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-rw-r--r--scripts/checkkconfigsymbols.py57
1 files changed, 27 insertions, 30 deletions
diff --git a/scripts/checkkconfigsymbols.py b/scripts/checkkconfigsymbols.py
index f9440891d048..e9cc689033fe 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]