| Message ID | 20230201192509.4124319-1-ndesaulniers@google.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Documentation/llvm: add Chimera Linux, Google and Meta datacenters | expand |
On 2/1/23 11:25 AM, Nick Desaulniers wrote: > Chimera Linux is a Linux distribution from 2021 that builds its kernels > with Clang. > > Google transitioned its data center fleet to run Clang built kernels in > 2021, and Meta did so as well in 2022. Meta talked about this at LPC > 2022 at a talk titled Kernel Live Patching at Scale. > > These were important milestones for building the kernel with Clang. > Making note of them helps improve confidence in the project. > > Signed-off-by: Yonghong Song <yhs@fb.com> > Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> > --- > Cc: Daniel Kolesa <q66@chimera-linux.org> > Cc: Chris Mason <clm@meta.com> > --- > Documentation/kbuild/llvm.rst | 15 +++++++++------ > 1 file changed, 9 insertions(+), 6 deletions(-) > > diff --git a/Documentation/kbuild/llvm.rst b/Documentation/kbuild/llvm.rst > index 6b2bac8e9ce0..6a37ab903e45 100644 > --- a/Documentation/kbuild/llvm.rst > +++ b/Documentation/kbuild/llvm.rst > @@ -15,12 +15,15 @@ such as GCC and binutils. Ongoing work has allowed for `Clang > <https://clang.llvm.org/>`_ and `LLVM <https://llvm.org/>`_ utilities to be > used as viable substitutes. Distributions such as `Android > <https://www.android.com/>`_, `ChromeOS > -<https://www.chromium.org/chromium-os>`_, and `OpenMandriva > -<https://www.openmandriva.org/>`_ use Clang built kernels. `LLVM is a > -collection of toolchain components implemented in terms of C++ objects > -<https://www.aosabook.org/en/llvm.html>`_. Clang is a front-end to LLVM that > -supports C and the GNU C extensions required by the kernel, and is pronounced > -"klang," not "see-lang." > +https://www.chromium.org/chromium-os>`_, `OpenMandriva > +<https://www.openmandriva.org/>`_, and `Chimera Linux > +<https://chimera-linux.org/>`_ use Clang built kernels. Google's and Meta's > +datacenter fleets also run kernels built with Clang. > + > +`LLVM is a collection of toolchain components implemented in terms of C++ > +objects <https://www.aosabook.org/en/llvm.html>`_. Clang is a front-end to LLVM > +that supports C and the GNU C extensions required by the kernel, and is > +pronounced "klang," not "see-lang." :) yes it is klang. Looks fine. Reviewed-by: Tom Rix <trix@redhat.com> > > Clang > -----
On Wed, Feb 01, 2023 at 11:25:09AM -0800, Nick Desaulniers wrote: > Chimera Linux is a Linux distribution from 2021 that builds its kernels > with Clang. > > Google transitioned its data center fleet to run Clang built kernels in > 2021, and Meta did so as well in 2022. Meta talked about this at LPC > 2022 at a talk titled Kernel Live Patching at Scale. > > These were important milestones for building the kernel with Clang. > Making note of them helps improve confidence in the project. > > Signed-off-by: Yonghong Song <yhs@fb.com> > Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Reading a docs diff makes my head hurt :) Reviewed-by: Nathan Chancellor <nathan@kernel.org> One note, the signoff plus authorship looks odd to me. Perhaps this should be using Co-developed-by: ? https://kernel.org/doc/html/latest/process/submitting-patches.html#when-to-use-acked-by-cc-and-co-developed-by Documentation/process/submitting-patches.rst, "When to use Acked-by:, Cc:, and Co-developed-by:" > --- > Cc: Daniel Kolesa <q66@chimera-linux.org> > Cc: Chris Mason <clm@meta.com> > --- > Documentation/kbuild/llvm.rst | 15 +++++++++------ > 1 file changed, 9 insertions(+), 6 deletions(-) > > diff --git a/Documentation/kbuild/llvm.rst b/Documentation/kbuild/llvm.rst > index 6b2bac8e9ce0..6a37ab903e45 100644 > --- a/Documentation/kbuild/llvm.rst > +++ b/Documentation/kbuild/llvm.rst > @@ -15,12 +15,15 @@ such as GCC and binutils. Ongoing work has allowed for `Clang > <https://clang.llvm.org/>`_ and `LLVM <https://llvm.org/>`_ utilities to be > used as viable substitutes. Distributions such as `Android > <https://www.android.com/>`_, `ChromeOS > -<https://www.chromium.org/chromium-os>`_, and `OpenMandriva > -<https://www.openmandriva.org/>`_ use Clang built kernels. `LLVM is a > -collection of toolchain components implemented in terms of C++ objects > -<https://www.aosabook.org/en/llvm.html>`_. Clang is a front-end to LLVM that > -supports C and the GNU C extensions required by the kernel, and is pronounced > -"klang," not "see-lang." > +https://www.chromium.org/chromium-os>`_, `OpenMandriva > +<https://www.openmandriva.org/>`_, and `Chimera Linux > +<https://chimera-linux.org/>`_ use Clang built kernels. Google's and Meta's > +datacenter fleets also run kernels built with Clang. > + > +`LLVM is a collection of toolchain components implemented in terms of C++ > +objects <https://www.aosabook.org/en/llvm.html>`_. Clang is a front-end to LLVM > +that supports C and the GNU C extensions required by the kernel, and is > +pronounced "klang," not "see-lang." > > Clang > ----- > -- > 2.39.1.456.gfc5497dd1b-goog >
