libgoblin/drd64_libgoblin_elf_dynver.c

   1 /*DrDeAmOn64DrDeAmOn64DrDeAmOn64DrDeAmOn64DrDeAmOn64DrDeAmOn64DrDeAmOn64
   2
   3                          D r . D e a m o n  6 4
   4                         for INTEL64(R), AMD64(R)
   5
   6    Copyright(C) 2007-2009 Koine Yuusuke(koinec). All rights reserved.
   7
   8 Redistribution and use in source and binary forms, with or without
   9 modification, are permitted provided that the following conditions are met:
  10
  11  1. Redistributions of source code must retain the above copyright notice,
  12     this list of conditions and the following disclaimer.
  13  2. Redistributions in binary form must reproduce the above copyright
  14     notice, this list of conditions and the following disclaimer in the
  15     documentation and/or other materials provided with the distribution.
  16
  17 THIS SOFTWARE IS PROVIDED BY Koine Yuusuke(koinec) ``AS IS'' AND ANY
  18 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  19 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  20 DISCLAIMED. IN NO EVENT SHALL Koine Yuusuke(koinec) OR CONTRIBUTORS BE
  21 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  22 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  23 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  24 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  25 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  26 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  27 OF THE POSSIBILITY OF SUCH DAMAGE.
  28
  29 DrDeAmOn64DrDeAmOn64DrDeAmOn64DrDeAmOn64DrDeAmOn64DrDeAmOn64DrDeAmOn64*/
  30
  31 /* File Info -----------------------------------------------------------
  32 File: drd64_.c
  33 Function:
  34 Comment:
  35 ----------------------------------------------------------------------*/
  36
  37 #define DRD64_SRC_LIBGOBLIN_ELF_DYNVER
  38 #include"drd64_libgoblin.h"
  39
  40
  41 /*----------------------------------------------------------------------
  42 ----------------------------------------------------------------------*/
  43 LIBGOBLIN_ELF_DYNVER_EXTERN
  44 int
  45         LibGoblin_Elf_DynVer_ReadDynamicSection(
  46                 LibGoblin_BinaryInfo    *p_binfo )
  47 {
  48         Byte                                    *pb_data;
  49         Byte                                    *pb_dynstr;
  50         int                                             i_sz_elfdyn;
  51         QWord                                   qw_tag;
  52         QWord                                   qw_value;
  53         Ptr                                             ptr_addr;
  54         Elf64_Dyn                               *p_dyn64;
  55         Elf32_Dyn                               *p_dyn32;
  56         LibGoblin_BinaryInfo    *p_bintmp;
  57         LibGoblin_BinaryFile    *p_bfile;
  58         LibGoblin_SectionInfo   *p_sec_dynamic;
  59         LibGoblin_SectionInfo   *p_sec_dynstr;
  60         LibGoblin_ProgramInfo   *p_pginfo;
  61
  62         assert( NULL != p_binfo );
  63         p_bfile = p_binfo->p_binfile;
  64         p_pginfo        = (LibGoblin_ProgramInfo *)p_binfo->pv_pginfo;
  65
  66         // Read & Check SectionInfo ---
  67         p_sec_dynamic   = LibGoblin_Section_GetSectionInfo_fid(
  68                                                 p_binfo, LIBGOBLIN_SECTION_ID_DYNAMIC );
  69         if( NULL == p_sec_dynamic )             {
  70                 return 0x01;
  71         }
  72
  73         p_sec_dynstr    = LibGoblin_Section_GetSectionInfo_fid(
  74                                                 p_binfo, LIBGOBLIN_SECTION_ID_DYNSTR );
  75         if( NULL == p_sec_dynstr )              {
  76                 return 0x02;
  77         }
  78         pb_dynstr       = p_sec_dynstr->pb_data;
  79
  80         pb_data = p_sec_dynamic->pb_data;
  81         if( IsBinfoType_Elf64( p_binfo ) )
  82                 { i_sz_elfdyn   = sizeof( Elf64_Dyn ); }
  83         else
  84                 { i_sz_elfdyn   = sizeof( Elf32_Dyn ); }
  85
  86         do      {
  87                 if( IsBinfoType_Elf64( p_binfo ) )      {
  88                         p_dyn64 = (Elf64_Dyn *)pb_data;
  89
  90                         qw_tag          = (QWord)p_dyn64->d_tag;
  91                         qw_value        = (QWord)p_dyn64->d_un.d_val;
  92                         ptr_addr        = (Ptr)p_dyn64->d_un.d_ptr;
  93                 } else  {
  94                         p_dyn32 = (Elf32_Dyn *)pb_data;
  95
  96                         qw_tag          = (QWord)p_dyn32->d_tag;
  97                         qw_value        = (QWord)p_dyn32->d_un.d_val;
  98                         ptr_addr        = (Ptr)p_dyn32->d_un.d_ptr;
  99                 }
 100
 101                 if( DT_NEEDED == qw_tag )       {
 102                         p_bintmp        = ProgInfo_AddBinaryInfo(
 103                                                                 p_pginfo, ((char *)(pb_dynstr + qw_value)), p_binfo->i_id );
 104                 }
 105                 else if( DT_RPATH == qw_tag )   {
 106                         BinaryInfo_SetRPath( p_binfo, (const char *)(pb_dynstr + qw_value) );
 107                 }
 108                 //else if( DT_SONAME == qw_tag )        { }
 109
 110                 pb_data += i_sz_elfdyn;
 111         }while( DT_NULL != qw_tag );
 112
 113         return 0x00;
 114 }
 115
 116
 117 /* EOF of drd64_.c ----------------------------------- */