Commit 66025311 authored Mar 27, 2017 by Behan Webster Committed by Greg Hackmann Oct 09, 2017

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



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

parent 8c4e0602

Makefile

+1 −1

Original line number	Diff line number	Diff line
		@@ -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