On Wed, Feb 1, 2023 at 8:47 PM Nick Desaulniers <ndesaulniers@google.com> wrote: > > Chimera Linux is a Linux distribution from 2021 that builds its kernels > with Clang. > > Google transitioned its data center fleet to run Clang built kernels in > 2021, and Meta did so as well in 2022. Meta talked about this at LPC > 2022 at a talk titled Kernel Live Patching at Scale. > > These were important milestones for building the kernel with Clang. > Making note of them helps improve confidence in the project. > > Signed-off-by: Yonghong Song <yhs@fb.com> > Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> > --- > Cc: Daniel Kolesa <q66@chimera-linux.org> > Cc: Chris Mason <clm@meta.com> > --- > Documentation/kbuild/llvm.rst | 15 +++++++++------ > 1 file changed, 9 insertions(+), 6 deletions(-) > > diff --git a/Documentation/kbuild/llvm.rst b/Documentation/kbuild/llvm.rst > index 6b2bac8e9ce0..6a37ab903e45 100644 > --- a/Documentation/kbuild/llvm.rst > +++ b/Documentation/kbuild/llvm.rst > @@ -15,12 +15,15 @@ such as GCC and binutils. Ongoing work has allowed for `Clang > <https://clang.llvm.org/>`_ and `LLVM <https://llvm.org/>`_ utilities to be > used as viable substitutes. Distributions such as `Android > <https://www.android.com/>`_, `ChromeOS > -<https://www.chromium.org/chromium-os>`_, and `OpenMandriva > -<https://www.openmandriva.org/>`_ use Clang built kernels. `LLVM is a > -collection of toolchain components implemented in terms of C++ objects > -<https://www.aosabook.org/en/llvm.html>`_. Clang is a front-end to LLVM that > -supports C and the GNU C extensions required by the kernel, and is pronounced > -"klang," not "see-lang." > +https://www.chromium.org/chromium-os>`_, `OpenMandriva > +<https://www.openmandriva.org/>`_, and `Chimera Linux > +<https://chimera-linux.org/>`_ use Clang built kernels. Google's and Meta's > +datacenter fleets also run kernels built with Clang. > + > +`LLVM is a collection of toolchain components implemented in terms of C++ > +objects <https://www.aosabook.org/en/llvm.html>`_. Clang is a front-end to LLVM > +that supports C and the GNU C extensions required by the kernel, and is > +pronounced "klang," not "see-lang." > Nick thanks for the patch! My ex-colleague Bernd Helmle corrected me - it's not "See-Lang" it's "Klang" and encouraged me to work on ClangBuiltLinux. "Klang" means German tone, sound, etc. like vocal tone. That "sounds" nice (shrillness): clangor (AE) / clangour (BE) - schriller Klang (DE) For Bernd: Reviewed-by: Sedat Dilek <sedat.dilek@gmail.com> BR, -Sedat- [1] https://dict.leo.org/englisch-deutsch/Klang > Clang > ----- > -- > 2.39.1.456.gfc5497dd1b-goog >
Hi Nick,
I love your patch! Perhaps something to improve:
[auto build test WARNING on masahiroy-kbuild/for-next]
[also build test WARNING on masahiroy-kbuild/fixes linus/master v6.2-rc6 next-20230202]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Nick-Desaulniers/Documentation-llvm-add-Chimera-Linux-Google-and-Meta-datacenters/20230202-032729
base: https://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild.git for-next
patch link: https://lore.kernel.org/r/20230201192509.4124319-1-ndesaulniers%40google.com
patch subject: [PATCH] Documentation/llvm: add Chimera Linux, Google and Meta datacenters
reproduce:
# https://github.com/intel-lab-lkp/linux/commit/fb73005aa3c6a4052e30f0f0dc2c608bafd8acce
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Nick-Desaulniers/Documentation-llvm-add-Chimera-Linux-Google-and-Meta-datacenters/20230202-032729
git checkout fb73005aa3c6a4052e30f0f0dc2c608bafd8acce
make menuconfig
# enable CONFIG_COMPILE_TEST, CONFIG_WARN_MISSING_DOCUMENTS, CONFIG_WARN_ABI_ERRORS
make htmldocs
If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> Documentation/kbuild/llvm.rst:13: WARNING: Unknown target name: "chromeos https://www.chromium.org/chromium-os>".
