Message-ID: <CA+G9fYvmqz3nQ=Cgs=7J6vtRj=OhbNzgkLPmxxN+vOBTU=9zVA@mail.gmail.com>
Date:   Wed, 14 Jun 2023 19:43:45 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     Nathan Chancellor <nathan@...nel.org>
Cc:     clang-built-linux <llvm@...ts.linux.dev>,
        open list <linux-kernel@...r.kernel.org>,
        linux-stable <stable@...r.kernel.org>,
        lkft-triage@...ts.linaro.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Sasha Levin <sashal@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Anders Roxell <anders.roxell@...aro.org>,
        Daniel Díaz <daniel.diaz@...aro.org>,
        Dan Carpenter <dan.carpenter@...aro.org>
Subject: Re: clang: Powerpc: clang-nightly-maple_defconfig — FAIL

Hi Nathan,

On Tue, 13 Jun 2023 at 09:57, Naresh Kamboju <naresh.kamboju@...aro.org> wrote:
>
> Hi Nathan,
>
> On Tue, 13 Jun 2023 at 00:24, Nathan Chancellor <nathan@...nel.org> wrote:
> >
> > Hi Naresh,
> >
> > On Tue, Jun 13, 2023 at 12:10:30AM +0530, Naresh Kamboju wrote:
> > > [Please ignore if it is already reported]
> > >
> > > Following two builds failed on stable-rc 6.1.34-rc1.
> > >
> > >   - Powerpc: clang-nightly-maple_defconfig — FAIL
> > >   - Powerpc: clang-nightly-cell_defconfig — FAIL
> > >

> > As always, thanks for the report. This is an LLVM regression/change in
> > behavior caused by [1], which can break as-option and as-instr on
> > releases prior to commit d5c8d6e0fa61 ("kbuild: Update assembler calls
> > to use proper flags and language target"), as unsupported flags for the
> > current target ('-x') may be present (KBUILD_CFLAGS is used for these
> > tests instead of KBUILD_AFLAGS). Inside try-run, the macro behind
> > as-instr and as-option, I see
> >
> >   clang-17: error: unsupported option '-mno-prefixed' for target 'powerpc64le-linux-gnu'
> >   clang-17: error: unsupported option '-mno-pcrel' for target 'powerpc64le-linux-gnu'
> >   clang-17: error: unsupported option '-mno-altivec' for target 'powerpc64le-linux-gnu'
> >   clang-17: error: unsupported option '-mno-vsx' for target 'powerpc64le-linux-gnu'
> >   clang-17: error: unsupported option '-mno-mma' for target 'powerpc64le-linux-gnu'
> >   clang-17: error: unsupported option '-mno-spe' for target 'powerpc64le-linux-gnu'
> >
> > This has come up recently elsewhere in PowerPC, see
> > commit 2b694fc96fe3 ("powerpc/boot: Disable power10 features after
> > BOOTAFLAGS assignment"). While I think it is dubious that clang errors
> > on these flags for the assembler target, this is already fixed on the
> > Linux side by using KBUILD_AFLAGS for these make macros.
> >
> > I am preparing a series of d5c8d6e0fa61 and its dependencies for 6.1 but
> > I want to do sufficient build testing first, which is currently running
> > for me. Would you be able to point your matrix to [2] to make sure
> > everything works properly with both GCC and LLVM? It is a work in
> > progress as the second patch in the stack needs a proper commit message
> > but it is the diff I expect to ship so that it all that matters.
>
> We'll start building [2] with GCC and LLVM by using tuxplans and
> get back to you.

LKFT has been configured to run GCC and LLVM in total 205 builds
and all the builds have passed on your tree / branch [2]. You can find
the list of builds including kselftest, perf, rcutorture, kunit, kmemleak
and many more combinations and architectures.

I request you to review the list of builds results and test results on
projects page [3] [4]. I do not find any regressions compared with
mainline master as sanity testing.

Do you think LKFT should build your tree / branch often ?
We are happy to test anytime.

Thanks Daniel and Anders for your work.

build_names: that got tested and all have passed.

  - clang-16-allnoconfig
  - clang-16-at91_dt_defconfig
  - clang-16-axm55xx_defconfig
  - clang-16-bcm2835_defconfig
  - clang-16-cell_defconfig
  - clang-16-clps711x_defconfig
  - clang-16-davinci_all_defconfig
  - clang-16-defconfig
  - clang-16-defconfig-40bc7ee5
  - clang-16-exynos_defconfig
  - clang-16-footbridge_defconfig
  - clang-16-imx_v4_v5_defconfig
  - clang-16-imx_v6_v7_defconfig
  - clang-16-integrator_defconfig
  - clang-16-keystone_defconfig
  - clang-16-lkftconfig
  - clang-16-lkftconfig-compat
  - clang-16-lkftconfig-kcsan
  - clang-16-lkftconfig-no-kselftest-frag
  - clang-16-lpc32xx_defconfig
  - clang-16-maple_defconfig
  - clang-16-mpc83xx_defconfig
  - clang-16-multi_v5_defconfig
  - clang-16-multi_v5_defconfig-65236a87
  - clang-16-mxs_defconfig
  - clang-16-nhk8815_defconfig
  - clang-16-omap1_defconfig
  - clang-16-omap2plus_defconfig
  - clang-16-orion5x_defconfig
  - clang-16-ppc64e_defconfig
  - clang-16-pxa910_defconfig
  - clang-16-s3c6400_defconfig
  - clang-16-s5pv210_defconfig
  - clang-16-sama5_defconfig
  - clang-16-shmobile_defconfig
  - clang-16-tinyconfig
  - clang-16-tqm8xx_defconfig
  - clang-16-u8500_defconfig
  - clang-16-vexpress_defconfig
  - clang-16-x86_64_defconfig
  - clang-nightly-allnoconfig
  - clang-nightly-at91_dt_defconfig
  - clang-nightly-axm55xx_defconfig
  - clang-nightly-bcm2835_defconfig
  - clang-nightly-cell_defconfig
  - clang-nightly-clps711x_defconfig
  - clang-nightly-davinci_all_defconfig
  - clang-nightly-defconfig
  - clang-nightly-defconfig-40bc7ee5
  - clang-nightly-exynos_defconfig
  - clang-nightly-footbridge_defconfig
  - clang-nightly-imx_v4_v5_defconfig
  - clang-nightly-imx_v6_v7_defconfig
  - clang-nightly-integrator_defconfig
  - clang-nightly-keystone_defconfig
  - clang-nightly-lkftconfig
  - clang-nightly-lpc32xx_defconfig
  - clang-nightly-maple_defconfig
  - clang-nightly-mpc83xx_defconfig
  - clang-nightly-multi_v5_defconfig
  - clang-nightly-multi_v5_defconfig-65236a87
  - clang-nightly-mxs_defconfig
  - clang-nightly-nhk8815_defconfig
  - clang-nightly-omap1_defconfig
  - clang-nightly-omap2plus_defconfig
  - clang-nightly-orion5x_defconfig
  - clang-nightly-ppc64e_defconfig
  - clang-nightly-pxa910_defconfig
  - clang-nightly-s3c6400_defconfig
  - clang-nightly-s5pv210_defconfig
  - clang-nightly-sama5_defconfig
  - clang-nightly-shmobile_defconfig
  - clang-nightly-tinyconfig
  - clang-nightly-tqm8xx_defconfig
  - clang-nightly-u8500_defconfig
  - clang-nightly-vexpress_defconfig
  - clang-nightly-x86_64_defconfig
  - gcc-11-allnoconfig
  - gcc-11-defconfig
  - gcc-11-dreamcast_defconfig
  - gcc-11-lkftconfig
  - gcc-11-lkftconfig-perf
  - gcc-11-microdev_defconfig
  - gcc-11-shx3_defconfig
  - gcc-11-tinyconfig
  - gcc-12-allnoconfig
  - gcc-12-ar7_defconfig
  - gcc-12-at91_dt_defconfig
  - gcc-12-ath79_defconfig
  - gcc-12-axm55xx_defconfig
  - gcc-12-bcm2835_defconfig
  - gcc-12-bcm47xx_defconfig
  - gcc-12-bcm63xx_defconfig
  - gcc-12-cavium_octeon_defconfig
  - gcc-12-cell_defconfig
  - gcc-12-clps711x_defconfig
  - gcc-12-davinci_all_defconfig
  - gcc-12-defconfig
  - gcc-12-defconfig-40bc7ee5
  - gcc-12-exynos_defconfig
  - gcc-12-footbridge_defconfig
  - gcc-12-imx_v4_v5_defconfig
  - gcc-12-imx_v6_v7_defconfig
  - gcc-12-integrator_defconfig
  - gcc-12-ixp4xx_defconfig
  - gcc-12-keystone_defconfig
