def __init__(self, fd, inmem=False):
# Grab a 32bit header to use to check for other
# machine types...
e = vs_elf.Elf32()
fd.seek(0)
bytes = fd.read(len(e))
e.vsParse(bytes)
#Parse 32bit header
if e.e_class == ELFCLASS32:
vs_elf.Elf32.__init__(self)
self.bits = 32
self.psize = 4
self._cls_reloc = Elf32Reloc
self._cls_reloca = Elf32Reloca
self._cls_symbol = Elf32Symbol
self._cls_section = Elf32Section
#Parse 64bit header
elif e.e_class == ELFCLASS64:
vs_elf.Elf64.__init__(self)
self.bits = 64
self.psize = 8
self._cls_reloc = Elf64Reloc
self._cls_reloca = Elf64Reloca
self._cls_symbol = Elf64Symbol
self._cls_section = Elf64Section
else:
raise Exception('Unrecognized e_class: %d' % e.e_class)
self.fd = fd
bytes = self.readAtOffset(0, len(self))
self.vsParse(bytes)
if self.e_machine == EM_386:
self.r_types = r_types_386
elif self.e_machine == EM_X86_64:
self.r_types = r_types_amd64
else:
self.r_types = {}
self.pheaders = []
self.sections = []
self.secnames = {}
self.symbols = []
self.relocs = []
self.symbols_by_name = {}
self.symbols_by_addr = {}
self.dynamics = []
self.dynamic_symbols = []
self._parsePheaders()
self._parseSections()
self._parseSymbols()
self._parseDynamic()
self._parseRelocs()
def __init__(self, fd, inmem=False):
'''
Parse data from 'fd' and create an Elf object.
This process attempts to get as much information from DYNAMICS as
possible, then adds in data from SECTIONS.
'''
# Grab a 32bit header to use to check for other
# machine types...
e = vs_elf.Elf32()
fd.seek(0)
bytes = fd.read(len(e))
e.vsParse(bytes)
# if e_data == 1, then 32 bit, if e_data == 2, 64bit
bigend = (e.e_data == ELFDATA2MSB)
#Parse 32bit header
if e.e_class == ELFCLASS32:
vs_elf.Elf32.__init__(self, bigend=bigend)
self.bits = 32
self.psize = 4
self._cls_reloc = Elf32Reloc
self._cls_reloca = Elf32Reloca
self._cls_symbol = Elf32Symbol
self._cls_section = Elf32Section
#Parse 64bit header
elif e.e_class == ELFCLASS64:
vs_elf.Elf64.__init__(self, bigend=bigend)
self.bits = 64
self.psize = 8
self._cls_reloc = Elf64Reloc
self._cls_reloca = Elf64Reloca
self._cls_symbol = Elf64Symbol
self._cls_section = Elf64Section
else:
raise Exception('Unrecognized e_class: %d' % e.e_class)
self.fd = fd
self.inmem = inmem
self.bigend = bigend
bytes = self.readAtOffset(0, len(self))
self.vsParse(bytes)
if self.e_machine == EM_386:
self.r_types = r_types_386
elif self.e_machine == EM_X86_64:
self.r_types = r_types_amd64
else:
self.r_types = {}
self.pheaders = []
self.sections = []
self.secnames = {}
self.symbols = []
self.relocs = []
self.relocvas = []
self.symbols_by_name = {}
self.symbols_by_addr = {}
self.dynamics = [] # deprecated - 2019-10-21
self.dynamic_symbols = []
self.dynstrtabmeta = (None, None)
self.dynstrtab = []
self.dynsymtabct = None # populated by _parseDynStrs()
logger.info('self._parsePheaders')
self._parsePheaders()
logger.info('self._parseDynLinkInfo')
self._parseDynLinkInfo()
logger.info('self._parseSections')
self._parseSections()
logger.info('self._parseDynamicsFromSections')
self._parseDynamicsFromSections()
# load symbols and relocs from DYNAMICS
logger.info('self._parseDynStrs')
self._parseDynStrs()
logger.info('self._parseDynSyms')
self._parseDynSyms()
logger.info('self._parseDynRelocs')
self._parseDynRelocs()
# load symbols and relocs from SECTIONS
logger.info('self._parseDynSymsFromSections')
self._parseDynSymsFromSections()
logger.info('self._parseSectionSymbols')
self._parseSectionSymbols()
logger.info('self._parseSectionRelocs')
self._parseSectionRelocs()
logger.info('done parsing ELF')