From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
 id 13543388EC2E; Fri, 10 Jun 2022 14:24:41 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 13543388EC2E
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/105880] eh_globals_init destructor not setting
 _M_init to false
Date: Fri, 10 Jun 2022 14:24:40 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: libstdc++
X-Bugzilla-Version: 12.1.1
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: cvs-commit at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: redi at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-105880-4-wb73sUeQzv@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-105880-4@http.gcc.gnu.org/bugzilla/>
References: <bug-105880-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: gcc-bugs@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-bugs mailing list <gcc-bugs.gcc.gnu.org>
List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-request@gcc.gnu.org?subject=help>
List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Fri, 10 Jun 2022 14:24:41 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105880

--- Comment #12 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jonathan Wakely <redi@gcc.gnu.org>:

https://gcc.gnu.org/g:1e65f2ed99024f23c56f7b6a961898bcaa882a92

commit r13-1039-g1e65f2ed99024f23c56f7b6a961898bcaa882a92
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Wed Jun 8 10:43:57 2022 +0100

    libstdc++: Fix lifetime bugs for non-TLS eh_globals [PR105880]

    This ensures that the single-threaded fallback buffer eh_globals is not
    destroyed during program termination, using the same immortalization
    technique used for error category objects.

    Also ensure that init._M_init can still be read after init has been
    destroyed, by making it a static data member.

    libstdc++-v3/ChangeLog:

            PR libstdc++/105880
            * libsupc++/eh_globals.cc (eh_globals): Ensure constant init and
            prevent destruction during termination.
            (__eh_globals_init::_M_init): Replace with static member _S_ini=
t.
            (__cxxabiv1::__cxa_get_globals_fast): Update.
            (__cxxabiv1::__cxa_get_globals): Likewise.=