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  • abel.d.o + gcc-12.x

    From Mathieu Malaterre@21:1/5 to All on Mon Sep 5 09:00:01 2022
    Dear Debian arm porters,

    I have two requests:

    - Could someone please check the status of abel.d.o ? (*)
    - One of gcc dev asked me to verify the status of a bug in gcc-12.x
    branch. Are there any pre-build version of GCC 12.x package for
    Debian/arm ? (**)

    Thanks much,

    (*) I cannot post to '[email protected]', I get a '550 host
    209.85.221.48 is listed in safe.dnsbl.sorbs.net (127.0.0.6);'
    (**) https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1018953

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  • From John Paul Adrian Glaubitz@21:1/5 to All on Mon Sep 5 09:20:02 2022
    On Sep 5, 2022, at 8:54 AM, Mathieu Malaterre <[email protected]> wrote:

    I have two requests:

    - Could someone please check the status of abel.d.o ? (*)
    - One of gcc dev asked me to verify the status of a bug in gcc-12.x
    branch. Are there any pre-build version of GCC 12.x package for
    Debian/arm ? (**)

    If you have a Debian DSA account, you can just create a armel schroot session for sid.

    In sid, gcc-12 is now the default compiler.

    Adrian

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  • From Mathieu Malaterre@21:1/5 to [email protected] on Mon Sep 5 09:20:02 2022
    Hi Adrian,

    On Mon, Sep 5, 2022 at 9:11 AM John Paul Adrian Glaubitz <[email protected]> wrote:



    On Sep 5, 2022, at 8:54 AM, Mathieu Malaterre <[email protected]> wrote:

    I have two requests:

    - Could someone please check the status of abel.d.o ? (*)
    - One of gcc dev asked me to verify the status of a bug in gcc-12.x
    branch. Are there any pre-build version of GCC 12.x package for
    Debian/arm ? (**)

    If you have a Debian DSA account, you can just create a armel schroot session for sid.

    In sid, gcc-12 is now the default compiler.

    I should have said: "I need a GCC 12.3" compiler (on amdahl.d.o).

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  • From Wookey@21:1/5 to Mathieu Malaterre on Mon Sep 5 12:10:01 2022
    On 2022-09-05 08:53 +0200, Mathieu Malaterre wrote:
    Dear Debian arm porters,

    I have two requests:

    - Could someone please check the status of abel.d.o ? (*)

    It does not not boot any more after a kernel upgrade. This happened whilst I was
    on holiday so it's taken a while to get to it. It is now on my desk being looked at.

    - One of gcc dev asked me to verify the status of a bug in gcc-12.x
    branch. Are there any pre-build version of GCC 12.x package for
    Debian/arm ? (**)

    Yes:
    12.2.0 is in the archive:
    https://tracker.debian.org/pkg/gcc-12 https://buildd.debian.org/status/package.php?p=gcc-12 https://deb.debian.org/debian/pool/main/g/gcc-12/

    Wookey
    --
    Principal hats: Debian, Wookware, ARM
    http://wookware.org/

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  • From Jeffrey Walton@21:1/5 to [email protected] on Mon Sep 5 11:20:01 2022
    On Mon, Sep 5, 2022 at 2:54 AM Mathieu Malaterre <[email protected]> wrote:

    Dear Debian arm porters,

    I have two requests:

    - Could someone please check the status of abel.d.o ? (*)
    - One of gcc dev asked me to verify the status of a bug in gcc-12.x
    branch. Are there any pre-build version of GCC 12.x package for
    Debian/arm ? (**)

    Thanks much,

    (*) I cannot post to '[email protected]', I get a '550 host
    209.85.221.48 is listed in safe.dnsbl.sorbs.net (127.0.0.6);'
    (**) https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1018953

    From the GCC bug report:

    I can trigger an assertion in highway unit test suite
    on armhf when using -O2 (does not happen at -O0).

    Symptoms:

    % tests/mul_test "--gtest_filter=HwyMulTestGroup/HwyMulTest.TestAllMulAdd/Emu128" "--gtest_also_run_disabled_tests"
    Running main() from ./googletest/src/gtest_main.cc

    We encountered a similar bug under GCC 12. We are also a C++ project.
    Things were Ok at -O1, but segfaulted at -O2 or higher. We found GCC
    was removing live code. -fsanitize=unreachable helped uncover the
    problem. [1]

    We needed to add -fno-devirtualize to our CXXFLAGS. It is just a
    workaround at the moment. We hope the GCC flks will get it sorted out
    soon.

    Jeff

    [1] https://github.com/weidai11/cryptopp/issues/1141

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