1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
#!/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()
|
