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#!/usr/bin/env python
# Copyright (c) 2018-2019, Ulf Magnusson
# SPDX-License-Identifier: ISC
# Works like 'make allyesconfig'. Verified by the test suite to generate output
# identical to 'make allyesconfig', for all ARCHES.
#
# In theory, we need to handle choices in two different modes:
#
# y: One symbol is y, the rest are n
# m: Any number of symbols are m, the rest are n
#
# Only tristate choices can be in m mode.
#
# Here's a convoluted example of how you might get an m-mode choice even during
# allyesconfig:
#
# choice
# tristate "weird choice"
# depends on m
#
# ...
#
# endchoice
#
# 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/examples/allyesconfig.py
import kconfiglib
def main():
kconf = kconfiglib.standard_kconfig()
# See allnoconfig.py
kconf.disable_warnings()
# Try to set all symbols to 'y'. Dependencies might truncate the value down
# later, but this will at least give the highest possible value.
#
# Assigning 0/1/2 to non-bool/tristate symbols has no effect (int/hex
# symbols still take a string, because they preserve formatting).
for sym in kconf.unique_defined_syms:
# Set choice symbols to 'm'. This value will be ignored for choices in
# 'y' mode (the "normal" mode), which will instead just get their
# default selection, but will set all symbols in m-mode choices to 'm',
# which is as high as they can go.
sym.set_value(1 if sym.choice else 2)
# Set all choices to the highest possible mode
for choice in kconf.unique_choices:
choice.set_value(2)
kconf.enable_warnings()
kconfiglib.load_allconfig(kconf, "allyes.config")
kconf.write_config()
if __name__ == "__main__":
main()
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