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#-------------------------------------------------------------------------------
# elftools tests
#
# Eli Bendersky (eliben@gmail.com)
# This code is in the public domain
#-------------------------------------------------------------------------------
import unittest
import os
from elftools.elf.elffile import ELFFile
class TestARMSupport(unittest.TestCase):
def test_hello(self):
with open(os.path.join('test', 'testfiles_for_unittests',
'simple_gcc.elf.arm'), 'rb') as f:
elf = ELFFile(f)
self.assertEqual(elf.get_machine_arch(), 'ARM')
# Check some other properties of this ELF file derived from readelf
self.assertEqual(elf['e_entry'], 0x8018)
self.assertEqual(elf.num_sections(), 14)
self.assertEqual(elf.num_segments(), 2)
def test_build_attributes(self):
with open(os.path.join('test', 'testfiles_for_unittests',
'simple_gcc.elf.arm'), 'rb') as f:
elf = ELFFile(f)
sec = elf.get_section_by_name('.ARM.attributes')
self.assertEqual(sec['sh_type'], 'SHT_ARM_ATTRIBUTES')
self.assertEqual(sec.num_subsections, 1)
subsec = sec.subsections[0]
self.assertEqual(subsec.header['vendor_name'], 'aeabi')
self.assertEqual(subsec.num_subsubsections, 1)
subsubsec = subsec.subsubsections[0]
self.assertEqual(subsubsec.header.tag, 'TAG_FILE')
for i in subsubsec.iter_attributes('TAG_CPU_NAME'):
self.assertEqual(i.value, 'ARM7TDMI-S')
for i in subsubsec.iter_attributes('TAG_CPU_ARCH'):
self.assertEqual(i.value, 2)
def test_DWARF_indirect_forms(self):
# This file uses a lot of DW_FORM_indirect, and is also an ARM ELF
# with non-trivial DWARF info.
# So this is a simple sanity check that we can successfully parse it
# and extract the expected amount of CUs.
with open(os.path.join('test', 'testfiles_for_unittests',
'arm_with_form_indirect.elf'), 'rb') as f:
elffile = ELFFile(f)
self.assertTrue(elffile.has_dwarf_info())
dwarfinfo = elffile.get_dwarf_info()
all_CUs = list(dwarfinfo.iter_CUs())
self.assertEqual(len(all_CUs), 9)
if __name__ == '__main__':
unittest.main()
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