9eede35fc1build: refactor Linux binary stripping to align with upstream (#47932) Co-authored-by: trop[bot] <37223003+trop[bot]@users.noreply.github.com> Co-authored-by: David Sanders <dsanders11@ucsbalum.com>
63 lines
2 KiB
Python
63 lines
2 KiB
Python
#!/usr/bin/env python3
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#
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# Copyright 2021 The Chromium Authors
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# This has been adapted from https://source.chromium.org/chromium/chromium/src/+/main:build/linux/strip_binary.py;drc=c220a41e0422d45f1657c28146d32e99cc53640b
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# The notable difference is it has an option to compress the debug sections
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import argparse
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import subprocess
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import sys
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def main() -> int:
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parser = argparse.ArgumentParser(description="Strip binary using LLVM tools.")
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parser.add_argument("--llvm-strip-binary-path",
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help="Path to llvm-strip executable.")
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parser.add_argument("--llvm-objcopy-binary-path",
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required=True,
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help="Path to llvm-objcopy executable.")
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parser.add_argument("--binary-input", help="Input ELF binary.")
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parser.add_argument("--symbol-output",
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help="File to write extracted debug info (.debug).")
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parser.add_argument("--compress-debug-sections",
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action="store_true",
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help="Compress extracted debug info.")
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parser.add_argument("--stripped-binary-output",
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help="File to write stripped binary.")
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args = parser.parse_args()
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# Replicate the behavior of:
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# eu-strip <binary_input> -o <stripped_binary_output> -f <symbol_output>
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objcopy_args = [
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"--only-keep-debug",
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args.binary_input,
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args.symbol_output,
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]
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if args.compress_debug_sections:
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objcopy_args.insert(0, "--compress-debug-sections")
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subprocess.check_output([args.llvm_objcopy_binary_path] + objcopy_args)
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subprocess.check_output([
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args.llvm_strip_binary_path,
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"--strip-debug",
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"--strip-unneeded",
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"-o",
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args.stripped_binary_output,
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args.binary_input,
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])
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subprocess.check_output([
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args.llvm_objcopy_binary_path,
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f"--add-gnu-debuglink={args.symbol_output}",
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args.stripped_binary_output,
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])
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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