| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.4 13/70] kbuild: use -Oz instead of -Os when using clang | Date | Mon, 26 Nov 2018 11:50:28 +0100 |
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4.4-stable review patch. If anyone has any objections, please let me know.
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From: Behan Webster <behanw@converseincode.com>
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> --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/Makefile +++ b/Makefile @@ -628,7 +628,7 @@ KBUILD_CFLAGS += $(call cc-disable-warni 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
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