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Diffstat (limited to 'Documentation/kbuild/kconfig-language.rst')
| -rw-r--r-- | Documentation/kbuild/kconfig-language.rst | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/kbuild/kconfig-language.rst b/Documentation/kbuild/kconfig-language.rst index 86be5b857cc4..1fb3f5e6193c 100644 --- a/Documentation/kbuild/kconfig-language.rst +++ b/Documentation/kbuild/kconfig-language.rst @@ -150,6 +150,12 @@ applicable everywhere (see syntax). That will limit the usefulness but on the other hand avoid the illegal configurations all over. + If "select" <symbol> is followed by "if" <expr>, <symbol> will be + selected by the logical AND of the value of the current menu symbol + and <expr>. This means, the lower limit can be downgraded due to the + presence of "if" <expr>. This behavior may seem weird, but we rely on + it. (The future of this behavior is undecided.) + - weak reverse dependencies: "imply" <symbol> ["if" <expr>] This is similar to "select" as it enforces a lower limit on another @@ -202,6 +208,10 @@ applicable everywhere (see syntax). imply BAR imply BAZ + Note: If "imply" <symbol> is followed by "if" <expr>, the default of <symbol> + will be the logical AND of the value of the current menu symbol and <expr>. + (The future of this behavior is undecided.) + - limiting menu display: "visible if" <expr> This attribute is only applicable to menu blocks, if the condition is |