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Diffstat (limited to 'Documentation/kbuild/kconfig-language.rst')
| -rw-r--r-- | Documentation/kbuild/kconfig-language.rst | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/kbuild/kconfig-language.rst b/Documentation/kbuild/kconfig-language.rst index 1cf1aebdd6cd..1b4875f04e13 100644 --- a/Documentation/kbuild/kconfig-language.rst +++ b/Documentation/kbuild/kconfig-language.rst @@ -553,6 +553,17 @@ with "depends on m". E.g.:: limits FOO to module (=m) or disabled (=n). +Compile-testing +~~~~~~~~~~~~~~~ +If a config symbol has a dependency, but the code controlled by the config +symbol can still be compiled if the dependency is not met, it is encouraged to +increase build coverage by adding an "|| COMPILE_TEST" clause to the +dependency. This is especially useful for drivers for more exotic hardware, as +it allows continuous-integration systems to compile-test the code on a more +common system, and detect bugs that way. +Note that compile-tested code should avoid crashing when run on a system where +the dependency is not met. + Kconfig recursive dependency limitations ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |