GDB 15.1 release update (2024-04-06)

GDB 15.1 release update (2024-04-06)

[Joel Brobecker]

Hi everyone,

More progress this week :-).

As a reminder, our now-pretty-certainly-optimistic target dates:

  - Pre-release:    13-14 April 2024
  - Release (15.1): 27-28 April 2024

Below is a quick overview of where we stand in terms of known issues.
Thanks once more to everyone for creating PRs, as this helps
tremendously with tracking!

Please do let us know if there are other issues you think should be
fixed in GDB 15.

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

  * [TomT] rust/31517
    Rust upstream GDB tests regressions with GDB 15 (regression)
    https://sourceware.org/bugzilla/show_bug.cgi?id=31517

  * [TomT] tui/31522
    TUI misses highlight after run to main
    https://sourceware.org/bugzilla/show_bug.cgi?id=31522

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

        (no change since Feb 15)

        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.

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

        Fix race in DWARF reader (2024-02-17):
        https://sourceware.org/pipermail/gdb-patches/2024-February/206633.html
        (Tom sent another email 2024-04-03 sharing more of his thoughts,
        and also saying he's appreciate insights if we have some)

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

        New binutils patch series (2024-03-24):
        https://sourceware.org/pipermail/binutils/2024-March/133155.html

  * [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.
        To be investigated further.

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

  * [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

        Last update was 2024-02-13.
        Marked as targeting 15.1, but not sure this one is blocking
        for 15.1...

  * [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

Thank you all,
-- 
Joel