X-Git-Url: https://git.alrj.org/?p=bold.git;a=blobdiff_plain;f=elf%2Felf.py;fp=elf%2Felf.py;h=0000000000000000000000000000000000000000;hp=d90e81e142416688e9eaec7e2deec7aa73b72bc9;hb=7eeaa837d3a6f29f9312bf29962214e709663e52;hpb=aa036795cb0ab7f31b9d78cfa562ccb603bc977a

diff --git a/elf/elf.py b/elf/elf.py
deleted file mode 100644
index d90e81e..0000000
--- a/elf/elf.py
+++ /dev/null
@@ -1,845 +0,0 @@
-# -*- coding: utf-8 -*-
-
-# kate: space-indent on; indent-width 2; mixedindent off; indent-mode python;
-
-# Copyright (C) 2009 Amand 'alrj' Tihon <amand.tihon@alrj.org>
-#
-# This file is part of bold, the Byte Optimized Linker.
-# Heavily inspired by elf.h from the GNU C Library.
-#
-# You can redistribute this file and/or modify it under the terms of the
-# GNU Lesser General Public License as published by the Free Software
-# Foundation, version 2.1.
-
-
-from BinArray import BinArray
-from constants import *
-import struct
-
-# Helpful decorator
-def nested_property(c):
-  return property(**c())
-
-#--------------------------------------------------------------------------
-#  Elf
-#--------------------------------------------------------------------------
-
-class Elf64(object):
-  """Handles an Elf64 object."""
-  interpreter = "/lib64/ld-linux-x86-64.so.2"
-
-  def __init__(self, path=None):
-    object.__init__(self)
-    self.header = Elf64_Ehdr()
-    self.header.owner = self
-    self.shdrs = []
-    self.phdrs = []
-    self.shlibs = []
-    self.sections = {}
-    self.segments = []
-    self.local_symbols = {}
-    self.global_symbols = {}
-    self.undefined_symbols = []
-
-    if path:
-      self.fromfile(path)
-
-  def fromfile(self, path):
-    f = file(path, "rb")
-
-    # Load Elf header
-    data = BinArray()
-    data.fromfile(f, Elf64_Ehdr.size)
-    self.header.fromBinArray(data)
-
-    # Load sections headers
-    f.seek(self.header.e_shoff)
-    for i in range(self.header.e_shnum):
-      data = BinArray()
-      data.fromfile(f, self.header.e_shentsize)
-      h = Elf64_Shdr(i, data)
-      h.owner = self
-      self.shdrs.append(h)
-
-    # Read sections content
-    for sh in self.shdrs:
-      data = BinArray()
-      if sh.sh_type != SHT_NOBITS:
-        f.seek(sh.sh_offset)
-        data.fromfile(f, sh.sh_size)
-      sh.content = data
-
-    f.close()
-
-  def resolve_names(self):
-    # The .shstrtab index is in Elf Header. find the sections names
-    strtab = self.shdrs[self.header.e_shstrndx].content
-
-    for sh in self.shdrs:
-      sh.name = strtab[int(sh.sh_name)]
-      self.sections[sh.name] = sh
-
-      # And resolve names in the section itself
-      sh.resolve_names()
-
-
-  def find_symbols(self):
-    for sh in self.shdrs:
-      if sh.sh_type == SHT_SYMTAB:
-        symtab = sh.content.symtab
-
-        for symbol in symtab:
-          if symbol.st_type == STT_FILE:
-            continue
-          if symbol.st_shndx == SHN_ABS:
-            continue
-          if symbol.st_shndx == SHN_UNDEF:
-            if symbol.name:
-              self.undefined_symbols.append(symbol.name)
-            continue
-
-          target_section = self.shdrs[symbol.st_shndx]
-
-          symbol_name = symbol.name
-          value = symbol.st_value
-          bind = symbol.st_binding
-
-          # We got a name, a target section, and an offset in the section
-          if symbol.st_binding == STB_LOCAL:
-            if symbol.st_type == STT_SECTION:
-              symbol_name = target_section.name
-            self.local_symbols[symbol_name] = (target_section, value)
-          else:
-            self.global_symbols[symbol_name] = (target_section, value)
-
-  def apply_relocation(self, all_global_symbols):
-    # find relocation tables
-    relocations = [sh for sh in self.shdrs if sh.sh_type in [SHT_REL, SHT_RELA]]
-    for sh in relocations:
-      target = sh.target.content
-
-      for reloc in sh.content.relatab:
-        
-        if reloc.symbol.st_shndx == SHN_UNDEF:
-          # This is an extern symbol, find it in all_global_symbols
-          sym_address = all_global_symbols[reloc.symbol.name]
