| import sys, unittest |
| from cStringIO import StringIO |
| |
| sys.path.extend(('..', '.')) |
| from elftools.dwarf.location_expr import LocationExpressionDumper |
| from elftools.dwarf.structs import DWARFStructs |
| |
| |
| class TestLocationExpressionDumper(unittest.TestCase): |
| structs32 = DWARFStructs( |
| little_endian=True, |
| dwarf_format=32, |
| address_size=4) |
| |
| def setUp(self): |
| self.visitor = LocationExpressionDumper(self.structs32) |
| |
| def test_basic_single(self): |
| self.visitor.process_expr([0x1b]) |
| self.assertEqual(self.visitor.get_str(), |
| 'DW_OP_div') |
| |
| self.setUp() |
| self.visitor.process_expr([0x74, 0x82, 0x01]) |
| self.assertEqual(self.visitor.get_str(), |
| 'DW_OP_breg4: 130') |
| |
| self.setUp() |
| self.visitor.process_expr([0x91, 0x82, 0x01]) |
| self.assertEqual(self.visitor.get_str(), |
| 'DW_OP_fbreg: 130') |
| |
| self.setUp() |
| self.visitor.process_expr([0x9d, 0x8f, 0x0A, 0x90, 0x01]) |
| self.assertEqual(self.visitor.get_str(), |
| 'DW_OP_bit_piece: 1295 144') |
| |
| def test_basic_sequence(self): |
| self.visitor.process_expr([0x03, 0x01, 0x02, 0, 0, 0x06, 0x06]) |
| self.assertEqual(self.visitor.get_str(), |
| 'DW_OP_addr: 201; DW_OP_deref; DW_OP_deref') |
| |
| self.setUp() |
| self.visitor.process_expr([0x15, 0xFF, 0x0b, 0xf1, 0xff]) |
| self.assertEqual(self.visitor.get_str(), |
| 'DW_OP_pick: 255; DW_OP_const2s: -15') |
| |
| self.setUp() |
| self.visitor.process_expr([0x1d, 0x1e, 0x1d, 0x1e, 0x1d, 0x1e]) |
| self.assertEqual(self.visitor.get_str(), |
| 'DW_OP_mod; DW_OP_mul; DW_OP_mod; DW_OP_mul; DW_OP_mod; DW_OP_mul') |
| |
| def test_stream_input(self): |
| self.visitor.process_expr(StringIO('\x1b')) |
| self.assertEqual(self.visitor.get_str(), |
| 'DW_OP_div') |
| |
| |
| if __name__ == '__main__': |
| unittest.main() |
| |
| |
