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60 lines
2.4 KiB
Python
60 lines
2.4 KiB
Python
#!/usr/bin/env python3
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"""Generate matching symbols for Xcode's embedded, codeless OpenSSL framework."""
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import argparse
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from pathlib import Path
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import re
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import subprocess
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import sys
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def uuids(path):
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output = subprocess.check_output(["xcrun", "dwarfdump", "--uuid", str(path)], text=True)
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result = dict((arch, uuid.upper()) for uuid, arch in
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re.findall(r"UUID: ([0-9A-Fa-f-]{36}) \(([^)]+)\)", output))
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if not result:
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raise ValueError(f"No Mach-O UUIDs found: {path}")
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return result
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def verify_symbols(binary, dsym):
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dwarf = dsym / "Contents/Resources/DWARF" / binary.name
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if not dwarf.is_file():
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raise ValueError(f"Missing dSYM DWARF file: {dwarf}")
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if uuids(binary) != uuids(dwarf):
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raise ValueError(f"dSYM UUIDs do not match {binary}: {dwarf}")
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def generate(binary, output):
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# This is only for Xcode's resource placeholder. Real OpenSSL code remains
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# statically linked into the app and must not receive an empty dSYM here.
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commands = subprocess.check_output(["xcrun", "otool", "-l", str(binary)], text=True)
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text_sizes = re.findall(
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r"sectname __text\s+segname __TEXT\s+addr \S+\s+size (0x[0-9a-fA-F]+)", commands)
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if not text_sizes or any(int(size, 16) for size in text_sizes):
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raise ValueError(f"Expected a codeless OpenSSL resource stub: {binary}")
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output.parent.mkdir(parents=True, exist_ok=True)
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# No function-level debug info exists in this empty stub. dsymutil still
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# emits a valid UUID-matched DWARF companion; quiet suppresses that expected
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# warning only after verifying that there is no executable code to lose.
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subprocess.run(["xcrun", "dsymutil", "--quiet", str(binary), "-o", str(output)], check=True)
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verify_symbols(binary, output)
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subprocess.run(["xcrun", "dwarfdump", "--verify", str(output)], check=True)
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print(f"Generated UUID-matched OpenSSL resource symbols: {output}")
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def main():
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument("--binary", required=True, type=Path)
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parser.add_argument("--output", required=True, type=Path)
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args = parser.parse_args()
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generate(args.binary, args.output)
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if __name__ == "__main__":
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try:
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main()
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except (OSError, ValueError, subprocess.CalledProcessError) as error:
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print(f"OpenSSL symbols: {error}", file=sys.stderr)
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sys.exit(1)
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