0545e9dc6d
commit d1edce71135cc6d98c0a4b5729774542b676e769 Author: sophgo-forum-service <forum_service@sophgo.com> Date: Fri Mar 15 16:07:33 2024 +0800 [fix] recommend using ssh method to clone repo. [fix] fix sensor driver repo branch name.
67 lines
1.9 KiB
Python
67 lines
1.9 KiB
Python
# This is tree-walking version of allnoconfig.py, for demonstration purposes.
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# Verified by the test suite to generate identical output to 'make allnoconfig'
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# for all ARCHes.
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#
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# Note: A more practical version would use Kconfig.node_iter(). The manual tree
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# walking is for demonstration purposes.
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#
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# Usage for the Linux kernel:
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#
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# $ make [ARCH=<arch>] scriptconfig SCRIPT=Kconfiglib/examples/allnoconfig_walk.py
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import sys
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from kconfiglib import Kconfig, Symbol
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def do_allnoconfig(node):
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global changed
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# Walk the tree of menu nodes. You can imagine this as going down/into menu
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# entries in the menuconfig interface, setting each to n (or the lowest
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# assignable value).
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while node:
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if isinstance(node.item, Symbol):
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sym = node.item
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# Is the symbol a non-allnoconfig_y symbol that can be set to a
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# lower value than its current value?
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if (not sym.is_allnoconfig_y and
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sym.assignable and
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sym.assignable[0] < sym.tri_value):
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# Yup, lower it
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sym.set_value(sym.assignable[0])
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changed = True
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# Recursively lower children
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if node.list:
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do_allnoconfig(node.list)
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node = node.next
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# Parse the Kconfig files
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kconf = Kconfig(sys.argv[1])
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# Do an initial pass to set 'option allnoconfig_y' symbols to y
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for sym in kconf.unique_defined_syms:
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if sym.is_allnoconfig_y:
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sym.set_value(2)
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while True:
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# Changing later symbols in the configuration can sometimes allow earlier
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# symbols to be lowered, e.g. if a later symbol 'select's an earlier
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# symbol. To handle such situations, we do additional passes over the tree
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# until we're no longer able to change the value of any symbol in a pass.
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changed = False
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do_allnoconfig(kconf.top_node)
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# Did the pass change any symbols?
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if not changed:
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break
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print(kconf.write_config())
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