android_kernel_samsung_a23xq/scripts/gcc-wrapper.py

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#! /usr/bin/env python3
# SPDX-License-Identifier: GPL-2.0-only
# Copyright (c) 2011-2017, 2018 The Linux Foundation. All rights reserved.
# -*- coding: utf-8 -*-
# Invoke gcc, looking for warnings, and causing a failure if there are
# non-whitelisted warnings.
import errno
import re
import os
import sys
import subprocess
# Note that gcc uses unicode, which may depend on the locale. TODO:
# force LANG to be set to en_US.UTF-8 to get consistent warnings.
allowed_warnings = set([
"umid.c:138",
"umid.c:213",
"umid.c:388",
"coresight-catu.h:116",
"mprotect.c:42",
"signal.c:95",
"signal.c:51",
])
# Capture the name of the object file, can find it.
ofile = None
warning_re = re.compile(r'''(.*/|)([^/]+\.[a-z]+:\d+):(\d+:)? warning:''')
def interpret_warning(line):
"""Decode the message from gcc. The messages we care about have a filename, and a warning"""
line = line.rstrip().decode()
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_gcc():
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, end=' ')
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_gcc()
sys.exit(status)