blob: 28533de0d7770e207919a81f98be91bc4b2ff0ef [file] [log] [blame]
#!/usr/bin/env python
# Copyright 2019 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Extracts an LLD partition from an ELF file."""
import argparse
import subprocess
import sys
def main():
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument(
'--partition',
help='Name of partition if not the main partition',
metavar='PART')
parser.add_argument(
'--objcopy',
required=True,
help='Path to llvm-objcopy binary',
metavar='FILE')
parser.add_argument(
'--unstripped-output',
required=True,
help='Unstripped output file',
metavar='FILE')
parser.add_argument(
'--stripped-output',
required=True,
help='Stripped output file',
metavar='FILE')
parser.add_argument('--dwp', help='Path to dwp binary', metavar='FILE')
parser.add_argument('input', help='Input file')
args = parser.parse_args()
objcopy_args = [args.objcopy]
if args.partition:
objcopy_args += ['--extract-partition', args.partition]
else:
objcopy_args += ['--extract-main-partition']
objcopy_args += [args.input, args.unstripped_output]
subprocess.check_call(objcopy_args)
objcopy_args = [
args.objcopy, '--strip-all', args.unstripped_output, args.stripped_output
]
subprocess.check_call(objcopy_args)
if args.dwp:
dwp_args = [
args.dwp, '-e', args.unstripped_output, '-o',
args.unstripped_output + '.dwp'
]
subprocess.check_call(dwp_args)
if __name__ == '__main__':
sys.exit(main())