Revision 444ee9bd3d0fa78317c6127c961af5accf50038b authored by Kees Cook on 17 January 2013, 02:53:48 UTC, committed by Bjorn Helgaas on 17 January 2013, 23:22:05 UTC
The CONFIG_EXPERIMENTAL config item has not carried much meaning for a while now and is almost always enabled by default. As agreed during the Linux kernel summit, remove it from any "depends on" lines in Kconfigs. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
1 parent 9e16721
diffconfig
#!/usr/bin/python
#
# diffconfig - a tool to compare .config files.
#
# originally written in 2006 by Matt Mackall
# (at least, this was in his bloatwatch source code)
# last worked on 2008 by Tim Bird
#
import sys, os
def usage():
print """Usage: diffconfig [-h] [-m] [<config1> <config2>]
Diffconfig is a simple utility for comparing two .config files.
Using standard diff to compare .config files often includes extraneous and
distracting information. This utility produces sorted output with only the
changes in configuration values between the two files.
Added and removed items are shown with a leading plus or minus, respectively.
Changed items show the old and new values on a single line.
If -m is specified, then output will be in "merge" style, which has the
changed and new values in kernel config option format.
If no config files are specified, .config and .config.old are used.
Example usage:
$ diffconfig .config config-with-some-changes
-EXT2_FS_XATTR n
-EXT2_FS_XIP n
CRAMFS n -> y
EXT2_FS y -> n
LOG_BUF_SHIFT 14 -> 16
PRINTK_TIME n -> y
"""
sys.exit(0)
# returns a dictionary of name/value pairs for config items in the file
def readconfig(config_file):
d = {}
for line in config_file:
line = line[:-1]
if line[:7] == "CONFIG_":
name, val = line[7:].split("=", 1)
d[name] = val
if line[-11:] == " is not set":
d[line[9:-11]] = "n"
return d
def print_config(op, config, value, new_value):
global merge_style
if merge_style:
if new_value:
if new_value=="n":
print "# CONFIG_%s is not set" % config
else:
print "CONFIG_%s=%s" % (config, new_value)
else:
if op=="-":
print "-%s %s" % (config, value)
elif op=="+":
print "+%s %s" % (config, new_value)
else:
print " %s %s -> %s" % (config, value, new_value)
def main():
global merge_style
# parse command line args
if ("-h" in sys.argv or "--help" in sys.argv):
usage()
merge_style = 0
if "-m" in sys.argv:
merge_style = 1
sys.argv.remove("-m")
argc = len(sys.argv)
if not (argc==1 or argc == 3):
print "Error: incorrect number of arguments or unrecognized option"
usage()
if argc == 1:
# if no filenames given, assume .config and .config.old
build_dir=""
if os.environ.has_key("KBUILD_OUTPUT"):
build_dir = os.environ["KBUILD_OUTPUT"]+"/"
configa_filename = build_dir + ".config.old"
configb_filename = build_dir + ".config"
else:
configa_filename = sys.argv[1]
configb_filename = sys.argv[2]
a = readconfig(file(configa_filename))
b = readconfig(file(configb_filename))
# print items in a but not b (accumulate, sort and print)
old = []
for config in a:
if config not in b:
old.append(config)
old.sort()
for config in old:
print_config("-", config, a[config], None)
del a[config]
# print items that changed (accumulate, sort, and print)
changed = []
for config in a:
if a[config] != b[config]:
changed.append(config)
else:
del b[config]
changed.sort()
for config in changed:
print_config("->", config, a[config], b[config])
del b[config]
# now print items in b but not in a
# (items from b that were in a were removed above)
new = b.keys()
new.sort()
for config in new:
print_config("+", config, None, b[config])
main()
![swh spinner](/static/img/swh-spinner.gif)
Computing file changes ...