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authorBehan Webster <behanw@converseincode.com>2017-03-27 18:19:09 -0700
committerMasahiro Yamada <yamada.masahiro@socionext.com>2017-04-13 05:30:25 +0900
commit6748cb3c299de1ffbe56733647b01dbcc398c419 (patch)
tree2863d5e508aaa8efde14736cf4b61d8dacae0201 /Makefile
parentc3f0d0bc5b01ad90c45276952802455750444b4f (diff)
downloadop-kernel-dev-6748cb3c299de1ffbe56733647b01dbcc398c419.zip
op-kernel-dev-6748cb3c299de1ffbe56733647b01dbcc398c419.tar.gz
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>
Diffstat (limited to 'Makefile')
-rw-r--r--Makefile3
1 files changed, 2 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index ae49fef..d266186 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,)
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