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Commit 6748cb3c authored by Behan Webster's avatar Behan Webster Committed by Masahiro Yamada
Browse files

kbuild: use -Oz instead of -Os when using clang 



This generates smaller resulting object code when compiled with clang.

Signed-off-by: default avatarBehan Webster <behanw@converseincode.com>
Signed-off-by: default avatarMatthias Kaehlcke <mka@chromium.org>
Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
parent c3f0d0bc

Makefile

+2 −1
Original line number Original line Diff line number Diff line
@@ -638,7 +638,8 @@ KBUILD_CFLAGS += $(call cc-option,-fdata-sections,) 
endif

endif





ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE

ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE

KBUILD_CFLAGS	+= -Os $(call cc-disable-warning,maybe-uninitialized,)

KBUILD_CFLAGS	+= $(call cc-option,-Oz,-Os)

KBUILD_CFLAGS	+= $(call cc-disable-warning,maybe-uninitialized,)

else

else

ifdef CONFIG_PROFILE_ALL_BRANCHES

ifdef CONFIG_PROFILE_ALL_BRANCHES

KBUILD_CFLAGS	+= -O2 $(call cc-disable-warning,maybe-uninitialized,)

KBUILD_CFLAGS	+= -O2 $(call cc-disable-warning,maybe-uninitialized,)