89 lines
3.6 KiB
Python
89 lines
3.6 KiB
Python
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#!/usr/bin/python3
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# Consistency checks for glibc system call lists.
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# Copyright (C) 2020-2022 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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import glibcsyscalls
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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="System call list consistency checks")
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parser.add_argument('--cc', metavar='CC', required=True,
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help='C compiler (including options) to use')
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parser.add_argument('syscall_numbers_list', metavar='PATH',
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help='Path to the list of system call numbers')
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parser.add_argument('syscall_names_list', metavar='PATH',
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help='Path to the list of system call names')
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args = parser.parse_args()
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glibc_constants = glibcsyscalls.load_arch_syscall_header(
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args.syscall_numbers_list)
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with open(args.syscall_names_list) as inp:
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glibc_names = glibcsyscalls.SyscallNamesList(inp)
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kernel_constants = glibcsyscalls.kernel_constants(args.cc)
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kernel_version = glibcsyscalls.linux_kernel_version(args.cc)
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errors = 0
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warnings = False
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for name in glibc_constants.keys() & kernel_constants.keys():
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if glibc_constants[name] != kernel_constants[name]:
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print("error: syscall {!r} number mismatch: glibc={!r} kernel={!r}"
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.format(name, glibc_constants[name], kernel_constants[name]))
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errors = 1
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# The architecture-specific list in the glibc tree must be a
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# subset of the global list of system call names.
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for name in glibc_constants.keys() - set(glibc_names.syscalls):
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print("error: architecture syscall {!r} missing from global names list"
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.format(name))
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errors = 1
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for name in glibc_constants.keys() - kernel_constants.keys():
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print("info: glibc syscall {!r} not known to kernel".format(name))
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warnings = True
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# If the glibc-recorded kernel version is not older than the
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# installed kernel headers, the glibc system call set must be a
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# superset of the kernel system call set.
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if glibc_names.kernel_version >= kernel_version:
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for name in kernel_constants.keys() - glibc_constants.keys():
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print("error: kernel syscall {!r} ({}) not known to glibc"
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.format(name, kernel_constants[name]))
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errors = 1
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else:
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for name in kernel_constants.keys() - glibc_constants.keys():
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print("warning: kernel syscall {!r} ({}) not known to glibc"
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.format(name, kernel_constants[name]))
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warnings = True
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if errors > 0 or warnings:
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print("info: glibc tables are based on kernel version {}".format(
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".".join(map(str, glibc_names.kernel_version))))
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print("info: installed kernel headers are version {}".format(
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".".join(map(str, kernel_version))))
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sys.exit(errors)
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if __name__ == '__main__':
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main()
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