4.4-stable review patch. If anyone has any objections, please let me know.
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From: David Lin dtwlin@google.com
commit bb3f38c3c5b759163e09b9152629cc789731de47 upstream.
We should avoid using the space character when passing arguments to clang, because static code analysis check tool such as sparse may misinterpret the arguments followed by spaces as build targets hence cause the build to fail.
Signed-off-by: David Lin dtwlin@google.com Signed-off-by: Masahiro Yamada yamada.masahiro@socionext.com Signed-off-by: Nathan Chancellor natechancellor@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/Makefile +++ b/Makefile @@ -614,11 +614,11 @@ all: vmlinux
ifeq ($(cc-name),clang) ifneq ($(CROSS_COMPILE),) -CLANG_TARGET := -target $(notdir $(CROSS_COMPILE:%-=%)) +CLANG_TARGET := --target=$(notdir $(CROSS_COMPILE:%-=%)) GCC_TOOLCHAIN := $(realpath $(dir $(shell which $(LD)))/..) endif ifneq ($(GCC_TOOLCHAIN),) -CLANG_GCC_TC := -gcc-toolchain $(GCC_TOOLCHAIN) +CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN) endif KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC)