kconfig validation about kconfiglib HOT 3 CLOSED

Closing for now. Open another issue (or reopen this one, if that's possible) if you have other questions.

from kconfiglib.

Hello,

If you want to check that each value set in a defconfig file matches the final value the symbol gets, then you could do the following, adapted from merge_config.py:

...
kconf.load_config(defconfig_file_to_check)

# Print warnings for symbols whose actual value doesn't match the assigned
# value
for sym in kconf.defined_syms:
    # Was the symbol assigned to?
    if sym.user_value is not None:
        # Tristate values are represented as 0, 1, 2. Having them as
        # "n", "m", "y" is more convenient here, so convert.
        if sym.type in (BOOL, TRISTATE):
            user_value = TRI_TO_STR[sym.user_value]
        else:
            user_value = sym.user_value

        if user_value != sym.str_value:
            print('warning: {} was assigned the value "{}" but got the '
                  'value "{}" -- check dependencies'
                  .format(sym.name, user_value, sym.str_value))

This works fine for defconfig files, because you always expect the final value to match the assigned value in those (look up make savedefconfig -- they're a kind of "minimal" .config from which the full .config is derived). It might get a bit more iffy for old "full" .config files.

If you want to do a batch job over multiple defconfig files in the kernel, take a look at how the test_defconfig() test is implemented in the test suite. The list_undefined.py script might give you some ideas too.

from kconfiglib.

Thanks for the pointers :) I'll try

from kconfiglib.