GDB 15.1 release update (2024-04-20)

GDB 15.1 release update (2024-04-20)

[Joel Brobecker]

Hi everyone,

Below is a quick overview of where we stand in terms of known issues.
Happy to report that we're making progress! Thanks to all those who
contributed to that. The main concern for me at this stage would be
testsuite/31312, where it's not clear that there is a solid solution
to be found... But there's some good brainstorming happening, so I am
hopeful.

At this state the schedule is follow:

  - Pre-release: As soon as all blocking issues are solved.
  - Release (15.1): Two weeks after pre-release.

As always, please let us know if there are other issues we should
fix before releasing.

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

  * [TomT] gdb/31264
    [gdb] ThreadSanitizer: data race format.c:132 in bfd_preserve_save
    https://sourceware.org/bugzilla/show_bug.cgi?id=31264

  * [TomT and/or SimonM] gdb/31331
    Wenum-constexpr-conversion should be fixed, soon treated as a hard error
    https://sourceware.org/bugzilla/show_bug.cgi?id=31331

    Actually, not really fixed, but I removed it from our list,
    as discussed on gdb-patches during the last update (and already
    mentioned before in one of the earlier updates).

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

  < none :) >

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

  * [<unassigned>] symtab/30520
    Slow lookup_symbol_in_objfile
    https://sourceware.org/bugzilla/show_bug.cgi?id=30520

        Feb patch series (v2, 2024-02-15):
        https://sourceware.org/pipermail/gdb-patches/2024-February/206442.html

        IIUC, there is an agreement between author and reviewer about
        the (small) required changes. But copyright assignment papers
        are still waiting to be signed.  (no change since Feb 15)

  * [TomT] gdb/31261
    [gdb] ThreadSanitizer: data race objfiles.c:648 in objfile_relocate1
    https://sourceware.org/bugzilla/show_bug.cgi?id=31261

        Patch series v2 (2024-04-16):
        https://sourceware.org/pipermail/gdb-patches/2024-April/208159.html

        Simpler series. Awaiting comments, but will otherwise check
        the series in if not.

  * [TomDV] symtab/31268
    gdb.base/unwind-on-each-insn-amd64.exp regression
    https://sourceware.org/bugzilla/show_bug.cgi?id=31268

    v5 patch series here (2024-04-09):
    https://sourceware.org/pipermail/gdb-patches/2024-April/207959.html

    Received a positive review from a contributor (Apr 10-11).

  * [CarlEL/ThiagoB] testsuite/31312
    attach-many-short-lived-threads gives inconsistent results (POWER 10)
    https://sourceware.org/bugzilla/show_bug.cgi?id=31312

        Looked like the discussions have reached a consensus of accepting
        this failure (2024-03-09), but there was a second questin that
        wasn't wasn't understood yet, so Carl tried to dig deeper.
        Meanwhile, Thiago indicated he's seeing the same kind of behavior
        on AArch64 Linux (sometimes), and now has some leads he is
        pursuing (go Thiago!)

        Thiago posted a patch series that fixes the problem, but
        with one known regression he hasn't had time to investigate:
        https://sourceware.org/pipermail/gdb-patches/2024-March/207467.html

        Pedro suggested an alternative approach to fix the problem,
        which Thiago tried, but unfortunately created another issue.
        Discussions are ongoing...

Not Blocking, But Keep An Eye On:
---------------------------------

  * [Thiago]
    various improvements to aarch64 MOPS (Memory Operations)

    Related to this enhancement, there is a gdb/testsuite PR
    to add watchpoint tests for those:
    https://sourceware.org/bugzilla/show_bug.cgi?id=31484



-- 
Joel