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#!/usr/bin/python3
# Test that glibc's sys/socket.h SO_* constants match the kernel's.
# Copyright (C) 2018-2020 Free Software Foundation, Inc.
# This file is part of the GNU C Library.
#
# The GNU C Library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# The GNU C Library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with the GNU C Library; if not, see
# <https://www.gnu.org/licenses/>.
import argparse
import sys
import glibcextract
def main():
"""The main entry point."""
parser = argparse.ArgumentParser(
description="Test that glibc's sys/socket.h constants "
"match the kernel's.")
parser.add_argument('--cc', metavar='CC',
help='C compiler (including options) to use')
args = parser.parse_args()
def check(define):
return glibcextract.compare_macro_consts(
source_1=define + '#include <sys/socket.h>\n',
# Some constants in <asm/socket.h> may depend on the size
# of pid_t or time_t.
source_2='#include <sys/types.h>\n'
'#include <asm/socket.h>\n',
cc=args.cc,
# We cannot compare all macros because some macros cannot
# be expanded as constants, and glibcextract currently is
# not able to isolate errors.
macro_re='SOL?_.*',
# <sys/socket.h> and <asm/socket.h> are not a good match.
# Most socket-related constants are not defined in any
# UAPI header. Check only the intersection of the macros
# in both headers. Regular tests ensure that expected
# macros for _GNU_SOURCE are present, and the conformance
# tests cover most of the other modes.
allow_extra_1=True,
allow_extra_2=True)
# _GNU_SOURCE is defined by include/libc-symbols.h, which is
# included by the --cc command. Defining _ISOMAC does not prevent
# that.
status = max(
check(''),
check('#undef _GNU_SOURCE\n'),
check('#undef _GNU_SOURCE\n'
'#define _POSIX_SOURCE 1\n'))
sys.exit(status)
if __name__ == '__main__':
main()
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