-          print "0x%x" % sym_address
-        else:
-          # source == in which section it is defined
-          source = self.shdrs[reloc.symbol.st_shndx].content
-          sym_address = source.virt_addr + reloc.symbol.st_value
-
-        target_ba = target.data # The actual BinArray that we'll modify
-        pc_address = target.virt_addr + reloc.r_offset
-
-        if reloc.r_type == R_X86_64_64:
-          format = "<Q" # Direct 64 bit address
-          target_value = sym_address + reloc.r_addend
-        elif reloc.r_type == R_X86_64_PC32:
-          format = "<i" # PC relative 32 bit signed
-          target_value = sym_address + reloc.r_addend - pc_address
-        elif reloc.r_type == R_X86_64_32:
-          format = "<I" # Direct 32 bit zero extended
-          target_value = sym_address + reloc.r_addend
-        elif reloc.r_type == R_X86_64_PC16:
-          format = "<h" # 16 bit sign extended pc relative
-          target_value = sym_address + reloc.r_addend - pc_address
-        elif reloc.r_type == R_X86_64_16:
-          format = "<H" # Direct 16 bit zero extended
-          target_value = sym_address + reloc.r_addend
-        elif reloc.r_type == R_X86_64_PC8:
-          format = "b" # 8 bit sign extended pc relative
-          target_value = sym_address + reloc.r_addend - pc_address
-        elif reloc.r_type == R_X86_64_8:
-          format = "b" # Direct 8 bit sign extended
-          target_value = sym_address + reloc.r_addend
-        else:
-          print "Unsupported relocation type: %s" % reloc.r_type
-          exit(1)
-
-        d = BinArray(struct.pack(format, target_value))
-        start = reloc.r_offset
-        end = start + len(d)
-        target_ba[start:end] = d
-
-
-  def add_phdr(self, phdr):
-    self.phdrs.append(phdr)
-    self.header.e_phnum = len(self.phdrs)
-    phdr.owner = self
-
-  def add_segment(self, segment):
-    self.segments.append(segment)
-
-  def layout(self, base_vaddr):
-    """Do the actual layout for final executable."""
-
-    virt_addr = base_vaddr
-    file_offset = 0
-    self.virt_addr = base_vaddr
-    self.file_offset = file_offset
-    for s in self.segments:
-        virt_addr += s.align
-        s.virt_addr = virt_addr
-        s.file_offset = file_offset
-        s.layout()
-        virt_addr += s.logical_size
-        file_offset += s.physical_size
-
-  def toBinArray(self):
-    ba = BinArray()
-    for s in self.segments:
-      ba.extend(s.toBinArray())
-    return ba
-
-
-#--------------------------------------------------------------------------
-#  Elf file header
-#--------------------------------------------------------------------------
-
-class Elf64_eident(object):
-  """Detailed representation for the Elf identifier."""
-  format = "16B"
-  size = struct.calcsize(format)
-  physical_size = size
-  logical_size = size
-
-  def __init__(self, rawdata=None):
-    object.__init__(self)
-    if rawdata:
-      self.fromBinArray(rawdata)
-
-  def fromBinArray(self, rawdata):
-    t = struct.unpack(self.format, rawdata)
-    self.ei_magic = rawdata[:4]
-    self.ei_class = ElfClass(rawdata[4])
-    self.ei_data = ElfData(rawdata[5])
-    self.ei_version = ElfVersion(rawdata[6])
-    self.ei_osabi = ElfOsAbi(rawdata[7])
-    self.ei_abiversion = 0
-    self.ei_pad = [0, 0, 0, 0, 0, 0, 0]
-
-  def make_default_amd64(self):
-    self.ei_magic = BinArray([0x7f, 0x45, 0x4c, 0x46])
-    self.ei_class = ELFCLASS64
-    self.ei_data = ELFDATA2LSB
-    self.ei_version = EV_CURRENT
-    self.ei_osabi = ELFOSABI_SYSV
-    self.ei_abiversion = 0
-    self.ei_pad = [0, 0, 0, 0, 0, 0, 0]
-
-  def toBinArray(self):
-    ba = BinArray(self.ei_magic)
-    ba.append(self.ei_class)
-    ba.append(self.ei_data)
-    ba.append(self.ei_version)
-    ba.append(self.ei_osabi)
-    ba.append(self.ei_abiversion)
-    ba.extend(self.ei_pad)
-    return ba
-
-
-class Elf64_Ehdr(object):
-  """Elf file header"""
-  format = "<16B 2H I 3Q I 6H"
-  size = struct.calcsize(format)
-  physical_size = size
-  logical_size = size
-  
-  def __init__(self, rawdata=None):
-    object.__init__(self)
