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b9c1b51e45
*** to conform to clang-format’s LLVM style. This kind of mass change has
*** two obvious implications:
Firstly, merging this particular commit into a downstream fork may be a huge
effort. Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit. The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):
find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;
The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.
Secondly, “blame” style tools will generally point to this commit instead of
a meaningful prior commit. There are alternatives available that will attempt
to look through this change and find the appropriate prior commit. YMMV.
llvm-svn: 280751
277 lines
9.2 KiB
Python
Executable File
277 lines
9.2 KiB
Python
Executable File
#!/usr/bin/python
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#----------------------------------------------------------------------
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# Be sure to add the python path that points to the LLDB shared library.
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#
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# # To use this in the embedded python interpreter using "lldb" just
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# import it with the full path using the "command script import"
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# command
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# (lldb) command script import /path/to/cmdtemplate.py
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#----------------------------------------------------------------------
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import commands
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import platform
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import os
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import re
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import sys
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try:
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# Just try for LLDB in case PYTHONPATH is already correctly setup
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import lldb
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except ImportError:
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lldb_python_dirs = list()
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# lldb is not in the PYTHONPATH, try some defaults for the current platform
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platform_system = platform.system()
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if platform_system == 'Darwin':
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# On Darwin, try the currently selected Xcode directory
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xcode_dir = commands.getoutput("xcode-select --print-path")
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if xcode_dir:
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lldb_python_dirs.append(
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os.path.realpath(
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xcode_dir +
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'/../SharedFrameworks/LLDB.framework/Resources/Python'))
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lldb_python_dirs.append(
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xcode_dir + '/Library/PrivateFrameworks/LLDB.framework/Resources/Python')
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lldb_python_dirs.append(
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'/System/Library/PrivateFrameworks/LLDB.framework/Resources/Python')
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success = False
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for lldb_python_dir in lldb_python_dirs:
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if os.path.exists(lldb_python_dir):
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if not (sys.path.__contains__(lldb_python_dir)):
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sys.path.append(lldb_python_dir)
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try:
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import lldb
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except ImportError:
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pass
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else:
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print 'imported lldb from: "%s"' % (lldb_python_dir)
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success = True
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break
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if not success:
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print "error: couldn't locate the 'lldb' module, please set PYTHONPATH correctly"
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sys.exit(1)
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import commands
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import optparse
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import shlex
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import string
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import struct
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import time
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def append_data_callback(option, opt_str, value, parser):
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if opt_str == "--uint8":
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int8 = int(value, 0)
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parser.values.data += struct.pack('1B', int8)
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if opt_str == "--uint16":
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int16 = int(value, 0)
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parser.values.data += struct.pack('1H', int16)
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if opt_str == "--uint32":
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int32 = int(value, 0)
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parser.values.data += struct.pack('1I', int32)
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if opt_str == "--uint64":
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int64 = int(value, 0)
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parser.values.data += struct.pack('1Q', int64)
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if opt_str == "--int8":
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int8 = int(value, 0)
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parser.values.data += struct.pack('1b', int8)
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if opt_str == "--int16":
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int16 = int(value, 0)
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parser.values.data += struct.pack('1h', int16)
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if opt_str == "--int32":
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int32 = int(value, 0)
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parser.values.data += struct.pack('1i', int32)
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if opt_str == "--int64":
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int64 = int(value, 0)
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parser.values.data += struct.pack('1q', int64)
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def create_memfind_options():
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usage = "usage: %prog [options] STARTADDR [ENDADDR]"
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description = '''This command can find data in a specified address range.
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Options are used to specify the data that is to be looked for and the options
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can be specified multiple times to look for longer streams of data.
