| From: |
| Michael Davidson <md-AT-google.com> |
| To: |
| Michal Marek <mmarek-AT-suse.com>, Thomas Gleixner <tglx-AT-linutronix.de>, Ingo Molnar <mingo-AT-redhat.com>, "H. Peter Anvin" <hpa-AT-zytor.com>, Herbert Xu <herbert-AT-gondor.apana.org.au>, "David S. Miller" <davem-AT-davemloft.net>, Shaohua Li <shli-AT-kernel.org> |
| Subject: |
| [PATCH 0/7] LLVM: make x86_64 kernel build with clang. |
| Date: |
| Thu, 16 Mar 2017 17:15:13 -0700 |
| Message-ID: |
| <20170317001520.85223-1-md@google.com> |
| Cc: |
| Alexander Potapenko <glider-AT-google.com>, Dmitry Vyukov <dvyukov-AT-google.com>, Matthias Kaehlcke <mka-AT-chromium.org>, x86-AT-kernel.org, linux-kbuild-AT-vger.kernel.org, linux-kernel-AT-vger.kernel.org, linux-crypto-AT-vger.kernel.org, linux-raid-AT-vger.kernel.org, Michael Davidson <md-AT-google.com> |
This patch set is sufficient to get the x86_64 kernel to build
and boot correctly with clang-3.8 or greater.
The resulting build still has about 300 warnings, very few of
which appear to be significant. Most of them should be fixable
with some minor code refactoring although a few of them, such
as the complaints about implict conversions between enumerated
types may be candidates for just being disabled.
Michael Davidson (7):
Makefile, LLVM: add -no-integrated-as to KBUILD_[AC]FLAGS
Makefile, x86, LLVM: disable unsupported optimization flags
x86, LLVM: suppress clang warnings about unaligned accesses
x86, boot, LLVM: #undef memcpy etc in string.c
x86, boot, LLVM: Use regparm=0 for memcpy and memset
md/raid10, LLVM: get rid of variable length array
crypto, x86, LLVM: aesni - fix token pasting
Makefile | 4 ++++
arch/x86/Makefile | 7 +++++++
arch/x86/boot/copy.S | 15 +++++++++++++--
arch/x86/boot/string.c | 9 +++++++++
arch/x86/boot/string.h | 13 +++++++++++++
arch/x86/crypto/aes_ctrby8_avx-x86_64.S | 7 ++-----
drivers/md/raid10.c | 9 ++++-----
7 files changed, 52 insertions(+), 12 deletions(-)
--
2.12.0.367.g23dc2f6d3c-goog
