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From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug gdb/31262] [gdb] ThreadSanitizer: data raceindex-cache.c:76 in
 index_cache::enable()
Date: Sat, 09 Mar 2024 00:27:41 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D31262

--- Comment #5 from Sourceware Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Tom Tromey <tromey@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=3Dbinutils-gdb.git;h=3Ded29a346be43=
9466ff2a5ce33e715e02c49fbdac

commit ed29a346be439466ff2a5ce33e715e02c49fbdac
Author: Tom Tromey <tom@tromey.com>
Date:   Sun Jan 28 09:14:04 2024 -0700

    Avoid race when writing to index cache

    The background DWARF reader changes introduced a race when writing to
    the index cache.  The problem here is that constructing the
    index_cache_store_context object should only happen on the main
    thread, to ensure that the various value captures do not race.

    This patch adds an assert to the construct to that effect, and then
    arranges for this object to be constructed by the cooked_index_worker
    constructor -- which is only invoked on the main thread.

    Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=3D31262

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