46 lines
1.2 KiB
Python
46 lines
1.2 KiB
Python
|
#!/usr/bin/env python3
|
||
|
|
|
||
|
|
# Copyright (c) 2018-2019, Ulf Magnusson
|
||
|
|
# SPDX-License-Identifier: ISC
|
||
|
|
|
||
|
|
"""
|
||
|
|
Writes a configuration file where as many symbols as possible are set to 'n'.
|
||
|
|
|
||
|
|
The default output filename is '.config'. A different filename can be passed
|
||
|
|
in the KCONFIG_CONFIG environment variable.
|
||
|
|
|
||
|
|
Usage for the Linux kernel:
|
||
|
|
|
||
|
|
$ make [ARCH=<arch>] scriptconfig SCRIPT=Kconfiglib/allnoconfig.py
|
||
|
|
"""
|
||
|
|
|
||
|
|
# See examples/allnoconfig_walk.py for another way to implement this script
|
||
|
|
|
||
|
|
import kconfiglib
|
||
|
|
|
||
|
|
|
||
|
|
def main():
|
||
|
|
kconf = kconfiglib.standard_kconfig(__doc__)
|
||
|
|
|
||
|
|
# Avoid warnings that would otherwise get printed by Kconfiglib for the
|
||
|
|
# following:
|
||
|
|
#
|
||
|
|
# 1. Assigning a value to a symbol without a prompt, which never has any
|
||
|
|
# effect
|
||
|
|
#
|
||
|
|
# 2. Assigning values invalid for the type (only bool/tristate symbols
|
||
|
|
# accept 0/1/2, for n/m/y). The assignments will be ignored for other
|
||
|
|
# symbol types, which is what we want.
|
||
|
|
kconf.warn = False
|
||
|
|
for sym in kconf.unique_defined_syms:
|
||
|
|
sym.set_value(2 if sym.is_allnoconfig_y else 0)
|
||
|
|
kconf.warn = True
|
||
|
|
|
||
|
|
kconf.load_allconfig("allno.config")
|
||
|
|
|
||
|
|
print(kconf.write_config())
|
||
|
|
|
||
|
|
|
||
|
|
if __name__ == "__main__":
|
||
|
|
main()
|