mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-15 01:21:06 +00:00
118 lines
4.6 KiB
Python
118 lines
4.6 KiB
Python
#!/usr/bin/python3
|
|
# Check that a wrapper header exist for each non-sysdeps header.
|
|
# Copyright (C) 2019-2020 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/>.
|
|
|
|
# Non-sysdeps subdirectories are not on the C include path, so
|
|
# installed headers need to have a sysdep wrapper header.
|
|
#
|
|
# usage: scripts/checl-wrapper-headers.py \
|
|
# --root=$(..) --subdir=$(subdir) $(headers) \
|
|
# [--generated $(common-generated)]
|
|
#
|
|
# If invoked with --root=., the script is invoked from the root of the
|
|
# source tree, so paths starting with "include/" are skipped (because
|
|
# those do not require wrappers).
|
|
|
|
import argparse
|
|
import os
|
|
import sys
|
|
|
|
# Some subdirectories are only compiled for essentially one target.
|
|
# In this case, we do not need to check for consistent wrapper
|
|
# headers. Hurd uses a custom way to Hurd-specific inject wrapper
|
|
# headers; see sysdeps/mach/Makefiles under "ifdef in-Makerules".
|
|
SINGLE_TARGET_SUBDIRS = frozenset(("hurd", "mach"))
|
|
|
|
# Name of the special subdirectory with the wrapper headers.
|
|
INCLUDE = "include"
|
|
|
|
def check_sysdeps_bits(args):
|
|
"""Check that the directory sysdeps/generic/bits does not exist."""
|
|
bits = os.path.join(args.root, 'sysdeps', 'generic', 'bits')
|
|
if os.path.exists(bits):
|
|
# See commit c72565e5f1124c2dc72573e83406fe999e56091f and
|
|
# <https://sourceware.org/ml/libc-alpha/2016-05/msg00189.html>.
|
|
print('error: directory {} has been added, use bits/ instead'.format(
|
|
os.path.relpath(os.path.realpath(bits), args.root)))
|
|
return False
|
|
return True
|
|
|
|
def check_headers_root(args):
|
|
"""Check headers located at the top level of the source tree."""
|
|
good = True
|
|
generated = frozenset(args.generated)
|
|
for header in args.headers:
|
|
if not (header.startswith('bits/')
|
|
or os.path.exists(os.path.join(args.root, INCLUDE, header))
|
|
or header in generated):
|
|
print('error: top-level header {} must be in bits/ or {}/'
|
|
.format(header, INCLUDE))
|
|
good = False
|
|
return good
|
|
|
|
def check_headers(args):
|
|
"""Check headers located in a subdirectory."""
|
|
good = True
|
|
for header in args.headers:
|
|
# Whitelist .x files, which never have include wrappers.
|
|
if header.endswith(".x"):
|
|
continue
|
|
|
|
is_nonsysdep_header = os.access(header, os.R_OK)
|
|
if is_nonsysdep_header:
|
|
# Skip Fortran header files.
|
|
if header.startswith("finclude/"):
|
|
continue
|
|
|
|
include_path = os.path.join(args.root, INCLUDE, header)
|
|
if not os.access(include_path, os.R_OK):
|
|
print('error: missing wrapper header {} for {}'.format(
|
|
os.path.join(INCLUDE, header),
|
|
os.path.relpath(os.path.realpath(header), args.root)))
|
|
good = False
|
|
return good
|
|
|
|
def main():
|
|
"""The main entry point."""
|
|
parser = argparse.ArgumentParser(
|
|
description='Check for missing wrapper headers in include/.')
|
|
parser.add_argument('--root', metavar='DIRECTORY', required=True,
|
|
help='Path to the top-level of the source tree')
|
|
parser.add_argument('--subdir', metavar='DIRECTORY', required=True,
|
|
help='Name of the subdirectory being processed')
|
|
parser.add_argument('--generated', metavar='FILE', default="", nargs="*",
|
|
help="Generated files (which are ignored)")
|
|
parser.add_argument('headers', help='Header files to process', nargs='+')
|
|
args = parser.parse_args()
|
|
|
|
good = (args.root == '.') == (args.subdir == '.')
|
|
if not good:
|
|
print('error: --root/--subdir disagree about top-of-tree location')
|
|
|
|
if args.subdir == '.':
|
|
good &= check_sysdeps_bits(args)
|
|
good &= check_headers_root(args)
|
|
elif args.subdir not in SINGLE_TARGET_SUBDIRS:
|
|
good &= check_headers(args)
|
|
|
|
if not good:
|
|
sys.exit(1)
|
|
|
|
if __name__ == '__main__':
|
|
main()
|