tree b58f3a2e11125b3ed4f35f0c0c14380e3374b9db
parent 0315bb7a25267bfeee2a7aaed5d1b4ba915e0c53
author Jani Nikula <jani.nikula@intel.com> 1559652168 +0300
committer Masahiro Yamada <yamada.masahiro@socionext.com> 1560596222 +0900

kbuild: add support for ensuring headers are self-contained

Sometimes it's useful to be able to explicitly ensure certain headers
remain self-contained, i.e. that they are compilable as standalone
units, by including and/or forward declaring everything they depend on.

Add special target header-test-y where individual Makefiles can add
headers to be tested if CONFIG_HEADER_TEST is enabled. This will
generate a dummy C file per header that gets built as part of extra-y.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>