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Subject[PATCH] kbuild: use -Oz instead of -Os when using clang
Date
This generates smaller resulting object code when compiled with clang.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
---
Makefile | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index b2faa9319372..66bcdbf58371 100644
--- a/Makefile
+++ b/Makefile
@@ -638,7 +638,8 @@ KBUILD_CFLAGS += $(call cc-option,-fdata-sections,)
endif

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
ifdef CONFIG_PROFILE_ALL_BRANCHES
KBUILD_CFLAGS += -O2 $(call cc-disable-warning,maybe-uninitialized,)
--
2.12.2.564.g063fe858b8-goog
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