vim +13 Documentation/kbuild/llvm.rst
fcf1b6a35c16ac5 Nick Desaulniers 2020-02-26 12
fcf1b6a35c16ac5 Nick Desaulniers 2020-02-26 @13 The Linux kernel has always traditionally been compiled with GNU toolchains
fcf1b6a35c16ac5 Nick Desaulniers 2020-02-26 14 such as GCC and binutils. Ongoing work has allowed for `Clang
fcf1b6a35c16ac5 Nick Desaulniers 2020-02-26 15 <https://clang.llvm.org/>`_ and `LLVM <https://llvm.org/>`_ utilities to be
fcf1b6a35c16ac5 Nick Desaulniers 2020-02-26 16 used as viable substitutes. Distributions such as `Android
fcf1b6a35c16ac5 Nick Desaulniers 2020-02-26 17 <https://www.android.com/>`_, `ChromeOS
fb73005aa3c6a40 Nick Desaulniers 2023-02-01 18 https://www.chromium.org/chromium-os>`_, `OpenMandriva
fb73005aa3c6a40 Nick Desaulniers 2023-02-01 19 <https://www.openmandriva.org/>`_, and `Chimera Linux
fb73005aa3c6a40 Nick Desaulniers 2023-02-01 20 <https://chimera-linux.org/>`_ use Clang built kernels. Google's and Meta's
fb73005aa3c6a40 Nick Desaulniers 2023-02-01 21 datacenter fleets also run kernels built with Clang.
fb73005aa3c6a40 Nick Desaulniers 2023-02-01 22
diff --git a/Documentation/kbuild/llvm.rst b/Documentation/kbuild/llvm.rst index 6b2bac8e9ce0..6a37ab903e45 100644 --- a/Documentation/kbuild/llvm.rst +++ b/Documentation/kbuild/llvm.rst @@ -15,12 +15,15 @@ such as GCC and binutils. Ongoing work has allowed for `Clang <https://clang.llvm.org/>`_ and `LLVM <https://llvm.org/>`_ utilities to be used as viable substitutes. Distributions such as `Android <https://www.android.com/>`_, `ChromeOS -<https://www.chromium.org/chromium-os>`_, and `OpenMandriva -<https://www.openmandriva.org/>`_ use Clang built kernels. `LLVM is a -collection of toolchain components implemented in terms of C++ objects -<https://www.aosabook.org/en/llvm.html>`_. Clang is a front-end to LLVM that -supports C and the GNU C extensions required by the kernel, and is pronounced -"klang," not "see-lang." +https://www.chromium.org/chromium-os>`_, `OpenMandriva +<https://www.openmandriva.org/>`_, and `Chimera Linux +<https://chimera-linux.org/>`_ use Clang built kernels. Google's and Meta's +datacenter fleets also run kernels built with Clang. + +`LLVM is a collection of toolchain components implemented in terms of C++ +objects <https://www.aosabook.org/en/llvm.html>`_. Clang is a front-end to LLVM +that supports C and the GNU C extensions required by the kernel, and is +pronounced "klang," not "see-lang." Clang -----