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Diffstat (limited to 'scripts/Kconfiglib/allnoconfig.py')
-rwxr-xr-x | scripts/Kconfiglib/allnoconfig.py | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/scripts/Kconfiglib/allnoconfig.py b/scripts/Kconfiglib/allnoconfig.py new file mode 100755 index 0000000..de90d8b --- /dev/null +++ b/scripts/Kconfiglib/allnoconfig.py @@ -0,0 +1,45 @@ +#!/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() |