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Groups > linux.kernel > #1602969 > unrolled thread
| Started by | Michael Davidson <md@google.com> |
|---|---|
| First post | 2017-03-17 02:20 +0100 |
| Last post | 2017-03-17 09:20 +0100 |
| Articles | 2 — 2 participants |
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[PATCH 0/7] LLVM: make x86_64 kernel build with clang. Michael Davidson <md@google.com> - 2017-03-17 02:20 +0100
Re: [PATCH 0/7] LLVM: make x86_64 kernel build with clang. Dmitry Vyukov <dvyukov@google.com> - 2017-03-17 09:20 +0100
| From | Michael Davidson <md@google.com> |
|---|---|
| Date | 2017-03-17 02:20 +0100 |
| Subject | [PATCH 0/7] LLVM: make x86_64 kernel build with clang. |
| Message-ID | <tlNWh-6eK-9@gated-at.bofh.it> |
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
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| From | Dmitry Vyukov <dvyukov@google.com> |
|---|---|
| Date | 2017-03-17 09:20 +0100 |
| Message-ID | <tlVh7-3rB-5@gated-at.bofh.it> |
| In reply to | #1602969 |
On Fri, Mar 17, 2017 at 1:15 AM, Michael Davidson <md@google.com> wrote: > 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. Thanks, Michael! This will help us a lot with KMSAN (uninit use detector) and code coverage. > 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 >
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