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| author | Jani Nikula <jani.nikula@intel.com> | 2019-06-04 15:42:48 +0300 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2019-06-15 19:57:02 +0900 |
| commit | e846f0dc57f441e5e93194d39bc9b8ac2ab5e0a4 (patch) | |
| tree | b58f3a2e11125b3ed4f35f0c0c14380e3374b9db /scripts/Makefile.build | |
| parent | 0315bb7a25267bfeee2a7aaed5d1b4ba915e0c53 (diff) | |
| download | lwn-e846f0dc57f441e5e93194d39bc9b8ac2ab5e0a4.tar.gz lwn-e846f0dc57f441e5e93194d39bc9b8ac2ab5e0a4.zip | |
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>
Diffstat (limited to 'scripts/Makefile.build')
| -rw-r--r-- | scripts/Makefile.build | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build index ae9cf740633e..ee0319560513 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -294,6 +294,15 @@ quiet_cmd_cc_lst_c = MKLST $@ $(obj)/%.lst: $(src)/%.c FORCE $(call if_changed_dep,cc_lst_c) +# Dummy C sources for header test (header-test-y target) +# --------------------------------------------------------------------------- + +quiet_cmd_header_test = HDRTEST $@ + cmd_header_test = echo "\#include \"$*.h\"" > $@ + +$(obj)/%.hdrtest.c: + $(call cmd,header_test) + # Compile assembler sources (.S) # --------------------------------------------------------------------------- |