mirror of https://github.com/python/cpython
79 lines
2.1 KiB
Python
79 lines
2.1 KiB
Python
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#!/usr/bin/env python
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# Script checking that all symbols exported by libpython start with Py or _Py
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import subprocess
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import sys
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import sysconfig
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def get_exported_symbols():
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LIBRARY = sysconfig.get_config_var('LIBRARY')
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if not LIBRARY:
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raise Exception("failed to get LIBRARY")
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args = ('nm', '-p', LIBRARY)
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print("+ %s" % ' '.join(args))
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proc = subprocess.run(args, stdout=subprocess.PIPE, universal_newlines=True)
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if proc.returncode:
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sys.stdout.write(proc.stdout)
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sys.exit(proc.returncode)
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stdout = proc.stdout.rstrip()
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if not stdout:
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raise Exception("command output is empty")
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return stdout
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def get_smelly_symbols(stdout):
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symbols = []
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ignored_symtypes = set()
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for line in stdout.splitlines():
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# Split line '0000000000001b80 D PyTextIOWrapper_Type'
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if not line:
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continue
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parts = line.split(maxsplit=2)
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if len(parts) < 3:
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continue
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symtype = parts[1].strip()
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# Ignore private symbols.
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#
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# If lowercase, the symbol is usually local; if uppercase, the symbol
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# is global (external). There are however a few lowercase symbols that
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# are shown for special global symbols ("u", "v" and "w").
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if symtype.islower() and symtype not in "uvw":
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ignored_symtypes.add(symtype)
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continue
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symbol = parts[-1]
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if symbol.startswith(('Py', '_Py')):
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continue
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symbol = '%s (type: %s)' % (symbol, symtype)
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symbols.append(symbol)
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if ignored_symtypes:
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print("Ignored symbol types: %s" % ', '.join(sorted(ignored_symtypes)))
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print()
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return symbols
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def main():
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nm_output = get_exported_symbols()
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symbols = get_smelly_symbols(nm_output)
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if not symbols:
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print("OK: no smelly symbol found")
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sys.exit(0)
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symbols.sort()
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for symbol in symbols:
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print("Smelly symbol: %s" % symbol)
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print()
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print("ERROR: Found %s smelly symbols!" % len(symbols))
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sys.exit(1)
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if __name__ == "__main__":
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main()
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