (GELF_M_SIZE (src->m_info) > 0xff))
      69                 :             :         {
      70                 :           0 :           __libelf_seterrno (ELF_E_INVALID_DATA);
      71                 :           0 :           goto out;
      72                 :             :         }
      73                 :             : 
      74                 :             :       /* Check whether we have to resize the data buffer.  */
      75         [ #  # ]:           0 :       if (INVALID_NDX (ndx, Elf32_Move, data))
      76                 :             :         {
      77                 :           0 :           __libelf_seterrno (ELF_E_INVALID_INDEX);
      78                 :           0 :           goto out;
      79                 :             :         }
      80                 :             : 
      81                 :           0 :       move = &((Elf32_Move *) data->d_buf)[ndx];
      82                 :             : 
      83                 :           0 :       move->m_value = src->m_value;
      84                 :           0 :       move->m_info = ELF32_M_INFO (GELF_M_SYM (src->m_info),
      85                 :             :                                    GELF_M_SIZE (src->m_info));
      86                 :           0 :       move->m_poffset = src->m_poffset;
      87                 :           0 :       move->m_repeat = src->m_repeat;
      88                 :           0 :       move->m_stride = src->m_stride;
      89                 :             :     }
      90                 :             :   else
      91                 :             :     {
      92                 :           0 :       eu_static_assert (sizeof (GElf_Move) == sizeof (Elf64_Move));
      93                 :             : 
      94                 :             :       /* Check whether we have to resize the data buffer.  */
      95         [ #  # ]:           0 :       if (INVALID_NDX (ndx, GElf_Move, data))
      96                 :             :         {
      97                 :           0 :           __libelf_seterrno (ELF_E_INVALID_INDEX);
      98                 :           0 :           goto out;
      99                 :             :         }
     100                 :             : 
     101                 :           0 :       ((Elf64_Move *) data->d_buf)[ndx] = *src;
     102                 :             :     }
     103                 :             : 
     104                 :           0 :   result = 1;
     105                 :             : 
     106                 :             :   /* Mark the section as modified.  */
     107                 :           0 :   data_scn->s->flags |= ELF_F_DIRTY;
     108                 :             : 
     109                 :             :  out:
     110                 :             :   rwlock_unlock (elf->lock);
     111                 :             : 
     112                 :             :   return result;
     113                 :             : }