-    self.e_ident = Elf64_eident()
-    self.e_type = ET_NONE
-    self.e_machine = EM_X86_64
-    self.e_version = EV_CURRENT
-    self.e_entry = 0
-    self.e_phoff = 0
-    self.e_shoff = 0
-    self.e_flags = 0
-    self.e_ehsize = self.size
-    self.e_phentsize = Elf64_Phdr.size
-    self.e_phnum = 0
-    self.e_shentsize = Elf64_Shdr.size
-    self.e_shnum = 0
-    self.e_shstrndx = 0
-    if rawdata:
-      self.fromBinArray(rawdata)
-
-  def fromBinArray(self, rawdata):
-    t = struct.unpack(self.format, rawdata)
-    self.e_ident = Elf64_eident(BinArray(rawdata[:16]))
-    self.e_type = ElfType(t[16])
-    self.e_machine = ElfMachine(t[17])
-    self.e_version = ElfVersion(t[18])
-    self.e_entry = t[19]
-    self.e_phoff = t[20]
-    self.e_shoff = t[21]
-    self.e_flags = t[22]
-    self.e_ehsize = t[23]
-    self.e_phentsize = t[24]
-    self.e_phnum = t[25]
-    self.e_shentsize = t[26]
-    self.e_shnum = t[27]
-    self.e_shstrndx = t[28]
-
-  def toBinArray(self):
-    # Build a list from e_ident and all other fields, to feed struct.pack.
-    values = self.e_ident.toBinArray().tolist()
-    values.extend([self.e_type, self.e_machine, self.e_version, self.e_entry,
-      self.e_phoff, self.e_shoff, self.e_flags, self.e_ehsize, self.e_phentsize,
-      self.e_phnum, self.e_shentsize, self.e_shnum, self.e_shstrndx])
-    res = struct.pack(self.format, *values)
-    return BinArray(res)
-
-  def layout(self):
-    pass
-
-
-#--------------------------------------------------------------------------
-#  Elf Sections
-#--------------------------------------------------------------------------
-
-class Elf64_Shdr(object):
-  """Elf64 section header."""
-  format = "<2I 4Q 2I 2Q"
-  size = struct.calcsize(format)
-  physical_size = size
-  logical_size = size
-  
-  def __init__(self, index=None, rawdata=None):
-    object.__init__(self)
-    self.index = index
-    if rawdata:
-      self.fromBinArray(rawdata)
-
-  def fromBinArray(self, rawdata):
-    t = struct.unpack(self.format, rawdata)
-    self.sh_name = t[0]
-    self.sh_type = ElfShType(t[1])
-    self.sh_flags = t[2]
-    self.sh_addr = t[3]
-    self.sh_offset = t[4]
-    self.sh_size = t[5]
-    self.sh_link = t[6]
-    self.sh_info = t[7]
-    self.sh_addralign = t[8]
-    self.sh_entsize = t[9]
-
-  def resolve_names(self):
-    self.content.resolve_names(self.owner)
-
-  @nested_property
-  def content():
-    def fget(self):
-      return self._content
-    def fset(self, data):
-      """Use the Section factory to get the subclass corresponding to the
-         session type specified in this header)."""
-      self._content = Section(self, data)
-    return locals()
-
-# For sections that contain elements of specific types :
-
-class Elf64_Sym(object):
-  """Symbol Table entry"""
-  format = "<I 2B H 2Q "
-  entsize = struct.calcsize(format)
-  def __init__(self, rawdata=None):
-    object.__init__(self)
-    if rawdata:
-      self.fromBinArray(rawdata)
-
-  @nested_property
-  def st_binding():
-    def fget(self):
-      return ElfSymbolBinding((self.st_info >> 4) & 0x0f)
-    def fset(self, value):
-      self.st_info = (((value & 0x0f) << 4) | (self.st_info & 0x0f))
-    return locals()
-
-  @nested_property
-  def st_type():
-    def fget(self):
-       return ElfSymbolType(self.st_info & 0x0f)
-    def fset(self, value):
-      self.st_info = ((self.st_info & 0xf0) | (value & 0x0f))
-    return locals()
-
-  @nested_property
-  def st_visibility():
-    def fget(self):
-      return ElfSymbolVisibility(self.st_other & 0x03)
-    def fset(self, value):
-      self.st_other = ((self.st_other & 0xfc) | (value & 0x03))
-    return locals()
-
-  def fromBinArray(self, rawdata):
-    t = struct.unpack(self.format, rawdata)
-    self.st_name = t[0] # index in the strtab pointed by sh_link
-    self.st_info = t[1]
-    self.st_other = t[2]
-    self.st_shndx = ElfSectionIndex(t[3])
-    self.st_value = t[4]
-    self.st_size = t[5]
-
-
-class Elf64_Rel(object):
-  format = "<2Q"
-  def __init__(self, rawdata=None):
-    object.__init__(self)
-    self.r_addend = 0 # No addend in a Rel.
