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dump-class-layout
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executable file
·88 lines (70 loc) · 3.5 KB
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#!/usr/bin/env python3
# Copyright (C) 2011-2015 Apple Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
# THE POSSIBILITY OF SUCH DAMAGE.
import re
import sys
import getopt
import argparse
import os
import subprocess
up = os.path.dirname
tools_directory = up(up(os.path.abspath(__file__)))
sys.path.insert(0, os.path.join(tools_directory, "lldb"))
from lldb_dump_class_layout import LLDBDebuggerInstance, ClassLayout
framework = "WebCore"
build_directory = ""
target_path = ""
config = "Release"
arch = None
def webkit_build_dir():
scriptpath = os.path.dirname(os.path.realpath(__file__))
return subprocess.check_output([os.path.join(scriptpath, "webkit-build-directory"), "--top-level"]).decode().strip()
def main():
parser = argparse.ArgumentParser(description='Dumps the in-memory layout of the given class or classes, showing padding holes.')
parser.add_argument('framework', metavar='framework',
help='name of the framework containing the class (e.g. "WebCore")')
parser.add_argument('classname', metavar='classname',
help='name of the class or struct to dump')
parser.add_argument('-b', '--build-directory', dest='build_directory', action='store',
help='Path to the directory under which build files are kept (should not include configuration)')
parser.add_argument('-c', '--configuration', dest='config', action='store',
help='Configuration (Debug or Release)')
parser.add_argument('-a', '--architecture', dest='arch', action='store',
help='Architecture (i386, x86_64, armv7, armv7s, arm64). Uses the first architecture listed by \'file\' by default')
parser.add_argument('-t', '--target-path', dest='target_path', action='store',
help='Path to the target')
args = parser.parse_args()
build_dir = webkit_build_dir()
if args.config is None:
args.config = "Release"
if args.build_directory is not None:
build_dir = args.build_directory
if args.target_path is not None:
target_path = args.target_path
else:
target_path = os.path.join(build_dir, args.config, args.framework + ".framework", args.framework);
lldb_instance = LLDBDebuggerInstance(target_path, args.arch)
class_layout = lldb_instance.layout_for_classname(args.classname)
class_layout.dump()
if __name__ == "__main__":
main()