1 #!/usr/bin/python 2 3 import lldb 4 import optparse 5 import shlex 6 import string 7 import sys 8 9 def create_dump_module_line_tables_options (): 10 usage = "usage: dump_module_line_tables [options] MODULE1 [MODULE2 ...]" 11 description='''Dumps all line tables from all compile units for any modules specified as arguments. Specifying the --verbose flag will output address ranges for each line entry.''' 12 parser = optparse.OptionParser(description=description, prog='start_gdb_log',usage=usage) 13 parser.add_option('-v', '--verbose', action='store_true', dest='verbose', help='Display verbose output.', default=False) 14 return parser 15 16 def dump_module_line_tables(debugger, command, result, dict): 17 '''Dumps all line tables from all compile units for any modules specified as arguments.''' 18 command_args = shlex.split(command) 19 20 parser = create_dump_module_line_tables_options () 21 try: 22 (options, args) = parser.parse_args(command_args) 23 except: 24 return 25 if command_args: 26 target = debugger.GetSelectedTarget() 27 lldb.target = target 28 for module_name in command_args: 29 result.PutCString('Searching for module "%s"' % (module_name,)) 30 module_fspec = lldb.SBFileSpec (module_name, False) 31 module = target.FindModule (module_fspec); 32 if module: 33 for cu_idx in range (module.GetNumCompileUnits()): 34 cu = module.GetCompileUnitAtIndex(cu_idx) 35 result.PutCString("\n%s:" % (cu.file)) 36 for line_idx in range(cu.GetNumLineEntries()): 37 line_entry = cu.GetLineEntryAtIndex(line_idx) 38 start_file_addr = line_entry.addr.file_addr 39 end_file_addr = line_entry.end_addr.file_addr 40 # If the two addresses are equal, this line table entry is a termination entry 41 if options.verbose: 42 if start_file_addr != end_file_addr: 43 result.PutCString('[%#x - %#x): %s' % (start_file_addr, end_file_addr, line_entry)) 44 else: 45 if start_file_addr == end_file_addr: 46 result.PutCString('%#x: END' % (start_file_addr)) 47 else: 48 result.PutCString('%#x: %s' % (start_file_addr, line_entry)) 49 if start_file_addr == end_file_addr: 50 result.Printf("\n") 51 else: 52 result.PutCString ("no module for '%s'" % module) 53 else: 54 result.PutCString ("error: invalid target") 55 56 parser = create_dump_module_line_tables_options () 57 dump_module_line_tables.__doc__ = parser.format_help() 58 lldb.debugger.HandleCommand('command script add -f %s.dump_module_line_tables dump_module_line_tables' % __name__) 59 print 'Installed "dump_module_line_tables" command'