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checkkconfigsymblos: consistent symbol terminology 

'symbol' and 'feature' are used synonymously to refer to Kconfig symbols
(configs, menus, etc.).  Use the term 'symbol' to have a consistent
terminology and to make the code more comprehensible.

Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Valentin Rothberg 2016-08-28 08:51:31 +02:00 committed by Greg Kroah-Hartman
parent 36c79c7fac
commit ef3f55438d
1 changed files with 66 additions and 66 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

132
scripts/checkkconfigsymbols.py
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@ -20,22 +20,22 @@ from multiprocessing import Pool, cpu_count
# regex expressions
OPERATORS = r"&|\(|\)|\||\!"
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")+"
SYMBOL = r"(?:\w*[A-Z0-9]\w*){2,}"
DEF = r"^\s*(?:menu){,1}config\s+(" + SYMBOL + r")\s*"
EXPR = r"(?:" + OPERATORS + r"|\s|" + SYMBOL + r")+"
DEFAULT = r"default\s+.*?(?:if\s.+){,1}"
STMT = r"^\s*(?:if|select|depends\s+on|(?:" + DEFAULT + r"))\s+" + EXPR
SOURCE_FEATURE = r"(?:\W|\b)+[D]{,1}CONFIG_(" + FEATURE + r")"
SOURCE_SYMBOL = r"(?:\W|\b)+[D]{,1}CONFIG_(" + SYMBOL + r")"
# regex objects
REGEX_FILE_KCONFIG = re.compile(r".*Kconfig[\.\w+\-]*$")
REGEX_FEATURE = re.compile(r'(?!\B)' + FEATURE + r'(?!\B)')
REGEX_SOURCE_FEATURE = re.compile(SOURCE_FEATURE)
REGEX_SYMBOL = re.compile(r'(?!\B)' + SYMBOL + r'(?!\B)')
REGEX_SOURCE_SYMBOL = re.compile(SOURCE_SYMBOL)
REGEX_KCONFIG_DEF = re.compile(DEF)
REGEX_KCONFIG_EXPR = re.compile(EXPR)
REGEX_KCONFIG_STMT = re.compile(STMT)
REGEX_KCONFIG_HELP = re.compile(r"^\s+(help|---help---)\s*$")
REGEX_FILTER_FEATURES = re.compile(r"[A-Za-z0-9]$")
REGEX_FILTER_SYMBOLS = re.compile(r"[A-Za-z0-9]$")
REGEX_NUMERIC = re.compile(r"0[xX][0-9a-fA-F]+|[0-9]+")
REGEX_QUOTES = re.compile("(\"(.*?)\")")
@ -157,17 +157,17 @@ def main():
undefined_b, defined = check_symbols(args.ignore)
# report cases that are present for the commit but not before
for feature in sorted(undefined_b):
# feature has not been undefined before
if feature not in undefined_a:
files = sorted(undefined_b.get(feature))
undefined[feature] = files
# check if there are new files that reference the undefined feature
for symbol in sorted(undefined_b):
# symbol has not been undefined before
if symbol not in undefined_a:
files = sorted(undefined_b.get(symbol))
undefined[symbol] = files
# check if there are new files that reference the undefined symbol
else:
files = sorted(undefined_b.get(feature) -
undefined_a.get(feature))
files = sorted(undefined_b.get(symbol) -
undefined_a.get(symbol))
if files:
undefined[feature] = files
undefined[symbol] = files
# reset to head
execute("git reset --hard %s" % head)
@ -177,13 +177,13 @@ def main():
undefined, defined = check_symbols(args.ignore)
# now print the output
for feature in sorted(undefined):
print(red(feature))
for symbol in sorted(undefined):
print(red(symbol))
files = sorted(undefined.get(feature))
files = sorted(undefined.get(symbol))
print("%s: %s" % (yel("Referencing files"), ", ".join(files)))
sims = find_sims(feature, args.ignore, defined)
sims = find_sims(symbol, args.ignore, defined)
sims_out = yel("Similar symbols")
if sims:
print("%s: %s" % (sims_out, ', '.join(sims)))
@ -192,7 +192,7 @@ def main():
if args.find:
print("%s:" % yel("Commits changing symbol"))
commits = find_commits(feature, args.diff)
commits = find_commits(symbol, args.diff)
if commits:
for commit in commits:
commit = commit.split(" ", 1)
@ -317,8 +317,8 @@ def check_symbols_helper(pool, ignore):
check_symbols() in order to properly terminate running worker processes."""
source_files = []
kconfig_files = []
defined_features = []
referenced_features = dict() # {file: [features]}
defined_symbols = []
referenced_symbols = dict() # {file: [symbols]}
for gitfile in get_files():
if REGEX_FILE_KCONFIG.match(gitfile):
@ -332,51 +332,51 @@ def check_symbols_helper(pool, ignore):
# parse source files
arglist = partition(source_files, cpu_count())
for res in pool.map(parse_source_files, arglist):
referenced_features.update(res)
referenced_symbols.update(res)
# parse kconfig files
arglist = []
for part in partition(kconfig_files, cpu_count()):
arglist.append((part, ignore))
for res in pool.map(parse_kconfig_files, arglist):
defined_features.extend(res[0])
referenced_features.update(res[1])
defined_features = set(defined_features)
defined_symbols.extend(res[0])
referenced_symbols.update(res[1])