-    if rawdata:
-      self.fromBinArray(rawdata)
-
-  def fromBinArray(sef, rawdata):
-    t = struct.unpack(self.format, rawdata)
-    self.r_offset = t[0]
-    self.r_info = t[1]
-
-  @nested_property
-  def r_sym():
-    def fget(self):
-      return (self.r_info >> 32) & 0xffffffff
-    def fset(self, value):
-      self.r_info = ((value & 0xffffffff) << 32) | (self.r_info & 0xffffffff)
-    return locals()
-
-  @nested_property
-  def r_type():
-    def fget(self):
-      return Amd64Relocation(self.r_info & 0xffffffff)
-    def fset(self, value):
-      self.r_info = (self.r_info & 0xffffffff00000000) | (value & 0xffffffff)
-    return locals()
-
-
-class Elf64_Rela(Elf64_Rel):
-  format = "<2Q q"
-  def __init__(self, rawdata=None):
-    Elf64_Rel.__init__(self, rawdata)
-
-  def fromBinArray(self, rawdata):
-    t = struct.unpack(self.format, rawdata)
-    self.r_offset = t[0]
-    self.r_info = t[1]
-    self.r_addend = t[2]
-
-
-class Elf64_Dyn(object):
-  format = "<2Q"
-  size = struct.calcsize(format)
-  def __init__(self, tag, value):
-    object.__init__(self)
-    self.d_tag = tag
-    self.d_val = value
-
-  @nested_property
-  def d_ptr():
-    def fget(self):
-      return self.d_val
-    def fset(self, value):
-      self.d_val = value
-    return locals()
-
-
-# Sections types :
-
-def Section(shdr, data=None):
-  """A section factory"""
-  dataclass = {
-    SHT_NULL:           SNull,
-    SHT_PROGBITS:       SProgBits,
-    SHT_SYMTAB:         SSymtab,
-    SHT_STRTAB:         SStrtab,
-    SHT_RELA:           SRela,
-    SHT_HASH:           SHash,
-    SHT_DYNAMIC:        SDynamic,
-    SHT_NOTE:           SNote,
-    SHT_NOBITS:         SNobits,
-    SHT_REL:            SRel,
-    SHT_SHLIB:          SShlib,
-    SHT_DYNSYM:         SDynsym
-  }
-  if shdr.sh_type in dataclass:
-    return dataclass[shdr.sh_type](shdr, data)
-  else:
-    return BaseSection(shdr, data)
-
-
-class BaseSection(object):
-  def __init__(self, shdr, data=None):
-    object.__init__(self)
-    self.data = None
-    self.header = shdr
-    if data:
-      self.fromBinArray(data)
-
-  def fromBinArray(self, data):
-    self.data = data
-
-  def toBinArray(self):
-    if self.data:
-      return self.data
-    else:
-      return BinArray()
-
-  def resolve_names(self, elf):
-    """Nothing to resolve."""
