diff options
| -rw-r--r-- | scripts/checkkconfigsymbols.py | 57 |
1 files changed, 27 insertions, 30 deletions
diff --git a/scripts/checkkconfigsymbols.py b/scripts/checkkconfigsymbols.py index f944089..e9cc689 100644 --- a/scripts/checkkconfigsymbols.py +++ b/scripts/checkkconfigsymbols.py @@ -1,36 +1,31 @@ #!/usr/bin/env python -"""Find Kconfig identifieres that are referenced but not defined.""" +"""Find Kconfig identifiers that are referenced but not defined.""" -# Copyright (C) 2014 Valentin Rothberg <valentinrothberg@gmail.com> -# Copyright (C) 2014 Stefan Hengelein <stefan.hengelein@fau.de> +# (c) 2014 Valentin Rothberg <valentinrothberg@gmail.com> +# (c) 2014 Stefan Hengelein <stefan.hengelein@fau.de> # -# This program is free software; you can redistribute it and/or modify it -# under the terms and conditions of the GNU General Public License, -# version 2, as published by the Free Software Foundation. -# -# This program is distributed in the hope 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. +# Licensed under the terms of the GNU GPL License version 2 import os import re from subprocess import Popen, PIPE, STDOUT -# REGEX EXPRESSIONS + +# regex expressions OPERATORS = r"&|\(|\)|\||\!" -FEATURE = r"\w*[A-Z]{1}\w*" -CONFIG_DEF = r"^\s*(?:menu){,1}config\s+(" + FEATURE + r")\s*" +FEATURE = r"(?:\w*[A-Z0-9]\w*){2,}" +DEF = r"^\s*(?:menu){,1}config\s+(" + FEATURE + r")\s*" EXPR = r"(?:" + OPERATORS + r"|\s|" + FEATURE + r")+" STMT = r"^\s*(?:if|select|depends\s+on)\s+" + EXPR +SOURCE_FEATURE = r"(?:\W|\b)+[D]{,1}CONFIG_(" + FEATURE + r")" -# REGEX OBJECTS +# regex objects REGEX_FILE_KCONFIG = re.compile(r".*Kconfig[\.\w+\-]*$") REGEX_FEATURE = re.compile(r"(" + FEATURE + r")") -REGEX_SOURCE_FEATURE = re.compile(r"(?:D|\W|\b)+CONFIG_(" + FEATURE + r")") -REGEX_KCONFIG_DEF = re.compile(CONFIG_DEF) +REGEX_SOURCE_FEATURE = re.compile(SOURCE_FEATURE) +REGEX_KCONFIG_DEF = re.compile(DEF) REGEX_KCONFIG_EXPR = re.compile(EXPR) REGEX_KCONFIG_STMT = re.compile(STMT) REGEX_KCONFIG_HELP = re.compile(r"^\s+(help|---help---)\s*$") @@ -42,7 +37,7 @@ def main(): source_files = [] kconfig_files = [] defined_features = set() - referenced_features = dict() + referenced_features = dict() # {feature: [files]} # use 'git ls-files' to get the worklist pop = Popen("git ls-files", stdout=PIPE, stderr=STDOUT, shell=True) @@ -52,12 +47,12 @@ def main(): for gitfile in stdout.rsplit("\n"): if ".git" in gitfile or "ChangeLog" in gitfile or \ - os.path.isdir(gitfile): + ".log" in gitfile or os.path.isdir(gitfile): continue if REGEX_FILE_KCONFIG.match(gitfile): kconfig_files.append(gitfile) else: - # All non-Kconfig files are checked for consistency + # all non-Kconfig files are checked for consistency source_files.append(gitfile) for sfile in source_files: @@ -68,15 +63,17 @@ def main(): print "Undefined symbol used\tFile list" for feature in sorted(referenced_features): + # filter some false positives + if feature == "FOO" or feature == "BAR" or \ + feature == "FOO_BAR" or feature == "XXX": + continue if feature not in defined_features: if feature.endswith("_MODULE"): - # Avoid false positives for kernel modules + # avoid false positives for kernel modules if feature[:-len("_MODULE")] in defined_features: continue - if "FOO" in feature or "BAR" in feature: - continue files = referenced_features.get(feature) - print "%s:\t%s" % (feature, ", ".join(files)) + print "%s\t%s" % (feature, ", ".join(files)) def parse_source_file(sfile, referenced_features): @@ -92,9 +89,9 @@ def parse_source_file(sfile, referenced_features): for feature in features: if not REGEX_FILTER_FEATURES.search(feature): continue - paths = referenced_features.get(feature, set()) - paths.add(sfile) - referenced_features[feature] = paths + sfiles = referenced_features.get(feature, set()) + sfiles.add(sfile) + referenced_features[feature] = sfiles def get_features_in_line(line): @@ -113,7 +110,7 @@ def parse_kconfig_file(kfile, defined_features, referenced_features): for i in range(len(lines)): line = lines[i] line = line.strip('\n') - line = line.split("#")[0] # Ignore Kconfig comments + line = line.split("#")[0] # ignore comments if REGEX_KCONFIG_DEF.match(line): feature_def = REGEX_KCONFIG_DEF.findall(line) @@ -122,11 +119,11 @@ def parse_kconfig_file(kfile, defined_features, referenced_features): elif REGEX_KCONFIG_HELP.match(line): skip = True elif skip: - # Ignore content of help messages + # ignore content of help messages pass elif REGEX_KCONFIG_STMT.match(line): features = get_features_in_line(line) - # Multi-line statements + # multi-line statements while line.endswith("\\"): i += 1 line = lines[i] |