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https://github.com/riscv-software-src/opensbi
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422f0e0486
We adopt Kconfiglib v14.1.0 sources under scripts directory so that top-level OpenSBI makefile can directly use Kconfiglib scripts without expecting users to install a particular version of Kconfiglib on their build system. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Tested-by: Andrew Jones <ajones@ventanamicro.com> Acked-by: Atish Patra <atishp@rivosinc.com> Tested-by: Atish Patra <atishp@rivosinc.com>
46 lines
1.2 KiB
Python
Executable File
46 lines
1.2 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (c) 2018-2019, Ulf Magnusson
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# SPDX-License-Identifier: ISC
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"""
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Writes a configuration file where as many symbols as possible are set to 'n'.
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The default output filename is '.config'. A different filename can be passed
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in the KCONFIG_CONFIG environment variable.
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Usage for the Linux kernel:
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$ make [ARCH=<arch>] scriptconfig SCRIPT=Kconfiglib/allnoconfig.py
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"""
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# See examples/allnoconfig_walk.py for another way to implement this script
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import kconfiglib
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def main():
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kconf = kconfiglib.standard_kconfig(__doc__)
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# Avoid warnings that would otherwise get printed by Kconfiglib for the
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# following:
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#
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# 1. Assigning a value to a symbol without a prompt, which never has any
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# effect
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#
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# 2. Assigning values invalid for the type (only bool/tristate symbols
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# accept 0/1/2, for n/m/y). The assignments will be ignored for other
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# symbol types, which is what we want.
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kconf.warn = False
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for sym in kconf.unique_defined_syms:
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sym.set_value(2 if sym.is_allnoconfig_y else 0)
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kconf.warn = True
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kconf.load_allconfig("allno.config")
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print(kconf.write_config())
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if __name__ == "__main__":
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main()
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