def init_and_prepare_from_file(self, file_):
"""This method initialise an ElfFile from a given File object."""
ident = ElfIdentification()
ident.fromdata(file_.get_data(0, ident.get_size()))
if file_.size() < ident.get_size():
self.wordsize = 0
self.sections = []
self.segments = []
return
self.wordsize = ident.wordsize
self.endianess = ident.endianess
header_data = file_.get_data(0, ELF_HEADER_CLASSES[self.wordsize].size())
hdr = ELF_HEADER_CLASSES[self.wordsize]()
hdr.fromdata(header_data)
self._initialise_header_information(hdr)
self._initialise_sections(hdr, file_)
self._initialise_symbol_tables(file_)
self._initialise_relocs(file_)
self._initialise_section_names()
self._initialise_segments(hdr, file_)
# FIXME: Mothra bug2591
# This code removes any zero-sized sections.
# Perhaps not the right place to do it, but works around linkder
# scripts that generate zero-sized sections. Note this may only
# be a problem due to stupid scatter-load handling.
self.sections = [s for s in self.sections if s.get_size() or not s.name]
for segment in self.segments:
if segment.has_sections():
segment.sections = [s for s in segment.sections if
s.get_size() or not s.name]
def init_and_prepare_from_file(self, f):
"""This method initialise an ElfFile from a given File object."""
ident = ElfIdentification()
ident.fromdata(f.get_data(0, ident.get_size()))
self.wordsize = ident.wordsize
self.endianess = ident.endianess
header_data = f.get_data(0, ELF_HEADER_CLASSES[self.wordsize].size())
hdr = ELF_HEADER_CLASSES[self.wordsize]()
hdr.fromdata(header_data)
self._initialise_header_information(hdr)
self._initialise_sections(hdr, f)
self._initialise_symbol_table(self.wordsize, self.endianess)
self._initialise_segments(hdr, f)
# FIXME: Mothra bug2591
# This code removes any zero-sized sections.
# Perhaps not the right place to do it, but works around linkder
# scripts that generate zero-sized sections. Note this may only
# be a problem due to stupid scatter-load handling.
self.sections = [
s for s in self.sections if s.get_size() or not s.name
]
for segment in self.segments:
if segment.has_sections():
segment.sections = [
s for s in segment.sections if s.get_size() or not s.name
]
def test_get_size(self):
self.assertEqual(ElfIdentification.get_size(), 16)
def test_get_size(self):
self.assertEqual(ElfIdentification.get_size(), 16)