  - gcc-12-lkftconfig
  - gcc-12-lkftconfig-64k_page_size
  - gcc-12-lkftconfig-armv8_features
  - gcc-12-lkftconfig-compat
  - gcc-12-lkftconfig-debug
  - gcc-12-lkftconfig-debug-kmemleak
  - gcc-12-lkftconfig-devicetree
  - gcc-12-lkftconfig-kasan
  - gcc-12-lkftconfig-kselftest
  - gcc-12-lkftconfig-kunit
  - gcc-12-lkftconfig-libgpiod
  - gcc-12-lkftconfig-no-kselftest-frag
  - gcc-12-lkftconfig-perf
  - gcc-12-lkftconfig-rcutorture
  - gcc-12-lpc32xx_defconfig
  - gcc-12-malta_defconfig
  - gcc-12-maple_defconfig
  - gcc-12-mpc83xx_defconfig
  - gcc-12-multi_v5_defconfig
  - gcc-12-multi_v5_defconfig-65236a87
  - gcc-12-mxs_defconfig
  - gcc-12-nhk8815_defconfig
  - gcc-12-omap1_defconfig
  - gcc-12-omap2plus_defconfig
  - gcc-12-orion5x_defconfig
  - gcc-12-ppc64e_defconfig
  - gcc-12-ppc6xx_defconfig
  - gcc-12-pxa910_defconfig
  - gcc-12-rt305x_defconfig
  - gcc-12-s3c6400_defconfig
  - gcc-12-s5pv210_defconfig
  - gcc-12-sama5_defconfig
  - gcc-12-shmobile_defconfig
  - gcc-12-tinyconfig
  - gcc-12-tqm8xx_defconfig
  - gcc-12-u8500_defconfig
  - gcc-12-vexpress_defconfig
  - gcc-8-allnoconfig
  - gcc-8-ar7_defconfig
  - gcc-8-at91_dt_defconfig
  - gcc-8-ath79_defconfig
  - gcc-8-axm55xx_defconfig
  - gcc-8-bcm2835_defconfig
  - gcc-8-bcm47xx_defconfig
  - gcc-8-bcm63xx_defconfig
  - gcc-8-cavium_octeon_defconfig
  - gcc-8-cell_defconfig
  - gcc-8-clps711x_defconfig
  - gcc-8-davinci_all_defconfig
  - gcc-8-defconfig
  - gcc-8-defconfig-40bc7ee5
  - gcc-8-defconfig-fe40093d
  - gcc-8-dreamcast_defconfig
  - gcc-8-exynos_defconfig
  - gcc-8-footbridge_defconfig
  - gcc-8-i386_defconfig
  - gcc-8-imx_v4_v5_defconfig
  - gcc-8-imx_v6_v7_defconfig
  - gcc-8-integrator_defconfig
  - gcc-8-ixp4xx_defconfig
  - gcc-8-keystone_defconfig
  - gcc-8-lpc32xx_defconfig
  - gcc-8-malta_defconfig
  - gcc-8-maple_defconfig
  - gcc-8-microdev_defconfig
  - gcc-8-mpc83xx_defconfig
  - gcc-8-multi_v5_defconfig
  - gcc-8-mxs_defconfig
  - gcc-8-nhk8815_defconfig
  - gcc-8-omap1_defconfig
  - gcc-8-omap2plus_defconfig
  - gcc-8-orion5x_defconfig
  - gcc-8-ppc64e_defconfig
  - gcc-8-ppc6xx_defconfig
  - gcc-8-pxa910_defconfig
  - gcc-8-rt305x_defconfig
  - gcc-8-s3c6400_defconfig
  - gcc-8-s5pv210_defconfig
  - gcc-8-sama5_defconfig
  - gcc-8-shmobile_defconfig
  - gcc-8-shx3_defconfig
  - gcc-8-tinyconfig
  - gcc-8-tqm8xx_defconfig
  - gcc-8-u8500_defconfig
  - gcc-8-vexpress_defconfig
  - gcc-8-x86_64_defconfig
  - gcc-9-allnoconfig
  - gcc-9-axs103_defconfig
  - gcc-9-defconfig
  - gcc-9-tinyconfig
  - gcc-9-vdk_hs38_smp_defconfig
  - rv32-clang-16-allnoconfig
  - rv32-clang-16-defconfig
  - rv32-clang-16-lkftconfig
  - rv32-clang-16-tinyconfig
  - rv32-clang-nightly-allnoconfig
  - rv32-clang-nightly-defconfig
  - rv32-clang-nightly-tinyconfig
  - rv32-gcc-11-lkftconfig


> > [1]: https://github.com/llvm/llvm-project/commit/5548843d692a92a7840f14002debc3cebcb3cdc3
> > [2]: https://git.kernel.org/pub/scm/linux/kernel/git/nathan/linux.git/log/?h=wip/b4/6-1-asssembler-target-llvm-17

[3] https://qa-reports.linaro.org/~anders.roxell/natan-6-1-asssembler-target-llvm-17/build/v6.1-6642-gb29a8d48035a/metadata/
[4] https://qa-reports.linaro.org/~anders.roxell/natan-6-1-asssembler-target-llvm-17/build/v6.1-6642-gb29a8d48035a/


> > Cheers,
> > Nathan


- Naresh

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