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authorBehan Webster <behanw@converseincode.com>2017-03-27 18:19:09 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-11-27 16:07:58 +0100
commitc8250381e987589874ef68223446a5cbebac1076 (patch)
treeceb34b336d7737a130afed403126854a1d7fe577 /Makefile
parent045812536e46b13d25f2d252819c20a4a7d2079a (diff)
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kbuild: use -Oz instead of -Os when using clang
commit 6748cb3c299de1ffbe56733647b01dbcc398c419 upstream. 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> [nc: Adjust context due to lack of commit a76bcf557ef4 in linux-4.4.y] Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Makefile')
-rw-r--r--Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 0fffa99742ca..c9e27ba9152d 100644
--- a/Makefile
+++ b/Makefile
@@ -628,7 +628,7 @@ KBUILD_CFLAGS += $(call cc-disable-warning, int-in-bool-context)
KBUILD_CFLAGS += $(call cc-disable-warning, attribute-alias)
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