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#!/usr/bin/python
import lldb
import optparse
import shlex
import string
import sys
def create_dump_module_line_tables_options():
usage = "usage: dump_module_line_tables [options] MODULE1 [MODULE2 ...]"
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.'''
parser = optparse.OptionParser(
description=description,
prog='start_gdb_log',
usage=usage)
parser.add_option(
'-v',
'--verbose',
action='store_true',
dest='verbose',
help='Display verbose output.',
default=False)
return parser
def dump_module_line_tables(debugger, command, result, dict):
'''Dumps all line tables from all compile units for any modules specified as arguments.'''
command_args = shlex.split(command)
parser = create_dump_module_line_tables_options()
try:
(options, args) = parser.parse_args(command_args)
except:
return
if command_args:
target = debugger.GetSelectedTarget()
lldb.target = target
for module_name in command_args:
result.PutCString('Searching for module "%s"' % (module_name,))
module_fspec = lldb.SBFileSpec(module_name, False)
module = target.FindModule(module_fspec)
if module:
for cu_idx in range(module.GetNumCompileUnits()):
cu = module.GetCompileUnitAtIndex(cu_idx)
result.PutCString("\n%s:" % (cu.file))
for line_idx in range(cu.GetNumLineEntries()):
line_entry = cu.GetLineEntryAtIndex(line_idx)
start_file_addr = line_entry.addr.file_addr
end_file_addr = line_entry.end_addr.file_addr
# If the two addresses are equal, this line table entry
# is a termination entry
if options.verbose:
if start_file_addr != end_file_addr:
result.PutCString(
'[%#x - %#x): %s' %
(start_file_addr, end_file_addr, line_entry))
else:
if start_file_addr == end_file_addr:
result.PutCString('%#x: END' %
(start_file_addr))
else:
result.PutCString(
'%#x: %s' %
(start_file_addr, line_entry))
if start_file_addr == end_file_addr:
result.Printf("\n")
else:
result.PutCString("no module for '%s'" % module)
else:
result.PutCString("error: invalid target")
parser = create_dump_module_line_tables_options()
dump_module_line_tables.__doc__ = parser.format_help()
lldb.debugger.HandleCommand(
'command script add -f %s.dump_module_line_tables dump_module_line_tables' %
__name__)
print 'Installed "dump_module_line_tables" command'
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