def _dump_debug_frames(self): """ Dump the raw frame information from .debug_frame """ if not self._dwarfinfo.has_CFI(): return self._emitline('Contents of the .debug_frame section:') for entry in self._dwarfinfo.CFI_entries(): if isinstance(entry, CIE): self._emitline('\n%08x %08x %08x CIE' % ( entry.offset, entry['length'], entry['CIE_id'])) self._emitline(' Version: %d' % entry['version']) self._emitline(' Augmentation: "%s"' % bytes2str(entry['augmentation'])) self._emitline(' Code alignment factor: %u' % entry['code_alignment_factor']) self._emitline(' Data alignment factor: %d' % entry['data_alignment_factor']) self._emitline(' Return address column: %d' % entry['return_address_register']) self._emitline() else: # FDE self._emitline('\n%08x %08x %08x FDE cie=%08x pc=%08x..%08x' % ( entry.offset, entry['length'], entry['CIE_pointer'], entry.cie.offset, entry['initial_location'], entry['initial_location'] + entry['address_range'])) self._emit(describe_CFI_instructions(entry)) self._emitline()
def _dump_debug_frames(self): """ Dump the raw frame information from .debug_frame """ if not self._dwarfinfo.has_CFI(): return self._emitline('Contents of the .debug_frame section:') for entry in self._dwarfinfo.CFI_entries(): if isinstance(entry, CIE): self._emitline( '\n%08x %08x %08x CIE' % (entry.offset, entry['length'], entry['CIE_id'])) self._emitline(' Version: %d' % entry['version']) self._emitline(' Augmentation: "%s"' % bytes2str(entry['augmentation'])) self._emitline(' Code alignment factor: %u' % entry['code_alignment_factor']) self._emitline(' Data alignment factor: %d' % entry['data_alignment_factor']) self._emitline(' Return address column: %d' % entry['return_address_register']) self._emitline() else: # FDE self._emitline( '\n%08x %08x %08x FDE cie=%08x pc=%08x..%08x' % (entry.offset, entry['length'], entry['CIE_pointer'], entry.cie.offset, entry['initial_location'], entry['initial_location'] + entry['address_range'])) self._emit(describe_CFI_instructions(entry)) self._emitline()
def test_describe_CFI_instructions(self): # The data here represents a single CIE data = (b'' + b'\x16\x00\x00\x00' + # length b'\xff\xff\xff\xff' + # CIE_id b'\x03\x00\x04\x7c' + # version, augmentation, caf, daf b'\x08' + # return address b'\x0c\x07\x02' + b'\x10\x02\x07\x03\x01\x02\x00\x00\x06\x06') s = BytesIO(data) structs = DWARFStructs(little_endian=True, dwarf_format=32, address_size=4) cfi = CallFrameInfo(s, len(data), structs) entries = cfi.get_entries() set_global_machine_arch('x86') self.assertEqual(describe_CFI_instructions(entries[0]), ( ' DW_CFA_def_cfa: r7 (edi) ofs 2\n' + ' DW_CFA_expression: r2 (edx) (DW_OP_addr: 201; DW_OP_deref; DW_OP_deref)\n'))
def test_describe_CFI_instructions(self): # The data here represents a single CIE data = ( b'' + b'\x16\x00\x00\x00' + # length b'\xff\xff\xff\xff' + # CIE_id b'\x03\x00\x04\x7c' + # version, augmentation, caf, daf b'\x08' + # return address b'\x0c\x07\x02' + b'\x10\x02\x07\x03\x01\x02\x00\x00\x06\x06') s = BytesIO(data) structs = DWARFStructs(little_endian=True, dwarf_format=32, address_size=4) cfi = CallFrameInfo(s, len(data), structs) entries = cfi.get_entries() set_global_machine_arch('x86') self.assertEqual(describe_CFI_instructions(entries[0]), ( ' DW_CFA_def_cfa: r7 (edi) ofs 2\n' + ' DW_CFA_expression: r2 (edx) (DW_OP_addr: 201; DW_OP_deref; DW_OP_deref)\n' ))