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 770143886C75; Thu, 15 Apr 2021 16:10:22 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 770143886C75
From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/96657] [9/10/11 Regression] libsupc++.a missing
 required functions from src/c++98/atomicity.cc when atomic builtins are not
 supported
Date: Thu, 15 Apr 2021 16:10:22 +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: 9.3.1
X-Bugzilla-Keywords: link-failure
X-Bugzilla-Severity: normal
X-Bugzilla-Who: cvs-commit at gcc dot gnu.org
X-Bugzilla-Status: ASSIGNED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: redi at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 9.4
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-96657-4-AojCLBQkHf@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-96657-4@http.gcc.gnu.org/bugzilla/>
References: <bug-96657-4@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: Thu, 15 Apr 2021 16:10:22 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96657

--- Comment #5 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:6c0c7fc6236470a533675cd3cd1ebb1cc3dd112c

commit r11-8198-g6c0c7fc6236470a533675cd3cd1ebb1cc3dd112c
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Wed Apr 14 20:48:54 2021 +0100

    libstdc++: Move atomic functions to libsupc++ [PR 96657]

    The changes for PR libstdc++/64735 mean that libsupc++ function might
    now depend on the __exchange_and_add and __atomic_add functions defined
    in config/cpu/*/atomicity.h which is not compiled into libsupc++. This
    causes a link failure for some targets when trying to use libsupc++
    without the rest of libstdc++.

    This patch simply moves the definitions of those functions into
    libsupc++ so that they are available there.

    libstdc++-v3/ChangeLog:

            PR libstdc++/96657
            * libsupc++/Makefile.am: Add atomicity.cc here.
            * src/c++98/Makefile.am: Remove it from here.
            * libsupc++/Makefile.in: Regenerate.
            * src/c++98/Makefile.in: Regenerate.
            * testsuite/18_support/exception_ptr/96657.cc: New test.=