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'''
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parser = optparse.OptionParser(
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description=description,
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prog='memfind',
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usage=usage)
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parser.add_option(
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'-s',
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'--size',
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type='int',
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metavar='BYTESIZE',
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dest='size',
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help='Specify the byte size to search.',
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default=0)
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parser.add_option(
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'--int8',
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action="callback",
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callback=append_data_callback,
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type='string',
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metavar='INT',
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dest='data',
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help='Specify a 8 bit signed integer value to search for in memory.',
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default='')
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parser.add_option(
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'--int16',
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action="callback",
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callback=append_data_callback,
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type='string',
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metavar='INT',
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dest='data',
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help='Specify a 16 bit signed integer value to search for in memory.',
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default='')
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parser.add_option(
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'--int32',
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action="callback",
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callback=append_data_callback,
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type='string',
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metavar='INT',
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dest='data',
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help='Specify a 32 bit signed integer value to search for in memory.',
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default='')
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parser.add_option(
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'--int64',
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action="callback",
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callback=append_data_callback,
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type='string',
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metavar='INT',
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dest='data',
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help='Specify a 64 bit signed integer value to search for in memory.',
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default='')
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parser.add_option(
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'--uint8',
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action="callback",
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callback=append_data_callback,
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type='string',
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metavar='INT',
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dest='data',
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help='Specify a 8 bit unsigned integer value to search for in memory.',
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default='')
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parser.add_option(
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'--uint16',
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action="callback",
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callback=append_data_callback,
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type='string',
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metavar='INT',
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dest='data',
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help='Specify a 16 bit unsigned integer value to search for in memory.',
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default='')
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parser.add_option(
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'--uint32',
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action="callback",
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callback=append_data_callback,
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type='string',
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metavar='INT',
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dest='data',
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help='Specify a 32 bit unsigned integer value to search for in memory.',
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default='')
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parser.add_option(
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'--uint64',
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action="callback",
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callback=append_data_callback,
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type='string',
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metavar='INT',
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dest='data',
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help='Specify a 64 bit unsigned integer value to search for in memory.',
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default='')
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return parser
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def memfind_command(debugger, command, result, dict):
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# Use the Shell Lexer to properly parse up command options just like a
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# shell would
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command_args = shlex.split(command)
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parser = create_memfind_options()
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(options, args) = parser.parse_args(command_args)
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# try:
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# (options, args) = parser.parse_args(command_args)
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# except:
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# # if you don't handle exceptions, passing an incorrect argument to the OptionParser will cause LLDB to exit
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# # (courtesy of OptParse dealing with argument errors by throwing SystemExit)
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# result.SetStatus (lldb.eReturnStatusFailed)
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# print >>result, "error: option parsing failed" # returning a string is the same as returning an error whose description is the string
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# return
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memfind(debugger.GetSelectedTarget(), options, args, result)
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def print_error(str, show_usage, result):
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print >>result, str
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if show_usage:
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print >>result, create_memfind_options().format_help()
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def memfind(target, options, args, result):
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num_args = len(args)
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start_addr = 0
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if num_args == 1:
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if options.size > 0:
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print_error(
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"error: --size must be specified if there is no ENDADDR argument",
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True,
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result)
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return
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start_addr = int(args[0], 0)
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elif num_args == 2:
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if options.size != 0:
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print_error(
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"error: --size can't be specified with an ENDADDR argument",
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True,
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result)
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return
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start_addr = int(args[0], 0)
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end_addr = int(args[1], 0)
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if start_addr >= end_addr:
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print_error(
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"error: inavlid memory range [%#x - %#x)" %
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(start_addr, end_addr), True, result)
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return
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options.size = end_addr - start_addr
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else:
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print_error("error: memfind takes 1 or 2 arguments", True, result)
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return
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if not options.data:
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print >>result, 'error: no data specified to search for'
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return
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if not target:
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print >>result, 'error: invalid target'
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return
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process = target.process
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if not process:
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print >>result, 'error: invalid process'
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return
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error = lldb.SBError()
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bytes = process.ReadMemory(start_addr, options.size, error)
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if error.Success():
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num_matches = 0
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print >>result, "Searching memory range [%#x - %#x) for" % (
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start_addr, end_addr),
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for byte in options.data:
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print >>result, '%2.2x' % ord(byte),
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print >>result
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match_index = string.find(bytes, options.data)
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while match_index != -1:
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num_matches = num_matches + 1
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print >>result, '%#x: %#x + %u' % (start_addr +
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match_index, start_addr, match_index)
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match_index = string.find(bytes, options.data, match_index + 1)
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if num_matches == 0:
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print >>result, "error: no matches found"
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else:
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print >>result, 'error: %s' % (error.GetCString())
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if __name__ == '__main__':
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print 'error: this script is designed to be used within the embedded script interpreter in LLDB'
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elif getattr(lldb, 'debugger', None):
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memfind_command.__doc__ = create_memfind_options().format_help()
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lldb.debugger.HandleCommand(
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'command script add -f memory.memfind_command memfind')
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print '"memfind" command installed, use the "--help" option for detailed help'
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