| """ |
| Test that elftools does not fail to load debug symbol ELF files |
| """ |
| import unittest |
| import os |
| |
| from elftools.elf.elffile import ELFFile, DynamicSection |
| from elftools.dwarf.callframe import ZERO |
| |
| class TestDBGFile(unittest.TestCase): |
| def test_dynamic_segment(self): |
| """ Test that the degenerate case for the dynamic segment does not crash |
| """ |
| with open(os.path.join('test', 'testfiles_for_unittests', |
| 'debug_info.elf'), 'rb') as f: |
| elf = ELFFile(f) |
| |
| seen_dynamic_segment = False |
| for segment in elf.iter_segments(): |
| if segment.header.p_type == 'PT_DYNAMIC': |
| self.assertEqual(segment.num_tags(), 0, "The dynamic segment in this file should be empty") |
| seen_dynamic_segment = True |
| break |
| |
| self.assertTrue(seen_dynamic_segment, "There should be a dynamic segment in this file") |
| |
| def test_dynamic_section(self): |
| """ Test that the degenerate case for the dynamic section does not crash |
| """ |
| with open(os.path.join('test', 'testfiles_for_unittests', |
| 'debug_info.elf'), 'rb') as f: |
| elf = ELFFile(f) |
| section = DynamicSection(elf.get_section_by_name('.dynamic').header, '.dynamic', elf) |
| |
| self.assertEqual(section.num_tags(), 0, "The dynamic section in this file should be empty") |
| |
| def test_eh_frame(self): |
| """ Test that parsing .eh_frame with SHT_NOBITS does not crash |
| """ |
| with open(os.path.join('test', 'testfiles_for_unittests', |
| 'debug_info.elf'), 'rb') as f: |
| elf = ELFFile(f) |
| dwarf = elf.get_dwarf_info() |
| eh_frame = list(dwarf.EH_CFI_entries()) |
| self.assertEqual(len(eh_frame), 1, "There should only be the ZERO entry in eh_frame") |
| self.assertIs(type(eh_frame[0]), ZERO, "The only eh_frame entry should be the terminator") |
| |
| if __name__ == '__main__': |
| unittest.main() |
