From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 38EDB3858D37; Wed, 19 Apr 2023 14:48:17 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 38EDB3858D37 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1681915697; bh=kDDCd2jD7pOLEkP7sZxz7jiLqIPkCBxAzABtBvceWJY=; h=From:To:Subject:Date:In-Reply-To:References:From; b=PQ7VpmQr3S2r4xTH0aNf1NPvQ1QY6NF4sjlte0RTcxWsg27EUAqpAN23BgLqMn6bs EfU8Y38C9EbvxX8F3VPMAIWphmChuI2Wcg0eUXPtkDEcHrmEZnXSNcr234uz+afhI2 oDZO6QiiqMQV994iNetJMudlEIJyka6+s3nagK8o= From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug libstdc++/108969] [13/14 Regression] Initializing iostreams in the library needs a GLIBCXX_3.4.31 versioned symbol Date: Wed, 19 Apr 2023 14:48:17 +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: 13.0 X-Bugzilla-Keywords: ABI X-Bugzilla-Severity: normal X-Bugzilla-Who: jakub at gcc dot gnu.org X-Bugzilla-Status: REOPENED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: redi at gcc dot gnu.org X-Bugzilla-Target-Milestone: 13.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: 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 List-Id: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108969 --- Comment #24 from Jakub Jelinek --- You're right. libstdc++.so.6 would then initialize just the old symver copy and not the new one, which could be used by newer shared libraries. So that leaves the asm (".globl _Zwhatever"); in the header file.=