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#! /usr/bin/env python2
# -*- coding: utf-8 -*-
# Copyright (c) 2011-2017, The Linux Foundation. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of The Linux Foundation nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
# IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# Invoke clang, look for static analyzer warnings, and cause a failure
# if there are non-whitelisted warnings.
import errno
import re
import os
import sys
import subprocess
allowed_warnings = set([
"list.h:80",
])
# Capture the name of the object file, if can find it.
ofile = None
warning_re = re.compile(r'''(.*/|)([^/]+\.[a-z]+:\d+):(\d+:)? clang_sa_warning:''')
def interpret_warning(line):
"""Decode the message from clang. The messages we care about have a filename, and a warning"""
line = line.rstrip('\n')
m = warning_re.match(line)
if m and m.group(2) not in allowed_warnings:
print "error, forbidden warning:", m.group(2)
# If there is a warning, remove any object if it exists.
if ofile:
try:
os.remove(ofile)
except OSError:
pass
sys.exit(1)
def run_clang():
args = sys.argv[1:]
# Look for -o
try:
i = args.index('-o')
global ofile
ofile = args[i+1]
except (ValueError, IndexError):
pass
compiler = sys.argv[0]
try:
proc = subprocess.Popen(args, stderr=subprocess.PIPE)
for line in proc.stderr:
print line,
interpret_warning(line)
result = proc.wait()
except OSError as e:
result = e.errno
if result == errno.ENOENT:
print args[0] + ':',e.strerror
print 'Is your PATH set correctly?'
else:
print ' '.join(args), str(e)
return result
if __name__ == '__main__':
status = run_clang()
sys.exit(status)
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