path: root/usr
diff options
authorMasahiro Yamada <>2019-11-07 16:14:40 +0900
committerMasahiro Yamada <>2019-11-15 00:22:35 +0900
commitfcbb8461fd2376ba3782b5b8bd440c929b8e4980 (patch)
treebfae3609f244d2ccdb1f643a83fbbbbed829018c /usr
parenteba19032f99c32ecfbe23ce99bb1546db0a23bee (diff)
kbuild: remove header compile test
There are both positive and negative options about this feature. At first, I thought it was a good idea, but actually Linus stated a negative opinion ( I admit it is ugly and annoying. The baseline I'd like to keep is the compile-test of uapi headers. (Otherwise, kernel developers have no way to ensure the correctness of the exported headers.) I will maintain a small build rule in usr/include/Makefile. Remove the other header test functionality. Signed-off-by: Masahiro Yamada <>
Diffstat (limited to 'usr')
1 files changed, 8 insertions, 4 deletions
diff --git a/usr/include/Makefile b/usr/include/Makefile
index 3e1adab089a4..325f4d0f2e73 100644
--- a/usr/include/Makefile
+++ b/usr/include/Makefile
@@ -95,9 +95,13 @@ endif
# asm-generic/*.h is used by asm/*.h, and should not be included directly
header-test- += asm-generic/%
-# The rest are compile-tested
-header-test-y += $(filter-out $(header-test-), \
- $(patsubst $(obj)/%,%, $(wildcard \
- $(addprefix $(obj)/, *.h */*.h */*/*.h */*/*/*.h))))
+extra-y := $(patsubst %.h,%.hdrtest, $(filter-out $(header-test-), \
+ $(patsubst $(obj)/%,%, $(shell find $(obj) -name '*.h'))))
+quiet_cmd_hdrtest = HDRTEST $<
+ cmd_hdrtest = $(CC) $(c_flags) -S -o /dev/null -x c /dev/null -include $<; touch $@
+$(obj)/%.hdrtest: $(obj)/%.h FORCE
+ $(call if_changed_dep,hdrtest)
clean-files += $(filter-out Makefile, $(notdir $(wildcard $(obj)/*)))