-    pass
-
-  @nested_property
-  def size():
-    def fget(self):
-      return len(self.data)
-    return locals()
-  physical_size = size
-  logical_size = size
-
-  def layout(self):
-    pass
-
-
-class SNull(BaseSection):
-  def __init__(self, shdr, data=None):
-    BaseSection.__init__(self, shdr, None)
-
-
-class SProgBits(BaseSection):
-  def __init__(self, shdr, data=None):
-    BaseSection.__init__(self, shdr, data)
-
-
-class SSymtab(BaseSection):
-  entsize = struct.calcsize(Elf64_Sym.format)
-  def __init__(self, shdr, data=None):
-    self.symtab = []
-    BaseSection.__init__(self, shdr, data)
-
-  def fromBinArray(self, data):
-    BaseSection.fromBinArray(self, data)
-    nument = len(data) / self.entsize
-    for i in range(nument):
-      start = i * self.entsize
-      end = i * self.entsize + self.entsize
-      self.symtab.append(Elf64_Sym(data[start:end]))
-
-  def resolve_names(self, elf):
-    # For a symtab, the strtab is indicated by sh_link
-    strtab = elf.shdrs[self.header.sh_link].content
-    # Resolve for all symbols in the table
-    for sym in self.symtab:
-      sym.name = strtab[sym.st_name]
-
-  def __getitem__(self, key):
-    return self.symtab[key]
-
-
-class SStrtab(BaseSection):
-  def __init__(self, shdr, data=None):
-    self.strtab = {}
-    BaseSection.__init__(self, shdr, data)
-
-  def fromBinArray(self, data):
-    BaseSection.fromBinArray(self, data)
-    itab = data.tostring().split('\0')
-    i = 0
-    for sname in itab:
-      self.strtab[i] = sname
-      i += len(sname) + 1
-
-  def __getitem__(self, key):
-    if key in self.strtab:
-      return self.strtab[key]
-    else:
-      v = self.data[key:].tostring().split('\0')[0]
-      self.strtab[key] = v
-      return v
-
-  def iteritems(self):
-    return self.strtab.iteritems()
-
-
-class SRela(BaseSection):
-  entsize = struct.calcsize(Elf64_Rela.format)
-  def __init__(self, shdr, data=None):
-    self.relatab = []
-    BaseSection.__init__(self, shdr, data)
-
-  def fromBinArray(self, data):
-    BaseSection.fromBinArray(self, data)
-    nument = len(data) / self.entsize
-    for i in range(nument):
-      start = i * self.entsize
-      end = i * self.entsize + self.entsize
-      self.relatab.append(Elf64_Rela(data[start:end]))
-
-  def resolve_names(self, elf):
-    """Badly named, this wil resolve to a symtab entry..."""
-    # sh_link leads to the symtab
-    self.symtab = elf.shdrs[self.header.sh_link].content
-    # sh_info links to the section on which the relocation applies
-    self.header.target = elf.shdrs[self.header.sh_info]
-    for r in self.relatab:
-      r.symbol = self.symtab[r.r_sym]
-      
-    
-
-class SHash(BaseSection):
-  pass
-
-
-class SDynamic(BaseSection):
-  pass
-
-
-class SNote(BaseSection):
-  pass
-
-
-class SNobits(BaseSection):
-  size = 0
-  physical_size = 0
-
-  @nested_property
-  def logical_size():
-    def fget(self):
-      return self.header.sh_size
-    return locals()
-
-  def toBinArray(self):
-    return BinArray()
-
-class SRel(BaseSection):
-  pass
-
-
-class SShlib(BaseSection):
-  pass
-
-
-class SDynsym(SSymtab):
-  pass
-
-
-class Elf64_Phdr(object):
-  format = "<2I 6Q"
-  size = struct.calcsize(format)
-  physical_size = size
-  logical_size = size
-
-  def __init__(self):
-    object.__init__(self)
-    self.p_type = PT_NULL
-    self.p_flags = PF_X + PF_W + PF_R
-    self.p_offset = 0
-    self.p_vaddr = 0
-    self.p_paddr = 0
-    self.p_filesz = 0
-    self.p_memsz = 0
-    self.p_align = 1
-    #self.content = []
-    #self.nobits = []
-
-  def toBinArray(self):
-    res = struct.pack(self.format, self.p_type, self.p_flags, self.p_offset,
-      self.p_vaddr, self.p_paddr, self.p_filesz, self.p_memsz, self.p_align)
-    return BinArray(res)
-
-  def layout(self):
-    pass
-
-  #def add_content(self, content):
-  #  self.content.append(content)
-
-  #def add_empty_content(self, content):
-  #  self.nobits.append(content)
-
-  #@nested_property
-  #def content_size():
-  #  def fget(self):
-  #    return sum(s.sh_size for s in self.content)
-  #  return locals()
-
-
-class BaseSegment(object):
-  def __init__(self, align=0):
-    object.__init__(self)
-    self.align = align