defined_symbols = set(defined_symbols)
# inverse mapping of referenced_features to dict(feature: [files])
# inverse mapping of referenced_symbols to dict(symbol: [files])
inv_map = dict()
for _file, features in referenced_features.items():
for feature in features:
inv_map[feature] = inv_map.get(feature, set())
inv_map[feature].add(_file)
referenced_features = inv_map
for _file, symbols in referenced_symbols.items():
for symbol in symbols:
inv_map[symbol] = inv_map.get(symbol, set())
inv_map[symbol].add(_file)
referenced_symbols = inv_map
undefined = {} # {feature: [files]}
for feature in sorted(referenced_features):
undefined = {} # {symbol: [files]}
for symbol in sorted(referenced_symbols):
# filter some false positives
if feature == "FOO" or feature == "BAR" or \
feature == "FOO_BAR" or feature == "XXX":
if symbol == "FOO" or symbol == "BAR" or \
symbol == "FOO_BAR" or symbol == "XXX":
continue
if feature not in defined_features:
if feature.endswith("_MODULE"):
if symbol not in defined_symbols:
if symbol.endswith("_MODULE"):
# avoid false positives for kernel modules
if feature[:-len("_MODULE")] in defined_features:
if symbol[:-len("_MODULE")] in defined_symbols:
continue
undefined[feature] = referenced_features.get(feature)
return undefined, defined_features
undefined[symbol] = referenced_symbols.get(symbol)
return undefined, defined_symbols
def parse_source_files(source_files):
"""Parse each source file in @source_files and return dictionary with source
files as keys and lists of references Kconfig symbols as values."""
referenced_features = dict()
referenced_symbols = dict()
for sfile in source_files:
referenced_features[sfile] = parse_source_file(sfile)
return referenced_features
referenced_symbols[sfile] = parse_source_file(sfile)
return referenced_symbols
def parse_source_file(sfile):
"""Parse @sfile and return a list of referenced Kconfig features."""
"""Parse @sfile and return a list of referenced Kconfig symbols."""
lines = []
references = []
@ -389,18 +389,18 @@ def parse_source_file(sfile):
for line in lines:
if "CONFIG_" not in line:
continue
features = REGEX_SOURCE_FEATURE.findall(line)
for feature in features:
if not REGEX_FILTER_FEATURES.search(feature):
symbols = REGEX_SOURCE_SYMBOL.findall(line)
for symbol in symbols:
if not REGEX_FILTER_SYMBOLS.search(symbol):
continue
references.append(feature)
references.append(symbol)
return references
def get_features_in_line(line):
"""Return mentioned Kconfig features in @line."""
return REGEX_FEATURE.findall(line)
def get_symbols_in_line(line):
"""Return mentioned Kconfig symbols in @line."""
return REGEX_SYMBOL.findall(line)
def parse_kconfig_files(args):
@ -409,21 +409,21 @@ def parse_kconfig_files(args):
pattern."""
kconfig_files = args[0]
ignore = args[1]
defined_features = []
referenced_features = dict()
defined_symbols = []
referenced_symbols = dict()
for kfile in kconfig_files:
defined, references = parse_kconfig_file(kfile)
defined_features.extend(defined)
defined_symbols.extend(defined)
if ignore and re.match(ignore, kfile):
# do not collect references for files that match the ignore pattern
continue
referenced_features[kfile] = references
return (defined_features, referenced_features)
referenced_symbols[kfile] = references
return (defined_symbols, referenced_symbols)
def parse_kconfig_file(kfile):
"""Parse @kfile and update feature definitions and references."""
"""Parse @kfile and update symbol definitions and references."""
lines = []
defined = []
references = []
@ -441,8 +441,8 @@ def parse_kconfig_file(kfile):
line = line.split("#")[0] # ignore comments
if REGEX_KCONFIG_DEF.match(line):
feature_def = REGEX_KCONFIG_DEF.findall(line)
defined.append(feature_def[0])
symbol_def = REGEX_KCONFIG_DEF.findall(line)
defined.append(symbol_def[0])
skip = False
elif REGEX_KCONFIG_HELP.match(line):
skip = True
@ -451,18 +451,18 @@ def parse_kconfig_file(kfile):
pass
elif REGEX_KCONFIG_STMT.match(line):
line = REGEX_QUOTES.sub("", line)
features = get_features_in_line(line)
symbols = get_symbols_in_line(line)
# multi-line statements
while line.endswith("\\"):
i += 1
line = lines[i]
line = line.strip('\n')
features.extend(get_features_in_line(line))
for feature in set(features):
if REGEX_NUMERIC.match(feature):
symbols.extend(get_symbols_in_line(line))
for symbol in set(symbols):
if REGEX_NUMERIC.match(symbol):
# ignore numeric values
continue
references.append(feature)
references.append(symbol)
return defined, references