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

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This generates smaller resulting object code when compiled with clang.

Signed-off-by: Behan Webster <behanw@converseincode.com>
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
(cherry picked from commit 6748cb3c299de1ffbe56733647b01dbcc398c419)
Signed-off-by: Greg Hackmann <ghackmann@google.com>

Change-Id: I5336ef3af6c7c638d9a68661c3c0e3f22693fdc8
This commit is contained in:
Behan Webster 2017-03-27 18:19:09 -07:00 • committed by Greg Hackmann
parent 8c4e0602b8
commit 6602531121
1 changed files with 1 additions and 1 deletions
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Makefile
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@ -624,7 +624,7 @@ KBUILD_CFLAGS += $(call cc-disable-warning, format-overflow)
KBUILD_CFLAGS += $(call cc-disable-warning, int-in-bool-context)
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
KBUILD_CFLAGS += -Os
KBUILD_CFLAGS += $(call cc-option,-Oz,-Os)
else
ifdef CONFIG_PROFILE_ALL_BRANCHES
KBUILD_CFLAGS += -O2