GDB 11 branching update (2021-05-24)

GDB 11 branching update (2021-05-24)

[Joel Brobecker]

Hello everyone,

Quick update on the GDB 11 branching; unfortunately, not a lot of
progress that I could see when I did the review; let me know if
I missed anything!

Fixed Since the Previous Update:
--------------------------------

  < none >

Added Since the Last Update:
----------------------------

  * [SimonM] <PR python/27841>
    Failed assertion: assigning convenience variable during inferior exit Python event
    https://sourceware.org/bugzilla/show_bug.cgi?id=27841

    patch v2: https://sourceware.org/pipermail/gdb-patches/2021-May/178716.html
    v2 approved, but waiting for copyright assignment process to be completed

  * [TomDV] <PR symtab/26327>
    GDB hangs in get_builder() due to recursive ancestor pointers
    https://sourceware.org/bugzilla/show_bug.cgi?id=26327

    There was a patch, but it caused some regressions, and thus
    it has been reverted, making us reopen this PR.

    One comment in the PR says:
    | The problem is not that we search ancestors, the problem is that
    | we allow ancestors to form a loop.  See detailed investigation at
    | <URL: https://bugzilla.opensuse.org/show_bug.cgi?id=1185800 >.  Your
    | fix looks more like a band-aid to me.

  * [MikeF] using gnulib in sim (patches pending)

  * [LuisM] AArch64 MTE issues
       - ???
       - core file support

  * [RainerO] <PR binutils/27666>
    ar doesn't create indices on Solaris/sparcv9
    https://sourceware.org/bugzilla/show_bug.cgi?id=27666

    Causes large number of tests to fail in gdb's testsuite.

    Patch has been proposed by NickC, to be tested by RainerO
    (uploaded to bugzilla). Worse case scenario, we can branch
    and then revert the binutils patch that caused the issue.

Other Ongoing Items:
--------------------

  * [Sergey with Simon as reviewer] <PR tdep/26633>
    Add Z80 CPU support
    https://sourceware.org/bugzilla/show_bug.cgi?id=26633

    Patch submitted at:
    https://sourceware.org/pipermail/gdb-patches/2020-September/172083.html

  * [AndrewB/Simon] <PR gdb/26819>
    Bug 26819 - RISC-V: internal-error: int finish_step_over(execution_control_state*): Assertion
    https://sourceware.org/bugzilla/show_bug.cgi?id=26819

    I think the situation has been improved thanks to a couple of
    patches, but the user still has some scenarios where the issue
    happens.

  * [Simon] <PR gdb/26868>
    Follow-up on x86-64 stub submission
    https://sourceware.org/bugzilla/show_bug.cgi?id=26868

    This is the submission in question:
    https://sourceware.org/pipermail/gdb-patches/2020-November/173182.html

    For me, although I am not a lawyer, I don't think we can accept
    the contribution without the author signing a copyright assignment
    form.

  * [Simon/Kevin] <PR gdb/27526>
    Attaching to threaded process on glibc 2.33: libthread_db fails to initialize with "generic error"
    https://sourceware.org/bugzilla/show_bug.cgi?id=27526

    Patch v2 at:
    https://sourceware.org/pipermail/gdb-patches/2021-May/178485.html

Not Critical, but Requested:
----------------------------

  < none :) >

Thank you!
-- 
Joel