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acb55dcb89
This patch updates the Linux kernel version in tst-mman-consts.py to 4.20 (meaning that's the version for which glibc is expected to have the same constants as the kernel, up to the exceptions listed in the test). (Once we have more such tests sharing common infrastructure, I expect the kernel version will be something set in the infrastructure shared by all such tests, rather than something needing updating separately for each test for each new kernel version.) Tested with build-many-glibcs.py. * sysdeps/unix/sysv/linux/tst-mman-consts.py (main): Expect constants to match with Linux 4.20.
66 lines
2.6 KiB
Python
66 lines
2.6 KiB
Python
#!/usr/bin/python3
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# Test that glibc's sys/mman.h constants match the kernel's.
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# Copyright (C) 2018-2019 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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#
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with the GNU C Library; if not, see
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# <http://www.gnu.org/licenses/>.
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import argparse
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import sys
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import glibcextract
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def linux_kernel_version(cc):
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"""Return the (major, minor) version of the Linux kernel headers."""
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sym_data = ['#include <linux/version.h>', 'START',
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('LINUX_VERSION_CODE', 'LINUX_VERSION_CODE')]
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val = glibcextract.compute_c_consts(sym_data, cc)['LINUX_VERSION_CODE']
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val = int(val)
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return ((val & 0xff0000) >> 16, (val & 0xff00) >> 8)
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def main():
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"""The main entry point."""
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parser = argparse.ArgumentParser(
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description="Test that glibc's sys/mman.h constants "
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"match the kernel's.")
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parser.add_argument('--cc', metavar='CC',
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help='C compiler (including options) to use')
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args = parser.parse_args()
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linux_version_headers = linux_kernel_version(args.cc)
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linux_version_glibc = (4, 20)
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sys.exit(glibcextract.compare_macro_consts(
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'#define _GNU_SOURCE 1\n'
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'#include <sys/mman.h>\n',
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'#define _GNU_SOURCE 1\n'
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'#include <linux/mman.h>\n',
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args.cc,
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'MAP_.*',
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# A series of MAP_HUGE_<size> macros are defined by the kernel
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# but not by glibc. MAP_UNINITIALIZED is kernel-only.
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# MAP_FAILED is not a MAP_* flag and is glibc-only, as is the
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# MAP_ANON alias for MAP_ANONYMOUS. MAP_RENAME, MAP_AUTOGROW,
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# MAP_LOCAL and MAP_AUTORSRV are in the kernel header for
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# MIPS, marked as "not used by linux"; SPARC has MAP_INHERIT
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# in the kernel header, but does not use it.
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'MAP_HUGE_[0-9].*|MAP_UNINITIALIZED|MAP_FAILED|MAP_ANON'
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'|MAP_RENAME|MAP_AUTOGROW|MAP_LOCAL|MAP_AUTORSRV|MAP_INHERIT',
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linux_version_glibc > linux_version_headers,
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linux_version_headers > linux_version_glibc))
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if __name__ == '__main__':
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main()
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