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From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug gdb/31260] [gdb] ThreadSanitizer: data race
 /usr/include/c++/13/optional:286 in
 std::_Optional_payload_base<std::unique_ptr<dwz_file,
 std::default_delete<dwz_file> > >::_M_destroy()
Date: Fri, 08 Mar 2024 14:32:24 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D31260

--- Comment #6 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=3De9b738dfbdc5=
04589e1a365ce32981f4b23c22c3

commit e9b738dfbdc504589e1a365ce32981f4b23c22c3
Author: Tom Tromey <tom@tromey.com>
Date:   Thu Jan 25 06:48:22 2024 -0700

    Avoid race when reading dwz file

    PR gdb/31260 points out a race introduced by the background reading
    changes.  If a given objfile is re-opened when it is already being
    read, dwarf2_initialize_objfile will call dwarf2_read_dwz_file again,
    causing the 'dwz_file' to be reset.

    This patch fixes the problem by arranging to open the dwz just once:
    when the dwarf2_per_bfd object is created.

    Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=3D31260

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