test/test_elffile.py

   1 #-------------------------------------------------------------------------------
   2 # elftools tests
   3 #
   4 # Eli Bendersky (eliben@gmail.com)
   5 # This code is in the public domain
   6 #-------------------------------------------------------------------------------
   7 import unittest
   8 import os
   9
  10 from elftools.elf.elffile import ELFFile
  11
  12
  13 class TestMap(unittest.TestCase):
  14     def test_address_offsets(self):
  15         class MockELF(ELFFile):
  16             __init__ = object.__init__
  17             def iter_segments(self, type=None):
  18                 if type == 'PT_LOAD':
  19                     return iter((
  20                         dict(p_type='PT_LOAD', p_vaddr=0x10200, p_filesz=0x200, p_offset=0x100),
  21                         dict(p_type='PT_LOAD', p_vaddr=0x10100, p_filesz=0x100, p_offset=0x400),
  22                     ))
  23                 else:
  24                     return iter((
  25                         dict(p_type='PT_PHDR', p_vaddr=0x10100, p_filesz=0x100, p_offset=0x400),
  26                         dict(p_type='PT_LOAD', p_vaddr=0x10200, p_filesz=0x200, p_offset=0x100),
  27                         dict(p_type='PT_LOAD', p_vaddr=0x10100, p_filesz=0x100, p_offset=0x400),
  28                     ))
  29
  30         elf = MockELF()
  31
  32         self.assertEqual(tuple(elf.address_offsets(0x10100)), (0x400,))
  33         self.assertEqual(tuple(elf.address_offsets(0x10120)), (0x420,))
  34         self.assertEqual(tuple(elf.address_offsets(0x101FF)), (0x4FF,))
  35         self.assertEqual(tuple(elf.address_offsets(0x10200)), (0x100,))
  36         self.assertEqual(tuple(elf.address_offsets(0x100FF)), ())
  37         self.assertEqual(tuple(elf.address_offsets(0x10400)), ())
  38
  39         self.assertEqual(
  40             tuple(elf.address_offsets(0x10100, 0x100)), (0x400,))
  41         self.assertEqual(tuple(elf.address_offsets(0x10100, 4)), (0x400,))
  42         self.assertEqual(tuple(elf.address_offsets(0x10120, 4)), (0x420,))
  43         self.assertEqual(tuple(elf.address_offsets(0x101FC, 4)), (0x4FC,))
  44         self.assertEqual(tuple(elf.address_offsets(0x10200, 4)), (0x100,))
  45         self.assertEqual(tuple(elf.address_offsets(0x10100, 0x200)), ())
  46         self.assertEqual(tuple(elf.address_offsets(0x10000, 0x800)), ())
  47         self.assertEqual(tuple(elf.address_offsets(0x100FC, 4)), ())
  48         self.assertEqual(tuple(elf.address_offsets(0x100FE, 4)), ())
  49         self.assertEqual(tuple(elf.address_offsets(0x101FE, 4)), ())
  50         self.assertEqual(tuple(elf.address_offsets(0x103FE, 4)), ())
  51         self.assertEqual(tuple(elf.address_offsets(0x10400, 4)), ())
  52
  53 class TestSectionFilter(unittest.TestCase):
  54
  55     def test_section_filter(self):
  56         with open(os.path.join('test', 'testfiles_for_unittests',
  57                                'arm_exidx_test.so'), 'rb') as f:
  58             elf = ELFFile(f)
  59             self.assertEqual(len(list(elf.iter_sections())), 26)
  60             self.assertEqual(len(list(elf.iter_sections('SHT_REL'))), 2)
  61             self.assertEqual(len(list(elf.iter_sections('SHT_ARM_EXIDX'))), 1)
  62             self.assertTrue(elf.has_ehabi_info())
  63
  64 if __name__ == '__main__':
  65     unittest.main()