libgoblin/drd64_libgoblin_dwarf.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_DWARF
  38 #include"drd64_libgoblin.h"
  39
  40 /*----------------------------------------------------------------------
  41 ----------------------------------------------------------------------*/
  42 LIBGOBLIN_DWARF_EXTERN
  43 int
  44         LibGoblin_IsDwarf(
  45                 LibGoblin_BinaryInfo    *p_bin )
  46 {
  47         Byte    *pb_data_abbrev;
  48         QWord   qw_size_abbrev;
  49
  50         assert( NULL != p_bin );
  51
  52         /* Get .debug_abbrev section Info */
  53         pb_data_abbrev  = ELF_GetSection(
  54                                                 &qw_size_abbrev, p_bin,
  55                                                 LIBGOBLIN_SECTION_ID_DEBUG_ABBREV );
  56         if( NULL == pb_data_abbrev )    { return 0x00; }
  57
  58         return 0x01;
  59 }
  60
  61
  62 /*----------------------------------------------------------------------
  63 ----------------------------------------------------------------------*/
  64 LIBGOBLIN_DWARF_EXTERN
  65 int
  66         LibGoblin_FreeDwarfInfo(
  67                 LibGoblin_BinaryInfo    *p_bin )
  68 {
  69         LibGoblin_Dwarf_AbbrevInfo              *p_abbrev;
  70         LibGoblin_Dwarf_SourceFile              *p_src;
  71         LibGoblin_Debug_Dwarf                   *p_dwarf;
  72
  73         assert( NULL != p_bin );
  74
  75         if( NULL == p_bin->p_debug )    { return 0x00; }
  76         p_dwarf = (LibGoblin_Debug_Dwarf *)p_bin->p_debug;
  77
  78         p_src   = p_dwarf->p_src;
  79         p_abbrev        = p_src->p_abbrev_info;
  80         free( p_abbrev );
  81         free( p_src );
  82         p_dwarf->p_src  = NULL;
  83
  84         free( p_bin->p_debug );
  85         p_bin->p_debug  = NULL;
  86
  87
  88         return 0x00;
  89 }
  90
  91
  92 /*----------------------------------------------------------------------
  93 ----------------------------------------------------------------------*/
  94 LIBGOBLIN_DWARF_EXTERN
  95 int
  96         LibGoblin_AnalyzeDwarf(
  97                 LibGoblin_BinaryInfo    *p_bin )
  98 {
  99         int             i_srcfilenum;
 100         int             i_abbrevs;
 101         int             i_err;
 102         LibGoblin_Debug_Dwarf   *p_dwarf;
 103         LibGoblin_Dwarf_SourceFile      *p_src;
 104
 105         assert( NULL != p_bin );
 106
 107         /* Alloc Debug-Info(Dwarf) Struct Memory */
 108         p_dwarf = (LibGoblin_Debug_Dwarf *)malloc( sizeof(LibGoblin_Debug_Dwarf) );
 109         if( NULL == p_dwarf )   { return 0x01; }
 110         memset( p_dwarf, 0x00, sizeof(LibGoblin_Debug_Dwarf) );
 111         p_bin->p_debug  = (void *)p_dwarf;
 112
 113         /* Get Source File Nums & Abbrev. Sturcture Nums */
 114         i_err   = LibGoblin_DwarfAbbrev_GetItems(
 115                                         &i_srcfilenum, &i_abbrevs, p_bin );
 116         if(( 0x00 != i_err ) || ( 0 == i_srcfilenum ))  { return 0x02; }
 117
 118         /* Alloc SourceFile Debug-Info Struct. Memory */
 119         p_src   = (LibGoblin_Dwarf_SourceFile *)malloc(
 120                                                 sizeof( LibGoblin_Dwarf_SourceFile) * i_srcfilenum );
 121         if( NULL == p_src )             { return 0x03; }
 122         memset( p_src, 0x00, sizeof(LibGoblin_Dwarf_SourceFile) * i_srcfilenum );
 123         p_dwarf->p_src                  = p_src;
 124         p_dwarf->i_srcfilenum   = i_srcfilenum;
 125
 126         /* Read .debug_abbrev section */
 127         LibGoblin_DwarfAbbrev_Read( p_bin, i_abbrevs );
 128
 129         /* Read .debug_abbrev section */
 130         LibGoblin_DwarfInfo_Analyze( p_bin );
 131
 132         /* Read .debug_line section */
 133         LibGoblin_DwarfLine_Analyze( p_bin );
 134
 135         puts("OK");
 136
 137
 138         return 0x00;
 139 }
 140
 141
 142 /* EOF of drd64_.c ----------------------------------- */