From: Masahiro Yamada <yamada.masahiro@socionext.com>
To: linux-kbuild@vger.kernel.org
Cc: Nick Desaulniers <ndesaulniers@google.com>,
Stefan Agner <stefan@agner.ch>,
Matthias Kaehlcke <mka@chromium.org>,
Joel Stanley <joel@jms.id.au>,
linuxppc-dev@lists.ozlabs.org,
Michael Ellerman <mpe@ellerman.id.au>,
Masahiro Yamada <yamada.masahiro@socionext.com>,
Michal Marek <michal.lkml@markovi.net>,
linux-kernel@vger.kernel.org
Subject: [PATCH v2 1/2] kbuild: add -no-integrated-as Clang option unconditionally
Date: Tue, 6 Nov 2018 12:04:54 +0900 [thread overview]
Message-ID: <1541473495-25262-1-git-send-email-yamada.masahiro@socionext.com> (raw)
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 <yamada.masahiro@socionext.com>
---
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
next reply other threads:[~2018-11-06 3:06 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-06 3:04 Masahiro Yamada [this message]
2018-11-06 3:04 ` [PATCH v2 2/2] kbuild: consolidate Clang compiler flags Masahiro Yamada
2018-11-09 18:29 ` Nick Desaulniers
2018-11-09 18:34 ` Greg Hackmann
2018-11-11 14:03 ` Masahiro Yamada
2018-11-12 1:05 ` Michael Ellerman
2018-11-12 3:28 ` Masahiro Yamada
2018-11-12 4:22 ` Joel Stanley
2018-11-13 23:25 ` Masahiro Yamada
2018-11-09 18:08 ` [PATCH v2 1/2] kbuild: add -no-integrated-as Clang option unconditionally Nick Desaulniers
2018-11-13 23:24 ` Masahiro Yamada
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