blob: 15cca5ff2df886d8ea2777df844e7359821f0d7e [file] [log] [blame]
#!/usr/bin/env python3
# Script to analyze warnings produced by clang.
# This file is part of GCC.
# GCC is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 3, or (at your option) any later
# version.
# GCC 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 General Public License
# for more details.
# You should have received a copy of the GNU General Public License
# along with GCC; see the file COPYING3. If not see
# <>. */
import sys
import argparse
def skip_warning(filename, message):
ignores = {
'': ['-Warray-bounds', '-Wmismatched-tags', 'gcc_gfc: -Wignored-attributes', '-Wchar-subscripts',
'string literal (potentially insecure): -Wformat-security', '-Wdeprecated-register',
'-Wvarargs', 'keyword is hidden by macro definition', "but the argument has type 'char *': -Wformat-pedantic",
'-Wnested-anon-types', 'qualifier in explicit instantiation of', 'attribute argument not supported: asm_fprintf',
'when in C++ mode, this behavior is deprecated', '-Wignored-attributes', '-Wgnu-zero-variadic-macro-arguments',
'insn-modes.c': ['-Wshift-count-overflow'],
'insn-emit.c': ['-Wtautological-compare'],
'insn-attrtab.c': ['-Wparentheses-equality'],
'gimple-match.c': ['-Wunused-', '-Wtautological-compare'],
'generic-match.c': ['-Wunused-', '-Wtautological-compare'],
'': ['-Wparentheses-equality', '-Wtautological-compare'],
'': ['-Wparentheses-equality', '-Wtautological-compare'],
'genautomata.c': ['-Wstring-plus-int']
for name, ignores in ignores.items():
for i in ignores:
if name in filename and i in message:
return True
return False
parser = argparse.ArgumentParser()
parser.add_argument('log', help = 'Log file with clang warnings')
args = parser.parse_args()
lines = [l.strip() for l in open(args.log)]
total = 0
messages = []
for l in lines:
token = ': warning: '
i = l.find(token)
if i != -1:
location = l[:i]
message = l[i + len(token):]
if not skip_warning(location, message):
total += 1
for l in sorted(messages):
print('\nTotal warnings: %d' % total)