[PATCH v2 1/2] kbuild: add -no-integrated-as Clang option unconditionally
From: Masahiro Yamada <hidden>
Date: 2018-11-06 03:06:44
Also in:
linux-kbuild, lkml
Subsystem:
kernel build + files below scripts/ (unless maintained elsewhere), the rest · Maintainers:
Nathan Chancellor, Nicolas Schier, Linus Torvalds
We are still a way off the Clang's integrated assembler support for the kernel. Hence, -no-integrated-as is mandatory to build the kernel with Clang. If you had an ancient version of Clang that does not recognize this option, you would not be able to compile the kernel anyway. Signed-off-by: Masahiro Yamada <redacted> --- Changes in v2: - New patch Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/Makefile b/Makefile
index 93315eb..da11700 100644
--- a/Makefile
+++ b/Makefile@@ -497,8 +497,8 @@ CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN) endif KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC) $(CLANG_PREFIX) -KBUILD_CFLAGS += $(call cc-option, -no-integrated-as) -KBUILD_AFLAGS += $(call cc-option, -no-integrated-as) +KBUILD_CFLAGS += -no-integrated-as +KBUILD_AFLAGS += -no-integrated-as endif RETPOLINE_CFLAGS_GCC := -mindirect-branch=thunk-extern -mindirect-branch-register
--
2.7.4