Re: [OE-core] [PATCH v3 1/7] clang/llvm: Upgrade to 22.x major release

Khem Raj
2026-03-27T18:00:58Z

[-- Attachment #1: Type: text/plain, Size: 2827 bytes --]

On Fri, Mar 27, 2026 at 3:42 AM Mathieu Dubois-Briand <
mathieu.dubois-briand@bootlin.com> wrote:

> On Thu Mar 26, 2026 at 4:16 PM CET, Khem Raj via lists.openembedded.org
> wrote:
> > From: Khem Raj <raj.khem@gmail.com>
> >
> > Includes support for new Intel (Wildcat Lake, Nova Lake with APX and
> AVX10.2)
> > Arm (C1 Nano, Pro, Premium, Ultra) processors. It also features
> performance
> > optimizations for AMD Zen 4 and Zen 5 architectures.
> >
> > Integrated Distributed ThinLTO is more mature, with enhancements
> > like cache support for incremental builds and robust handling of
> temporary artifacts.
> >
> > LLDB added first-class WebAssembly debugging support, including
> breakpoints and variable inspection.
> >
> > Support for Google Native Client (NaCl) is dropped in this release.
> >
> > Detailed ChangeLog [1]
> >
> > [1] https://releases.llvm.org/22.1.0/docs/ReleaseNotes.html
> >
> > Signed-off-by: Khem Raj <raj.khem@gmail.com>
> > ---
>
> Hi Khem,
>
> This looks better, but we still have one issue:
>
> ERROR: clang-22.1.2-r0 do_compile: Execution of
> '/srv/pokybuild/yocto-worker/qemux86-world/build/build/tmp/work/x86-64-v3-poky-linux/clang/22.1.2/temp/run.do_compile.573061'
> failed with exit code 1
> ...
> Log data follows:
> | DEBUG: Executing shell function do_compile
> | NOTE: VERBOSE=1 cmake --build
> /srv/pokybuild/yocto-worker/qemux86-world/build/build/tmp/work/x86-64-v3-poky-linux/clang/22.1.2/build
> --target all --
> | Change Dir:
> '/srv/pokybuild/yocto-worker/qemux86-world/build/build/tmp/work/x86-64-v3-poky-linux/clang/22.1.2/build'
> |
> | Run Build Command(s): ninja -v -j 16 all
> | ninja: error:
> '/srv/pokybuild/yocto-worker/qemux86-world/build/build/tmp/work-shared/llvm-project-source-22.1.2-r0/sources/llvm-project-22.1.2.src/clang/tools/scan-build-py/lib64/libscanbuild/__init__.py',
> needed by 'lib64/libscanbuild/__init__.py', missing and no known rule to
> make it
> |
> | WARNING: exit code 1 from a shell command.
> NOTE: recipe clang-22.1.2-r0: task do_compile: Failed
>
> https://autobuilder.yoctoproject.org/valkyrie/#/builders/59/builds/3485
>
>
This is caught with x86_64 because libdir is lib64 in multilib mode. The
issue was in the clangscan patch where it was
changing rules to look for sourcefiles also in mulilib libdir. I have fixed
it and updated the patchset here in a branch on top of master

https://git.openembedded.org/openembedded-core-contrib/log/?h=kraj/clang-22

my local builds are seeming ok. I have also started an AB build here, its
still running

https://autobuilder.yoctoproject.org/valkyrie/#/builders/59/builds/3492

> Thanks,
> Mathieu
>
> --
> Mathieu Dubois-Briand, Bootlin
> Embedded Linux and Kernel engineering
> https://bootlin.com
>
>

[-- Attachment #2: Type: text/html, Size: 4245 bytes --]