-    self.content = []
-
-  def add_content(self, content):
-    self.content.append(content)
-
-  def toBinArray(self):
-    ba = BinArray()
-    for c in self.content:
-      ba.extend(c.toBinArray())
-    return ba
-
-  @nested_property
-  def size():
-    def fget(self):
-      return sum(c.size for c in self.content)
-    return locals()
-  physical_size = size
-  logical_size = size
-
-
-class TextSegment(BaseSegment):
-  def __init__(self, align=0):
-    BaseSegment.__init__(self, align)
-
-  def layout(self):
-    virt_addr = self.virt_addr
-    file_offset = self.file_offset
-    for i in self.content:
-      i.virt_addr = virt_addr
-      i.file_offset = file_offset
-      i.layout()
-      virt_addr += i.logical_size
-      file_offset += i.physical_size
-
-
-class DataSegment(BaseSegment):
-  def __init__(self, align=0):
-    BaseSegment.__init__(self, align)
-    self.nobits = []
-
-  def add_nobits(self, content):
-    self.nobits.append(content)
-
-  def layout(self):
-    virt_addr = self.virt_addr
-    file_offset = self.file_offset
-    for i in self.content:
-      i.virt_addr = virt_addr
-      i.file_offset = file_offset
-      i.layout()
-      virt_addr += i.logical_size
-      file_offset += i.physical_size
-    for i in self.nobits:
-      i.virt_addr = virt_addr
-      i.file_offset = 0
-      i.layout()
-      virt_addr += i.logical_size
-
-  @nested_property
-  def logical_size():
-    def fget(self):
-      return self.physical_size + sum(c.logical_size for c in self.nobits)
-    return locals()
-
-
-
-class PStrtab(object):
-  def __init__(self):
-    object.__init__(self)
-    self.table = []
-    self.virt_addr = None
-
-  def append(self, string):
-    if len(self.table):
-      offset = self.table[-1][0]
-      offset += len(self.table[-1][1])
-    else:
-      offset = 0
-    new_str = string + '\0'
-    self.table.append((offset, new_str))
-    return offset
-
-  @nested_property
-  def size():
-    def fget(self):
-      return (self.table[-1][0] + len(self.table[-1][1]))
-    return locals()
-  physical_size = size
-  logical_size = size
-
-  def toBinArray(self):
-    ba = BinArray()
-    for s in (i[1] for i in self.table):
-      ba.fromstring(s)
-    return ba
-
-  def layout(self):
-    pass
-
-
-class Dynamic(object):
-  def __init__(self):
-    object.__init__(self)
-    self.dyntab = []
-    self.strtab = PStrtab()
-
-  @nested_property
-  def size():
-    def fget(self):
-      # End the table with a DT_NULL without associated value.
-      return (Elf64_Dyn.size * len(self.dyntab) + struct.calcsize("Q"))
-    return locals()
-  physical_size = size
-  logical_size = size
-
-  def add_shlib(self, shlib):
-    offset = self.strtab.append(shlib)
-    self.dyntab.append((DT_NEEDED, offset))
-
-  def add_symtab(self, vaddr):
-    self.dyntab.append((DT_SYMTAB, vaddr))
-
-  def add_debug(self):
-    self.dyntab.append((DT_DEBUG, 0))
-
-  def layout(self):
-    # Adjust the address of the strtab, if 
-    if self.strtab.virt_addr is None:
-      print "Ooops, strtab's address is not known yet. Aborting."
-      exit(1)
-    else:
-      self.dyntab.append((DT_STRTAB, self.strtab.virt_addr))
-
-  @nested_property
-  def dt_debug_address():
-    def fget(self):
-      for i, d in enumerate(self.dyntab):
-        if d[0] == DT_DEBUG:
-          return self.virt_addr + (i*16 + 8)
-    return locals()
-    
-
-  def toBinArray(self):
-    ba = BinArray()
-    for i in self.dyntab:
-      s = struct.pack("<2Q", i[0], i[1])
-      ba.fromstring(s)
-    null = struct.pack("<Q", DT_NULL)
-    ba.fromstring(null)
-    return ba
-
-
-class Interpreter(object):
-  default_interpreter = "/lib64/ld-linux-x86-64.so.2"
-
-  def __init__(self, interpreter=None):
-    object.__init__(self)
-    if interpreter:
-      self.interpreter = interpreter
-    else:
-      self.interpreter = self.default_interpreter
-
-  @nested_property
-  def size():
-    def fget(self):
-      # Null terminated
-      return len(self.interpreter) + 1
-    return locals()
-  physical_size = size
-  logical_size = size
-
-  def toBinArray(self):
-    ba = BinArray(self.interpreter)
-    ba.append(0)
-    return ba
-
-  def layout(self):
-    pass