diff options
Diffstat (limited to 'kernel/scripts/checkkconfigsymbols.py')
| -rwxr-xr-x | kernel/scripts/checkkconfigsymbols.py | 86 |
1 files changed, 73 insertions, 13 deletions
diff --git a/kernel/scripts/checkkconfigsymbols.py b/kernel/scripts/checkkconfigsymbols.py index 74086a583..2f4b7ffd5 100755 --- a/kernel/scripts/checkkconfigsymbols.py +++ b/kernel/scripts/checkkconfigsymbols.py @@ -1,8 +1,8 @@ -#!/usr/bin/env python +#!/usr/bin/env python2 """Find Kconfig symbols that are referenced but not defined.""" -# (c) 2014-2015 Valentin Rothberg <Valentin.Rothberg@lip6.fr> +# (c) 2014-2015 Valentin Rothberg <valentinrothberg@gmail.com> # (c) 2014 Stefan Hengelein <stefan.hengelein@fau.de> # # Licensed under the terms of the GNU GPL License version 2 @@ -20,18 +20,20 @@ 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")+" -STMT = r"^\s*(?:if|select|depends\s+on)\s+" + EXPR +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")" # regex objects REGEX_FILE_KCONFIG = re.compile(r".*Kconfig[\.\w+\-]*$") -REGEX_FEATURE = re.compile(r"(" + FEATURE + r")") +REGEX_FEATURE = re.compile(r'(?!\B"[^"]*)' + FEATURE + r'(?![^"]*"\B)') REGEX_SOURCE_FEATURE = re.compile(SOURCE_FEATURE) REGEX_KCONFIG_DEF = re.compile(DEF) REGEX_KCONFIG_EXPR = re.compile(EXPR) REGEX_KCONFIG_STMT = re.compile(STMT) REGEX_KCONFIG_HELP = re.compile(r"^\s+(help|---help---)\s*$") REGEX_FILTER_FEATURES = re.compile(r"[A-Za-z0-9]$") +REGEX_NUMERIC = re.compile(r"0[xX][0-9a-fA-F]+|[0-9]+") def parse_options(): @@ -58,6 +60,17 @@ def parse_options(): "input format bases on Git log's " "\'commmit1..commit2\'.") + parser.add_option('-f', '--find', dest='find', action='store_true', + default=False, + help="Find and show commits that may cause symbols to be " + "missing. Required to run with --diff.") + + parser.add_option('-i', '--ignore', dest='ignore', action='store', + default="", + help="Ignore files matching this pattern. Note that " + "the pattern needs to be a Python regex. To " + "ignore defconfigs, specify -i '.*defconfig'.") + parser.add_option('', '--force', dest='force', action='store_true', default=False, help="Reset current Git tree even when it's dirty.") @@ -80,6 +93,15 @@ def parse_options(): "'--force' if you\nwant to ignore this warning and " "continue.") + if opts.commit: + opts.find = False + + if opts.ignore: + try: + re.match(opts.ignore, "this/is/just/a/test.c") + except: + sys.exit("Please specify a valid Python regex.") + return opts @@ -105,34 +127,54 @@ def main(): # get undefined items before the commit execute("git reset --hard %s" % commit_a) - undefined_a = check_symbols() + undefined_a = check_symbols(opts.ignore) # get undefined items for the commit execute("git reset --hard %s" % commit_b) - undefined_b = check_symbols() + undefined_b = check_symbols(opts.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 not feature in undefined_a: files = sorted(undefined_b.get(feature)) - print "%s\t%s" % (feature, ", ".join(files)) + print "%s\t%s" % (yel(feature), ", ".join(files)) + if opts.find: + commits = find_commits(feature, opts.diff) + print red(commits) # check if there are new files that reference the undefined feature else: files = sorted(undefined_b.get(feature) - undefined_a.get(feature)) if files: - print "%s\t%s" % (feature, ", ".join(files)) + print "%s\t%s" % (yel(feature), ", ".join(files)) + if opts.find: + commits = find_commits(feature, opts.diff) + print red(commits) # reset to head execute("git reset --hard %s" % head) # default to check the entire tree else: - undefined = check_symbols() + undefined = check_symbols(opts.ignore) for feature in sorted(undefined): files = sorted(undefined.get(feature)) - print "%s\t%s" % (feature, ", ".join(files)) + print "%s\t%s" % (yel(feature), ", ".join(files)) + + +def yel(string): + """ + Color %string yellow. + """ + return "\033[33m%s\033[0m" % string + + +def red(string): + """ + Color %string red. + """ + return "\033[31m%s\033[0m" % string def execute(cmd): @@ -144,6 +186,13 @@ def execute(cmd): return stdout +def find_commits(symbol, diff): + """Find commits changing %symbol in the given range of %diff.""" + commits = execute("git log --pretty=oneline --abbrev-commit -G %s %s" + % (symbol, diff)) + return commits + + def tree_is_dirty(): """Return true if the current working tree is dirty (i.e., if any file has been added, deleted, modified, renamed or copied but not committed).""" @@ -160,9 +209,10 @@ def get_head(): return stdout.strip('\n') -def check_symbols(): +def check_symbols(ignore): """Find undefined Kconfig symbols and return a dict with the symbol as key - and a list of referencing files as value.""" + and a list of referencing files as value. Files matching %ignore are not + checked for undefined symbols.""" source_files = [] kconfig_files = [] defined_features = set() @@ -185,10 +235,17 @@ def check_symbols(): source_files.append(gitfile) for sfile in source_files: + if ignore and re.match(ignore, sfile): + # do not check files matching %ignore + continue parse_source_file(sfile, referenced_features) for kfile in kconfig_files: - parse_kconfig_file(kfile, defined_features, referenced_features) + if ignore and re.match(ignore, kfile): + # do not collect references for files matching %ignore + parse_kconfig_file(kfile, defined_features, dict()) + else: + parse_kconfig_file(kfile, defined_features, referenced_features) undefined = {} # {feature: [files]} for feature in sorted(referenced_features): @@ -259,6 +316,9 @@ def parse_kconfig_file(kfile, defined_features, referenced_features): line = line.strip('\n') features.extend(get_features_in_line(line)) for feature in set(features): + if REGEX_NUMERIC.match(feature): + # ignore numeric values + continue paths = referenced_features.get(feature, set()) paths.add(kfile) referenced_features[feature] = paths |